diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index 49803528023b..f9fdf19de74a 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -2552,6 +2552,10 @@ static const struct dpcd_quirk dpcd_quirk_list[] = {
 	{ OUI(0x00, 0x0C, 0xE7), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_HBLANK_EXPANSION_REQUIRES_DSC) },
 	/* Apple MacBookPro 2017 15 inch eDP Retina panel reports too low DP_MAX_LINK_RATE */
 	{ OUI(0x00, 0x10, 0xfa), DEVICE_ID(101, 68, 21, 101, 98, 97), false, BIT(DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS) },
+	/* Synaptics Panamera supports only a compressed bpp of 12 above 50% of its max DSC pixel throughput */
+	{ OUI(0x90, 0xCC, 0x24), DEVICE_ID('S', 'Y', 'N', 'A', 0x53, 0x22), true, BIT(DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) },
+	{ OUI(0x90, 0xCC, 0x24), DEVICE_ID('S', 'Y', 'N', 'A', 0x53, 0x31), true, BIT(DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) },
+	{ OUI(0x90, 0xCC, 0x24), DEVICE_ID('S', 'Y', 'N', 'A', 0x53, 0x33), true, BIT(DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) },
 };
 
 #undef OUI
@@ -2841,6 +2845,158 @@ int drm_dp_dsc_sink_supported_input_bpcs(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_S
 }
 EXPORT_SYMBOL(drm_dp_dsc_sink_supported_input_bpcs);
 
+/*
+ * See DP Standard v2.1a 2.8.4 Minimum Slices/Display, Table 2-159 and
+ * Appendix L.1 Derivation of Slice Count Requirements.
+ */
+static int dsc_sink_min_slice_throughput(int peak_pixel_rate)
+{
+	if (peak_pixel_rate >= 4800000)
+		return 600000;
+	else if (peak_pixel_rate >= 2700000)
+		return 400000;
+	else
+		return 340000;
+}
+
+/**
+ * drm_dp_dsc_sink_max_slice_throughput() - Get a DSC sink's maximum pixel throughput per slice
+ * @dsc_dpcd: DSC sink's capabilities from DPCD
+ * @peak_pixel_rate: Cumulative peak pixel rate in kHz
+ * @is_rgb_yuv444: The mode is either RGB or YUV444
+ *
+ * Return the DSC sink device's maximum pixel throughput per slice, based on
+ * the device's @dsc_dpcd capabilities, the @peak_pixel_rate of the transferred
+ * stream(s) and whether the output format @is_rgb_yuv444 or yuv422/yuv420.
+ *
+ * Note that @peak_pixel_rate is the total pixel rate transferred to the same
+ * DSC/display sink. For instance to calculate a tile's slice count of an MST
+ * multi-tiled display sink (not considering here the required
+ * rounding/alignment of slice count)::
+ *
+ *   @peak_pixel_rate = tile_pixel_rate * tile_count
+ *   total_slice_count = @peak_pixel_rate / drm_dp_dsc_sink_max_slice_throughput(@peak_pixel_rate)
+ *   tile_slice_count = total_slice_count / tile_count
+ *
+ * Returns:
+ * The maximum pixel throughput per slice supported by the DSC sink device
+ * in kPixels/sec.
+ */
+int drm_dp_dsc_sink_max_slice_throughput(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
+					 int peak_pixel_rate, bool is_rgb_yuv444)
+{
+	int throughput;
+	int delta = 0;
+	int base;
+
+	throughput = dsc_dpcd[DP_DSC_PEAK_THROUGHPUT - DP_DSC_SUPPORT];
+
+	if (is_rgb_yuv444) {
+		throughput = (throughput & DP_DSC_THROUGHPUT_MODE_0_MASK) >>
+			     DP_DSC_THROUGHPUT_MODE_0_SHIFT;
+
+		delta = ((dsc_dpcd[DP_DSC_RC_BUF_BLK_SIZE - DP_DSC_SUPPORT]) &
+			 DP_DSC_THROUGHPUT_MODE_0_DELTA_MASK) >>
+			DP_DSC_THROUGHPUT_MODE_0_DELTA_SHIFT;	/* in units of 2 MPixels/sec */
+		delta *= 2000;
+	} else {
+		throughput = (throughput & DP_DSC_THROUGHPUT_MODE_1_MASK) >>
+			     DP_DSC_THROUGHPUT_MODE_1_SHIFT;
+	}
+
+	switch (throughput) {
+	case 0:
+		return dsc_sink_min_slice_throughput(peak_pixel_rate);
+	case 1:
+		base = 340000;
+		break;
+	case 2 ... 14:
+		base = 400000 + 50000 * (throughput - 2);
+		break;
+	case 15:
+		base = 170000;
+		break;
+	}
+
+	return base + delta;
+}
+EXPORT_SYMBOL(drm_dp_dsc_sink_max_slice_throughput);
+
+static u8 dsc_branch_dpcd_cap(const u8 dpcd[DP_DSC_BRANCH_CAP_SIZE], int reg)
+{
+	return dpcd[reg - DP_DSC_BRANCH_OVERALL_THROUGHPUT_0];
+}
+
+/**
+ * drm_dp_dsc_branch_max_overall_throughput() - Branch device's max overall DSC pixel throughput
+ * @dsc_branch_dpcd: DSC branch capabilities from DPCD
+ * @is_rgb_yuv444: The mode is either RGB or YUV444
+ *
+ * Return the branch device's maximum overall DSC pixel throughput, based on
+ * the device's DPCD DSC branch capabilities, and whether the output
+ * format @is_rgb_yuv444 or yuv422/yuv420.
+ *
+ * Returns:
+ * - 0:   The maximum overall throughput capability is not indicated by
+ *        the device separately and it must be determined from the per-slice
+ *        max throughput (see @drm_dp_dsc_branch_slice_max_throughput())
+ *        and the maximum slice count supported by the device.
+ * - > 0: The maximum overall DSC pixel throughput supported by the branch
+ *        device in kPixels/sec.
+ */
+int drm_dp_dsc_branch_max_overall_throughput(const u8 dsc_branch_dpcd[DP_DSC_BRANCH_CAP_SIZE],
+					     bool is_rgb_yuv444)
+{
+	int throughput;
+
+	if (is_rgb_yuv444)
+		throughput = dsc_branch_dpcd_cap(dsc_branch_dpcd,
+						 DP_DSC_BRANCH_OVERALL_THROUGHPUT_0);
+	else
+		throughput = dsc_branch_dpcd_cap(dsc_branch_dpcd,
+						 DP_DSC_BRANCH_OVERALL_THROUGHPUT_1);
+
+	switch (throughput) {
+	case 0:
+		return 0;
+	case 1:
+		return 680000;
+	default:
+		return 600000 + 50000 * throughput;
+	}
+}
+EXPORT_SYMBOL(drm_dp_dsc_branch_max_overall_throughput);
+
+/**
+ * drm_dp_dsc_branch_max_line_width() - Branch device's max DSC line width
+ * @dsc_branch_dpcd: DSC branch capabilities from DPCD
+ *
+ * Return the branch device's maximum overall DSC line width, based on
+ * the device's @dsc_branch_dpcd capabilities.
+ *
+ * Returns:
+ * - 0:        The maximum line width is not indicated by the device
+ *             separately and it must be determined from the maximum
+ *             slice count and slice-width supported by the device.
+ * - %-EINVAL: The device indicates an invalid maximum line width
+ *             (< 5120 pixels).
+ * - >= 5120:  The maximum line width in pixels.
+ */
+int drm_dp_dsc_branch_max_line_width(const u8 dsc_branch_dpcd[DP_DSC_BRANCH_CAP_SIZE])
+{
+	int line_width = dsc_branch_dpcd_cap(dsc_branch_dpcd, DP_DSC_BRANCH_MAX_LINE_WIDTH);
+
+	switch (line_width) {
+	case 0:
+		return 0;
+	case 1 ... 15:
+		return -EINVAL;
+	default:
+		return line_width * 320;
+	}
+}
+EXPORT_SYMBOL(drm_dp_dsc_branch_max_line_width);
+
 static int drm_dp_read_lttpr_regs(struct drm_dp_aux *aux,
 				  const u8 dpcd[DP_RECEIVER_CAP_SIZE], int address,
 				  u8 *buf, int buf_size)
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index 85dbdaa4a2e2..b2cb5ae5a139 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -419,6 +419,8 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
 		set_out_fence_for_crtc(state->state, crtc, fence_ptr);
 	} else if (property == crtc->scaling_filter_property) {
 		state->scaling_filter = val;
+	} else if (property == crtc->sharpness_strength_property) {
+		state->sharpness_strength = val;
 	} else if (crtc->funcs->atomic_set_property) {
 		return crtc->funcs->atomic_set_property(crtc, state, property, val);
 	} else {
@@ -456,6 +458,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc,
 		*val = 0;
 	else if (property == crtc->scaling_filter_property)
 		*val = state->scaling_filter;
+	else if (property == crtc->sharpness_strength_property)
+		*val = state->sharpness_strength;
 	else if (crtc->funcs->atomic_get_property)
 		return crtc->funcs->atomic_get_property(crtc, state, property, val);
 	else {
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 46655339003d..a7797d260f1e 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -229,6 +229,25 @@ struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc)
  * 		Driver's default scaling filter
  * 	Nearest Neighbor:
  * 		Nearest Neighbor scaling filter
+ * SHARPNESS_STRENGTH:
+ *	Atomic property for setting the sharpness strength/intensity by userspace.
+ *
+ *	The value of this property is set as an integer value ranging
+ *	from 0 - 255 where:
+ *
+ *	0: Sharpness feature is disabled(default value).
+ *
+ *	1: Minimum sharpness.
+ *
+ *	255: Maximum sharpness.
+ *
+ *	User can gradually increase or decrease the sharpness level and can
+ *	set the optimum value depending on content.
+ *	This value will be passed to kernel through the UAPI.
+ *	The setting of this property does not require modeset.
+ *	The sharpness effect takes place post blending on the final composed output.
+ *	If the feature is disabled, the content remains same without any sharpening effect
+ *	and when this feature is applied, it enhances the clarity of the content.
  */
 
 __printf(6, 0)
@@ -940,6 +959,22 @@ int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc,
 }
 EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property);
 
+int drm_crtc_create_sharpness_strength_property(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_property *prop =
+		drm_property_create_range(dev, 0, "SHARPNESS_STRENGTH", 0, 255);
+
+	if (!prop)
+		return -ENOMEM;
+
+	crtc->sharpness_strength_property = prop;
+	drm_object_attach_property(&crtc->base, prop, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_crtc_create_sharpness_strength_property);
+
 /**
  * drm_crtc_in_clone_mode - check if the given CRTC state is in clone mode
  *
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index e58c0c158b3a..84ec79b64960 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -13,6 +13,11 @@ subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
 # drivers. Define I915 when building i915.
 subdir-ccflags-y += -DI915
 
+# FIXME: Disable tracepoints on i915 for PREEMPT_RT, unfortunately
+# it's an all or nothing flag. You cannot selectively disable
+# only some tracepoints.
+subdir-ccflags-$(CONFIG_PREEMPT_RT) += -DNOTRACE
+
 subdir-ccflags-y += -I$(src)
 
 # Please keep these build lists sorted!
@@ -26,6 +31,7 @@ i915-y += \
 	i915_ioctl.o \
 	i915_irq.o \
 	i915_mitigations.o \
+	i915_mmio_range.o \
 	i915_module.o \
 	i915_params.o \
 	i915_pci.o \
@@ -228,6 +234,7 @@ i915-y += \
 	display/intel_bios.o \
 	display/intel_bo.o \
 	display/intel_bw.o \
+	display/intel_casf.o \
 	display/intel_cdclk.o \
 	display/intel_cmtg.o \
 	display/intel_color.o \
@@ -236,6 +243,7 @@ i915-y += \
 	display/intel_crtc.o \
 	display/intel_crtc_state_dump.o \
 	display/intel_cursor.o \
+	display/intel_dbuf_bw.o \
 	display/intel_display.o \
 	display/intel_display_conversion.o \
 	display/intel_display_driver.o \
@@ -248,6 +256,7 @@ i915-y += \
 	display/intel_display_rpm.o \
 	display/intel_display_rps.o \
 	display/intel_display_snapshot.o \
+	display/intel_display_utils.o \
 	display/intel_display_wa.o \
 	display/intel_dmc.o \
 	display/intel_dmc_wl.o \
@@ -297,9 +306,11 @@ i915-y += \
 	display/intel_vblank.o \
 	display/intel_vga.o \
 	display/intel_wm.o \
+	display/skl_prefill.o \
 	display/skl_scaler.o \
 	display/skl_universal_plane.o \
 	display/skl_watermark.o \
+	display/vlv_clock.o \
 	display/vlv_sideband.o
 i915-$(CONFIG_ACPI) += \
 	display/intel_acpi.o \
@@ -346,6 +357,7 @@ i915-y += \
 	display/intel_gmbus.o \
 	display/intel_hdmi.o \
 	display/intel_lspcon.o \
+	display/intel_lt_phy.o \
 	display/intel_lvds.o \
 	display/intel_panel.o \
 	display/intel_pfit.o \
diff --git a/drivers/gpu/drm/i915/display/g4x_dp.c b/drivers/gpu/drm/i915/display/g4x_dp.c
index aa159f9ce12f..a3ff21b2f69f 100644
--- a/drivers/gpu/drm/i915/display/g4x_dp.c
+++ b/drivers/gpu/drm/i915/display/g4x_dp.c
@@ -11,7 +11,6 @@
 
 #include "g4x_dp.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_audio.h"
 #include "intel_backlight.h"
 #include "intel_connector.h"
@@ -20,6 +19,7 @@
 #include "intel_display_power.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_aux.h"
 #include "intel_dp_link_training.h"
diff --git a/drivers/gpu/drm/i915/display/hsw_ips.c b/drivers/gpu/drm/i915/display/hsw_ips.c
index 927fe56aec77..f444c5b7a27b 100644
--- a/drivers/gpu/drm/i915/display/hsw_ips.c
+++ b/drivers/gpu/drm/i915/display/hsw_ips.c
@@ -191,45 +191,46 @@ bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
 
 static bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
-	/* IPS only exists on ULT machines and is tied to pipe A. */
 	if (!hsw_crtc_supports_ips(crtc))
 		return false;
 
-	if (!display->params.enable_ips)
-		return false;
-
 	if (crtc_state->pipe_bpp > 24)
 		return false;
 
-	/*
-	 * We compare against max which means we must take
-	 * the increased cdclk requirement into account when
-	 * calculating the new cdclk.
-	 *
-	 * Should measure whether using a lower cdclk w/o IPS
-	 */
-	if (display->platform.broadwell &&
-	    crtc_state->pixel_rate > display->cdclk.max_cdclk_freq * 95 / 100)
-		return false;
-
 	return true;
 }
 
+static int _hsw_ips_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (display->platform.broadwell)
+		return DIV_ROUND_UP(crtc_state->pixel_rate * 100, 95);
+
+	/* no IPS specific limits to worry about */
+	return 0;
+}
+
 int hsw_ips_min_cdclk(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-
-	if (!display->platform.broadwell)
-		return 0;
+	int min_cdclk;
 
 	if (!hsw_crtc_state_ips_capable(crtc_state))
 		return 0;
 
-	/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
-	return DIV_ROUND_UP(crtc_state->pixel_rate * 100, 95);
+	min_cdclk = _hsw_ips_min_cdclk(crtc_state);
+
+	/*
+	 * Do not ask for more than the max CDCLK frequency,
+	 * if that is not enough IPS will simply not be used.
+	 */
+	if (min_cdclk > display->cdclk.max_cdclk_freq)
+		return 0;
+
+	return min_cdclk;
 }
 
 int hsw_ips_compute_config(struct intel_atomic_state *state,
@@ -244,6 +245,12 @@ int hsw_ips_compute_config(struct intel_atomic_state *state,
 	if (!hsw_crtc_state_ips_capable(crtc_state))
 		return 0;
 
+	if (_hsw_ips_min_cdclk(crtc_state) > display->cdclk.max_cdclk_freq)
+		return 0;
+
+	if (!display->params.enable_ips)
+		return 0;
+
 	/*
 	 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
 	 * enabled and disabled dynamically based on package C states,
@@ -257,18 +264,6 @@ int hsw_ips_compute_config(struct intel_atomic_state *state,
 	if (!(crtc_state->active_planes & ~BIT(PLANE_CURSOR)))
 		return 0;
 
-	if (display->platform.broadwell) {
-		const struct intel_cdclk_state *cdclk_state;
-
-		cdclk_state = intel_atomic_get_cdclk_state(state);
-		if (IS_ERR(cdclk_state))
-			return PTR_ERR(cdclk_state);
-
-		/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
-		if (crtc_state->pixel_rate > intel_cdclk_logical(cdclk_state) * 95 / 100)
-			return 0;
-	}
-
 	crtc_state->ips_enabled = true;
 
 	return 0;
diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c
index 407deb5dfb57..6e39d7f2e0c2 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.c
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.c
@@ -11,7 +11,6 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "i9xx_plane.h"
 #include "i9xx_plane_regs.h"
 #include "intel_atomic.h"
@@ -19,6 +18,7 @@
 #include "intel_display_irq.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_fb.h"
 #include "intel_fbc.h"
 #include "intel_frontbuffer.h"
diff --git a/drivers/gpu/drm/i915/display/i9xx_wm.c b/drivers/gpu/drm/i915/display/i9xx_wm.c
index fd3b7b35f351..b262319bc83d 100644
--- a/drivers/gpu/drm/i915/display/i9xx_wm.c
+++ b/drivers/gpu/drm/i915/display/i9xx_wm.c
@@ -2295,12 +2295,11 @@ static void i9xx_update_wm(struct intel_display *display)
 
 	crtc = single_enabled_crtc(display);
 	if (display->platform.i915gm && crtc) {
-		struct drm_gem_object *obj;
-
-		obj = intel_fb_bo(crtc->base.primary->state->fb);
+		const struct drm_framebuffer *fb =
+			crtc->base.primary->state->fb;
 
 		/* self-refresh seems busted with untiled */
-		if (!intel_bo_is_tiled(obj))
+		if (fb->modifier == DRM_FORMAT_MOD_LINEAR)
 			crtc = NULL;
 	}
 
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 37faa8f19f6e..70d4c1bc70fc 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -35,7 +35,6 @@
 #include <drm/drm_probe_helper.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "icl_dsi.h"
 #include "icl_dsi_regs.h"
 #include "intel_atomic.h"
@@ -48,6 +47,7 @@
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
+#include "intel_display_utils.h"
 #include "intel_dsi.h"
 #include "intel_dsi_vbt.h"
 #include "intel_panel.h"
@@ -1655,7 +1655,7 @@ static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder,
 	if (ret)
 		return ret;
 
-	crtc_state->dsc.compression_enable = true;
+	intel_dsc_enable_on_crtc(crtc_state);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/display/intel_acpi.c b/drivers/gpu/drm/i915/display/intel_acpi.c
index 1addd6288241..68c01932f7b4 100644
--- a/drivers/gpu/drm/i915/display/intel_acpi.c
+++ b/drivers/gpu/drm/i915/display/intel_acpi.c
@@ -11,10 +11,10 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_acpi.h"
 #include "intel_display_core.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 
 #define INTEL_DSM_REVISION_ID 1 /* For Calpella anyway... */
 #define INTEL_DSM_FN_PLATFORM_MUX_INFO 1 /* No args */
diff --git a/drivers/gpu/drm/i915/display/intel_alpm.c b/drivers/gpu/drm/i915/display/intel_alpm.c
index ed7a7ed486b5..6372f533f65b 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.c
+++ b/drivers/gpu/drm/i915/display/intel_alpm.c
@@ -49,7 +49,7 @@ void intel_alpm_init(struct intel_dp *intel_dp)
 		return;
 
 	intel_dp->alpm_dpcd = dpcd;
-	mutex_init(&intel_dp->alpm_parameters.lock);
+	mutex_init(&intel_dp->alpm.lock);
 }
 
 static int get_silence_period_symbols(const struct intel_crtc_state *crtc_state)
@@ -58,43 +58,32 @@ static int get_silence_period_symbols(const struct intel_crtc_state *crtc_state)
 		1000 / 1000;
 }
 
-static int get_lfps_cycle_min_max_time(const struct intel_crtc_state *crtc_state,
-				       int *min, int *max)
+static void get_lfps_cycle_min_max_time(const struct intel_crtc_state *crtc_state,
+					int *min, int *max)
 {
 	if (crtc_state->port_clock < 540000) {
 		*min = 65 * LFPS_CYCLE_COUNT;
 		*max = 75 * LFPS_CYCLE_COUNT;
-	} else if (crtc_state->port_clock <= 810000) {
+	} else {
 		*min = 140;
 		*max = 800;
-	} else {
-		*min = *max = -1;
-		return -1;
 	}
-
-	return 0;
 }
 
 static int get_lfps_cycle_time(const struct intel_crtc_state *crtc_state)
 {
-	int tlfps_cycle_min, tlfps_cycle_max, ret;
+	int tlfps_cycle_min, tlfps_cycle_max;
 
-	ret = get_lfps_cycle_min_max_time(crtc_state, &tlfps_cycle_min,
-					  &tlfps_cycle_max);
-	if (ret)
-		return ret;
+	get_lfps_cycle_min_max_time(crtc_state, &tlfps_cycle_min,
+				    &tlfps_cycle_max);
 
 	return tlfps_cycle_min +  (tlfps_cycle_max - tlfps_cycle_min) / 2;
 }
 
 static int get_lfps_half_cycle_clocks(const struct intel_crtc_state *crtc_state)
 {
-	int lfps_cycle_time = get_lfps_cycle_time(crtc_state);
-
-	if (lfps_cycle_time < 0)
-		return -1;
-
-	return lfps_cycle_time * crtc_state->port_clock / 1000 / 1000 / (2 * LFPS_CYCLE_COUNT);
+	return get_lfps_cycle_time(crtc_state) * crtc_state->port_clock / 1000 /
+		1000 / (2 * LFPS_CYCLE_COUNT);
 }
 
 /*
@@ -133,7 +122,7 @@ static int _lnl_compute_aux_less_wake_time(const struct intel_crtc_state *crtc_s
 
 static int
 _lnl_compute_aux_less_alpm_params(struct intel_dp *intel_dp,
-				  const struct intel_crtc_state *crtc_state)
+				  struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	int aux_less_wake_time, aux_less_wake_lines, silence_period,
@@ -146,8 +135,6 @@ _lnl_compute_aux_less_alpm_params(struct intel_dp *intel_dp,
 	silence_period = get_silence_period_symbols(crtc_state);
 
 	lfps_half_cycle = get_lfps_half_cycle_clocks(crtc_state);
-	if (lfps_half_cycle < 0)
-		return false;
 
 	if (aux_less_wake_lines > ALPM_CTL_AUX_LESS_WAKE_TIME_MASK ||
 	    silence_period > PORT_ALPM_CTL_SILENCE_PERIOD_MASK ||
@@ -157,15 +144,15 @@ _lnl_compute_aux_less_alpm_params(struct intel_dp *intel_dp,
 	if (display->params.psr_safest_params)
 		aux_less_wake_lines = ALPM_CTL_AUX_LESS_WAKE_TIME_MASK;
 
-	intel_dp->alpm_parameters.aux_less_wake_lines = aux_less_wake_lines;
-	intel_dp->alpm_parameters.silence_period_sym_clocks = silence_period;
-	intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms = lfps_half_cycle;
+	crtc_state->alpm_state.aux_less_wake_lines = aux_less_wake_lines;
+	crtc_state->alpm_state.silence_period_sym_clocks = silence_period;
+	crtc_state->alpm_state.lfps_half_cycle_num_of_syms = lfps_half_cycle;
 
 	return true;
 }
 
 static bool _lnl_compute_alpm_params(struct intel_dp *intel_dp,
-				     const struct intel_crtc_state *crtc_state)
+				     struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	int check_entry_lines;
@@ -186,7 +173,7 @@ static bool _lnl_compute_alpm_params(struct intel_dp *intel_dp,
 	if (display->params.psr_safest_params)
 		check_entry_lines = 15;
 
-	intel_dp->alpm_parameters.check_entry_lines = check_entry_lines;
+	crtc_state->alpm_state.check_entry_lines = check_entry_lines;
 
 	return true;
 }
@@ -217,7 +204,7 @@ static int io_buffer_wake_time(const struct intel_crtc_state *crtc_state)
 }
 
 bool intel_alpm_compute_params(struct intel_dp *intel_dp,
-			       const struct intel_crtc_state *crtc_state)
+			       struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	int io_wake_lines, io_wake_time, fast_wake_lines, fast_wake_time;
@@ -255,8 +242,8 @@ bool intel_alpm_compute_params(struct intel_dp *intel_dp,
 		io_wake_lines = fast_wake_lines = max_wake_lines;
 
 	/* According to Bspec lower limit should be set as 7 lines. */
-	intel_dp->alpm_parameters.io_wake_lines = max(io_wake_lines, 7);
-	intel_dp->alpm_parameters.fast_wake_lines = max(fast_wake_lines, 7);
+	crtc_state->alpm_state.io_wake_lines = max(io_wake_lines, 7);
+	crtc_state->alpm_state.fast_wake_lines = max(fast_wake_lines, 7);
 
 	return true;
 }
@@ -270,12 +257,12 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 	int waketime_in_lines, first_sdp_position;
 	int context_latency, guardband;
 
-	if (intel_dp->alpm_parameters.lobf_disable_debug) {
+	if (intel_dp->alpm.lobf_disable_debug) {
 		drm_dbg_kms(display->drm, "LOBF is disabled by debug flag\n");
 		return;
 	}
 
-	if (intel_dp->alpm_parameters.sink_alpm_error)
+	if (intel_dp->alpm.sink_alpm_error)
 		return;
 
 	if (!intel_dp_is_edp(intel_dp))
@@ -306,9 +293,9 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 		    adjusted_mode->crtc_vdisplay - context_latency;
 	first_sdp_position = adjusted_mode->crtc_vtotal - adjusted_mode->crtc_vsync_start;
 	if (intel_alpm_aux_less_wake_supported(intel_dp))
-		waketime_in_lines = intel_dp->alpm_parameters.io_wake_lines;
+		waketime_in_lines = crtc_state->alpm_state.io_wake_lines;
 	else
-		waketime_in_lines = intel_dp->alpm_parameters.aux_less_wake_lines;
+		waketime_in_lines = crtc_state->alpm_state.aux_less_wake_lines;
 
 	crtc_state->has_lobf = (context_latency + guardband) >
 		(first_sdp_position + waketime_in_lines);
@@ -325,7 +312,7 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 					  !crtc_state->has_lobf))
 		return;
 
-	mutex_lock(&intel_dp->alpm_parameters.lock);
+	mutex_lock(&intel_dp->alpm.lock);
 	/*
 	 * Panel Replay on eDP is always using ALPM aux less. I.e. no need to
 	 * check panel support at this point.
@@ -334,7 +321,7 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 		alpm_ctl = ALPM_CTL_ALPM_ENABLE |
 			ALPM_CTL_ALPM_AUX_LESS_ENABLE |
 			ALPM_CTL_AUX_LESS_SLEEP_HOLD_TIME_50_SYMBOLS |
-			ALPM_CTL_AUX_LESS_WAKE_TIME(intel_dp->alpm_parameters.aux_less_wake_lines);
+			ALPM_CTL_AUX_LESS_WAKE_TIME(crtc_state->alpm_state.aux_less_wake_lines);
 
 		if (intel_dp->as_sdp_supported) {
 			u32 pr_alpm_ctl = PR_ALPM_CTL_ADAPTIVE_SYNC_SDP_POSITION_T1;
@@ -352,7 +339,7 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 
 	} else {
 		alpm_ctl = ALPM_CTL_EXTENDED_FAST_WAKE_ENABLE |
-			ALPM_CTL_EXTENDED_FAST_WAKE_TIME(intel_dp->alpm_parameters.fast_wake_lines);
+			ALPM_CTL_EXTENDED_FAST_WAKE_TIME(crtc_state->alpm_state.fast_wake_lines);
 	}
 
 	if (crtc_state->has_lobf) {
@@ -360,17 +347,17 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 		drm_dbg_kms(display->drm, "Link off between frames (LOBF) enabled\n");
 	}
 
-	alpm_ctl |= ALPM_CTL_ALPM_ENTRY_CHECK(intel_dp->alpm_parameters.check_entry_lines);
+	alpm_ctl |= ALPM_CTL_ALPM_ENTRY_CHECK(crtc_state->alpm_state.check_entry_lines);
 
 	intel_de_write(display, ALPM_CTL(display, cpu_transcoder), alpm_ctl);
-	mutex_unlock(&intel_dp->alpm_parameters.lock);
+	mutex_unlock(&intel_dp->alpm.lock);
 }
 
 void intel_alpm_configure(struct intel_dp *intel_dp,
 			  const struct intel_crtc_state *crtc_state)
 {
 	lnl_alpm_configure(intel_dp, crtc_state);
-	intel_dp->alpm_parameters.transcoder = crtc_state->cpu_transcoder;
+	intel_dp->alpm.transcoder = crtc_state->cpu_transcoder;
 }
 
 void intel_alpm_port_configure(struct intel_dp *intel_dp,
@@ -388,14 +375,14 @@ void intel_alpm_port_configure(struct intel_dp *intel_dp,
 			PORT_ALPM_CTL_MAX_PHY_SWING_SETUP(15) |
 			PORT_ALPM_CTL_MAX_PHY_SWING_HOLD(0) |
 			PORT_ALPM_CTL_SILENCE_PERIOD(
-				intel_dp->alpm_parameters.silence_period_sym_clocks);
+				crtc_state->alpm_state.silence_period_sym_clocks);
 		lfps_ctl_val = PORT_ALPM_LFPS_CTL_LFPS_CYCLE_COUNT(LFPS_CYCLE_COUNT) |
 			PORT_ALPM_LFPS_CTL_LFPS_HALF_CYCLE_DURATION(
-				intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms) |
+				crtc_state->alpm_state.lfps_half_cycle_num_of_syms) |
 			PORT_ALPM_LFPS_CTL_FIRST_LFPS_HALF_CYCLE_DURATION(
-				intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms) |
+				crtc_state->alpm_state.lfps_half_cycle_num_of_syms) |
 			PORT_ALPM_LFPS_CTL_LAST_LFPS_HALF_CYCLE_DURATION(
-				intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms);
+				crtc_state->alpm_state.lfps_half_cycle_num_of_syms);
 	}
 
 	intel_de_write(display, PORT_ALPM_CTL(port), alpm_ctl_val);
@@ -433,10 +420,10 @@ void intel_alpm_pre_plane_update(struct intel_atomic_state *state,
 			continue;
 
 		if (old_crtc_state->has_lobf) {
-			mutex_lock(&intel_dp->alpm_parameters.lock);
+			mutex_lock(&intel_dp->alpm.lock);
 			intel_de_write(display, ALPM_CTL(display, cpu_transcoder), 0);
 			drm_dbg_kms(display->drm, "Link off between frames (LOBF) disabled\n");
-			mutex_unlock(&intel_dp->alpm_parameters.lock);
+			mutex_unlock(&intel_dp->alpm.lock);
 		}
 	}
 }
@@ -530,7 +517,7 @@ i915_edp_lobf_debug_get(void *data, u64 *val)
 	struct intel_connector *connector = data;
 	struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
 
-	*val = intel_dp->alpm_parameters.lobf_disable_debug;
+	*val = intel_dp->alpm.lobf_disable_debug;
 
 	return 0;
 }
@@ -541,7 +528,7 @@ i915_edp_lobf_debug_set(void *data, u64 val)
 	struct intel_connector *connector = data;
 	struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
 
-	intel_dp->alpm_parameters.lobf_disable_debug = val;
+	intel_dp->alpm.lobf_disable_debug = val;
 
 	return 0;
 }
@@ -569,12 +556,12 @@ void intel_alpm_lobf_debugfs_add(struct intel_connector *connector)
 void intel_alpm_disable(struct intel_dp *intel_dp)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
-	enum transcoder cpu_transcoder = intel_dp->alpm_parameters.transcoder;
+	enum transcoder cpu_transcoder = intel_dp->alpm.transcoder;
 
 	if (DISPLAY_VER(display) < 20 || !intel_dp->alpm_dpcd)
 		return;
 
-	mutex_lock(&intel_dp->alpm_parameters.lock);
+	mutex_lock(&intel_dp->alpm.lock);
 
 	intel_de_rmw(display, ALPM_CTL(display, cpu_transcoder),
 		     ALPM_CTL_ALPM_ENABLE | ALPM_CTL_LOBF_ENABLE |
@@ -585,7 +572,7 @@ void intel_alpm_disable(struct intel_dp *intel_dp)
 		     PORT_ALPM_CTL_ALPM_AUX_LESS_ENABLE, 0);
 
 	drm_dbg_kms(display->drm, "Disabling ALPM\n");
-	mutex_unlock(&intel_dp->alpm_parameters.lock);
+	mutex_unlock(&intel_dp->alpm.lock);
 }
 
 bool intel_alpm_get_error(struct intel_dp *intel_dp)
diff --git a/drivers/gpu/drm/i915/display/intel_alpm.h b/drivers/gpu/drm/i915/display/intel_alpm.h
index a861c20b5d79..53599b464dea 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.h
+++ b/drivers/gpu/drm/i915/display/intel_alpm.h
@@ -17,7 +17,7 @@ struct intel_crtc;
 
 void intel_alpm_init(struct intel_dp *intel_dp);
 bool intel_alpm_compute_params(struct intel_dp *intel_dp,
-			       const struct intel_crtc_state *crtc_state);
+			       struct intel_crtc_state *crtc_state);
 void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 				    struct intel_crtc_state *crtc_state,
 				    struct drm_connector_state *conn_state);
diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c
index 3b14f929825a..a68fdbd2acb9 100644
--- a/drivers/gpu/drm/i915/display/intel_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_backlight.c
@@ -13,7 +13,6 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_backlight.h"
 #include "intel_backlight_regs.h"
 #include "intel_connector.h"
@@ -21,6 +20,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp_aux_backlight.h"
 #include "intel_dsi_dcs_backlight.h"
 #include "intel_panel.h"
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 3596dce84c28..e2b51fa21d93 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -36,11 +36,11 @@
 #include "soc/intel_rom.h"
 
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_display.h"
 #include "intel_display_core.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_gmbus.h"
 
 #define _INTEL_BIOS_PRIVATE
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index ac6da20d9529..3033c53e61d1 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -3,32 +3,23 @@
  * Copyright © 2019 Intel Corporation
  */
 
-#include <drm/drm_atomic_state_helper.h>
-
 #include "soc/intel_dram.h"
 
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
-#include "intel_atomic.h"
 #include "intel_bw.h"
-#include "intel_cdclk.h"
+#include "intel_crtc.h"
 #include "intel_display_core.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pcode.h"
 #include "intel_uncore.h"
 #include "skl_watermark.h"
 
-struct intel_dbuf_bw {
-	unsigned int max_bw[I915_MAX_DBUF_SLICES];
-	u8 active_planes[I915_MAX_DBUF_SLICES];
-};
-
 struct intel_bw_state {
 	struct intel_global_state base;
-	struct intel_dbuf_bw dbuf_bw[I915_MAX_PIPES];
 
 	/*
 	 * Contains a bit mask, used to determine, whether correspondent
@@ -836,49 +827,6 @@ void intel_bw_init_hw(struct intel_display *display)
 		icl_get_bw_info(display, dram_info, &icl_sa_info);
 }
 
-static unsigned int intel_bw_crtc_num_active_planes(const struct intel_crtc_state *crtc_state)
-{
-	/*
-	 * We assume cursors are small enough
-	 * to not not cause bandwidth problems.
-	 */
-	return hweight8(crtc_state->active_planes & ~BIT(PLANE_CURSOR));
-}
-
-static unsigned int intel_bw_crtc_data_rate(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_display *display = to_intel_display(crtc_state);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	unsigned int data_rate = 0;
-	enum plane_id plane_id;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		/*
-		 * We assume cursors are small enough
-		 * to not not cause bandwidth problems.
-		 */
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		data_rate += crtc_state->data_rate[plane_id];
-
-		if (DISPLAY_VER(display) < 11)
-			data_rate += crtc_state->data_rate_y[plane_id];
-	}
-
-	return data_rate;
-}
-
-/* "Maximum Pipe Read Bandwidth" */
-static int intel_bw_crtc_min_cdclk(struct intel_display *display,
-				   unsigned int data_rate)
-{
-	if (DISPLAY_VER(display) < 12)
-		return 0;
-
-	return DIV_ROUND_UP_ULL(mul_u32_u32(data_rate, 10), 512);
-}
-
 static unsigned int intel_bw_num_active_planes(struct intel_display *display,
 					       const struct intel_bw_state *bw_state)
 {
@@ -894,14 +842,13 @@ static unsigned int intel_bw_num_active_planes(struct intel_display *display,
 static unsigned int intel_bw_data_rate(struct intel_display *display,
 				       const struct intel_bw_state *bw_state)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	unsigned int data_rate = 0;
 	enum pipe pipe;
 
 	for_each_pipe(display, pipe)
 		data_rate += bw_state->data_rate[pipe];
 
-	if (DISPLAY_VER(display) >= 13 && i915_vtd_active(i915))
+	if (DISPLAY_VER(display) >= 13 && intel_display_vtd_active(display))
 		data_rate = DIV_ROUND_UP(data_rate * 105, 100);
 
 	return data_rate;
@@ -1262,223 +1209,6 @@ static int intel_bw_check_qgv_points(struct intel_display *display,
 					   old_bw_state, new_bw_state);
 }
 
-static bool intel_dbuf_bw_changed(struct intel_display *display,
-				  const struct intel_dbuf_bw *old_dbuf_bw,
-				  const struct intel_dbuf_bw *new_dbuf_bw)
-{
-	enum dbuf_slice slice;
-
-	for_each_dbuf_slice(display, slice) {
-		if (old_dbuf_bw->max_bw[slice] != new_dbuf_bw->max_bw[slice] ||
-		    old_dbuf_bw->active_planes[slice] != new_dbuf_bw->active_planes[slice])
-			return true;
-	}
-
-	return false;
-}
-
-static bool intel_bw_state_changed(struct intel_display *display,
-				   const struct intel_bw_state *old_bw_state,
-				   const struct intel_bw_state *new_bw_state)
-{
-	enum pipe pipe;
-
-	for_each_pipe(display, pipe) {
-		const struct intel_dbuf_bw *old_dbuf_bw =
-			&old_bw_state->dbuf_bw[pipe];
-		const struct intel_dbuf_bw *new_dbuf_bw =
-			&new_bw_state->dbuf_bw[pipe];
-
-		if (intel_dbuf_bw_changed(display, old_dbuf_bw, new_dbuf_bw))
-			return true;
-
-		if (intel_bw_crtc_min_cdclk(display, old_bw_state->data_rate[pipe]) !=
-		    intel_bw_crtc_min_cdclk(display, new_bw_state->data_rate[pipe]))
-			return true;
-	}
-
-	return false;
-}
-
-static void skl_plane_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
-				   struct intel_crtc *crtc,
-				   enum plane_id plane_id,
-				   const struct skl_ddb_entry *ddb,
-				   unsigned int data_rate)
-{
-	struct intel_display *display = to_intel_display(crtc);
-	unsigned int dbuf_mask = skl_ddb_dbuf_slice_mask(display, ddb);
-	enum dbuf_slice slice;
-
-	/*
-	 * The arbiter can only really guarantee an
-	 * equal share of the total bw to each plane.
-	 */
-	for_each_dbuf_slice_in_mask(display, slice, dbuf_mask) {
-		dbuf_bw->max_bw[slice] = max(dbuf_bw->max_bw[slice], data_rate);
-		dbuf_bw->active_planes[slice] |= BIT(plane_id);
-	}
-}
-
-static void skl_crtc_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
-				  const struct intel_crtc_state *crtc_state)
-{
-	struct intel_display *display = to_intel_display(crtc_state);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	enum plane_id plane_id;
-
-	memset(dbuf_bw, 0, sizeof(*dbuf_bw));
-
-	if (!crtc_state->hw.active)
-		return;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		/*
-		 * We assume cursors are small enough
-		 * to not cause bandwidth problems.
-		 */
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
-				       &crtc_state->wm.skl.plane_ddb[plane_id],
-				       crtc_state->data_rate[plane_id]);
-
-		if (DISPLAY_VER(display) < 11)
-			skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
-					       &crtc_state->wm.skl.plane_ddb_y[plane_id],
-					       crtc_state->data_rate[plane_id]);
-	}
-}
-
-/* "Maximum Data Buffer Bandwidth" */
-static int
-intel_bw_dbuf_min_cdclk(struct intel_display *display,
-			const struct intel_bw_state *bw_state)
-{
-	unsigned int total_max_bw = 0;
-	enum dbuf_slice slice;
-
-	for_each_dbuf_slice(display, slice) {
-		int num_active_planes = 0;
-		unsigned int max_bw = 0;
-		enum pipe pipe;
-
-		/*
-		 * The arbiter can only really guarantee an
-		 * equal share of the total bw to each plane.
-		 */
-		for_each_pipe(display, pipe) {
-			const struct intel_dbuf_bw *dbuf_bw = &bw_state->dbuf_bw[pipe];
-
-			max_bw = max(dbuf_bw->max_bw[slice], max_bw);
-			num_active_planes += hweight8(dbuf_bw->active_planes[slice]);
-		}
-		max_bw *= num_active_planes;
-
-		total_max_bw = max(total_max_bw, max_bw);
-	}
-
-	return DIV_ROUND_UP(total_max_bw, 64);
-}
-
-int intel_bw_min_cdclk(struct intel_display *display,
-		       const struct intel_bw_state *bw_state)
-{
-	enum pipe pipe;
-	int min_cdclk;
-
-	min_cdclk = intel_bw_dbuf_min_cdclk(display, bw_state);
-
-	for_each_pipe(display, pipe)
-		min_cdclk = max(min_cdclk,
-				intel_bw_crtc_min_cdclk(display,
-							bw_state->data_rate[pipe]));
-
-	return min_cdclk;
-}
-
-int intel_bw_calc_min_cdclk(struct intel_atomic_state *state,
-			    bool *need_cdclk_calc)
-{
-	struct intel_display *display = to_intel_display(state);
-	struct intel_bw_state *new_bw_state = NULL;
-	const struct intel_bw_state *old_bw_state = NULL;
-	const struct intel_cdclk_state *cdclk_state;
-	const struct intel_crtc_state *old_crtc_state;
-	const struct intel_crtc_state *new_crtc_state;
-	int old_min_cdclk, new_min_cdclk;
-	struct intel_crtc *crtc;
-	int i;
-
-	if (DISPLAY_VER(display) < 9)
-		return 0;
-
-	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
-					    new_crtc_state, i) {
-		struct intel_dbuf_bw old_dbuf_bw, new_dbuf_bw;
-
-		skl_crtc_calc_dbuf_bw(&old_dbuf_bw, old_crtc_state);
-		skl_crtc_calc_dbuf_bw(&new_dbuf_bw, new_crtc_state);
-
-		if (!intel_dbuf_bw_changed(display, &old_dbuf_bw, &new_dbuf_bw))
-			continue;
-
-		new_bw_state = intel_atomic_get_bw_state(state);
-		if (IS_ERR(new_bw_state))
-			return PTR_ERR(new_bw_state);
-
-		old_bw_state = intel_atomic_get_old_bw_state(state);
-
-		new_bw_state->dbuf_bw[crtc->pipe] = new_dbuf_bw;
-	}
-
-	if (!old_bw_state)
-		return 0;
-
-	if (intel_bw_state_changed(display, old_bw_state, new_bw_state)) {
-		int ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
-
-	old_min_cdclk = intel_bw_min_cdclk(display, old_bw_state);
-	new_min_cdclk = intel_bw_min_cdclk(display, new_bw_state);
-
-	/*
-	 * No need to check against the cdclk state if
-	 * the min cdclk doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to bandwidth
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_min_cdclk <= old_min_cdclk)
-		return 0;
-
-	cdclk_state = intel_atomic_get_cdclk_state(state);
-	if (IS_ERR(cdclk_state))
-		return PTR_ERR(cdclk_state);
-
-	/*
-	 * No need to recalculate the cdclk state if
-	 * the min cdclk doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to bandwidth
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_min_cdclk <= intel_cdclk_bw_min_cdclk(cdclk_state))
-		return 0;
-
-	drm_dbg_kms(display->drm,
-		    "new bandwidth min cdclk (%d kHz) > old min cdclk (%d kHz)\n",
-		    new_min_cdclk, intel_cdclk_bw_min_cdclk(cdclk_state));
-	*need_cdclk_calc = true;
-
-	return 0;
-}
-
 static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool *changed)
 {
 	struct intel_display *display = to_intel_display(state);
@@ -1489,13 +1219,13 @@ static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool *chan
 	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
 					    new_crtc_state, i) {
 		unsigned int old_data_rate =
-			intel_bw_crtc_data_rate(old_crtc_state);
+			intel_crtc_bw_data_rate(old_crtc_state);
 		unsigned int new_data_rate =
-			intel_bw_crtc_data_rate(new_crtc_state);
+			intel_crtc_bw_data_rate(new_crtc_state);
 		unsigned int old_active_planes =
-			intel_bw_crtc_num_active_planes(old_crtc_state);
+			intel_crtc_bw_num_active_planes(old_crtc_state);
 		unsigned int new_active_planes =
-			intel_bw_crtc_num_active_planes(new_crtc_state);
+			intel_crtc_bw_num_active_planes(new_crtc_state);
 		struct intel_bw_state *new_bw_state;
 
 		/*
@@ -1527,11 +1257,11 @@ static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool *chan
 
 static int intel_bw_modeset_checks(struct intel_atomic_state *state)
 {
-	struct intel_display *display = to_intel_display(state);
 	const struct intel_bw_state *old_bw_state;
 	struct intel_bw_state *new_bw_state;
+	int ret;
 
-	if (DISPLAY_VER(display) < 9)
+	if (!intel_any_crtc_active_changed(state))
 		return 0;
 
 	new_bw_state = intel_atomic_get_bw_state(state);
@@ -1543,13 +1273,9 @@ static int intel_bw_modeset_checks(struct intel_atomic_state *state)
 	new_bw_state->active_pipes =
 		intel_calc_active_pipes(state, old_bw_state->active_pipes);
 
-	if (new_bw_state->active_pipes != old_bw_state->active_pipes) {
-		int ret;
-
-		ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
+	ret = intel_atomic_lock_global_state(&new_bw_state->base);
+	if (ret)
+		return ret;
 
 	return 0;
 }
@@ -1599,7 +1325,7 @@ static int intel_bw_check_sagv_mask(struct intel_atomic_state *state)
 	return 0;
 }
 
-int intel_bw_atomic_check(struct intel_atomic_state *state, bool any_ms)
+int intel_bw_atomic_check(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
 	bool changed = false;
@@ -1610,11 +1336,9 @@ int intel_bw_atomic_check(struct intel_atomic_state *state, bool any_ms)
 	if (DISPLAY_VER(display) < 9)
 		return 0;
 
-	if (any_ms) {
-		ret = intel_bw_modeset_checks(state);
-		if (ret)
-			return ret;
-	}
+	ret = intel_bw_modeset_checks(state);
+	if (ret)
+		return ret;
 
 	ret = intel_bw_check_sagv_mask(state);
 	if (ret)
@@ -1657,9 +1381,9 @@ static void intel_bw_crtc_update(struct intel_bw_state *bw_state,
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
 	bw_state->data_rate[crtc->pipe] =
-		intel_bw_crtc_data_rate(crtc_state);
+		intel_crtc_bw_data_rate(crtc_state);
 	bw_state->num_active_planes[crtc->pipe] =
-		intel_bw_crtc_num_active_planes(crtc_state);
+		intel_crtc_bw_num_active_planes(crtc_state);
 
 	drm_dbg_kms(display->drm, "pipe %c data rate %u num active planes %u\n",
 		    pipe_name(crtc->pipe),
@@ -1690,8 +1414,6 @@ void intel_bw_update_hw_state(struct intel_display *display)
 		if (DISPLAY_VER(display) >= 11)
 			intel_bw_crtc_update(bw_state, crtc_state);
 
-		skl_crtc_calc_dbuf_bw(&bw_state->dbuf_bw[pipe], crtc_state);
-
 		/* initially SAGV has been forced off */
 		bw_state->pipe_sagv_reject |= BIT(pipe);
 	}
@@ -1709,7 +1431,6 @@ void intel_bw_crtc_disable_noatomic(struct intel_crtc *crtc)
 
 	bw_state->data_rate[pipe] = 0;
 	bw_state->num_active_planes[pipe] = 0;
-	memset(&bw_state->dbuf_bw[pipe], 0, sizeof(bw_state->dbuf_bw[pipe]));
 }
 
 static struct intel_global_state *
diff --git a/drivers/gpu/drm/i915/display/intel_bw.h b/drivers/gpu/drm/i915/display/intel_bw.h
index d51f50c9d302..99b447388245 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.h
+++ b/drivers/gpu/drm/i915/display/intel_bw.h
@@ -28,11 +28,7 @@ intel_atomic_get_bw_state(struct intel_atomic_state *state);
 
 void intel_bw_init_hw(struct intel_display *display);
 int intel_bw_init(struct intel_display *display);
-int intel_bw_atomic_check(struct intel_atomic_state *state, bool any_ms);
-int intel_bw_calc_min_cdclk(struct intel_atomic_state *state,
-			    bool *need_cdclk_calc);
-int intel_bw_min_cdclk(struct intel_display *display,
-		       const struct intel_bw_state *bw_state);
+int intel_bw_atomic_check(struct intel_atomic_state *state);
 void intel_bw_update_hw_state(struct intel_display *display);
 void intel_bw_crtc_disable_noatomic(struct intel_crtc *crtc);
 
diff --git a/drivers/gpu/drm/i915/display/intel_casf.c b/drivers/gpu/drm/i915/display/intel_casf.c
new file mode 100644
index 000000000000..95339b496f24
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_casf.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include <drm/drm_print.h>
+
+#include "i915_reg.h"
+#include "intel_casf.h"
+#include "intel_casf_regs.h"
+#include "intel_de.h"
+#include "intel_display_regs.h"
+#include "intel_display_types.h"
+#include "skl_scaler.h"
+
+#define MAX_PIXELS_FOR_3_TAP_FILTER (1920 * 1080)
+#define MAX_PIXELS_FOR_5_TAP_FILTER (3840 * 2160)
+
+#define FILTER_COEFF_0_125 125
+#define FILTER_COEFF_0_25 250
+#define FILTER_COEFF_0_5 500
+#define FILTER_COEFF_1_0 1000
+#define FILTER_COEFF_0_0 0
+#define SET_POSITIVE_SIGN(x) ((x) & (~SIGN))
+
+/**
+ * DOC: Content Adaptive Sharpness Filter (CASF)
+ *
+ * Starting from LNL the display engine supports an
+ * adaptive sharpening filter, enhancing the image
+ * quality. The display hardware utilizes the second
+ * pipe scaler for implementing CASF.
+ * If sharpness is being enabled then pipe scaling
+ * cannot be used.
+ * This filter operates on a region of pixels based
+ * on the tap size. Coefficients are used to generate
+ * an alpha value which blends the sharpened image to
+ * original image.
+ */
+
+/* Default LUT values to be loaded one time. */
+static const u16 sharpness_lut[] = {
+	4095, 2047, 1364, 1022, 816, 678, 579,
+	504, 444, 397, 357, 323, 293, 268, 244, 224,
+	204, 187, 170, 154, 139, 125, 111, 98, 85,
+	73, 60, 48, 36, 24, 12, 0
+};
+
+const u16 filtercoeff_1[] = {
+	FILTER_COEFF_0_0, FILTER_COEFF_0_0, FILTER_COEFF_0_5,
+	FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_0,
+	FILTER_COEFF_0_0,
+};
+
+const u16 filtercoeff_2[] = {
+	FILTER_COEFF_0_0, FILTER_COEFF_0_25, FILTER_COEFF_0_5,
+	FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_25,
+	FILTER_COEFF_0_0,
+};
+
+const u16 filtercoeff_3[] = {
+	FILTER_COEFF_0_125, FILTER_COEFF_0_25, FILTER_COEFF_0_5,
+	FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_25,
+	FILTER_COEFF_0_125,
+};
+
+static void intel_casf_filter_lut_load(struct intel_crtc *crtc,
+				       const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int i;
+
+	intel_de_write(display, SHRPLUT_INDEX(crtc->pipe),
+		       INDEX_AUTO_INCR | INDEX_VALUE(0));
+
+	for (i = 0; i < ARRAY_SIZE(sharpness_lut); i++)
+		intel_de_write(display, SHRPLUT_DATA(crtc->pipe),
+			       sharpness_lut[i]);
+}
+
+void intel_casf_update_strength(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	int win_size;
+
+	intel_de_rmw(display, SHARPNESS_CTL(crtc->pipe), FILTER_STRENGTH_MASK,
+		     FILTER_STRENGTH(crtc_state->hw.casf_params.strength));
+
+	win_size = intel_de_read(display, SKL_PS_WIN_SZ(crtc->pipe, 1));
+
+	intel_de_write_fw(display, SKL_PS_WIN_SZ(crtc->pipe, 1), win_size);
+}
+
+static void intel_casf_compute_win_size(struct intel_crtc_state *crtc_state)
+{
+	const struct drm_display_mode *mode = &crtc_state->hw.adjusted_mode;
+	u32 total_pixels = mode->hdisplay * mode->vdisplay;
+
+	if (total_pixels <= MAX_PIXELS_FOR_3_TAP_FILTER)
+		crtc_state->hw.casf_params.win_size = SHARPNESS_FILTER_SIZE_3X3;
+	else if (total_pixels <= MAX_PIXELS_FOR_5_TAP_FILTER)
+		crtc_state->hw.casf_params.win_size = SHARPNESS_FILTER_SIZE_5X5;
+	else
+		crtc_state->hw.casf_params.win_size = SHARPNESS_FILTER_SIZE_7X7;
+}
+
+int intel_casf_compute_config(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (!HAS_CASF(display))
+		return 0;
+
+	if (crtc_state->uapi.sharpness_strength == 0) {
+		crtc_state->hw.casf_params.casf_enable = false;
+		crtc_state->hw.casf_params.strength = 0;
+		return 0;
+	}
+
+	crtc_state->hw.casf_params.casf_enable = true;
+
+	/*
+	 * HW takes a value in form (1.0 + strength) in 4.4 fixed format.
+	 * Strength is from 0.0-14.9375 ie from 0-239.
+	 * User can give value from 0-255 but is clamped to 239.
+	 * Ex. User gives 85 which is 5.3125 and adding 1.0 gives 6.3125.
+	 * 6.3125 in 4.4 format is b01100101 which is equal to 101.
+	 * Also 85 + 16 = 101.
+	 */
+	crtc_state->hw.casf_params.strength =
+		min(crtc_state->uapi.sharpness_strength, 0xEF) + 0x10;
+
+	intel_casf_compute_win_size(crtc_state);
+
+	intel_casf_scaler_compute_config(crtc_state);
+
+	return 0;
+}
+
+void intel_casf_sharpness_get_config(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	u32 sharp;
+
+	sharp = intel_de_read(display, SHARPNESS_CTL(crtc->pipe));
+	if (sharp & FILTER_EN) {
+		if (drm_WARN_ON(display->drm,
+				REG_FIELD_GET(FILTER_STRENGTH_MASK, sharp) < 16))
+			crtc_state->hw.casf_params.strength = 0;
+		else
+			crtc_state->hw.casf_params.strength =
+				REG_FIELD_GET(FILTER_STRENGTH_MASK, sharp);
+		crtc_state->hw.casf_params.casf_enable = true;
+		crtc_state->hw.casf_params.win_size =
+			REG_FIELD_GET(FILTER_SIZE_MASK, sharp);
+	}
+}
+
+bool intel_casf_needs_scaler(const struct intel_crtc_state *crtc_state)
+{
+	if (crtc_state->hw.casf_params.casf_enable)
+		return true;
+
+	return false;
+}
+
+static int casf_coeff_tap(int i)
+{
+	return i % SCALER_FILTER_NUM_TAPS;
+}
+
+static u32 casf_coeff(struct intel_crtc_state *crtc_state, int t)
+{
+	struct scaler_filter_coeff value;
+	u32 coeff;
+
+	value = crtc_state->hw.casf_params.coeff[t];
+	value.sign = 0;
+
+	coeff = value.sign << 15 | value.exp << 12 | value.mantissa << 3;
+	return coeff;
+}
+
+/*
+ * 17 phase of 7 taps requires 119 coefficients in 60 dwords per set.
+ * To enable casf:  program scaler coefficients with the coeffients
+ * that are calculated and stored in hw.casf_params.coeff as per
+ * SCALER_COEFFICIENT_FORMAT
+ */
+static void intel_casf_write_coeff(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	int id = crtc_state->scaler_state.scaler_id;
+	int i;
+
+	if (id != 1) {
+		drm_WARN(display->drm, 0, "Second scaler not enabled\n");
+		return;
+	}
+
+	intel_de_write_fw(display, GLK_PS_COEF_INDEX_SET(crtc->pipe, id, 0),
+			  PS_COEF_INDEX_AUTO_INC);
+
+	for (i = 0; i < 17 * SCALER_FILTER_NUM_TAPS; i += 2) {
+		u32 tmp;
+		int t;
+
+		t = casf_coeff_tap(i);
+		tmp = casf_coeff(crtc_state, t);
+
+		t = casf_coeff_tap(i + 1);
+		tmp |= casf_coeff(crtc_state, t) << 16;
+
+		intel_de_write_fw(display, GLK_PS_COEF_DATA_SET(crtc->pipe, id, 0),
+				  tmp);
+	}
+}
+
+static void convert_sharpness_coef_binary(struct scaler_filter_coeff *coeff,
+					  u16 coefficient)
+{
+	if (coefficient < 25) {
+		coeff->mantissa = (coefficient * 2048) / 100;
+		coeff->exp = 3;
+	} else if (coefficient < 50) {
+		coeff->mantissa = (coefficient * 1024) / 100;
+		coeff->exp = 2;
+	} else if (coefficient < 100) {
+		coeff->mantissa = (coefficient * 512) / 100;
+		coeff->exp = 1;
+	} else {
+		coeff->mantissa = (coefficient * 256) / 100;
+		coeff->exp = 0;
+	}
+}
+
+void intel_casf_scaler_compute_config(struct intel_crtc_state *crtc_state)
+{
+	const u16 *filtercoeff;
+	u16 filter_coeff[SCALER_FILTER_NUM_TAPS];
+	u16 sumcoeff = 0;
+	int i;
+
+	if (crtc_state->hw.casf_params.win_size == 0)
+		filtercoeff = filtercoeff_1;
+	else if (crtc_state->hw.casf_params.win_size == 1)
+		filtercoeff = filtercoeff_2;
+	else
+		filtercoeff = filtercoeff_3;
+
+	for (i = 0; i < SCALER_FILTER_NUM_TAPS; i++)
+		sumcoeff += *(filtercoeff + i);
+
+	for (i = 0; i < SCALER_FILTER_NUM_TAPS; i++) {
+		filter_coeff[i] = (*(filtercoeff + i) * 100 / sumcoeff);
+		convert_sharpness_coef_binary(&crtc_state->hw.casf_params.coeff[i],
+					      filter_coeff[i]);
+	}
+}
+
+void intel_casf_enable(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	u32 sharpness_ctl;
+
+	intel_casf_filter_lut_load(crtc, crtc_state);
+
+	intel_casf_write_coeff(crtc_state);
+
+	sharpness_ctl = FILTER_EN | FILTER_STRENGTH(crtc_state->hw.casf_params.strength);
+
+	sharpness_ctl |= crtc_state->hw.casf_params.win_size;
+
+	intel_de_write(display, SHARPNESS_CTL(crtc->pipe), sharpness_ctl);
+
+	skl_scaler_setup_casf(crtc_state);
+}
+
+void intel_casf_disable(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	intel_de_write(display, SKL_PS_CTRL(crtc->pipe, 1), 0);
+	intel_de_write(display, SKL_PS_WIN_POS(crtc->pipe, 1), 0);
+	intel_de_write(display, SHARPNESS_CTL(crtc->pipe), 0);
+	intel_de_write(display, SKL_PS_WIN_SZ(crtc->pipe, 1), 0);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_casf.h b/drivers/gpu/drm/i915/display/intel_casf.h
new file mode 100644
index 000000000000..b3fb0bcb3f5b
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_casf.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_CASF_H__
+#define __INTEL_CASF_H__
+
+#include <linux/types.h>
+
+struct intel_crtc_state;
+
+int intel_casf_compute_config(struct intel_crtc_state *crtc_state);
+void intel_casf_update_strength(struct intel_crtc_state *new_crtc_state);
+void intel_casf_sharpness_get_config(struct intel_crtc_state *crtc_state);
+void intel_casf_enable(struct intel_crtc_state *crtc_state);
+void intel_casf_disable(const struct intel_crtc_state *crtc_state);
+void intel_casf_scaler_compute_config(struct intel_crtc_state *crtc_state);
+bool intel_casf_needs_scaler(const struct intel_crtc_state *crtc_state);
+
+#endif /* __INTEL_CASF_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_casf_regs.h b/drivers/gpu/drm/i915/display/intel_casf_regs.h
new file mode 100644
index 000000000000..87803cca510f
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_casf_regs.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_CASF_REGS_H__
+#define __INTEL_CASF_REGS_H__
+
+#include "intel_display_reg_defs.h"
+
+#define _SHARPNESS_CTL_A		0x682B0
+#define _SHARPNESS_CTL_B		0x68AB0
+#define SHARPNESS_CTL(pipe)		_MMIO_PIPE(pipe, _SHARPNESS_CTL_A, _SHARPNESS_CTL_B)
+#define   FILTER_EN			REG_BIT(31)
+#define   FILTER_STRENGTH_MASK		REG_GENMASK(15, 8)
+#define   FILTER_STRENGTH(x)		REG_FIELD_PREP(FILTER_STRENGTH_MASK, (x))
+#define   FILTER_SIZE_MASK		REG_GENMASK(1, 0)
+#define   SHARPNESS_FILTER_SIZE_3X3	REG_FIELD_PREP(FILTER_SIZE_MASK, 0)
+#define   SHARPNESS_FILTER_SIZE_5X5	REG_FIELD_PREP(FILTER_SIZE_MASK, 1)
+#define   SHARPNESS_FILTER_SIZE_7X7	REG_FIELD_PREP(FILTER_SIZE_MASK, 2)
+
+#define _SHRPLUT_DATA_A			0x682B8
+#define _SHRPLUT_DATA_B			0x68AB8
+#define SHRPLUT_DATA(pipe)		_MMIO_PIPE(pipe, _SHRPLUT_DATA_A, _SHRPLUT_DATA_B)
+
+#define _SHRPLUT_INDEX_A		0x682B4
+#define _SHRPLUT_INDEX_B		0x68AB4
+#define SHRPLUT_INDEX(pipe)		_MMIO_PIPE(pipe, _SHRPLUT_INDEX_A, _SHRPLUT_INDEX_B)
+#define   INDEX_AUTO_INCR		REG_BIT(10)
+#define   INDEX_VALUE_MASK		REG_GENMASK(4, 0)
+#define   INDEX_VALUE(x)		REG_FIELD_PREP(INDEX_VALUE_MASK, (x))
+
+#endif /* __INTEL_CASF_REGS__ */
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 9725eebe5706..50dca70a0665 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -32,15 +32,15 @@
 #include "hsw_ips.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
-#include "intel_bw.h"
 #include "intel_cdclk.h"
 #include "intel_crtc.h"
+#include "intel_dbuf_bw.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pci_config.h"
 #include "intel_pcode.h"
@@ -49,6 +49,7 @@
 #include "intel_vdsc.h"
 #include "skl_watermark.h"
 #include "skl_watermark_regs.h"
+#include "vlv_clock.h"
 #include "vlv_dsi.h"
 #include "vlv_sideband.h"
 
@@ -132,8 +133,8 @@ struct intel_cdclk_state {
 	 */
 	struct intel_cdclk_config actual;
 
-	/* minimum acceptable cdclk to satisfy bandwidth requirements */
-	int bw_min_cdclk;
+	/* minimum acceptable cdclk to satisfy DBUF bandwidth requirements */
+	int dbuf_bw_min_cdclk;
 	/* minimum acceptable cdclk for each pipe */
 	int min_cdclk[I915_MAX_PIPES];
 	/* minimum acceptable voltage level for each pipe */
@@ -145,6 +146,9 @@ struct intel_cdclk_state {
 	/* forced minimum cdclk for glk+ audio w/a */
 	int force_min_cdclk;
 
+	/* bitmask of enabled pipes */
+	u8 enabled_pipes;
+
 	/* bitmask of active pipes */
 	u8 active_pipes;
 
@@ -563,8 +567,7 @@ static void hsw_get_cdclk(struct intel_display *display,
 
 static int vlv_calc_cdclk(struct intel_display *display, int min_cdclk)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-	int freq_320 = (dev_priv->hpll_freq <<  1) % 320000 != 0 ?
+	int freq_320 = (vlv_clock_get_hpll_vco(display->drm) <<  1) % 320000 != 0 ?
 		333333 : 320000;
 
 	/*
@@ -584,8 +587,6 @@ static int vlv_calc_cdclk(struct intel_display *display, int min_cdclk)
 
 static u8 vlv_calc_voltage_level(struct intel_display *display, int cdclk)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-
 	if (display->platform.valleyview) {
 		if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */
 			return 2;
@@ -599,7 +600,7 @@ static u8 vlv_calc_voltage_level(struct intel_display *display, int cdclk)
 		 * hardware has shown that we just need to write the desired
 		 * CCK divider into the Punit register.
 		 */
-		return DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1;
+		return DIV_ROUND_CLOSEST(vlv_clock_get_hpll_vco(display->drm) << 1, cdclk) - 1;
 	}
 }
 
@@ -608,17 +609,12 @@ static void vlv_get_cdclk(struct intel_display *display,
 {
 	u32 val;
 
-	vlv_iosf_sb_get(display->drm, BIT(VLV_IOSF_SB_CCK) | BIT(VLV_IOSF_SB_PUNIT));
-
-	cdclk_config->vco = vlv_get_hpll_vco(display->drm);
-	cdclk_config->cdclk = vlv_get_cck_clock(display->drm, "cdclk",
-						CCK_DISPLAY_CLOCK_CONTROL,
-						cdclk_config->vco);
+	cdclk_config->vco = vlv_clock_get_hpll_vco(display->drm);
+	cdclk_config->cdclk = vlv_clock_get_cdclk(display->drm);
 
+	vlv_punit_get(display->drm);
 	val = vlv_punit_read(display->drm, PUNIT_REG_DSPSSPM);
-
-	vlv_iosf_sb_put(display->drm,
-			BIT(VLV_IOSF_SB_CCK) | BIT(VLV_IOSF_SB_PUNIT));
+	vlv_punit_put(display->drm);
 
 	if (display->platform.valleyview)
 		cdclk_config->voltage_level = (val & DSPFREQGUAR_MASK) >>
@@ -630,7 +626,6 @@ static void vlv_get_cdclk(struct intel_display *display,
 
 static void vlv_program_pfi_credits(struct intel_display *display)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	unsigned int credits, default_credits;
 
 	if (display->platform.cherryview)
@@ -638,7 +633,7 @@ static void vlv_program_pfi_credits(struct intel_display *display)
 	else
 		default_credits = PFI_CREDIT(8);
 
-	if (display->cdclk.hw.cdclk >= dev_priv->czclk_freq) {
+	if (display->cdclk.hw.cdclk >= vlv_clock_get_czclk(display->drm)) {
 		/* CHV suggested value is 31 or 63 */
 		if (display->platform.cherryview)
 			credits = PFI_CREDIT_63;
@@ -670,7 +665,6 @@ static void vlv_set_cdclk(struct intel_display *display,
 			  const struct intel_cdclk_config *cdclk_config,
 			  enum pipe pipe)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	int cdclk = cdclk_config->cdclk;
 	u32 val, cmd = cdclk_config->voltage_level;
 	intel_wakeref_t wakeref;
@@ -715,7 +709,7 @@ static void vlv_set_cdclk(struct intel_display *display,
 	if (cdclk == 400000) {
 		u32 divider;
 
-		divider = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1,
+		divider = DIV_ROUND_CLOSEST(vlv_clock_get_hpll_vco(display->drm) << 1,
 					    cdclk) - 1;
 
 		/* adjust cdclk divider */
@@ -1567,7 +1561,7 @@ static int bxt_calc_cdclk(struct intel_display *display, int min_cdclk)
 	drm_WARN(display->drm, 1,
 		 "Cannot satisfy minimum cdclk %d with refclk %u\n",
 		 min_cdclk, display->cdclk.hw.ref);
-	return 0;
+	return display->cdclk.max_cdclk_freq;
 }
 
 static int bxt_calc_cdclk_pll_vco(struct intel_display *display, int cdclk)
@@ -2600,6 +2594,12 @@ static void intel_set_cdclk(struct intel_display *display,
 	}
 }
 
+static bool dg2_power_well_count(struct intel_display *display,
+				 const struct intel_cdclk_state *cdclk_state)
+{
+	return display->platform.dg2 ? hweight8(cdclk_state->active_pipes) : 0;
+}
+
 static void intel_cdclk_pcode_pre_notify(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
@@ -2612,16 +2612,16 @@ static void intel_cdclk_pcode_pre_notify(struct intel_atomic_state *state)
 
 	if (!intel_cdclk_changed(&old_cdclk_state->actual,
 				 &new_cdclk_state->actual) &&
-				 new_cdclk_state->active_pipes ==
-				 old_cdclk_state->active_pipes)
+	    dg2_power_well_count(display, old_cdclk_state) ==
+	    dg2_power_well_count(display, new_cdclk_state))
 		return;
 
 	/* According to "Sequence Before Frequency Change", voltage level set to 0x3 */
 	voltage_level = DISPLAY_TO_PCODE_VOLTAGE_MAX;
 
 	change_cdclk = new_cdclk_state->actual.cdclk != old_cdclk_state->actual.cdclk;
-	update_pipe_count = hweight8(new_cdclk_state->active_pipes) >
-			    hweight8(old_cdclk_state->active_pipes);
+	update_pipe_count = dg2_power_well_count(display, new_cdclk_state) >
+		dg2_power_well_count(display, old_cdclk_state);
 
 	/*
 	 * According to "Sequence Before Frequency Change",
@@ -2639,7 +2639,7 @@ static void intel_cdclk_pcode_pre_notify(struct intel_atomic_state *state)
 	 * no action if it is decreasing, before the change
 	 */
 	if (update_pipe_count)
-		num_active_pipes = hweight8(new_cdclk_state->active_pipes);
+		num_active_pipes = dg2_power_well_count(display, new_cdclk_state);
 
 	intel_pcode_notify(display, voltage_level, num_active_pipes, cdclk,
 			   change_cdclk, update_pipe_count);
@@ -2659,8 +2659,8 @@ static void intel_cdclk_pcode_post_notify(struct intel_atomic_state *state)
 	voltage_level = new_cdclk_state->actual.voltage_level;
 
 	update_cdclk = new_cdclk_state->actual.cdclk != old_cdclk_state->actual.cdclk;
-	update_pipe_count = hweight8(new_cdclk_state->active_pipes) <
-			    hweight8(old_cdclk_state->active_pipes);
+	update_pipe_count = dg2_power_well_count(display, new_cdclk_state) <
+		dg2_power_well_count(display, old_cdclk_state);
 
 	/*
 	 * According to "Sequence After Frequency Change",
@@ -2676,7 +2676,7 @@ static void intel_cdclk_pcode_post_notify(struct intel_atomic_state *state)
 	 * no action if it is increasing, after the change
 	 */
 	if (update_pipe_count)
-		num_active_pipes = hweight8(new_cdclk_state->active_pipes);
+		num_active_pipes = dg2_power_well_count(display, new_cdclk_state);
 
 	intel_pcode_notify(display, voltage_level, num_active_pipes, cdclk,
 			   update_cdclk, update_pipe_count);
@@ -2711,6 +2711,9 @@ intel_set_cdclk_pre_plane_update(struct intel_atomic_state *state)
 	struct intel_cdclk_config cdclk_config;
 	enum pipe pipe;
 
+	if (!new_cdclk_state)
+		return;
+
 	if (!intel_cdclk_changed(&old_cdclk_state->actual,
 				 &new_cdclk_state->actual))
 		return;
@@ -2763,6 +2766,9 @@ intel_set_cdclk_post_plane_update(struct intel_atomic_state *state)
 		intel_atomic_get_new_cdclk_state(state);
 	enum pipe pipe;
 
+	if (!new_cdclk_state)
+		return;
+
 	if (!intel_cdclk_changed(&old_cdclk_state->actual,
 				 &new_cdclk_state->actual))
 		return;
@@ -2800,16 +2806,20 @@ static int intel_cdclk_guardband(struct intel_display *display)
 		return 90;
 }
 
-static int intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state)
+static int _intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state, int pixel_rate)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	int ppc = intel_cdclk_ppc(display, crtc_state->double_wide);
 	int guardband = intel_cdclk_guardband(display);
-	int pixel_rate = crtc_state->pixel_rate;
 
 	return DIV_ROUND_UP(pixel_rate * 100, guardband * ppc);
 }
 
+static int intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	return _intel_pixel_rate_to_cdclk(crtc_state, crtc_state->pixel_rate);
+}
+
 static int intel_planes_min_cdclk(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -2818,12 +2828,12 @@ static int intel_planes_min_cdclk(const struct intel_crtc_state *crtc_state)
 	int min_cdclk = 0;
 
 	for_each_intel_plane_on_crtc(display->drm, crtc, plane)
-		min_cdclk = max(min_cdclk, crtc_state->min_cdclk[plane->id]);
+		min_cdclk = max(min_cdclk, crtc_state->plane_min_cdclk[plane->id]);
 
 	return min_cdclk;
 }
 
-static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state)
+int intel_crtc_min_cdclk(const struct intel_crtc_state *crtc_state)
 {
 	int min_cdclk;
 
@@ -2831,6 +2841,8 @@ static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_stat
 		return 0;
 
 	min_cdclk = intel_pixel_rate_to_cdclk(crtc_state);
+	min_cdclk = max(min_cdclk, intel_crtc_bw_min_cdclk(crtc_state));
+	min_cdclk = max(min_cdclk, intel_fbc_min_cdclk(crtc_state));
 	min_cdclk = max(min_cdclk, hsw_ips_min_cdclk(crtc_state));
 	min_cdclk = max(min_cdclk, intel_audio_min_cdclk(crtc_state));
 	min_cdclk = max(min_cdclk, vlv_dsi_min_cdclk(crtc_state));
@@ -2840,51 +2852,110 @@ static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_stat
 	return min_cdclk;
 }
 
+static int intel_cdclk_update_crtc_min_cdclk(struct intel_atomic_state *state,
+					     struct intel_crtc *crtc,
+					     int old_min_cdclk, int new_min_cdclk,
+					     bool *need_cdclk_calc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_cdclk_state *cdclk_state;
+	bool allow_cdclk_decrease = intel_any_crtc_needs_modeset(state);
+	int ret;
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state = intel_atomic_get_cdclk_state(state);
+	if (IS_ERR(cdclk_state))
+		return PTR_ERR(cdclk_state);
+
+	old_min_cdclk = cdclk_state->min_cdclk[crtc->pipe];
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state->min_cdclk[crtc->pipe] = new_min_cdclk;
+
+	ret = intel_atomic_lock_global_state(&cdclk_state->base);
+	if (ret)
+		return ret;
+
+	*need_cdclk_calc = true;
+
+	drm_dbg_kms(display->drm,
+		    "[CRTC:%d:%s] min cdclk: %d kHz -> %d kHz\n",
+		    crtc->base.base.id, crtc->base.name,
+		    old_min_cdclk, new_min_cdclk);
+
+	return 0;
+}
+
+int intel_cdclk_update_dbuf_bw_min_cdclk(struct intel_atomic_state *state,
+					 int old_min_cdclk, int new_min_cdclk,
+					 bool *need_cdclk_calc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_cdclk_state *cdclk_state;
+	bool allow_cdclk_decrease = intel_any_crtc_needs_modeset(state);
+	int ret;
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state = intel_atomic_get_cdclk_state(state);
+	if (IS_ERR(cdclk_state))
+		return PTR_ERR(cdclk_state);
+
+	old_min_cdclk = cdclk_state->dbuf_bw_min_cdclk;
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state->dbuf_bw_min_cdclk = new_min_cdclk;
+
+	ret = intel_atomic_lock_global_state(&cdclk_state->base);
+	if (ret)
+		return ret;
+
+	*need_cdclk_calc = true;
+
+	drm_dbg_kms(display->drm,
+		    "dbuf bandwidth min cdclk: %d kHz -> %d kHz\n",
+		    old_min_cdclk, new_min_cdclk);
+
+	return 0;
+}
+
+static bool glk_cdclk_audio_wa_needed(struct intel_display *display,
+				      const struct intel_cdclk_state *cdclk_state)
+{
+	return display->platform.geminilake &&
+		cdclk_state->enabled_pipes &&
+		!is_power_of_2(cdclk_state->enabled_pipes);
+}
+
 static int intel_compute_min_cdclk(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
 	struct intel_cdclk_state *cdclk_state =
 		intel_atomic_get_new_cdclk_state(state);
-	const struct intel_bw_state *bw_state;
-	struct intel_crtc *crtc;
-	struct intel_crtc_state *crtc_state;
-	int min_cdclk, i;
 	enum pipe pipe;
+	int min_cdclk;
 
-	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
-		int ret;
-
-		min_cdclk = intel_crtc_compute_min_cdclk(crtc_state);
-		if (min_cdclk < 0)
-			return min_cdclk;
-
-		if (cdclk_state->min_cdclk[crtc->pipe] == min_cdclk)
-			continue;
-
-		cdclk_state->min_cdclk[crtc->pipe] = min_cdclk;
-
-		ret = intel_atomic_lock_global_state(&cdclk_state->base);
-		if (ret)
-			return ret;
-	}
-
-	bw_state = intel_atomic_get_new_bw_state(state);
-	if (bw_state) {
-		min_cdclk = intel_bw_min_cdclk(display, bw_state);
-
-		if (cdclk_state->bw_min_cdclk != min_cdclk) {
-			int ret;
-
-			cdclk_state->bw_min_cdclk = min_cdclk;
-
-			ret = intel_atomic_lock_global_state(&cdclk_state->base);
-			if (ret)
-				return ret;
-		}
-	}
-
-	min_cdclk = max(cdclk_state->force_min_cdclk,
-			cdclk_state->bw_min_cdclk);
+	min_cdclk = cdclk_state->force_min_cdclk;
+	min_cdclk = max(min_cdclk, cdclk_state->dbuf_bw_min_cdclk);
 	for_each_pipe(display, pipe)
 		min_cdclk = max(min_cdclk, cdclk_state->min_cdclk[pipe]);
 
@@ -2896,8 +2967,7 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
 	 * by changing the cd2x divider (see glk_cdclk_table[]) and
 	 * thus a full modeset won't be needed then.
 	 */
-	if (display->platform.geminilake && cdclk_state->active_pipes &&
-	    !is_power_of_2(cdclk_state->active_pipes))
+	if (glk_cdclk_audio_wa_needed(display, cdclk_state))
 		min_cdclk = max(min_cdclk, 2 * 96000);
 
 	if (min_cdclk > display->cdclk.max_cdclk_freq) {
@@ -3183,38 +3253,66 @@ intel_atomic_get_cdclk_state(struct intel_atomic_state *state)
 	return to_intel_cdclk_state(cdclk_state);
 }
 
-int intel_cdclk_atomic_check(struct intel_atomic_state *state,
-			     bool *need_cdclk_calc)
+static int intel_cdclk_modeset_checks(struct intel_atomic_state *state,
+				      bool *need_cdclk_calc)
 {
+	struct intel_display *display = to_intel_display(state);
 	const struct intel_cdclk_state *old_cdclk_state;
-	const struct intel_cdclk_state *new_cdclk_state;
-	struct intel_plane_state __maybe_unused *plane_state;
-	struct intel_plane *plane;
+	struct intel_cdclk_state *new_cdclk_state;
 	int ret;
-	int i;
 
-	/*
-	 * active_planes bitmask has been updated, and potentially affected
-	 * planes are part of the state. We can now compute the minimum cdclk
-	 * for each plane.
-	 */
-	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
-		ret = intel_plane_calc_min_cdclk(state, plane, need_cdclk_calc);
-		if (ret)
-			return ret;
-	}
+	if (!intel_any_crtc_enable_changed(state) &&
+	    !intel_any_crtc_active_changed(state))
+		return 0;
 
-	ret = intel_bw_calc_min_cdclk(state, need_cdclk_calc);
+	new_cdclk_state = intel_atomic_get_cdclk_state(state);
+	if (IS_ERR(new_cdclk_state))
+		return PTR_ERR(new_cdclk_state);
+
+	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
+
+	new_cdclk_state->enabled_pipes =
+		intel_calc_enabled_pipes(state, old_cdclk_state->enabled_pipes);
+
+	new_cdclk_state->active_pipes =
+		intel_calc_active_pipes(state, old_cdclk_state->active_pipes);
+
+	ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
 	if (ret)
 		return ret;
 
-	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
-	new_cdclk_state = intel_atomic_get_new_cdclk_state(state);
-
-	if (new_cdclk_state &&
-	    old_cdclk_state->force_min_cdclk != new_cdclk_state->force_min_cdclk)
+	if (!old_cdclk_state->active_pipes != !new_cdclk_state->active_pipes)
 		*need_cdclk_calc = true;
 
+	if (glk_cdclk_audio_wa_needed(display, old_cdclk_state) !=
+	    glk_cdclk_audio_wa_needed(display, new_cdclk_state))
+		*need_cdclk_calc = true;
+
+	if (dg2_power_well_count(display, old_cdclk_state) !=
+	    dg2_power_well_count(display, new_cdclk_state))
+		*need_cdclk_calc = true;
+
+	return 0;
+}
+
+static int intel_crtcs_calc_min_cdclk(struct intel_atomic_state *state,
+				      bool *need_cdclk_calc)
+{
+	const struct intel_crtc_state *old_crtc_state;
+	const struct intel_crtc_state *new_crtc_state;
+	struct intel_crtc *crtc;
+	int i, ret;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		ret = intel_cdclk_update_crtc_min_cdclk(state, crtc,
+							old_crtc_state->min_cdclk,
+							new_crtc_state->min_cdclk,
+							need_cdclk_calc);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -3250,18 +3348,17 @@ static bool intel_cdclk_need_serialize(struct intel_display *display,
 				       const struct intel_cdclk_state *old_cdclk_state,
 				       const struct intel_cdclk_state *new_cdclk_state)
 {
-	bool power_well_cnt_changed = hweight8(old_cdclk_state->active_pipes) !=
-				      hweight8(new_cdclk_state->active_pipes);
-	bool cdclk_changed = intel_cdclk_changed(&old_cdclk_state->actual,
-						 &new_cdclk_state->actual);
 	/*
-	 * We need to poke hw for gen >= 12, because we notify PCode if
+	 * We need to poke hw for DG2, because we notify PCode if
 	 * pipe power well count changes.
 	 */
-	return cdclk_changed || (display->platform.dg2 && power_well_cnt_changed);
+	return intel_cdclk_changed(&old_cdclk_state->actual,
+				   &new_cdclk_state->actual) ||
+		dg2_power_well_count(display, old_cdclk_state) !=
+		dg2_power_well_count(display, new_cdclk_state);
 }
 
-int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
 	const struct intel_cdclk_state *old_cdclk_state;
@@ -3275,9 +3372,6 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 
 	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
 
-	new_cdclk_state->active_pipes =
-		intel_calc_active_pipes(state, old_cdclk_state->active_pipes);
-
 	ret = intel_cdclk_modeset_calc_cdclk(state);
 	if (ret)
 		return ret;
@@ -3290,9 +3384,7 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 		ret = intel_atomic_serialize_global_state(&new_cdclk_state->base);
 		if (ret)
 			return ret;
-	} else if (old_cdclk_state->active_pipes != new_cdclk_state->active_pipes ||
-		   old_cdclk_state->force_min_cdclk != new_cdclk_state->force_min_cdclk ||
-		   intel_cdclk_changed(&old_cdclk_state->logical,
+	} else if (intel_cdclk_changed(&old_cdclk_state->logical,
 				       &new_cdclk_state->logical)) {
 		ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
 		if (ret)
@@ -3374,14 +3466,55 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 	return 0;
 }
 
+int intel_cdclk_atomic_check(struct intel_atomic_state *state)
+{
+	const struct intel_cdclk_state *old_cdclk_state;
+	struct intel_cdclk_state *new_cdclk_state;
+	bool need_cdclk_calc = false;
+	int ret;
+
+	ret = intel_cdclk_modeset_checks(state, &need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	ret = intel_crtcs_calc_min_cdclk(state, &need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	ret = intel_dbuf_bw_calc_min_cdclk(state, &need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
+	new_cdclk_state = intel_atomic_get_new_cdclk_state(state);
+
+	if (new_cdclk_state &&
+	    old_cdclk_state->force_min_cdclk != new_cdclk_state->force_min_cdclk) {
+		ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
+		if (ret)
+			return ret;
+
+		need_cdclk_calc = true;
+	}
+
+	if (need_cdclk_calc) {
+		ret = intel_modeset_calc_cdclk(state);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 void intel_cdclk_update_hw_state(struct intel_display *display)
 {
-	const struct intel_bw_state *bw_state =
-		to_intel_bw_state(display->bw.obj.state);
+	const struct intel_dbuf_bw_state *dbuf_bw_state =
+		to_intel_dbuf_bw_state(display->dbuf_bw.obj.state);
 	struct intel_cdclk_state *cdclk_state =
 		to_intel_cdclk_state(display->cdclk.obj.state);
 	struct intel_crtc *crtc;
 
+	cdclk_state->enabled_pipes = 0;
 	cdclk_state->active_pipes = 0;
 
 	for_each_intel_crtc(display->drm, crtc) {
@@ -3389,14 +3522,16 @@ void intel_cdclk_update_hw_state(struct intel_display *display)
 			to_intel_crtc_state(crtc->base.state);
 		enum pipe pipe = crtc->pipe;
 
+		if (crtc_state->hw.enable)
+			cdclk_state->enabled_pipes |= BIT(pipe);
 		if (crtc_state->hw.active)
 			cdclk_state->active_pipes |= BIT(pipe);
 
-		cdclk_state->min_cdclk[pipe] = intel_crtc_compute_min_cdclk(crtc_state);
+		cdclk_state->min_cdclk[pipe] = crtc_state->min_cdclk;
 		cdclk_state->min_voltage_level[pipe] = crtc_state->min_voltage_level;
 	}
 
-	cdclk_state->bw_min_cdclk = intel_bw_min_cdclk(display, bw_state);
+	cdclk_state->dbuf_bw_min_cdclk = intel_dbuf_bw_min_cdclk(display, dbuf_bw_state);
 }
 
 void intel_cdclk_crtc_disable_noatomic(struct intel_crtc *crtc)
@@ -3565,13 +3700,6 @@ static int pch_rawclk(struct intel_display *display)
 	return (intel_de_read(display, PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK) * 1000;
 }
 
-static int vlv_hrawclk(struct intel_display *display)
-{
-	/* RAWCLK_FREQ_VLV register updated from power well code */
-	return vlv_get_cck_clock_hpll(display->drm, "hrawclk",
-				      CCK_DISPLAY_REF_CLOCK_CONTROL);
-}
-
 static int i9xx_hrawclk(struct intel_display *display)
 {
 	struct drm_i915_private *i915 = to_i915(display->drm);
@@ -3605,7 +3733,7 @@ u32 intel_read_rawclk(struct intel_display *display)
 	else if (HAS_PCH_SPLIT(display))
 		freq = pch_rawclk(display);
 	else if (display->platform.valleyview || display->platform.cherryview)
-		freq = vlv_hrawclk(display);
+		freq = vlv_clock_get_hrawclk(display->drm);
 	else if (DISPLAY_VER(display) >= 3)
 		freq = i9xx_hrawclk(display);
 	else
@@ -3897,11 +4025,6 @@ int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe
 	return cdclk_state->min_cdclk[pipe];
 }
 
-int intel_cdclk_bw_min_cdclk(const struct intel_cdclk_state *cdclk_state)
-{
-	return cdclk_state->bw_min_cdclk;
-}
-
 bool intel_cdclk_pmdemand_needs_update(struct intel_atomic_state *state)
 {
 	const struct intel_cdclk_state *new_cdclk_state, *old_cdclk_state;
@@ -3933,3 +4056,75 @@ void intel_cdclk_read_hw(struct intel_display *display)
 	cdclk_state->actual = display->cdclk.hw;
 	cdclk_state->logical = display->cdclk.hw;
 }
+
+static int calc_cdclk(const struct intel_crtc_state *crtc_state, int min_cdclk)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (DISPLAY_VER(display) >= 10 || display->platform.broxton) {
+		return bxt_calc_cdclk(display, min_cdclk);
+	} else if (DISPLAY_VER(display) == 9) {
+		int vco;
+
+		vco = display->cdclk.skl_preferred_vco_freq;
+		if (vco == 0)
+			vco = 8100000;
+
+		return skl_calc_cdclk(min_cdclk, vco);
+	} else if (display->platform.broadwell) {
+		return bdw_calc_cdclk(min_cdclk);
+	} else if (display->platform.cherryview || display->platform.valleyview) {
+		return vlv_calc_cdclk(display, min_cdclk);
+	} else {
+		return display->cdclk.max_cdclk_freq;
+	}
+}
+
+static unsigned int _intel_cdclk_prefill_adj(const struct intel_crtc_state *crtc_state,
+					     int clock, int min_cdclk)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int ppc = intel_cdclk_ppc(display, crtc_state->double_wide);
+	int cdclk = calc_cdclk(crtc_state, min_cdclk);
+
+	return min(0x10000, DIV_ROUND_UP_ULL((u64)clock << 16, ppc * cdclk));
+}
+
+unsigned int intel_cdclk_prefill_adjustment(const struct intel_crtc_state *crtc_state)
+{
+	/* FIXME use the actual min_cdclk for the pipe here */
+	return intel_cdclk_prefill_adjustment_worst(crtc_state);
+}
+
+unsigned int intel_cdclk_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state)
+{
+	int clock = crtc_state->hw.pipe_mode.crtc_clock;
+	int min_cdclk;
+
+	/*
+	 * FIXME could perhaps consider a few more of the factors
+	 * that go the per-crtc min_cdclk. Namely anything that
+	 * only changes during full modesets.
+	 *
+	 * FIXME this assumes 1:1 scaling, but the other _worst() stuff
+	 * assumes max downscaling, so the final result will be
+	 * unrealistically bad. Figure out where the actual maximum value
+	 * lies and use that to compute a more realistic worst case
+	 * estimate...
+	 */
+	min_cdclk = _intel_pixel_rate_to_cdclk(crtc_state, clock);
+
+	return _intel_cdclk_prefill_adj(crtc_state, clock, min_cdclk);
+}
+
+int intel_cdclk_min_cdclk_for_prefill(const struct intel_crtc_state *crtc_state,
+				      unsigned int prefill_lines_unadjusted,
+				      unsigned int prefill_lines_available)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+	int ppc = intel_cdclk_ppc(display, crtc_state->double_wide);
+
+	return DIV_ROUND_UP_ULL(mul_u32_u32(pipe_mode->crtc_clock, prefill_lines_unadjusted),
+				ppc * prefill_lines_available);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.h b/drivers/gpu/drm/i915/display/intel_cdclk.h
index cacee598af0e..1ff7d078b42c 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.h
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.h
@@ -38,16 +38,17 @@ void intel_set_cdclk_post_plane_update(struct intel_atomic_state *state);
 void intel_cdclk_dump_config(struct intel_display *display,
 			     const struct intel_cdclk_config *cdclk_config,
 			     const char *context);
-int intel_modeset_calc_cdclk(struct intel_atomic_state *state);
 void intel_cdclk_get_cdclk(struct intel_display *display,
 			   struct intel_cdclk_config *cdclk_config);
-int intel_cdclk_atomic_check(struct intel_atomic_state *state,
-			     bool *need_cdclk_calc);
+int intel_cdclk_atomic_check(struct intel_atomic_state *state);
 int intel_cdclk_state_set_joined_mbus(struct intel_atomic_state *state, bool joined_mbus);
 struct intel_cdclk_state *
 intel_atomic_get_cdclk_state(struct intel_atomic_state *state);
 void intel_cdclk_update_hw_state(struct intel_display *display);
 void intel_cdclk_crtc_disable_noatomic(struct intel_crtc *crtc);
+int intel_cdclk_update_dbuf_bw_min_cdclk(struct intel_atomic_state *state,
+					 int old_min_cdclk, int new_min_cdclk,
+					 bool *need_cdclk_calc);
 
 #define to_intel_cdclk_state(global_state) \
 	container_of_const((global_state), struct intel_cdclk_state, base)
@@ -64,9 +65,16 @@ int intel_cdclk_logical(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_actual(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_actual_voltage_level(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe pipe);
-int intel_cdclk_bw_min_cdclk(const struct intel_cdclk_state *cdclk_state);
 bool intel_cdclk_pmdemand_needs_update(struct intel_atomic_state *state);
 void intel_cdclk_force_min_cdclk(struct intel_cdclk_state *cdclk_state, int force_min_cdclk);
 void intel_cdclk_read_hw(struct intel_display *display);
 
+unsigned int intel_cdclk_prefill_adjustment(const struct intel_crtc_state *crtc_state);
+unsigned int intel_cdclk_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state);
+int intel_cdclk_min_cdclk_for_prefill(const struct intel_crtc_state *crtc_state,
+				      unsigned int prefill_lines_unadjusted,
+				      unsigned int prefill_lines_available);
+
+int intel_crtc_min_cdclk(const struct intel_crtc_state *crtc_state);
+
 #endif /* __INTEL_CDCLK_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 671db6926e4c..1e97020e7304 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -24,12 +24,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "i9xx_plane_regs.h"
 #include "intel_color.h"
 #include "intel_color_regs.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dsb.h"
 #include "intel_vrr.h"
 
@@ -2013,7 +2013,7 @@ void intel_color_prepare_commit(struct intel_atomic_state *state,
 
 	if (crtc_state->use_dsb && intel_color_uses_chained_dsb(crtc_state)) {
 		intel_vrr_send_push(crtc_state->dsb_color, crtc_state);
-		intel_dsb_wait_vblank_delay(state, crtc_state->dsb_color);
+		intel_dsb_wait_for_delayed_vblank(state, crtc_state->dsb_color);
 		intel_vrr_check_push_sent(crtc_state->dsb_color, crtc_state);
 		intel_dsb_interrupt(crtc_state->dsb_color);
 	}
diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c
index 112749f97c26..f401558ac14e 100644
--- a/drivers/gpu/drm/i915/display/intel_combo_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c
@@ -5,12 +5,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_combo_phy.h"
 #include "intel_combo_phy_regs.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 
 #define for_each_combo_phy(__display, __phy) \
 	for ((__phy) = PHY_A; (__phy) < I915_MAX_PHYS; (__phy)++)	\
diff --git a/drivers/gpu/drm/i915/display/intel_connector.c b/drivers/gpu/drm/i915/display/intel_connector.c
index 6a55854db5b6..647e6e1f8c68 100644
--- a/drivers/gpu/drm/i915/display/intel_connector.c
+++ b/drivers/gpu/drm/i915/display/intel_connector.c
@@ -31,7 +31,7 @@
 #include <drm/drm_probe_helper.h>
 
 #include "i915_drv.h"
-#include "i915_utils.h"
+#include "i915_utils.h" /* for i915_inject_probe_failure() */
 #include "intel_connector.h"
 #include "intel_display_core.h"
 #include "intel_display_debugfs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index a187db6df2d3..802ae5aaece1 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -84,8 +84,13 @@ u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc)
 	if (!crtc->active)
 		return 0;
 
-	if (!vblank->max_vblank_count)
-		return (u32)drm_crtc_accurate_vblank_count(&crtc->base);
+	if (!vblank->max_vblank_count) {
+		/* On preempt-rt we cannot take the vblank spinlock since this function is called from tracepoints */
+		if (IS_ENABLED(CONFIG_PREEMPT_RT))
+			return (u32)drm_crtc_vblank_count(&crtc->base);
+		else
+			return (u32)drm_crtc_accurate_vblank_count(&crtc->base);
+	}
 
 	return crtc->base.funcs->get_vblank_counter(&crtc->base);
 }
@@ -390,6 +395,9 @@ int intel_crtc_init(struct intel_display *display, enum pipe pipe)
 
 	drm_WARN_ON(display->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
 
+	if (HAS_CASF(display))
+		drm_crtc_create_sharpness_strength_property(&crtc->base);
+
 	return 0;
 
 fail:
@@ -748,3 +756,89 @@ void intel_pipe_update_end(struct intel_atomic_state *state,
 out:
 	intel_psr_unlock(new_crtc_state);
 }
+
+bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state)
+{
+	return old_crtc_state->hw.enable != new_crtc_state->hw.enable;
+}
+
+bool intel_any_crtc_enable_changed(struct intel_atomic_state *state)
+{
+	const struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		if (intel_crtc_enable_changed(old_crtc_state, new_crtc_state))
+			return true;
+	}
+
+	return false;
+}
+
+bool intel_crtc_active_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state)
+{
+	return old_crtc_state->hw.active != new_crtc_state->hw.active;
+}
+
+bool intel_any_crtc_active_changed(struct intel_atomic_state *state)
+{
+	const struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		if (intel_crtc_active_changed(old_crtc_state, new_crtc_state))
+			return true;
+	}
+
+	return false;
+}
+
+unsigned int intel_crtc_bw_num_active_planes(const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * We assume cursors are small enough
+	 * to not cause bandwidth problems.
+	 */
+	return hweight8(crtc_state->active_planes & ~BIT(PLANE_CURSOR));
+}
+
+unsigned int intel_crtc_bw_data_rate(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	unsigned int data_rate = 0;
+	enum plane_id plane_id;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		/*
+		 * We assume cursors are small enough
+		 * to not cause bandwidth problems.
+		 */
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		data_rate += crtc_state->data_rate[plane_id];
+
+		if (DISPLAY_VER(display) < 11)
+			data_rate += crtc_state->data_rate_y[plane_id];
+	}
+
+	return data_rate;
+}
+
+/* "Maximum Pipe Read Bandwidth" */
+int intel_crtc_bw_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (DISPLAY_VER(display) < 12)
+		return 0;
+
+	return DIV_ROUND_UP_ULL(mul_u32_u32(intel_crtc_bw_data_rate(crtc_state), 10), 512);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.h b/drivers/gpu/drm/i915/display/intel_crtc.h
index 8c14ff8b391e..07917e8a9ae3 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.h
+++ b/drivers/gpu/drm/i915/display/intel_crtc.h
@@ -58,4 +58,15 @@ void intel_wait_for_vblank_if_active(struct intel_display *display,
 				     enum pipe pipe);
 void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc);
 
+bool intel_any_crtc_enable_changed(struct intel_atomic_state *state);
+bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state);
+bool intel_any_crtc_active_changed(struct intel_atomic_state *state);
+bool intel_crtc_active_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state);
+
+unsigned int intel_crtc_bw_num_active_planes(const struct intel_crtc_state *crtc_state);
+unsigned int intel_crtc_bw_data_rate(const struct intel_crtc_state *crtc_state);
+int intel_crtc_bw_min_cdclk(const struct intel_crtc_state *crtc_state);
+
 #endif
diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
index 0c7f91046996..c2a6217c2262 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
@@ -289,10 +289,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 	drm_printf(&p, "scanline offset: %d\n",
 		   intel_crtc_scanline_offset(pipe_config));
 
-	drm_printf(&p, "vblank delay: %d, framestart delay: %d, MSA timing delay: %d\n",
-		   pipe_config->hw.adjusted_mode.crtc_vblank_start -
-		   pipe_config->hw.adjusted_mode.crtc_vdisplay,
-		   pipe_config->framestart_delay, pipe_config->msa_timing_delay);
+	drm_printf(&p, "framestart delay: %d, MSA timing delay: %d, set context latency: %d\n",
+		   pipe_config->framestart_delay, pipe_config->msa_timing_delay,
+		   pipe_config->set_context_latency);
 
 	drm_printf(&p, "vrr: %s, fixed rr: %s, vmin: %d, vmax: %d, flipline: %d, pipeline full: %d, guardband: %d vsync start: %d, vsync end: %d\n",
 		   str_yes_no(pipe_config->vrr.enable),
@@ -313,9 +312,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 	drm_printf(&p, "pipe mode: " DRM_MODE_FMT "\n",
 		   DRM_MODE_ARG(&pipe_config->hw.pipe_mode));
 	intel_dump_crtc_timings(&p, &pipe_config->hw.pipe_mode);
-	drm_printf(&p, "port clock: %d, pipe src: " DRM_RECT_FMT ", pixel rate %d\n",
+	drm_printf(&p, "port clock: %d, pipe src: " DRM_RECT_FMT ", pixel rate %d, min cdclk %d\n",
 		   pipe_config->port_clock, DRM_RECT_ARG(&pipe_config->pipe_src),
-		   pipe_config->pixel_rate);
+		   pipe_config->pixel_rate, pipe_config->min_cdclk);
 
 	drm_printf(&p, "linetime: %d, ips linetime: %d\n",
 		   pipe_config->linetime, pipe_config->ips_linetime);
@@ -373,6 +372,11 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 
 	intel_vdsc_state_dump(&p, 0, pipe_config);
 
+	drm_printf(&p, "sharpness strength: %d, sharpness tap size: %d, sharpness enable: %d\n",
+		   pipe_config->hw.casf_params.strength,
+		   pipe_config->hw.casf_params.win_size,
+		   pipe_config->hw.casf_params.casf_enable);
+
 dump_planes:
 	if (!state)
 		return;
diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c
index d4d181f9dca5..7aa14348aa6d 100644
--- a/drivers/gpu/drm/i915/display/intel_cursor.c
+++ b/drivers/gpu/drm/i915/display/intel_cursor.c
@@ -12,13 +12,13 @@
 #include <drm/drm_print.h>
 #include <drm/drm_vblank.h>
 
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_cursor.h"
 #include "intel_cursor_regs.h"
 #include "intel_de.h"
 #include "intel_display.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_fb.h"
 #include "intel_fb_pin.h"
 #include "intel_frontbuffer.h"
@@ -662,7 +662,7 @@ static void i9xx_cursor_update_arm(struct intel_dsb *dsb,
 		cntl = plane_state->ctl |
 			i9xx_cursor_ctl_crtc(crtc_state);
 
-		if (width != height)
+		if (DISPLAY_VER(display) < 14 && width != height)
 			fbc_ctl = CUR_FBC_EN | CUR_FBC_HEIGHT(height - 1);
 
 		base = plane_state->surf;
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index 801235a5bc0a..b3b506d0e040 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -8,7 +8,6 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_alpm.h"
 #include "intel_cx0_phy.h"
 #include "intel_cx0_phy_regs.h"
@@ -16,16 +15,15 @@
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_hdmi.h"
+#include "intel_lt_phy.h"
 #include "intel_panel.h"
 #include "intel_psr.h"
 #include "intel_snps_hdmi_pll.h"
 #include "intel_tc.h"
 
-#define MB_WRITE_COMMITTED      true
-#define MB_WRITE_UNCOMMITTED    false
-
 #define for_each_cx0_lane_in_mask(__lane_mask, __lane) \
 	for ((__lane) = 0; (__lane) < 2; (__lane)++) \
 		for_each_if((__lane_mask) & BIT(__lane))
@@ -39,14 +37,12 @@ bool intel_encoder_is_c10phy(struct intel_encoder *encoder)
 	struct intel_display *display = to_intel_display(encoder);
 	enum phy phy = intel_encoder_to_phy(encoder);
 
-	/* PTL doesn't have a PHY connected to PORT B; as such,
-	 * there will never be a case where PTL uses PHY B.
-	 * WCL uses PORT A and B with the C10 PHY.
-	 * Reusing the condition for WCL and extending it for PORT B
-	 * should not cause any issues for PTL.
-	 */
-	if (display->platform.pantherlake && phy < PHY_C)
-		return true;
+	if (display->platform.pantherlake) {
+		if (display->platform.pantherlake_wildcatlake)
+			return phy <= PHY_B;
+		else
+			return phy == PHY_A;
+	}
 
 	if ((display->platform.lunarlake || display->platform.meteorlake) && phy < PHY_C)
 		return true;
@@ -130,8 +126,8 @@ static void intel_cx0_phy_transaction_end(struct intel_encoder *encoder, intel_w
 	intel_display_power_put(display, POWER_DOMAIN_DC_OFF, wakeref);
 }
 
-static void intel_clear_response_ready_flag(struct intel_encoder *encoder,
-					    int lane)
+void intel_clear_response_ready_flag(struct intel_encoder *encoder,
+				     int lane)
 {
 	struct intel_display *display = to_intel_display(encoder);
 
@@ -140,7 +136,7 @@ static void intel_clear_response_ready_flag(struct intel_encoder *encoder,
 		     0, XELPDP_PORT_P2M_RESPONSE_READY | XELPDP_PORT_P2M_ERROR_SET);
 }
 
-static void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane)
+void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
@@ -161,8 +157,8 @@ static void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane)
 	intel_clear_response_ready_flag(encoder, lane);
 }
 
-static int intel_cx0_wait_for_ack(struct intel_encoder *encoder,
-				  int command, int lane, u32 *val)
+int intel_cx0_wait_for_ack(struct intel_encoder *encoder,
+			   int command, int lane, u32 *val)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
@@ -273,8 +269,7 @@ static u8 __intel_cx0_read(struct intel_encoder *encoder,
 	return 0;
 }
 
-static u8 intel_cx0_read(struct intel_encoder *encoder,
-			 u8 lane_mask, u16 addr)
+u8 intel_cx0_read(struct intel_encoder *encoder, u8 lane_mask, u16 addr)
 {
 	int lane = lane_mask_to_lane(lane_mask);
 
@@ -361,8 +356,8 @@ static void __intel_cx0_write(struct intel_encoder *encoder,
 		     "PHY %c Write %04x failed after %d retries.\n", phy_name(phy), addr, i);
 }
 
-static void intel_cx0_write(struct intel_encoder *encoder,
-			    u8 lane_mask, u16 addr, u8 data, bool committed)
+void intel_cx0_write(struct intel_encoder *encoder,
+		     u8 lane_mask, u16 addr, u8 data, bool committed)
 {
 	int lane;
 
@@ -414,8 +409,8 @@ static void __intel_cx0_rmw(struct intel_encoder *encoder,
 		__intel_cx0_write(encoder, lane, addr, val, committed);
 }
 
-static void intel_cx0_rmw(struct intel_encoder *encoder,
-			  u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed)
+void intel_cx0_rmw(struct intel_encoder *encoder,
+		   u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed)
 {
 	u8 lane;
 
@@ -2105,6 +2100,9 @@ static int intel_c10pll_calc_state(struct intel_crtc_state *crtc_state,
 	return 0;
 }
 
+static int intel_c10pll_calc_port_clock(struct intel_encoder *encoder,
+					const struct intel_c10pll_state *pll_state);
+
 static void intel_c10pll_readout_hw_state(struct intel_encoder *encoder,
 					  struct intel_c10pll_state *pll_state)
 {
@@ -2129,6 +2127,8 @@ static void intel_c10pll_readout_hw_state(struct intel_encoder *encoder,
 	pll_state->tx = intel_cx0_read(encoder, lane, PHY_C10_VDR_TX(0));
 
 	intel_cx0_phy_transaction_end(encoder, wakeref);
+
+	pll_state->clock = intel_c10pll_calc_port_clock(encoder, pll_state);
 }
 
 static void intel_c10_pll_program(struct intel_display *display,
@@ -2587,20 +2587,6 @@ static bool is_dp2(u32 clock)
 	return false;
 }
 
-static bool is_hdmi_frl(u32 clock)
-{
-	switch (clock) {
-	case 300000: /* 3 Gbps */
-	case 600000: /* 6 Gbps */
-	case 800000: /* 8 Gbps */
-	case 1000000: /* 10 Gbps */
-	case 1200000: /* 12 Gbps */
-		return true;
-	default:
-		return false;
-	}
-}
-
 static bool intel_c20_protocol_switch_valid(struct intel_encoder *encoder)
 {
 	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
@@ -2614,7 +2600,7 @@ static int intel_get_c20_custom_width(u32 clock, bool dp)
 {
 	if (dp && is_dp2(clock))
 		return 2;
-	else if (is_hdmi_frl(clock))
+	else if (intel_hdmi_is_frl(clock))
 		return 1;
 	else
 		return 0;
@@ -2626,11 +2612,13 @@ static void intel_c20_pll_program(struct intel_display *display,
 				  bool is_dp, int port_clock)
 {
 	u8 owned_lane_mask = intel_cx0_get_owned_lane_mask(encoder);
+	u8 serdes;
 	bool cntx;
 	int i;
 
 	/* 1. Read current context selection */
-	cntx = intel_cx0_read(encoder, INTEL_CX0_LANE0, PHY_C20_VDR_CUSTOM_SERDES_RATE) & BIT(0);
+	cntx = intel_cx0_read(encoder, INTEL_CX0_LANE0, PHY_C20_VDR_CUSTOM_SERDES_RATE) &
+		PHY_C20_CONTEXT_TOGGLE;
 
 	/*
 	 * 2. If there is a protocol switch from HDMI to DP or vice versa, clear
@@ -2700,28 +2688,31 @@ static void intel_c20_pll_program(struct intel_display *display,
 		      MB_WRITE_COMMITTED);
 
 	/* 5. For DP or 6. For HDMI */
-	if (is_dp) {
-		intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
-			      BIT(6) | PHY_C20_CUSTOM_SERDES_MASK,
-			      BIT(6) | PHY_C20_CUSTOM_SERDES(intel_c20_get_dp_rate(port_clock)),
-			      MB_WRITE_COMMITTED);
-	} else {
-		intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
-			      BIT(7) | PHY_C20_CUSTOM_SERDES_MASK,
-			      is_hdmi_frl(port_clock) ? BIT(7) : 0,
-			      MB_WRITE_COMMITTED);
+	serdes = 0;
+	if (is_dp)
+		serdes = PHY_C20_IS_DP |
+			 PHY_C20_DP_RATE(intel_c20_get_dp_rate(port_clock));
+	else if (intel_hdmi_is_frl(port_clock))
+		serdes = PHY_C20_IS_HDMI_FRL;
 
-		intel_cx0_write(encoder, INTEL_CX0_BOTH_LANES, PHY_C20_VDR_HDMI_RATE,
-				intel_c20_get_hdmi_rate(port_clock),
-				MB_WRITE_COMMITTED);
-	}
+	intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
+		      PHY_C20_IS_DP | PHY_C20_DP_RATE_MASK | PHY_C20_IS_HDMI_FRL,
+		      serdes,
+		      MB_WRITE_COMMITTED);
+
+	if (!is_dp)
+		intel_cx0_rmw(encoder, INTEL_CX0_BOTH_LANES, PHY_C20_VDR_HDMI_RATE,
+			      PHY_C20_HDMI_RATE_MASK,
+			      intel_c20_get_hdmi_rate(port_clock),
+			      MB_WRITE_COMMITTED);
 
 	/*
 	 * 7. Write Vendor specific registers to toggle context setting to load
 	 * the updated programming toggle context bit
 	 */
 	intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
-		      BIT(0), cntx ? 0 : 1, MB_WRITE_COMMITTED);
+		      PHY_C20_CONTEXT_TOGGLE, cntx ? 0 : PHY_C20_CONTEXT_TOGGLE,
+		      MB_WRITE_COMMITTED);
 }
 
 static int intel_c10pll_calc_port_clock(struct intel_encoder *encoder,
@@ -2768,7 +2759,7 @@ static void intel_program_port_clock_ctl(struct intel_encoder *encoder,
 
 	val |= XELPDP_FORWARD_CLOCK_UNGATE;
 
-	if (!is_dp && is_hdmi_frl(port_clock))
+	if (!is_dp && intel_hdmi_is_frl(port_clock))
 		val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_DIV18CLK);
 	else
 		val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_MAXPCLK);
@@ -2808,8 +2799,8 @@ static u32 intel_cx0_get_powerdown_state(u8 lane_mask, u8 state)
 	return val;
 }
 
-static void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
-						u8 lane_mask, u8 state)
+void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
+					 u8 lane_mask, u8 state)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
@@ -2839,24 +2830,24 @@ static void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
 	/* Update Timeout Value */
 	if (intel_de_wait_custom(display, buf_ctl2_reg,
 				 intel_cx0_get_powerdown_update(lane_mask), 0,
-				 XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US, 0, NULL))
+				 XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US, 2, NULL))
 		drm_warn(display->drm,
 			 "PHY %c failed to bring out of Lane reset after %dus.\n",
 			 phy_name(phy), XELPDP_PORT_RESET_START_TIMEOUT_US);
 }
 
-static void intel_cx0_setup_powerdown(struct intel_encoder *encoder)
+void intel_cx0_setup_powerdown(struct intel_encoder *encoder)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
 
 	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
 		     XELPDP_POWER_STATE_READY_MASK,
-		     XELPDP_POWER_STATE_READY(CX0_P2_STATE_READY));
+		     XELPDP_POWER_STATE_READY(XELPDP_P2_STATE_READY));
 	intel_de_rmw(display, XELPDP_PORT_BUF_CTL3(display, port),
 		     XELPDP_POWER_STATE_ACTIVE_MASK |
 		     XELPDP_PLL_LANE_STAGGERING_DELAY_MASK,
-		     XELPDP_POWER_STATE_ACTIVE(CX0_P0_STATE_ACTIVE) |
+		     XELPDP_POWER_STATE_ACTIVE(XELPDP_P0_STATE_ACTIVE) |
 		     XELPDP_PLL_LANE_STAGGERING_DELAY(0));
 }
 
@@ -2929,7 +2920,7 @@ static void intel_cx0_phy_lane_reset(struct intel_encoder *encoder,
 			 phy_name(phy), XELPDP_REFCLK_ENABLE_TIMEOUT_US);
 
 	intel_cx0_powerdown_change_sequence(encoder, INTEL_CX0_BOTH_LANES,
-					    CX0_P2_STATE_RESET);
+					    XELPDP_P2_STATE_RESET);
 	intel_cx0_setup_powerdown(encoder);
 
 	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port), lane_pipe_reset, 0);
@@ -3034,7 +3025,7 @@ static void __intel_cx0pll_enable(struct intel_encoder *encoder,
 	 * TODO: For DP alt mode use only one lane.
 	 */
 	intel_cx0_powerdown_change_sequence(encoder, INTEL_CX0_BOTH_LANES,
-					    CX0_P2_STATE_READY);
+					    XELPDP_P2_STATE_READY);
 
 	/*
 	 * 4. Program PORT_MSGBUS_TIMER register's Message Bus Timer field to 0xA000.
@@ -3160,8 +3151,8 @@ static int intel_mtl_tbt_clock_select(struct intel_display *display,
 	}
 }
 
-static void intel_mtl_tbt_pll_enable(struct intel_encoder *encoder,
-				     const struct intel_crtc_state *crtc_state)
+void intel_mtl_tbt_pll_enable(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum phy phy = intel_encoder_to_phy(encoder);
@@ -3275,13 +3266,13 @@ static u8 cx0_power_control_disable_val(struct intel_encoder *encoder)
 	struct intel_display *display = to_intel_display(encoder);
 
 	if (intel_encoder_is_c10phy(encoder))
-		return CX0_P2PG_STATE_DISABLE;
+		return XELPDP_P2PG_STATE_DISABLE;
 
 	if ((display->platform.battlemage && encoder->port == PORT_A) ||
 	    (DISPLAY_VER(display) >= 30 && encoder->type == INTEL_OUTPUT_EDP))
-		return CX0_P2PG_STATE_DISABLE;
+		return XELPDP_P2PG_STATE_DISABLE;
 
-	return CX0_P4PG_STATE_DISABLE;
+	return XELPDP_P4PG_STATE_DISABLE;
 }
 
 static void intel_cx0pll_disable(struct intel_encoder *encoder)
@@ -3345,7 +3336,7 @@ static bool intel_cx0_pll_is_enabled(struct intel_encoder *encoder)
 			     intel_cx0_get_pclk_pll_request(lane);
 }
 
-static void intel_mtl_tbt_pll_disable(struct intel_encoder *encoder)
+void intel_mtl_tbt_pll_disable(struct intel_encoder *encoder)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum phy phy = intel_encoder_to_phy(encoder);
@@ -3584,7 +3575,7 @@ void intel_cx0pll_state_verify(struct intel_atomic_state *state,
 	struct intel_encoder *encoder;
 	struct intel_cx0pll_state mpll_hw_state = {};
 
-	if (DISPLAY_VER(display) < 14)
+	if (!IS_DISPLAY_VER(display, 14, 30))
 		return;
 
 	if (!new_crtc_state->hw.active)
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.h b/drivers/gpu/drm/i915/display/intel_cx0_phy.h
index c5a7b529955b..84d334b865f7 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.h
@@ -8,6 +8,9 @@
 
 #include <linux/types.h>
 
+#define MB_WRITE_COMMITTED      true
+#define MB_WRITE_UNCOMMITTED    false
+
 enum icl_port_dpll_id;
 struct intel_atomic_state;
 struct intel_c10pll_state;
@@ -19,6 +22,8 @@ struct intel_display;
 struct intel_encoder;
 struct intel_hdmi;
 
+void intel_clear_response_ready_flag(struct intel_encoder *encoder,
+				     int lane);
 bool intel_encoder_is_c10phy(struct intel_encoder *encoder);
 void intel_mtl_pll_enable(struct intel_encoder *encoder,
 			  const struct intel_crtc_state *crtc_state);
@@ -41,9 +46,25 @@ bool intel_cx0pll_compare_hw_state(const struct intel_cx0pll_state *a,
 				   const struct intel_cx0pll_state *b);
 void intel_cx0_phy_set_signal_levels(struct intel_encoder *encoder,
 				     const struct intel_crtc_state *crtc_state);
+void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
+					 u8 lane_mask, u8 state);
+int intel_cx0_phy_check_hdmi_link_rate(struct intel_hdmi *hdmi, int clock);
+void intel_cx0_setup_powerdown(struct intel_encoder *encoder);
+bool intel_cx0_is_hdmi_frl(u32 clock);
+u8 intel_cx0_read(struct intel_encoder *encoder, u8 lane_mask, u16 addr);
+void intel_cx0_rmw(struct intel_encoder *encoder,
+		   u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed);
+void intel_cx0_write(struct intel_encoder *encoder,
+		     u8 lane_mask, u16 addr, u8 data, bool committed);
+int intel_cx0_wait_for_ack(struct intel_encoder *encoder,
+			   int command, int lane, u32 *val);
+void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane);
 int intel_mtl_tbt_calc_port_clock(struct intel_encoder *encoder);
 void intel_cx0_pll_power_save_wa(struct intel_display *display);
 void intel_lnl_mac_transmit_lfps(struct intel_encoder *encoder,
 				 const struct intel_crtc_state *crtc_state);
+void intel_mtl_tbt_pll_enable(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state);
+void intel_mtl_tbt_pll_disable(struct intel_encoder *encoder);
 
 #endif /* __INTEL_CX0_PHY_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
index 77eae1d845f7..635b35669348 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
@@ -50,6 +50,7 @@
 #define   XELPDP_PORT_M2P_COMMAND_WRITE_UNCOMMITTED	REG_FIELD_PREP(XELPDP_PORT_M2P_COMMAND_TYPE_MASK, 0x1)
 #define   XELPDP_PORT_M2P_COMMAND_WRITE_COMMITTED	REG_FIELD_PREP(XELPDP_PORT_M2P_COMMAND_TYPE_MASK, 0x2)
 #define   XELPDP_PORT_M2P_COMMAND_READ			REG_FIELD_PREP(XELPDP_PORT_M2P_COMMAND_TYPE_MASK, 0x3)
+#define   XELPDP_PORT_P2P_TRANSACTION_PENDING		REG_BIT(24)
 #define   XELPDP_PORT_M2P_DATA_MASK			REG_GENMASK(23, 16)
 #define   XELPDP_PORT_M2P_DATA(val)			REG_FIELD_PREP(XELPDP_PORT_M2P_DATA_MASK, val)
 #define   XELPDP_PORT_M2P_TRANSACTION_RESET		REG_BIT(15)
@@ -104,6 +105,8 @@
 #define   XELPDP_PORT_BUF_PORT_DATA_20BIT		REG_FIELD_PREP(XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK, 1)
 #define   XELPDP_PORT_BUF_PORT_DATA_40BIT		REG_FIELD_PREP(XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK, 2)
 #define   XELPDP_PORT_REVERSAL				REG_BIT(16)
+#define   XE3PLPDP_PHY_MODE_MASK			REG_GENMASK(15, 12)
+#define   XE3PLPDP_PHY_MODE_DP				REG_FIELD_PREP(XE3PLPDP_PHY_MODE_MASK, 0x3)
 #define   XELPDP_PORT_BUF_IO_SELECT_TBT			REG_BIT(11)
 #define   XELPDP_PORT_BUF_PHY_IDLE			REG_BIT(7)
 #define   XELPDP_TC_PHY_OWNERSHIP			REG_BIT(6)
@@ -124,6 +127,7 @@
 	 _XELPDP_PORT_BUF_CTL2(port))
 #define   XELPDP_LANE_PIPE_RESET(lane)			_PICK(lane, REG_BIT(31), REG_BIT(30))
 #define   XELPDP_LANE_PHY_CURRENT_STATUS(lane)		_PICK(lane, REG_BIT(29), REG_BIT(28))
+#define   XE3PLPDP_LANE_PHY_PULSE_STATUS(lane)		_PICK(lane, REG_BIT(27), REG_BIT(26))
 #define   XELPDP_LANE_POWERDOWN_UPDATE(lane)		_PICK(lane, REG_BIT(25), REG_BIT(24))
 #define   _XELPDP_LANE0_POWERDOWN_NEW_STATE_MASK	REG_GENMASK(23, 20)
 #define   _XELPDP_LANE0_POWERDOWN_NEW_STATE(val)	REG_FIELD_PREP(_XELPDP_LANE0_POWERDOWN_NEW_STATE_MASK, val)
@@ -149,11 +153,12 @@
 #define   XELPDP_PLL_LANE_STAGGERING_DELAY(val)		REG_FIELD_PREP(XELPDP_PLL_LANE_STAGGERING_DELAY_MASK, val)
 #define   XELPDP_POWER_STATE_ACTIVE_MASK		REG_GENMASK(3, 0)
 #define   XELPDP_POWER_STATE_ACTIVE(val)		REG_FIELD_PREP(XELPDP_POWER_STATE_ACTIVE_MASK, val)
-#define   CX0_P0_STATE_ACTIVE				0x0
-#define   CX0_P2_STATE_READY				0x2
-#define   CX0_P2PG_STATE_DISABLE			0x9
-#define   CX0_P4PG_STATE_DISABLE			0xC
-#define   CX0_P2_STATE_RESET				0x2
+#define   XELPDP_P0_STATE_ACTIVE			0x0
+#define   XELPDP_P2_STATE_READY				0x2
+#define   XE3PLPD_P4_STATE_DISABLE			0x4
+#define   XELPDP_P2PG_STATE_DISABLE			0x9
+#define   XELPDP_P4PG_STATE_DISABLE			0xC
+#define   XELPDP_P2_STATE_RESET				0x2
 
 #define _XELPDP_PORT_MSGBUS_TIMER_LN0_A			0x640d8
 #define _XELPDP_PORT_MSGBUS_TIMER_LN0_B			0x641d8
@@ -298,10 +303,14 @@
 #define PHY_C20_RD_DATA_L		0xC08
 #define PHY_C20_RD_DATA_H		0xC09
 #define PHY_C20_VDR_CUSTOM_SERDES_RATE	0xD00
-#define PHY_C20_VDR_HDMI_RATE		0xD01
+#define   PHY_C20_IS_HDMI_FRL		REG_BIT8(7)
+#define   PHY_C20_IS_DP			REG_BIT8(6)
+#define   PHY_C20_DP_RATE_MASK		REG_GENMASK8(4, 1)
+#define   PHY_C20_DP_RATE(val)		REG_FIELD_PREP8(PHY_C20_DP_RATE_MASK, val)
 #define   PHY_C20_CONTEXT_TOGGLE	REG_BIT8(0)
-#define   PHY_C20_CUSTOM_SERDES_MASK	REG_GENMASK8(4, 1)
-#define   PHY_C20_CUSTOM_SERDES(val)	REG_FIELD_PREP8(PHY_C20_CUSTOM_SERDES_MASK, val)
+#define PHY_C20_VDR_HDMI_RATE		0xD01
+#define   PHY_C20_HDMI_RATE_MASK	REG_GENMASK8(1, 0)
+#define   PHY_C20_HDMI_RATE(val)	REG_FIELD_PREP8(PHY_C20_HDMI_RATE_MASK, val)
 #define PHY_C20_VDR_CUSTOM_WIDTH	0xD02
 #define   PHY_C20_CUSTOM_WIDTH_MASK	REG_GENMASK(1, 0)
 #define   PHY_C20_CUSTOM_WIDTH(val)	REG_FIELD_PREP8(PHY_C20_CUSTOM_WIDTH_MASK, val)
diff --git a/drivers/gpu/drm/i915/display/intel_dbuf_bw.c b/drivers/gpu/drm/i915/display/intel_dbuf_bw.c
new file mode 100644
index 000000000000..8b8894c37f63
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dbuf_bw.c
@@ -0,0 +1,295 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#include <drm/drm_print.h>
+
+#include "intel_dbuf_bw.h"
+#include "intel_display_core.h"
+#include "intel_display_types.h"
+#include "skl_watermark.h"
+
+struct intel_dbuf_bw {
+	unsigned int max_bw[I915_MAX_DBUF_SLICES];
+	u8 active_planes[I915_MAX_DBUF_SLICES];
+};
+
+struct intel_dbuf_bw_state {
+	struct intel_global_state base;
+	struct intel_dbuf_bw dbuf_bw[I915_MAX_PIPES];
+};
+
+struct intel_dbuf_bw_state *to_intel_dbuf_bw_state(struct intel_global_state *obj_state)
+{
+	return container_of(obj_state, struct intel_dbuf_bw_state, base);
+}
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_old_dbuf_bw_state(struct intel_atomic_state *state)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_global_state *dbuf_bw_state;
+
+	dbuf_bw_state = intel_atomic_get_old_global_obj_state(state, &display->dbuf_bw.obj);
+
+	return to_intel_dbuf_bw_state(dbuf_bw_state);
+}
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_new_dbuf_bw_state(struct intel_atomic_state *state)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_global_state *dbuf_bw_state;
+
+	dbuf_bw_state = intel_atomic_get_new_global_obj_state(state, &display->dbuf_bw.obj);
+
+	return to_intel_dbuf_bw_state(dbuf_bw_state);
+}
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_dbuf_bw_state(struct intel_atomic_state *state)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_global_state *dbuf_bw_state;
+
+	dbuf_bw_state = intel_atomic_get_global_obj_state(state, &display->dbuf_bw.obj);
+	if (IS_ERR(dbuf_bw_state))
+		return ERR_CAST(dbuf_bw_state);
+
+	return to_intel_dbuf_bw_state(dbuf_bw_state);
+}
+
+static bool intel_dbuf_bw_changed(struct intel_display *display,
+				  const struct intel_dbuf_bw *old_dbuf_bw,
+				  const struct intel_dbuf_bw *new_dbuf_bw)
+{
+	enum dbuf_slice slice;
+
+	for_each_dbuf_slice(display, slice) {
+		if (old_dbuf_bw->max_bw[slice] != new_dbuf_bw->max_bw[slice] ||
+		    old_dbuf_bw->active_planes[slice] != new_dbuf_bw->active_planes[slice])
+			return true;
+	}
+
+	return false;
+}
+
+static bool intel_dbuf_bw_state_changed(struct intel_display *display,
+					const struct intel_dbuf_bw_state *old_dbuf_bw_state,
+					const struct intel_dbuf_bw_state *new_dbuf_bw_state)
+{
+	enum pipe pipe;
+
+	for_each_pipe(display, pipe) {
+		const struct intel_dbuf_bw *old_dbuf_bw =
+			&old_dbuf_bw_state->dbuf_bw[pipe];
+		const struct intel_dbuf_bw *new_dbuf_bw =
+			&new_dbuf_bw_state->dbuf_bw[pipe];
+
+		if (intel_dbuf_bw_changed(display, old_dbuf_bw, new_dbuf_bw))
+			return true;
+	}
+
+	return false;
+}
+
+static void skl_plane_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
+				   struct intel_crtc *crtc,
+				   enum plane_id plane_id,
+				   const struct skl_ddb_entry *ddb,
+				   unsigned int data_rate)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	unsigned int dbuf_mask = skl_ddb_dbuf_slice_mask(display, ddb);
+	enum dbuf_slice slice;
+
+	/*
+	 * The arbiter can only really guarantee an
+	 * equal share of the total bw to each plane.
+	 */
+	for_each_dbuf_slice_in_mask(display, slice, dbuf_mask) {
+		dbuf_bw->max_bw[slice] = max(dbuf_bw->max_bw[slice], data_rate);
+		dbuf_bw->active_planes[slice] |= BIT(plane_id);
+	}
+}
+
+static void skl_crtc_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
+				  const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	enum plane_id plane_id;
+
+	memset(dbuf_bw, 0, sizeof(*dbuf_bw));
+
+	if (!crtc_state->hw.active)
+		return;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		/*
+		 * We assume cursors are small enough
+		 * to not cause bandwidth problems.
+		 */
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
+				       &crtc_state->wm.skl.plane_ddb[plane_id],
+				       crtc_state->data_rate[plane_id]);
+
+		if (DISPLAY_VER(display) < 11)
+			skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
+					       &crtc_state->wm.skl.plane_ddb_y[plane_id],
+					       crtc_state->data_rate[plane_id]);
+	}
+}
+
+/* "Maximum Data Buffer Bandwidth" */
+int intel_dbuf_bw_min_cdclk(struct intel_display *display,
+			    const struct intel_dbuf_bw_state *dbuf_bw_state)
+{
+	unsigned int total_max_bw = 0;
+	enum dbuf_slice slice;
+
+	for_each_dbuf_slice(display, slice) {
+		int num_active_planes = 0;
+		unsigned int max_bw = 0;
+		enum pipe pipe;
+
+		/*
+		 * The arbiter can only really guarantee an
+		 * equal share of the total bw to each plane.
+		 */
+		for_each_pipe(display, pipe) {
+			const struct intel_dbuf_bw *dbuf_bw = &dbuf_bw_state->dbuf_bw[pipe];
+
+			max_bw = max(dbuf_bw->max_bw[slice], max_bw);
+			num_active_planes += hweight8(dbuf_bw->active_planes[slice]);
+		}
+		max_bw *= num_active_planes;
+
+		total_max_bw = max(total_max_bw, max_bw);
+	}
+
+	return DIV_ROUND_UP(total_max_bw, 64);
+}
+
+int intel_dbuf_bw_calc_min_cdclk(struct intel_atomic_state *state,
+				 bool *need_cdclk_calc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_dbuf_bw_state *new_dbuf_bw_state = NULL;
+	const struct intel_dbuf_bw_state *old_dbuf_bw_state = NULL;
+	const struct intel_crtc_state *old_crtc_state;
+	const struct intel_crtc_state *new_crtc_state;
+	struct intel_crtc *crtc;
+	int ret, i;
+
+	if (DISPLAY_VER(display) < 9)
+		return 0;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		struct intel_dbuf_bw old_dbuf_bw, new_dbuf_bw;
+
+		skl_crtc_calc_dbuf_bw(&old_dbuf_bw, old_crtc_state);
+		skl_crtc_calc_dbuf_bw(&new_dbuf_bw, new_crtc_state);
+
+		if (!intel_dbuf_bw_changed(display, &old_dbuf_bw, &new_dbuf_bw))
+			continue;
+
+		new_dbuf_bw_state = intel_atomic_get_dbuf_bw_state(state);
+		if (IS_ERR(new_dbuf_bw_state))
+			return PTR_ERR(new_dbuf_bw_state);
+
+		old_dbuf_bw_state = intel_atomic_get_old_dbuf_bw_state(state);
+
+		new_dbuf_bw_state->dbuf_bw[crtc->pipe] = new_dbuf_bw;
+	}
+
+	if (!old_dbuf_bw_state)
+		return 0;
+
+	if (intel_dbuf_bw_state_changed(display, old_dbuf_bw_state, new_dbuf_bw_state)) {
+		ret = intel_atomic_lock_global_state(&new_dbuf_bw_state->base);
+		if (ret)
+			return ret;
+	}
+
+	ret = intel_cdclk_update_dbuf_bw_min_cdclk(state,
+						   intel_dbuf_bw_min_cdclk(display, old_dbuf_bw_state),
+						   intel_dbuf_bw_min_cdclk(display, new_dbuf_bw_state),
+						   need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+void intel_dbuf_bw_update_hw_state(struct intel_display *display)
+{
+	struct intel_dbuf_bw_state *dbuf_bw_state =
+		to_intel_dbuf_bw_state(display->dbuf_bw.obj.state);
+	struct intel_crtc *crtc;
+
+	if (DISPLAY_VER(display) < 9)
+		return;
+
+	for_each_intel_crtc(display->drm, crtc) {
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		skl_crtc_calc_dbuf_bw(&dbuf_bw_state->dbuf_bw[crtc->pipe], crtc_state);
+	}
+}
+
+void intel_dbuf_bw_crtc_disable_noatomic(struct intel_crtc *crtc)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	struct intel_dbuf_bw_state *dbuf_bw_state =
+		to_intel_dbuf_bw_state(display->dbuf_bw.obj.state);
+	enum pipe pipe = crtc->pipe;
+
+	if (DISPLAY_VER(display) < 9)
+		return;
+
+	memset(&dbuf_bw_state->dbuf_bw[pipe], 0, sizeof(dbuf_bw_state->dbuf_bw[pipe]));
+}
+
+static struct intel_global_state *
+intel_dbuf_bw_duplicate_state(struct intel_global_obj *obj)
+{
+	struct intel_dbuf_bw_state *state;
+
+	state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+
+	return &state->base;
+}
+
+static void intel_dbuf_bw_destroy_state(struct intel_global_obj *obj,
+					struct intel_global_state *state)
+{
+	kfree(state);
+}
+
+static const struct intel_global_state_funcs intel_dbuf_bw_funcs = {
+	.atomic_duplicate_state = intel_dbuf_bw_duplicate_state,
+	.atomic_destroy_state = intel_dbuf_bw_destroy_state,
+};
+
+int intel_dbuf_bw_init(struct intel_display *display)
+{
+	struct intel_dbuf_bw_state *state;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	intel_atomic_global_obj_init(display, &display->dbuf_bw.obj,
+				     &state->base, &intel_dbuf_bw_funcs);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_dbuf_bw.h b/drivers/gpu/drm/i915/display/intel_dbuf_bw.h
new file mode 100644
index 000000000000..61875b9d5969
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dbuf_bw.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_DBUF_BW_H__
+#define __INTEL_DBUF_BW_H__
+
+#include <drm/drm_atomic.h>
+
+struct intel_atomic_state;
+struct intel_dbuf_bw_state;
+struct intel_crtc;
+struct intel_display;
+struct intel_global_state;
+
+struct intel_dbuf_bw_state *
+to_intel_dbuf_bw_state(struct intel_global_state *obj_state);
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_old_dbuf_bw_state(struct intel_atomic_state *state);
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_new_dbuf_bw_state(struct intel_atomic_state *state);
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_dbuf_bw_state(struct intel_atomic_state *state);
+
+int intel_dbuf_bw_init(struct intel_display *display);
+int intel_dbuf_bw_calc_min_cdclk(struct intel_atomic_state *state,
+				 bool *need_cdclk_calc);
+int intel_dbuf_bw_min_cdclk(struct intel_display *display,
+			    const struct intel_dbuf_bw_state *dbuf_bw_state);
+void intel_dbuf_bw_update_hw_state(struct intel_display *display);
+void intel_dbuf_bw_crtc_disable_noatomic(struct intel_crtc *crtc);
+
+#endif /* __INTEL_DBUF_BW_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index c09aa759f4d4..733ef4559131 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -35,7 +35,6 @@
 #include <drm/drm_privacy_screen_consumer.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "icl_dsi.h"
 #include "intel_alpm.h"
 #include "intel_audio.h"
@@ -53,6 +52,7 @@
 #include "intel_display_power.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dkl_phy.h"
 #include "intel_dkl_phy_regs.h"
 #include "intel_dp.h"
@@ -72,6 +72,7 @@
 #include "intel_hotplug.h"
 #include "intel_hti.h"
 #include "intel_lspcon.h"
+#include "intel_lt_phy.h"
 #include "intel_mg_phy_regs.h"
 #include "intel_modeset_lock.h"
 #include "intel_panel.h"
@@ -1466,10 +1467,15 @@ static int translate_signal_level(struct intel_dp *intel_dp,
 				  u8 signal_levels)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
+	const u8 *signal_array;
+	size_t array_size;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(index_to_dp_signal_levels); i++) {
-		if (index_to_dp_signal_levels[i] == signal_levels)
+	signal_array = index_to_dp_signal_levels;
+	array_size = ARRAY_SIZE(index_to_dp_signal_levels);
+
+	for (i = 0; i < array_size; i++) {
+		if (signal_array[i] == signal_levels)
 			return i;
 	}
 
@@ -4240,6 +4246,19 @@ void intel_ddi_get_clock(struct intel_encoder *encoder,
 						     &crtc_state->dpll_hw_state);
 }
 
+static void xe3plpd_ddi_get_config(struct intel_encoder *encoder,
+				   struct intel_crtc_state *crtc_state)
+{
+	intel_lt_phy_pll_readout_hw_state(encoder, crtc_state, &crtc_state->dpll_hw_state.ltpll);
+
+	if (crtc_state->dpll_hw_state.ltpll.tbt_mode)
+		crtc_state->port_clock = intel_mtl_tbt_calc_port_clock(encoder);
+	else
+		crtc_state->port_clock =
+			intel_lt_phy_calc_port_clock(encoder, crtc_state);
+	intel_ddi_get_config(encoder, crtc_state);
+}
+
 static void mtl_ddi_get_config(struct intel_encoder *encoder,
 			       struct intel_crtc_state *crtc_state)
 {
@@ -4559,6 +4578,13 @@ static int intel_ddi_compute_config_late(struct intel_encoder *encoder,
 	struct intel_display *display = to_intel_display(encoder);
 	struct drm_connector *connector = conn_state->connector;
 	u8 port_sync_transcoders = 0;
+	int ret = 0;
+
+	if (intel_crtc_has_dp_encoder(crtc_state))
+		ret = intel_dp_compute_config_late(encoder, crtc_state, conn_state);
+
+	if (ret)
+		return ret;
 
 	drm_dbg_kms(display->drm, "[ENCODER:%d:%s] [CRTC:%d:%s]\n",
 		    encoder->base.base.id, encoder->base.name,
@@ -5224,7 +5250,12 @@ void intel_ddi_init(struct intel_display *display,
 	encoder->cloneable = 0;
 	encoder->pipe_mask = ~0;
 
-	if (DISPLAY_VER(display) >= 14) {
+	if (HAS_LT_PHY(display)) {
+		encoder->enable_clock = intel_xe3plpd_pll_enable;
+		encoder->disable_clock = intel_xe3plpd_pll_disable;
+		encoder->port_pll_type = intel_mtl_port_pll_type;
+		encoder->get_config = xe3plpd_ddi_get_config;
+	} else if (DISPLAY_VER(display) >= 14) {
 		encoder->enable_clock = intel_mtl_pll_enable;
 		encoder->disable_clock = intel_mtl_pll_disable;
 		encoder->port_pll_type = intel_mtl_port_pll_type;
@@ -5289,7 +5320,9 @@ void intel_ddi_init(struct intel_display *display,
 		encoder->get_config = hsw_ddi_get_config;
 	}
 
-	if (DISPLAY_VER(display) >= 14) {
+	if (HAS_LT_PHY(display)) {
+		encoder->set_signal_levels = intel_lt_phy_set_signal_levels;
+	} else if (DISPLAY_VER(display) >= 14) {
 		encoder->set_signal_levels = intel_cx0_phy_set_signal_levels;
 	} else if (display->platform.dg2) {
 		encoder->set_signal_levels = intel_snps_phy_set_signal_levels;
diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
index a238be5bc455..395dba8c9e4d 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
@@ -3,13 +3,14 @@
  * Copyright © 2020 Intel Corporation
  */
 
-#include "i915_utils.h"
 #include "intel_cx0_phy.h"
 #include "intel_ddi.h"
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
+#include "intel_lt_phy.h"
 
 /* HDMI/DVI modes ignore everything but the last 2 items. So we share
  * them for both DP and FDI transports, allowing those ports to
@@ -1115,6 +1116,69 @@ static const struct intel_ddi_buf_trans mtl_c20_trans_uhbr = {
 	.num_entries = ARRAY_SIZE(_mtl_c20_trans_uhbr),
 };
 
+/* DP1.4 */
+static const union intel_ddi_buf_trans_entry _xe3plpd_lt_trans_dp14[] = {
+	{ .lt = { 1, 0, 0, 21, 0  } },
+	{ .lt = { 1, 1, 0, 24, 3  } },
+	{ .lt = { 1, 2, 0, 28, 7  } },
+	{ .lt = { 0, 3, 0, 35, 13 } },
+	{ .lt = { 1, 1, 0, 27, 0  } },
+	{ .lt = { 1, 2, 0, 31, 4  } },
+	{ .lt = { 0, 3, 0, 39, 9  } },
+	{ .lt = { 1, 2, 0, 35, 0  } },
+	{ .lt = { 0, 3, 0, 41, 7  } },
+	{ .lt = { 0, 3, 0, 48, 0  } },
+};
+
+/* DP2.1 */
+static const union intel_ddi_buf_trans_entry _xe3plpd_lt_trans_uhbr[] = {
+	{ .lt = { 0, 0, 0, 48, 0  } },
+	{ .lt = { 0, 0, 0, 43, 5  } },
+	{ .lt = { 0, 0, 0, 40, 8  } },
+	{ .lt = { 0, 0, 0, 37, 11 } },
+	{ .lt = { 0, 0, 0, 33, 15 } },
+	{ .lt = { 0, 0, 2, 46, 0  } },
+	{ .lt = { 0, 0, 2, 42, 4  } },
+	{ .lt = { 0, 0, 2, 38, 8  } },
+	{ .lt = { 0, 0, 2, 35, 11 } },
+	{ .lt = { 0, 0, 2, 33, 13 } },
+	{ .lt = { 0, 0, 4, 44, 0  } },
+	{ .lt = { 0, 0, 4, 40, 4  } },
+	{ .lt = { 0, 0, 4, 37, 7  } },
+	{ .lt = { 0, 0, 4, 33, 11 } },
+	{ .lt = { 0, 0, 8, 40, 0  } },
+	{ .lt = { 1, 0, 2, 26, 2  } },
+};
+
+/* eDp */
+static const union intel_ddi_buf_trans_entry _xe3plpd_lt_trans_edp[] = {
+	{ .lt = { 1, 0, 0, 12, 0 } },
+	{ .lt = { 1, 1, 0, 13, 1 } },
+	{ .lt = { 1, 2, 0, 15, 3 } },
+	{ .lt = { 1, 3, 0, 19, 7 } },
+	{ .lt = { 1, 1, 0, 14, 0 } },
+	{ .lt = { 1, 2, 0, 16, 2 } },
+	{ .lt = { 1, 3, 0, 21, 5 } },
+	{ .lt = { 1, 2, 0, 18, 0 } },
+	{ .lt = { 1, 3, 0, 22, 4 } },
+	{ .lt = { 1, 3, 0, 26, 0 } },
+};
+
+static const struct intel_ddi_buf_trans xe3plpd_lt_trans_dp14 = {
+	.entries = _xe3plpd_lt_trans_dp14,
+	.num_entries = ARRAY_SIZE(_xe3plpd_lt_trans_dp14),
+};
+
+static const struct intel_ddi_buf_trans xe3plpd_lt_trans_uhbr = {
+	.entries = _xe3plpd_lt_trans_uhbr,
+	.num_entries = ARRAY_SIZE(_xe3plpd_lt_trans_uhbr),
+};
+
+static const struct intel_ddi_buf_trans xe3plpd_lt_trans_edp = {
+	.entries = _xe3plpd_lt_trans_edp,
+	.num_entries = ARRAY_SIZE(_xe3plpd_lt_trans_edp),
+};
+
 bool is_hobl_buf_trans(const struct intel_ddi_buf_trans *table)
 {
 	return table == &tgl_combo_phy_trans_edp_hbr2_hobl;
@@ -1707,11 +1771,26 @@ mtl_get_c20_buf_trans(struct intel_encoder *encoder,
 		return intel_get_buf_trans(&mtl_c20_trans_dp14, n_entries);
 }
 
+static const struct intel_ddi_buf_trans *
+xe3plpd_get_lt_buf_trans(struct intel_encoder *encoder,
+			 const struct intel_crtc_state *crtc_state,
+			 int *n_entries)
+{
+	if (intel_crtc_has_dp_encoder(crtc_state) && intel_dp_is_uhbr(crtc_state))
+		return intel_get_buf_trans(&xe3plpd_lt_trans_uhbr, n_entries);
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return intel_get_buf_trans(&xe3plpd_lt_trans_edp, n_entries);
+	else
+		return intel_get_buf_trans(&xe3plpd_lt_trans_dp14, n_entries);
+}
+
 void intel_ddi_buf_trans_init(struct intel_encoder *encoder)
 {
 	struct intel_display *display = to_intel_display(encoder);
 
-	if (DISPLAY_VER(display) >= 14) {
+	if (HAS_LT_PHY(display)) {
+		encoder->get_buf_trans = xe3plpd_get_lt_buf_trans;
+	} else if (DISPLAY_VER(display) >= 14) {
 		if (intel_encoder_is_c10phy(encoder))
 			encoder->get_buf_trans = mtl_get_c10_buf_trans;
 		else
diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h
index 29a190390192..cec332090a20 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h
+++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h
@@ -50,6 +50,14 @@ struct dg2_snps_phy_buf_trans {
 	u8 post_cursor;
 };
 
+struct xe3plpd_lt_phy_buf_trans {
+	u8 txswing;
+	u8 txswing_level;
+	u8 pre_cursor;
+	u8 main_cursor;
+	u8 post_cursor;
+};
+
 union intel_ddi_buf_trans_entry {
 	struct hsw_ddi_buf_trans hsw;
 	struct bxt_ddi_buf_trans bxt;
@@ -57,6 +65,7 @@ union intel_ddi_buf_trans_entry {
 	struct icl_mg_phy_ddi_buf_trans mg;
 	struct tgl_dkl_phy_ddi_buf_trans dkl;
 	struct dg2_snps_phy_buf_trans snps;
+	struct xe3plpd_lt_phy_buf_trans lt;
 };
 
 struct intel_ddi_buf_trans {
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 5dca7f96b425..e6d18e2551e2 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -51,7 +51,6 @@
 #include "i915_config.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "i9xx_plane.h"
 #include "i9xx_plane_regs.h"
 #include "i9xx_wm.h"
@@ -60,6 +59,7 @@
 #include "intel_audio.h"
 #include "intel_bo.h"
 #include "intel_bw.h"
+#include "intel_casf.h"
 #include "intel_cdclk.h"
 #include "intel_clock_gating.h"
 #include "intel_color.h"
@@ -76,6 +76,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_dmc.h"
 #include "intel_dp.h"
@@ -99,6 +100,7 @@
 #include "intel_hdmi.h"
 #include "intel_hotplug.h"
 #include "intel_link_bw.h"
+#include "intel_lt_phy.h"
 #include "intel_lvds.h"
 #include "intel_lvds_regs.h"
 #include "intel_modeset_setup.h"
@@ -129,11 +131,9 @@
 #include "skl_scaler.h"
 #include "skl_universal_plane.h"
 #include "skl_watermark.h"
-#include "vlv_dpio_phy_regs.h"
 #include "vlv_dsi.h"
 #include "vlv_dsi_pll.h"
 #include "vlv_dsi_regs.h"
-#include "vlv_sideband.h"
 
 static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state);
 static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state);
@@ -141,65 +141,6 @@ static void hsw_set_transconf(const struct intel_crtc_state *crtc_state);
 static void bdw_set_pipe_misc(struct intel_dsb *dsb,
 			      const struct intel_crtc_state *crtc_state);
 
-/* returns HPLL frequency in kHz */
-int vlv_get_hpll_vco(struct drm_device *drm)
-{
-	int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
-
-	/* Obtain SKU information */
-	hpll_freq = vlv_cck_read(drm, CCK_FUSE_REG) &
-		CCK_FUSE_HPLL_FREQ_MASK;
-
-	return vco_freq[hpll_freq] * 1000;
-}
-
-int vlv_get_cck_clock(struct drm_device *drm,
-		      const char *name, u32 reg, int ref_freq)
-{
-	u32 val;
-	int divider;
-
-	val = vlv_cck_read(drm, reg);
-	divider = val & CCK_FREQUENCY_VALUES;
-
-	drm_WARN(drm, (val & CCK_FREQUENCY_STATUS) !=
-		 (divider << CCK_FREQUENCY_STATUS_SHIFT),
-		 "%s change in progress\n", name);
-
-	return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1);
-}
-
-int vlv_get_cck_clock_hpll(struct drm_device *drm,
-			   const char *name, u32 reg)
-{
-	struct drm_i915_private *dev_priv = to_i915(drm);
-	int hpll;
-
-	vlv_cck_get(drm);
-
-	if (dev_priv->hpll_freq == 0)
-		dev_priv->hpll_freq = vlv_get_hpll_vco(drm);
-
-	hpll = vlv_get_cck_clock(drm, name, reg, dev_priv->hpll_freq);
-
-	vlv_cck_put(drm);
-
-	return hpll;
-}
-
-void intel_update_czclk(struct intel_display *display)
-{
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-
-	if (!display->platform.valleyview && !display->platform.cherryview)
-		return;
-
-	dev_priv->czclk_freq = vlv_get_cck_clock_hpll(display->drm, "czclk",
-						      CCK_CZ_CLOCK_CONTROL);
-
-	drm_dbg_kms(display->drm, "CZ clock rate: %d kHz\n", dev_priv->czclk_freq);
-}
-
 static bool is_hdr_mode(const struct intel_crtc_state *crtc_state)
 {
 	return (crtc_state->active_planes &
@@ -891,9 +832,8 @@ static void intel_async_flip_vtd_wa(struct intel_display *display,
 static bool needs_async_flip_vtd_wa(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 
-	return crtc_state->uapi.async_flip && i915_vtd_active(i915) &&
+	return crtc_state->uapi.async_flip && intel_display_vtd_active(display) &&
 		(DISPLAY_VER(display) == 9 || display->platform.broadwell ||
 		 display->platform.haswell);
 }
@@ -1040,6 +980,24 @@ static bool audio_disabling(const struct intel_crtc_state *old_crtc_state,
 		 memcmp(old_crtc_state->eld, new_crtc_state->eld, MAX_ELD_BYTES) != 0);
 }
 
+static bool intel_casf_enabling(const struct intel_crtc_state *new_crtc_state,
+				const struct intel_crtc_state *old_crtc_state)
+{
+	if (!new_crtc_state->hw.active)
+		return false;
+
+	return is_enabling(hw.casf_params.casf_enable, old_crtc_state, new_crtc_state);
+}
+
+static bool intel_casf_disabling(const struct intel_crtc_state *old_crtc_state,
+				 const struct intel_crtc_state *new_crtc_state)
+{
+	if (!new_crtc_state->hw.active)
+		return false;
+
+	return is_disabling(hw.casf_params.casf_enable, old_crtc_state, new_crtc_state);
+}
+
 #undef is_disabling
 #undef is_enabling
 
@@ -1195,6 +1153,9 @@ static void intel_pre_plane_update(struct intel_atomic_state *state,
 	if (audio_disabling(old_crtc_state, new_crtc_state))
 		intel_encoders_audio_disable(state, crtc);
 
+	if (intel_casf_disabling(old_crtc_state, new_crtc_state))
+		intel_casf_disable(new_crtc_state);
+
 	intel_drrs_deactivate(old_crtc_state);
 
 	if (hsw_ips_pre_update(state, crtc))
@@ -1642,8 +1603,7 @@ static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
 	}
 
 	intel_set_transcoder_timings(crtc_state);
-	if (HAS_VRR(display))
-		intel_vrr_set_transcoder_timings(crtc_state);
+	intel_vrr_set_transcoder_timings(crtc_state);
 
 	if (cpu_transcoder != TRANSCODER_EDP)
 		intel_de_write(display, TRANS_MULT(display, cpu_transcoder),
@@ -2422,39 +2382,44 @@ static int intel_crtc_compute_pipe_mode(struct intel_crtc_state *crtc_state)
 	return 0;
 }
 
-static int intel_crtc_vblank_delay(const struct intel_crtc_state *crtc_state)
+static int intel_crtc_set_context_latency(struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	int vblank_delay = 0;
+	int set_context_latency = 0;
 
 	if (!HAS_DSB(display))
 		return 0;
 
-	vblank_delay = max(vblank_delay, intel_psr_min_vblank_delay(crtc_state));
+	set_context_latency = max(set_context_latency,
+				  intel_psr_min_set_context_latency(crtc_state));
 
-	return vblank_delay;
+	return set_context_latency;
 }
 
-static int intel_crtc_compute_vblank_delay(struct intel_atomic_state *state,
-					   struct intel_crtc *crtc)
+static int intel_crtc_compute_set_context_latency(struct intel_atomic_state *state,
+						  struct intel_crtc *crtc)
 {
 	struct intel_display *display = to_intel_display(state);
 	struct intel_crtc_state *crtc_state =
 		intel_atomic_get_new_crtc_state(state, crtc);
 	struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
-	int vblank_delay, max_vblank_delay;
+	int set_context_latency, max_vblank_delay;
+
+	set_context_latency = intel_crtc_set_context_latency(crtc_state);
 
-	vblank_delay = intel_crtc_vblank_delay(crtc_state);
 	max_vblank_delay = adjusted_mode->crtc_vblank_end - adjusted_mode->crtc_vblank_start - 1;
 
-	if (vblank_delay > max_vblank_delay) {
-		drm_dbg_kms(display->drm, "[CRTC:%d:%s] vblank delay (%d) exceeds max (%d)\n",
-			    crtc->base.base.id, crtc->base.name, vblank_delay, max_vblank_delay);
+	if (set_context_latency > max_vblank_delay) {
+		drm_dbg_kms(display->drm, "[CRTC:%d:%s] set context latency (%d) exceeds max (%d)\n",
+			    crtc->base.base.id, crtc->base.name,
+			    set_context_latency,
+			    max_vblank_delay);
 		return -EINVAL;
 	}
 
-	adjusted_mode->crtc_vblank_start += vblank_delay;
+	crtc_state->set_context_latency = set_context_latency;
+	adjusted_mode->crtc_vblank_start += set_context_latency;
 
 	return 0;
 }
@@ -2466,11 +2431,11 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state,
 		intel_atomic_get_new_crtc_state(state, crtc);
 	int ret;
 
-	ret = intel_crtc_compute_vblank_delay(state, crtc);
+	ret = intel_dpll_crtc_compute_clock(state, crtc);
 	if (ret)
 		return ret;
 
-	ret = intel_dpll_crtc_compute_clock(state, crtc);
+	ret = intel_crtc_compute_set_context_latency(state, crtc);
 	if (ret)
 		return ret;
 
@@ -2487,6 +2452,8 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state,
 	if (crtc_state->has_pch_encoder)
 		return ilk_fdi_compute_config(crtc, crtc_state);
 
+	intel_vrr_compute_guardband(crtc_state);
+
 	return 0;
 }
 
@@ -2678,13 +2645,16 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_sta
 	if (DISPLAY_VER(display) >= 13) {
 		intel_de_write(display,
 			       TRANS_SET_CONTEXT_LATENCY(display, cpu_transcoder),
-			       crtc_vblank_start - crtc_vdisplay);
+			       crtc_state->set_context_latency);
 
 		/*
 		 * VBLANK_START not used by hw, just clear it
 		 * to make it stand out in register dumps.
 		 */
 		crtc_vblank_start = 1;
+	} else if (DISPLAY_VER(display) == 12) {
+		/* VBLANK_START - VACTIVE defines SCL on TGL */
+		crtc_vblank_start = crtc_vdisplay + crtc_state->set_context_latency;
 	}
 
 	if (DISPLAY_VER(display) >= 4)
@@ -2768,13 +2738,16 @@ static void intel_set_transcoder_timings_lrr(const struct intel_crtc_state *crtc
 	if (DISPLAY_VER(display) >= 13) {
 		intel_de_write(display,
 			       TRANS_SET_CONTEXT_LATENCY(display, cpu_transcoder),
-			       crtc_vblank_start - crtc_vdisplay);
+			       crtc_state->set_context_latency);
 
 		/*
 		 * VBLANK_START not used by hw, just clear it
 		 * to make it stand out in register dumps.
 		 */
 		crtc_vblank_start = 1;
+	} else if (DISPLAY_VER(display) == 12) {
+		/* VBLANK_START - VACTIVE defines SCL on TGL */
+		crtc_vblank_start = crtc_vdisplay + crtc_state->set_context_latency;
 	}
 
 	/*
@@ -2881,11 +2854,24 @@ static void intel_get_transcoder_timings(struct intel_crtc *crtc,
 		adjusted_mode->crtc_vblank_end += 1;
 	}
 
-	if (DISPLAY_VER(display) >= 13 && !transcoder_is_dsi(cpu_transcoder))
-		adjusted_mode->crtc_vblank_start =
-			adjusted_mode->crtc_vdisplay +
+	if (DISPLAY_VER(display) >= 13 && !transcoder_is_dsi(cpu_transcoder)) {
+		pipe_config->set_context_latency =
 			intel_de_read(display,
 				      TRANS_SET_CONTEXT_LATENCY(display, cpu_transcoder));
+		adjusted_mode->crtc_vblank_start =
+			adjusted_mode->crtc_vdisplay +
+			pipe_config->set_context_latency;
+	} else if (DISPLAY_VER(display) == 12) {
+		/*
+		 * TGL doesn't have a dedicated register for SCL.
+		 * Instead, the hardware derives SCL from the difference between
+		 * TRANS_VBLANK.vblank_start and TRANS_VTOTAL.vactive.
+		 * To reflect the HW behaviour, readout the value for SCL as
+		 * Vblank start - Vactive.
+		 */
+		pipe_config->set_context_latency =
+			adjusted_mode->crtc_vblank_start - adjusted_mode->crtc_vdisplay;
+	}
 
 	if (DISPLAY_VER(display) >= 30)
 		pipe_config->min_hblank = intel_de_read(display,
@@ -3952,6 +3938,20 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 	intel_joiner_get_config(pipe_config);
 	intel_dsc_get_config(pipe_config);
 
+	/* intel_vrr_get_config() depends on .framestart_delay */
+	if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
+		tmp = intel_de_read(display, CHICKEN_TRANS(display, pipe_config->cpu_transcoder));
+
+		pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
+	} else {
+		/* no idea if this is correct */
+		pipe_config->framestart_delay = 1;
+	}
+
+	/*
+	 * intel_vrr_get_config() depends on TRANS_SET_CONTEXT_LATENCY
+	 * readout done by intel_get_transcoder_timings().
+	 */
 	if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
 	    DISPLAY_VER(display) >= 11)
 		intel_get_transcoder_timings(crtc, pipe_config);
@@ -4003,15 +4003,6 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 		pipe_config->pixel_multiplier = 1;
 	}
 
-	if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
-		tmp = intel_de_read(display, CHICKEN_TRANS(display, pipe_config->cpu_transcoder));
-
-		pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
-	} else {
-		/* no idea if this is correct */
-		pipe_config->framestart_delay = 1;
-	}
-
 out:
 	intel_display_power_put_all_in_set(display, &crtc->hw_readout_power_domains);
 
@@ -4258,9 +4249,14 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
 		return ret;
 	}
 
+	ret = intel_casf_compute_config(crtc_state);
+	if (ret)
+		return ret;
+
 	if (DISPLAY_VER(display) >= 9) {
 		if (intel_crtc_needs_modeset(crtc_state) ||
-		    intel_crtc_needs_fastset(crtc_state)) {
+		    intel_crtc_needs_fastset(crtc_state) ||
+		    intel_casf_needs_scaler(crtc_state)) {
 			ret = skl_update_scaler_crtc(crtc_state);
 			if (ret)
 				return ret;
@@ -4639,7 +4635,7 @@ intel_modeset_pipe_config(struct intel_atomic_state *state,
 	if (ret)
 		return ret;
 
-	crtc_state->fec_enable = limits->force_fec_pipes & BIT(crtc->pipe);
+	crtc_state->dsc.compression_enabled_on_link = limits->link_dsc_pipes & BIT(crtc->pipe);
 	crtc_state->max_link_bpp_x16 = limits->max_bpp_x16[crtc->pipe];
 
 	if (crtc_state->pipe_bpp > fxp_q4_to_int(crtc_state->max_link_bpp_x16)) {
@@ -4760,8 +4756,6 @@ intel_modeset_pipe_config_late(struct intel_atomic_state *state,
 	struct drm_connector *connector;
 	int i;
 
-	intel_vrr_compute_config_late(crtc_state);
-
 	for_each_new_connector_in_state(&state->base, connector,
 					conn_state, i) {
 		struct intel_encoder *encoder =
@@ -4996,9 +4990,33 @@ static bool allow_vblank_delay_fastset(const struct intel_crtc_state *old_crtc_s
 	 * Allow fastboot to fix up vblank delay (handled via LRR
 	 * codepaths), a bit dodgy as the registers aren't
 	 * double buffered but seems to be working more or less...
+	 *
+	 * Also allow this when the VRR timing generator is always on,
+	 * and optimized guardband is used. In such cases,
+	 * vblank delay may vary even without inherited state, but it's
+	 * still safe as VRR guardband is still same.
 	 */
-	return HAS_LRR(display) && old_crtc_state->inherited &&
-		!intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DSI);
+	return HAS_LRR(display) &&
+	       (old_crtc_state->inherited || intel_vrr_always_use_vrr_tg(display)) &&
+	       !intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DSI);
+}
+
+static void
+pipe_config_lt_phy_pll_mismatch(struct drm_printer *p, bool fastset,
+				const struct intel_crtc *crtc,
+				const char *name,
+				const struct intel_lt_phy_pll_state *a,
+				const struct intel_lt_phy_pll_state *b)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	char *chipname = "LTPHY";
+
+	pipe_config_mismatch(p, fastset, crtc, name, chipname);
+
+	drm_printf(p, "expected:\n");
+	intel_lt_phy_dump_hw_state(display, a);
+	drm_printf(p, "found:\n");
+	intel_lt_phy_dump_hw_state(display, b);
 }
 
 bool
@@ -5125,6 +5143,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	} \
 } while (0)
 
+#define PIPE_CONF_CHECK_PLL_LT(name) do { \
+	if (!intel_lt_phy_pll_compare_hw_state(&current_config->name, \
+					       &pipe_config->name)) { \
+		pipe_config_lt_phy_pll_mismatch(&p, fastset, crtc, __stringify(name), \
+						&current_config->name, \
+						&pipe_config->name); \
+		ret = false; \
+	} \
+} while (0)
+
 #define PIPE_CONF_CHECK_TIMINGS(name) do {     \
 	PIPE_CONF_CHECK_I(name.crtc_hdisplay); \
 	PIPE_CONF_CHECK_I(name.crtc_htotal); \
@@ -5319,6 +5347,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 
 		PIPE_CONF_CHECK_I(scaler_state.scaler_id);
 		PIPE_CONF_CHECK_I(pixel_rate);
+		PIPE_CONF_CHECK_BOOL(hw.casf_params.casf_enable);
+		PIPE_CONF_CHECK_I(hw.casf_params.win_size);
+		PIPE_CONF_CHECK_I(hw.casf_params.strength);
 
 		PIPE_CONF_CHECK_X(gamma_mode);
 		if (display->platform.cherryview)
@@ -5349,7 +5380,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 		PIPE_CONF_CHECK_PLL(dpll_hw_state);
 
 	/* FIXME convert MTL+ platforms over to dpll_mgr */
-	if (DISPLAY_VER(display) >= 14)
+	if (HAS_LT_PHY(display))
+		PIPE_CONF_CHECK_PLL_LT(dpll_hw_state.ltpll);
+	else if (DISPLAY_VER(display) >= 14)
 		PIPE_CONF_CHECK_PLL_CX0(dpll_hw_state.cx0pll);
 
 	PIPE_CONF_CHECK_X(dsi_pll.ctrl);
@@ -5443,6 +5476,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 		PIPE_CONF_CHECK_I(vrr.guardband);
 	}
 
+	PIPE_CONF_CHECK_I(set_context_latency);
+
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I
 #undef PIPE_CONF_CHECK_LLI
@@ -5689,6 +5724,23 @@ static int hsw_mode_set_planes_workaround(struct intel_atomic_state *state)
 	return 0;
 }
 
+u8 intel_calc_enabled_pipes(struct intel_atomic_state *state,
+			    u8 enabled_pipes)
+{
+	const struct intel_crtc_state *crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
+		if (crtc_state->hw.enable)
+			enabled_pipes |= BIT(crtc->pipe);
+		else
+			enabled_pipes &= ~BIT(crtc->pipe);
+	}
+
+	return enabled_pipes;
+}
+
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes)
 {
@@ -5718,12 +5770,16 @@ static int intel_modeset_checks(struct intel_atomic_state *state)
 	return 0;
 }
 
-static bool lrr_params_changed(const struct drm_display_mode *old_adjusted_mode,
-			       const struct drm_display_mode *new_adjusted_mode)
+static bool lrr_params_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state)
 {
+	const struct drm_display_mode *old_adjusted_mode = &old_crtc_state->hw.adjusted_mode;
+	const struct drm_display_mode *new_adjusted_mode = &new_crtc_state->hw.adjusted_mode;
+
 	return old_adjusted_mode->crtc_vblank_start != new_adjusted_mode->crtc_vblank_start ||
 		old_adjusted_mode->crtc_vblank_end != new_adjusted_mode->crtc_vblank_end ||
-		old_adjusted_mode->crtc_vtotal != new_adjusted_mode->crtc_vtotal;
+		old_adjusted_mode->crtc_vtotal != new_adjusted_mode->crtc_vtotal ||
+		old_crtc_state->set_context_latency != new_crtc_state->set_context_latency;
 }
 
 static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_state,
@@ -5749,8 +5805,7 @@ static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_sta
 				   &new_crtc_state->dp_m_n))
 		new_crtc_state->update_m_n = false;
 
-	if (!lrr_params_changed(&old_crtc_state->hw.adjusted_mode,
-				&new_crtc_state->hw.adjusted_mode))
+	if (!lrr_params_changed(old_crtc_state, new_crtc_state))
 		new_crtc_state->update_lrr = false;
 
 	if (intel_crtc_needs_modeset(new_crtc_state))
@@ -6342,7 +6397,6 @@ int intel_atomic_check(struct drm_device *dev,
 	struct intel_crtc_state *old_crtc_state, *new_crtc_state;
 	struct intel_crtc *crtc;
 	int ret, i;
-	bool any_ms = false;
 
 	if (!intel_display_driver_check_access(display))
 		return -ENODEV;
@@ -6450,14 +6504,11 @@ int intel_atomic_check(struct drm_device *dev,
 		if (!intel_crtc_needs_modeset(new_crtc_state))
 			continue;
 
-		any_ms = true;
-
 		intel_dpll_release(state, crtc);
 	}
 
-	if (any_ms && !check_digital_port_conflicts(state)) {
-		drm_dbg_kms(display->drm,
-			    "rejecting conflicting digital port configuration\n");
+	if (intel_any_crtc_needs_modeset(state) && !check_digital_port_conflicts(state)) {
+		drm_dbg_kms(display->drm, "rejecting conflicting digital port configuration\n");
 		ret = -EINVAL;
 		goto fail;
 	}
@@ -6466,29 +6517,25 @@ int intel_atomic_check(struct drm_device *dev,
 	if (ret)
 		goto fail;
 
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i)
+		new_crtc_state->min_cdclk = intel_crtc_min_cdclk(new_crtc_state);
+
 	ret = intel_compute_global_watermarks(state);
 	if (ret)
 		goto fail;
 
-	ret = intel_bw_atomic_check(state, any_ms);
+	ret = intel_bw_atomic_check(state);
 	if (ret)
 		goto fail;
 
-	ret = intel_cdclk_atomic_check(state, &any_ms);
+	ret = intel_cdclk_atomic_check(state);
 	if (ret)
 		goto fail;
 
-	if (intel_any_crtc_needs_modeset(state))
-		any_ms = true;
-
-	if (any_ms) {
+	if (intel_any_crtc_needs_modeset(state)) {
 		ret = intel_modeset_checks(state);
 		if (ret)
 			goto fail;
-
-		ret = intel_modeset_calc_cdclk(state);
-		if (ret)
-			return ret;
 	}
 
 	ret = intel_pmdemand_atomic_check(state);
@@ -6739,6 +6786,11 @@ static void intel_pre_update_crtc(struct intel_atomic_state *state,
 			intel_vrr_set_transcoder_timings(new_crtc_state);
 	}
 
+	if (intel_casf_enabling(new_crtc_state, old_crtc_state))
+		intel_casf_enable(new_crtc_state);
+	else if (new_crtc_state->hw.casf_params.strength != old_crtc_state->hw.casf_params.strength)
+		intel_casf_update_strength(new_crtc_state);
+
 	intel_fbc_update(state, crtc);
 
 	drm_WARN_ON(display->drm, !intel_display_power_is_enabled(display, POWER_DOMAIN_DC_OFF));
@@ -7307,7 +7359,7 @@ static void intel_atomic_dsb_finish(struct intel_atomic_state *state,
 		intel_dsb_wait_vblanks(new_crtc_state->dsb_commit, 1);
 
 		intel_vrr_send_push(new_crtc_state->dsb_commit, new_crtc_state);
-		intel_dsb_wait_vblank_delay(state, new_crtc_state->dsb_commit);
+		intel_dsb_wait_for_delayed_vblank(state, new_crtc_state->dsb_commit);
 		intel_vrr_check_push_sent(new_crtc_state->dsb_commit,
 					  new_crtc_state);
 		intel_dsb_interrupt(new_crtc_state->dsb_commit);
@@ -7397,13 +7449,13 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 	 */
 	intel_pmdemand_pre_plane_update(state);
 
-	if (state->modeset) {
+	if (state->modeset)
 		drm_atomic_helper_update_legacy_modeset_state(display->drm, &state->base);
 
-		intel_set_cdclk_pre_plane_update(state);
+	intel_set_cdclk_pre_plane_update(state);
 
+	if (state->modeset)
 		intel_modeset_verify_disabled(state);
-	}
 
 	intel_sagv_pre_plane_update(state);
 
@@ -7516,8 +7568,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 		intel_verify_planes(state);
 
 	intel_sagv_post_plane_update(state);
-	if (state->modeset)
-		intel_set_cdclk_post_plane_update(state);
+	intel_set_cdclk_post_plane_update(state);
 	intel_pmdemand_post_plane_update(state);
 
 	drm_atomic_helper_commit_hw_done(&state->base);
@@ -8003,6 +8054,14 @@ enum drm_mode_status intel_mode_valid(struct drm_device *dev,
 	    mode->vtotal > vtotal_max)
 		return MODE_V_ILLEGAL;
 
+	/*
+	 * WM_LINETIME only goes up to (almost) 64 usec, and also
+	 * knowing that the linetime is always bounded will ease the
+	 * mind during various calculations.
+	 */
+	if (DIV_ROUND_UP(mode->htotal * 1000, mode->clock) > 64)
+		return MODE_H_ILLEGAL;
+
 	return MODE_OK;
 }
 
@@ -8327,7 +8386,5 @@ void i830_disable_pipe(struct intel_display *display, enum pipe pipe)
 
 bool intel_scanout_needs_vtd_wa(struct intel_display *display)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
-	return IS_DISPLAY_VER(display, 6, 11) && i915_vtd_active(i915);
+	return IS_DISPLAY_VER(display, 6, 11) && intel_display_vtd_active(display);
 }
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 37e2ab301a80..fc2ef92ccf68 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -394,6 +394,8 @@ enum phy_fia {
 				       i)
 
 int intel_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
+u8 intel_calc_enabled_pipes(struct intel_atomic_state *state,
+			    u8 enabled_pipes);
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes);
 void intel_link_compute_m_n(u16 bpp, int nlanes,
@@ -435,11 +437,6 @@ void intel_enable_transcoder(const struct intel_crtc_state *new_crtc_state);
 void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state);
 void i830_enable_pipe(struct intel_display *display, enum pipe pipe);
 void i830_disable_pipe(struct intel_display *display, enum pipe pipe);
-int vlv_get_hpll_vco(struct drm_device *drm);
-int vlv_get_cck_clock(struct drm_device *drm,
-		      const char *name, u32 reg, int ref_freq);
-int vlv_get_cck_clock_hpll(struct drm_device *drm,
-			   const char *name, u32 reg);
 bool intel_has_pending_fb_unpin(struct intel_display *display);
 void intel_encoder_destroy(struct drm_encoder *encoder);
 struct drm_display_mode *
@@ -528,7 +525,6 @@ void intel_init_display_hooks(struct intel_display *display);
 void intel_setup_outputs(struct intel_display *display);
 int intel_initial_commit(struct intel_display *display);
 void intel_panel_sanitize_ssc(struct intel_display *display);
-void intel_update_czclk(struct intel_display *display);
 enum drm_mode_status intel_mode_valid(struct drm_device *dev,
 				      const struct drm_display_mode *mode);
 int intel_atomic_commit(struct drm_device *dev, struct drm_atomic_state *_state,
diff --git a/drivers/gpu/drm/i915/display/intel_display_conversion.c b/drivers/gpu/drm/i915/display/intel_display_conversion.c
index d56065f22655..9a47aa38cf82 100644
--- a/drivers/gpu/drm/i915/display/intel_display_conversion.c
+++ b/drivers/gpu/drm/i915/display/intel_display_conversion.c
@@ -1,15 +1,21 @@
 // SPDX-License-Identifier: MIT
 /* Copyright © 2024 Intel Corporation */
 
-#include "i915_drv.h"
-#include "intel_display_conversion.h"
+#include <drm/intel/display_member.h>
 
-static struct intel_display *__i915_to_display(struct drm_i915_private *i915)
-{
-	return i915->display;
-}
+#include "intel_display_conversion.h"
 
 struct intel_display *__drm_to_display(struct drm_device *drm)
 {
-	return __i915_to_display(to_i915(drm));
+	/*
+	 * Note: This relies on both struct drm_i915_private and struct
+	 * xe_device having the struct drm_device and struct intel_display *
+	 * members at the same relative offsets, as defined by struct
+	 * __intel_generic_device.
+	 *
+	 * See also INTEL_DISPLAY_MEMBER_STATIC_ASSERT().
+	 */
+	struct __intel_generic_device *d = container_of(drm, struct __intel_generic_device, drm);
+
+	return d->display;
 }
diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h
index 8c226406c5cd..893279be8409 100644
--- a/drivers/gpu/drm/i915/display/intel_display_core.h
+++ b/drivers/gpu/drm/i915/display/intel_display_core.h
@@ -41,6 +41,7 @@ struct intel_cdclk_vals;
 struct intel_color_funcs;
 struct intel_crtc;
 struct intel_crtc_state;
+struct intel_display_parent_interface;
 struct intel_dmc;
 struct intel_dpll_global_funcs;
 struct intel_dpll_mgr;
@@ -291,6 +292,9 @@ struct intel_display {
 	/* Intel PCH: where the south display engine lives */
 	enum intel_pch pch_type;
 
+	/* Parent, or core, driver functions exposed to display */
+	const struct intel_display_parent_interface *parent;
+
 	/* Display functions */
 	struct {
 		/* Top level crtc-ish functions */
@@ -369,6 +373,10 @@ struct intel_display {
 		struct intel_global_obj obj;
 	} dbuf;
 
+	struct {
+		struct intel_global_obj obj;
+	} dbuf_bw;
+
 	struct {
 		/*
 		 * dkl.phy_lock protects against concurrent access of the
@@ -475,7 +483,21 @@ struct intel_display {
 
 		struct work_struct vblank_notify_work;
 
-		u32 de_irq_mask[I915_MAX_PIPES];
+		/*
+		 * Cached value of VLV/CHV IMR to avoid reads in updating the
+		 * bitfield.
+		 */
+		u32 vlv_imr_mask;
+		/*
+		 * Cached value of gen 5-7 DE IMR to avoid reads in updating the
+		 * bitfield.
+		 */
+		u32 ilk_de_imr_mask;
+		/*
+		 * Cached value of BDW+ DE pipe IMR to avoid reads in updating
+		 * the bitfield.
+		 */
+		u32 de_pipe_imr_mask[I915_MAX_PIPES];
 		u32 pipestat_irq_mask[I915_MAX_PIPES];
 	} irq;
 
@@ -567,6 +589,11 @@ struct intel_display {
 		u32 bxt_phy_grc;
 	} state;
 
+	struct {
+		unsigned int hpll_freq;
+		unsigned int czclk_freq;
+	} vlv_clock;
+
 	struct {
 		/* ordered wq for modesets */
 		struct workqueue_struct *modeset;
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 10dddec3796f..7014331108aa 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -47,6 +47,7 @@
 #include "intel_psr_regs.h"
 #include "intel_vdsc.h"
 #include "intel_wm.h"
+#include "intel_tc.h"
 
 static struct intel_display *node_to_intel_display(struct drm_info_node *node)
 {
@@ -246,6 +247,8 @@ static void intel_connector_info(struct seq_file *m,
 {
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	const struct drm_display_mode *mode;
+	struct drm_printer p = drm_seq_file_printer(m);
+	struct intel_digital_port *dig_port = NULL;
 
 	seq_printf(m, "[CONNECTOR:%d:%s]: status: %s\n",
 		   connector->base.id, connector->name,
@@ -268,14 +271,19 @@ static void intel_connector_info(struct seq_file *m,
 			intel_dp_mst_info(m, intel_connector);
 		else
 			intel_dp_info(m, intel_connector);
+		dig_port = dp_to_dig_port(intel_attached_dp(intel_connector));
 		break;
 	case DRM_MODE_CONNECTOR_HDMIA:
 		intel_hdmi_info(m, intel_connector);
+		dig_port = hdmi_to_dig_port(intel_attached_hdmi(intel_connector));
 		break;
 	default:
 		break;
 	}
 
+	if (dig_port != NULL && intel_encoder_is_tc(&dig_port->base))
+		intel_tc_info(&p, dig_port);
+
 	intel_hdcp_info(m, intel_connector);
 
 	seq_printf(m, "\tmax bpc: %u\n", connector->display_info.bpc);
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c
index a002bc6ce7b0..328447a5e5e8 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -1404,8 +1404,20 @@ static const struct platform_desc bmg_desc = {
 	PLATFORM_GROUP(dgfx),
 };
 
+static const u16 wcl_ids[] = {
+	INTEL_WCL_IDS(ID),
+	0
+};
+
 static const struct platform_desc ptl_desc = {
 	PLATFORM(pantherlake),
+	.subplatforms = (const struct subplatform_desc[]) {
+		{
+			SUBPLATFORM(pantherlake, wildcatlake),
+			.pciidlist = wcl_ids,
+		},
+		{},
+	}
 };
 
 __diag_pop();
@@ -1482,6 +1494,7 @@ static const struct {
 	INTEL_LNL_IDS(INTEL_DISPLAY_DEVICE, &lnl_desc),
 	INTEL_BMG_IDS(INTEL_DISPLAY_DEVICE, &bmg_desc),
 	INTEL_PTL_IDS(INTEL_DISPLAY_DEVICE, &ptl_desc),
+	INTEL_WCL_IDS(INTEL_DISPLAY_DEVICE, &ptl_desc),
 };
 
 static const struct {
@@ -1634,7 +1647,8 @@ static void display_platforms_or(struct intel_display_platforms *dst,
 	bitmap_or(dst->bitmap, dst->bitmap, src->bitmap, display_platforms_num_bits());
 }
 
-struct intel_display *intel_display_device_probe(struct pci_dev *pdev)
+struct intel_display *intel_display_device_probe(struct pci_dev *pdev,
+						 const struct intel_display_parent_interface *parent)
 {
 	struct intel_display *display;
 	const struct intel_display_device_info *info;
@@ -1650,6 +1664,8 @@ struct intel_display *intel_display_device_probe(struct pci_dev *pdev)
 	/* Add drm device backpointer as early as possible. */
 	display->drm = pci_get_drvdata(pdev);
 
+	display->parent = parent;
+
 	intel_display_params_copy(&display->params);
 
 	if (has_no_display(pdev)) {
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
index f329f1beafef..b559ef43d547 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -13,6 +13,7 @@
 
 struct drm_printer;
 struct intel_display;
+struct intel_display_parent_interface;
 struct pci_dev;
 
 /*
@@ -101,7 +102,9 @@ struct pci_dev;
 	/* Display ver 14.1 (based on GMD ID) */ \
 	func(battlemage) \
 	/* Display ver 30 (based on GMD ID) */ \
-	func(pantherlake)
+	func(pantherlake) \
+	func(pantherlake_wildcatlake)
+
 
 #define __MEMBER(name) unsigned long name:1;
 #define __COUNT(x) 1 +
@@ -140,10 +143,13 @@ struct intel_display_platforms {
 	func(overlay_needs_physical); \
 	func(supports_tv);
 
+#define HAS_128B_Y_TILING(__display)	(!(__display)->platform.i915g && !(__display)->platform.i915gm)
 #define HAS_4TILE(__display)		((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
 #define HAS_ASYNC_FLIPS(__display)	(DISPLAY_VER(__display) >= 5)
 #define HAS_AS_SDP(__display)		(DISPLAY_VER(__display) >= 13)
+#define HAS_AUX_CCS(__display)		(IS_DISPLAY_VER(__display, 9, 12) || (__display)->platform.alderlake_p || (__display)->platform.meteorlake)
 #define HAS_BIGJOINER(__display)	(DISPLAY_VER(__display) >= 11 && HAS_DSC(__display))
+#define HAS_CASF(__display)		(DISPLAY_VER(__display) >= 20)
 #define HAS_CDCLK_CRAWL(__display)	(DISPLAY_INFO(__display)->has_cdclk_crawl)
 #define HAS_CDCLK_SQUASH(__display)	(DISPLAY_INFO(__display)->has_cdclk_squash)
 #define HAS_CMRR(__display)		(DISPLAY_VER(__display) >= 20)
@@ -155,7 +161,7 @@ struct intel_display_platforms {
 #define HAS_DISPLAY(__display)		(DISPLAY_RUNTIME_INFO(__display)->pipe_mask != 0)
 #define HAS_DMC(__display)		(DISPLAY_RUNTIME_INFO(__display)->has_dmc)
 #define HAS_DMC_WAKELOCK(__display)	(DISPLAY_VER(__display) >= 20)
-#define HAS_DOUBLE_BUFFERED_M_N(__display)	(DISPLAY_VER(__display) >= 9 || (__display)->platform.broadwell)
+#define HAS_DOUBLE_BUFFERED_M_N(__display)	(IS_DISPLAY_VER((__display), 9, 14) || (__display)->platform.broadwell)
 #define HAS_DOUBLE_BUFFERED_LUT(__display)	(DISPLAY_VER(__display) >= 30)
 #define HAS_DOUBLE_WIDE(__display)	(DISPLAY_VER(__display) < 4)
 #define HAS_DP20(__display)		((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
@@ -308,7 +314,8 @@ struct intel_display_device_info {
 
 bool intel_display_device_present(struct intel_display *display);
 bool intel_display_device_enabled(struct intel_display *display);
-struct intel_display *intel_display_device_probe(struct pci_dev *pdev);
+struct intel_display *intel_display_device_probe(struct pci_dev *pdev,
+						 const struct intel_display_parent_interface *parent);
 void intel_display_device_remove(struct intel_display *display);
 void intel_display_device_info_runtime_init(struct intel_display *display);
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
index cf1c14412abe..eb0727b9a0f6 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -18,7 +18,7 @@
 #include <drm/drm_vblank.h>
 
 #include "i915_drv.h"
-#include "i915_utils.h"
+#include "i915_utils.h" /* for i915_inject_probe_failure() */
 #include "i9xx_wm.h"
 #include "intel_acpi.h"
 #include "intel_atomic.h"
@@ -28,12 +28,14 @@
 #include "intel_cdclk.h"
 #include "intel_color.h"
 #include "intel_crtc.h"
+#include "intel_dbuf_bw.h"
 #include "intel_display_core.h"
 #include "intel_display_debugfs.h"
 #include "intel_display_driver.h"
 #include "intel_display_irq.h"
 #include "intel_display_power.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_dkl_phy.h"
 #include "intel_dmc.h"
@@ -285,6 +287,10 @@ int intel_display_driver_probe_noirq(struct intel_display *display)
 	if (ret)
 		goto cleanup_wq_unordered;
 
+	ret = intel_dbuf_bw_init(display);
+	if (ret)
+		goto cleanup_wq_unordered;
+
 	ret = intel_bw_init(display);
 	if (ret)
 		goto cleanup_wq_unordered;
@@ -482,7 +488,6 @@ int intel_display_driver_probe_nogem(struct intel_display *display)
 	intel_dpll_init(display);
 	intel_fdi_pll_freq_update(display);
 
-	intel_update_czclk(display);
 	intel_display_driver_init_hw(display);
 	intel_dpll_update_ref_clks(display);
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.c b/drivers/gpu/drm/i915/display/intel_display_irq.c
index 123e054affbe..e1a812f6159b 100644
--- a/drivers/gpu/drm/i915/display/intel_display_irq.c
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.c
@@ -140,14 +140,14 @@ void ilk_update_display_irq(struct intel_display *display,
 	lockdep_assert_held(&display->irq.lock);
 	drm_WARN_ON(display->drm, enabled_irq_mask & ~interrupt_mask);
 
-	new_val = dev_priv->irq_mask;
+	new_val = display->irq.ilk_de_imr_mask;
 	new_val &= ~interrupt_mask;
 	new_val |= (~enabled_irq_mask & interrupt_mask);
 
-	if (new_val != dev_priv->irq_mask &&
+	if (new_val != display->irq.ilk_de_imr_mask &&
 	    !drm_WARN_ON(display->drm, !intel_irqs_enabled(dev_priv))) {
-		dev_priv->irq_mask = new_val;
-		intel_de_write(display, DEIMR, dev_priv->irq_mask);
+		display->irq.ilk_de_imr_mask = new_val;
+		intel_de_write(display, DEIMR, display->irq.ilk_de_imr_mask);
 		intel_de_posting_read(display, DEIMR);
 	}
 }
@@ -215,13 +215,13 @@ static void bdw_update_pipe_irq(struct intel_display *display,
 	if (drm_WARN_ON(display->drm, !intel_irqs_enabled(dev_priv)))
 		return;
 
-	new_val = display->irq.de_irq_mask[pipe];
+	new_val = display->irq.de_pipe_imr_mask[pipe];
 	new_val &= ~interrupt_mask;
 	new_val |= (~enabled_irq_mask & interrupt_mask);
 
-	if (new_val != display->irq.de_irq_mask[pipe]) {
-		display->irq.de_irq_mask[pipe] = new_val;
-		intel_de_write(display, GEN8_DE_PIPE_IMR(pipe), display->irq.de_irq_mask[pipe]);
+	if (new_val != display->irq.de_pipe_imr_mask[pipe]) {
+		display->irq.de_pipe_imr_mask[pipe] = new_val;
+		intel_de_write(display, GEN8_DE_PIPE_IMR(pipe), display->irq.de_pipe_imr_mask[pipe]);
 		intel_de_posting_read(display, GEN8_DE_PIPE_IMR(pipe));
 	}
 }
@@ -872,7 +872,7 @@ static void ilk_gtt_fault_irq_handler(struct intel_display *display)
 	}
 }
 
-void ilk_display_irq_handler(struct intel_display *display, u32 de_iir)
+static void _ilk_display_irq_handler(struct intel_display *display, u32 de_iir)
 {
 	enum pipe pipe;
 	u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG;
@@ -923,7 +923,7 @@ void ilk_display_irq_handler(struct intel_display *display, u32 de_iir)
 		ilk_display_rps_irq_handler(display);
 }
 
-void ivb_display_irq_handler(struct intel_display *display, u32 de_iir)
+static void _ivb_display_irq_handler(struct intel_display *display, u32 de_iir)
 {
 	enum pipe pipe;
 	u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG_IVB;
@@ -972,6 +972,53 @@ void ivb_display_irq_handler(struct intel_display *display, u32 de_iir)
 	}
 }
 
+void ilk_display_irq_master_disable(struct intel_display *display, u32 *de_ier, u32 *sde_ier)
+{
+	/* disable master interrupt before clearing iir  */
+	*de_ier = intel_de_read_fw(display, DEIER);
+	intel_de_write_fw(display, DEIER, *de_ier & ~DE_MASTER_IRQ_CONTROL);
+
+	/*
+	 * Disable south interrupts. We'll only write to SDEIIR once, so further
+	 * interrupts will be stored on its back queue, and then we'll be able
+	 * to process them after we restore SDEIER (as soon as we restore it,
+	 * we'll get an interrupt if SDEIIR still has something to process due
+	 * to its back queue).
+	 */
+	if (!HAS_PCH_NOP(display)) {
+		*sde_ier = intel_de_read_fw(display, SDEIER);
+		intel_de_write_fw(display, SDEIER, 0);
+	} else {
+		*sde_ier = 0;
+	}
+}
+
+void ilk_display_irq_master_enable(struct intel_display *display, u32 de_ier, u32 sde_ier)
+{
+	intel_de_write_fw(display, DEIER, de_ier);
+
+	if (sde_ier)
+		intel_de_write_fw(display, SDEIER, sde_ier);
+}
+
+bool ilk_display_irq_handler(struct intel_display *display)
+{
+	u32 de_iir;
+	bool handled = false;
+
+	de_iir = intel_de_read_fw(display, DEIIR);
+	if (de_iir) {
+		intel_de_write_fw(display, DEIIR, de_iir);
+		if (DISPLAY_VER(display) >= 7)
+			_ivb_display_irq_handler(display, de_iir);
+		else
+			_ilk_display_irq_handler(display, de_iir);
+		handled = true;
+	}
+
+	return handled;
+}
+
 static u32 gen8_de_port_aux_mask(struct intel_display *display)
 {
 	u32 mask;
@@ -1865,8 +1912,6 @@ void vlv_display_error_irq_handler(struct intel_display *display,
 
 static void _vlv_display_irq_reset(struct intel_display *display)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-
 	if (display->platform.cherryview)
 		intel_de_write(display, DPINVGTT, DPINVGTT_STATUS_MASK_CHV);
 	else
@@ -1881,7 +1926,7 @@ static void _vlv_display_irq_reset(struct intel_display *display)
 	i9xx_pipestat_irq_reset(display);
 
 	intel_display_irq_regs_reset(display, VLV_IRQ_REGS);
-	dev_priv->irq_mask = ~0u;
+	display->irq.vlv_imr_mask = ~0u;
 }
 
 void vlv_display_irq_reset(struct intel_display *display)
@@ -1902,6 +1947,22 @@ void i9xx_display_irq_reset(struct intel_display *display)
 	i9xx_pipestat_irq_reset(display);
 }
 
+u32 i9xx_display_irq_enable_mask(struct intel_display *display)
+{
+	u32 enable_mask;
+
+	enable_mask = I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+		I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
+
+	if (DISPLAY_VER(display) >= 3)
+		enable_mask |= I915_ASLE_INTERRUPT;
+
+	if (HAS_HOTPLUG(display))
+		enable_mask |= I915_DISPLAY_PORT_INTERRUPT;
+
+	return enable_mask;
+}
+
 void i915_display_irq_postinstall(struct intel_display *display)
 {
 	/*
@@ -1939,7 +2000,6 @@ static u32 vlv_error_mask(void)
 
 static void _vlv_display_irq_postinstall(struct intel_display *display)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	u32 pipestat_mask;
 	u32 enable_mask;
 	enum pipe pipe;
@@ -1973,11 +2033,11 @@ static void _vlv_display_irq_postinstall(struct intel_display *display)
 		enable_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT |
 			I915_LPE_PIPE_C_INTERRUPT;
 
-	drm_WARN_ON(display->drm, dev_priv->irq_mask != ~0u);
+	drm_WARN_ON(display->drm, display->irq.vlv_imr_mask != ~0u);
 
-	dev_priv->irq_mask = ~enable_mask;
+	display->irq.vlv_imr_mask = ~enable_mask;
 
-	intel_display_irq_regs_init(display, VLV_IRQ_REGS, dev_priv->irq_mask, enable_mask);
+	intel_display_irq_regs_init(display, VLV_IRQ_REGS, display->irq.vlv_imr_mask, enable_mask);
 }
 
 void vlv_display_irq_postinstall(struct intel_display *display)
@@ -1988,7 +2048,7 @@ void vlv_display_irq_postinstall(struct intel_display *display)
 	spin_unlock_irq(&display->irq.lock);
 }
 
-void ibx_display_irq_reset(struct intel_display *display)
+static void ibx_display_irq_reset(struct intel_display *display)
 {
 	if (HAS_PCH_NOP(display))
 		return;
@@ -1999,6 +2059,24 @@ void ibx_display_irq_reset(struct intel_display *display)
 		intel_de_write(display, SERR_INT, 0xffffffff);
 }
 
+void ilk_display_irq_reset(struct intel_display *display)
+{
+	struct intel_uncore *uncore = to_intel_uncore(display->drm);
+
+	gen2_irq_reset(uncore, DE_IRQ_REGS);
+	display->irq.ilk_de_imr_mask = ~0u;
+
+	if (DISPLAY_VER(display) == 7)
+		intel_de_write(display, GEN7_ERR_INT, 0xffffffff);
+
+	if (display->platform.haswell) {
+		intel_de_write(display, EDP_PSR_IMR, 0xffffffff);
+		intel_de_write(display, EDP_PSR_IIR, 0xffffffff);
+	}
+
+	ibx_display_irq_reset(display);
+}
+
 void gen8_display_irq_reset(struct intel_display *display)
 {
 	enum pipe pipe;
@@ -2088,8 +2166,8 @@ void gen8_irq_power_well_post_enable(struct intel_display *display,
 
 	for_each_pipe_masked(display, pipe, pipe_mask)
 		intel_display_irq_regs_init(display, GEN8_DE_PIPE_IRQ_REGS(pipe),
-					    display->irq.de_irq_mask[pipe],
-					    ~display->irq.de_irq_mask[pipe] | extra_ier);
+					    display->irq.de_pipe_imr_mask[pipe],
+					    ~display->irq.de_pipe_imr_mask[pipe] | extra_ier);
 
 	spin_unlock_irq(&display->irq.lock);
 }
@@ -2183,8 +2261,6 @@ out:
 
 void ilk_de_irq_postinstall(struct intel_display *display)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	u32 display_mask, extra_mask;
 
 	if (DISPLAY_VER(display) >= 7) {
@@ -2216,11 +2292,11 @@ void ilk_de_irq_postinstall(struct intel_display *display)
 	if (display->platform.ironlake && display->platform.mobile)
 		extra_mask |= DE_PCU_EVENT;
 
-	i915->irq_mask = ~display_mask;
+	display->irq.ilk_de_imr_mask = ~display_mask;
 
 	ibx_irq_postinstall(display);
 
-	intel_display_irq_regs_init(display, DE_IRQ_REGS, i915->irq_mask,
+	intel_display_irq_regs_init(display, DE_IRQ_REGS, display->irq.ilk_de_imr_mask,
 				    display_mask | extra_mask);
 }
 
@@ -2305,12 +2381,12 @@ void gen8_de_irq_postinstall(struct intel_display *display)
 	}
 
 	for_each_pipe(display, pipe) {
-		display->irq.de_irq_mask[pipe] = ~de_pipe_masked;
+		display->irq.de_pipe_imr_mask[pipe] = ~de_pipe_masked;
 
 		if (intel_display_power_is_enabled(display,
 						   POWER_DOMAIN_PIPE(pipe)))
 			intel_display_irq_regs_init(display, GEN8_DE_PIPE_IRQ_REGS(pipe),
-						    display->irq.de_irq_mask[pipe],
+						    display->irq.de_pipe_imr_mask[pipe],
 						    de_pipe_enables);
 	}
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.h b/drivers/gpu/drm/i915/display/intel_display_irq.h
index c66db3851da4..84acd31948cf 100644
--- a/drivers/gpu/drm/i915/display/intel_display_irq.h
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.h
@@ -47,8 +47,9 @@ void i965_disable_vblank(struct drm_crtc *crtc);
 void ilk_disable_vblank(struct drm_crtc *crtc);
 void bdw_disable_vblank(struct drm_crtc *crtc);
 
-void ivb_display_irq_handler(struct intel_display *display, u32 de_iir);
-void ilk_display_irq_handler(struct intel_display *display, u32 de_iir);
+void ilk_display_irq_master_disable(struct intel_display *display, u32 *de_ier, u32 *sde_ier);
+void ilk_display_irq_master_enable(struct intel_display *display, u32 de_ier, u32 sde_ier);
+bool ilk_display_irq_handler(struct intel_display *display);
 void gen8_de_irq_handler(struct intel_display *display, u32 master_ctl);
 void gen11_display_irq_handler(struct intel_display *display);
 
@@ -56,11 +57,12 @@ u32 gen11_gu_misc_irq_ack(struct intel_display *display, const u32 master_ctl);
 void gen11_gu_misc_irq_handler(struct intel_display *display, const u32 iir);
 
 void i9xx_display_irq_reset(struct intel_display *display);
-void ibx_display_irq_reset(struct intel_display *display);
+void ilk_display_irq_reset(struct intel_display *display);
 void vlv_display_irq_reset(struct intel_display *display);
 void gen8_display_irq_reset(struct intel_display *display);
 void gen11_display_irq_reset(struct intel_display *display);
 
+u32 i9xx_display_irq_enable_mask(struct intel_display *display);
 void i915_display_irq_postinstall(struct intel_display *display);
 void i965_display_irq_postinstall(struct intel_display *display);
 void vlv_display_irq_postinstall(struct intel_display *display);
diff --git a/drivers/gpu/drm/i915/display/intel_display_jiffies.h b/drivers/gpu/drm/i915/display/intel_display_jiffies.h
new file mode 100644
index 000000000000..c060c567e262
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_jiffies.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __INTEL_DISPLAY_JIFFIES_H__
+#define __INTEL_DISPLAY_JIFFIES_H__
+
+#include <linux/jiffies.h>
+
+static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
+{
+	unsigned long j = msecs_to_jiffies(m);
+
+	return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
+}
+
+/*
+ * If you need to wait X milliseconds between events A and B, but event B
+ * doesn't happen exactly after event A, you record the timestamp (jiffies) of
+ * when event A happened, then just before event B you call this function and
+ * pass the timestamp as the first argument, and X as the second argument.
+ */
+static inline void
+wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
+{
+	unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
+
+	/*
+	 * Don't re-read the value of "jiffies" every time since it may change
+	 * behind our back and break the math.
+	 */
+	tmp_jiffies = jiffies;
+	target_jiffies = timestamp_jiffies +
+			 msecs_to_jiffies_timeout(to_wait_ms);
+
+	if (time_after(target_jiffies, tmp_jiffies)) {
+		remaining_jiffies = target_jiffies - tmp_jiffies;
+		while (remaining_jiffies)
+			remaining_jiffies =
+			    schedule_timeout_uninterruptible(remaining_jiffies);
+	}
+}
+
+#endif /* __INTEL_DISPLAY_JIFFIES_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index da4babfd6bcb..ebe6225470d0 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -11,7 +11,6 @@
 #include "i915_drv.h"
 #include "i915_irq.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_backlight_regs.h"
 #include "intel_cdclk.h"
 #include "intel_clock_gating.h"
@@ -23,6 +22,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pch_refclk.h"
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_map.c b/drivers/gpu/drm/i915/display/intel_display_power_map.c
index 39b71fffa2cd..9b49952994ce 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_map.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_map.c
@@ -1516,7 +1516,11 @@ static const struct i915_power_well_desc xelpdp_power_wells_main[] = {
 		.ops = &hsw_power_well_ops,
 		.irq_pipe_mask = BIT(PIPE_D),
 		.has_fuses = true,
-	}, {
+	},
+};
+
+static const struct i915_power_well_desc xelpdp_power_wells_aux[] = {
+	{
 		.instances = &I915_PW_INSTANCES(
 			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
 			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
@@ -1534,6 +1538,7 @@ static const struct i915_power_well_desc_list xelpdp_power_wells[] = {
 	I915_PW_DESCRIPTORS(icl_power_wells_pw_1),
 	I915_PW_DESCRIPTORS(xelpd_power_wells_dc_off),
 	I915_PW_DESCRIPTORS(xelpdp_power_wells_main),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_aux),
 };
 
 I915_DECL_PW_DOMAINS(xe2lpd_pwdoms_pica_tc,
@@ -1584,6 +1589,7 @@ static const struct i915_power_well_desc_list xe2lpd_power_wells[] = {
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_dcoff),
 	I915_PW_DESCRIPTORS(xelpdp_power_wells_main),
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_aux),
 };
 
 /*
@@ -1677,16 +1683,6 @@ static const struct i915_power_well_desc xe3lpd_power_wells_main[] = {
 		.ops = &hsw_power_well_ops,
 		.irq_pipe_mask = BIT(PIPE_D),
 		.has_fuses = true,
-	}, {
-		.instances = &I915_PW_INSTANCES(
-			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
-			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
-			I915_PW("AUX_TC1", &xelpdp_pwdoms_aux_tc1, .xelpdp.aux_ch = AUX_CH_USBC1),
-			I915_PW("AUX_TC2", &xelpdp_pwdoms_aux_tc2, .xelpdp.aux_ch = AUX_CH_USBC2),
-			I915_PW("AUX_TC3", &xelpdp_pwdoms_aux_tc3, .xelpdp.aux_ch = AUX_CH_USBC3),
-			I915_PW("AUX_TC4", &xelpdp_pwdoms_aux_tc4, .xelpdp.aux_ch = AUX_CH_USBC4),
-		),
-		.ops = &xelpdp_aux_power_well_ops,
 	},
 };
 
@@ -1715,6 +1711,7 @@ static const struct i915_power_well_desc_list xe3lpd_power_wells[] = {
 	I915_PW_DESCRIPTORS(xe3lpd_power_wells_dcoff),
 	I915_PW_DESCRIPTORS(xe3lpd_power_wells_main),
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_aux),
 };
 
 static const struct i915_power_well_desc wcl_power_wells_main[] = {
@@ -1751,7 +1748,11 @@ static const struct i915_power_well_desc wcl_power_wells_main[] = {
 		.ops = &hsw_power_well_ops,
 		.irq_pipe_mask = BIT(PIPE_C),
 		.has_fuses = true,
-	}, {
+	},
+};
+
+static const struct i915_power_well_desc wcl_power_wells_aux[] = {
+	{
 		.instances = &I915_PW_INSTANCES(
 			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
 			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
@@ -1768,6 +1769,7 @@ static const struct i915_power_well_desc_list wcl_power_wells[] = {
 	I915_PW_DESCRIPTORS(xe3lpd_power_wells_dcoff),
 	I915_PW_DESCRIPTORS(wcl_power_wells_main),
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica),
+	I915_PW_DESCRIPTORS(wcl_power_wells_aux),
 };
 
 static void init_power_well_domains(const struct i915_power_well_instance *inst,
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 5e88b930f5aa..e1d45ef0eedd 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -1864,18 +1864,36 @@ static void xelpdp_aux_power_well_enable(struct intel_display *display,
 	 * expected to just wait a fixed 600us after raising the request
 	 * bit.
 	 */
-	usleep_range(600, 1200);
+	if (DISPLAY_VER(display) >= 35) {
+		if (intel_de_wait_for_set(display, XELPDP_DP_AUX_CH_CTL(display, aux_ch),
+					  XELPDP_DP_AUX_CH_CTL_POWER_STATUS, 2))
+			drm_warn(display->drm,
+				 "Timeout waiting for PHY %c AUX channel power to be up\n",
+				 phy_name(phy));
+	} else {
+		usleep_range(600, 1200);
+	}
 }
 
 static void xelpdp_aux_power_well_disable(struct intel_display *display,
 					  struct i915_power_well *power_well)
 {
 	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+	enum phy phy = icl_aux_pw_to_phy(display, power_well);
 
 	intel_de_rmw(display, XELPDP_DP_AUX_CH_CTL(display, aux_ch),
 		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
 		     0);
-	usleep_range(10, 30);
+
+	if (DISPLAY_VER(display) >= 35) {
+		if (intel_de_wait_for_clear(display, XELPDP_DP_AUX_CH_CTL(display, aux_ch),
+					    XELPDP_DP_AUX_CH_CTL_POWER_STATUS, 1))
+			drm_warn(display->drm,
+				 "Timeout waiting for PHY %c AUX channel to powerdown\n",
+				 phy_name(phy));
+	} else {
+		usleep_range(10, 30);
+	}
 }
 
 static bool xelpdp_aux_power_well_enabled(struct intel_display *display,
diff --git a/drivers/gpu/drm/i915/display/intel_display_rpm.c b/drivers/gpu/drm/i915/display/intel_display_rpm.c
index 56c4024201c1..0a331f89b4db 100644
--- a/drivers/gpu/drm/i915/display/intel_display_rpm.c
+++ b/drivers/gpu/drm/i915/display/intel_display_rpm.c
@@ -1,69 +1,62 @@
 // SPDX-License-Identifier: MIT
 /* Copyright © 2025 Intel Corporation */
 
-#include "i915_drv.h"
+#include <drm/intel/display_parent_interface.h>
+
 #include "intel_display_core.h"
 #include "intel_display_rpm.h"
-#include "intel_runtime_pm.h"
-
-static struct intel_runtime_pm *display_to_rpm(struct intel_display *display)
-{
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
-	return &i915->runtime_pm;
-}
 
 struct ref_tracker *intel_display_rpm_get_raw(struct intel_display *display)
 {
-	return intel_runtime_pm_get_raw(display_to_rpm(display));
+	return display->parent->rpm->get_raw(display->drm);
 }
 
 void intel_display_rpm_put_raw(struct intel_display *display, struct ref_tracker *wakeref)
 {
-	intel_runtime_pm_put_raw(display_to_rpm(display), wakeref);
+	display->parent->rpm->put_raw(display->drm, wakeref);
 }
 
 struct ref_tracker *intel_display_rpm_get(struct intel_display *display)
 {
-	return intel_runtime_pm_get(display_to_rpm(display));
+	return display->parent->rpm->get(display->drm);
 }
 
 struct ref_tracker *intel_display_rpm_get_if_in_use(struct intel_display *display)
 {
-	return intel_runtime_pm_get_if_in_use(display_to_rpm(display));
+	return display->parent->rpm->get_if_in_use(display->drm);
 }
 
 struct ref_tracker *intel_display_rpm_get_noresume(struct intel_display *display)
 {
-	return intel_runtime_pm_get_noresume(display_to_rpm(display));
+	return display->parent->rpm->get_noresume(display->drm);
 }
 
 void intel_display_rpm_put(struct intel_display *display, struct ref_tracker *wakeref)
 {
-	intel_runtime_pm_put(display_to_rpm(display), wakeref);
+	display->parent->rpm->put(display->drm, wakeref);
 }
 
 void intel_display_rpm_put_unchecked(struct intel_display *display)
 {
-	intel_runtime_pm_put_unchecked(display_to_rpm(display));
+	display->parent->rpm->put_unchecked(display->drm);
 }
 
 bool intel_display_rpm_suspended(struct intel_display *display)
 {
-	return intel_runtime_pm_suspended(display_to_rpm(display));
+	return display->parent->rpm->suspended(display->drm);
 }
 
 void assert_display_rpm_held(struct intel_display *display)
 {
-	assert_rpm_wakelock_held(display_to_rpm(display));
+	display->parent->rpm->assert_held(display->drm);
 }
 
 void intel_display_rpm_assert_block(struct intel_display *display)
 {
-	disable_rpm_wakeref_asserts(display_to_rpm(display));
+	display->parent->rpm->assert_block(display->drm);
 }
 
 void intel_display_rpm_assert_unblock(struct intel_display *display)
 {
-	enable_rpm_wakeref_asserts(display_to_rpm(display));
+	display->parent->rpm->assert_unblock(display->drm);
 }
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 358ab922d7a7..00600134bda0 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -551,7 +551,16 @@ struct intel_connector {
 		u8 fec_capability;
 
 		u8 dsc_hblank_expansion_quirk:1;
+		u8 dsc_throughput_quirk:1;
 		u8 dsc_decompression_enabled:1;
+
+		struct {
+			struct {
+				int rgb_yuv444;
+				int yuv422_420;
+			} overall_throughput;
+			int max_line_width;
+		} dsc_branch_caps;
 	} dp;
 
 	struct {
@@ -946,6 +955,26 @@ struct intel_csc_matrix {
 	u16 postoff[3];
 };
 
+enum intel_panel_replay_dsc_support {
+	INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED,
+	INTEL_DP_PANEL_REPLAY_DSC_FULL_FRAME_ONLY,
+	INTEL_DP_PANEL_REPLAY_DSC_SELECTIVE_UPDATE,
+};
+
+struct scaler_filter_coeff {
+	u16 sign;
+	u16 exp;
+	u16 mantissa;
+};
+
+struct intel_casf {
+	#define SCALER_FILTER_NUM_TAPS 7
+	struct scaler_filter_coeff coeff[SCALER_FILTER_NUM_TAPS];
+	u8 strength;
+	u8 win_size;
+	bool casf_enable;
+};
+
 struct intel_crtc_state {
 	/*
 	 * uapi (drm) state. This is the software state shown to userspace.
@@ -982,6 +1011,7 @@ struct intel_crtc_state {
 		struct drm_property_blob *degamma_lut, *gamma_lut, *ctm;
 		struct drm_display_mode mode, pipe_mode, adjusted_mode;
 		enum drm_scaling_filter scaling_filter;
+		struct intel_casf casf_params;
 	} hw;
 
 	/* actual state of LUTs */
@@ -1124,9 +1154,12 @@ struct intel_crtc_state {
 	bool has_panel_replay;
 	bool wm_level_disabled;
 	bool pkg_c_latency_used;
+	/* Only used for state verification. */
+	enum intel_panel_replay_dsc_support panel_replay_dsc_support;
 	u32 dc3co_exitline;
 	u16 su_y_granularity;
 	u8 active_non_psr_pipes;
+	const char *no_psr_reason;
 
 	/*
 	 * Frequency the dpll for the port should run at. Differs from the
@@ -1183,7 +1216,9 @@ struct intel_crtc_state {
 
 	struct intel_crtc_wm_state wm;
 
-	int min_cdclk[I915_MAX_PLANES];
+	int min_cdclk;
+
+	int plane_min_cdclk[I915_MAX_PLANES];
 
 	/* for packed/planar CbCr */
 	u32 data_rate[I915_MAX_PLANES];
@@ -1268,6 +1303,8 @@ struct intel_crtc_state {
 
 	/* Display Stream compression state */
 	struct {
+		/* Only used for state computation, not read out from the HW. */
+		bool compression_enabled_on_link;
 		bool compression_enable;
 		int num_streams;
 		/* Compressed Bpp in U6.4 format (first 4 bits for fractional part) */
@@ -1341,6 +1378,20 @@ struct intel_crtc_state {
 
 	/* LOBF flag */
 	bool has_lobf;
+
+	/* W2 window or 'set context latency' lines */
+	u16 set_context_latency;
+
+	struct {
+		u8 io_wake_lines;
+		u8 fast_wake_lines;
+
+		/* LNL and beyond */
+		u8 check_entry_lines;
+		u8 aux_less_wake_lines;
+		u8 silence_period_sym_clocks;
+		u8 lfps_half_cycle_num_of_syms;
+	} alpm_state;
 };
 
 enum intel_pipe_crc_source {
@@ -1679,16 +1730,22 @@ struct intel_psr {
 	bool source_panel_replay_support;
 	bool sink_panel_replay_support;
 	bool sink_panel_replay_su_support;
+	enum intel_panel_replay_dsc_support sink_panel_replay_dsc_support;
 	bool panel_replay_enabled;
 	u32 dc3co_exitline;
 	u32 dc3co_exit_delay;
 	struct delayed_work dc3co_work;
 	u8 entry_setup_frames;
 
+	u8 io_wake_lines;
+	u8 fast_wake_lines;
+
 	bool link_ok;
 	bool pkg_c_latency_used;
 
 	u8 active_non_psr_pipes;
+
+	const char *no_psr_reason;
 };
 
 struct intel_dp {
@@ -1844,19 +1901,12 @@ struct intel_dp {
 	bool colorimetry_support;
 
 	struct {
-		u8 io_wake_lines;
-		u8 fast_wake_lines;
 		enum transcoder transcoder;
 		struct mutex lock;
 
-		/* LNL and beyond */
-		u8 check_entry_lines;
-		u8 aux_less_wake_lines;
-		u8 silence_period_sym_clocks;
-		u8 lfps_half_cycle_num_of_syms;
 		bool lobf_disable_debug;
 		bool sink_alpm_error;
-	} alpm_parameters;
+	} alpm;
 
 	u8 alpm_dpcd;
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_utils.c b/drivers/gpu/drm/i915/display/intel_display_utils.c
new file mode 100644
index 000000000000..04d010f7c23e
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_utils.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include <linux/device.h>
+
+#include <drm/drm_device.h>
+
+#ifdef CONFIG_X86
+#include <asm/hypervisor.h>
+#endif
+
+#include "intel_display_core.h"
+#include "intel_display_utils.h"
+
+bool intel_display_run_as_guest(struct intel_display *display)
+{
+#if IS_ENABLED(CONFIG_X86)
+	return !hypervisor_is_type(X86_HYPER_NATIVE);
+#else
+	/* Not supported yet */
+	return false;
+#endif
+}
+
+bool intel_display_vtd_active(struct intel_display *display)
+{
+	if (device_iommu_mapped(display->drm->dev))
+		return true;
+
+	/* Running as a guest, we assume the host is enforcing VT'd */
+	return intel_display_run_as_guest(display);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_display_utils.h b/drivers/gpu/drm/i915/display/intel_display_utils.h
new file mode 100644
index 000000000000..2a18f160320c
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_utils.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __INTEL_DISPLAY_UTILS__
+#define __INTEL_DISPLAY_UTILS__
+
+#include <linux/bug.h>
+#include <linux/types.h>
+
+struct intel_display;
+
+#ifndef MISSING_CASE
+#define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
+			     __stringify(x), (long)(x))
+#endif
+
+#ifndef fetch_and_zero
+#define fetch_and_zero(ptr) ({						\
+	typeof(*ptr) __T = *(ptr);					\
+	*(ptr) = (typeof(*ptr))0;					\
+	__T;								\
+})
+#endif
+
+#define KHz(x) (1000 * (x))
+#define MHz(x) KHz(1000 * (x))
+
+bool intel_display_run_as_guest(struct intel_display *display);
+bool intel_display_vtd_active(struct intel_display *display);
+
+#endif /* __INTEL_DISPLAY_UTILS__ */
diff --git a/drivers/gpu/drm/i915/display/intel_display_wa.c b/drivers/gpu/drm/i915/display/intel_display_wa.c
index 31cd2c9cd488..c528aaa679ca 100644
--- a/drivers/gpu/drm/i915/display/intel_display_wa.c
+++ b/drivers/gpu/drm/i915/display/intel_display_wa.c
@@ -67,6 +67,8 @@ bool __intel_display_wa(struct intel_display *display, enum intel_display_wa wa,
 		return intel_display_needs_wa_16025573575(display);
 	case INTEL_DISPLAY_WA_14011503117:
 		return DISPLAY_VER(display) == 13;
+	case INTEL_DISPLAY_WA_22014263786:
+		return IS_DISPLAY_VERx100(display, 1100, 1400);
 	default:
 		drm_WARN(display->drm, 1, "Missing Wa number: %s\n", name);
 		break;
diff --git a/drivers/gpu/drm/i915/display/intel_display_wa.h b/drivers/gpu/drm/i915/display/intel_display_wa.h
index abc1df83f066..3644e8e2b724 100644
--- a/drivers/gpu/drm/i915/display/intel_display_wa.h
+++ b/drivers/gpu/drm/i915/display/intel_display_wa.h
@@ -25,6 +25,7 @@ enum intel_display_wa {
 	INTEL_DISPLAY_WA_16023588340,
 	INTEL_DISPLAY_WA_16025573575,
 	INTEL_DISPLAY_WA_14011503117,
+	INTEL_DISPLAY_WA_22014263786,
 };
 
 bool __intel_display_wa(struct intel_display *display, enum intel_display_wa wa, const char *name);
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 77a0199f9ea5..0bddb20a7c86 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -30,13 +30,13 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_dmc_regs.h"
 #include "intel_flipq.h"
@@ -127,6 +127,9 @@ static bool dmc_firmware_param_disabled(struct intel_display *display)
 #define DISPLAY_VER13_DMC_MAX_FW_SIZE	0x20000
 #define DISPLAY_VER12_DMC_MAX_FW_SIZE	ICL_DMC_MAX_FW_SIZE
 
+#define XE3LPD_3002_DMC_PATH		DMC_PATH(xe3lpd_3002)
+MODULE_FIRMWARE(XE3LPD_3002_DMC_PATH);
+
 #define XE3LPD_DMC_PATH			DMC_PATH(xe3lpd)
 MODULE_FIRMWARE(XE3LPD_DMC_PATH);
 
@@ -183,9 +186,10 @@ static const char *dmc_firmware_default(struct intel_display *display, u32 *size
 {
 	const char *fw_path = NULL;
 	u32 max_fw_size = 0;
-
-	if (DISPLAY_VERx100(display) == 3002 ||
-	    DISPLAY_VERx100(display) == 3000) {
+	if (DISPLAY_VERx100(display) == 3002) {
+		fw_path = XE3LPD_3002_DMC_PATH;
+		max_fw_size = XE2LPD_DMC_MAX_FW_SIZE;
+	} else if (DISPLAY_VERx100(display) == 3000) {
 		fw_path = XE3LPD_DMC_PATH;
 		max_fw_size = XE2LPD_DMC_MAX_FW_SIZE;
 	} else if (DISPLAY_VERx100(display) == 2000) {
@@ -509,10 +513,16 @@ static u32 pipedmc_interrupt_mask(struct intel_display *display)
 		PIPEDMC_ATS_FAULT;
 }
 
-static u32 dmc_evt_ctl_disable(void)
+static u32 dmc_evt_ctl_disable(u32 dmc_evt_ctl)
 {
-	return REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
-			      DMC_EVT_CTL_TYPE_EDGE_0_1) |
+	/*
+	 * DMC_EVT_CTL_ENABLE cannot be cleared once set. Always
+	 * configure it based on the original event definition to
+	 * avoid mismatches in assert_dmc_loaded().
+	 */
+	return (dmc_evt_ctl & DMC_EVT_CTL_ENABLE) |
+		REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
+			       DMC_EVT_CTL_TYPE_EDGE_0_1) |
 		REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
 			       DMC_EVENT_FALSE);
 }
@@ -546,6 +556,51 @@ static bool is_event_handler(struct intel_display *display,
 		REG_FIELD_GET(DMC_EVT_CTL_EVENT_ID_MASK, data) == event_id;
 }
 
+static bool fixup_dmc_evt(struct intel_display *display,
+			  enum intel_dmc_id dmc_id,
+			  i915_reg_t reg_ctl, u32 *data_ctl,
+			  i915_reg_t reg_htp, u32 *data_htp)
+{
+	if (!is_dmc_evt_ctl_reg(display, dmc_id, reg_ctl))
+		return false;
+
+	if (!is_dmc_evt_htp_reg(display, dmc_id, reg_htp))
+		return false;
+
+	/* make sure reg_ctl and reg_htp are for the same event */
+	if (i915_mmio_reg_offset(reg_ctl) - i915_mmio_reg_offset(DMC_EVT_CTL(display, dmc_id, 0)) !=
+	    i915_mmio_reg_offset(reg_htp) - i915_mmio_reg_offset(DMC_EVT_HTP(display, dmc_id, 0)))
+		return false;
+
+	/*
+	 * On ADL-S the HRR event handler is not restored after DC6.
+	 * Clear it to zero from the beginning to avoid mismatches later.
+	 */
+	if (display->platform.alderlake_s && dmc_id == DMC_FW_MAIN &&
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg_ctl, *data_ctl)) {
+		*data_ctl = 0;
+		*data_htp = 0;
+		return true;
+	}
+
+	/*
+	 * TGL/ADL-S DMC firmware incorrectly uses the undelayed vblank
+	 * event for the HRR handler, when it should be using the delayed
+	 * vblank event instead. Fixed firmware was never released
+	 * so the Windows driver just hacks around it by overriding
+	 * the event ID. Do the same.
+	 */
+	if ((display->platform.tigerlake || display->platform.alderlake_s) &&
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg_ctl, *data_ctl)) {
+		*data_ctl &= ~DMC_EVT_CTL_EVENT_ID_MASK;
+		*data_ctl |=  REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
+					     MAINDMC_EVENT_VBLANK_DELAYED_A);
+		return true;
+	}
+
+	return false;
+}
+
 static bool disable_dmc_evt(struct intel_display *display,
 			    enum intel_dmc_id dmc_id,
 			    i915_reg_t reg, u32 data)
@@ -564,7 +619,7 @@ static bool disable_dmc_evt(struct intel_display *display,
 
 	/* also disable the HRR event on the main DMC on TGL/ADLS */
 	if ((display->platform.tigerlake || display->platform.alderlake_s) &&
-	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg, data))
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_DELAYED_A, reg, data))
 		return true;
 
 	return false;
@@ -577,7 +632,7 @@ static u32 dmc_mmiodata(struct intel_display *display,
 	if (disable_dmc_evt(display, dmc_id,
 			    dmc->dmc_info[dmc_id].mmioaddr[i],
 			    dmc->dmc_info[dmc_id].mmiodata[i]))
-		return dmc_evt_ctl_disable();
+		return dmc_evt_ctl_disable(dmc->dmc_info[dmc_id].mmiodata[i]);
 	else
 		return dmc->dmc_info[dmc_id].mmiodata[i];
 }
@@ -636,12 +691,6 @@ static void assert_dmc_loaded(struct intel_display *display,
 		found = intel_de_read(display, reg);
 		expected = dmc_mmiodata(display, dmc, dmc_id, i);
 
-		/* once set DMC_EVT_CTL_ENABLE can't be cleared :/ */
-		if (is_dmc_evt_ctl_reg(display, dmc_id, reg)) {
-			found &= ~DMC_EVT_CTL_ENABLE;
-			expected &= ~DMC_EVT_CTL_ENABLE;
-		}
-
 		drm_WARN(display->drm, found != expected,
 			 "DMC %d mmio[%d]/0x%x incorrect (expected 0x%x, current 0x%x)\n",
 			 dmc_id, i, i915_mmio_reg_offset(reg), expected, found);
@@ -794,7 +843,7 @@ static void dmc_configure_event(struct intel_display *display,
 		if (!is_event_handler(display, dmc_id, event_id, reg, data))
 			continue;
 
-		intel_de_write(display, reg, enable ? data : dmc_evt_ctl_disable());
+		intel_de_write(display, reg, enable ? data : dmc_evt_ctl_disable(data));
 		num_handlers++;
 	}
 
@@ -1064,9 +1113,32 @@ static u32 parse_dmc_fw_header(struct intel_dmc *dmc,
 	for (i = 0; i < mmio_count; i++) {
 		dmc_info->mmioaddr[i] = _MMIO(mmioaddr[i]);
 		dmc_info->mmiodata[i] = mmiodata[i];
+	}
 
+	for (i = 0; i < mmio_count - 1; i++) {
+		u32 orig_mmiodata[2] = {
+			dmc_info->mmiodata[i],
+			dmc_info->mmiodata[i+1],
+		};
+
+		if (!fixup_dmc_evt(display, dmc_id,
+				   dmc_info->mmioaddr[i], &dmc_info->mmiodata[i],
+				   dmc_info->mmioaddr[i+1], &dmc_info->mmiodata[i+1]))
+			continue;
+
+		drm_dbg_kms(display->drm,
+			    " mmio[%d]: 0x%x = 0x%x->0x%x (EVT_CTL)\n",
+			    i, i915_mmio_reg_offset(dmc_info->mmioaddr[i]),
+			    orig_mmiodata[0], dmc_info->mmiodata[i]);
+		drm_dbg_kms(display->drm,
+			    " mmio[%d]: 0x%x = 0x%x->0x%x (EVT_HTP)\n",
+			    i+1, i915_mmio_reg_offset(dmc_info->mmioaddr[i+1]),
+			    orig_mmiodata[1], dmc_info->mmiodata[i+1]);
+	}
+
+	for (i = 0; i < mmio_count; i++) {
 		drm_dbg_kms(display->drm, " mmio[%d]: 0x%x = 0x%x%s%s\n",
-			    i, mmioaddr[i], mmiodata[i],
+			    i, i915_mmio_reg_offset(dmc_info->mmioaddr[i]), dmc_info->mmiodata[i],
 			    is_dmc_evt_ctl_reg(display, dmc_id, dmc_info->mmioaddr[i]) ? " (EVT_CTL)" :
 			    is_dmc_evt_htp_reg(display, dmc_id, dmc_info->mmioaddr[i]) ? " (EVT_HTP)" : "",
 			    disable_dmc_evt(display, dmc_id, dmc_info->mmioaddr[i],
@@ -1141,7 +1213,7 @@ parse_dmc_fw_package(struct intel_dmc *dmc,
 	}
 
 	num_entries = package_header->num_entries;
-	if (WARN_ON(package_header->num_entries > max_entries))
+	if (WARN_ON(num_entries > max_entries))
 		num_entries = max_entries;
 
 	fw_info = (const struct intel_fw_info *)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 2eab591a8ef5..0ec82fcbcf48 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -51,7 +51,6 @@
 #include <drm/drm_probe_helper.h>
 
 #include "g4x_dp.h"
-#include "i915_utils.h"
 #include "intel_alpm.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
@@ -64,6 +63,8 @@
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_driver.h"
+#include "intel_display_jiffies.h"
+#include "intel_display_utils.h"
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
@@ -93,14 +94,10 @@
 #include "intel_psr.h"
 #include "intel_quirks.h"
 #include "intel_tc.h"
+#include "intel_vblank.h"
 #include "intel_vdsc.h"
 #include "intel_vrr.h"
 
-/* DP DSC throughput values used for slice count calculations KPixels/s */
-#define DP_DSC_PEAK_PIXEL_RATE			2720000
-#define DP_DSC_MAX_ENC_THROUGHPUT_0		340000
-#define DP_DSC_MAX_ENC_THROUGHPUT_1		400000
-
 /* Max DSC line buffer depth supported by HW. */
 #define INTEL_DP_DSC_MAX_LINE_BUF_DEPTH		13
 
@@ -1018,13 +1015,43 @@ u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
 	struct intel_display *display = to_intel_display(connector);
 	u8 min_slice_count, i;
 	int max_slice_width;
+	int tp_rgb_yuv444;
+	int tp_yuv422_420;
 
-	if (mode_clock <= DP_DSC_PEAK_PIXEL_RATE)
-		min_slice_count = DIV_ROUND_UP(mode_clock,
-					       DP_DSC_MAX_ENC_THROUGHPUT_0);
-	else
-		min_slice_count = DIV_ROUND_UP(mode_clock,
-					       DP_DSC_MAX_ENC_THROUGHPUT_1);
+	/*
+	 * TODO: Use the throughput value specific to the actual RGB/YUV
+	 * format of the output.
+	 * The RGB/YUV444 throughput value should be always either equal
+	 * or smaller than the YUV422/420 value, but let's not depend on
+	 * this assumption.
+	 */
+	if (mode_clock > max(connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444,
+			     connector->dp.dsc_branch_caps.overall_throughput.yuv422_420))
+		return 0;
+
+	if (mode_hdisplay > connector->dp.dsc_branch_caps.max_line_width)
+		return 0;
+
+	/*
+	 * TODO: Pass the total pixel rate of all the streams transferred to
+	 * an MST tiled display, calculate the total slice count for all tiles
+	 * from this and the per-tile slice count from the total slice count.
+	 */
+	tp_rgb_yuv444 = drm_dp_dsc_sink_max_slice_throughput(connector->dp.dsc_dpcd,
+							     mode_clock, true);
+	tp_yuv422_420 = drm_dp_dsc_sink_max_slice_throughput(connector->dp.dsc_dpcd,
+							     mode_clock, false);
+
+	/*
+	 * TODO: Use the throughput value specific to the actual RGB/YUV
+	 * format of the output.
+	 * For now use the smaller of these, which is ok, potentially
+	 * resulting in a higher than required minimum slice count.
+	 * The RGB/YUV444 throughput value should be always either equal
+	 * or smaller than the YUV422/420 value, but let's not depend on
+	 * this assumption.
+	 */
+	min_slice_count = DIV_ROUND_UP(mode_clock, min(tp_rgb_yuv444, tp_yuv422_420));
 
 	/*
 	 * Due to some DSC engine BW limitations, we need to enable second
@@ -2340,24 +2367,26 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
 	return 0;
 }
 
-static void intel_dp_fec_compute_config(struct intel_dp *intel_dp,
-					struct intel_crtc_state *crtc_state)
+/*
+ * Return whether FEC must be enabled for 8b10b SST or MST links. On 128b132b
+ * links FEC is always enabled implicitly by the HW, so this function returns
+ * false for that case.
+ */
+bool intel_dp_needs_8b10b_fec(const struct intel_crtc_state *crtc_state,
+			      bool dsc_enabled_on_crtc)
 {
-	if (crtc_state->fec_enable)
-		return;
+	if (intel_dp_is_uhbr(crtc_state))
+		return false;
 
 	/*
 	 * Though eDP v1.5 supports FEC with DSC, unlike DP, it is optional.
 	 * Since, FEC is a bandwidth overhead, continue to not enable it for
 	 * eDP. Until, there is a good reason to do so.
 	 */
-	if (intel_dp_is_edp(intel_dp))
-		return;
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return false;
 
-	if (intel_dp_is_uhbr(crtc_state))
-		return;
-
-	crtc_state->fec_enable = true;
+	return dsc_enabled_on_crtc || intel_dsc_enabled_on_link(crtc_state);
 }
 
 int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
@@ -2375,7 +2404,11 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 	bool is_mst = intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DP_MST);
 	int ret;
 
-	intel_dp_fec_compute_config(intel_dp, pipe_config);
+	/*
+	 * FIXME: set the FEC enabled state once pipe_config->port_clock is
+	 * already known, so the UHBR/non-UHBR mode can be determined.
+	 */
+	pipe_config->fec_enable = intel_dp_needs_8b10b_fec(pipe_config, true);
 
 	if (!intel_dp_dsc_supports_format(connector, pipe_config->output_format))
 		return -EINVAL;
@@ -2450,7 +2483,8 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 		return ret;
 	}
 
-	pipe_config->dsc.compression_enable = true;
+	intel_dsc_enable_on_crtc(pipe_config);
+
 	drm_dbg_kms(display->drm, "DP DSC computed with Input Bpp = %d "
 		    "Compressed Bpp = " FXP_Q4_FMT " Slice Count = %d\n",
 		    pipe_config->pipe_bpp,
@@ -2460,6 +2494,40 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 	return 0;
 }
 
+static int
+dsc_throughput_quirk_max_bpp_x16(const struct intel_connector *connector,
+				 const struct intel_crtc_state *crtc_state)
+{
+	const struct drm_display_mode *adjusted_mode =
+		&crtc_state->hw.adjusted_mode;
+
+	if (!connector->dp.dsc_throughput_quirk)
+		return INT_MAX;
+
+	/*
+	 * Synaptics Panamera branch devices have a problem decompressing a
+	 * stream with a compressed link-bpp higher than 12, if the pixel
+	 * clock is higher than ~50 % of the maximum overall throughput
+	 * reported by the branch device. Work around this by limiting the
+	 * maximum link bpp for such pixel clocks.
+	 *
+	 * TODO: Use the throughput value specific to the actual RGB/YUV
+	 * format of the output, after determining the pixel clock limit for
+	 * YUV modes. For now use the smaller of the throughput values, which
+	 * may result in limiting the link-bpp value already at a lower than
+	 * required mode clock in case of native YUV422/420 output formats.
+	 * The RGB/YUV444 throughput value should be always either equal or
+	 * smaller than the YUV422/420 value, but let's not depend on this
+	 * assumption.
+	 */
+	if (adjusted_mode->crtc_clock <
+	    min(connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444,
+		connector->dp.dsc_branch_caps.overall_throughput.yuv422_420) / 2)
+		return INT_MAX;
+
+	return fxp_q4_from_int(12);
+}
+
 /*
  * Calculate the output link min, max bpp values in limits based on the pipe bpp
  * range, crtc_state and dsc mode. Return true on success.
@@ -2491,6 +2559,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
 	} else {
 		int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
 		int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
+		int throughput_max_bpp_x16;
 
 		dsc_src_min_bpp = intel_dp_dsc_min_src_compressed_bpp();
 		dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(crtc_state);
@@ -2505,6 +2574,19 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
 			      min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
 
 		max_link_bpp_x16 = min(max_link_bpp_x16, fxp_q4_from_int(dsc_max_bpp));
+
+		throughput_max_bpp_x16 = dsc_throughput_quirk_max_bpp_x16(connector, crtc_state);
+		throughput_max_bpp_x16 = clamp(throughput_max_bpp_x16,
+					       limits->link.min_bpp_x16, max_link_bpp_x16);
+		if (throughput_max_bpp_x16 < max_link_bpp_x16) {
+			max_link_bpp_x16 = throughput_max_bpp_x16;
+
+			drm_dbg_kms(display->drm,
+				    "[CRTC:%d:%s][CONNECTOR:%d:%s] Decreasing link max bpp to " FXP_Q4_FMT " due to DSC throughput quirk\n",
+				    crtc->base.base.id, crtc->base.name,
+				    connector->base.base.id, connector->base.name,
+				    FXP_Q4_ARGS(max_link_bpp_x16));
+		}
 	}
 
 	limits->link.max_bpp_x16 = max_link_bpp_x16;
@@ -4169,7 +4251,36 @@ static void intel_dp_read_dsc_dpcd(struct drm_dp_aux *aux,
 		    dsc_dpcd);
 }
 
-void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector)
+static void init_dsc_overall_throughput_limits(struct intel_connector *connector, bool is_branch)
+{
+	u8 branch_caps[DP_DSC_BRANCH_CAP_SIZE];
+	int line_width;
+
+	connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444 = INT_MAX;
+	connector->dp.dsc_branch_caps.overall_throughput.yuv422_420 = INT_MAX;
+	connector->dp.dsc_branch_caps.max_line_width = INT_MAX;
+
+	if (!is_branch)
+		return;
+
+	if (drm_dp_dpcd_read_data(connector->dp.dsc_decompression_aux,
+				  DP_DSC_BRANCH_OVERALL_THROUGHPUT_0, branch_caps,
+				  sizeof(branch_caps)) != 0)
+		return;
+
+	connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444 =
+		drm_dp_dsc_branch_max_overall_throughput(branch_caps, true) ? : INT_MAX;
+
+	connector->dp.dsc_branch_caps.overall_throughput.yuv422_420 =
+		drm_dp_dsc_branch_max_overall_throughput(branch_caps, false) ? : INT_MAX;
+
+	line_width = drm_dp_dsc_branch_max_line_width(branch_caps);
+	connector->dp.dsc_branch_caps.max_line_width = line_width > 0 ? line_width : INT_MAX;
+}
+
+void intel_dp_get_dsc_sink_cap(u8 dpcd_rev,
+			       const struct drm_dp_desc *desc, bool is_branch,
+			       struct intel_connector *connector)
 {
 	struct intel_display *display = to_intel_display(connector);
 
@@ -4182,6 +4293,9 @@ void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector)
 	/* Clear fec_capable to avoid using stale values */
 	connector->dp.fec_capability = 0;
 
+	memset(&connector->dp.dsc_branch_caps, 0, sizeof(connector->dp.dsc_branch_caps));
+	connector->dp.dsc_throughput_quirk = false;
+
 	if (dpcd_rev < DP_DPCD_REV_14)
 		return;
 
@@ -4196,6 +4310,19 @@ void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector)
 
 	drm_dbg_kms(display->drm, "FEC CAPABILITY: %x\n",
 		    connector->dp.fec_capability);
+
+	if (!(connector->dp.dsc_dpcd[0] & DP_DSC_DECOMPRESSION_IS_SUPPORTED))
+		return;
+
+	init_dsc_overall_throughput_limits(connector, is_branch);
+
+	/*
+	 * TODO: Move the HW rev check as well to the DRM core quirk table if
+	 * that's required after clarifying the list of affected devices.
+	 */
+	if (drm_dp_has_quirk(desc, DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) &&
+	    desc->ident.hw_rev == 0x10)
+		connector->dp.dsc_throughput_quirk = true;
 }
 
 static void intel_edp_get_dsc_sink_cap(u8 edp_dpcd_rev, struct intel_connector *connector)
@@ -4204,6 +4331,9 @@ static void intel_edp_get_dsc_sink_cap(u8 edp_dpcd_rev, struct intel_connector *
 		return;
 
 	intel_dp_read_dsc_dpcd(connector->dp.dsc_decompression_aux, connector->dp.dsc_dpcd);
+
+	if (connector->dp.dsc_dpcd[0] & DP_DSC_DECOMPRESSION_IS_SUPPORTED)
+		init_dsc_overall_throughput_limits(connector, false);
 }
 
 static void
@@ -4220,6 +4350,7 @@ intel_dp_detect_dsc_caps(struct intel_dp *intel_dp, struct intel_connector *conn
 					   connector);
 	else
 		intel_dp_get_dsc_sink_cap(intel_dp->dpcd[DP_DPCD_REV],
+					  &intel_dp->desc, drm_dp_is_branch(intel_dp->dpcd),
 					  connector);
 }
 
@@ -5553,7 +5684,7 @@ intel_dp_short_pulse(struct intel_dp *intel_dp)
 
 	if (intel_alpm_get_error(intel_dp)) {
 		intel_alpm_disable(intel_dp);
-		intel_dp->alpm_parameters.sink_alpm_error = true;
+		intel_dp->alpm.sink_alpm_error = true;
 	}
 
 	if (intel_dp_test_short_pulse(intel_dp))
@@ -5921,6 +6052,8 @@ intel_dp_detect(struct drm_connector *_connector,
 		memset(connector->dp.dsc_dpcd, 0, sizeof(connector->dp.dsc_dpcd));
 		intel_dp->psr.sink_panel_replay_support = false;
 		intel_dp->psr.sink_panel_replay_su_support = false;
+		intel_dp->psr.sink_panel_replay_dsc_support =
+			INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED;
 
 		intel_dp_mst_disconnect(intel_dp);
 
@@ -6857,3 +6990,81 @@ void intel_dp_mst_resume(struct intel_display *display)
 		}
 	}
 }
+
+static
+int intel_dp_sdp_compute_config_late(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int guardband = intel_crtc_vblank_length(crtc_state);
+	int min_sdp_guardband = intel_dp_sdp_min_guardband(crtc_state, false);
+
+	if (guardband < min_sdp_guardband) {
+		drm_dbg_kms(display->drm, "guardband %d < min sdp guardband %d\n",
+			    guardband, min_sdp_guardband);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int intel_dp_compute_config_late(struct intel_encoder *encoder,
+				 struct intel_crtc_state *crtc_state,
+				 struct drm_connector_state *conn_state)
+{
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	int ret;
+
+	intel_psr_compute_config_late(intel_dp, crtc_state);
+
+	ret = intel_dp_sdp_compute_config_late(crtc_state);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static
+int intel_dp_get_lines_for_sdp(const struct intel_crtc_state *crtc_state, u32 type)
+{
+	switch (type) {
+	case DP_SDP_VSC_EXT_VESA:
+	case DP_SDP_VSC_EXT_CEA:
+		return 10;
+	case HDMI_PACKET_TYPE_GAMUT_METADATA:
+		return 8;
+	case DP_SDP_PPS:
+		return 7;
+	case DP_SDP_ADAPTIVE_SYNC:
+		return crtc_state->vrr.vsync_start + 1;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state,
+			       bool assume_all_enabled)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int sdp_guardband = 0;
+
+	if (assume_all_enabled ||
+	    crtc_state->infoframes.enable &
+	    intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA))
+		sdp_guardband = max(sdp_guardband,
+				    intel_dp_get_lines_for_sdp(crtc_state,
+							       HDMI_PACKET_TYPE_GAMUT_METADATA));
+
+	if (assume_all_enabled ||
+	    crtc_state->dsc.compression_enable)
+		sdp_guardband = max(sdp_guardband,
+				    intel_dp_get_lines_for_sdp(crtc_state, DP_SDP_PPS));
+
+	if ((assume_all_enabled && HAS_AS_SDP(display)) ||
+	    crtc_state->infoframes.enable & intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC))
+		sdp_guardband = max(sdp_guardband,
+				    intel_dp_get_lines_for_sdp(crtc_state, DP_SDP_ADAPTIVE_SYNC));
+
+	return sdp_guardband;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index f90cfd1dbbd0..200a8b267f64 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -12,6 +12,7 @@ enum intel_output_format;
 enum pipe;
 enum port;
 struct drm_connector_state;
+struct drm_dp_desc;
 struct drm_dp_vsc_sdp;
 struct drm_encoder;
 struct drm_modeset_acquire_ctx;
@@ -72,6 +73,8 @@ void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
 int intel_dp_compute_config(struct intel_encoder *encoder,
 			    struct intel_crtc_state *pipe_config,
 			    struct drm_connector_state *conn_state);
+bool intel_dp_needs_8b10b_fec(const struct intel_crtc_state *crtc_state,
+			      bool dsc_enabled_on_crtc);
 int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 				struct intel_crtc_state *pipe_config,
 				struct drm_connector_state *conn_state,
@@ -199,7 +202,9 @@ bool intel_dp_compute_config_limits(struct intel_dp *intel_dp,
 				    bool dsc,
 				    struct link_config_limits *limits);
 
-void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector);
+void intel_dp_get_dsc_sink_cap(u8 dpcd_rev,
+			       const struct drm_dp_desc *desc, bool is_branch,
+			       struct intel_connector *connector);
 bool intel_dp_has_gamut_metadata_dip(struct intel_encoder *encoder);
 
 bool intel_dp_link_params_valid(struct intel_dp *intel_dp, int link_rate,
@@ -215,5 +220,10 @@ int intel_dp_compute_min_hblank(struct intel_crtc_state *crtc_state,
 int intel_dp_dsc_bpp_step_x16(const struct intel_connector *connector);
 void intel_dp_dpcd_set_probe(struct intel_dp *intel_dp, bool force_on_external);
 bool intel_dp_in_hdr_mode(const struct drm_connector_state *conn_state);
+int intel_dp_compute_config_late(struct intel_encoder *encoder,
+				 struct intel_crtc_state *crtc_state,
+				 struct drm_connector_state *conn_state);
+int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state,
+			       bool assume_all_enabled);
 
 #endif /* __INTEL_DP_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index 829a7c0fbe4f..2e7dbaf511b9 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -5,9 +5,9 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_aux.h"
 #include "intel_dp_aux_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 27f3716bdc1f..aad5fe14962f 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -27,9 +27,10 @@
 #include <drm/display/drm_dp_helper.h>
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_display_core.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_link_training.h"
 #include "intel_encoder.h"
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 352f7ef29c28..4c0b943fe86f 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -33,7 +33,6 @@
 #include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
 #include "intel_connector.h"
@@ -43,6 +42,7 @@
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_hdcp.h"
 #include "intel_dp_link_training.h"
@@ -293,12 +293,22 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp,
 		mst_stream_update_slots(crtc_state, mst_state);
 	}
 
-	if (dsc) {
-		if (!intel_dp_supports_fec(intel_dp, connector, crtc_state))
-			return -EINVAL;
-
-		crtc_state->fec_enable = !intel_dp_is_uhbr(crtc_state);
-	}
+	/*
+	 * NOTE: The following must reset crtc_state->fec_enable for UHBR/DSC
+	 * after it was set by intel_dp_dsc_compute_config() ->
+	 * intel_dp_needs_8b10b_fec().
+	 */
+	crtc_state->fec_enable = intel_dp_needs_8b10b_fec(crtc_state, dsc);
+	/*
+	 * If FEC gets enabled only because of another compressed stream, FEC
+	 * may not be supported for this uncompressed stream on the whole link
+	 * path until the sink DPRX. In this case a downstream branch device
+	 * will disable FEC for the uncompressed stream as expected and so the
+	 * FEC support doesn't need to be checked for this uncompressed stream.
+	 */
+	if (crtc_state->fec_enable && dsc &&
+	    !intel_dp_supports_fec(intel_dp, connector, crtc_state))
+		return -EINVAL;
 
 	max_dpt_bpp_x16 = fxp_q4_from_int(intel_dp_mst_max_dpt_bpp(crtc_state, dsc));
 	if (max_dpt_bpp_x16 && max_bpp_x16 > max_dpt_bpp_x16) {
@@ -811,14 +821,14 @@ static u8 get_pipes_downstream_of_mst_port(struct intel_atomic_state *state,
 	return mask;
 }
 
-static int intel_dp_mst_check_fec_change(struct intel_atomic_state *state,
+static int intel_dp_mst_check_dsc_change(struct intel_atomic_state *state,
 					 struct drm_dp_mst_topology_mgr *mst_mgr,
 					 struct intel_link_bw_limits *limits)
 {
 	struct intel_display *display = to_intel_display(state);
 	struct intel_crtc *crtc;
 	u8 mst_pipe_mask;
-	u8 fec_pipe_mask = 0;
+	u8 dsc_pipe_mask = 0;
 	int ret;
 
 	mst_pipe_mask = get_pipes_downstream_of_mst_port(state, mst_mgr, NULL);
@@ -831,16 +841,16 @@ static int intel_dp_mst_check_fec_change(struct intel_atomic_state *state,
 		if (drm_WARN_ON(display->drm, !crtc_state))
 			return -EINVAL;
 
-		if (crtc_state->fec_enable)
-			fec_pipe_mask |= BIT(crtc->pipe);
+		if (intel_dsc_enabled_on_link(crtc_state))
+			dsc_pipe_mask |= BIT(crtc->pipe);
 	}
 
-	if (!fec_pipe_mask || mst_pipe_mask == fec_pipe_mask)
+	if (!dsc_pipe_mask || mst_pipe_mask == dsc_pipe_mask)
 		return 0;
 
-	limits->force_fec_pipes |= mst_pipe_mask;
+	limits->link_dsc_pipes |= mst_pipe_mask;
 
-	ret = intel_modeset_pipes_in_mask_early(state, "MST FEC",
+	ret = intel_modeset_pipes_in_mask_early(state, "MST DSC",
 						mst_pipe_mask);
 
 	return ret ? : -EAGAIN;
@@ -894,7 +904,7 @@ int intel_dp_mst_atomic_check_link(struct intel_atomic_state *state,
 	int i;
 
 	for_each_new_mst_mgr_in_state(&state->base, mgr, mst_state, i) {
-		ret = intel_dp_mst_check_fec_change(state, mgr, limits);
+		ret = intel_dp_mst_check_dsc_change(state, mgr, limits);
 		if (ret)
 			return ret;
 
@@ -1658,6 +1668,7 @@ intel_dp_mst_read_decompression_port_dsc_caps(struct intel_dp *intel_dp,
 					      struct intel_connector *connector)
 {
 	u8 dpcd_caps[DP_RECEIVER_CAP_SIZE];
+	struct drm_dp_desc desc;
 
 	if (!connector->dp.dsc_decompression_aux)
 		return;
@@ -1665,7 +1676,13 @@ intel_dp_mst_read_decompression_port_dsc_caps(struct intel_dp *intel_dp,
 	if (drm_dp_read_dpcd_caps(connector->dp.dsc_decompression_aux, dpcd_caps) < 0)
 		return;
 
-	intel_dp_get_dsc_sink_cap(dpcd_caps[DP_DPCD_REV], connector);
+	if (drm_dp_read_desc(connector->dp.dsc_decompression_aux, &desc,
+			     drm_dp_is_branch(dpcd_caps)) < 0)
+		return;
+
+	intel_dp_get_dsc_sink_cap(dpcd_caps[DP_DPCD_REV],
+				  &desc, drm_dp_is_branch(dpcd_caps),
+				  connector);
 }
 
 static bool detect_dsc_hblank_expansion_quirk(const struct intel_connector *connector)
diff --git a/drivers/gpu/drm/i915/display/intel_dpio_phy.c b/drivers/gpu/drm/i915/display/intel_dpio_phy.c
index 3f77ad92c156..5df6347a420d 100644
--- a/drivers/gpu/drm/i915/display/intel_dpio_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_dpio_phy.c
@@ -24,13 +24,13 @@
 #include <drm/drm_print.h>
 
 #include "bxt_dpio_phy_regs.h"
-#include "i915_utils.h"
 #include "intel_ddi.h"
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dpio_phy.h"
 #include "vlv_dpio_phy_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c
index f969c5399a51..2e1f67be8eda 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll.c
@@ -17,6 +17,7 @@
 #include "intel_display_types.h"
 #include "intel_dpio_phy.h"
 #include "intel_dpll.h"
+#include "intel_lt_phy.h"
 #include "intel_lvds.h"
 #include "intel_lvds_regs.h"
 #include "intel_panel.h"
@@ -1232,6 +1233,28 @@ static int mtl_crtc_compute_clock(struct intel_atomic_state *state,
 	return 0;
 }
 
+static int xe3plpd_crtc_compute_clock(struct intel_atomic_state *state,
+				      struct intel_crtc *crtc)
+{
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	struct intel_encoder *encoder =
+		intel_get_crtc_new_encoder(state, crtc_state);
+	int ret;
+
+	ret = intel_lt_phy_pll_calc_state(crtc_state, encoder);
+	if (ret)
+		return ret;
+
+	/* TODO: Do the readback via intel_compute_shared_dplls() */
+	crtc_state->port_clock =
+			intel_lt_phy_calc_port_clock(encoder, crtc_state);
+
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
+	return 0;
+}
+
 static int ilk_fb_cb_factor(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
@@ -1691,6 +1714,10 @@ static int i8xx_crtc_compute_clock(struct intel_atomic_state *state,
 	return 0;
 }
 
+static const struct intel_dpll_global_funcs xe3plpd_dpll_funcs = {
+	.crtc_compute_clock = xe3plpd_crtc_compute_clock,
+};
+
 static const struct intel_dpll_global_funcs mtl_dpll_funcs = {
 	.crtc_compute_clock = mtl_crtc_compute_clock,
 };
@@ -1789,7 +1816,9 @@ int intel_dpll_crtc_get_dpll(struct intel_atomic_state *state,
 void
 intel_dpll_init_clock_hook(struct intel_display *display)
 {
-	if (DISPLAY_VER(display) >= 14)
+	if (HAS_LT_PHY(display))
+		display->funcs.dpll = &xe3plpd_dpll_funcs;
+	else if (DISPLAY_VER(display) >= 14)
 		display->funcs.dpll = &mtl_dpll_funcs;
 	else if (display->platform.dg2)
 		display->funcs.dpll = &dg2_dpll_funcs;
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 8ea96cc524a1..92c433f7b7e2 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -27,11 +27,11 @@
 #include <drm/drm_print.h>
 
 #include "bxt_dpio_phy_regs.h"
-#include "i915_utils.h"
 #include "intel_cx0_phy.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dkl_phy.h"
 #include "intel_dkl_phy_regs.h"
 #include "intel_dpio_phy.h"
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
index f131bdd1c975..6183da90b28d 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
@@ -267,6 +267,16 @@ struct intel_cx0pll_state {
 	bool tbt_mode;
 };
 
+struct intel_lt_phy_pll_state {
+	u32 clock; /* in kHz */
+	u8 addr_msb[13];
+	u8 addr_lsb[13];
+	u8 data[13][4];
+	u8 config[3];
+	bool ssc_enabled;
+	bool tbt_mode;
+};
+
 struct intel_dpll_hw_state {
 	union {
 		struct i9xx_dpll_hw_state i9xx;
@@ -276,6 +286,7 @@ struct intel_dpll_hw_state {
 		struct icl_dpll_hw_state icl;
 		struct intel_mpllb_state mpllb;
 		struct intel_cx0pll_state cx0pll;
+		struct intel_lt_phy_pll_state ltpll;
 	};
 };
 
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c
index dee44d45b668..4ad4efbf9253 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.c
+++ b/drivers/gpu/drm/i915/display/intel_dsb.c
@@ -115,24 +115,6 @@ static bool pre_commit_is_vrr_active(struct intel_atomic_state *state,
 	return old_crtc_state->vrr.enable && !intel_crtc_vrr_disabling(state, crtc);
 }
 
-static int dsb_vblank_delay(struct intel_atomic_state *state,
-			    struct intel_crtc *crtc)
-{
-	const struct intel_crtc_state *crtc_state =
-		intel_pre_commit_crtc_state(state, crtc);
-
-	if (pre_commit_is_vrr_active(state, crtc))
-		/*
-		 * When the push is sent during vblank it will trigger
-		 * on the next scanline, hence we have up to one extra
-		 * scanline until the delayed vblank occurs after
-		 * TRANS_PUSH has been written.
-		 */
-		return intel_vrr_vblank_delay(crtc_state) + 1;
-	else
-		return intel_mode_vblank_delay(&crtc_state->hw.adjusted_mode);
-}
-
 static int dsb_vtotal(struct intel_atomic_state *state,
 		      struct intel_crtc *crtc)
 {
@@ -723,7 +705,7 @@ void intel_dsb_vblank_evade(struct intel_atomic_state *state,
 		intel_dsb_emit_wait_dsl(dsb, DSB_OPCODE_WAIT_DSL_OUT, 0, 0);
 
 	if (pre_commit_is_vrr_active(state, crtc)) {
-		int vblank_delay = intel_vrr_vblank_delay(crtc_state);
+		int vblank_delay = crtc_state->set_context_latency;
 
 		end = intel_vrr_vmin_vblank_start(crtc_state);
 		start = end - vblank_delay - latency;
@@ -815,16 +797,43 @@ void intel_dsb_chain(struct intel_atomic_state *state,
 			 wait_for_vblank ? DSB_WAIT_FOR_VBLANK : 0);
 }
 
-void intel_dsb_wait_vblank_delay(struct intel_atomic_state *state,
-				 struct intel_dsb *dsb)
+void intel_dsb_wait_for_delayed_vblank(struct intel_atomic_state *state,
+				       struct intel_dsb *dsb)
 {
 	struct intel_crtc *crtc = dsb->crtc;
 	const struct intel_crtc_state *crtc_state =
 		intel_pre_commit_crtc_state(state, crtc);
-	int usecs = intel_scanlines_to_usecs(&crtc_state->hw.adjusted_mode,
-					     dsb_vblank_delay(state, crtc));
+	const struct drm_display_mode *adjusted_mode =
+		&crtc_state->hw.adjusted_mode;
+	int wait_scanlines;
 
-	intel_dsb_wait_usec(dsb, usecs);
+	if (pre_commit_is_vrr_active(state, crtc)) {
+		/*
+		 * If the push happened before the vmin decision boundary
+		 * we don't know how far we are from the undelayed vblank.
+		 * Wait until we're past the vmin safe window, at which
+		 * point we're SCL lines away from the delayed vblank.
+		 *
+		 * If the push happened after the vmin decision boundary
+		 * the hardware itself guarantees that we're SCL lines
+		 * away from the delayed vblank, and we won't be inside
+		 * the vmin safe window so this extra wait does nothing.
+		 */
+		intel_dsb_wait_scanline_out(state, dsb,
+					    intel_vrr_safe_window_start(crtc_state),
+					    intel_vrr_vmin_safe_window_end(crtc_state));
+		/*
+		 * When the push is sent during vblank it will trigger
+		 * on the next scanline, hence we have up to one extra
+		 * scanline until the delayed vblank occurs after
+		 * TRANS_PUSH has been written.
+		 */
+		wait_scanlines = crtc_state->set_context_latency + 1;
+	} else {
+		wait_scanlines = intel_mode_vblank_delay(adjusted_mode);
+	}
+
+	intel_dsb_wait_usec(dsb, intel_scanlines_to_usecs(adjusted_mode, wait_scanlines));
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h
index c8f4499916eb..2f31f2c1d0c5 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.h
+++ b/drivers/gpu/drm/i915/display/intel_dsb.h
@@ -48,8 +48,8 @@ void intel_dsb_nonpost_end(struct intel_dsb *dsb);
 void intel_dsb_interrupt(struct intel_dsb *dsb);
 void intel_dsb_wait_usec(struct intel_dsb *dsb, int count);
 void intel_dsb_wait_vblanks(struct intel_dsb *dsb, int count);
-void intel_dsb_wait_vblank_delay(struct intel_atomic_state *state,
-				 struct intel_dsb *dsb);
+void intel_dsb_wait_for_delayed_vblank(struct intel_atomic_state *state,
+				       struct intel_dsb *dsb);
 void intel_dsb_wait_scanline_in(struct intel_atomic_state *state,
 				struct intel_dsb *dsb,
 				int lower, int upper);
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 23402408e172..31edf57a296f 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -38,10 +38,10 @@
 #include <drm/drm_print.h>
 #include <video/mipi_display.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dsi.h"
 #include "intel_dsi_vbt.h"
 #include "intel_gmbus_regs.h"
@@ -106,8 +106,8 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi,
 	u8 type, flags, seq_port;
 	u16 len;
 	enum port port;
-
-	drm_dbg_kms(display->drm, "\n");
+	ssize_t ret;
+	bool hs_mode;
 
 	flags = *data++;
 	type = *data++;
@@ -129,45 +129,53 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi,
 		goto out;
 	}
 
-	if ((flags >> MIPI_TRANSFER_MODE_SHIFT) & 1)
+	hs_mode = (flags >> MIPI_TRANSFER_MODE_SHIFT) & 1;
+	if (hs_mode)
 		dsi_device->mode_flags &= ~MIPI_DSI_MODE_LPM;
 	else
 		dsi_device->mode_flags |= MIPI_DSI_MODE_LPM;
 
 	dsi_device->channel = (flags >> MIPI_VIRTUAL_CHANNEL_SHIFT) & 3;
 
+	drm_dbg_kms(display->drm, "DSI packet: Port %c (seq %u), Flags 0x%02x, VC %u, %s, Type 0x%02x, Length %u, Data %*ph\n",
+		    port_name(port), seq_port, flags, dsi_device->channel,
+		    hs_mode ? "HS" : "LP", type, len, (int)len, data);
+
 	switch (type) {
 	case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
-		mipi_dsi_generic_write(dsi_device, NULL, 0);
+		ret = mipi_dsi_generic_write(dsi_device, NULL, 0);
 		break;
 	case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
-		mipi_dsi_generic_write(dsi_device, data, 1);
+		ret = mipi_dsi_generic_write(dsi_device, data, 1);
 		break;
 	case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
-		mipi_dsi_generic_write(dsi_device, data, 2);
+		ret = mipi_dsi_generic_write(dsi_device, data, 2);
 		break;
 	case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
 	case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
 	case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
-		drm_dbg_kms(display->drm, "Generic Read not yet implemented or used\n");
+		ret = -EOPNOTSUPP;
 		break;
 	case MIPI_DSI_GENERIC_LONG_WRITE:
-		mipi_dsi_generic_write(dsi_device, data, len);
+		ret = mipi_dsi_generic_write(dsi_device, data, len);
 		break;
 	case MIPI_DSI_DCS_SHORT_WRITE:
-		mipi_dsi_dcs_write_buffer(dsi_device, data, 1);
+		ret = mipi_dsi_dcs_write_buffer(dsi_device, data, 1);
 		break;
 	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
-		mipi_dsi_dcs_write_buffer(dsi_device, data, 2);
+		ret = mipi_dsi_dcs_write_buffer(dsi_device, data, 2);
 		break;
 	case MIPI_DSI_DCS_READ:
-		drm_dbg_kms(display->drm, "DCS Read not yet implemented or used\n");
+		ret = -EOPNOTSUPP;
 		break;
 	case MIPI_DSI_DCS_LONG_WRITE:
-		mipi_dsi_dcs_write_buffer(dsi_device, data, len);
+		ret = mipi_dsi_dcs_write_buffer(dsi_device, data, len);
 		break;
 	}
 
+	if (ret < 0)
+		drm_err(display->drm, "DSI send packet failed with %pe\n", ERR_PTR(ret));
+
 	if (DISPLAY_VER(display) < 11)
 		vlv_dsi_wait_for_fifo_empty(intel_dsi, port);
 
diff --git a/drivers/gpu/drm/i915/display/intel_dvo.c b/drivers/gpu/drm/i915/display/intel_dvo.c
index 08b48e36aca6..c2663d6e2c92 100644
--- a/drivers/gpu/drm/i915/display/intel_dvo.c
+++ b/drivers/gpu/drm/i915/display/intel_dvo.c
@@ -34,12 +34,12 @@
 #include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
-#include "i915_utils.h"
 #include "intel_connector.h"
 #include "intel_de.h"
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dvo.h"
 #include "intel_dvo_dev.h"
 #include "intel_dvo_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index b817ff44c043..705fcd42d358 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -10,12 +10,11 @@
 #include <drm/drm_gem.h>
 #include <drm/drm_modeset_helper.h>
 
-#include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_bo.h"
 #include "intel_display.h"
 #include "intel_display_core.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dpt.h"
 #include "intel_fb.h"
 #include "intel_fb_bo.h"
@@ -547,8 +546,6 @@ static bool plane_has_modifier(struct intel_display *display,
 			       u8 plane_caps,
 			       const struct intel_modifier_desc *md)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	if (!IS_DISPLAY_VER(display, md->display_ver.from, md->display_ver.until))
 		return false;
 
@@ -560,15 +557,15 @@ static bool plane_has_modifier(struct intel_display *display,
 	 * where supported.
 	 */
 	if (intel_fb_is_ccs_modifier(md->modifier) &&
-	    HAS_FLAT_CCS(i915) != !md->ccs.packed_aux_planes)
+	    HAS_AUX_CCS(display) != !!md->ccs.packed_aux_planes)
 		return false;
 
 	if (md->modifier == I915_FORMAT_MOD_4_TILED_BMG_CCS &&
-	    (GRAPHICS_VER(i915) < 20 || !display->platform.dgfx))
+	    (DISPLAY_VER(display) < 14 || !display->platform.dgfx))
 		return false;
 
 	if (md->modifier == I915_FORMAT_MOD_4_TILED_LNL_CCS &&
-	    (GRAPHICS_VER(i915) < 20 || display->platform.dgfx))
+	    (DISPLAY_VER(display) < 20 || display->platform.dgfx))
 		return false;
 
 	return true;
@@ -777,7 +774,6 @@ unsigned int
 intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
 {
 	struct intel_display *display = to_intel_display(fb->dev);
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	unsigned int cpp = fb->format->cpp[color_plane];
 
 	switch (fb->modifier) {
@@ -814,7 +810,7 @@ intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
 			return 64;
 		fallthrough;
 	case I915_FORMAT_MOD_Y_TILED:
-		if (DISPLAY_VER(display) == 2 || HAS_128_BYTE_Y_TILING(i915))
+		if (HAS_128B_Y_TILING(display))
 			return 128;
 		else
 			return 512;
@@ -2117,6 +2113,7 @@ static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
 
 	intel_frontbuffer_put(intel_fb->frontbuffer);
 
+	kfree(intel_fb->panic);
 	kfree(intel_fb);
 }
 
@@ -2215,18 +2212,24 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 	struct intel_display *display = to_intel_display(obj->dev);
 	struct drm_framebuffer *fb = &intel_fb->base;
 	u32 max_stride;
-	int ret = -EINVAL;
+	int ret;
 	int i;
 
+	intel_fb->panic = intel_panic_alloc();
+	if (!intel_fb->panic)
+		return -ENOMEM;
+
 	/*
 	 * intel_frontbuffer_get() must be done before
 	 * intel_fb_bo_framebuffer_init() to avoid set_tiling vs. addfb race.
 	 */
 	intel_fb->frontbuffer = intel_frontbuffer_get(obj);
-	if (!intel_fb->frontbuffer)
-		return -ENOMEM;
+	if (!intel_fb->frontbuffer) {
+		ret = -ENOMEM;
+		goto err_free_panic;
+	}
 
-	ret = intel_fb_bo_framebuffer_init(fb, obj, mode_cmd);
+	ret = intel_fb_bo_framebuffer_init(obj, mode_cmd);
 	if (ret)
 		goto err_frontbuffer_put;
 
@@ -2323,6 +2326,9 @@ err_bo_framebuffer_fini:
 	intel_fb_bo_framebuffer_fini(obj);
 err_frontbuffer_put:
 	intel_frontbuffer_put(intel_fb->frontbuffer);
+err_free_panic:
+	kfree(intel_fb->panic);
+
 	return ret;
 }
 
@@ -2349,20 +2355,11 @@ intel_user_framebuffer_create(struct drm_device *dev,
 struct intel_framebuffer *intel_framebuffer_alloc(void)
 {
 	struct intel_framebuffer *intel_fb;
-	struct intel_panic *panic;
 
 	intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
 	if (!intel_fb)
 		return NULL;
 
-	panic = intel_panic_alloc();
-	if (!panic) {
-		kfree(intel_fb);
-		return NULL;
-	}
-
-	intel_fb->panic = panic;
-
 	return intel_fb;
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_fb_bo.c b/drivers/gpu/drm/i915/display/intel_fb_bo.c
index b0e8b89f7ce8..7336d7294a7b 100644
--- a/drivers/gpu/drm/i915/display/intel_fb_bo.c
+++ b/drivers/gpu/drm/i915/display/intel_fb_bo.c
@@ -18,8 +18,7 @@ void intel_fb_bo_framebuffer_fini(struct drm_gem_object *obj)
 	/* Nothing to do for i915 */
 }
 
-int intel_fb_bo_framebuffer_init(struct drm_framebuffer *fb,
-				 struct drm_gem_object *_obj,
+int intel_fb_bo_framebuffer_init(struct drm_gem_object *_obj,
 				 struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct drm_i915_gem_object *obj = to_intel_bo(_obj);
diff --git a/drivers/gpu/drm/i915/display/intel_fb_bo.h b/drivers/gpu/drm/i915/display/intel_fb_bo.h
index eefcb05a99f0..d775773c6c03 100644
--- a/drivers/gpu/drm/i915/display/intel_fb_bo.h
+++ b/drivers/gpu/drm/i915/display/intel_fb_bo.h
@@ -14,8 +14,7 @@ struct drm_mode_fb_cmd2;
 
 void intel_fb_bo_framebuffer_fini(struct drm_gem_object *obj);
 
-int intel_fb_bo_framebuffer_init(struct drm_framebuffer *fb,
-				 struct drm_gem_object *obj,
+int intel_fb_bo_framebuffer_init(struct drm_gem_object *obj,
 				 struct drm_mode_fb_cmd2 *mode_cmd);
 
 struct drm_gem_object *
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 0d380c825791..54b23116ea3c 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -49,17 +49,16 @@
 #include "gt/intel_gt_types.h"
 
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "i915_vgpu.h"
 #include "i915_vma.h"
 #include "i9xx_plane_regs.h"
-#include "intel_cdclk.h"
 #include "intel_de.h"
 #include "intel_display_device.h"
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_trace.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_fbc.h"
 #include "intel_fbc_regs.h"
@@ -102,7 +101,8 @@ struct intel_fbc {
 	struct mutex lock;
 	unsigned int busy_bits;
 
-	struct i915_stolen_fb compressed_fb, compressed_llb;
+	struct intel_stolen_node *compressed_fb;
+	struct intel_stolen_node *compressed_llb;
 
 	enum intel_fbc_id id;
 
@@ -141,15 +141,18 @@ static unsigned int intel_fbc_plane_stride(const struct intel_plane_state *plane
 	return stride;
 }
 
-static unsigned int intel_fbc_cfb_cpp(void)
+static unsigned int intel_fbc_cfb_cpp(const struct intel_plane_state *plane_state)
 {
-	return 4; /* FBC always 4 bytes per pixel */
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+	unsigned int cpp = fb->format->cpp[0];
+
+	return max(cpp, 4);
 }
 
 /* plane stride based cfb stride in bytes, assuming 1:1 compression limit */
 static unsigned int intel_fbc_plane_cfb_stride(const struct intel_plane_state *plane_state)
 {
-	unsigned int cpp = intel_fbc_cfb_cpp();
+	unsigned int cpp = intel_fbc_cfb_cpp(plane_state);
 
 	return intel_fbc_plane_stride(plane_state) * cpp;
 }
@@ -203,7 +206,7 @@ static unsigned int intel_fbc_cfb_stride(const struct intel_plane_state *plane_s
 	struct intel_display *display = to_intel_display(plane_state->uapi.plane->dev);
 	unsigned int stride = intel_fbc_plane_cfb_stride(plane_state);
 	unsigned int width = drm_rect_width(&plane_state->uapi.src) >> 16;
-	unsigned int cpp = intel_fbc_cfb_cpp();
+	unsigned int cpp = intel_fbc_cfb_cpp(plane_state);
 
 	return _intel_fbc_cfb_stride(display, cpp, width, stride);
 }
@@ -376,20 +379,19 @@ static void i8xx_fbc_nuke(struct intel_fbc *fbc)
 static void i8xx_fbc_program_cfb(struct intel_fbc *fbc)
 {
 	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 
 	drm_WARN_ON(display->drm,
-		    range_end_overflows_t(u64, i915_gem_stolen_area_address(i915),
-					  i915_gem_stolen_node_offset(&fbc->compressed_fb),
+		    range_end_overflows_t(u64, i915_gem_stolen_area_address(display->drm),
+					  i915_gem_stolen_node_offset(fbc->compressed_fb),
 					  U32_MAX));
 	drm_WARN_ON(display->drm,
-		    range_end_overflows_t(u64, i915_gem_stolen_area_address(i915),
-					  i915_gem_stolen_node_offset(&fbc->compressed_llb),
+		    range_end_overflows_t(u64, i915_gem_stolen_area_address(display->drm),
+					  i915_gem_stolen_node_offset(fbc->compressed_llb),
 					  U32_MAX));
 	intel_de_write(display, FBC_CFB_BASE,
-		       i915_gem_stolen_node_address(i915, &fbc->compressed_fb));
+		       i915_gem_stolen_node_address(fbc->compressed_fb));
 	intel_de_write(display, FBC_LL_BASE,
-		       i915_gem_stolen_node_address(i915, &fbc->compressed_llb));
+		       i915_gem_stolen_node_address(fbc->compressed_llb));
 }
 
 static const struct intel_fbc_funcs i8xx_fbc_funcs = {
@@ -497,7 +499,7 @@ static void g4x_fbc_program_cfb(struct intel_fbc *fbc)
 	struct intel_display *display = fbc->display;
 
 	intel_de_write(display, DPFC_CB_BASE,
-		       i915_gem_stolen_node_offset(&fbc->compressed_fb));
+		       i915_gem_stolen_node_offset(fbc->compressed_fb));
 }
 
 static const struct intel_fbc_funcs g4x_fbc_funcs = {
@@ -566,7 +568,7 @@ static void ilk_fbc_program_cfb(struct intel_fbc *fbc)
 	struct intel_display *display = fbc->display;
 
 	intel_de_write(display, ILK_DPFC_CB_BASE(fbc->id),
-		       i915_gem_stolen_node_offset(&fbc->compressed_fb));
+		       i915_gem_stolen_node_offset(fbc->compressed_fb));
 }
 
 static const struct intel_fbc_funcs ilk_fbc_funcs = {
@@ -797,7 +799,6 @@ static u64 intel_fbc_cfb_base_max(struct intel_display *display)
 
 static u64 intel_fbc_stolen_end(struct intel_display *display)
 {
-	struct drm_i915_private __maybe_unused *i915 = to_i915(display->drm);
 	u64 end;
 
 	/* The FBC hardware for BDW/SKL doesn't have access to the stolen
@@ -806,7 +807,7 @@ static u64 intel_fbc_stolen_end(struct intel_display *display)
 	 * underruns, even if that range is not reserved by the BIOS. */
 	if (display->platform.broadwell ||
 	    (DISPLAY_VER(display) == 9 && !display->platform.broxton))
-		end = i915_gem_stolen_area_size(i915) - 8 * 1024 * 1024;
+		end = i915_gem_stolen_area_size(display->drm) - 8 * 1024 * 1024;
 	else
 		end = U64_MAX;
 
@@ -835,20 +836,19 @@ static int find_compression_limit(struct intel_fbc *fbc,
 				  unsigned int size, int min_limit)
 {
 	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	u64 end = intel_fbc_stolen_end(display);
 	int ret, limit = min_limit;
 
 	size /= limit;
 
 	/* Try to over-allocate to reduce reallocations and fragmentation. */
-	ret = i915_gem_stolen_insert_node_in_range(i915, &fbc->compressed_fb,
+	ret = i915_gem_stolen_insert_node_in_range(fbc->compressed_fb,
 						   size <<= 1, 4096, 0, end);
 	if (ret == 0)
 		return limit;
 
 	for (; limit <= intel_fbc_max_limit(display); limit <<= 1) {
-		ret = i915_gem_stolen_insert_node_in_range(i915, &fbc->compressed_fb,
+		ret = i915_gem_stolen_insert_node_in_range(fbc->compressed_fb,
 							   size >>= 1, 4096, 0, end);
 		if (ret == 0)
 			return limit;
@@ -861,17 +861,15 @@ static int intel_fbc_alloc_cfb(struct intel_fbc *fbc,
 			       unsigned int size, int min_limit)
 {
 	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	int ret;
 
 	drm_WARN_ON(display->drm,
-		    i915_gem_stolen_node_allocated(&fbc->compressed_fb));
+		    i915_gem_stolen_node_allocated(fbc->compressed_fb));
 	drm_WARN_ON(display->drm,
-		    i915_gem_stolen_node_allocated(&fbc->compressed_llb));
+		    i915_gem_stolen_node_allocated(fbc->compressed_llb));
 
 	if (DISPLAY_VER(display) < 5 && !display->platform.g4x) {
-		ret = i915_gem_stolen_insert_node(i915, &fbc->compressed_llb,
-						  4096, 4096);
+		ret = i915_gem_stolen_insert_node(fbc->compressed_llb, 4096, 4096);
 		if (ret)
 			goto err;
 	}
@@ -887,14 +885,14 @@ static int intel_fbc_alloc_cfb(struct intel_fbc *fbc,
 
 	drm_dbg_kms(display->drm,
 		    "reserved %llu bytes of contiguous stolen space for FBC, limit: %d\n",
-		    i915_gem_stolen_node_size(&fbc->compressed_fb), fbc->limit);
+		    i915_gem_stolen_node_size(fbc->compressed_fb), fbc->limit);
 	return 0;
 
 err_llb:
-	if (i915_gem_stolen_node_allocated(&fbc->compressed_llb))
-		i915_gem_stolen_remove_node(i915, &fbc->compressed_llb);
+	if (i915_gem_stolen_node_allocated(fbc->compressed_llb))
+		i915_gem_stolen_remove_node(fbc->compressed_llb);
 err:
-	if (i915_gem_stolen_initialized(i915))
+	if (i915_gem_stolen_initialized(display->drm))
 		drm_info_once(display->drm,
 			      "not enough stolen space for compressed buffer (need %d more bytes), disabling. Hint: you may be able to increase stolen memory size in the BIOS to avoid this.\n", size);
 	return -ENOSPC;
@@ -932,9 +930,12 @@ static void intel_fbc_program_workarounds(struct intel_fbc *fbc)
 	if (IS_DISPLAY_VER(display, 11, 12))
 		intel_de_rmw(display, ILK_DPFC_CHICKEN(fbc->id),
 			     0, DPFC_CHICKEN_COMP_DUMMY_PIXEL);
-
-	/* Wa_22014263786:icl,jsl,tgl,dg1,rkl,adls,adlp,mtl */
-	if (DISPLAY_VER(display) >= 11 && !display->platform.dg2)
+	/*
+	 * Wa_22014263786
+	 * Fixes: Screen flicker with FBC and Package C state enabled
+	 * Workaround: Forced SLB invalidation before start of new frame.
+	 */
+	if (intel_display_wa(display, 22014263786))
 		intel_de_rmw(display, ILK_DPFC_CHICKEN(fbc->id),
 			     0, DPFC_CHICKEN_FORCE_SLB_INVALIDATION);
 
@@ -945,16 +946,13 @@ static void intel_fbc_program_workarounds(struct intel_fbc *fbc)
 
 static void __intel_fbc_cleanup_cfb(struct intel_fbc *fbc)
 {
-	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	if (WARN_ON(intel_fbc_hw_is_active(fbc)))
 		return;
 
-	if (i915_gem_stolen_node_allocated(&fbc->compressed_llb))
-		i915_gem_stolen_remove_node(i915, &fbc->compressed_llb);
-	if (i915_gem_stolen_node_allocated(&fbc->compressed_fb))
-		i915_gem_stolen_remove_node(i915, &fbc->compressed_fb);
+	if (i915_gem_stolen_node_allocated(fbc->compressed_llb))
+		i915_gem_stolen_remove_node(fbc->compressed_llb);
+	if (i915_gem_stolen_node_allocated(fbc->compressed_fb))
+		i915_gem_stolen_remove_node(fbc->compressed_fb);
 }
 
 void intel_fbc_cleanup(struct intel_display *display)
@@ -967,6 +965,9 @@ void intel_fbc_cleanup(struct intel_display *display)
 		__intel_fbc_cleanup_cfb(fbc);
 		mutex_unlock(&fbc->lock);
 
+		i915_gem_stolen_node_free(fbc->compressed_fb);
+		i915_gem_stolen_node_free(fbc->compressed_llb);
+
 		kfree(fbc);
 	}
 }
@@ -1083,11 +1084,57 @@ static bool lnl_fbc_pixel_format_is_valid(const struct intel_plane_state *plane_
 	}
 }
 
+static bool
+xe3p_lpd_fbc_fp16_format_is_valid(const struct intel_plane_state *plane_state)
+{
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_ARGB16161616F:
+	case DRM_FORMAT_ABGR16161616F:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool xe3p_lpd_fbc_pixel_format_is_valid(const struct intel_plane_state *plane_state)
+{
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+	if (lnl_fbc_pixel_format_is_valid(plane_state))
+		return true;
+
+	if (xe3p_lpd_fbc_fp16_format_is_valid(plane_state))
+		return true;
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_XRGB16161616:
+	case DRM_FORMAT_XBGR16161616:
+	case DRM_FORMAT_ARGB16161616:
+	case DRM_FORMAT_ABGR16161616:
+		return true;
+	default:
+		return false;
+	}
+}
+
+bool
+intel_fbc_is_enable_pixel_normalizer(const struct intel_plane_state *plane_state)
+{
+	struct intel_display *display = to_intel_display(plane_state);
+
+	return DISPLAY_VER(display) >= 35 &&
+	       xe3p_lpd_fbc_fp16_format_is_valid(plane_state);
+}
+
 static bool pixel_format_is_valid(const struct intel_plane_state *plane_state)
 {
 	struct intel_display *display = to_intel_display(plane_state->uapi.plane->dev);
 
-	if (DISPLAY_VER(display) >= 20)
+	if (DISPLAY_VER(display) >= 35)
+		return xe3p_lpd_fbc_pixel_format_is_valid(plane_state);
+	else if (DISPLAY_VER(display) >= 20)
 		return lnl_fbc_pixel_format_is_valid(plane_state);
 	else if (DISPLAY_VER(display) >= 5 || display->platform.g4x)
 		return g4x_fbc_pixel_format_is_valid(plane_state);
@@ -1355,7 +1402,7 @@ static bool intel_fbc_is_cfb_ok(const struct intel_plane_state *plane_state)
 
 	return intel_fbc_min_limit(plane_state) <= fbc->limit &&
 		intel_fbc_cfb_size(plane_state) <= fbc->limit *
-			i915_gem_stolen_node_size(&fbc->compressed_fb);
+			i915_gem_stolen_node_size(fbc->compressed_fb);
 }
 
 static bool intel_fbc_is_ok(const struct intel_plane_state *plane_state)
@@ -1421,6 +1468,18 @@ intel_fbc_prepare_dirty_rect(struct intel_atomic_state *state,
 	}
 }
 
+static int _intel_fbc_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	/* WaFbcExceedCdClockThreshold:hsw,bdw */
+	if (display->platform.haswell || display->platform.broadwell)
+		return DIV_ROUND_UP(crtc_state->pixel_rate * 100, 95);
+
+	/* no FBC specific limits to worry about */
+	return 0;
+}
+
 static int intel_fbc_check_plane(struct intel_atomic_state *state,
 				 struct intel_plane *plane)
 {
@@ -1436,7 +1495,7 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	if (!fbc)
 		return 0;
 
-	if (!i915_gem_stolen_initialized(i915)) {
+	if (!i915_gem_stolen_initialized(display->drm)) {
 		plane_state->no_fbc_reason = "stolen memory not initialised";
 		return 0;
 	}
@@ -1462,7 +1521,8 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	}
 
 	/* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt */
-	if (i915_vtd_active(i915) && (display->platform.skylake || display->platform.broxton)) {
+	if (intel_display_vtd_active(display) &&
+	    (display->platform.skylake || display->platform.broxton)) {
 		plane_state->no_fbc_reason = "VT-d enabled";
 		return 0;
 	}
@@ -1560,18 +1620,9 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 		return 0;
 	}
 
-	/* WaFbcExceedCdClockThreshold:hsw,bdw */
-	if (display->platform.haswell || display->platform.broadwell) {
-		const struct intel_cdclk_state *cdclk_state;
-
-		cdclk_state = intel_atomic_get_cdclk_state(state);
-		if (IS_ERR(cdclk_state))
-			return PTR_ERR(cdclk_state);
-
-		if (crtc_state->pixel_rate >= intel_cdclk_logical(cdclk_state) * 95 / 100) {
-			plane_state->no_fbc_reason = "pixel rate too high";
-			return 0;
-		}
+	if (_intel_fbc_min_cdclk(crtc_state) > display->cdclk.max_cdclk_freq) {
+		plane_state->no_fbc_reason = "pixel rate too high";
+		return 0;
 	}
 
 	plane_state->no_fbc_reason = NULL;
@@ -1579,6 +1630,27 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	return 0;
 }
 
+int intel_fbc_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct intel_plane *plane = to_intel_plane(crtc->base.primary);
+	int min_cdclk;
+
+	if (!plane->fbc)
+		return 0;
+
+	min_cdclk = _intel_fbc_min_cdclk(crtc_state);
+
+	/*
+	 * Do not ask for more than the max CDCLK frequency,
+	 * if that is not enough FBC will simply not be used.
+	 */
+	if (min_cdclk > display->cdclk.max_cdclk_freq)
+		return 0;
+
+	return min_cdclk;
+}
 
 static bool intel_fbc_can_flip_nuke(struct intel_atomic_state *state,
 				    struct intel_crtc *crtc,
@@ -2083,6 +2155,13 @@ static struct intel_fbc *intel_fbc_create(struct intel_display *display,
 	if (!fbc)
 		return NULL;
 
+	fbc->compressed_fb = i915_gem_stolen_node_alloc(display->drm);
+	if (!fbc->compressed_fb)
+		goto err;
+	fbc->compressed_llb = i915_gem_stolen_node_alloc(display->drm);
+	if (!fbc->compressed_llb)
+		goto err;
+
 	fbc->id = fbc_id;
 	fbc->display = display;
 	INIT_WORK(&fbc->underrun_work, intel_fbc_underrun_work_fn);
@@ -2102,6 +2181,13 @@ static struct intel_fbc *intel_fbc_create(struct intel_display *display,
 		fbc->funcs = &i8xx_fbc_funcs;
 
 	return fbc;
+
+err:
+	i915_gem_stolen_node_free(fbc->compressed_llb);
+	i915_gem_stolen_node_free(fbc->compressed_fb);
+	kfree(fbc);
+
+	return NULL;
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.h b/drivers/gpu/drm/i915/display/intel_fbc.h
index 0e715cb6b4e6..91424563206a 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.h
+++ b/drivers/gpu/drm/i915/display/intel_fbc.h
@@ -28,6 +28,7 @@ enum intel_fbc_id {
 };
 
 int intel_fbc_atomic_check(struct intel_atomic_state *state);
+int intel_fbc_min_cdclk(const struct intel_crtc_state *crtc_state);
 bool intel_fbc_pre_update(struct intel_atomic_state *state,
 			  struct intel_crtc *crtc);
 void intel_fbc_post_update(struct intel_atomic_state *state,
@@ -52,5 +53,7 @@ void intel_fbc_prepare_dirty_rect(struct intel_atomic_state *state,
 				  struct intel_crtc *crtc);
 void intel_fbc_dirty_rect_update_noarm(struct intel_dsb *dsb,
 				       struct intel_plane *plane);
+bool
+intel_fbc_is_enable_pixel_normalizer(const struct intel_plane_state *plane_state);
 
 #endif /* __INTEL_FBC_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index bf5721856f3c..e5449c41cfa1 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -205,6 +205,62 @@ static const struct drm_fb_helper_funcs intel_fb_helper_funcs = {
 	.fb_set_suspend = intelfb_set_suspend,
 };
 
+static void intel_fbdev_fill_mode_cmd(struct drm_fb_helper_surface_size *sizes,
+				      struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	/* we don't do packed 24bpp */
+	if (sizes->surface_bpp == 24)
+		sizes->surface_bpp = 32;
+
+	mode_cmd->flags = DRM_MODE_FB_MODIFIERS;
+	mode_cmd->width = sizes->surface_width;
+	mode_cmd->height = sizes->surface_height;
+
+	mode_cmd->pitches[0] = intel_fbdev_fb_pitch_align(mode_cmd->width * DIV_ROUND_UP(sizes->surface_bpp, 8));
+	mode_cmd->pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							   sizes->surface_depth);
+	mode_cmd->modifier[0] = DRM_FORMAT_MOD_LINEAR;
+}
+
+static struct intel_framebuffer *
+__intel_fbdev_fb_alloc(struct intel_display *display,
+		       struct drm_fb_helper_surface_size *sizes)
+{
+	struct drm_mode_fb_cmd2 mode_cmd = {};
+	struct drm_framebuffer *fb;
+	struct drm_gem_object *obj;
+	int size;
+
+	intel_fbdev_fill_mode_cmd(sizes, &mode_cmd);
+
+	size = mode_cmd.pitches[0] * mode_cmd.height;
+	size = PAGE_ALIGN(size);
+
+	obj = intel_fbdev_fb_bo_create(display->drm, size);
+	if (IS_ERR(obj)) {
+		fb = ERR_CAST(obj);
+		goto err;
+	}
+
+	fb = intel_framebuffer_create(obj,
+				      drm_get_format_info(display->drm,
+							  mode_cmd.pixel_format,
+							  mode_cmd.modifier[0]),
+				      &mode_cmd);
+	if (IS_ERR(fb)) {
+		intel_fbdev_fb_bo_destroy(obj);
+		goto err;
+	}
+
+	drm_gem_object_put(obj);
+
+	return to_intel_framebuffer(fb);
+
+err:
+	return ERR_CAST(fb);
+
+}
+
 int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 				   struct drm_fb_helper_surface_size *sizes)
 {
@@ -235,7 +291,8 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 	if (!fb || drm_WARN_ON(display->drm, !intel_fb_bo(&fb->base))) {
 		drm_dbg_kms(display->drm,
 			    "no BIOS fb, allocating a new one\n");
-		fb = intel_fbdev_fb_alloc(helper, sizes);
+
+		fb = __intel_fbdev_fb_alloc(display, sizes);
 		if (IS_ERR(fb))
 			return PTR_ERR(fb);
 	} else {
@@ -275,7 +332,7 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 
 	obj = intel_fb_bo(&fb->base);
 
-	ret = intel_fbdev_fb_fill_info(display, info, obj, vma);
+	ret = intel_fbdev_fb_fill_info(display->drm, info, obj, vma);
 	if (ret)
 		goto out_unpin;
 
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev_fb.c b/drivers/gpu/drm/i915/display/intel_fbdev_fb.c
index 210aee9ae88b..0838fdd37254 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev_fb.c
@@ -3,40 +3,22 @@
  * Copyright © 2023 Intel Corporation
  */
 
-#include <drm/drm_fb_helper.h>
+#include <linux/fb.h>
 
 #include "gem/i915_gem_lmem.h"
 
 #include "i915_drv.h"
-#include "intel_display_core.h"
-#include "intel_display_types.h"
-#include "intel_fb.h"
 #include "intel_fbdev_fb.h"
 
-struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
-					       struct drm_fb_helper_surface_size *sizes)
+u32 intel_fbdev_fb_pitch_align(u32 stride)
 {
-	struct intel_display *display = to_intel_display(helper->dev);
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-	struct drm_framebuffer *fb;
-	struct drm_mode_fb_cmd2 mode_cmd = {};
+	return ALIGN(stride, 64);
+}
+
+struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size)
+{
+	struct drm_i915_private *dev_priv = to_i915(drm);
 	struct drm_i915_gem_object *obj;
-	int size;
-
-	/* we don't do packed 24bpp */
-	if (sizes->surface_bpp == 24)
-		sizes->surface_bpp = 32;
-
-	mode_cmd.width = sizes->surface_width;
-	mode_cmd.height = sizes->surface_height;
-
-	mode_cmd.pitches[0] = ALIGN(mode_cmd.width *
-				    DIV_ROUND_UP(sizes->surface_bpp, 8), 64);
-	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
-							  sizes->surface_depth);
-
-	size = mode_cmd.pitches[0] * mode_cmd.height;
-	size = PAGE_ALIGN(size);
 
 	obj = ERR_PTR(-ENODEV);
 	if (HAS_LMEM(dev_priv)) {
@@ -51,31 +33,29 @@ struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
 		 *
 		 * Also skip stolen on MTL as Wa_22018444074 mitigation.
 		 */
-		if (!display->platform.meteorlake && size * 2 < dev_priv->dsm.usable_size)
+		if (!IS_METEORLAKE(dev_priv) && size * 2 < dev_priv->dsm.usable_size)
 			obj = i915_gem_object_create_stolen(dev_priv, size);
 		if (IS_ERR(obj))
 			obj = i915_gem_object_create_shmem(dev_priv, size);
 	}
 
 	if (IS_ERR(obj)) {
-		drm_err(display->drm, "failed to allocate framebuffer (%pe)\n", obj);
+		drm_err(drm, "failed to allocate framebuffer (%pe)\n", obj);
 		return ERR_PTR(-ENOMEM);
 	}
 
-	fb = intel_framebuffer_create(intel_bo_to_drm_bo(obj),
-				      drm_get_format_info(display->drm,
-							  mode_cmd.pixel_format,
-							  mode_cmd.modifier[0]),
-				      &mode_cmd);
-	i915_gem_object_put(obj);
-
-	return to_intel_framebuffer(fb);
+	return &obj->base;
 }
 
-int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info,
+void intel_fbdev_fb_bo_destroy(struct drm_gem_object *obj)
+{
+	drm_gem_object_put(obj);
+}
+
+int intel_fbdev_fb_fill_info(struct drm_device *drm, struct fb_info *info,
 			     struct drm_gem_object *_obj, struct i915_vma *vma)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct drm_i915_private *i915 = to_i915(drm);
 	struct drm_i915_gem_object *obj = to_intel_bo(_obj);
 	struct i915_gem_ww_ctx ww;
 	void __iomem *vaddr;
@@ -107,7 +87,7 @@ int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info
 
 		vaddr = i915_vma_pin_iomap(vma);
 		if (IS_ERR(vaddr)) {
-			drm_err(display->drm,
+			drm_err(drm,
 				"Failed to remap framebuffer into virtual memory (%pe)\n", vaddr);
 			ret = PTR_ERR(vaddr);
 			continue;
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev_fb.h b/drivers/gpu/drm/i915/display/intel_fbdev_fb.h
index cb7957272715..fd0b3775dc1f 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev_fb.h
+++ b/drivers/gpu/drm/i915/display/intel_fbdev_fb.h
@@ -6,16 +6,18 @@
 #ifndef __INTEL_FBDEV_FB_H__
 #define __INTEL_FBDEV_FB_H__
 
-struct drm_fb_helper;
-struct drm_fb_helper_surface_size;
+#include <linux/types.h>
+
+struct drm_device;
 struct drm_gem_object;
+struct drm_mode_fb_cmd2;
 struct fb_info;
 struct i915_vma;
-struct intel_display;
 
-struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
-					       struct drm_fb_helper_surface_size *sizes);
-int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info,
+u32 intel_fbdev_fb_pitch_align(u32 stride);
+struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size);
+void intel_fbdev_fb_bo_destroy(struct drm_gem_object *obj);
+int intel_fbdev_fb_fill_info(struct drm_device *drm, struct fb_info *info,
 			     struct drm_gem_object *obj, struct i915_vma *vma);
 
 #endif
diff --git a/drivers/gpu/drm/i915/display/intel_fdi.c b/drivers/gpu/drm/i915/display/intel_fdi.c
index 59a36b3a22c1..5bb0090dd5ed 100644
--- a/drivers/gpu/drm/i915/display/intel_fdi.c
+++ b/drivers/gpu/drm/i915/display/intel_fdi.c
@@ -9,13 +9,13 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_crtc.h"
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_fdi.h"
 #include "intel_fdi_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_flipq.c b/drivers/gpu/drm/i915/display/intel_flipq.c
index 6ab2272ab2df..f162614a925d 100644
--- a/drivers/gpu/drm/i915/display/intel_flipq.c
+++ b/drivers/gpu/drm/i915/display/intel_flipq.c
@@ -7,16 +7,16 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
-#include "intel_step.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
 #include "intel_display_core.h"
 #include "intel_display_types.h"
-#include "intel_flipq.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_dmc_regs.h"
 #include "intel_dsb.h"
+#include "intel_flipq.h"
+#include "intel_step.h"
 #include "intel_vblank.h"
 #include "intel_vrr.h"
 
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 531ee122bf82..7195e8cf671c 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -19,9 +19,9 @@
 #include <drm/intel/i915_component.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_connector.h"
 #include "intel_de.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_power.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
index 6a22862d6be1..17aa5e0cd51a 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
@@ -9,7 +9,6 @@
 #include "gt/intel_gt.h"
 #include "gt/uc/intel_gsc_uc_heci_cmd_submit.h"
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_hdcp_gsc.h"
 
 struct intel_hdcp_gsc_context {
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 4ab7e2e3bfd4..5c637341b210 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -45,7 +45,6 @@
 #include <media/cec-notifier.h>
 
 #include "g4x_hdmi.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
 #include "intel_connector.h"
@@ -55,6 +54,7 @@
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_gmbus.h"
 #include "intel_hdcp.h"
@@ -68,6 +68,20 @@
 #include "intel_snps_phy.h"
 #include "intel_vrr.h"
 
+bool intel_hdmi_is_frl(u32 clock)
+{
+	switch (clock) {
+	case 300000: /* 3 Gbps */
+	case 600000: /* 6 Gbps */
+	case 800000: /* 8 Gbps */
+	case 1000000: /* 10 Gbps */
+	case 1200000: /* 12 Gbps */
+		return true;
+	default:
+		return false;
+	}
+}
+
 static void
 assert_hdmi_port_disabled(struct intel_hdmi *intel_hdmi)
 {
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.h b/drivers/gpu/drm/i915/display/intel_hdmi.h
index dec2ad7dd8a2..be2fad57e4ad 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.h
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.h
@@ -60,6 +60,7 @@ int intel_hdmi_dsc_get_num_slices(const struct intel_crtc_state *crtc_state,
 				  int src_max_slices, int src_max_slice_width,
 				  int hdmi_max_slices, int hdmi_throughput);
 int intel_hdmi_dsc_get_slice_height(int vactive);
+bool intel_hdmi_is_frl(u32 clock);
 
 void hsw_write_infoframe(struct intel_encoder *encoder,
 			 const struct intel_crtc_state *crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 4451a792600a..3e508bb9ecdd 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -28,12 +28,12 @@
 
 #include "i915_drv.h"
 #include "i915_irq.h"
-#include "i915_utils.h"
 #include "intel_connector.h"
-#include "intel_display_power.h"
 #include "intel_display_core.h"
+#include "intel_display_power.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_hdcp.h"
 #include "intel_hotplug.h"
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
index 4f72f3fb9af5..46c47b3d6f42 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
@@ -6,11 +6,11 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_irq.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp_aux.h"
 #include "intel_gmbus.h"
 #include "intel_hotplug.h"
@@ -420,6 +420,9 @@ u32 i9xx_hpd_irq_ack(struct intel_display *display)
 	u32 hotplug_status = 0, hotplug_status_mask;
 	int i;
 
+	if (!HAS_HOTPLUG(display))
+		return 0;
+
 	if (display->platform.g4x ||
 	    display->platform.valleyview || display->platform.cherryview)
 		hotplug_status_mask = HOTPLUG_INT_STATUS_G4X |
diff --git a/drivers/gpu/drm/i915/display/intel_link_bw.c b/drivers/gpu/drm/i915/display/intel_link_bw.c
index f52dee0ea412..d2862de894fa 100644
--- a/drivers/gpu/drm/i915/display/intel_link_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_link_bw.c
@@ -20,6 +20,7 @@
 #include "intel_dp_tunnel.h"
 #include "intel_fdi.h"
 #include "intel_link_bw.h"
+#include "intel_vdsc.h"
 
 static int get_forced_link_bpp_x16(struct intel_atomic_state *state,
 				   const struct intel_crtc *crtc)
@@ -55,7 +56,7 @@ void intel_link_bw_init_limits(struct intel_atomic_state *state,
 	struct intel_display *display = to_intel_display(state);
 	enum pipe pipe;
 
-	limits->force_fec_pipes = 0;
+	limits->link_dsc_pipes = 0;
 	limits->bpp_limit_reached_pipes = 0;
 	for_each_pipe(display, pipe) {
 		struct intel_crtc *crtc = intel_crtc_for_pipe(display, pipe);
@@ -65,8 +66,8 @@ void intel_link_bw_init_limits(struct intel_atomic_state *state,
 
 		if (state->base.duplicated && crtc_state) {
 			limits->max_bpp_x16[pipe] = crtc_state->max_link_bpp_x16;
-			if (crtc_state->fec_enable)
-				limits->force_fec_pipes |= BIT(pipe);
+			if (intel_dsc_enabled_on_link(crtc_state))
+				limits->link_dsc_pipes |= BIT(pipe);
 		} else {
 			limits->max_bpp_x16[pipe] = INT_MAX;
 		}
@@ -265,10 +266,10 @@ assert_link_limit_change_valid(struct intel_display *display,
 	bool bpps_changed = false;
 	enum pipe pipe;
 
-	/* FEC can't be forced off after it was forced on. */
+	/* DSC can't be disabled after it was enabled. */
 	if (drm_WARN_ON(display->drm,
-			(old_limits->force_fec_pipes & new_limits->force_fec_pipes) !=
-			old_limits->force_fec_pipes))
+			(old_limits->link_dsc_pipes & new_limits->link_dsc_pipes) !=
+			old_limits->link_dsc_pipes))
 		return false;
 
 	for_each_pipe(display, pipe) {
@@ -286,8 +287,8 @@ assert_link_limit_change_valid(struct intel_display *display,
 	/* At least one limit must change. */
 	if (drm_WARN_ON(display->drm,
 			!bpps_changed &&
-			new_limits->force_fec_pipes ==
-			old_limits->force_fec_pipes))
+			new_limits->link_dsc_pipes ==
+			old_limits->link_dsc_pipes))
 		return false;
 
 	return true;
diff --git a/drivers/gpu/drm/i915/display/intel_link_bw.h b/drivers/gpu/drm/i915/display/intel_link_bw.h
index 95ab7c50c61d..cb18e171037c 100644
--- a/drivers/gpu/drm/i915/display/intel_link_bw.h
+++ b/drivers/gpu/drm/i915/display/intel_link_bw.h
@@ -15,7 +15,7 @@ struct intel_connector;
 struct intel_crtc_state;
 
 struct intel_link_bw_limits {
-	u8 force_fec_pipes;
+	u8 link_dsc_pipes;
 	u8 bpp_limit_reached_pipes;
 	/* in 1/16 bpp units */
 	int max_bpp_x16[I915_MAX_PIPES];
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index d56026c4efdd..9ceabbc981a1 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -31,10 +31,10 @@
 #include <drm/drm_edid.h>
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_hdmi.h"
 #include "intel_lspcon.h"
diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy.c b/drivers/gpu/drm/i915/display/intel_lt_phy.c
new file mode 100644
index 000000000000..af48d6cde226
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_lt_phy.c
@@ -0,0 +1,2000 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#include <drm/drm_print.h>
+
+#include "i915_reg.h"
+#include "i915_utils.h"
+#include "intel_cx0_phy.h"
+#include "intel_cx0_phy_regs.h"
+#include "intel_ddi.h"
+#include "intel_ddi_buf_trans.h"
+#include "intel_de.h"
+#include "intel_display.h"
+#include "intel_display_types.h"
+#include "intel_dpll_mgr.h"
+#include "intel_hdmi.h"
+#include "intel_lt_phy.h"
+#include "intel_lt_phy_regs.h"
+#include "intel_panel.h"
+#include "intel_psr.h"
+#include "intel_tc.h"
+
+#define for_each_lt_phy_lane_in_mask(__lane_mask, __lane) \
+	for ((__lane) = 0; (__lane) < 2; (__lane)++) \
+		for_each_if((__lane_mask) & BIT(__lane))
+
+#define INTEL_LT_PHY_LANE0		BIT(0)
+#define INTEL_LT_PHY_LANE1		BIT(1)
+#define INTEL_LT_PHY_BOTH_LANES		(INTEL_LT_PHY_LANE1 |\
+					 INTEL_LT_PHY_LANE0)
+#define MODE_DP				3
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_rbr = {
+	.clock = 162000,
+	.config = {
+		0x83,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x5,  0xa,  0x2a, 0x20 },
+		{ 0x80, 0x0,  0x0,  0x0  },
+		{ 0x4,  0x4,  0x82, 0x28 },
+		{ 0xfa, 0x16, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x5,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x4b, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0a },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_hbr1 = {
+	.clock = 270000,
+	.config = {
+		0x8b,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x3,  0xca, 0x34, 0xa0 },
+		{ 0xe0, 0x0,  0x0,  0x0  },
+		{ 0x5,  0x4,  0x81, 0xad },
+		{ 0xfa, 0x11, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x7,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x43, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0d },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_hbr2 = {
+	.clock = 540000,
+	.config = {
+		0x93,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x1,  0x4d, 0x34, 0xa0 },
+		{ 0xe0, 0x0,  0x0,  0x0  },
+		{ 0xa,  0x4,  0x81, 0xda },
+		{ 0xfa, 0x11, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x7,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x43, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0d },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_hbr3 = {
+	.clock = 810000,
+	.config = {
+		0x9b,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x1,  0x4a, 0x34, 0xa0 },
+		{ 0xe0, 0x0,  0x0,  0x0  },
+		{ 0x5,  0x4,  0x80, 0xa8 },
+		{ 0xfa, 0x11, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x7,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x43, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0d },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_uhbr10 = {
+	.clock = 1000000,
+	.config = {
+		0x43,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x85,
+		0x85,
+		0x85,
+		0x85,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x1,  0xa,  0x20, 0x80 },
+		{ 0x6a, 0xaa, 0xaa, 0xab },
+		{ 0x0,  0x3,  0x4,  0x94 },
+		{ 0xfa, 0x1c, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x4,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x45, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x14, 0x2a, 0x14 },
+		{ 0x0,  0x5b, 0xe0, 0x8  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_uhbr13_5 = {
+	.clock = 1350000,
+	.config = {
+		0xcb,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x2,  0x9,  0x2b, 0xe0 },
+		{ 0x90, 0x0,  0x0,  0x0  },
+		{ 0x8,  0x4,  0x80, 0xe0 },
+		{ 0xfa, 0x15, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x6,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x49, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x57, 0xe0, 0x0c },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_dp_uhbr20 = {
+	.clock = 2000000,
+	.config = {
+		0x53,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x85,
+		0x85,
+		0x85,
+		0x85,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+		0x86,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x1,  0xa,  0x20, 0x80 },
+		{ 0x6a, 0xaa, 0xaa, 0xab },
+		{ 0x0,  0x3,  0x4,  0x94 },
+		{ 0xfa, 0x1c, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x4,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x45, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x14, 0x2a, 0x14 },
+		{ 0x0,  0x5b, 0xe0, 0x8  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state * const xe3plpd_lt_dp_tables[] = {
+	&xe3plpd_lt_dp_rbr,
+	&xe3plpd_lt_dp_hbr1,
+	&xe3plpd_lt_dp_hbr2,
+	&xe3plpd_lt_dp_hbr3,
+	&xe3plpd_lt_dp_uhbr10,
+	&xe3plpd_lt_dp_uhbr13_5,
+	&xe3plpd_lt_dp_uhbr20,
+	NULL,
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_edp_2_16 = {
+	.clock = 216000,
+	.config = {
+		0xa3,
+		0x2d,
+		0x1,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x3,  0xca, 0x2a, 0x20 },
+		{ 0x80, 0x0,  0x0,  0x0  },
+		{ 0x6,  0x4,  0x81, 0xbc },
+		{ 0xfa, 0x16, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x5,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x4b, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0a },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_edp_2_43 = {
+	.clock = 243000,
+	.config = {
+		0xab,
+		0x2d,
+		0x1,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x3,  0xca, 0x2f, 0x60 },
+		{ 0xb0, 0x0,  0x0,  0x0  },
+		{ 0x6,  0x4,  0x81, 0xbc },
+		{ 0xfa, 0x13, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x6,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x47, 0x48, 0x0,  0x0  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0c },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_edp_3_24 = {
+	.clock = 324000,
+	.config = {
+		0xb3,
+		0x2d,
+		0x1,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x2,  0x8a, 0x2a, 0x20 },
+		{ 0x80, 0x0,  0x0,  0x0  },
+		{ 0x6,  0x4,  0x81, 0x28 },
+		{ 0xfa, 0x16, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x5,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x4b, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0a },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_edp_4_32 = {
+	.clock = 432000,
+	.config = {
+		0xbb,
+		0x2d,
+		0x1,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x1,  0x4d, 0x2a, 0x20 },
+		{ 0x80, 0x0,  0x0,  0x0  },
+		{ 0xc,  0x4,  0x81, 0xbc },
+		{ 0xfa, 0x16, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x5,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x4b, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x5b, 0xe0, 0x0a },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_edp_6_75 = {
+	.clock = 675000,
+	.config = {
+		0xdb,
+		0x2d,
+		0x1,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x1,  0x4a, 0x2b, 0xe0 },
+		{ 0x90, 0x0,  0x0,  0x0  },
+		{ 0x6,  0x4,  0x80, 0xa8 },
+		{ 0xfa, 0x15, 0x83, 0x11 },
+		{ 0x80, 0x0f, 0xf9, 0x53 },
+		{ 0x84, 0x26, 0x6,  0x4  },
+		{ 0x0,  0xe0, 0x1,  0x0  },
+		{ 0x49, 0x48, 0x0,  0x0  },
+		{ 0x27, 0x8,  0x0,  0x0  },
+		{ 0x5a, 0x13, 0x29, 0x13 },
+		{ 0x0,  0x57, 0xe0, 0x0c },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state * const xe3plpd_lt_edp_tables[] = {
+	&xe3plpd_lt_dp_rbr,
+	&xe3plpd_lt_edp_2_16,
+	&xe3plpd_lt_edp_2_43,
+	&xe3plpd_lt_dp_hbr1,
+	&xe3plpd_lt_edp_3_24,
+	&xe3plpd_lt_edp_4_32,
+	&xe3plpd_lt_dp_hbr2,
+	&xe3plpd_lt_edp_6_75,
+	&xe3plpd_lt_dp_hbr3,
+	NULL,
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_hdmi_252 = {
+	.clock = 25200,
+	.config = {
+		0x84,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x0c, 0x15, 0x27, 0x60 },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x8,  0x4,  0x98, 0x28 },
+		{ 0x42, 0x0,  0x84, 0x10 },
+		{ 0x80, 0x0f, 0xd9, 0xb5 },
+		{ 0x86, 0x0,  0x0,  0x0  },
+		{ 0x1,  0xa0, 0x1,  0x0  },
+		{ 0x4b, 0x0,  0x0,  0x0  },
+		{ 0x28, 0x0,  0x0,  0x0  },
+		{ 0x0,  0x14, 0x2a, 0x14 },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_hdmi_272 = {
+	.clock = 27200,
+	.config = {
+		0x84,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x0b, 0x15, 0x26, 0xa0 },
+		{ 0x60, 0x0,  0x0,  0x0  },
+		{ 0x8,  0x4,  0x96, 0x28 },
+		{ 0xfa, 0x0c, 0x84, 0x11 },
+		{ 0x80, 0x0f, 0xd9, 0x53 },
+		{ 0x86, 0x0,  0x0,  0x0  },
+		{ 0x1,  0xa0, 0x1,  0x0  },
+		{ 0x4b, 0x0,  0x0,  0x0  },
+		{ 0x28, 0x0,  0x0,  0x0  },
+		{ 0x0,  0x14, 0x2a, 0x14 },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_hdmi_742p5 = {
+	.clock = 74250,
+	.config = {
+		0x84,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x4,  0x15, 0x26, 0xa0 },
+		{ 0x60, 0x0,  0x0,  0x0  },
+		{ 0x8,  0x4,  0x88, 0x28 },
+		{ 0xfa, 0x0c, 0x84, 0x11 },
+		{ 0x80, 0x0f, 0xd9, 0x53 },
+		{ 0x86, 0x0,  0x0,  0x0  },
+		{ 0x1,  0xa0, 0x1,  0x0  },
+		{ 0x4b, 0x0,  0x0,  0x0  },
+		{ 0x28, 0x0,  0x0,  0x0  },
+		{ 0x0,  0x14, 0x2a, 0x14 },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_hdmi_1p485 = {
+	.clock = 148500,
+	.config = {
+		0x84,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x2,  0x15, 0x26, 0xa0 },
+		{ 0x60, 0x0,  0x0,  0x0  },
+		{ 0x8,  0x4,  0x84, 0x28 },
+		{ 0xfa, 0x0c, 0x84, 0x11 },
+		{ 0x80, 0x0f, 0xd9, 0x53 },
+		{ 0x86, 0x0,  0x0,  0x0  },
+		{ 0x1,  0xa0, 0x1,  0x0  },
+		{ 0x4b, 0x0,  0x0,  0x0  },
+		{ 0x28, 0x0,  0x0,  0x0  },
+		{ 0x0,  0x14, 0x2a, 0x14 },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state xe3plpd_lt_hdmi_5p94 = {
+	.clock = 594000,
+	.config = {
+		0x84,
+		0x2d,
+		0x0,
+	},
+	.addr_msb = {
+		0x87,
+		0x87,
+		0x87,
+		0x87,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+		0x88,
+	},
+	.addr_lsb = {
+		0x10,
+		0x0c,
+		0x14,
+		0xe4,
+		0x0c,
+		0x10,
+		0x14,
+		0x18,
+		0x48,
+		0x40,
+		0x4c,
+		0x24,
+		0x44,
+	},
+	.data = {
+		{ 0x0,  0x4c, 0x2,  0x0  },
+		{ 0x0,  0x95, 0x26, 0xa0 },
+		{ 0x60, 0x0,  0x0,  0x0  },
+		{ 0x8,  0x4,  0x81, 0x28 },
+		{ 0xfa, 0x0c, 0x84, 0x11 },
+		{ 0x80, 0x0f, 0xd9, 0x53 },
+		{ 0x86, 0x0,  0x0,  0x0  },
+		{ 0x1,  0xa0, 0x1,  0x0  },
+		{ 0x4b, 0x0,  0x0,  0x0  },
+		{ 0x28, 0x0,  0x0,  0x0  },
+		{ 0x0,  0x14, 0x2a, 0x14 },
+		{ 0x0,  0x0,  0x0,  0x0  },
+		{ 0x0,  0x0,  0x0,  0x0  },
+	},
+};
+
+static const struct intel_lt_phy_pll_state * const xe3plpd_lt_hdmi_tables[] = {
+	&xe3plpd_lt_hdmi_252,
+	&xe3plpd_lt_hdmi_272,
+	&xe3plpd_lt_hdmi_742p5,
+	&xe3plpd_lt_hdmi_1p485,
+	&xe3plpd_lt_hdmi_5p94,
+	NULL,
+};
+
+static u8 intel_lt_phy_get_owned_lane_mask(struct intel_encoder *encoder)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+	if (!intel_tc_port_in_dp_alt_mode(dig_port))
+		return INTEL_LT_PHY_BOTH_LANES;
+
+	return intel_tc_port_max_lane_count(dig_port) > 2
+		? INTEL_LT_PHY_BOTH_LANES : INTEL_LT_PHY_LANE0;
+}
+
+static u8 intel_lt_phy_read(struct intel_encoder *encoder, u8 lane_mask, u16 addr)
+{
+	return intel_cx0_read(encoder, lane_mask, addr);
+}
+
+static void intel_lt_phy_write(struct intel_encoder *encoder,
+			       u8 lane_mask, u16 addr, u8 data, bool committed)
+{
+	intel_cx0_write(encoder, lane_mask, addr, data, committed);
+}
+
+static void intel_lt_phy_rmw(struct intel_encoder *encoder,
+			     u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed)
+{
+	intel_cx0_rmw(encoder, lane_mask, addr, clear, set, committed);
+}
+
+static void intel_lt_phy_clear_status_p2p(struct intel_encoder *encoder,
+					  int lane)
+{
+	struct intel_display *display = to_intel_display(encoder);
+
+	intel_de_rmw(display,
+		     XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(encoder->port, lane),
+		     XELPDP_PORT_P2M_RESPONSE_READY, 0);
+}
+
+static void
+assert_dc_off(struct intel_display *display)
+{
+	bool enabled;
+
+	enabled = intel_display_power_is_enabled(display, POWER_DOMAIN_DC_OFF);
+	drm_WARN_ON(display->drm, !enabled);
+}
+
+static int __intel_lt_phy_p2p_write_once(struct intel_encoder *encoder,
+					 int lane, u16 addr, u8 data,
+					 i915_reg_t mac_reg_addr,
+					 u8 expected_mac_val)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	enum port port = encoder->port;
+	enum phy phy = intel_encoder_to_phy(encoder);
+	int ack;
+	u32 val;
+
+	if (intel_de_wait_for_clear(display, XELPDP_PORT_M2P_MSGBUS_CTL(display, port, lane),
+				    XELPDP_PORT_P2P_TRANSACTION_PENDING,
+				    XELPDP_MSGBUS_TIMEOUT_SLOW)) {
+		drm_dbg_kms(display->drm,
+			    "PHY %c Timeout waiting for previous transaction to complete. Resetting bus.\n",
+			    phy_name(phy));
+		intel_cx0_bus_reset(encoder, lane);
+		return -ETIMEDOUT;
+	}
+
+	intel_de_rmw(display, XELPDP_PORT_P2M_MSGBUS_STATUS(display, port, lane), 0, 0);
+
+	intel_de_write(display, XELPDP_PORT_M2P_MSGBUS_CTL(display, port, lane),
+		       XELPDP_PORT_P2P_TRANSACTION_PENDING |
+		       XELPDP_PORT_M2P_COMMAND_WRITE_COMMITTED |
+		       XELPDP_PORT_M2P_DATA(data) |
+		       XELPDP_PORT_M2P_ADDRESS(addr));
+
+	ack = intel_cx0_wait_for_ack(encoder, XELPDP_PORT_P2M_COMMAND_WRITE_ACK, lane, &val);
+	if (ack < 0)
+		return ack;
+
+	if (val & XELPDP_PORT_P2M_ERROR_SET) {
+		drm_dbg_kms(display->drm,
+			    "PHY %c Error occurred during P2P write command. Status: 0x%x\n",
+			    phy_name(phy), val);
+		intel_lt_phy_clear_status_p2p(encoder, lane);
+		intel_cx0_bus_reset(encoder, lane);
+		return -EINVAL;
+	}
+
+	/*
+	 * RE-VISIT:
+	 * This needs to be added to give PHY time to set everything up this was a requirement
+	 * to get the display up and running
+	 * This is the time PHY takes to settle down after programming the PHY.
+	 */
+	udelay(150);
+	intel_clear_response_ready_flag(encoder, lane);
+	intel_lt_phy_clear_status_p2p(encoder, lane);
+
+	return 0;
+}
+
+static void __intel_lt_phy_p2p_write(struct intel_encoder *encoder,
+				     int lane, u16 addr, u8 data,
+				     i915_reg_t mac_reg_addr,
+				     u8 expected_mac_val)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	enum phy phy = intel_encoder_to_phy(encoder);
+	int i, status;
+
+	assert_dc_off(display);
+
+	/* 3 tries is assumed to be enough to write successfully */
+	for (i = 0; i < 3; i++) {
+		status = __intel_lt_phy_p2p_write_once(encoder, lane, addr, data, mac_reg_addr,
+						       expected_mac_val);
+
+		if (status == 0)
+			return;
+	}
+
+	drm_err_once(display->drm,
+		     "PHY %c P2P Write %04x failed after %d retries.\n", phy_name(phy), addr, i);
+}
+
+static void intel_lt_phy_p2p_write(struct intel_encoder *encoder,
+				   u8 lane_mask, u16 addr, u8 data,
+				   i915_reg_t mac_reg_addr,
+				   u8 expected_mac_val)
+{
+	int lane;
+
+	for_each_lt_phy_lane_in_mask(lane_mask, lane)
+		__intel_lt_phy_p2p_write(encoder, lane, addr, data, mac_reg_addr, expected_mac_val);
+}
+
+static void
+intel_lt_phy_setup_powerdown(struct intel_encoder *encoder, u8 lane_count)
+{
+	/*
+	 * The new PORT_BUF_CTL6 stuff for dc5 entry and exit needs to be handled
+	 * by dmc firmware not explicitly mentioned in Bspec. This leaves this
+	 * function as a wrapper only but keeping it expecting future changes.
+	 */
+	intel_cx0_setup_powerdown(encoder);
+}
+
+static void
+intel_lt_phy_powerdown_change_sequence(struct intel_encoder *encoder,
+				       u8 lane_mask, u8 state)
+{
+	intel_cx0_powerdown_change_sequence(encoder, lane_mask, state);
+}
+
+static void
+intel_lt_phy_lane_reset(struct intel_encoder *encoder,
+			u8 lane_count)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	enum port port = encoder->port;
+	enum phy phy = intel_encoder_to_phy(encoder);
+	u8 owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder);
+	u32 lane_pipe_reset = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+				? XELPDP_LANE_PIPE_RESET(0) | XELPDP_LANE_PIPE_RESET(1)
+				: XELPDP_LANE_PIPE_RESET(0);
+	u32 lane_phy_current_status = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+					? (XELPDP_LANE_PHY_CURRENT_STATUS(0) |
+					   XELPDP_LANE_PHY_CURRENT_STATUS(1))
+					: XELPDP_LANE_PHY_CURRENT_STATUS(0);
+	u32 lane_phy_pulse_status = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+					? (XE3PLPDP_LANE_PHY_PULSE_STATUS(0) |
+					   XE3PLPDP_LANE_PHY_PULSE_STATUS(1))
+					: XE3PLPDP_LANE_PHY_PULSE_STATUS(0);
+
+	intel_de_rmw(display, XE3PLPD_PORT_BUF_CTL5(port),
+		     XE3PLPD_MACCLK_RATE_MASK, XE3PLPD_MACCLK_RATE_DEF);
+
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL1(display, port),
+		     XE3PLPDP_PHY_MODE_MASK, XE3PLPDP_PHY_MODE_DP);
+
+	intel_lt_phy_setup_powerdown(encoder, lane_count);
+	intel_lt_phy_powerdown_change_sequence(encoder, owned_lane_mask,
+					       XELPDP_P2_STATE_RESET);
+
+	intel_de_rmw(display, XE3PLPD_PORT_BUF_CTL5(port),
+		     XE3PLPD_MACCLK_RESET_0, 0);
+
+	intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+		     XELPDP_LANE_PCLK_PLL_REQUEST(0),
+		     XELPDP_LANE_PCLK_PLL_REQUEST(0));
+
+	if (intel_de_wait_custom(display, XELPDP_PORT_CLOCK_CTL(display, port),
+				 XELPDP_LANE_PCLK_PLL_ACK(0),
+				 XELPDP_LANE_PCLK_PLL_ACK(0),
+				 XE3PLPD_MACCLK_TURNON_LATENCY_US,
+				 XE3PLPD_MACCLK_TURNON_LATENCY_MS, NULL))
+		drm_warn(display->drm, "PHY %c PLL MacCLK assertion Ack not done after %dus.\n",
+			 phy_name(phy), XE3PLPD_MACCLK_TURNON_LATENCY_MS * 1000);
+
+	intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+		     XELPDP_FORWARD_CLOCK_UNGATE,
+		     XELPDP_FORWARD_CLOCK_UNGATE);
+
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
+		     lane_pipe_reset | lane_phy_pulse_status, 0);
+
+	if (intel_de_wait_custom(display, XELPDP_PORT_BUF_CTL2(display, port),
+				 lane_phy_current_status, 0,
+				 XE3PLPD_RESET_END_LATENCY_US, 2, NULL))
+		drm_warn(display->drm,
+			 "PHY %c failed to bring out of Lane reset after %dus.\n",
+			 phy_name(phy), XE3PLPD_RESET_END_LATENCY_US);
+
+	if (intel_de_wait_custom(display, XELPDP_PORT_BUF_CTL2(display, port),
+				 lane_phy_pulse_status, lane_phy_pulse_status,
+				 XE3PLPD_RATE_CALIB_DONE_LATENCY_US, 0, NULL))
+		drm_warn(display->drm, "PHY %c PLL rate not changed after %dus.\n",
+			 phy_name(phy), XE3PLPD_RATE_CALIB_DONE_LATENCY_US);
+
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port), lane_phy_pulse_status, 0);
+}
+
+static void
+intel_lt_phy_program_port_clock_ctl(struct intel_encoder *encoder,
+				    const struct intel_crtc_state *crtc_state,
+				    bool lane_reversal)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	u32 val = 0;
+
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL1(display, encoder->port),
+		     XELPDP_PORT_REVERSAL,
+		     lane_reversal ? XELPDP_PORT_REVERSAL : 0);
+
+	val |= XELPDP_FORWARD_CLOCK_UNGATE;
+
+	/*
+	 * We actually mean MACCLK here and not MAXPCLK when using LT Phy
+	 * but since the register bits still remain the same we use
+	 * the same definition
+	 */
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) &&
+	    intel_hdmi_is_frl(crtc_state->port_clock))
+		val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_DIV18CLK);
+	else
+		val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_MAXPCLK);
+
+	 /* DP2.0 10G and 20G rates enable MPLLA*/
+	if (crtc_state->port_clock == 1000000 || crtc_state->port_clock == 2000000)
+		val |= XELPDP_SSC_ENABLE_PLLA;
+	else
+		val |= crtc_state->dpll_hw_state.ltpll.ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0;
+
+	intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, encoder->port),
+		     XELPDP_LANE1_PHY_CLOCK_SELECT | XELPDP_FORWARD_CLOCK_UNGATE |
+		     XELPDP_DDI_CLOCK_SELECT_MASK(display) | XELPDP_SSC_ENABLE_PLLA |
+		     XELPDP_SSC_ENABLE_PLLB, val);
+}
+
+static u32 intel_lt_phy_get_dp_clock(u8 rate)
+{
+	switch (rate) {
+	case 0:
+		return 162000;
+	case 1:
+		return 270000;
+	case 2:
+		return 540000;
+	case 3:
+		return 810000;
+	case 4:
+		return 216000;
+	case 5:
+		return 243000;
+	case 6:
+		return 324000;
+	case 7:
+		return 432000;
+	case 8:
+		return 1000000;
+	case 9:
+		return 1350000;
+	case 10:
+		return 2000000;
+	case 11:
+		return 675000;
+	default:
+		MISSING_CASE(rate);
+		return 0;
+	}
+}
+
+static bool
+intel_lt_phy_config_changed(struct intel_encoder *encoder,
+			    const struct intel_crtc_state *crtc_state)
+{
+	u8 val, rate;
+	u32 clock;
+
+	val = intel_lt_phy_read(encoder, INTEL_LT_PHY_LANE0,
+				LT_PHY_VDR_0_CONFIG);
+	rate = REG_FIELD_GET8(LT_PHY_VDR_RATE_ENCODING_MASK, val);
+
+	/*
+	 * The only time we do not reconfigure the PLL is when we are
+	 * using 1.62 Gbps clock since PHY PLL defaults to that
+	 * otherwise we always need to reconfigure it.
+	 */
+	if (intel_crtc_has_dp_encoder(crtc_state)) {
+		clock = intel_lt_phy_get_dp_clock(rate);
+		if (crtc_state->port_clock == 1620000 && crtc_state->port_clock == clock)
+			return false;
+	}
+
+	return true;
+}
+
+static intel_wakeref_t intel_lt_phy_transaction_begin(struct intel_encoder *encoder)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	intel_wakeref_t wakeref;
+
+	intel_psr_pause(intel_dp);
+	wakeref = intel_display_power_get(display, POWER_DOMAIN_DC_OFF);
+
+	return wakeref;
+}
+
+static void intel_lt_phy_transaction_end(struct intel_encoder *encoder, intel_wakeref_t wakeref)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+	intel_psr_resume(intel_dp);
+	intel_display_power_put(display, POWER_DOMAIN_DC_OFF, wakeref);
+}
+
+static const struct intel_lt_phy_pll_state * const *
+intel_lt_phy_pll_tables_get(struct intel_crtc_state *crtc_state,
+			    struct intel_encoder *encoder)
+{
+	if (intel_crtc_has_dp_encoder(crtc_state)) {
+		if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+			return xe3plpd_lt_edp_tables;
+
+		return xe3plpd_lt_dp_tables;
+	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
+		return xe3plpd_lt_hdmi_tables;
+	}
+
+	MISSING_CASE(encoder->type);
+	return NULL;
+}
+
+static bool
+intel_lt_phy_pll_is_ssc_enabled(struct intel_crtc_state *crtc_state,
+				struct intel_encoder *encoder)
+{
+	struct intel_display *display = to_intel_display(encoder);
+
+	if (intel_crtc_has_dp_encoder(crtc_state)) {
+		if (intel_panel_use_ssc(display)) {
+			struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+			return (intel_dp->dpcd[DP_MAX_DOWNSPREAD] & DP_MAX_DOWNSPREAD_0_5);
+		}
+	}
+
+	return false;
+}
+
+static int
+intel_lt_phy_calc_hdmi_port_clock(const struct intel_lt_phy_pll_state *lt_state)
+{
+#define REF_CLK_KHZ 38400
+#define REGVAL(i) (				\
+	(lt_state->data[i][3])		|	\
+	(lt_state->data[i][2] << 8)	|	\
+	(lt_state->data[i][1] << 16)	|	\
+	(lt_state->data[i][0] << 24)		\
+)
+
+	int clk = 0;
+	u32 d8, pll_reg_5, pll_reg_3, pll_reg_57, m2div_frac, m2div_int;
+	u64 temp0, temp1;
+	/*
+	 * The algorithm uses '+' to combine bitfields when
+	 * constructing PLL_reg3 and PLL_reg57:
+	 * PLL_reg57 = (D7 << 24) + (postdiv << 15) + (D8 << 7) + D6_new;
+	 * PLL_reg3 = (D4 << 21) + (D3 << 18) + (D1 << 15) + (m2div_int << 5);
+	 *
+	 * However, this is likely intended to be a bitwise OR operation,
+	 * as each field occupies distinct, non-overlapping bits in the register.
+	 *
+	 * PLL_reg57 is composed of following fields packed into a 32-bit value:
+	 * - D7: max value 10 -> fits in 4 bits -> placed at bits 24-27
+	 * - postdiv: max value 9 -> fits in 4 bits -> placed at bits 15-18
+	 * - D8: derived from loop_cnt / 2, max 127 -> fits in 7 bits
+	 *	(though 8 bits are given to it) -> placed at bits 7-14
+	 * - D6_new: fits in lower 7 bits -> placed at bits 0-6
+	 * PLL_reg57 = (D7 << 24) | (postdiv << 15) | (D8 << 7) | D6_new;
+	 *
+	 * Similarly, PLL_reg3 is packed as:
+	 * - D4: max value 256 -> fits in 9 bits -> placed at bits 21-29
+	 * - D3: max value 9 -> fits in 4 bits -> placed at bits 18-21
+	 * - D1: max value 2 -> fits in 2 bits -> placed at bits 15-16
+	 * - m2div_int: max value 511 -> fits in 9 bits (10 bits allocated)
+	 *   -> placed at bits 5-14
+	 * PLL_reg3 = (D4 << 21) | (D3 << 18) | (D1 << 15) | (m2div_int << 5);
+	 */
+	pll_reg_5 = REGVAL(2);
+	pll_reg_3 = REGVAL(1);
+	pll_reg_57 = REGVAL(3);
+	m2div_frac = pll_reg_5;
+
+	/*
+	 * From forward algorithm we know
+	 * m2div = 2 * m2
+	 * val = y * frequency * 5
+	 * So now,
+	 * frequency = (m2 * 2 * refclk_khz / (d8 * 10))
+	 * frequency = (m2div * refclk_khz / (d8 * 10))
+	 */
+	d8 = (pll_reg_57 & REG_GENMASK(14, 7)) >> 7;
+	m2div_int = (pll_reg_3  & REG_GENMASK(14, 5)) >> 5;
+	temp0 = ((u64)m2div_frac * REF_CLK_KHZ) >> 32;
+	temp1 = (u64)m2div_int * REF_CLK_KHZ;
+	if (d8 == 0)
+		return 0;
+
+	clk = div_u64((temp1 + temp0), d8 * 10);
+
+	return clk;
+}
+
+int
+intel_lt_phy_calc_port_clock(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state)
+{
+	int clk;
+	const struct intel_lt_phy_pll_state *lt_state =
+		&crtc_state->dpll_hw_state.ltpll;
+	u8 mode, rate;
+
+	mode = REG_FIELD_GET8(LT_PHY_VDR_MODE_ENCODING_MASK,
+			      lt_state->config[0]);
+	/*
+	 * For edp/dp read the clock value from the tables
+	 * and return the clock as the algorithm used for
+	 * calculating the port clock does not exactly matches
+	 * with edp/dp clock.
+	 */
+	if (mode == MODE_DP) {
+		rate = REG_FIELD_GET8(LT_PHY_VDR_RATE_ENCODING_MASK,
+				      lt_state->config[0]);
+		clk = intel_lt_phy_get_dp_clock(rate);
+	} else {
+		clk = intel_lt_phy_calc_hdmi_port_clock(lt_state);
+	}
+
+	return clk;
+}
+
+int
+intel_lt_phy_pll_calc_state(struct intel_crtc_state *crtc_state,
+			    struct intel_encoder *encoder)
+{
+	const struct intel_lt_phy_pll_state * const *tables;
+	int i;
+
+	tables = intel_lt_phy_pll_tables_get(crtc_state, encoder);
+	if (!tables)
+		return -EINVAL;
+
+	for (i = 0; tables[i]; i++) {
+		if (crtc_state->port_clock == tables[i]->clock) {
+			crtc_state->dpll_hw_state.ltpll = *tables[i];
+			if (intel_crtc_has_dp_encoder(crtc_state)) {
+				if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+					crtc_state->dpll_hw_state.ltpll.config[2] = 1;
+			}
+			crtc_state->dpll_hw_state.ltpll.ssc_enabled =
+				intel_lt_phy_pll_is_ssc_enabled(crtc_state, encoder);
+			return 0;
+		}
+	}
+
+	/* TODO: Add a function to compute the data for HDMI TMDS*/
+
+	return -EINVAL;
+}
+
+static void
+intel_lt_phy_program_pll(struct intel_encoder *encoder,
+			 const struct intel_crtc_state *crtc_state)
+{
+	u8 owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder);
+	int i, j, k;
+
+	intel_lt_phy_write(encoder, owned_lane_mask, LT_PHY_VDR_0_CONFIG,
+			   crtc_state->dpll_hw_state.ltpll.config[0], MB_WRITE_COMMITTED);
+	intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_1_CONFIG,
+			   crtc_state->dpll_hw_state.ltpll.config[1], MB_WRITE_COMMITTED);
+	intel_lt_phy_write(encoder, owned_lane_mask, LT_PHY_VDR_2_CONFIG,
+			   crtc_state->dpll_hw_state.ltpll.config[2], MB_WRITE_COMMITTED);
+
+	for (i = 0; i <= 12; i++) {
+		intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_X_ADDR_MSB(i),
+				   crtc_state->dpll_hw_state.ltpll.addr_msb[i],
+				   MB_WRITE_COMMITTED);
+		intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_X_ADDR_LSB(i),
+				   crtc_state->dpll_hw_state.ltpll.addr_lsb[i],
+				   MB_WRITE_COMMITTED);
+
+		for (j = 3, k = 0; j >= 0; j--, k++)
+			intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0,
+					   LT_PHY_VDR_X_DATAY(i, j),
+					   crtc_state->dpll_hw_state.ltpll.data[i][k],
+					   MB_WRITE_COMMITTED);
+	}
+}
+
+static void
+intel_lt_phy_enable_disable_tx(struct intel_encoder *encoder,
+			       const struct intel_crtc_state *crtc_state)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+	bool lane_reversal = dig_port->lane_reversal;
+	u8 lane_count = crtc_state->lane_count;
+	bool is_dp_alt =
+		intel_tc_port_in_dp_alt_mode(dig_port);
+	enum intel_tc_pin_assignment tc_pin =
+		intel_tc_port_get_pin_assignment(dig_port);
+	u8 transmitter_mask = 0;
+
+	/*
+	 * We have a two transmitters per lane and total of 2 PHY lanes so a total
+	 * of 4 transmitters. We prepare a mask of the lanes that need to be activated
+	 * and the transmitter which need to be activated for each lane. TX 0,1 correspond
+	 * to LANE0 and TX 2, 3 correspond to LANE1.
+	 */
+
+	switch (lane_count) {
+	case 1:
+		transmitter_mask = lane_reversal ? REG_BIT8(3) : REG_BIT8(0);
+		if (is_dp_alt) {
+			if (tc_pin == INTEL_TC_PIN_ASSIGNMENT_D)
+				transmitter_mask = REG_BIT8(0);
+			else
+				transmitter_mask = REG_BIT8(1);
+		}
+		break;
+	case 2:
+		transmitter_mask = lane_reversal ? REG_GENMASK8(3, 2) : REG_GENMASK8(1, 0);
+		if (is_dp_alt)
+			transmitter_mask = REG_GENMASK8(1, 0);
+		break;
+	case 3:
+		transmitter_mask = lane_reversal ? REG_GENMASK8(3, 1) : REG_GENMASK8(2, 0);
+		if (is_dp_alt)
+			transmitter_mask = REG_GENMASK8(2, 0);
+		break;
+	case 4:
+		transmitter_mask = REG_GENMASK8(3, 0);
+		break;
+	default:
+		MISSING_CASE(lane_count);
+		transmitter_mask = REG_GENMASK8(3, 0);
+		break;
+	}
+
+	if (transmitter_mask & BIT(0)) {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_TXY_CTL10(0),
+				       LT_PHY_TX_LANE_ENABLE, LT_PHY_TXY_CTL10_MAC(0),
+				       LT_PHY_TX_LANE_ENABLE);
+	} else {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_TXY_CTL10(0),
+				       0, LT_PHY_TXY_CTL10_MAC(0), 0);
+	}
+
+	if (transmitter_mask & BIT(1)) {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_TXY_CTL10(1),
+				       LT_PHY_TX_LANE_ENABLE, LT_PHY_TXY_CTL10_MAC(1),
+				       LT_PHY_TX_LANE_ENABLE);
+	} else {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_TXY_CTL10(1),
+				       0, LT_PHY_TXY_CTL10_MAC(1), 0);
+	}
+
+	if (transmitter_mask & BIT(2)) {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE1, LT_PHY_TXY_CTL10(0),
+				       LT_PHY_TX_LANE_ENABLE, LT_PHY_TXY_CTL10_MAC(0),
+				       LT_PHY_TX_LANE_ENABLE);
+	} else {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE1, LT_PHY_TXY_CTL10(0),
+				       0, LT_PHY_TXY_CTL10_MAC(0), 0);
+	}
+
+	if (transmitter_mask & BIT(3)) {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE1, LT_PHY_TXY_CTL10(1),
+				       LT_PHY_TX_LANE_ENABLE, LT_PHY_TXY_CTL10_MAC(1),
+				       LT_PHY_TX_LANE_ENABLE);
+	} else {
+		intel_lt_phy_p2p_write(encoder, INTEL_LT_PHY_LANE1, LT_PHY_TXY_CTL10(1),
+				       0, LT_PHY_TXY_CTL10_MAC(1), 0);
+	}
+}
+
+void intel_lt_phy_pll_enable(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+	bool lane_reversal = dig_port->lane_reversal;
+	u8 owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder);
+	enum phy phy = intel_encoder_to_phy(encoder);
+	enum port port = encoder->port;
+	intel_wakeref_t wakeref = 0;
+	u32 lane_phy_pulse_status = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+					? (XE3PLPDP_LANE_PHY_PULSE_STATUS(0) |
+					   XE3PLPDP_LANE_PHY_PULSE_STATUS(1))
+					: XE3PLPDP_LANE_PHY_PULSE_STATUS(0);
+	u8 rate_update;
+
+	wakeref = intel_lt_phy_transaction_begin(encoder);
+
+	/* 1. Enable MacCLK at default 162 MHz frequency. */
+	intel_lt_phy_lane_reset(encoder, crtc_state->lane_count);
+
+	/* 2. Program PORT_CLOCK_CTL register to configure clock muxes, gating, and SSC. */
+	intel_lt_phy_program_port_clock_ctl(encoder, crtc_state, lane_reversal);
+
+	/* 3. Change owned PHY lanes power to Ready state. */
+	intel_lt_phy_powerdown_change_sequence(encoder, owned_lane_mask,
+					       XELPDP_P2_STATE_READY);
+
+	/*
+	 * 4. Read the PHY message bus VDR register PHY_VDR_0_Config check enabled PLL type,
+	 * encoded rate and encoded mode.
+	 */
+	if (intel_lt_phy_config_changed(encoder, crtc_state)) {
+		/*
+		 * 5. Program the PHY internal PLL registers over PHY message bus for the desired
+		 * frequency and protocol type
+		 */
+		intel_lt_phy_program_pll(encoder, crtc_state);
+
+		/* 6. Use the P2P transaction flow */
+		/*
+		 * 6.1. Set the PHY VDR register 0xCC4[Rate Control VDR Update] = 1 over PHY message
+		 * bus for Owned PHY Lanes.
+		 */
+		/*
+		 * 6.2. Poll for P2P Transaction Ready = "1" and read the MAC message bus VDR
+		 * register at offset 0xC00 for Owned PHY Lanes*.
+		 */
+		/* 6.3. Clear P2P transaction Ready bit. */
+		intel_lt_phy_p2p_write(encoder, owned_lane_mask, LT_PHY_RATE_UPDATE,
+				       LT_PHY_RATE_CONTROL_VDR_UPDATE, LT_PHY_MAC_VDR,
+				       LT_PHY_PCLKIN_GATE);
+
+		/* 7. Program PORT_CLOCK_CTL[PCLK PLL Request LN0] = 0. */
+		intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+			     XELPDP_LANE_PCLK_PLL_REQUEST(0), 0);
+
+		/* 8. Poll for PORT_CLOCK_CTL[PCLK PLL Ack LN0]= 0. */
+		if (intel_de_wait_custom(display, XELPDP_PORT_CLOCK_CTL(display, port),
+					 XELPDP_LANE_PCLK_PLL_ACK(0), 0,
+					 XE3PLPD_MACCLK_TURNOFF_LATENCY_US, 0, NULL))
+			drm_warn(display->drm, "PHY %c PLL MacCLK Ack deassertion Timeout after %dus.\n",
+				 phy_name(phy), XE3PLPD_MACCLK_TURNOFF_LATENCY_US);
+
+		/*
+		 * 9. Follow the Display Voltage Frequency Switching - Sequence Before Frequency
+		 * Change. We handle this step in bxt_set_cdclk().
+		 */
+		/* 10. Program DDI_CLK_VALFREQ to match intended DDI clock frequency. */
+		intel_de_write(display, DDI_CLK_VALFREQ(encoder->port),
+			       crtc_state->port_clock);
+
+		/* 11. Program PORT_CLOCK_CTL[PCLK PLL Request LN0] = 1. */
+		intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+			     XELPDP_LANE_PCLK_PLL_REQUEST(0),
+			     XELPDP_LANE_PCLK_PLL_REQUEST(0));
+
+		/* 12. Poll for PORT_CLOCK_CTL[PCLK PLL Ack LN0]= 1. */
+		if (intel_de_wait_custom(display, XELPDP_PORT_CLOCK_CTL(display, port),
+					 XELPDP_LANE_PCLK_PLL_ACK(0),
+					 XELPDP_LANE_PCLK_PLL_ACK(0),
+					 XE3PLPD_MACCLK_TURNON_LATENCY_US, 2, NULL))
+			drm_warn(display->drm, "PHY %c PLL MacCLK Ack assertion Timeout after %dus.\n",
+				 phy_name(phy), XE3PLPD_MACCLK_TURNON_LATENCY_US);
+
+		/*
+		 * 13. Ungate the forward clock by setting
+		 * PORT_CLOCK_CTL[Forward Clock Ungate] = 1.
+		 */
+		intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+			     XELPDP_FORWARD_CLOCK_UNGATE,
+			     XELPDP_FORWARD_CLOCK_UNGATE);
+
+		/* 14. SW clears PORT_BUF_CTL2 [PHY Pulse Status]. */
+		intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
+			     lane_phy_pulse_status,
+			     lane_phy_pulse_status);
+		/*
+		 * 15. Clear the PHY VDR register 0xCC4[Rate Control VDR Update] over
+		 * PHY message bus for Owned PHY Lanes.
+		 */
+		rate_update = intel_lt_phy_read(encoder, INTEL_LT_PHY_LANE0, LT_PHY_RATE_UPDATE);
+		rate_update &= ~LT_PHY_RATE_CONTROL_VDR_UPDATE;
+		intel_lt_phy_write(encoder, owned_lane_mask, LT_PHY_RATE_UPDATE,
+				   rate_update, MB_WRITE_COMMITTED);
+
+		/* 16. Poll for PORT_BUF_CTL2 register PHY Pulse Status = 1 for Owned PHY Lanes. */
+		if (intel_de_wait_custom(display, XELPDP_PORT_BUF_CTL2(display, port),
+					 lane_phy_pulse_status, lane_phy_pulse_status,
+					 XE3PLPD_RATE_CALIB_DONE_LATENCY_US, 2, NULL))
+			drm_warn(display->drm, "PHY %c PLL rate not changed after %dus.\n",
+				 phy_name(phy), XE3PLPD_RATE_CALIB_DONE_LATENCY_US);
+
+		/* 17. SW clears PORT_BUF_CTL2 [PHY Pulse Status]. */
+		intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
+			     lane_phy_pulse_status,
+			     lane_phy_pulse_status);
+	} else {
+		intel_de_write(display, DDI_CLK_VALFREQ(encoder->port), crtc_state->port_clock);
+	}
+
+	/*
+	 * 18. Follow the Display Voltage Frequency Switching - Sequence After Frequency Change.
+	 * We handle this step in bxt_set_cdclk()
+	 */
+	/* 19. Move the PHY powerdown state to Active and program to enable/disable transmitters */
+	intel_lt_phy_powerdown_change_sequence(encoder, owned_lane_mask,
+					       XELPDP_P0_STATE_ACTIVE);
+
+	intel_lt_phy_enable_disable_tx(encoder, crtc_state);
+	intel_lt_phy_transaction_end(encoder, wakeref);
+}
+
+void intel_lt_phy_pll_disable(struct intel_encoder *encoder)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	enum phy phy = intel_encoder_to_phy(encoder);
+	enum port port = encoder->port;
+	intel_wakeref_t wakeref;
+	u8 owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder);
+	u32 lane_pipe_reset = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+				? (XELPDP_LANE_PIPE_RESET(0) |
+				   XELPDP_LANE_PIPE_RESET(1))
+				: XELPDP_LANE_PIPE_RESET(0);
+	u32 lane_phy_current_status = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+					? (XELPDP_LANE_PHY_CURRENT_STATUS(0) |
+					   XELPDP_LANE_PHY_CURRENT_STATUS(1))
+					: XELPDP_LANE_PHY_CURRENT_STATUS(0);
+	u32 lane_phy_pulse_status = owned_lane_mask == INTEL_LT_PHY_BOTH_LANES
+					? (XE3PLPDP_LANE_PHY_PULSE_STATUS(0) |
+					   XE3PLPDP_LANE_PHY_PULSE_STATUS(1))
+					: XE3PLPDP_LANE_PHY_PULSE_STATUS(0);
+
+	wakeref = intel_lt_phy_transaction_begin(encoder);
+
+	/* 1. Clear PORT_BUF_CTL2 [PHY Pulse Status]. */
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
+		     lane_phy_pulse_status,
+		     lane_phy_pulse_status);
+
+	/* 2. Set PORT_BUF_CTL2<port> Lane<PHY Lanes Owned> Pipe Reset to 1. */
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port), lane_pipe_reset,
+		     lane_pipe_reset);
+
+	/* 3. Poll for PORT_BUF_CTL2<port> Lane<PHY Lanes Owned> PHY Current Status == 1. */
+	if (intel_de_wait_custom(display, XELPDP_PORT_BUF_CTL2(display, port),
+				 lane_phy_current_status,
+				 lane_phy_current_status,
+				 XE3PLPD_RESET_START_LATENCY_US, 0, NULL))
+		drm_warn(display->drm,
+			 "PHY %c failed to reset Lane after %dms.\n",
+			 phy_name(phy), XE3PLPD_RESET_START_LATENCY_US);
+
+	/* 4. Clear for PHY pulse status on owned PHY lanes. */
+	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
+		     lane_phy_pulse_status,
+		     lane_phy_pulse_status);
+
+	/*
+	 * 5. Follow the Display Voltage Frequency Switching -
+	 * Sequence Before Frequency Change. We handle this step in bxt_set_cdclk().
+	 */
+	/* 6. Program PORT_CLOCK_CTL[PCLK PLL Request LN0] = 0. */
+	intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+		     XELPDP_LANE_PCLK_PLL_REQUEST(0), 0);
+
+	/* 7. Program DDI_CLK_VALFREQ to 0. */
+	intel_de_write(display, DDI_CLK_VALFREQ(encoder->port), 0);
+
+	/* 8. Poll for PORT_CLOCK_CTL[PCLK PLL Ack LN0]= 0. */
+	if (intel_de_wait_custom(display, XELPDP_PORT_CLOCK_CTL(display, port),
+				 XELPDP_LANE_PCLK_PLL_ACK(0), 0,
+				 XE3PLPD_MACCLK_TURNOFF_LATENCY_US, 0, NULL))
+		drm_warn(display->drm, "PHY %c PLL MacCLK Ack deassertion Timeout after %dus.\n",
+			 phy_name(phy), XE3PLPD_MACCLK_TURNOFF_LATENCY_US);
+
+	/*
+	 *  9. Follow the Display Voltage Frequency Switching -
+	 *  Sequence After Frequency Change. We handle this step in bxt_set_cdclk().
+	 */
+	/* 10. Program PORT_CLOCK_CTL register to disable and gate clocks. */
+	intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, port),
+		     XELPDP_DDI_CLOCK_SELECT_MASK(display) | XELPDP_FORWARD_CLOCK_UNGATE, 0);
+
+	/* 11. Program PORT_BUF_CTL5[MacCLK Reset_0] = 1 to assert MacCLK reset. */
+	intel_de_rmw(display, XE3PLPD_PORT_BUF_CTL5(port),
+		     XE3PLPD_MACCLK_RESET_0, XE3PLPD_MACCLK_RESET_0);
+
+	intel_lt_phy_transaction_end(encoder, wakeref);
+}
+
+void intel_lt_phy_set_signal_levels(struct intel_encoder *encoder,
+				    const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(encoder);
+	const struct intel_ddi_buf_trans *trans;
+	u8 owned_lane_mask;
+	intel_wakeref_t wakeref;
+	int n_entries, ln;
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+	if (intel_tc_port_in_tbt_alt_mode(dig_port))
+		return;
+
+	owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder);
+
+	wakeref = intel_lt_phy_transaction_begin(encoder);
+
+	trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries);
+	if (drm_WARN_ON_ONCE(display->drm, !trans)) {
+		intel_lt_phy_transaction_end(encoder, wakeref);
+		return;
+	}
+
+	for (ln = 0; ln < crtc_state->lane_count; ln++) {
+		int level = intel_ddi_level(encoder, crtc_state, ln);
+		int lane = ln / 2;
+		int tx = ln % 2;
+		u8 lane_mask = lane == 0 ? INTEL_LT_PHY_LANE0 : INTEL_LT_PHY_LANE1;
+
+		if (!(lane_mask & owned_lane_mask))
+			continue;
+
+		intel_lt_phy_rmw(encoder, lane_mask, LT_PHY_TXY_CTL8(tx),
+				 LT_PHY_TX_SWING_LEVEL_MASK | LT_PHY_TX_SWING_MASK,
+				 LT_PHY_TX_SWING_LEVEL(trans->entries[level].lt.txswing_level) |
+				 LT_PHY_TX_SWING(trans->entries[level].lt.txswing),
+				 MB_WRITE_COMMITTED);
+
+		intel_lt_phy_rmw(encoder, lane_mask, LT_PHY_TXY_CTL2(tx),
+				 LT_PHY_TX_CURSOR_MASK,
+				 LT_PHY_TX_CURSOR(trans->entries[level].lt.pre_cursor),
+				 MB_WRITE_COMMITTED);
+		intel_lt_phy_rmw(encoder, lane_mask, LT_PHY_TXY_CTL3(tx),
+				 LT_PHY_TX_CURSOR_MASK,
+				 LT_PHY_TX_CURSOR(trans->entries[level].lt.main_cursor),
+				 MB_WRITE_COMMITTED);
+		intel_lt_phy_rmw(encoder, lane_mask, LT_PHY_TXY_CTL4(tx),
+				 LT_PHY_TX_CURSOR_MASK,
+				 LT_PHY_TX_CURSOR(trans->entries[level].lt.post_cursor),
+				 MB_WRITE_COMMITTED);
+	}
+
+	intel_lt_phy_transaction_end(encoder, wakeref);
+}
+
+void intel_lt_phy_dump_hw_state(struct intel_display *display,
+				const struct intel_lt_phy_pll_state *hw_state)
+{
+	int i, j;
+
+	drm_dbg_kms(display->drm, "lt_phy_pll_hw_state:\n");
+	for (i = 0; i < 3; i++) {
+		drm_dbg_kms(display->drm, "config[%d] = 0x%.4x,\n",
+			    i, hw_state->config[i]);
+	}
+
+	for (i = 0; i <= 12; i++)
+		for (j = 3; j >= 0; j--)
+			drm_dbg_kms(display->drm, "vdr_data[%d][%d] = 0x%.4x,\n",
+				    i, j, hw_state->data[i][j]);
+}
+
+bool
+intel_lt_phy_pll_compare_hw_state(const struct intel_lt_phy_pll_state *a,
+				  const struct intel_lt_phy_pll_state *b)
+{
+	if (memcmp(&a->config, &b->config, sizeof(a->config)) != 0)
+		return false;
+
+	if (memcmp(&a->data, &b->data, sizeof(a->data)) != 0)
+		return false;
+
+	return true;
+}
+
+void intel_lt_phy_pll_readout_hw_state(struct intel_encoder *encoder,
+				       const struct intel_crtc_state *crtc_state,
+				       struct intel_lt_phy_pll_state *pll_state)
+{
+	u8 owned_lane_mask;
+	u8 lane;
+	intel_wakeref_t wakeref;
+	int i, j, k;
+
+	pll_state->tbt_mode = intel_tc_port_in_tbt_alt_mode(enc_to_dig_port(encoder));
+	if (pll_state->tbt_mode)
+		return;
+
+	owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder);
+	lane = owned_lane_mask & INTEL_LT_PHY_LANE0 ? : INTEL_LT_PHY_LANE1;
+	wakeref = intel_lt_phy_transaction_begin(encoder);
+
+	pll_state->config[0] = intel_lt_phy_read(encoder, lane, LT_PHY_VDR_0_CONFIG);
+	pll_state->config[1] = intel_lt_phy_read(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_1_CONFIG);
+	pll_state->config[2] = intel_lt_phy_read(encoder, lane, LT_PHY_VDR_2_CONFIG);
+
+	for (i = 0; i <= 12; i++) {
+		for (j = 3, k = 0; j >= 0; j--, k++)
+			pll_state->data[i][k] =
+				intel_lt_phy_read(encoder, INTEL_LT_PHY_LANE0,
+						  LT_PHY_VDR_X_DATAY(i, j));
+	}
+
+	pll_state->clock =
+		intel_lt_phy_calc_port_clock(encoder, crtc_state);
+	intel_lt_phy_transaction_end(encoder, wakeref);
+}
+
+void intel_lt_phy_pll_state_verify(struct intel_atomic_state *state,
+				   struct intel_crtc *crtc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_digital_port *dig_port;
+	const struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	struct intel_encoder *encoder;
+	struct intel_lt_phy_pll_state pll_hw_state = {};
+	const struct intel_lt_phy_pll_state *pll_sw_state = &new_crtc_state->dpll_hw_state.ltpll;
+	int clock;
+	int i, j;
+
+	if (DISPLAY_VER(display) < 35)
+		return;
+
+	if (!new_crtc_state->hw.active)
+		return;
+
+	/* intel_get_crtc_new_encoder() only works for modeset/fastset commits */
+	if (!intel_crtc_needs_modeset(new_crtc_state) &&
+	    !intel_crtc_needs_fastset(new_crtc_state))
+		return;
+
+	encoder = intel_get_crtc_new_encoder(state, new_crtc_state);
+	intel_lt_phy_pll_readout_hw_state(encoder, new_crtc_state, &pll_hw_state);
+	clock = intel_lt_phy_calc_port_clock(encoder, new_crtc_state);
+
+	dig_port = enc_to_dig_port(encoder);
+	if (intel_tc_port_in_tbt_alt_mode(dig_port))
+		return;
+
+	INTEL_DISPLAY_STATE_WARN(display, pll_hw_state.clock != clock,
+				 "[CRTC:%d:%s] mismatch in LT PHY: Register CLOCK (expected %d, found %d)",
+				 crtc->base.base.id, crtc->base.name,
+				 pll_sw_state->clock, pll_hw_state.clock);
+
+	for (i = 0; i < 3; i++) {
+		INTEL_DISPLAY_STATE_WARN(display, pll_hw_state.config[i] != pll_sw_state->config[i],
+					 "[CRTC:%d:%s] mismatch in LT PHY PLL CONFIG%d: (expected 0x%04x, found 0x%04x)",
+					 crtc->base.base.id, crtc->base.name, i,
+					 pll_sw_state->config[i], pll_hw_state.config[i]);
+	}
+
+	for (i = 0; i <= 12; i++) {
+		for (j = 3; j >= 0; j--)
+			INTEL_DISPLAY_STATE_WARN(display,
+						 pll_hw_state.data[i][j] !=
+						 pll_sw_state->data[i][j],
+						 "[CRTC:%d:%s] mismatch in LT PHY PLL DATA[%d][%d]: (expected 0x%04x, found 0x%04x)",
+						 crtc->base.base.id, crtc->base.name, i, j,
+						 pll_sw_state->data[i][j], pll_hw_state.data[i][j]);
+	}
+}
+
+void intel_xe3plpd_pll_enable(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+	if (intel_tc_port_in_tbt_alt_mode(dig_port))
+		intel_mtl_tbt_pll_enable(encoder, crtc_state);
+	else
+		intel_lt_phy_pll_enable(encoder, crtc_state);
+}
+
+void intel_xe3plpd_pll_disable(struct intel_encoder *encoder)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+	if (intel_tc_port_in_tbt_alt_mode(dig_port))
+		intel_mtl_tbt_pll_disable(encoder);
+	else
+		intel_lt_phy_pll_disable(encoder);
+
+}
diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy.h b/drivers/gpu/drm/i915/display/intel_lt_phy.h
new file mode 100644
index 000000000000..a538d4c69210
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_lt_phy.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_LT_PHY_H__
+#define __INTEL_LT_PHY_H__
+
+#include <linux/types.h>
+
+struct intel_atomic_state;
+struct intel_display;
+struct intel_encoder;
+struct intel_crtc_state;
+struct intel_crtc;
+struct intel_lt_phy_pll_state;
+
+void intel_lt_phy_pll_enable(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state);
+void intel_lt_phy_pll_disable(struct intel_encoder *encoder);
+int
+intel_lt_phy_pll_calc_state(struct intel_crtc_state *crtc_state,
+			    struct intel_encoder *encoder);
+int intel_lt_phy_calc_port_clock(struct intel_encoder *encoder,
+				 const struct intel_crtc_state *crtc_state);
+void intel_lt_phy_set_signal_levels(struct intel_encoder *encoder,
+				    const struct intel_crtc_state *crtc_state);
+void intel_lt_phy_dump_hw_state(struct intel_display *display,
+				const struct intel_lt_phy_pll_state *hw_state);
+bool
+intel_lt_phy_pll_compare_hw_state(const struct intel_lt_phy_pll_state *a,
+				  const struct intel_lt_phy_pll_state *b);
+void intel_lt_phy_pll_readout_hw_state(struct intel_encoder *encoder,
+				       const struct intel_crtc_state *crtc_state,
+				       struct intel_lt_phy_pll_state *pll_state);
+void intel_lt_phy_pll_state_verify(struct intel_atomic_state *state,
+				   struct intel_crtc *crtc);
+void intel_xe3plpd_pll_enable(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state);
+void intel_xe3plpd_pll_disable(struct intel_encoder *encoder);
+
+#define HAS_LT_PHY(display) (DISPLAY_VER(display) >= 35)
+
+#endif /* __INTEL_LT_PHY_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy_regs.h b/drivers/gpu/drm/i915/display/intel_lt_phy_regs.h
new file mode 100644
index 000000000000..9223487d764e
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_lt_phy_regs.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_LT_PHY_REGS_H__
+#define __INTEL_LT_PHY_REGS_H__
+
+#define XE3PLPD_MSGBUS_TIMEOUT_FAST_US	500
+#define XE3PLPD_MACCLK_TURNON_LATENCY_MS	1
+#define XE3PLPD_MACCLK_TURNON_LATENCY_US	21
+#define XE3PLPD_MACCLK_TURNOFF_LATENCY_US	1
+#define XE3PLPD_RATE_CALIB_DONE_LATENCY_US	50
+#define XE3PLPD_RESET_START_LATENCY_US	10
+#define XE3PLPD_PWRDN_TO_RDY_LATENCY_US	4
+#define XE3PLPD_RESET_END_LATENCY_US		200
+
+/* LT Phy MAC Register */
+#define LT_PHY_MAC_VDR			_MMIO(0xC00)
+#define    LT_PHY_PCLKIN_GATE		REG_BIT8(0)
+
+/* LT Phy Pipe Spec Registers */
+#define LT_PHY_TXY_CTL8(idx)		(0x408 + (0x200 * (idx)))
+#define  LT_PHY_TX_SWING_LEVEL_MASK	REG_GENMASK8(7, 4)
+#define  LT_PHY_TX_SWING_LEVEL(val)	REG_FIELD_PREP8(LT_PHY_TX_SWING_LEVEL_MASK, val)
+#define  LT_PHY_TX_SWING_MASK		REG_BIT8(3)
+#define  LT_PHY_TX_SWING(val)		REG_FIELD_PREP8(LT_PHY_TX_SWING_MASK, val)
+
+#define LT_PHY_TXY_CTL2(idx)		(0x402 + (0x200 * (idx)))
+#define LT_PHY_TXY_CTL3(idx)		(0x403 + (0x200 * (idx)))
+#define LT_PHY_TXY_CTL4(idx)		(0x404 + (0x200 * (idx)))
+#define  LT_PHY_TX_CURSOR_MASK		REG_GENMASK8(5, 0)
+#define  LT_PHY_TX_CURSOR(val)		REG_FIELD_PREP8(LT_PHY_TX_CURSOR_MASK, val)
+
+#define LT_PHY_TXY_CTL10(idx)		(0x40A + (0x200 * (idx)))
+#define LT_PHY_TXY_CTL10_MAC(idx)	_MMIO(LT_PHY_TXY_CTL10(idx))
+#define  LT_PHY_TX_LANE_ENABLE		REG_BIT8(0)
+
+/* LT Phy Vendor Register */
+#define LT_PHY_VDR_0_CONFIG	0xC02
+#define  LT_PHY_VDR_DP_PLL_ENABLE	REG_BIT(7)
+#define LT_PHY_VDR_1_CONFIG	0xC03
+#define  LT_PHY_VDR_RATE_ENCODING_MASK	REG_GENMASK8(6, 3)
+#define  LT_PHY_VDR_MODE_ENCODING_MASK	REG_GENMASK8(2, 0)
+#define LT_PHY_VDR_2_CONFIG	0xCC3
+
+#define LT_PHY_VDR_X_ADDR_MSB(idx)	(0xC04 + 0x6 * (idx))
+#define LT_PHY_VDR_X_ADDR_LSB(idx)	(0xC05 + 0x6 * (idx))
+
+#define LT_PHY_VDR_X_DATAY(idx, y)	((0xC06 + (3 - (y))) + 0x6 * (idx))
+
+#define LT_PHY_RATE_UPDATE		0xCC4
+#define    LT_PHY_RATE_CONTROL_VDR_UPDATE	REG_BIT8(0)
+
+#define _XE3PLPD_PORT_BUF_CTL5(idx)	_MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_A, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_B, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_USBC1, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_USBC2) \
+								+ 0x34)
+#define XE3PLPD_PORT_BUF_CTL5(port)	_XE3PLPD_PORT_BUF_CTL5(__xe2lpd_port_idx(port))
+#define  XE3PLPD_MACCLK_RESET_0		REG_BIT(11)
+#define  XE3PLPD_MACCLK_RATE_MASK	REG_GENMASK(4, 0)
+#define  XE3PLPD_MACCLK_RATE_DEF	REG_FIELD_PREP(XE3PLPD_MACCLK_RATE_MASK, 0x1F)
+
+#define _XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(idx, lane)	_MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_A, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_B, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC1, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC2) \
+										 + 0x60 + (lane) * 0x4)
+#define XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(port, lane)	 _XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(__xe2lpd_port_idx(port), \
+											    lane)
+#define   XE3LPD_PORT_P2M_ADDR_MASK			REG_GENMASK(11, 0)
+#endif /* __INTEL_LT_PHY_REGS_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 8415f3d703ed..0dcb0597879a 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -19,6 +19,7 @@
 #include "intel_color.h"
 #include "intel_crtc.h"
 #include "intel_crtc_state_dump.h"
+#include "intel_dbuf_bw.h"
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display.h"
@@ -176,6 +177,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	intel_cdclk_crtc_disable_noatomic(crtc);
 	skl_wm_crtc_disable_noatomic(crtc);
 	intel_bw_crtc_disable_noatomic(crtc);
+	intel_dbuf_bw_crtc_disable_noatomic(crtc);
 
 	intel_pmdemand_update_port_clock(display, pmdemand_state, pipe, 0);
 }
@@ -851,18 +853,23 @@ static void intel_modeset_readout_hw_state(struct intel_display *display)
 			 */
 			if (plane_state->uapi.visible && plane->min_cdclk) {
 				if (crtc_state->double_wide || DISPLAY_VER(display) >= 10)
-					crtc_state->min_cdclk[plane->id] =
+					crtc_state->plane_min_cdclk[plane->id] =
 						DIV_ROUND_UP(crtc_state->pixel_rate, 2);
 				else
-					crtc_state->min_cdclk[plane->id] =
+					crtc_state->plane_min_cdclk[plane->id] =
 						crtc_state->pixel_rate;
 			}
 			drm_dbg_kms(display->drm,
 				    "[PLANE:%d:%s] min_cdclk %d kHz\n",
 				    plane->base.base.id, plane->base.name,
-				    crtc_state->min_cdclk[plane->id]);
+				    crtc_state->plane_min_cdclk[plane->id]);
 		}
 
+		crtc_state->min_cdclk = intel_crtc_min_cdclk(crtc_state);
+
+		drm_dbg_kms(display->drm, "[CRTC:%d:%s] min_cdclk %d kHz\n",
+			    crtc->base.base.id, crtc->base.name, crtc_state->min_cdclk);
+
 		intel_pmdemand_update_port_clock(display, pmdemand_state, pipe,
 						 crtc_state->port_clock);
 	}
@@ -872,6 +879,7 @@ static void intel_modeset_readout_hw_state(struct intel_display *display)
 		intel_wm_get_hw_state(display);
 
 	intel_bw_update_hw_state(display);
+	intel_dbuf_bw_update_hw_state(display);
 	intel_cdclk_update_hw_state(display);
 
 	intel_pmdemand_init_pmdemand_params(display, pmdemand_state);
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_verify.c b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
index f2f6b9d9afa1..b361a77cd235 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_verify.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
@@ -16,6 +16,7 @@
 #include "intel_display_core.h"
 #include "intel_display_types.h"
 #include "intel_fdi.h"
+#include "intel_lt_phy.h"
 #include "intel_modeset_verify.h"
 #include "intel_snps_phy.h"
 #include "skl_watermark.h"
@@ -246,6 +247,7 @@ void intel_modeset_verify_crtc(struct intel_atomic_state *state,
 	intel_dpll_state_verify(state, crtc);
 	intel_mpllb_state_verify(state, crtc);
 	intel_cx0pll_state_verify(state, crtc);
+	intel_lt_phy_pll_state_verify(state, crtc);
 }
 
 void intel_modeset_verify_disabled(struct intel_atomic_state *state)
diff --git a/drivers/gpu/drm/i915/display/intel_pch.c b/drivers/gpu/drm/i915/display/intel_pch.c
index 469e8a3cfb49..65359a36df48 100644
--- a/drivers/gpu/drm/i915/display/intel_pch.c
+++ b/drivers/gpu/drm/i915/display/intel_pch.c
@@ -5,8 +5,8 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_display_core.h"
+#include "intel_display_utils.h"
 #include "intel_pch.h"
 
 #define INTEL_PCH_DEVICE_ID_MASK		0xff80
@@ -328,7 +328,7 @@ void intel_pch_detect(struct intel_display *display)
 			    "Display disabled, reverting to NOP PCH\n");
 		display->pch_type = PCH_NOP;
 	} else if (!pch) {
-		if (i915_run_as_guest() && HAS_DISPLAY(display)) {
+		if (intel_display_run_as_guest(display) && HAS_DISPLAY(display)) {
 			intel_virt_detect_pch(display, &id, &pch_type);
 			display->pch_type = pch_type;
 		} else {
diff --git a/drivers/gpu/drm/i915/display/intel_pch_refclk.c b/drivers/gpu/drm/i915/display/intel_pch_refclk.c
index 9ae53679a041..cca880c7eed4 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_refclk.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_refclk.c
@@ -6,10 +6,10 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_panel.h"
 #include "intel_pch_refclk.h"
 #include "intel_sbi.h"
diff --git a/drivers/gpu/drm/i915/display/intel_pfit.c b/drivers/gpu/drm/i915/display/intel_pfit.c
index 68539e7c2a24..6dda496190e0 100644
--- a/drivers/gpu/drm/i915/display/intel_pfit.c
+++ b/drivers/gpu/drm/i915/display/intel_pfit.c
@@ -5,12 +5,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_core.h"
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_lvds_regs.h"
 #include "intel_pfit.h"
 #include "intel_pfit_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_plane.c b/drivers/gpu/drm/i915/display/intel_plane.c
index 2329f09d413d..78329deb395a 100644
--- a/drivers/gpu/drm/i915/display/intel_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_plane.c
@@ -45,7 +45,6 @@
 #include <drm/drm_panic.h>
 
 #include "gem/i915_gem_object.h"
-#include "i915_scheduler_types.h"
 #include "i9xx_plane_regs.h"
 #include "intel_cdclk.h"
 #include "intel_cursor.h"
@@ -292,64 +291,21 @@ intel_plane_relative_data_rate(const struct intel_crtc_state *crtc_state,
 				   rel_data_rate);
 }
 
-int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
-			       struct intel_plane *plane,
-			       bool *need_cdclk_calc)
+static void intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
+				       struct intel_plane *plane)
 {
-	struct intel_display *display = to_intel_display(plane);
 	const struct intel_plane_state *plane_state =
 		intel_atomic_get_new_plane_state(state, plane);
 	struct intel_crtc *crtc = to_intel_crtc(plane_state->hw.crtc);
-	const struct intel_cdclk_state *cdclk_state;
-	const struct intel_crtc_state *old_crtc_state;
 	struct intel_crtc_state *new_crtc_state;
 
 	if (!plane_state->uapi.visible || !plane->min_cdclk)
-		return 0;
+		return;
 
-	old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc);
 	new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
 
-	new_crtc_state->min_cdclk[plane->id] =
+	new_crtc_state->plane_min_cdclk[plane->id] =
 		plane->min_cdclk(new_crtc_state, plane_state);
-
-	/*
-	 * No need to check against the cdclk state if
-	 * the min cdclk for the plane doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to plane
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_crtc_state->min_cdclk[plane->id] <=
-	    old_crtc_state->min_cdclk[plane->id])
-		return 0;
-
-	cdclk_state = intel_atomic_get_cdclk_state(state);
-	if (IS_ERR(cdclk_state))
-		return PTR_ERR(cdclk_state);
-
-	/*
-	 * No need to recalculate the cdclk state if
-	 * the min cdclk for the pipe doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to plane
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_crtc_state->min_cdclk[plane->id] <=
-	    intel_cdclk_min_cdclk(cdclk_state, crtc->pipe))
-		return 0;
-
-	drm_dbg_kms(display->drm,
-		    "[PLANE:%d:%s] min cdclk (%d kHz) > [CRTC:%d:%s] min cdclk (%d kHz)\n",
-		    plane->base.base.id, plane->base.name,
-		    new_crtc_state->min_cdclk[plane->id],
-		    crtc->base.base.id, crtc->base.name,
-		    intel_cdclk_min_cdclk(cdclk_state, crtc->pipe));
-	*need_cdclk_calc = true;
-
-	return 0;
 }
 
 static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state)
@@ -435,7 +391,7 @@ void intel_plane_set_invisible(struct intel_crtc_state *crtc_state,
 	crtc_state->data_rate_y[plane->id] = 0;
 	crtc_state->rel_data_rate[plane->id] = 0;
 	crtc_state->rel_data_rate_y[plane->id] = 0;
-	crtc_state->min_cdclk[plane->id] = 0;
+	crtc_state->plane_min_cdclk[plane->id] = 0;
 
 	plane_state->uapi.visible = false;
 }
@@ -1172,7 +1128,6 @@ static int
 intel_prepare_plane_fb(struct drm_plane *_plane,
 		       struct drm_plane_state *_new_plane_state)
 {
-	struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY };
 	struct intel_plane *plane = to_intel_plane(_plane);
 	struct intel_display *display = to_intel_display(plane);
 	struct intel_plane_state *new_plane_state =
@@ -1221,8 +1176,7 @@ intel_prepare_plane_fb(struct drm_plane *_plane,
 		goto unpin_fb;
 
 	if (new_plane_state->uapi.fence) {
-		i915_gem_fence_wait_priority(new_plane_state->uapi.fence,
-					     &attr);
+		i915_gem_fence_wait_priority_display(new_plane_state->uapi.fence);
 
 		intel_display_rps_boost_after_vblank(new_plane_state->hw.crtc,
 						     new_plane_state->uapi.fence);
@@ -1746,5 +1700,8 @@ int intel_plane_atomic_check(struct intel_atomic_state *state)
 			return ret;
 	}
 
+	for_each_new_intel_plane_in_state(state, plane, plane_state, i)
+		intel_plane_calc_min_cdclk(state, plane);
+
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/display/intel_plane.h b/drivers/gpu/drm/i915/display/intel_plane.h
index 8af41ccc0a69..4e99df9de3e8 100644
--- a/drivers/gpu/drm/i915/display/intel_plane.h
+++ b/drivers/gpu/drm/i915/display/intel_plane.h
@@ -69,9 +69,6 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
 					struct intel_crtc_state *crtc_state,
 					const struct intel_plane_state *old_plane_state,
 					struct intel_plane_state *intel_state);
-int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
-			       struct intel_plane *plane,
-			       bool *need_cdclk_calc);
 int intel_plane_check_clipping(struct intel_plane_state *plane_state,
 			       struct intel_crtc_state *crtc_state,
 			       int min_scale, int max_scale,
diff --git a/drivers/gpu/drm/i915/display/intel_pmdemand.c b/drivers/gpu/drm/i915/display/intel_pmdemand.c
index d806c15db7ce..f52abd4e2eb0 100644
--- a/drivers/gpu/drm/i915/display/intel_pmdemand.c
+++ b/drivers/gpu/drm/i915/display/intel_pmdemand.c
@@ -7,13 +7,14 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_bw.h"
 #include "intel_cdclk.h"
 #include "intel_de.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_regs.h"
 #include "intel_display_trace.h"
+#include "intel_display_utils.h"
 #include "intel_pmdemand.h"
 #include "intel_step.h"
 #include "skl_watermark.h"
diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
index 327e0de86f1e..25692a547764 100644
--- a/drivers/gpu/drm/i915/display/intel_pps.c
+++ b/drivers/gpu/drm/i915/display/intel_pps.c
@@ -10,11 +10,12 @@
 
 #include "g4x_dp.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_de.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dpio_phy.h"
 #include "intel_dpll.h"
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 10eb93a34cf2..0ca2b06d18b5 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -39,6 +39,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_dp.h"
 #include "intel_dp_aux.h"
@@ -50,6 +51,7 @@
 #include "intel_snps_phy.h"
 #include "intel_step.h"
 #include "intel_vblank.h"
+#include "intel_vdsc.h"
 #include "intel_vrr.h"
 #include "skl_universal_plane.h"
 
@@ -580,6 +582,44 @@ exit:
 	intel_dp->psr.su_y_granularity = y;
 }
 
+static enum intel_panel_replay_dsc_support
+compute_pr_dsc_support(struct intel_dp *intel_dp)
+{
+	u8 pr_dsc_mode;
+	u8 val;
+
+	val = intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_CAPABILITY)];
+	pr_dsc_mode = REG_FIELD_GET8(DP_PANEL_REPLAY_DSC_DECODE_CAPABILITY_IN_PR_MASK, val);
+
+	switch (pr_dsc_mode) {
+	case DP_DSC_DECODE_CAPABILITY_IN_PR_FULL_FRAME_ONLY:
+		return INTEL_DP_PANEL_REPLAY_DSC_FULL_FRAME_ONLY;
+	case DP_DSC_DECODE_CAPABILITY_IN_PR_SUPPORTED:
+		return INTEL_DP_PANEL_REPLAY_DSC_SELECTIVE_UPDATE;
+	default:
+		MISSING_CASE(pr_dsc_mode);
+		fallthrough;
+	case DP_DSC_DECODE_CAPABILITY_IN_PR_NOT_SUPPORTED:
+	case DP_DSC_DECODE_CAPABILITY_IN_PR_RESERVED:
+		return INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED;
+	}
+}
+
+static const char *panel_replay_dsc_support_str(enum intel_panel_replay_dsc_support dsc_support)
+{
+	switch (dsc_support) {
+	case INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED:
+		return "not supported";
+	case INTEL_DP_PANEL_REPLAY_DSC_FULL_FRAME_ONLY:
+		return "full frame only";
+	case INTEL_DP_PANEL_REPLAY_DSC_SELECTIVE_UPDATE:
+		return "selective update";
+	default:
+		MISSING_CASE(dsc_support);
+		return "n/a";
+	};
+}
+
 static void _panel_replay_init_dpcd(struct intel_dp *intel_dp)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
@@ -615,10 +655,13 @@ static void _panel_replay_init_dpcd(struct intel_dp *intel_dp)
 	    DP_PANEL_REPLAY_SU_SUPPORT)
 		intel_dp->psr.sink_panel_replay_su_support = true;
 
+	intel_dp->psr.sink_panel_replay_dsc_support = compute_pr_dsc_support(intel_dp);
+
 	drm_dbg_kms(display->drm,
-		    "Panel replay %sis supported by panel\n",
+		    "Panel replay %sis supported by panel (in DSC mode: %s)\n",
 		    intel_dp->psr.sink_panel_replay_su_support ?
-		    "selective_update " : "");
+		    "selective_update " : "",
+		    panel_replay_dsc_support_str(intel_dp->psr.sink_panel_replay_dsc_support));
 }
 
 static void _psr_init_dpcd(struct intel_dp *intel_dp)
@@ -956,15 +999,16 @@ static u32 intel_psr2_get_tp_time(struct intel_dp *intel_dp)
 	return val;
 }
 
-static int psr2_block_count_lines(struct intel_dp *intel_dp)
+static int
+psr2_block_count_lines(u8 io_wake_lines, u8 fast_wake_lines)
 {
-	return intel_dp->alpm_parameters.io_wake_lines < 9 &&
-		intel_dp->alpm_parameters.fast_wake_lines < 9 ? 8 : 12;
+	return io_wake_lines < 9 && fast_wake_lines < 9 ? 8 : 12;
 }
 
 static int psr2_block_count(struct intel_dp *intel_dp)
 {
-	return psr2_block_count_lines(intel_dp) / 4;
+	return psr2_block_count_lines(intel_dp->psr.io_wake_lines,
+				      intel_dp->psr.fast_wake_lines) / 4;
 }
 
 static u8 frames_before_su_entry(struct intel_dp *intel_dp)
@@ -1059,20 +1103,20 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
 		 */
 		int tmp;
 
-		tmp = map[intel_dp->alpm_parameters.io_wake_lines -
+		tmp = map[intel_dp->psr.io_wake_lines -
 			  TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES];
 		val |= TGL_EDP_PSR2_IO_BUFFER_WAKE(tmp + TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES);
 
-		tmp = map[intel_dp->alpm_parameters.fast_wake_lines - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES];
+		tmp = map[intel_dp->psr.fast_wake_lines - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES];
 		val |= TGL_EDP_PSR2_FAST_WAKE(tmp + TGL_EDP_PSR2_FAST_WAKE_MIN_LINES);
 	} else if (DISPLAY_VER(display) >= 20) {
-		val |= LNL_EDP_PSR2_IO_BUFFER_WAKE(intel_dp->alpm_parameters.io_wake_lines);
+		val |= LNL_EDP_PSR2_IO_BUFFER_WAKE(intel_dp->psr.io_wake_lines);
 	} else if (DISPLAY_VER(display) >= 12) {
-		val |= TGL_EDP_PSR2_IO_BUFFER_WAKE(intel_dp->alpm_parameters.io_wake_lines);
-		val |= TGL_EDP_PSR2_FAST_WAKE(intel_dp->alpm_parameters.fast_wake_lines);
+		val |= TGL_EDP_PSR2_IO_BUFFER_WAKE(intel_dp->psr.io_wake_lines);
+		val |= TGL_EDP_PSR2_FAST_WAKE(intel_dp->psr.fast_wake_lines);
 	} else if (DISPLAY_VER(display) >= 9) {
-		val |= EDP_PSR2_IO_BUFFER_WAKE(intel_dp->alpm_parameters.io_wake_lines);
-		val |= EDP_PSR2_FAST_WAKE(intel_dp->alpm_parameters.fast_wake_lines);
+		val |= EDP_PSR2_IO_BUFFER_WAKE(intel_dp->psr.io_wake_lines);
+		val |= EDP_PSR2_FAST_WAKE(intel_dp->psr.fast_wake_lines);
 	}
 
 	if (intel_dp->psr.req_psr2_sdp_prior_scanline)
@@ -1360,22 +1404,54 @@ static int intel_psr_entry_setup_frames(struct intel_dp *intel_dp,
 	return entry_setup_frames;
 }
 
-static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp,
-				       const struct intel_crtc_state *crtc_state,
-				       bool aux_less)
+static
+int _intel_psr_min_set_context_latency(const struct intel_crtc_state *crtc_state,
+				       bool needs_panel_replay,
+				       bool needs_sel_update)
 {
-	struct intel_display *display = to_intel_display(intel_dp);
-	int vblank = crtc_state->hw.adjusted_mode.crtc_vblank_end -
-		crtc_state->hw.adjusted_mode.crtc_vblank_start;
-	int wake_lines;
+	struct intel_display *display = to_intel_display(crtc_state);
 
-	if (aux_less)
-		wake_lines = intel_dp->alpm_parameters.aux_less_wake_lines;
+	if (!crtc_state->has_psr)
+		return 0;
+
+	/* Wa_14015401596 */
+	if (intel_vrr_possible(crtc_state) && IS_DISPLAY_VER(display, 13, 14))
+		return 1;
+
+	/* Rest is for SRD_STATUS needed on LunarLake and onwards */
+	if (DISPLAY_VER(display) < 20)
+		return 0;
+
+	/*
+	 * Comment on SRD_STATUS register in Bspec for LunarLake and onwards:
+	 *
+	 * To deterministically capture the transition of the state machine
+	 * going from SRDOFFACK to IDLE, the delayed V. Blank should be at least
+	 * one line after the non-delayed V. Blank.
+	 *
+	 * Legacy TG: TRANS_SET_CONTEXT_LATENCY > 0
+	 * VRR TG: TRANS_VRR_CTL[ VRR Guardband ] < (TRANS_VRR_VMAX[ VRR Vmax ]
+	 * - TRANS_VTOTAL[ Vertical Active ])
+	 *
+	 * SRD_STATUS is used only by PSR1 on PantherLake.
+	 * SRD_STATUS is used by PSR1 and Panel Replay DP on LunarLake.
+	 */
+
+	if (DISPLAY_VER(display) >= 30 && (needs_panel_replay ||
+					   needs_sel_update))
+		return 0;
+	else if (DISPLAY_VER(display) < 30 && (needs_sel_update ||
+					       intel_crtc_has_type(crtc_state,
+								   INTEL_OUTPUT_EDP)))
+		return 0;
 	else
-		wake_lines = DISPLAY_VER(display) < 20 ?
-			psr2_block_count_lines(intel_dp) :
-			intel_dp->alpm_parameters.io_wake_lines;
+		return 1;
+}
 
+static bool _wake_lines_fit_into_vblank(const struct intel_crtc_state *crtc_state,
+					int vblank,
+					int wake_lines)
+{
 	if (crtc_state->req_psr2_sdp_prior_scanline)
 		vblank -= 1;
 
@@ -1386,9 +1462,46 @@ static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp,
 	return true;
 }
 
+static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp,
+				       const struct intel_crtc_state *crtc_state,
+				       bool aux_less,
+				       bool needs_panel_replay,
+				       bool needs_sel_update)
+{
+	struct intel_display *display = to_intel_display(intel_dp);
+	int vblank = crtc_state->hw.adjusted_mode.crtc_vblank_end -
+		crtc_state->hw.adjusted_mode.crtc_vblank_start;
+	int wake_lines;
+	int scl = _intel_psr_min_set_context_latency(crtc_state,
+						     needs_panel_replay,
+						     needs_sel_update);
+	vblank -= scl;
+
+	if (aux_less)
+		wake_lines = crtc_state->alpm_state.aux_less_wake_lines;
+	else
+		wake_lines = DISPLAY_VER(display) < 20 ?
+			psr2_block_count_lines(crtc_state->alpm_state.io_wake_lines,
+					       crtc_state->alpm_state.fast_wake_lines) :
+			crtc_state->alpm_state.io_wake_lines;
+
+	/*
+	 * Guardband has not been computed yet, so we conservatively check if the
+	 * full vblank duration is sufficient to accommodate wake line requirements
+	 * for PSR features like Panel Replay and Selective Update.
+	 *
+	 * Once the actual guardband is available, a more accurate validation is
+	 * performed in intel_psr_compute_config_late(), and PSR features are
+	 * disabled if wake lines exceed the available guardband.
+	 */
+	return _wake_lines_fit_into_vblank(crtc_state, vblank, wake_lines);
+}
+
 static bool alpm_config_valid(struct intel_dp *intel_dp,
-			      const struct intel_crtc_state *crtc_state,
-			      bool aux_less)
+			      struct intel_crtc_state *crtc_state,
+			      bool aux_less,
+			      bool needs_panel_replay,
+			      bool needs_sel_update)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 
@@ -1398,7 +1511,8 @@ static bool alpm_config_valid(struct intel_dp *intel_dp,
 		return false;
 	}
 
-	if (!wake_lines_fit_into_vblank(intel_dp, crtc_state, aux_less)) {
+	if (!wake_lines_fit_into_vblank(intel_dp, crtc_state, aux_less,
+					needs_panel_replay, needs_sel_update)) {
 		drm_dbg_kms(display->drm,
 			    "PSR2/Panel Replay not enabled, too short vblank time\n");
 		return false;
@@ -1490,7 +1604,7 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 		return false;
 	}
 
-	if (!alpm_config_valid(intel_dp, crtc_state, false))
+	if (!alpm_config_valid(intel_dp, crtc_state, false, false, true))
 		return false;
 
 	if (!crtc_state->enable_psr2_sel_fetch &&
@@ -1535,9 +1649,21 @@ static bool intel_sel_update_config_valid(struct intel_dp *intel_dp,
 		goto unsupported;
 	}
 
-	if (crtc_state->has_panel_replay && (DISPLAY_VER(display) < 14 ||
-					     !intel_dp->psr.sink_panel_replay_su_support))
-		goto unsupported;
+	if (crtc_state->has_panel_replay) {
+		if (DISPLAY_VER(display) < 14)
+			goto unsupported;
+
+		if (!intel_dp->psr.sink_panel_replay_su_support)
+			goto unsupported;
+
+		if (intel_dsc_enabled_on_link(crtc_state) &&
+		    intel_dp->psr.sink_panel_replay_dsc_support !=
+		    INTEL_DP_PANEL_REPLAY_DSC_SELECTIVE_UPDATE) {
+			drm_dbg_kms(display->drm,
+				    "Selective update with Panel Replay not enabled because it's not supported with DSC\n");
+			goto unsupported;
+		}
+	}
 
 	if (crtc_state->crc_enabled) {
 		drm_dbg_kms(display->drm,
@@ -1582,6 +1708,7 @@ static bool _psr_compute_config(struct intel_dp *intel_dp,
 	if (entry_setup_frames >= 0) {
 		intel_dp->psr.entry_setup_frames = entry_setup_frames;
 	} else {
+		crtc_state->no_psr_reason = "PSR setup timing not met";
 		drm_dbg_kms(display->drm,
 			    "PSR condition failed: PSR setup timing not met\n");
 		return false;
@@ -1592,7 +1719,7 @@ static bool _psr_compute_config(struct intel_dp *intel_dp,
 
 static bool
 _panel_replay_compute_config(struct intel_dp *intel_dp,
-			     const struct intel_crtc_state *crtc_state,
+			     struct intel_crtc_state *crtc_state,
 			     const struct drm_connector_state *conn_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
@@ -1614,6 +1741,14 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
 		return false;
 	}
 
+	if (intel_dsc_enabled_on_link(crtc_state) &&
+	    intel_dp->psr.sink_panel_replay_dsc_support ==
+	    INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED) {
+		drm_dbg_kms(display->drm,
+			    "Panel Replay not enabled because it's not supported with DSC\n");
+		return false;
+	}
+
 	if (!intel_dp_is_edp(intel_dp))
 		return true;
 
@@ -1641,7 +1776,7 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
 		return false;
 	}
 
-	if (!alpm_config_valid(intel_dp, crtc_state, true))
+	if (!alpm_config_valid(intel_dp, crtc_state, true, true, false))
 		return false;
 
 	return true;
@@ -1656,15 +1791,40 @@ static bool intel_psr_needs_wa_18037818876(struct intel_dp *intel_dp,
 		!crtc_state->has_sel_update);
 }
 
+static
+void intel_psr_set_non_psr_pipes(struct intel_dp *intel_dp,
+				 struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(intel_dp);
+	struct intel_atomic_state *state = to_intel_atomic_state(crtc_state->uapi.state);
+	struct intel_crtc *crtc;
+	u8 active_pipes = 0;
+
+	/* Wa_16025596647 */
+	if (DISPLAY_VER(display) != 20 &&
+	    !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
+		return;
+
+	/* Not needed by Panel Replay  */
+	if (crtc_state->has_panel_replay)
+		return;
+
+	/* We ignore possible secondary PSR/Panel Replay capable eDP */
+	for_each_intel_crtc(display->drm, crtc)
+		active_pipes |= crtc->active ? BIT(crtc->pipe) : 0;
+
+	active_pipes = intel_calc_active_pipes(state, active_pipes);
+
+	crtc_state->active_non_psr_pipes = active_pipes &
+		~BIT(to_intel_crtc(crtc_state->uapi.crtc)->pipe);
+}
+
 void intel_psr_compute_config(struct intel_dp *intel_dp,
 			      struct intel_crtc_state *crtc_state,
 			      struct drm_connector_state *conn_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
-	struct intel_atomic_state *state = to_intel_atomic_state(crtc_state->uapi.state);
-	struct intel_crtc *crtc;
-	u8 active_pipes = 0;
 
 	if (!psr_global_enabled(intel_dp)) {
 		drm_dbg_kms(display->drm, "PSR disabled by flag\n");
@@ -1694,6 +1854,8 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		return;
 	}
 
+	/* Only used for state verification. */
+	crtc_state->panel_replay_dsc_support = intel_dp->psr.sink_panel_replay_dsc_support;
 	crtc_state->has_panel_replay = _panel_replay_compute_config(intel_dp,
 								    crtc_state,
 								    conn_state);
@@ -1705,31 +1867,6 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		return;
 
 	crtc_state->has_sel_update = intel_sel_update_config_valid(intel_dp, crtc_state);
-
-	/* Wa_18037818876 */
-	if (intel_psr_needs_wa_18037818876(intel_dp, crtc_state)) {
-		crtc_state->has_psr = false;
-		drm_dbg_kms(display->drm,
-			    "PSR disabled to workaround PSR FSM hang issue\n");
-	}
-
-	/* Rest is for Wa_16025596647 */
-	if (DISPLAY_VER(display) != 20 &&
-	    !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
-		return;
-
-	/* Not needed by Panel Replay  */
-	if (crtc_state->has_panel_replay)
-		return;
-
-	/* We ignore possible secondary PSR/Panel Replay capable eDP */
-	for_each_intel_crtc(display->drm, crtc)
-		active_pipes |= crtc->active ? BIT(crtc->pipe) : 0;
-
-	active_pipes = intel_calc_active_pipes(state, active_pipes);
-
-	crtc_state->active_non_psr_pipes = active_pipes &
-		~BIT(to_intel_crtc(crtc_state->uapi.crtc)->pipe);
 }
 
 void intel_psr_get_config(struct intel_encoder *encoder,
@@ -1813,6 +1950,7 @@ static void intel_psr_activate(struct intel_dp *intel_dp)
 		hsw_activate_psr1(intel_dp);
 
 	intel_dp->psr.active = true;
+	intel_dp->psr.no_psr_reason = NULL;
 }
 
 /*
@@ -2022,6 +2160,8 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
 		crtc_state->req_psr2_sdp_prior_scanline;
 	intel_dp->psr.active_non_psr_pipes = crtc_state->active_non_psr_pipes;
 	intel_dp->psr.pkg_c_latency_used = crtc_state->pkg_c_latency_used;
+	intel_dp->psr.io_wake_lines = crtc_state->alpm_state.io_wake_lines;
+	intel_dp->psr.fast_wake_lines = crtc_state->alpm_state.fast_wake_lines;
 
 	if (!psr_interrupt_error_check(intel_dp))
 		return;
@@ -2360,50 +2500,17 @@ void intel_psr_trigger_frame_change_event(struct intel_dsb *dsb,
 }
 
 /**
- * intel_psr_min_vblank_delay - Minimum vblank delay needed by PSR
+ * intel_psr_min_set_context_latency - Minimum 'set context latency' lines needed by PSR
  * @crtc_state: the crtc state
  *
- * Return minimum vblank delay needed by PSR.
+ * Return minimum SCL lines/delay needed by PSR.
  */
-int intel_psr_min_vblank_delay(const struct intel_crtc_state *crtc_state)
+int intel_psr_min_set_context_latency(const struct intel_crtc_state *crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
 
-	if (!crtc_state->has_psr)
-		return 0;
-
-	/* Wa_14015401596 */
-	if (intel_vrr_possible(crtc_state) && IS_DISPLAY_VER(display, 13, 14))
-		return 1;
-
-	/* Rest is for SRD_STATUS needed on LunarLake and onwards */
-	if (DISPLAY_VER(display) < 20)
-		return 0;
-
-	/*
-	 * Comment on SRD_STATUS register in Bspec for LunarLake and onwards:
-	 *
-	 * To deterministically capture the transition of the state machine
-	 * going from SRDOFFACK to IDLE, the delayed V. Blank should be at least
-	 * one line after the non-delayed V. Blank.
-	 *
-	 * Legacy TG: TRANS_SET_CONTEXT_LATENCY > 0
-	 * VRR TG: TRANS_VRR_CTL[ VRR Guardband ] < (TRANS_VRR_VMAX[ VRR Vmax ]
-	 * - TRANS_VTOTAL[ Vertical Active ])
-	 *
-	 * SRD_STATUS is used only by PSR1 on PantherLake.
-	 * SRD_STATUS is used by PSR1 and Panel Replay DP on LunarLake.
-	 */
-
-	if (DISPLAY_VER(display) >= 30 && (crtc_state->has_panel_replay ||
-					   crtc_state->has_sel_update))
-		return 0;
-	else if (DISPLAY_VER(display) < 30 && (crtc_state->has_sel_update ||
-					       intel_crtc_has_type(crtc_state,
-								   INTEL_OUTPUT_EDP)))
-		return 0;
-	else
-		return 1;
+	return _intel_psr_min_set_context_latency(crtc_state,
+						  crtc_state->has_panel_replay,
+						  crtc_state->has_sel_update);
 }
 
 static u32 man_trk_ctl_enable_bit_get(struct intel_display *display)
@@ -2925,6 +3032,9 @@ void intel_psr_pre_plane_update(struct intel_atomic_state *state,
 
 		mutex_lock(&psr->lock);
 
+		if (!new_crtc_state->has_psr)
+			psr->no_psr_reason = new_crtc_state->no_psr_reason;
+
 		if (psr->enabled) {
 			/*
 			 * Reasons to disable:
@@ -2951,6 +3061,20 @@ void intel_psr_pre_plane_update(struct intel_atomic_state *state,
 	}
 }
 
+static void
+verify_panel_replay_dsc_state(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (!crtc_state->has_panel_replay)
+		return;
+
+	drm_WARN_ON(display->drm,
+		    intel_dsc_enabled_on_link(crtc_state) &&
+		    crtc_state->panel_replay_dsc_support ==
+		    INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED);
+}
+
 void intel_psr_post_plane_update(struct intel_atomic_state *state,
 				 struct intel_crtc *crtc)
 {
@@ -2962,6 +3086,8 @@ void intel_psr_post_plane_update(struct intel_atomic_state *state,
 	if (!crtc_state->has_psr)
 		return;
 
+	verify_panel_replay_dsc_state(crtc_state);
+
 	for_each_intel_encoder_mask_with_psr(state->base.dev, encoder,
 					     crtc_state->uapi.encoder_mask) {
 		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
@@ -2973,12 +3099,19 @@ void intel_psr_post_plane_update(struct intel_atomic_state *state,
 		drm_WARN_ON(display->drm,
 			    psr->enabled && !crtc_state->active_planes);
 
-		keep_disabled |= psr->sink_not_reliable;
-		keep_disabled |= !crtc_state->active_planes;
+		if (psr->sink_not_reliable)
+			keep_disabled = true;
+
+		if (!crtc_state->active_planes) {
+			psr->no_psr_reason = "All planes inactive";
+			keep_disabled = true;
+		}
 
 		/* Display WA #1136: skl, bxt */
-		keep_disabled |= DISPLAY_VER(display) < 11 &&
-			crtc_state->wm_level_disabled;
+		if (DISPLAY_VER(display) < 11 && crtc_state->wm_level_disabled) {
+			psr->no_psr_reason = "Workaround #1136 for skl, bxt";
+			keep_disabled = true;
+		}
 
 		if (!psr->enabled && !keep_disabled)
 			intel_psr_enable_locked(intel_dp, crtc_state);
@@ -3991,6 +4124,8 @@ static void intel_psr_sink_capability(struct intel_dp *intel_dp,
 	seq_printf(m, ", Panel Replay = %s", str_yes_no(psr->sink_panel_replay_support));
 	seq_printf(m, ", Panel Replay Selective Update = %s",
 		   str_yes_no(psr->sink_panel_replay_su_support));
+	seq_printf(m, ", Panel Replay DSC support = %s",
+		   panel_replay_dsc_support_str(psr->sink_panel_replay_dsc_support));
 	if (intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
 	    DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT)
 		seq_printf(m, " (Early Transport)");
@@ -4025,6 +4160,8 @@ static void intel_psr_print_mode(struct intel_dp *intel_dp,
 		region_et = "";
 
 	seq_printf(m, "PSR mode: %s%s%s\n", mode, status, region_et);
+	if (psr->no_psr_reason)
+		seq_printf(m, "  %s\n", psr->no_psr_reason);
 }
 
 static int intel_psr_status(struct seq_file *m, struct intel_dp *intel_dp)
@@ -4322,3 +4459,84 @@ bool intel_psr_needs_alpm_aux_less(struct intel_dp *intel_dp,
 {
 	return intel_dp_is_edp(intel_dp) && crtc_state->has_panel_replay;
 }
+
+void intel_psr_compute_config_late(struct intel_dp *intel_dp,
+				   struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(intel_dp);
+	int vblank = intel_crtc_vblank_length(crtc_state);
+	int wake_lines;
+
+	if (intel_psr_needs_alpm_aux_less(intel_dp, crtc_state))
+		wake_lines = crtc_state->alpm_state.aux_less_wake_lines;
+	else if (intel_psr_needs_alpm(intel_dp, crtc_state))
+		wake_lines = DISPLAY_VER(display) < 20 ?
+			     psr2_block_count_lines(crtc_state->alpm_state.io_wake_lines,
+						    crtc_state->alpm_state.fast_wake_lines) :
+			     crtc_state->alpm_state.io_wake_lines;
+	else
+		wake_lines = 0;
+
+	/*
+	 * Disable the PSR features if wake lines exceed the available vblank.
+	 * Though SCL is computed based on these PSR features, it is not reset
+	 * even if the PSR features are disabled to avoid changing vblank start
+	 * at this stage.
+	 */
+	if (wake_lines && !_wake_lines_fit_into_vblank(crtc_state, vblank, wake_lines)) {
+		drm_dbg_kms(display->drm,
+			    "Adjusting PSR/PR mode: vblank too short for wake lines = %d\n",
+			    wake_lines);
+
+		if (crtc_state->has_panel_replay) {
+			crtc_state->has_panel_replay = false;
+			/*
+			 * #TODO : Add fall back to PSR/PSR2
+			 * Since panel replay cannot be supported, we can fall back to PSR/PSR2.
+			 * This will require calling compute_config for psr and psr2 with check for
+			 * actual guardband instead of vblank_length.
+			 */
+			crtc_state->has_psr = false;
+		}
+
+		crtc_state->has_sel_update = false;
+		crtc_state->enable_psr2_su_region_et = false;
+		crtc_state->enable_psr2_sel_fetch = false;
+	}
+
+	/* Wa_18037818876 */
+	if (intel_psr_needs_wa_18037818876(intel_dp, crtc_state)) {
+		crtc_state->has_psr = false;
+		drm_dbg_kms(display->drm,
+			    "PSR disabled to workaround PSR FSM hang issue\n");
+	}
+
+	intel_psr_set_non_psr_pipes(intel_dp, crtc_state);
+}
+
+int intel_psr_min_guardband(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int psr_min_guardband;
+	int wake_lines;
+
+	if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return 0;
+
+	if (crtc_state->has_panel_replay)
+		wake_lines = crtc_state->alpm_state.aux_less_wake_lines;
+	else if (crtc_state->has_sel_update)
+		wake_lines = DISPLAY_VER(display) < 20 ?
+			     psr2_block_count_lines(crtc_state->alpm_state.io_wake_lines,
+						    crtc_state->alpm_state.fast_wake_lines) :
+			     crtc_state->alpm_state.io_wake_lines;
+	else
+		return 0;
+
+	psr_min_guardband = wake_lines + crtc_state->set_context_latency;
+
+	if (crtc_state->req_psr2_sdp_prior_scanline)
+		psr_min_guardband++;
+
+	return psr_min_guardband;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_psr.h b/drivers/gpu/drm/i915/display/intel_psr.h
index 077751aa599f..620b35928832 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.h
+++ b/drivers/gpu/drm/i915/display/intel_psr.h
@@ -77,11 +77,14 @@ void intel_psr_unlock(const struct intel_crtc_state *crtc_state);
 void intel_psr_trigger_frame_change_event(struct intel_dsb *dsb,
 					  struct intel_atomic_state *state,
 					  struct intel_crtc *crtc);
-int intel_psr_min_vblank_delay(const struct intel_crtc_state *crtc_state);
+int intel_psr_min_set_context_latency(const struct intel_crtc_state *crtc_state);
 void intel_psr_connector_debugfs_add(struct intel_connector *connector);
 void intel_psr_debugfs_register(struct intel_display *display);
 bool intel_psr_needs_alpm(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state);
 bool intel_psr_needs_alpm_aux_less(struct intel_dp *intel_dp,
 				   const struct intel_crtc_state *crtc_state);
+void intel_psr_compute_config_late(struct intel_dp *intel_dp,
+				   struct intel_crtc_state *crtc_state);
+int intel_psr_min_guardband(struct intel_crtc_state *crtc_state);
 
 #endif /* __INTEL_PSR_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_qp_tables.c b/drivers/gpu/drm/i915/display/intel_qp_tables.c
index 600c815e37e4..c05d4beb91d8 100644
--- a/drivers/gpu/drm/i915/display/intel_qp_tables.c
+++ b/drivers/gpu/drm/i915/display/intel_qp_tables.c
@@ -5,7 +5,7 @@
 
 #include <drm/display/drm_dsc.h>
 
-#include "i915_utils.h"
+#include "intel_display_utils.h"
 #include "intel_qp_tables.h"
 
 /* from BPP 6 to 24 in steps of 0.5 */
diff --git a/drivers/gpu/drm/i915/display/intel_snps_hdmi_pll.c b/drivers/gpu/drm/i915/display/intel_snps_hdmi_pll.c
index 7fe6b4a18213..a201edceee10 100644
--- a/drivers/gpu/drm/i915/display/intel_snps_hdmi_pll.c
+++ b/drivers/gpu/drm/i915/display/intel_snps_hdmi_pll.c
@@ -332,6 +332,8 @@ void intel_snps_hdmi_pll_compute_c10pll(struct intel_c10pll_state *pll_state, u6
 			      c10_curve_1, c10_curve_2, prescaler_divider,
 			      &pll_params);
 
+	pll_state->clock = pixel_clock;
+
 	pll_state->tx = 0x10;
 	pll_state->cmn = 0x1;
 	pll_state->pll[0] = REG_FIELD_PREP(C10_PLL0_DIV5CLK_EN, pll_params.mpll_div5_en) |
diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.c b/drivers/gpu/drm/i915/display/intel_snps_phy.c
index b2dd69a11124..4f028e6a91cd 100644
--- a/drivers/gpu/drm/i915/display/intel_snps_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_snps_phy.c
@@ -7,12 +7,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_ddi.h"
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_snps_hdmi_pll.h"
 #include "intel_snps_phy.h"
 #include "intel_snps_phy_regs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index 75bbaa923204..60f1d9ed181e 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -39,10 +39,10 @@
 #include <drm/drm_print.h>
 #include <drm/drm_rect.h>
 
-#include "i915_utils.h"
 #include "i9xx_plane.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_fb.h"
 #include "intel_frontbuffer.h"
 #include "intel_plane.h"
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index c4a5601c5107..7e17ca018748 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -8,7 +8,6 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_cx0_phy_regs.h"
 #include "intel_ddi.h"
@@ -18,6 +17,7 @@
 #include "intel_display_power_map.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dkl_phy_regs.h"
 #include "intel_dp.h"
 #include "intel_dp_mst.h"
@@ -1703,6 +1703,19 @@ void intel_tc_port_sanitize_mode(struct intel_digital_port *dig_port,
 	mutex_unlock(&tc->lock);
 }
 
+void intel_tc_info(struct drm_printer *p,  struct intel_digital_port *dig_port)
+{
+	struct intel_tc_port *tc = to_tc_port(dig_port);
+
+	intel_tc_port_lock(dig_port);
+	drm_printf(p, "\tTC Port %s: mode: %s, pin assignment: %c, max lanes: %d\n",
+		   tc->port_name,
+		   tc_port_mode_name(tc->mode),
+		   pin_assignment_name(tc->pin_assignment),
+		   tc->max_lane_count);
+	intel_tc_port_unlock(dig_port);
+}
+
 /*
  * The type-C ports are different because even when they are connected, they may
  * not be available/usable by the graphics driver: see the comment on
diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
index fff8b96e4972..6719aea5bd58 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.h
+++ b/drivers/gpu/drm/i915/display/intel_tc.h
@@ -8,6 +8,7 @@
 
 #include <linux/types.h>
 
+struct drm_printer;
 struct intel_crtc_state;
 struct intel_digital_port;
 struct intel_encoder;
@@ -113,4 +114,6 @@ void intel_tc_port_cleanup(struct intel_digital_port *dig_port);
 
 bool intel_tc_cold_requires_aux_pw(struct intel_digital_port *dig_port);
 
+void intel_tc_info(struct drm_printer *p,  struct intel_digital_port *dig_port);
+
 #endif /* __INTEL_TC_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_vblank.c b/drivers/gpu/drm/i915/display/intel_vblank.c
index c15234c1d96e..8aa427a93964 100644
--- a/drivers/gpu/drm/i915/display/intel_vblank.c
+++ b/drivers/gpu/drm/i915/display/intel_vblank.c
@@ -8,12 +8,13 @@
 #include <drm/drm_vblank.h>
 
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_color.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_vblank.h"
 #include "intel_vrr.h"
 
@@ -681,7 +682,7 @@ void intel_vblank_evade_init(const struct intel_crtc_state *old_crtc_state,
 		else
 			evade->vblank_start = intel_vrr_vmax_vblank_start(crtc_state);
 
-		vblank_delay = intel_vrr_vblank_delay(crtc_state);
+		vblank_delay = crtc_state->set_context_latency;
 	} else {
 		evade->vblank_start = intel_mode_vblank_start(adjusted_mode);
 
@@ -767,3 +768,13 @@ int intel_vblank_evade(struct intel_vblank_evade_ctx *evade)
 
 	return scanline;
 }
+
+int intel_crtc_vblank_length(const struct intel_crtc_state *crtc_state)
+{
+	const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+
+	if (crtc_state->vrr.enable)
+		return crtc_state->vrr.guardband;
+	else
+		return adjusted_mode->crtc_vtotal - adjusted_mode->crtc_vblank_start;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_vblank.h b/drivers/gpu/drm/i915/display/intel_vblank.h
index 21fbb08d61d5..98d04cacd65f 100644
--- a/drivers/gpu/drm/i915/display/intel_vblank.h
+++ b/drivers/gpu/drm/i915/display/intel_vblank.h
@@ -48,4 +48,6 @@ const struct intel_crtc_state *
 intel_pre_commit_crtc_state(struct intel_atomic_state *state,
 			    struct intel_crtc *crtc);
 
+int intel_crtc_vblank_length(const struct intel_crtc_state *crtc_state);
+
 #endif /* __INTEL_VBLANK_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c
index 8e799e225af1..0e727fc5e80c 100644
--- a/drivers/gpu/drm/i915/display/intel_vdsc.c
+++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
@@ -11,10 +11,10 @@
 #include <drm/drm_fixed.h>
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dsi.h"
 #include "intel_qp_tables.h"
@@ -372,6 +372,22 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config)
 	return 0;
 }
 
+void intel_dsc_enable_on_crtc(struct intel_crtc_state *crtc_state)
+{
+	crtc_state->dsc.compression_enabled_on_link = true;
+	crtc_state->dsc.compression_enable = true;
+}
+
+bool intel_dsc_enabled_on_link(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	drm_WARN_ON(display->drm, crtc_state->dsc.compression_enable &&
+		    !crtc_state->dsc.compression_enabled_on_link);
+
+	return crtc_state->dsc.compression_enabled_on_link;
+}
+
 enum intel_display_power_domain
 intel_dsc_power_domain(struct intel_crtc *crtc, enum transcoder cpu_transcoder)
 {
@@ -1077,3 +1093,11 @@ int intel_vdsc_min_cdclk(const struct intel_crtc_state *crtc_state)
 
 	return min_cdclk;
 }
+
+unsigned int intel_vdsc_prefill_lines(const struct intel_crtc_state *crtc_state)
+{
+	if (!crtc_state->dsc.compression_enable)
+		return 0;
+
+	return 0x18000; /* 1.5 */
+}
diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.h b/drivers/gpu/drm/i915/display/intel_vdsc.h
index 9e2812f99dd7..99f64ac54b27 100644
--- a/drivers/gpu/drm/i915/display/intel_vdsc.h
+++ b/drivers/gpu/drm/i915/display/intel_vdsc.h
@@ -20,6 +20,8 @@ void intel_uncompressed_joiner_enable(const struct intel_crtc_state *crtc_state)
 void intel_dsc_enable(const struct intel_crtc_state *crtc_state);
 void intel_dsc_disable(const struct intel_crtc_state *crtc_state);
 int intel_dsc_compute_params(struct intel_crtc_state *pipe_config);
+void intel_dsc_enable_on_crtc(struct intel_crtc_state *crtc_state);
+bool intel_dsc_enabled_on_link(const struct intel_crtc_state *crtc_state);
 void intel_dsc_get_config(struct intel_crtc_state *crtc_state);
 enum intel_display_power_domain
 intel_dsc_power_domain(struct intel_crtc *crtc, enum transcoder cpu_transcoder);
@@ -32,5 +34,6 @@ void intel_dsc_dp_pps_write(struct intel_encoder *encoder,
 void intel_vdsc_state_dump(struct drm_printer *p, int indent,
 			   const struct intel_crtc_state *crtc_state);
 int intel_vdsc_min_cdclk(const struct intel_crtc_state *crtc_state);
+unsigned int intel_vdsc_prefill_lines(const struct intel_crtc_state *crtc_state);
 
 #endif /* __INTEL_VDSC_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
index 3eed37f271b0..00cbc126fb36 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -10,8 +10,11 @@
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
 #include "intel_dp.h"
+#include "intel_psr.h"
 #include "intel_vrr.h"
 #include "intel_vrr_regs.h"
+#include "skl_prefill.h"
+#include "skl_watermark.h"
 
 #define FIXED_POINT_PRECISION		100
 #define CMRR_PRECISION_TOLERANCE	10
@@ -22,6 +25,9 @@ bool intel_vrr_is_capable(struct intel_connector *connector)
 	const struct drm_display_info *info = &connector->base.display_info;
 	struct intel_dp *intel_dp;
 
+	if (!HAS_VRR(display))
+		return false;
+
 	/*
 	 * DP Sink is capable of VRR video timings if
 	 * Ignore MSA bit is set in DPCD.
@@ -46,8 +52,7 @@ bool intel_vrr_is_capable(struct intel_connector *connector)
 		return false;
 	}
 
-	return HAS_VRR(display) &&
-		info->monitor_range.max_vfreq - info->monitor_range.min_vfreq > 10;
+	return info->monitor_range.max_vfreq - info->monitor_range.min_vfreq > 10;
 }
 
 bool intel_vrr_is_in_range(struct intel_connector *connector, int vrefresh)
@@ -79,44 +84,42 @@ intel_vrr_check_modeset(struct intel_atomic_state *state)
 	}
 }
 
-static int intel_vrr_real_vblank_delay(const struct intel_crtc_state *crtc_state)
-{
-	return crtc_state->hw.adjusted_mode.crtc_vblank_start -
-		crtc_state->hw.adjusted_mode.crtc_vdisplay;
-}
-
 static int intel_vrr_extra_vblank_delay(struct intel_display *display)
 {
 	/*
 	 * On ICL/TGL VRR hardware inserts one extra scanline
 	 * just after vactive, which pushes the vmin decision
-	 * boundary ahead accordingly. We'll include the extra
-	 * scanline in our vblank delay estimates to make sure
-	 * that we never underestimate how long we have until
-	 * the delayed vblank has passed.
+	 * boundary ahead accordingly, and thus reduces the
+	 * max guardband length by one scanline.
 	 */
 	return DISPLAY_VER(display) < 13 ? 1 : 0;
 }
 
-int intel_vrr_vblank_delay(const struct intel_crtc_state *crtc_state)
+static int intel_vrr_vmin_flipline_offset(struct intel_display *display)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
-
-	return intel_vrr_real_vblank_delay(crtc_state) +
-		intel_vrr_extra_vblank_delay(display);
-}
-
-static int intel_vrr_flipline_offset(struct intel_display *display)
-{
-	/* ICL/TGL hardware imposes flipline>=vmin+1 */
+	/*
+	 * ICL/TGL hardware imposes flipline>=vmin+1
+	 *
+	 * We reduce the vmin value to compensate when programming the
+	 * hardware. This approach allows flipline to remain set at the
+	 * original value, and thus the frame will have the desired
+	 * minimum vtotal.
+	 */
 	return DISPLAY_VER(display) < 13 ? 1 : 0;
 }
 
-static int intel_vrr_vmin_flipline(const struct intel_crtc_state *crtc_state)
+static int intel_vrr_guardband_to_pipeline_full(const struct intel_crtc_state *crtc_state,
+						int guardband)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
+	/* hardware imposes one extra scanline somewhere */
+	return guardband - crtc_state->framestart_delay - 1;
+}
 
-	return crtc_state->vrr.vmin + intel_vrr_flipline_offset(display);
+static int intel_vrr_pipeline_full_to_guardband(const struct intel_crtc_state *crtc_state,
+						int pipeline_full)
+{
+	/* hardware imposes one extra scanline somewhere */
+	return pipeline_full + crtc_state->framestart_delay + 1;
 }
 
 /*
@@ -135,48 +138,26 @@ static int intel_vrr_vmin_flipline(const struct intel_crtc_state *crtc_state)
  *
  * framestart_delay is programmable 1-4.
  */
-static int intel_vrr_vblank_exit_length(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_display *display = to_intel_display(crtc_state);
-
-	if (DISPLAY_VER(display) >= 13)
-		return crtc_state->vrr.guardband;
-	else
-		/* hardware imposes one extra scanline somewhere */
-		return crtc_state->vrr.pipeline_full + crtc_state->framestart_delay + 1;
-}
 
 int intel_vrr_vmin_vtotal(const struct intel_crtc_state *crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
-
 	/* Min vblank actually determined by flipline */
-	if (DISPLAY_VER(display) >= 13)
-		return intel_vrr_vmin_flipline(crtc_state);
-	else
-		return intel_vrr_vmin_flipline(crtc_state) +
-			intel_vrr_real_vblank_delay(crtc_state);
+	return crtc_state->vrr.vmin;
 }
 
 int intel_vrr_vmax_vtotal(const struct intel_crtc_state *crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
-
-	if (DISPLAY_VER(display) >= 13)
-		return crtc_state->vrr.vmax;
-	else
-		return crtc_state->vrr.vmax +
-			intel_vrr_real_vblank_delay(crtc_state);
+	return crtc_state->vrr.vmax;
 }
 
 int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state)
 {
-	return intel_vrr_vmin_vtotal(crtc_state) - intel_vrr_vblank_exit_length(crtc_state);
+	return intel_vrr_vmin_vtotal(crtc_state) - crtc_state->vrr.guardband;
 }
 
 int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state)
 {
-	return intel_vrr_vmax_vtotal(crtc_state) - intel_vrr_vblank_exit_length(crtc_state);
+	return intel_vrr_vmax_vtotal(crtc_state) - crtc_state->vrr.guardband;
 }
 
 static bool
@@ -230,7 +211,6 @@ cmrr_get_vtotal(struct intel_crtc_state *crtc_state, bool video_mode_required)
 static
 void intel_vrr_compute_cmrr_timings(struct intel_crtc_state *crtc_state)
 {
-	crtc_state->cmrr.enable = true;
 	/*
 	 * TODO: Compute precise target refresh rate to determine
 	 * if video_mode_required should be true. Currently set to
@@ -240,52 +220,76 @@ void intel_vrr_compute_cmrr_timings(struct intel_crtc_state *crtc_state)
 	crtc_state->vrr.vmax = cmrr_get_vtotal(crtc_state, false);
 	crtc_state->vrr.vmin = crtc_state->vrr.vmax;
 	crtc_state->vrr.flipline = crtc_state->vrr.vmin;
+
+	crtc_state->cmrr.enable = true;
 	crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
 }
 
 static
-void intel_vrr_compute_vrr_timings(struct intel_crtc_state *crtc_state)
+void intel_vrr_compute_vrr_timings(struct intel_crtc_state *crtc_state,
+				   int vmin, int vmax)
 {
+	crtc_state->vrr.vmax = vmax;
+	crtc_state->vrr.vmin = vmin;
+	crtc_state->vrr.flipline = crtc_state->vrr.vmin;
+
 	crtc_state->vrr.enable = true;
 	crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
 }
 
+static
+void intel_vrr_compute_fixed_rr_timings(struct intel_crtc_state *crtc_state)
+{
+	/* For fixed rr,  vmin = vmax = flipline */
+	crtc_state->vrr.vmax = crtc_state->hw.adjusted_mode.crtc_vtotal;
+	crtc_state->vrr.vmin = crtc_state->vrr.vmax;
+	crtc_state->vrr.flipline = crtc_state->vrr.vmin;
+}
+
+static int intel_vrr_hw_value(const struct intel_crtc_state *crtc_state,
+			      int value)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	/*
+	 * On TGL vmin/vmax/flipline also need to be
+	 * adjusted by the SCL to maintain correct vtotals.
+	 */
+	if (DISPLAY_VER(display) >= 13)
+		return value;
+	else
+		return value - crtc_state->set_context_latency;
+}
+
 /*
  * For fixed refresh rate mode Vmin, Vmax and Flipline all are set to
  * Vtotal value.
  */
 static
-int intel_vrr_fixed_rr_vtotal(const struct intel_crtc_state *crtc_state)
+int intel_vrr_fixed_rr_hw_vtotal(const struct intel_crtc_state *crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
-	int crtc_vtotal = crtc_state->hw.adjusted_mode.crtc_vtotal;
-
-	if (DISPLAY_VER(display) >= 13)
-		return crtc_vtotal;
-	else
-		return crtc_vtotal -
-			intel_vrr_real_vblank_delay(crtc_state);
+	return intel_vrr_hw_value(crtc_state, crtc_state->hw.adjusted_mode.crtc_vtotal);
 }
 
 static
-int intel_vrr_fixed_rr_vmax(const struct intel_crtc_state *crtc_state)
+int intel_vrr_fixed_rr_hw_vmax(const struct intel_crtc_state *crtc_state)
 {
-	return intel_vrr_fixed_rr_vtotal(crtc_state);
+	return intel_vrr_fixed_rr_hw_vtotal(crtc_state);
 }
 
 static
-int intel_vrr_fixed_rr_vmin(const struct intel_crtc_state *crtc_state)
+int intel_vrr_fixed_rr_hw_vmin(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 
-	return intel_vrr_fixed_rr_vtotal(crtc_state) -
-		intel_vrr_flipline_offset(display);
+	return intel_vrr_fixed_rr_hw_vtotal(crtc_state) -
+		intel_vrr_vmin_flipline_offset(display);
 }
 
 static
-int intel_vrr_fixed_rr_flipline(const struct intel_crtc_state *crtc_state)
+int intel_vrr_fixed_rr_hw_flipline(const struct intel_crtc_state *crtc_state)
 {
-	return intel_vrr_fixed_rr_vtotal(crtc_state);
+	return intel_vrr_fixed_rr_hw_vtotal(crtc_state);
 }
 
 void intel_vrr_set_fixed_rr_timings(const struct intel_crtc_state *crtc_state)
@@ -297,22 +301,11 @@ void intel_vrr_set_fixed_rr_timings(const struct intel_crtc_state *crtc_state)
 		return;
 
 	intel_de_write(display, TRANS_VRR_VMIN(display, cpu_transcoder),
-		       intel_vrr_fixed_rr_vmin(crtc_state) - 1);
+		       intel_vrr_fixed_rr_hw_vmin(crtc_state) - 1);
 	intel_de_write(display, TRANS_VRR_VMAX(display, cpu_transcoder),
-		       intel_vrr_fixed_rr_vmax(crtc_state) - 1);
+		       intel_vrr_fixed_rr_hw_vmax(crtc_state) - 1);
 	intel_de_write(display, TRANS_VRR_FLIPLINE(display, cpu_transcoder),
-		       intel_vrr_fixed_rr_flipline(crtc_state) - 1);
-}
-
-static
-void intel_vrr_compute_fixed_rr_timings(struct intel_crtc_state *crtc_state)
-{
-	/*
-	 * For fixed rr,  vmin = vmax = flipline.
-	 * vmin is already set to crtc_vtotal set vmax and flipline the same.
-	 */
-	crtc_state->vrr.vmax = crtc_state->hw.adjusted_mode.crtc_vtotal;
-	crtc_state->vrr.flipline = crtc_state->hw.adjusted_mode.crtc_vtotal;
+		       intel_vrr_fixed_rr_hw_flipline(crtc_state) - 1);
 }
 
 static
@@ -384,60 +377,131 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
 		vmax = vmin;
 	}
 
-	crtc_state->vrr.vmin = vmin;
-	crtc_state->vrr.vmax = vmax;
-
-	crtc_state->vrr.flipline = crtc_state->vrr.vmin;
-
 	if (crtc_state->uapi.vrr_enabled && vmin < vmax)
-		intel_vrr_compute_vrr_timings(crtc_state);
+		intel_vrr_compute_vrr_timings(crtc_state, vmin, vmax);
 	else if (is_cmrr_frac_required(crtc_state) && is_edp)
 		intel_vrr_compute_cmrr_timings(crtc_state);
 	else
 		intel_vrr_compute_fixed_rr_timings(crtc_state);
 
-	/*
-	 * flipline determines the min vblank length the hardware will
-	 * generate, and on ICL/TGL flipline>=vmin+1, hence we reduce
-	 * vmin by one to make sure we can get the actual min vblank length.
-	 */
-	crtc_state->vrr.vmin -= intel_vrr_flipline_offset(display);
-
 	if (HAS_AS_SDP(display)) {
 		crtc_state->vrr.vsync_start =
 			(crtc_state->hw.adjusted_mode.crtc_vtotal -
-			 crtc_state->hw.adjusted_mode.vsync_start);
+			 crtc_state->hw.adjusted_mode.crtc_vsync_start);
 		crtc_state->vrr.vsync_end =
 			(crtc_state->hw.adjusted_mode.crtc_vtotal -
-			 crtc_state->hw.adjusted_mode.vsync_end);
+			 crtc_state->hw.adjusted_mode.crtc_vsync_end);
 	}
 }
 
-void intel_vrr_compute_config_late(struct intel_crtc_state *crtc_state)
+static int
+intel_vrr_max_hw_guardband(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int max_pipeline_full = REG_FIELD_MAX(VRR_CTL_PIPELINE_FULL_MASK);
+
+	if (DISPLAY_VER(display) >= 13)
+		return REG_FIELD_MAX(XELPD_VRR_CTL_VRR_GUARDBAND_MASK);
+	else
+		return intel_vrr_pipeline_full_to_guardband(crtc_state,
+							    max_pipeline_full);
+}
+
+static int
+intel_vrr_max_vblank_guardband(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
 
+	return crtc_state->vrr.vmin -
+	       adjusted_mode->crtc_vdisplay -
+	       crtc_state->set_context_latency -
+	       intel_vrr_extra_vblank_delay(display);
+}
+
+static int
+intel_vrr_max_guardband(struct intel_crtc_state *crtc_state)
+{
+	return min(intel_vrr_max_hw_guardband(crtc_state),
+		   intel_vrr_max_vblank_guardband(crtc_state));
+}
+
+static
+int intel_vrr_compute_optimized_guardband(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct skl_prefill_ctx prefill_ctx;
+	int prefill_latency_us;
+	int guardband = 0;
+
+	skl_prefill_init_worst(&prefill_ctx, crtc_state);
+
+	/*
+	 * The SoC power controller runs SAGV mutually exclusive with package C states,
+	 * so the max of package C and SAGV latencies is used to compute the min prefill guardband.
+	 * PM delay = max(sagv_latency, pkgc_max_latency (highest enabled wm level 1 and up))
+	 */
+	prefill_latency_us = max(display->sagv.block_time_us,
+				 skl_watermark_max_latency(display, 1));
+
+	guardband = skl_prefill_min_guardband(&prefill_ctx,
+					      crtc_state,
+					      prefill_latency_us);
+
+	if (intel_crtc_has_dp_encoder(crtc_state)) {
+		guardband = max(guardband, intel_psr_min_guardband(crtc_state));
+		guardband = max(guardband, intel_dp_sdp_min_guardband(crtc_state, true));
+	}
+
+	return guardband;
+}
+
+static bool intel_vrr_use_optimized_guardband(const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * #TODO: Enable optimized guardband for HDMI
+	 * For HDMI lot of infoframes are transmitted a line or two after vsync.
+	 * Since with optimized guardband the double bufferring point is at delayed vblank,
+	 * we need to ensure that vsync happens after delayed vblank for the HDMI case.
+	 */
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		return false;
+
+	return true;
+}
+
+void intel_vrr_compute_guardband(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+	struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+	int guardband;
+
 	if (!intel_vrr_possible(crtc_state))
 		return;
 
-	if (DISPLAY_VER(display) >= 13) {
-		crtc_state->vrr.guardband =
-			crtc_state->vrr.vmin - adjusted_mode->crtc_vblank_start;
-	} else {
-		/* hardware imposes one extra scanline somewhere */
-		crtc_state->vrr.pipeline_full =
-			min(255, crtc_state->vrr.vmin - adjusted_mode->crtc_vblank_start -
-			    crtc_state->framestart_delay - 1);
+	if (intel_vrr_use_optimized_guardband(crtc_state))
+		guardband = intel_vrr_compute_optimized_guardband(crtc_state);
+	else
+		guardband = crtc_state->vrr.vmin - adjusted_mode->crtc_vdisplay;
 
+	crtc_state->vrr.guardband = min(guardband, intel_vrr_max_guardband(crtc_state));
+
+	if (intel_vrr_always_use_vrr_tg(display)) {
+		adjusted_mode->crtc_vblank_start  =
+			adjusted_mode->crtc_vtotal - crtc_state->vrr.guardband;
 		/*
-		 * vmin/vmax/flipline also need to be adjusted by
-		 * the vblank delay to maintain correct vtotals.
+		 * pipe_mode has already been derived from the
+		 * original adjusted_mode, keep the two in sync.
 		 */
-		crtc_state->vrr.vmin -= intel_vrr_real_vblank_delay(crtc_state);
-		crtc_state->vrr.vmax -= intel_vrr_real_vblank_delay(crtc_state);
-		crtc_state->vrr.flipline -= intel_vrr_real_vblank_delay(crtc_state);
+		pipe_mode->crtc_vblank_start =
+			adjusted_mode->crtc_vblank_start;
 	}
+
+	if (DISPLAY_VER(display) < 13)
+		crtc_state->vrr.pipeline_full =
+			intel_vrr_guardband_to_pipeline_full(crtc_state,
+							     crtc_state->vrr.guardband);
 }
 
 static u32 trans_vrr_ctl(const struct intel_crtc_state *crtc_state)
@@ -461,6 +525,9 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
 	struct intel_display *display = to_intel_display(crtc_state);
 	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
 
+	if (!HAS_VRR(display))
+		return;
+
 	/*
 	 * This bit seems to have two meanings depending on the platform:
 	 * TGL: generate VRR "safe window" for DSB vblank waits
@@ -489,7 +556,7 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
 
 	intel_vrr_set_fixed_rr_timings(crtc_state);
 
-	if (!intel_vrr_always_use_vrr_tg(display) && !crtc_state->vrr.enable)
+	if (!intel_vrr_always_use_vrr_tg(display))
 		intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
 			       trans_vrr_ctl(crtc_state));
 
@@ -498,6 +565,18 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
 			       TRANS_VRR_VSYNC(display, cpu_transcoder),
 			       VRR_VSYNC_END(crtc_state->vrr.vsync_end) |
 			       VRR_VSYNC_START(crtc_state->vrr.vsync_start));
+
+	/*
+	 * For BMG and LNL+ onwards the EMP_AS_SDP_TL is used for programming
+	 * double buffering point and transmission line for VRR packets for
+	 * HDMI2.1/DP/eDP/DP->HDMI2.1 PCON.
+	 * Since currently we support VRR only for DP/eDP, so this is programmed
+	 * to for Adaptive Sync SDP to Vsync start.
+	 */
+	if (DISPLAY_VERx100(display) == 1401 || DISPLAY_VER(display) >= 20)
+		intel_de_write(display,
+			       EMP_AS_SDP_TL(display, cpu_transcoder),
+			       EMP_AS_SDP_DB_TL(crtc_state->vrr.vsync_start));
 }
 
 void intel_vrr_send_push(struct intel_dsb *dsb,
@@ -576,73 +655,97 @@ bool intel_vrr_always_use_vrr_tg(struct intel_display *display)
 	return false;
 }
 
-static
-void intel_vrr_set_db_point_and_transmission_line(const struct intel_crtc_state *crtc_state)
+static int intel_vrr_hw_vmin(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	return intel_vrr_hw_value(crtc_state, crtc_state->vrr.vmin) -
+		intel_vrr_vmin_flipline_offset(display);
+}
+
+static int intel_vrr_hw_vmax(const struct intel_crtc_state *crtc_state)
+{
+	return intel_vrr_hw_value(crtc_state, crtc_state->vrr.vmax);
+}
+
+static int intel_vrr_hw_flipline(const struct intel_crtc_state *crtc_state)
+{
+	return intel_vrr_hw_value(crtc_state, crtc_state->vrr.flipline);
+}
+
+static void intel_vrr_set_vrr_timings(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
 
+	intel_de_write(display, TRANS_VRR_VMIN(display, cpu_transcoder),
+		       intel_vrr_hw_vmin(crtc_state) - 1);
+	intel_de_write(display, TRANS_VRR_VMAX(display, cpu_transcoder),
+		       intel_vrr_hw_vmax(crtc_state) - 1);
+	intel_de_write(display, TRANS_VRR_FLIPLINE(display, cpu_transcoder),
+		       intel_vrr_hw_flipline(crtc_state) - 1);
+}
+
+static void intel_vrr_tg_enable(const struct intel_crtc_state *crtc_state,
+				bool cmrr_enable)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+	u32 vrr_ctl;
+
+	intel_de_write(display, TRANS_PUSH(display, cpu_transcoder), TRANS_PUSH_EN);
+
+	vrr_ctl = VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state);
+
 	/*
-	 * For BMG and LNL+ onwards the EMP_AS_SDP_TL is used for programming
-	 * double buffering point and transmission line for VRR packets for
-	 * HDMI2.1/DP/eDP/DP->HDMI2.1 PCON.
-	 * Since currently we support VRR only for DP/eDP, so this is programmed
-	 * to for Adaptive Sync SDP to Vsync start.
+	 * FIXME this might be broken as bspec seems to imply that
+	 * even VRR_CTL_CMRR_ENABLE is armed by TRANS_CMRR_N_HI
+	 * when enabling CMRR (but not when disabling CMRR?).
 	 */
-	if (DISPLAY_VERx100(display) == 1401 || DISPLAY_VER(display) >= 20)
-		intel_de_write(display,
-			       EMP_AS_SDP_TL(display, cpu_transcoder),
-			       EMP_AS_SDP_DB_TL(crtc_state->vrr.vsync_start));
+	if (cmrr_enable)
+		vrr_ctl |= VRR_CTL_CMRR_ENABLE;
+
+	intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder), vrr_ctl);
+}
+
+static void intel_vrr_tg_disable(const struct intel_crtc_state *old_crtc_state)
+{
+	struct intel_display *display = to_intel_display(old_crtc_state);
+	enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder;
+
+	intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
+		       trans_vrr_ctl(old_crtc_state));
+
+	if (intel_de_wait_for_clear(display,
+				    TRANS_VRR_STATUS(display, cpu_transcoder),
+				    VRR_STATUS_VRR_EN_LIVE, 1000))
+		drm_err(display->drm, "Timed out waiting for VRR live status to clear\n");
+
+	intel_de_write(display, TRANS_PUSH(display, cpu_transcoder), 0);
 }
 
 void intel_vrr_enable(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
 
 	if (!crtc_state->vrr.enable)
 		return;
 
-	intel_de_write(display, TRANS_VRR_VMIN(display, cpu_transcoder),
-		       crtc_state->vrr.vmin - 1);
-	intel_de_write(display, TRANS_VRR_VMAX(display, cpu_transcoder),
-		       crtc_state->vrr.vmax - 1);
-	intel_de_write(display, TRANS_VRR_FLIPLINE(display, cpu_transcoder),
-		       crtc_state->vrr.flipline - 1);
+	intel_vrr_set_vrr_timings(crtc_state);
 
-	intel_de_write(display, TRANS_PUSH(display, cpu_transcoder),
-		       TRANS_PUSH_EN);
-
-	if (!intel_vrr_always_use_vrr_tg(display)) {
-		intel_vrr_set_db_point_and_transmission_line(crtc_state);
-
-		if (crtc_state->cmrr.enable) {
-			intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-				       VRR_CTL_VRR_ENABLE | VRR_CTL_CMRR_ENABLE |
-				       trans_vrr_ctl(crtc_state));
-		} else {
-			intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-				       VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state));
-		}
-	}
+	if (!intel_vrr_always_use_vrr_tg(display))
+		intel_vrr_tg_enable(crtc_state, crtc_state->cmrr.enable);
 }
 
 void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state)
 {
 	struct intel_display *display = to_intel_display(old_crtc_state);
-	enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder;
 
 	if (!old_crtc_state->vrr.enable)
 		return;
 
-	if (!intel_vrr_always_use_vrr_tg(display)) {
-		intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-			       trans_vrr_ctl(old_crtc_state));
-		intel_de_wait_for_clear(display,
-					TRANS_VRR_STATUS(display, cpu_transcoder),
-					VRR_STATUS_VRR_EN_LIVE, 1000);
-		intel_de_write(display, TRANS_PUSH(display, cpu_transcoder), 0);
-	}
+	if (!intel_vrr_always_use_vrr_tg(display))
+		intel_vrr_tg_disable(old_crtc_state);
 
 	intel_vrr_set_fixed_rr_timings(old_crtc_state);
 }
@@ -650,52 +753,30 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state)
 void intel_vrr_transcoder_enable(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
-
-	if (!HAS_VRR(display))
-		return;
 
 	if (!intel_vrr_possible(crtc_state))
 		return;
 
-	if (!intel_vrr_always_use_vrr_tg(display)) {
-		intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-			       trans_vrr_ctl(crtc_state));
-		return;
-	}
-
-	intel_de_write(display, TRANS_PUSH(display, cpu_transcoder),
-		       TRANS_PUSH_EN);
-
-	intel_vrr_set_db_point_and_transmission_line(crtc_state);
-
-	intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-		       VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state));
+	if (intel_vrr_always_use_vrr_tg(display))
+		intel_vrr_tg_enable(crtc_state, false);
 }
 
-void intel_vrr_transcoder_disable(const struct intel_crtc_state *crtc_state)
+void intel_vrr_transcoder_disable(const struct intel_crtc_state *old_crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
-	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+	struct intel_display *display = to_intel_display(old_crtc_state);
 
-	if (!HAS_VRR(display))
+	if (!intel_vrr_possible(old_crtc_state))
 		return;
 
-	if (!intel_vrr_possible(crtc_state))
-		return;
-
-	intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder), 0);
-
-	intel_de_wait_for_clear(display, TRANS_VRR_STATUS(display, cpu_transcoder),
-				VRR_STATUS_VRR_EN_LIVE, 1000);
-	intel_de_write(display, TRANS_PUSH(display, cpu_transcoder), 0);
+	if (intel_vrr_always_use_vrr_tg(display))
+		intel_vrr_tg_disable(old_crtc_state);
 }
 
 bool intel_vrr_is_fixed_rr(const struct intel_crtc_state *crtc_state)
 {
 	return crtc_state->vrr.flipline &&
 	       crtc_state->vrr.flipline == crtc_state->vrr.vmax &&
-	       crtc_state->vrr.flipline == intel_vrr_vmin_flipline(crtc_state);
+	       crtc_state->vrr.flipline == crtc_state->vrr.vmin;
 }
 
 void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
@@ -720,14 +801,20 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
 					     TRANS_CMRR_M_HI(display, cpu_transcoder));
 	}
 
-	if (DISPLAY_VER(display) >= 13)
+	if (DISPLAY_VER(display) >= 13) {
 		crtc_state->vrr.guardband =
 			REG_FIELD_GET(XELPD_VRR_CTL_VRR_GUARDBAND_MASK, trans_vrr_ctl);
-	else
-		if (trans_vrr_ctl & VRR_CTL_PIPELINE_FULL_OVERRIDE)
+	} else {
+		if (trans_vrr_ctl & VRR_CTL_PIPELINE_FULL_OVERRIDE) {
 			crtc_state->vrr.pipeline_full =
 				REG_FIELD_GET(VRR_CTL_PIPELINE_FULL_MASK, trans_vrr_ctl);
 
+			crtc_state->vrr.guardband =
+				intel_vrr_pipeline_full_to_guardband(crtc_state,
+								     crtc_state->vrr.pipeline_full);
+		}
+	}
+
 	if (trans_vrr_ctl & VRR_CTL_FLIP_LINE_EN) {
 		crtc_state->vrr.flipline = intel_de_read(display,
 							 TRANS_VRR_FLIPLINE(display, cpu_transcoder)) + 1;
@@ -736,6 +823,15 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
 		crtc_state->vrr.vmin = intel_de_read(display,
 						     TRANS_VRR_VMIN(display, cpu_transcoder)) + 1;
 
+		if (DISPLAY_VER(display) < 13) {
+			/* undo what intel_vrr_hw_value() does when writing the values */
+			crtc_state->vrr.flipline += crtc_state->set_context_latency;
+			crtc_state->vrr.vmax += crtc_state->set_context_latency;
+			crtc_state->vrr.vmin += crtc_state->set_context_latency;
+
+			crtc_state->vrr.vmin += intel_vrr_vmin_flipline_offset(display);
+		}
+
 		/*
 		 * For platforms that always use VRR Timing Generator, the VTOTAL.Vtotal
 		 * bits are not filled. Since for these platforms TRAN_VMIN is always
@@ -771,4 +867,34 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
 	 */
 	if (crtc_state->vrr.enable)
 		crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
+
+	/*
+	 * For platforms that always use the VRR timing generator, we overwrite
+	 * crtc_vblank_start with vtotal - guardband to reflect the delayed
+	 * vblank start. This works for both default and optimized guardband values.
+	 * On other platforms, we keep the original value from
+	 * intel_get_transcoder_timings() and apply adjustments only in VRR-specific
+	 * paths as needed.
+	 */
+	if (intel_vrr_always_use_vrr_tg(display))
+		crtc_state->hw.adjusted_mode.crtc_vblank_start =
+			crtc_state->hw.adjusted_mode.crtc_vtotal -
+			crtc_state->vrr.guardband;
+}
+
+int intel_vrr_safe_window_start(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (DISPLAY_VER(display) >= 30)
+		return crtc_state->hw.adjusted_mode.crtc_vdisplay -
+		       crtc_state->set_context_latency;
+	else
+		return crtc_state->hw.adjusted_mode.crtc_vdisplay;
+}
+
+int intel_vrr_vmin_safe_window_end(const struct intel_crtc_state *crtc_state)
+{
+	return intel_vrr_vmin_vblank_start(crtc_state) -
+	       crtc_state->set_context_latency;
 }
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h b/drivers/gpu/drm/i915/display/intel_vrr.h
index 38bf9996b883..bc9044621635 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.h
+++ b/drivers/gpu/drm/i915/display/intel_vrr.h
@@ -21,7 +21,7 @@ bool intel_vrr_possible(const struct intel_crtc_state *crtc_state);
 void intel_vrr_check_modeset(struct intel_atomic_state *state);
 void intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
 			      struct drm_connector_state *conn_state);
-void intel_vrr_compute_config_late(struct intel_crtc_state *crtc_state);
+void intel_vrr_compute_guardband(struct intel_crtc_state *crtc_state);
 void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state);
 void intel_vrr_enable(const struct intel_crtc_state *crtc_state);
 void intel_vrr_send_push(struct intel_dsb *dsb,
@@ -35,11 +35,12 @@ int intel_vrr_vmax_vtotal(const struct intel_crtc_state *crtc_state);
 int intel_vrr_vmin_vtotal(const struct intel_crtc_state *crtc_state);
 int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state);
 int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state);
-int intel_vrr_vblank_delay(const struct intel_crtc_state *crtc_state);
 bool intel_vrr_is_fixed_rr(const struct intel_crtc_state *crtc_state);
 void intel_vrr_transcoder_enable(const struct intel_crtc_state *crtc_state);
 void intel_vrr_transcoder_disable(const struct intel_crtc_state *crtc_state);
 void intel_vrr_set_fixed_rr_timings(const struct intel_crtc_state *crtc_state);
 bool intel_vrr_always_use_vrr_tg(struct intel_display *display);
+int intel_vrr_safe_window_start(const struct intel_crtc_state *crtc_state);
+int intel_vrr_vmin_safe_window_end(const struct intel_crtc_state *crtc_state);
 
 #endif /* __INTEL_VRR_H__ */
diff --git a/drivers/gpu/drm/i915/display/skl_prefill.c b/drivers/gpu/drm/i915/display/skl_prefill.c
new file mode 100644
index 000000000000..4707c2e7127a
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/skl_prefill.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#include <linux/debugfs.h>
+
+#include <drm/drm_print.h>
+
+#include "intel_cdclk.h"
+#include "intel_display_core.h"
+#include "intel_display_types.h"
+#include "intel_vblank.h"
+#include "intel_vdsc.h"
+#include "skl_prefill.h"
+#include "skl_scaler.h"
+#include "skl_watermark.h"
+
+static unsigned int prefill_usecs_to_lines(const struct intel_crtc_state *crtc_state,
+					   unsigned int usecs)
+{
+	const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+
+	return DIV_ROUND_UP_ULL(mul_u32_u32(pipe_mode->crtc_clock, usecs << 16),
+				pipe_mode->crtc_htotal * 1000);
+}
+
+static void prefill_init(struct skl_prefill_ctx *ctx,
+			 const struct intel_crtc_state *crtc_state)
+{
+	memset(ctx, 0, sizeof(*ctx));
+
+	ctx->prefill.fixed = crtc_state->framestart_delay << 16;
+
+	/* 20 usec for translation walks/etc. */
+	ctx->prefill.fixed += prefill_usecs_to_lines(crtc_state, 20);
+
+	ctx->prefill.dsc = intel_vdsc_prefill_lines(crtc_state);
+}
+
+static void prefill_init_nocdclk_worst(struct skl_prefill_ctx *ctx,
+				       const struct intel_crtc_state *crtc_state)
+{
+	prefill_init(ctx, crtc_state);
+
+	ctx->prefill.wm0 = skl_wm0_prefill_lines_worst(crtc_state);
+	ctx->prefill.scaler_1st = skl_scaler_1st_prefill_lines_worst(crtc_state);
+	ctx->prefill.scaler_2nd = skl_scaler_2nd_prefill_lines_worst(crtc_state);
+
+	ctx->adj.scaler_1st = skl_scaler_1st_prefill_adjustment_worst(crtc_state);
+	ctx->adj.scaler_2nd = skl_scaler_2nd_prefill_adjustment_worst(crtc_state);
+}
+
+static void prefill_init_nocdclk(struct skl_prefill_ctx *ctx,
+				 const struct intel_crtc_state *crtc_state)
+{
+	prefill_init(ctx, crtc_state);
+
+	ctx->prefill.wm0 = skl_wm0_prefill_lines(crtc_state);
+	ctx->prefill.scaler_1st = skl_scaler_1st_prefill_lines(crtc_state);
+	ctx->prefill.scaler_2nd = skl_scaler_2nd_prefill_lines(crtc_state);
+
+	ctx->adj.scaler_1st = skl_scaler_1st_prefill_adjustment(crtc_state);
+	ctx->adj.scaler_2nd = skl_scaler_2nd_prefill_adjustment(crtc_state);
+}
+
+static unsigned int prefill_adjust(unsigned int value, unsigned int factor)
+{
+	return DIV_ROUND_UP_ULL(mul_u32_u32(value, factor), 0x10000);
+}
+
+static unsigned int prefill_lines_nocdclk(const struct skl_prefill_ctx *ctx)
+{
+	unsigned int prefill = 0;
+
+	prefill += ctx->prefill.dsc;
+	prefill = prefill_adjust(prefill, ctx->adj.scaler_2nd);
+
+	prefill += ctx->prefill.scaler_2nd;
+	prefill = prefill_adjust(prefill, ctx->adj.scaler_1st);
+
+	prefill += ctx->prefill.scaler_1st;
+	prefill += ctx->prefill.wm0;
+
+	return prefill;
+}
+
+static unsigned int prefill_lines_cdclk(const struct skl_prefill_ctx *ctx)
+{
+	return prefill_adjust(prefill_lines_nocdclk(ctx), ctx->adj.cdclk);
+}
+
+static unsigned int prefill_lines_full(const struct skl_prefill_ctx *ctx)
+{
+	return ctx->prefill.fixed + prefill_lines_cdclk(ctx);
+}
+
+void skl_prefill_init_worst(struct skl_prefill_ctx *ctx,
+			    const struct intel_crtc_state *crtc_state)
+{
+	prefill_init_nocdclk_worst(ctx, crtc_state);
+
+	ctx->adj.cdclk = intel_cdclk_prefill_adjustment_worst(crtc_state);
+
+	ctx->prefill.full = prefill_lines_full(ctx);
+}
+
+void skl_prefill_init(struct skl_prefill_ctx *ctx,
+		      const struct intel_crtc_state *crtc_state)
+{
+	prefill_init_nocdclk(ctx, crtc_state);
+
+	ctx->adj.cdclk = intel_cdclk_prefill_adjustment(crtc_state);
+
+	ctx->prefill.full = prefill_lines_full(ctx);
+}
+
+static unsigned int prefill_lines_with_latency(const struct skl_prefill_ctx *ctx,
+					       const struct intel_crtc_state *crtc_state,
+					       unsigned int latency_us)
+{
+	return ctx->prefill.full + prefill_usecs_to_lines(crtc_state, latency_us);
+}
+
+int skl_prefill_min_guardband(const struct skl_prefill_ctx *ctx,
+			      const struct intel_crtc_state *crtc_state,
+			      unsigned int latency_us)
+{
+	unsigned int prefill = prefill_lines_with_latency(ctx, crtc_state, latency_us);
+
+	return DIV_ROUND_UP(prefill, 0x10000);
+}
+
+static unsigned int prefill_guardband(const struct intel_crtc_state *crtc_state)
+{
+	return intel_crtc_vblank_length(crtc_state) << 16;
+}
+
+bool skl_prefill_vblank_too_short(const struct skl_prefill_ctx *ctx,
+				  const struct intel_crtc_state *crtc_state,
+				  unsigned int latency_us)
+{
+	unsigned int guardband = prefill_guardband(crtc_state);
+	unsigned int prefill = prefill_lines_with_latency(ctx, crtc_state, latency_us);
+
+	return guardband < prefill;
+}
+
+int skl_prefill_min_cdclk(const struct skl_prefill_ctx *ctx,
+			  const struct intel_crtc_state *crtc_state)
+{
+	unsigned int prefill_unadjusted = prefill_lines_nocdclk(ctx);
+	unsigned int prefill_available = prefill_guardband(crtc_state) - ctx->prefill.fixed;
+
+	return intel_cdclk_min_cdclk_for_prefill(crtc_state, prefill_unadjusted,
+						 prefill_available);
+}
diff --git a/drivers/gpu/drm/i915/display/skl_prefill.h b/drivers/gpu/drm/i915/display/skl_prefill.h
new file mode 100644
index 000000000000..028ee19b64ce
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/skl_prefill.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __SKL_PREFILL_H__
+#define __SKL_PREFILL_H__
+
+#include <linux/types.h>
+
+struct intel_crtc_state;
+
+struct skl_prefill_ctx {
+	/* .16 scanlines */
+	struct {
+		unsigned int fixed;
+		unsigned int wm0;
+		unsigned int scaler_1st;
+		unsigned int scaler_2nd;
+		unsigned int dsc;
+		unsigned int full;
+	} prefill;
+
+	/* .16 adjustment factors */
+	struct {
+		unsigned int cdclk;
+		unsigned int scaler_1st;
+		unsigned int scaler_2nd;
+	} adj;
+};
+
+void skl_prefill_init_worst(struct skl_prefill_ctx *ctx,
+			    const struct intel_crtc_state *crtc_state);
+void skl_prefill_init(struct skl_prefill_ctx *ctx,
+		      const struct intel_crtc_state *crtc_state);
+
+bool skl_prefill_vblank_too_short(const struct skl_prefill_ctx *ctx,
+				  const struct intel_crtc_state *crtc_state,
+				  unsigned int latency_us);
+int skl_prefill_min_guardband(const struct skl_prefill_ctx *ctx,
+			      const struct intel_crtc_state *crtc_state,
+			      unsigned int latency_us);
+int skl_prefill_min_cdclk(const struct skl_prefill_ctx *ctx,
+			  const struct intel_crtc_state *crtc_state);
+
+#endif /* __SKL_PREFILL_H__ */
diff --git a/drivers/gpu/drm/i915/display/skl_scaler.c b/drivers/gpu/drm/i915/display/skl_scaler.c
index c6cccf170ff1..4c4deac7f9c8 100644
--- a/drivers/gpu/drm/i915/display/skl_scaler.c
+++ b/drivers/gpu/drm/i915/display/skl_scaler.c
@@ -5,11 +5,13 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
+#include "intel_casf.h"
+#include "intel_casf_regs.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_trace.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_fb.h"
 #include "skl_scaler.h"
@@ -282,7 +284,8 @@ int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state)
 				 drm_rect_width(&crtc_state->pipe_src),
 				 drm_rect_height(&crtc_state->pipe_src),
 				 width, height, NULL, 0,
-				 crtc_state->pch_pfit.enabled);
+				 crtc_state->pch_pfit.enabled ||
+				 intel_casf_needs_scaler(crtc_state));
 }
 
 /**
@@ -321,7 +324,9 @@ int skl_update_scaler_plane(struct intel_crtc_state *crtc_state,
 }
 
 static int intel_allocate_scaler(struct intel_crtc_scaler_state *scaler_state,
-				 struct intel_crtc *crtc)
+				 struct intel_crtc *crtc,
+				 struct intel_plane_state *plane_state,
+				 bool casf_scaler)
 {
 	int i;
 
@@ -329,6 +334,10 @@ static int intel_allocate_scaler(struct intel_crtc_scaler_state *scaler_state,
 		if (scaler_state->scalers[i].in_use)
 			continue;
 
+		/* CASF needs second scaler */
+		if (!plane_state && casf_scaler && i != 1)
+			continue;
+
 		scaler_state->scalers[i].in_use = true;
 
 		return i;
@@ -379,7 +388,7 @@ static int intel_atomic_setup_scaler(struct intel_crtc_state *crtc_state,
 				     int num_scalers_need, struct intel_crtc *crtc,
 				     const char *name, int idx,
 				     struct intel_plane_state *plane_state,
-				     int *scaler_id)
+				     int *scaler_id, bool casf_scaler)
 {
 	struct intel_display *display = to_intel_display(crtc);
 	struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state;
@@ -388,7 +397,7 @@ static int intel_atomic_setup_scaler(struct intel_crtc_state *crtc_state,
 	int vscale = 0;
 
 	if (*scaler_id < 0)
-		*scaler_id = intel_allocate_scaler(scaler_state, crtc);
+		*scaler_id = intel_allocate_scaler(scaler_state, crtc, plane_state, casf_scaler);
 
 	if (drm_WARN(display->drm, *scaler_id < 0,
 		     "Cannot find scaler for %s:%d\n", name, idx))
@@ -520,10 +529,14 @@ static int setup_crtc_scaler(struct intel_atomic_state *state,
 	struct intel_crtc_scaler_state *scaler_state =
 		&crtc_state->scaler_state;
 
+	if (intel_casf_needs_scaler(crtc_state) && crtc_state->pch_pfit.enabled)
+		return -EINVAL;
+
 	return intel_atomic_setup_scaler(crtc_state,
 					 hweight32(scaler_state->scaler_users),
 					 crtc, "CRTC", crtc->base.base.id,
-					 NULL, &scaler_state->scaler_id);
+					 NULL, &scaler_state->scaler_id,
+					 intel_casf_needs_scaler(crtc_state));
 }
 
 static int setup_plane_scaler(struct intel_atomic_state *state,
@@ -558,7 +571,8 @@ static int setup_plane_scaler(struct intel_atomic_state *state,
 	return intel_atomic_setup_scaler(crtc_state,
 					 hweight32(scaler_state->scaler_users),
 					 crtc, "PLANE", plane->base.base.id,
-					 plane_state, &plane_state->scaler_id);
+					 plane_state, &plane_state->scaler_id,
+					 false);
 }
 
 /**
@@ -738,6 +752,52 @@ static void skl_scaler_setup_filter(struct intel_display *display,
 	}
 }
 
+#define CASF_SCALER_FILTER_SELECT \
+	(PS_FILTER_PROGRAMMED | \
+	PS_Y_VERT_FILTER_SELECT(0) | \
+	PS_Y_HORZ_FILTER_SELECT(0) | \
+	PS_UV_VERT_FILTER_SELECT(0) | \
+	PS_UV_HORZ_FILTER_SELECT(0))
+
+void skl_scaler_setup_casf(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct intel_display *display = to_intel_display(crtc);
+	struct drm_display_mode *adjusted_mode =
+	&crtc_state->hw.adjusted_mode;
+	struct intel_crtc_scaler_state *scaler_state =
+		&crtc_state->scaler_state;
+	struct drm_rect src, dest;
+	int id, width, height;
+	int x = 0, y = 0;
+	enum pipe pipe = crtc->pipe;
+	u32 ps_ctrl;
+
+	width = adjusted_mode->crtc_hdisplay;
+	height = adjusted_mode->crtc_vdisplay;
+
+	drm_rect_init(&dest, x, y, width, height);
+
+	width = drm_rect_width(&dest);
+	height = drm_rect_height(&dest);
+	id = scaler_state->scaler_id;
+
+	drm_rect_init(&src, 0, 0,
+		      drm_rect_width(&crtc_state->pipe_src) << 16,
+		      drm_rect_height(&crtc_state->pipe_src) << 16);
+
+	trace_intel_pipe_scaler_update_arm(crtc, id, x, y, width, height);
+
+	ps_ctrl = PS_SCALER_EN | PS_BINDING_PIPE | scaler_state->scalers[id].mode |
+		  CASF_SCALER_FILTER_SELECT;
+
+	intel_de_write_fw(display, SKL_PS_CTRL(pipe, id), ps_ctrl);
+	intel_de_write_fw(display, SKL_PS_WIN_POS(pipe, id),
+			  PS_WIN_XPOS(x) | PS_WIN_YPOS(y));
+	intel_de_write_fw(display, SKL_PS_WIN_SZ(pipe, id),
+			  PS_WIN_XSIZE(width) | PS_WIN_YSIZE(height));
+}
+
 void skl_pfit_enable(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
@@ -921,16 +981,23 @@ void skl_scaler_get_config(struct intel_crtc_state *crtc_state)
 			continue;
 
 		id = i;
-		crtc_state->pch_pfit.enabled = true;
+
+		/* Read CASF regs for second scaler */
+		if (HAS_CASF(display) && id == 1)
+			intel_casf_sharpness_get_config(crtc_state);
+
+		if (!crtc_state->hw.casf_params.casf_enable)
+			crtc_state->pch_pfit.enabled = true;
 
 		pos = intel_de_read(display, SKL_PS_WIN_POS(crtc->pipe, i));
 		size = intel_de_read(display, SKL_PS_WIN_SZ(crtc->pipe, i));
 
-		drm_rect_init(&crtc_state->pch_pfit.dst,
-			      REG_FIELD_GET(PS_WIN_XPOS_MASK, pos),
-			      REG_FIELD_GET(PS_WIN_YPOS_MASK, pos),
-			      REG_FIELD_GET(PS_WIN_XSIZE_MASK, size),
-			      REG_FIELD_GET(PS_WIN_YSIZE_MASK, size));
+		if (!crtc_state->hw.casf_params.casf_enable)
+			drm_rect_init(&crtc_state->pch_pfit.dst,
+				      REG_FIELD_GET(PS_WIN_XPOS_MASK, pos),
+				      REG_FIELD_GET(PS_WIN_YPOS_MASK, pos),
+				      REG_FIELD_GET(PS_WIN_XSIZE_MASK, size),
+				      REG_FIELD_GET(PS_WIN_YSIZE_MASK, size));
 
 		scaler_state->scalers[i].in_use = true;
 		break;
@@ -968,3 +1035,144 @@ void adl_scaler_ecc_unmask(const struct intel_crtc_state *crtc_state)
 			  1);
 	intel_de_write(display, XELPD_DISPLAY_ERR_FATAL_MASK, 0);
 }
+
+unsigned int skl_scaler_1st_prefill_adjustment(const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * FIXME don't have scalers assigned yet
+	 * so can't look up the scale factors
+	 */
+	return 0x10000;
+}
+
+unsigned int skl_scaler_2nd_prefill_adjustment(const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * FIXME don't have scalers assigned yet
+	 * so can't look up the scale factors
+	 */
+	return 0x10000;
+}
+
+unsigned int skl_scaler_1st_prefill_lines(const struct intel_crtc_state *crtc_state)
+{
+	const struct intel_crtc_scaler_state *scaler_state =
+		&crtc_state->scaler_state;
+	int num_scalers = hweight32(scaler_state->scaler_users);
+
+	if (num_scalers > 0)
+		return 4 << 16;
+
+	return 0;
+}
+
+unsigned int skl_scaler_2nd_prefill_lines(const struct intel_crtc_state *crtc_state)
+{
+	const struct intel_crtc_scaler_state *scaler_state =
+		&crtc_state->scaler_state;
+	int num_scalers = hweight32(scaler_state->scaler_users);
+
+	if (num_scalers > 1 && crtc_state->pch_pfit.enabled)
+		return 4 << 16;
+
+	return 0;
+}
+
+static unsigned int _skl_scaler_max_scale(const struct intel_crtc_state *crtc_state,
+					  unsigned int max_scale)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	/*
+	 * Downscaling requires increasing cdclk, so max scale
+	 * factor is limited to the max_dotclock/dotclock ratio.
+	 *
+	 * FIXME find out the max downscale factors properly
+	 */
+	return min(max_scale, DIV_ROUND_UP_ULL((u64)display->cdclk.max_dotclk_freq << 16,
+					       crtc_state->hw.pipe_mode.crtc_clock));
+}
+
+unsigned int skl_scaler_max_total_scale(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	unsigned int max_scale;
+
+	if (crtc->num_scalers < 1)
+		return 0x10000;
+
+	/* FIXME find out the max downscale factors properly */
+	max_scale = 9 << 16;
+	if (crtc->num_scalers > 1)
+		max_scale *= 9;
+
+	return _skl_scaler_max_scale(crtc_state, max_scale);
+}
+
+unsigned int skl_scaler_max_hscale(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	unsigned int max_scale;
+
+	if (crtc->num_scalers < 1)
+		return 0x10000;
+
+	/* FIXME find out the max downscale factors properly */
+	max_scale = 3 << 16;
+
+	return _skl_scaler_max_scale(crtc_state, max_scale);
+}
+
+unsigned int skl_scaler_max_scale(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	unsigned int max_scale;
+
+	if (crtc->num_scalers < 1)
+		return 0x10000;
+
+	/* FIXME find out the max downscale factors properly */
+	max_scale = 9 << 16;
+
+	return _skl_scaler_max_scale(crtc_state, max_scale);
+}
+
+unsigned int skl_scaler_1st_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc->num_scalers > 0)
+		return skl_scaler_max_scale(crtc_state);
+	else
+		return 0x10000;
+}
+
+unsigned int skl_scaler_2nd_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc->num_scalers > 1)
+		return skl_scaler_max_scale(crtc_state);
+	else
+		return 0x10000;
+}
+
+unsigned int skl_scaler_1st_prefill_lines_worst(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc->num_scalers > 0)
+		return 4 << 16;
+	else
+		return 0;
+}
+
+unsigned int skl_scaler_2nd_prefill_lines_worst(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc->num_scalers > 1)
+		return 4 << 16;
+	else
+		return 0;
+}
diff --git a/drivers/gpu/drm/i915/display/skl_scaler.h b/drivers/gpu/drm/i915/display/skl_scaler.h
index 12a19016c5f6..7e8d819c019d 100644
--- a/drivers/gpu/drm/i915/display/skl_scaler.h
+++ b/drivers/gpu/drm/i915/display/skl_scaler.h
@@ -36,6 +36,8 @@ void skl_scaler_disable(const struct intel_crtc_state *old_crtc_state);
 
 void skl_scaler_get_config(struct intel_crtc_state *crtc_state);
 
+void skl_scaler_setup_casf(struct intel_crtc_state *crtc_state);
+
 enum drm_mode_status
 skl_scaler_mode_valid(struct intel_display *display,
 		      const struct drm_display_mode *mode,
@@ -45,4 +47,19 @@ skl_scaler_mode_valid(struct intel_display *display,
 void adl_scaler_ecc_mask(const struct intel_crtc_state *crtc_state);
 
 void adl_scaler_ecc_unmask(const struct intel_crtc_state *crtc_state);
+
+unsigned int skl_scaler_max_total_scale(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_max_scale(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_max_hscale(const struct intel_crtc_state *crtc_state);
+
+unsigned int skl_scaler_1st_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_2nd_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_1st_prefill_lines_worst(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_2nd_prefill_lines_worst(const struct intel_crtc_state *crtc_state);
+
+unsigned int skl_scaler_1st_prefill_adjustment(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_2nd_prefill_adjustment(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_1st_prefill_lines(const struct intel_crtc_state *crtc_state);
+unsigned int skl_scaler_2nd_prefill_lines(const struct intel_crtc_state *crtc_state);
+
 #endif
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index e13fb781e7b2..ba1bf0bd4c55 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -7,15 +7,15 @@
 #include <drm/drm_blend.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_print.h>
 
 #include "pxp/intel_pxp.h"
-#include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_bo.h"
 #include "intel_de.h"
 #include "intel_display_irq.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dpt.h"
 #include "intel_fb.h"
 #include "intel_fbc.h"
@@ -24,6 +24,7 @@
 #include "intel_plane.h"
 #include "intel_psr.h"
 #include "intel_psr_regs.h"
+#include "intel_step.h"
 #include "skl_scaler.h"
 #include "skl_universal_plane.h"
 #include "skl_universal_plane_regs.h"
@@ -389,44 +390,19 @@ static int glk_plane_max_width(const struct drm_framebuffer *fb,
 	}
 }
 
+static int adl_plane_min_width(const struct drm_framebuffer *fb,
+			       int color_plane,
+			       unsigned int rotation)
+{
+	return 16 / fb->format->cpp[color_plane];
+}
+
 static int icl_plane_min_width(const struct drm_framebuffer *fb,
 			       int color_plane,
 			       unsigned int rotation)
 {
 	/* Wa_14011264657, Wa_14011050563: gen11+ */
-	switch (fb->format->format) {
-	case DRM_FORMAT_C8:
-		return 18;
-	case DRM_FORMAT_RGB565:
-		return 10;
-	case DRM_FORMAT_XRGB8888:
-	case DRM_FORMAT_XBGR8888:
-	case DRM_FORMAT_ARGB8888:
-	case DRM_FORMAT_ABGR8888:
-	case DRM_FORMAT_XRGB2101010:
-	case DRM_FORMAT_XBGR2101010:
-	case DRM_FORMAT_ARGB2101010:
-	case DRM_FORMAT_ABGR2101010:
-	case DRM_FORMAT_XVYU2101010:
-	case DRM_FORMAT_Y212:
-	case DRM_FORMAT_Y216:
-		return 6;
-	case DRM_FORMAT_NV12:
-		return 20;
-	case DRM_FORMAT_P010:
-	case DRM_FORMAT_P012:
-	case DRM_FORMAT_P016:
-		return 12;
-	case DRM_FORMAT_XRGB16161616F:
-	case DRM_FORMAT_XBGR16161616F:
-	case DRM_FORMAT_ARGB16161616F:
-	case DRM_FORMAT_ABGR16161616F:
-	case DRM_FORMAT_XVYU12_16161616:
-	case DRM_FORMAT_XVYU16161616:
-		return 4;
-	default:
-		return 1;
-	}
+	return 16 / fb->format->cpp[color_plane] + 2;
 }
 
 static int xe3_plane_max_width(const struct drm_framebuffer *fb,
@@ -463,6 +439,23 @@ static int skl_plane_max_height(const struct drm_framebuffer *fb,
 	return 4096;
 }
 
+static enum intel_fbc_id skl_fbc_id_for_pipe(enum pipe pipe)
+{
+	return pipe - PIPE_A + INTEL_FBC_A;
+}
+
+static bool skl_plane_has_fbc(struct intel_display *display,
+			      enum intel_fbc_id fbc_id, enum plane_id plane_id)
+{
+	if ((DISPLAY_RUNTIME_INFO(display)->fbc_mask & BIT(fbc_id)) == 0)
+		return false;
+
+	if (DISPLAY_VER(display) >= 20)
+		return icl_is_hdr_plane(display, plane_id);
+	else
+		return plane_id == PLANE_1;
+}
+
 static int icl_plane_max_height(const struct drm_framebuffer *fb,
 				int color_plane,
 				unsigned int rotation)
@@ -898,6 +891,25 @@ static void icl_plane_disable_sel_fetch_arm(struct intel_dsb *dsb,
 	intel_de_write_dsb(display, dsb, SEL_FETCH_PLANE_CTL(pipe, plane->id), 0);
 }
 
+static void x3p_lpd_plane_update_pixel_normalizer(struct intel_dsb *dsb,
+						  struct intel_plane *plane,
+						  bool enable)
+{
+	struct intel_display *display = to_intel_display(plane);
+	enum intel_fbc_id fbc_id = skl_fbc_id_for_pipe(plane->pipe);
+	u32 val;
+
+	/* Only HDR planes have pixel normalizer and don't matter if no FBC */
+	if (!skl_plane_has_fbc(display, fbc_id, plane->id))
+		return;
+
+	val = enable ? PLANE_PIXEL_NORMALIZE_NORM_FACTOR(PLANE_PIXEL_NORMALIZE_NORM_FACTOR_1_0) |
+		       PLANE_PIXEL_NORMALIZE_ENABLE : 0;
+
+	intel_de_write_dsb(display, dsb,
+			   PLANE_PIXEL_NORMALIZE(plane->pipe, plane->id), val);
+}
+
 static void
 icl_plane_disable_arm(struct intel_dsb *dsb,
 		      struct intel_plane *plane,
@@ -913,6 +925,10 @@ icl_plane_disable_arm(struct intel_dsb *dsb,
 	skl_write_plane_wm(dsb, plane, crtc_state);
 
 	icl_plane_disable_sel_fetch_arm(dsb, plane, crtc_state);
+
+	if (DISPLAY_VER(display) >= 35)
+		x3p_lpd_plane_update_pixel_normalizer(dsb, plane, false);
+
 	intel_de_write_dsb(display, dsb, PLANE_CTL(pipe, plane_id), 0);
 	intel_de_write_dsb(display, dsb, PLANE_SURF(pipe, plane_id), 0);
 }
@@ -1572,7 +1588,7 @@ icl_plane_update_noarm(struct intel_dsb *dsb,
 	}
 
 	/* FLAT CCS doesn't need to program AUX_DIST */
-	if (!HAS_FLAT_CCS(to_i915(display->drm)) && DISPLAY_VER(display) < 20)
+	if (HAS_AUX_CCS(display))
 		intel_de_write_dsb(display, dsb, PLANE_AUX_DIST(pipe, plane_id),
 				   skl_plane_aux_dist(plane_state, color_plane));
 
@@ -1642,6 +1658,14 @@ icl_plane_update_arm(struct intel_dsb *dsb,
 
 	icl_plane_update_sel_fetch_arm(dsb, plane, crtc_state, plane_state);
 
+	/*
+	 * In order to have FBC for fp16 formats pixel normalizer block must be
+	 * active. Check if pixel normalizer block need to be enabled for FBC.
+	 * If needed, use normalization factor as 1.0 and enable the block.
+	 */
+	if (intel_fbc_is_enable_pixel_normalizer(plane_state))
+		x3p_lpd_plane_update_pixel_normalizer(dsb, plane, true);
+
 	/*
 	 * The control register self-arms if the plane was previously
 	 * disabled. Try to make the plane enable atomic by writing
@@ -1780,8 +1804,7 @@ static int skl_plane_check_fb(const struct intel_crtc_state *crtc_state,
 	}
 
 	/* Y-tiling is not supported in IF-ID Interlace mode */
-	if (crtc_state->hw.enable &&
-	    crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE &&
+	if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE &&
 	    fb->modifier != DRM_FORMAT_MOD_LINEAR &&
 	    fb->modifier != I915_FORMAT_MOD_X_TILED) {
 		drm_dbg_kms(display->drm,
@@ -1884,6 +1907,14 @@ static int intel_plane_min_width(struct intel_plane *plane,
 		return 1;
 }
 
+static int intel_plane_min_height(struct intel_plane *plane,
+				  const struct drm_framebuffer *fb,
+				  int color_plane,
+				  unsigned int rotation)
+{
+	return 1;
+}
+
 static int intel_plane_max_width(struct intel_plane *plane,
 				 const struct drm_framebuffer *fb,
 				 int color_plane,
@@ -2015,6 +2046,7 @@ static int skl_check_main_surface(struct intel_plane_state *plane_state)
 	int w = drm_rect_width(&plane_state->uapi.src) >> 16;
 	int h = drm_rect_height(&plane_state->uapi.src) >> 16;
 	int min_width = intel_plane_min_width(plane, fb, 0, rotation);
+	int min_height = intel_plane_min_height(plane, fb, 0, rotation);
 	int max_width = intel_plane_max_width(plane, fb, 0, rotation);
 	int max_height = intel_plane_max_height(plane, fb, 0, rotation);
 	unsigned int alignment = plane->min_alignment(plane, fb, 0);
@@ -2022,11 +2054,11 @@ static int skl_check_main_surface(struct intel_plane_state *plane_state)
 	u32 offset;
 	int ret;
 
-	if (w > max_width || w < min_width || h > max_height || h < 1) {
+	if (w > max_width || w < min_width || h > max_height || h < min_height) {
 		drm_dbg_kms(display->drm,
-			    "[PLANE:%d:%s] requested Y/RGB source size %dx%d outside limits (min: %dx1 max: %dx%d)\n",
+			    "[PLANE:%d:%s] requested Y/RGB source size %dx%d outside limits (min: %dx%d max: %dx%d)\n",
 			    plane->base.base.id, plane->base.name,
-			    w, h, min_width, max_width, max_height);
+			    w, h, min_width, min_height, max_width, max_height);
 		return -EINVAL;
 	}
 
@@ -2086,6 +2118,8 @@ static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
 	int uv_plane = 1;
 	int ccs_plane = intel_fb_is_ccs_modifier(fb->modifier) ?
 			skl_main_to_aux_plane(fb, uv_plane) : 0;
+	int min_width = intel_plane_min_width(plane, fb, uv_plane, rotation);
+	int min_height = intel_plane_min_height(plane, fb, uv_plane, rotation);
 	int max_width = intel_plane_max_width(plane, fb, uv_plane, rotation);
 	int max_height = intel_plane_max_height(plane, fb, uv_plane, rotation);
 	int x = plane_state->uapi.src.x1 >> 17;
@@ -2095,11 +2129,11 @@ static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
 	u32 offset;
 
 	/* FIXME not quite sure how/if these apply to the chroma plane */
-	if (w > max_width || h > max_height) {
+	if (w > max_width || w < min_width || h > max_height || h < min_height) {
 		drm_dbg_kms(display->drm,
-			    "[PLANE:%d:%s] CbCr source size %dx%d too big (limit %dx%d)\n",
+			    "[PLANE:%d:%s] requested CbCr source size %dx%d outside limits (min: %dx%d max: %dx%d)\n",
 			    plane->base.base.id, plane->base.name,
-			    w, h, max_width, max_height);
+			    w, h, min_width, min_height, max_width, max_height);
 		return -EINVAL;
 	}
 
@@ -2404,23 +2438,6 @@ void icl_link_nv12_planes(struct intel_plane_state *uv_plane_state,
 	}
 }
 
-static enum intel_fbc_id skl_fbc_id_for_pipe(enum pipe pipe)
-{
-	return pipe - PIPE_A + INTEL_FBC_A;
-}
-
-static bool skl_plane_has_fbc(struct intel_display *display,
-			      enum intel_fbc_id fbc_id, enum plane_id plane_id)
-{
-	if ((DISPLAY_RUNTIME_INFO(display)->fbc_mask & BIT(fbc_id)) == 0)
-		return false;
-
-	if (DISPLAY_VER(display) >= 20)
-		return icl_is_hdr_plane(display, plane_id);
-	else
-		return plane_id == PLANE_1;
-}
-
 static struct intel_fbc *skl_plane_fbc(struct intel_display *display,
 				       enum pipe pipe, enum plane_id plane_id)
 {
@@ -2439,13 +2456,10 @@ static bool skl_plane_has_planar(struct intel_display *display,
 	if (display->platform.skylake || display->platform.broxton)
 		return false;
 
-	if (DISPLAY_VER(display) == 9 && pipe == PIPE_C)
+	if (pipe == PIPE_C)
 		return false;
 
-	if (plane_id != PLANE_1 && plane_id != PLANE_2)
-		return false;
-
-	return true;
+	return plane_id == PLANE_1 || plane_id == PLANE_2;
 }
 
 static const u32 *skl_get_plane_formats(struct intel_display *display,
@@ -2461,11 +2475,17 @@ static const u32 *skl_get_plane_formats(struct intel_display *display,
 	}
 }
 
+static bool glk_plane_has_planar(struct intel_display *display,
+				 enum pipe pipe, enum plane_id plane_id)
+{
+	return plane_id == PLANE_1 || plane_id == PLANE_2;
+}
+
 static const u32 *glk_get_plane_formats(struct intel_display *display,
 					enum pipe pipe, enum plane_id plane_id,
 					int *num_formats)
 {
-	if (skl_plane_has_planar(display, pipe, plane_id)) {
+	if (glk_plane_has_planar(display, pipe, plane_id)) {
 		*num_formats = ARRAY_SIZE(glk_planar_formats);
 		return glk_planar_formats;
 	} else {
@@ -2705,8 +2725,10 @@ skl_plane_disable_flip_done(struct intel_plane *plane)
 static bool skl_plane_has_rc_ccs(struct intel_display *display,
 				 enum pipe pipe, enum plane_id plane_id)
 {
-	return pipe != PIPE_C &&
-		(plane_id == PLANE_1 || plane_id == PLANE_2);
+	if (pipe == PIPE_C)
+		return false;
+
+	return plane_id == PLANE_1 || plane_id == PLANE_2;
 }
 
 static u8 skl_plane_caps(struct intel_display *display,
@@ -2834,11 +2856,15 @@ skl_universal_plane_create(struct intel_display *display,
 	intel_fbc_add_plane(skl_plane_fbc(display, pipe, plane_id), plane);
 
 	if (DISPLAY_VER(display) >= 30) {
+		plane->min_width = adl_plane_min_width;
 		plane->max_width = xe3_plane_max_width;
 		plane->max_height = icl_plane_max_height;
 		plane->min_cdclk = icl_plane_min_cdclk;
 	} else if (DISPLAY_VER(display) >= 11) {
-		plane->min_width = icl_plane_min_width;
+		if (DISPLAY_VER(display) >= 14 || display->platform.alderlake_p)
+			plane->min_width = adl_plane_min_width;
+		else
+			plane->min_width = icl_plane_min_width;
 		if (icl_is_hdr_plane(display, plane_id))
 			plane->max_width = icl_hdr_plane_max_width;
 		else
@@ -2930,7 +2956,7 @@ skl_universal_plane_create(struct intel_display *display,
 		caps = skl_plane_caps(display, pipe, plane_id);
 
 	/* FIXME: xe has problems with AUX */
-	if (!IS_ENABLED(I915) && !HAS_FLAT_CCS(to_i915(display->drm)))
+	if (!IS_ENABLED(I915) && HAS_AUX_CCS(display))
 		caps &= ~(INTEL_PLANE_CAP_CCS_RC |
 			  INTEL_PLANE_CAP_CCS_RC_CC |
 			  INTEL_PLANE_CAP_CCS_MC);
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane_regs.h b/drivers/gpu/drm/i915/display/skl_universal_plane_regs.h
index ca9fdfbbe57c..7c944d3ca855 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane_regs.h
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane_regs.h
@@ -455,4 +455,16 @@
 								_SEL_FETCH_PLANE_OFFSET_5_A, _SEL_FETCH_PLANE_OFFSET_5_B, \
 								_SEL_FETCH_PLANE_OFFSET_6_A, _SEL_FETCH_PLANE_OFFSET_6_B)
 
+#define _PLANE_PIXEL_NORMALIZE_1_A		0x701a8
+#define _PLANE_PIXEL_NORMALIZE_2_A		0x702a8
+#define _PLANE_PIXEL_NORMALIZE_1_B		0x711a8
+#define _PLANE_PIXEL_NORMALIZE_2_B		0x712a8
+#define PLANE_PIXEL_NORMALIZE(pipe, plane)	_MMIO_SKL_PLANE((pipe), (plane), \
+								_PLANE_PIXEL_NORMALIZE_1_A, _PLANE_PIXEL_NORMALIZE_1_B, \
+								_PLANE_PIXEL_NORMALIZE_2_A, _PLANE_PIXEL_NORMALIZE_2_B)
+#define   PLANE_PIXEL_NORMALIZE_ENABLE			REG_BIT(31)
+#define   PLANE_PIXEL_NORMALIZE_NORM_FACTOR_MASK	REG_GENMASK(15, 0)
+#define   PLANE_PIXEL_NORMALIZE_NORM_FACTOR(val)	REG_FIELD_PREP(PLANE_PIXEL_NORMALIZE_NORM_FACTOR_MASK, (val))
+#define   PLANE_PIXEL_NORMALIZE_NORM_FACTOR_1_0		0x3c00
+
 #endif /* __SKL_UNIVERSAL_PLANE_REGS_H__ */
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index d74cbb43ae6f..6d050408618c 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -10,7 +10,6 @@
 
 #include "soc/intel_dram.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "i9xx_wm.h"
 #include "intel_atomic.h"
 #include "intel_bw.h"
@@ -23,12 +22,16 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_fb.h"
 #include "intel_fixed.h"
 #include "intel_flipq.h"
 #include "intel_pcode.h"
 #include "intel_plane.h"
+#include "intel_vblank.h"
 #include "intel_wm.h"
+#include "skl_prefill.h"
+#include "skl_scaler.h"
 #include "skl_universal_plane_regs.h"
 #include "skl_watermark.h"
 #include "skl_watermark_regs.h"
@@ -1636,26 +1639,11 @@ skl_wm_method2(u32 pixel_rate, u32 pipe_htotal, u32 latency,
 	return ret;
 }
 
-static uint_fixed_16_16_t
-intel_get_linetime_us(const struct intel_crtc_state *crtc_state)
+static int skl_wm_linetime_us(const struct intel_crtc_state *crtc_state,
+			      int pixel_rate)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
-	u32 pixel_rate;
-	u32 crtc_htotal;
-	uint_fixed_16_16_t linetime_us;
-
-	if (!crtc_state->hw.active)
-		return u32_to_fixed16(0);
-
-	pixel_rate = crtc_state->pixel_rate;
-
-	if (drm_WARN_ON(display->drm, pixel_rate == 0))
-		return u32_to_fixed16(0);
-
-	crtc_htotal = crtc_state->hw.pipe_mode.crtc_htotal;
-	linetime_us = div_fixed16(crtc_htotal * 1000, pixel_rate);
-
-	return linetime_us;
+	return DIV_ROUND_UP(crtc_state->hw.pipe_mode.crtc_htotal * 1000,
+			    pixel_rate);
 }
 
 static int
@@ -1743,7 +1731,7 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
 	wp->y_tile_minimum = mul_u32_fixed16(wp->y_min_scanlines,
 					     wp->plane_blocks_per_line);
 
-	wp->linetime_us = fixed16_to_u32_round_up(intel_get_linetime_us(crtc_state));
+	wp->linetime_us = skl_wm_linetime_us(crtc_state, plane_pixel_rate);
 
 	return 0;
 }
@@ -1878,18 +1866,21 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
 			} else {
 				blocks++;
 			}
-
-			/*
-			 * Make sure result blocks for higher latency levels are
-			 * at least as high as level below the current level.
-			 * Assumption in DDB algorithm optimization for special
-			 * cases. Also covers Display WA #1125 for RC.
-			 */
-			if (result_prev->blocks > blocks)
-				blocks = result_prev->blocks;
 		}
 	}
 
+	/*
+	 * Make sure result blocks for higher latency levels are
+	 * at least as high as level below the current level.
+	 * Assumption in DDB algorithm optimization for special
+	 * cases. Also covers Display WA #1125 for RC.
+	 *
+	 * Let's always do this as the algorithm can give non
+	 * monotonic results on any platform.
+	 */
+	blocks = max_t(u32, blocks, result_prev->blocks);
+	lines = max_t(u32, lines, result_prev->lines);
+
 	if (DISPLAY_VER(display) >= 11) {
 		if (wp->y_tiled) {
 			int extra_lines;
@@ -2157,103 +2148,55 @@ static int icl_build_plane_wm(struct intel_crtc_state *crtc_state,
 	return 0;
 }
 
-static int
-cdclk_prefill_adjustment(const struct intel_crtc_state *crtc_state)
+unsigned int skl_wm0_prefill_lines_worst(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	struct intel_atomic_state *state =
-		to_intel_atomic_state(crtc_state->uapi.state);
-	const struct intel_cdclk_state *cdclk_state;
+	struct intel_plane *plane = to_intel_plane(crtc_state->uapi.crtc->primary);
+	const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+	int ret, pixel_rate, width, level = 0;
+	const struct drm_format_info *info;
+	struct skl_wm_level wm = {};
+	struct skl_wm_params wp;
+	unsigned int latency;
+	u64 modifier;
+	u32 format;
 
-	cdclk_state = intel_atomic_get_cdclk_state(state);
-	if (IS_ERR(cdclk_state)) {
-		drm_WARN_ON(display->drm, PTR_ERR(cdclk_state));
-		return 1;
-	}
+	/* only expected to be used for VRR guardband calculation */
+	drm_WARN_ON(display->drm, !HAS_VRR(display));
 
-	return min(1, DIV_ROUND_UP(crtc_state->pixel_rate,
-				   2 * intel_cdclk_logical(cdclk_state)));
-}
+	/* FIXME rather ugly to pick this by hand but maybe no better way? */
+	format = DRM_FORMAT_XBGR16161616F;
+	if (HAS_4TILE(display))
+		modifier = I915_FORMAT_MOD_4_TILED;
+	else
+		modifier = I915_FORMAT_MOD_Y_TILED;
 
-static int
-dsc_prefill_latency(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	const struct intel_crtc_scaler_state *scaler_state =
-					&crtc_state->scaler_state;
-	int linetime = DIV_ROUND_UP(1000 * crtc_state->hw.adjusted_mode.htotal,
-				    crtc_state->hw.adjusted_mode.clock);
-	int num_scaler_users = hweight32(scaler_state->scaler_users);
-	int chroma_downscaling_factor =
-		crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ? 2 : 1;
-	u32 dsc_prefill_latency = 0;
+	info = drm_get_format_info(display->drm, format, modifier);
 
-	if (!crtc_state->dsc.compression_enable ||
-	    !num_scaler_users ||
-	    num_scaler_users > crtc->num_scalers)
-		return dsc_prefill_latency;
+	pixel_rate = DIV_ROUND_UP_ULL(mul_u32_u32(skl_scaler_max_total_scale(crtc_state),
+						  pipe_mode->crtc_clock),
+				      0x10000);
 
-	dsc_prefill_latency = DIV_ROUND_UP(15 * linetime * chroma_downscaling_factor, 10);
+	/* FIXME limit to max plane width? */
+	width = DIV_ROUND_UP_ULL(mul_u32_u32(skl_scaler_max_hscale(crtc_state),
+					     pipe_mode->crtc_hdisplay),
+				 0x10000);
 
-	for (int i = 0; i < num_scaler_users; i++) {
-		u64 hscale_k, vscale_k;
+	/* FIXME is 90/270 rotation worse than 0/180? */
+	ret = skl_compute_wm_params(crtc_state, width, info,
+				    modifier, DRM_MODE_ROTATE_0,
+				    pixel_rate, &wp, 0, 1);
+	drm_WARN_ON(display->drm, ret);
 
-		hscale_k = max(1000, mul_u32_u32(scaler_state->scalers[i].hscale, 1000) >> 16);
-		vscale_k = max(1000, mul_u32_u32(scaler_state->scalers[i].vscale, 1000) >> 16);
-		dsc_prefill_latency = DIV_ROUND_UP_ULL(dsc_prefill_latency * hscale_k * vscale_k,
-						       1000000);
-	}
+	latency = skl_wm_latency(display, level, &wp);
 
-	dsc_prefill_latency *= cdclk_prefill_adjustment(crtc_state);
+	skl_compute_plane_wm(crtc_state, plane, level, latency, &wp, &wm, &wm);
 
-	return intel_usecs_to_scanlines(&crtc_state->hw.adjusted_mode, dsc_prefill_latency);
-}
+	/* FIXME is this sane? */
+	if (wm.min_ddb_alloc == U16_MAX)
+		wm.lines = skl_wm_max_lines(display);
 
-static int
-scaler_prefill_latency(const struct intel_crtc_state *crtc_state)
-{
-	const struct intel_crtc_scaler_state *scaler_state =
-					&crtc_state->scaler_state;
-	int num_scaler_users = hweight32(scaler_state->scaler_users);
-	int scaler_prefill_latency = 0;
-	int linetime = DIV_ROUND_UP(1000 * crtc_state->hw.adjusted_mode.htotal,
-				    crtc_state->hw.adjusted_mode.clock);
-
-	if (!num_scaler_users)
-		return scaler_prefill_latency;
-
-	scaler_prefill_latency = 4 * linetime;
-
-	if (num_scaler_users > 1) {
-		u64 hscale_k = max(1000, mul_u32_u32(scaler_state->scalers[0].hscale, 1000) >> 16);
-		u64 vscale_k = max(1000, mul_u32_u32(scaler_state->scalers[0].vscale, 1000) >> 16);
-		int chroma_downscaling_factor =
-			crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ? 2 : 1;
-		int latency;
-
-		latency = DIV_ROUND_UP_ULL((4 * linetime * hscale_k * vscale_k *
-					    chroma_downscaling_factor), 1000000);
-		scaler_prefill_latency += latency;
-	}
-
-	scaler_prefill_latency *= cdclk_prefill_adjustment(crtc_state);
-
-	return intel_usecs_to_scanlines(&crtc_state->hw.adjusted_mode, scaler_prefill_latency);
-}
-
-static bool
-skl_is_vblank_too_short(const struct intel_crtc_state *crtc_state,
-			int wm0_lines, int latency)
-{
-	const struct drm_display_mode *adjusted_mode =
-		&crtc_state->hw.adjusted_mode;
-
-	return crtc_state->framestart_delay +
-		intel_usecs_to_scanlines(adjusted_mode, latency) +
-		scaler_prefill_latency(crtc_state) +
-		dsc_prefill_latency(crtc_state) +
-		wm0_lines >
-		adjusted_mode->crtc_vtotal - adjusted_mode->crtc_vblank_start;
+	return wm.lines << 16;
 }
 
 static int skl_max_wm0_lines(const struct intel_crtc_state *crtc_state)
@@ -2272,15 +2215,21 @@ static int skl_max_wm0_lines(const struct intel_crtc_state *crtc_state)
 	return wm0_lines;
 }
 
+unsigned int skl_wm0_prefill_lines(const struct intel_crtc_state *crtc_state)
+{
+	return skl_max_wm0_lines(crtc_state) << 16;
+}
+
 /*
  * TODO: In case we use PKG_C_LATENCY to allow C-states when the delayed vblank
  * size is too small for the package C exit latency we need to notify PSR about
  * the scenario to apply Wa_16025596647.
  */
 static int skl_max_wm_level_for_vblank(struct intel_crtc_state *crtc_state,
-				       int wm0_lines)
+				       const struct skl_prefill_ctx *ctx)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	int level;
 
 	for (level = display->wm.num_levels - 1; level >= 0; level--) {
@@ -2295,10 +2244,13 @@ static int skl_max_wm_level_for_vblank(struct intel_crtc_state *crtc_state,
 		if (level == 0)
 			latency = 0;
 
-		if (!skl_is_vblank_too_short(crtc_state, wm0_lines, latency))
+		if (!skl_prefill_vblank_too_short(ctx, crtc_state, latency))
 			return level;
 	}
 
+	drm_dbg_kms(display->drm, "[CRTC:%d:%s] Not enough time in vblank for prefill\n",
+		    crtc->base.base.id, crtc->base.name);
+
 	return -EINVAL;
 }
 
@@ -2306,14 +2258,15 @@ static int skl_wm_check_vblank(struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	int wm0_lines, level;
+	struct skl_prefill_ctx ctx;
+	int level;
 
 	if (!crtc_state->hw.active)
 		return 0;
 
-	wm0_lines = skl_max_wm0_lines(crtc_state);
+	skl_prefill_init(&ctx, crtc_state);
 
-	level = skl_max_wm_level_for_vblank(crtc_state, wm0_lines);
+	level = skl_max_wm_level_for_vblank(crtc_state, &ctx);
 	if (level < 0)
 		return level;
 
@@ -2323,6 +2276,13 @@ static int skl_wm_check_vblank(struct intel_crtc_state *crtc_state)
 	 */
 	crtc_state->wm_level_disabled = level < display->wm.num_levels - 1;
 
+	/*
+	 * TODO: assert that we are in fact using the maximum guardband
+	 * if we end up disabling any WM levels here. Otherwise we clearly
+	 * failed in using a realistic worst case prefill estimate when
+	 * determining the guardband size.
+	 */
+
 	for (level++; level < display->wm.num_levels; level++) {
 		enum plane_id plane_id;
 
@@ -2341,8 +2301,8 @@ static int skl_wm_check_vblank(struct intel_crtc_state *crtc_state)
 
 	if (DISPLAY_VER(display) >= 12 &&
 	    display->sagv.block_time_us &&
-	    skl_is_vblank_too_short(crtc_state, wm0_lines,
-				    display->sagv.block_time_us)) {
+	    skl_prefill_vblank_too_short(&ctx, crtc_state,
+					 display->sagv.block_time_us)) {
 		enum plane_id plane_id;
 
 		for_each_plane_id_on_crtc(crtc, plane_id) {
@@ -3174,12 +3134,53 @@ void skl_watermark_ipc_init(struct intel_display *display)
 	skl_watermark_ipc_update(display);
 }
 
-static void
-adjust_wm_latency(struct intel_display *display,
-		  u16 wm[], int num_levels, int read_latency)
+static void multiply_wm_latency(struct intel_display *display, int mult)
+{
+	u16 *wm = display->wm.skl_latency;
+	int level, num_levels = display->wm.num_levels;
+
+	for (level = 0; level < num_levels; level++)
+		wm[level] *= mult;
+}
+
+static void increase_wm_latency(struct intel_display *display, int inc)
+{
+	u16 *wm = display->wm.skl_latency;
+	int level, num_levels = display->wm.num_levels;
+
+	wm[0] += inc;
+
+	for (level = 1; level < num_levels; level++) {
+		if (wm[level] == 0)
+			break;
+
+		wm[level] += inc;
+	}
+}
+
+static bool need_16gb_dimm_wa(struct intel_display *display)
 {
 	const struct dram_info *dram_info = intel_dram_info(display->drm);
-	int i, level;
+
+	return (display->platform.skylake || display->platform.kabylake ||
+		display->platform.coffeelake || display->platform.cometlake ||
+		DISPLAY_VER(display) == 11) && dram_info->has_16gb_dimms;
+}
+
+static int wm_read_latency(struct intel_display *display)
+{
+	if (DISPLAY_VER(display) >= 14)
+		return 6;
+	else if (DISPLAY_VER(display) >= 12)
+		return 3;
+	else
+		return 2;
+}
+
+static void sanitize_wm_latency(struct intel_display *display)
+{
+	u16 *wm = display->wm.skl_latency;
+	int level, num_levels = display->wm.num_levels;
 
 	/*
 	 * If a level n (n > 1) has a 0us latency, all levels m (m >= n)
@@ -3187,15 +3188,39 @@ adjust_wm_latency(struct intel_display *display,
 	 * of the punit to satisfy this requirement.
 	 */
 	for (level = 1; level < num_levels; level++) {
-		if (wm[level] == 0) {
-			for (i = level + 1; i < num_levels; i++)
-				wm[i] = 0;
-
-			num_levels = level;
+		if (wm[level] == 0)
 			break;
-		}
 	}
 
+	for (level = level + 1; level < num_levels; level++)
+		wm[level] = 0;
+}
+
+static void make_wm_latency_monotonic(struct intel_display *display)
+{
+	u16 *wm = display->wm.skl_latency;
+	int level, num_levels = display->wm.num_levels;
+
+	for (level = 1; level < num_levels; level++) {
+		if (wm[level] == 0)
+			break;
+
+		wm[level] = max(wm[level], wm[level-1]);
+	}
+}
+
+static void
+adjust_wm_latency(struct intel_display *display)
+{
+	u16 *wm = display->wm.skl_latency;
+
+	if (display->platform.dg2)
+		multiply_wm_latency(display, 2);
+
+	sanitize_wm_latency(display);
+
+	make_wm_latency_monotonic(display);
+
 	/*
 	 * WaWmMemoryReadLatency
 	 *
@@ -3203,24 +3228,22 @@ adjust_wm_latency(struct intel_display *display,
 	 * to add proper adjustment to each valid level we retrieve
 	 * from the punit when level 0 response data is 0us.
 	 */
-	if (wm[0] == 0) {
-		for (level = 0; level < num_levels; level++)
-			wm[level] += read_latency;
-	}
+	if (wm[0] == 0)
+		increase_wm_latency(display, wm_read_latency(display));
 
 	/*
-	 * WA Level-0 adjustment for 16Gb DIMMs: SKL+
+	 * WA Level-0 adjustment for 16Gb+ DIMMs: SKL+
 	 * If we could not get dimm info enable this WA to prevent from
-	 * any underrun. If not able to get DIMM info assume 16Gb DIMM
+	 * any underrun. If not able to get DIMM info assume 16Gb+ DIMM
 	 * to avoid any underrun.
 	 */
-	if (!display->platform.dg2 && dram_info->has_16gb_dimms)
-		wm[0] += 1;
+	if (need_16gb_dimm_wa(display))
+		increase_wm_latency(display, 1);
 }
 
-static void mtl_read_wm_latency(struct intel_display *display, u16 wm[])
+static void mtl_read_wm_latency(struct intel_display *display)
 {
-	int num_levels = display->wm.num_levels;
+	u16 *wm = display->wm.skl_latency;
 	u32 val;
 
 	val = intel_de_read(display, MTL_LATENCY_LP0_LP1);
@@ -3234,15 +3257,11 @@ static void mtl_read_wm_latency(struct intel_display *display, u16 wm[])
 	val = intel_de_read(display, MTL_LATENCY_LP4_LP5);
 	wm[4] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
 	wm[5] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
-
-	adjust_wm_latency(display, wm, num_levels, 6);
 }
 
-static void skl_read_wm_latency(struct intel_display *display, u16 wm[])
+static void skl_read_wm_latency(struct intel_display *display)
 {
-	int num_levels = display->wm.num_levels;
-	int read_latency = DISPLAY_VER(display) >= 12 ? 3 : 2;
-	int mult = display->platform.dg2 ? 2 : 1;
+	u16 *wm = display->wm.skl_latency;
 	u32 val;
 	int ret;
 
@@ -3254,10 +3273,10 @@ static void skl_read_wm_latency(struct intel_display *display, u16 wm[])
 		return;
 	}
 
-	wm[0] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_0_4_MASK, val) * mult;
-	wm[1] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_1_5_MASK, val) * mult;
-	wm[2] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_2_6_MASK, val) * mult;
-	wm[3] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_3_7_MASK, val) * mult;
+	wm[0] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_0_4_MASK, val);
+	wm[1] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_1_5_MASK, val);
+	wm[2] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_2_6_MASK, val);
+	wm[3] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_3_7_MASK, val);
 
 	/* read the second set of memory latencies[4:7] */
 	val = 1; /* data0 to be programmed to 1 for second set */
@@ -3267,12 +3286,10 @@ static void skl_read_wm_latency(struct intel_display *display, u16 wm[])
 		return;
 	}
 
-	wm[4] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_0_4_MASK, val) * mult;
-	wm[5] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_1_5_MASK, val) * mult;
-	wm[6] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_2_6_MASK, val) * mult;
-	wm[7] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_3_7_MASK, val) * mult;
-
-	adjust_wm_latency(display, wm, num_levels, read_latency);
+	wm[4] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_0_4_MASK, val);
+	wm[5] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_1_5_MASK, val);
+	wm[6] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_2_6_MASK, val);
+	wm[7] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_3_7_MASK, val);
 }
 
 static void skl_setup_wm_latency(struct intel_display *display)
@@ -3283,11 +3300,15 @@ static void skl_setup_wm_latency(struct intel_display *display)
 		display->wm.num_levels = 8;
 
 	if (DISPLAY_VER(display) >= 14)
-		mtl_read_wm_latency(display, display->wm.skl_latency);
+		mtl_read_wm_latency(display);
 	else
-		skl_read_wm_latency(display, display->wm.skl_latency);
+		skl_read_wm_latency(display);
 
-	intel_print_wm_latency(display, "Gen9 Plane", display->wm.skl_latency);
+	intel_print_wm_latency(display, "original", display->wm.skl_latency);
+
+	adjust_wm_latency(display);
+
+	intel_print_wm_latency(display, "adjusted", display->wm.skl_latency);
 }
 
 static struct intel_global_state *intel_dbuf_duplicate_state(struct intel_global_obj *obj)
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.h b/drivers/gpu/drm/i915/display/skl_watermark.h
index 62790816f030..6bc2ec9164bf 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.h
+++ b/drivers/gpu/drm/i915/display/skl_watermark.h
@@ -79,5 +79,8 @@ void intel_program_dpkgc_latency(struct intel_atomic_state *state);
 
 bool intel_dbuf_pmdemand_needs_update(struct intel_atomic_state *state);
 
+unsigned int skl_wm0_prefill_lines_worst(const struct intel_crtc_state *crtc_state);
+unsigned int skl_wm0_prefill_lines(const struct intel_crtc_state *crtc_state);
+
 #endif /* __SKL_WATERMARK_H__ */
 
diff --git a/drivers/gpu/drm/i915/display/vlv_clock.c b/drivers/gpu/drm/i915/display/vlv_clock.c
new file mode 100644
index 000000000000..1abdae453514
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/vlv_clock.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include <drm/drm_print.h>
+
+#include "intel_display_core.h"
+#include "intel_display_types.h"
+#include "vlv_clock.h"
+#include "vlv_sideband.h"
+
+/*
+ * FIXME: The caching of hpll_freq and czclk_freq relies on the first calls
+ * occurring at a time when they can actually be read. This appears to be the
+ * case, but is somewhat fragile. Make the initialization explicit at a point
+ * where they can be reliably read.
+ */
+
+/* returns HPLL frequency in kHz */
+int vlv_clock_get_hpll_vco(struct drm_device *drm)
+{
+	struct intel_display *display = to_intel_display(drm);
+	int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
+
+	if (!display->vlv_clock.hpll_freq) {
+		vlv_cck_get(drm);
+		/* Obtain SKU information */
+		hpll_freq = vlv_cck_read(drm, CCK_FUSE_REG) &
+			CCK_FUSE_HPLL_FREQ_MASK;
+		vlv_cck_put(drm);
+
+		display->vlv_clock.hpll_freq = vco_freq[hpll_freq] * 1000;
+
+		drm_dbg_kms(drm, "HPLL frequency: %d kHz\n", display->vlv_clock.hpll_freq);
+	}
+
+	return display->vlv_clock.hpll_freq;
+}
+
+static int vlv_clock_get_cck(struct drm_device *drm,
+			     const char *name, u32 reg, int ref_freq)
+{
+	u32 val;
+	int divider;
+
+	vlv_cck_get(drm);
+	val = vlv_cck_read(drm, reg);
+	vlv_cck_put(drm);
+
+	divider = val & CCK_FREQUENCY_VALUES;
+
+	drm_WARN(drm, (val & CCK_FREQUENCY_STATUS) !=
+		 (divider << CCK_FREQUENCY_STATUS_SHIFT),
+		 "%s change in progress\n", name);
+
+	return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1);
+}
+
+int vlv_clock_get_hrawclk(struct drm_device *drm)
+{
+	/* RAWCLK_FREQ_VLV register updated from power well code */
+	return vlv_clock_get_cck(drm, "hrawclk", CCK_DISPLAY_REF_CLOCK_CONTROL,
+				 vlv_clock_get_hpll_vco(drm));
+}
+
+int vlv_clock_get_czclk(struct drm_device *drm)
+{
+	struct intel_display *display = to_intel_display(drm);
+
+	if (!display->vlv_clock.czclk_freq) {
+		display->vlv_clock.czclk_freq = vlv_clock_get_cck(drm, "czclk", CCK_CZ_CLOCK_CONTROL,
+								  vlv_clock_get_hpll_vco(drm));
+		drm_dbg_kms(drm, "CZ clock rate: %d kHz\n", display->vlv_clock.czclk_freq);
+	}
+
+	return display->vlv_clock.czclk_freq;
+}
+
+int vlv_clock_get_cdclk(struct drm_device *drm)
+{
+	return vlv_clock_get_cck(drm, "cdclk", CCK_DISPLAY_CLOCK_CONTROL,
+				 vlv_clock_get_hpll_vco(drm));
+}
+
+int vlv_clock_get_gpll(struct drm_device *drm)
+{
+	return vlv_clock_get_cck(drm, "GPLL ref", CCK_GPLL_CLOCK_CONTROL,
+				 vlv_clock_get_czclk(drm));
+}
diff --git a/drivers/gpu/drm/i915/display/vlv_clock.h b/drivers/gpu/drm/i915/display/vlv_clock.h
new file mode 100644
index 000000000000..5742ed3c628d
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/vlv_clock.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __VLV_CLOCK_H__
+#define __VLV_CLOCK_H__
+
+struct drm_device;
+
+#ifdef I915
+int vlv_clock_get_hpll_vco(struct drm_device *drm);
+int vlv_clock_get_hrawclk(struct drm_device *drm);
+int vlv_clock_get_czclk(struct drm_device *drm);
+int vlv_clock_get_cdclk(struct drm_device *drm);
+int vlv_clock_get_gpll(struct drm_device *drm);
+#else
+static inline int vlv_clock_get_hpll_vco(struct drm_device *drm)
+{
+	return 0;
+}
+static inline int vlv_clock_get_hrawclk(struct drm_device *drm)
+{
+	return 0;
+}
+static inline int vlv_clock_get_czclk(struct drm_device *drm)
+{
+	return 0;
+}
+static inline int vlv_clock_get_cdclk(struct drm_device *drm)
+{
+	return 0;
+}
+static inline int vlv_clock_get_gpll(struct drm_device *drm)
+{
+	return 0;
+}
+#endif
+
+#endif /* __VLV_CLOCK_H__ */
diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c b/drivers/gpu/drm/i915/display/vlv_dsi.c
index c9a53fde79c4..444682995658 100644
--- a/drivers/gpu/drm/i915/display/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/display/vlv_dsi.c
@@ -34,7 +34,6 @@
 #include <drm/drm_probe_helper.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_backlight.h"
 #include "intel_connector.h"
@@ -42,6 +41,7 @@
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dsi.h"
 #include "intel_dsi_vbt.h"
 #include "intel_fifo_underrun.h"
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index 75f5b0e871ef..4542135b20d5 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -16,12 +16,13 @@
 #include "i915_gem_evict.h"
 #include "i915_gem_gtt.h"
 #include "i915_gem_ioctls.h"
-#include "i915_gem_object.h"
 #include "i915_gem_mman.h"
+#include "i915_gem_object.h"
+#include "i915_gem_ttm.h"
+#include "i915_jiffies.h"
 #include "i915_mm.h"
 #include "i915_trace.h"
 #include "i915_user_extensions.h"
-#include "i915_gem_ttm.h"
 #include "i915_vma.h"
 
 static inline bool
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 148034ef504d..8878539c10ed 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -802,6 +802,7 @@ static inline void __start_cpu_write(struct drm_i915_gem_object *obj)
 
 void i915_gem_fence_wait_priority(struct dma_fence *fence,
 				  const struct i915_sched_attr *attr);
+void i915_gem_fence_wait_priority_display(struct dma_fence *fence);
 
 int i915_gem_object_wait(struct drm_i915_gem_object *obj,
 			 unsigned int flags,
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index 3380151edfc1..e73b369c3347 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -24,6 +24,11 @@
 #include "intel_mchbar_regs.h"
 #include "intel_pci_config.h"
 
+struct intel_stolen_node {
+	struct drm_i915_private *i915;
+	struct drm_mm_node node;
+};
+
 /*
  * The BIOS typically reserves some of the system's memory for the exclusive
  * use of the integrated graphics. This memory is no longer available for
@@ -36,9 +41,9 @@
  * for is a boon.
  */
 
-int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *i915,
-					 struct drm_mm_node *node, u64 size,
-					 unsigned alignment, u64 start, u64 end)
+static int __i915_gem_stolen_insert_node_in_range(struct drm_i915_private *i915,
+						  struct drm_mm_node *node, u64 size,
+						  unsigned int alignment, u64 start, u64 end)
 {
 	int ret;
 
@@ -58,24 +63,43 @@ int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *i915,
 	return ret;
 }
 
-int i915_gem_stolen_insert_node(struct drm_i915_private *i915,
-				struct drm_mm_node *node, u64 size,
-				unsigned alignment)
+int i915_gem_stolen_insert_node_in_range(struct intel_stolen_node *node, u64 size,
+					 unsigned int alignment, u64 start, u64 end)
 {
-	return i915_gem_stolen_insert_node_in_range(i915, node,
-						    size, alignment,
-						    I915_GEM_STOLEN_BIAS,
-						    U64_MAX);
+	return __i915_gem_stolen_insert_node_in_range(node->i915, &node->node,
+						      size, alignment,
+						      start, end);
 }
 
-void i915_gem_stolen_remove_node(struct drm_i915_private *i915,
-				 struct drm_mm_node *node)
+static int __i915_gem_stolen_insert_node(struct drm_i915_private *i915,
+					 struct drm_mm_node *node, u64 size,
+					 unsigned int alignment)
+{
+	return __i915_gem_stolen_insert_node_in_range(i915, node,
+						      size, alignment,
+						      I915_GEM_STOLEN_BIAS,
+						      U64_MAX);
+}
+
+int i915_gem_stolen_insert_node(struct intel_stolen_node *node, u64 size,
+				unsigned int alignment)
+{
+	return __i915_gem_stolen_insert_node(node->i915, &node->node, size, alignment);
+}
+
+static void __i915_gem_stolen_remove_node(struct drm_i915_private *i915,
+					  struct drm_mm_node *node)
 {
 	mutex_lock(&i915->mm.stolen_lock);
 	drm_mm_remove_node(node);
 	mutex_unlock(&i915->mm.stolen_lock);
 }
 
+void i915_gem_stolen_remove_node(struct intel_stolen_node *node)
+{
+	__i915_gem_stolen_remove_node(node->i915, &node->node);
+}
+
 static bool valid_stolen_size(struct drm_i915_private *i915, struct resource *dsm)
 {
 	return (dsm->start != 0 || HAS_LMEMBAR_SMEM_STOLEN(i915)) && dsm->end > dsm->start;
@@ -683,7 +707,7 @@ i915_gem_object_release_stolen(struct drm_i915_gem_object *obj)
 	struct drm_mm_node *stolen = fetch_and_zero(&obj->stolen);
 
 	GEM_BUG_ON(!stolen);
-	i915_gem_stolen_remove_node(i915, stolen);
+	__i915_gem_stolen_remove_node(i915, stolen);
 	kfree(stolen);
 
 	i915_gem_object_release_memory_region(obj);
@@ -772,8 +796,8 @@ static int _i915_gem_object_stolen_init(struct intel_memory_region *mem,
 		ret = drm_mm_reserve_node(&i915->mm.stolen, stolen);
 		mutex_unlock(&i915->mm.stolen_lock);
 	} else {
-		ret = i915_gem_stolen_insert_node(i915, stolen, size,
-						  mem->min_page_size);
+		ret = __i915_gem_stolen_insert_node(i915, stolen, size,
+						    mem->min_page_size);
 	}
 	if (ret)
 		goto err_free;
@@ -785,7 +809,7 @@ static int _i915_gem_object_stolen_init(struct intel_memory_region *mem,
 	return 0;
 
 err_remove:
-	i915_gem_stolen_remove_node(i915, stolen);
+	__i915_gem_stolen_remove_node(i915, stolen);
 err_free:
 	kfree(stolen);
 	return ret;
@@ -1000,38 +1024,64 @@ bool i915_gem_object_is_stolen(const struct drm_i915_gem_object *obj)
 	return obj->ops == &i915_gem_object_stolen_ops;
 }
 
-bool i915_gem_stolen_initialized(const struct drm_i915_private *i915)
+bool i915_gem_stolen_initialized(struct drm_device *drm)
 {
+	struct drm_i915_private *i915 = to_i915(drm);
+
 	return drm_mm_initialized(&i915->mm.stolen);
 }
 
-u64 i915_gem_stolen_area_address(const struct drm_i915_private *i915)
+u64 i915_gem_stolen_area_address(struct drm_device *drm)
 {
+	struct drm_i915_private *i915 = to_i915(drm);
+
 	return i915->dsm.stolen.start;
 }
 
-u64 i915_gem_stolen_area_size(const struct drm_i915_private *i915)
+u64 i915_gem_stolen_area_size(struct drm_device *drm)
 {
+	struct drm_i915_private *i915 = to_i915(drm);
+
 	return resource_size(&i915->dsm.stolen);
 }
 
-u64 i915_gem_stolen_node_address(const struct drm_i915_private *i915,
-				 const struct drm_mm_node *node)
+u64 i915_gem_stolen_node_address(const struct intel_stolen_node *node)
 {
+	struct drm_i915_private *i915 = node->i915;
+
 	return i915->dsm.stolen.start + i915_gem_stolen_node_offset(node);
 }
 
-bool i915_gem_stolen_node_allocated(const struct drm_mm_node *node)
+bool i915_gem_stolen_node_allocated(const struct intel_stolen_node *node)
 {
-	return drm_mm_node_allocated(node);
+	return drm_mm_node_allocated(&node->node);
 }
 
-u64 i915_gem_stolen_node_offset(const struct drm_mm_node *node)
+u64 i915_gem_stolen_node_offset(const struct intel_stolen_node *node)
 {
-	return node->start;
+	return node->node.start;
 }
 
-u64 i915_gem_stolen_node_size(const struct drm_mm_node *node)
+u64 i915_gem_stolen_node_size(const struct intel_stolen_node *node)
 {
-	return node->size;
+	return node->node.size;
+}
+
+struct intel_stolen_node *i915_gem_stolen_node_alloc(struct drm_device *drm)
+{
+	struct drm_i915_private *i915 = to_i915(drm);
+	struct intel_stolen_node *node;
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return NULL;
+
+	node->i915 = i915;
+
+	return node;
+}
+
+void i915_gem_stolen_node_free(const struct intel_stolen_node *node)
+{
+	kfree(node);
 }
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.h b/drivers/gpu/drm/i915/gem/i915_gem_stolen.h
index dfe0db8bb1b9..7b0386002ed4 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.h
@@ -8,21 +8,17 @@
 
 #include <linux/types.h>
 
-struct drm_i915_private;
-struct drm_mm_node;
+struct drm_device;
 struct drm_i915_gem_object;
+struct drm_i915_private;
+struct intel_stolen_node;
 
-#define i915_stolen_fb drm_mm_node
-
-int i915_gem_stolen_insert_node(struct drm_i915_private *i915,
-				struct drm_mm_node *node, u64 size,
+int i915_gem_stolen_insert_node(struct intel_stolen_node *node, u64 size,
 				unsigned alignment);
-int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *i915,
-					 struct drm_mm_node *node, u64 size,
+int i915_gem_stolen_insert_node_in_range(struct intel_stolen_node *node, u64 size,
 					 unsigned alignment, u64 start,
 					 u64 end);
-void i915_gem_stolen_remove_node(struct drm_i915_private *i915,
-				 struct drm_mm_node *node);
+void i915_gem_stolen_remove_node(struct intel_stolen_node *node);
 struct intel_memory_region *
 i915_gem_stolen_smem_setup(struct drm_i915_private *i915, u16 type,
 			   u16 instance);
@@ -38,15 +34,17 @@ bool i915_gem_object_is_stolen(const struct drm_i915_gem_object *obj);
 
 #define I915_GEM_STOLEN_BIAS SZ_128K
 
-bool i915_gem_stolen_initialized(const struct drm_i915_private *i915);
-u64 i915_gem_stolen_area_address(const struct drm_i915_private *i915);
-u64 i915_gem_stolen_area_size(const struct drm_i915_private *i915);
+bool i915_gem_stolen_initialized(struct drm_device *drm);
+u64 i915_gem_stolen_area_address(struct drm_device *drm);
+u64 i915_gem_stolen_area_size(struct drm_device *drm);
 
-u64 i915_gem_stolen_node_address(const struct drm_i915_private *i915,
-				 const struct drm_mm_node *node);
+u64 i915_gem_stolen_node_address(const struct intel_stolen_node *node);
 
-bool i915_gem_stolen_node_allocated(const struct drm_mm_node *node);
-u64 i915_gem_stolen_node_offset(const struct drm_mm_node *node);
-u64 i915_gem_stolen_node_size(const struct drm_mm_node *node);
+bool i915_gem_stolen_node_allocated(const struct intel_stolen_node *node);
+u64 i915_gem_stolen_node_offset(const struct intel_stolen_node *node);
+u64 i915_gem_stolen_node_size(const struct intel_stolen_node *node);
+
+struct intel_stolen_node *i915_gem_stolen_node_alloc(struct drm_device *drm);
+void i915_gem_stolen_node_free(const struct intel_stolen_node *node);
 
 #endif /* __I915_GEM_STOLEN_H__ */
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_tiling.c b/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
index 5a296ba3758a..567b97d28d30 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
@@ -145,8 +145,9 @@ i915_tiling_ok(struct drm_i915_gem_object *obj,
 			return false;
 	}
 
-	if (GRAPHICS_VER(i915) == 2 ||
-	    (tiling == I915_TILING_Y && HAS_128_BYTE_Y_TILING(i915)))
+	if (tiling == I915_TILING_Y && HAS_128_BYTE_Y_TILING(i915))
+		tile_width = 128;
+	else if (GRAPHICS_VER(i915) == 2)
 		tile_width = 128;
 	else
 		tile_width = 512;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 57bb111d65da..d119e54e5be1 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -10,6 +10,7 @@
 #include <drm/drm_buddy.h>
 
 #include "i915_drv.h"
+#include "i915_jiffies.h"
 #include "i915_ttm_buddy_manager.h"
 #include "intel_memory_region.h"
 #include "intel_region_ttm.h"
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
index 54829801d3f7..2893df65c359 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
@@ -138,6 +138,13 @@ void i915_gem_fence_wait_priority(struct dma_fence *fence,
 	local_bh_enable(); /* kick the tasklets if queues were reprioritised */
 }
 
+void i915_gem_fence_wait_priority_display(struct dma_fence *fence)
+{
+	struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY };
+
+	i915_gem_fence_wait_priority(fence, &attr);
+}
+
 int
 i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
 			      unsigned int flags,
diff --git a/drivers/gpu/drm/i915/gt/gen2_engine_cs.c b/drivers/gpu/drm/i915/gt/gen2_engine_cs.c
index 8116fd5987e2..8c01fb6d4e7b 100644
--- a/drivers/gpu/drm/i915/gt/gen2_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/gen2_engine_cs.c
@@ -292,15 +292,15 @@ int gen4_emit_bb_start(struct i915_request *rq,
 
 void gen2_irq_enable(struct intel_engine_cs *engine)
 {
-	engine->i915->irq_mask &= ~engine->irq_enable_mask;
-	intel_uncore_write(engine->uncore, GEN2_IMR, engine->i915->irq_mask);
+	engine->i915->gen2_imr_mask &= ~engine->irq_enable_mask;
+	intel_uncore_write(engine->uncore, GEN2_IMR, engine->i915->gen2_imr_mask);
 	intel_uncore_posting_read_fw(engine->uncore, GEN2_IMR);
 }
 
 void gen2_irq_disable(struct intel_engine_cs *engine)
 {
-	engine->i915->irq_mask |= engine->irq_enable_mask;
-	intel_uncore_write(engine->uncore, GEN2_IMR, engine->i915->irq_mask);
+	engine->i915->gen2_imr_mask |= engine->irq_enable_mask;
+	intel_uncore_write(engine->uncore, GEN2_IMR, engine->i915->gen2_imr_mask);
 }
 
 void gen5_irq_enable(struct intel_engine_cs *engine)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
index 8d4bb95f8424..dcd3a3047aa4 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_jiffies.h"
 #include "i915_request.h"
 
 #include "intel_context.h"
diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c
index bf38cc5fe872..932f9f1b06b2 100644
--- a/drivers/gpu/drm/i915/gt/intel_rc6.c
+++ b/drivers/gpu/drm/i915/gt/intel_rc6.c
@@ -6,6 +6,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/string_helpers.h>
 
+#include "display/vlv_clock.h"
 #include "gem/i915_gem_region.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
@@ -802,7 +803,7 @@ u64 intel_rc6_residency_ns(struct intel_rc6 *rc6, enum intel_rc6_res_type id)
 	/* On VLV and CHV, residency time is in CZ units rather than 1.28us */
 	if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
 		mul = 1000000;
-		div = i915->czclk_freq;
+		div = vlv_clock_get_czclk(&i915->drm);
 		overflow_hw = BIT_ULL(40);
 		time_hw = vlv_residency_raw(uncore, reg);
 	} else {
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index 4da94098bd3e..b01c837ab646 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -7,8 +7,8 @@
 
 #include <drm/intel/i915_drm.h>
 
-#include "display/intel_display.h"
 #include "display/intel_display_rps.h"
+#include "display/vlv_clock.h"
 #include "soc/intel_dram.h"
 
 #include "i915_drv.h"
@@ -1690,10 +1690,7 @@ static void vlv_init_gpll_ref_freq(struct intel_rps *rps)
 {
 	struct drm_i915_private *i915 = rps_to_i915(rps);
 
-	rps->gpll_ref_freq =
-		vlv_get_cck_clock(&i915->drm, "GPLL ref",
-				  CCK_GPLL_CLOCK_CONTROL,
-				  i915->czclk_freq);
+	rps->gpll_ref_freq = vlv_clock_get_gpll(&i915->drm);
 
 	drm_dbg(&i915->drm, "GPLL reference freq: %d kHz\n",
 		rps->gpll_ref_freq);
@@ -1703,13 +1700,13 @@ static void vlv_rps_init(struct intel_rps *rps)
 {
 	struct drm_i915_private *i915 = rps_to_i915(rps);
 
+	vlv_init_gpll_ref_freq(rps);
+
 	vlv_iosf_sb_get(&i915->drm,
 			BIT(VLV_IOSF_SB_PUNIT) |
 			BIT(VLV_IOSF_SB_NC) |
 			BIT(VLV_IOSF_SB_CCK));
 
-	vlv_init_gpll_ref_freq(rps);
-
 	rps->max_freq = vlv_rps_max_freq(rps);
 	rps->rp0_freq = rps->max_freq;
 	drm_dbg(&i915->drm, "max GPU freq: %d MHz (%u)\n",
@@ -1737,13 +1734,13 @@ static void chv_rps_init(struct intel_rps *rps)
 {
 	struct drm_i915_private *i915 = rps_to_i915(rps);
 
+	vlv_init_gpll_ref_freq(rps);
+
 	vlv_iosf_sb_get(&i915->drm,
 			BIT(VLV_IOSF_SB_PUNIT) |
 			BIT(VLV_IOSF_SB_NC) |
 			BIT(VLV_IOSF_SB_CCK));
 
-	vlv_init_gpll_ref_freq(rps);
-
 	rps->max_freq = chv_rps_max_freq(rps);
 	rps->rp0_freq = rps->max_freq;
 	drm_dbg(&i915->drm, "max GPU freq: %d MHz (%u)\n",
@@ -1780,6 +1777,7 @@ static void vlv_c0_read(struct intel_uncore *uncore, struct intel_rps_ei *ei)
 
 static u32 vlv_wa_c0_ei(struct intel_rps *rps, u32 pm_iir)
 {
+	struct drm_i915_private *i915 = rps_to_i915(rps);
 	struct intel_uncore *uncore = rps_to_uncore(rps);
 	const struct intel_rps_ei *prev = &rps->ei;
 	struct intel_rps_ei now;
@@ -1796,7 +1794,7 @@ static u32 vlv_wa_c0_ei(struct intel_rps *rps, u32 pm_iir)
 
 		time = ktime_us_delta(now.ktime, prev->ktime);
 
-		time *= rps_to_i915(rps)->czclk_freq;
+		time *= vlv_clock_get_czclk(&i915->drm);
 
 		/* Workload can be split between render + media,
 		 * e.g. SwapBuffers being blitted in X after being rendered in
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 7d486dfa2fc1..ece88c612e27 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -5,6 +5,7 @@
 
 #include "i915_drv.h"
 #include "i915_reg.h"
+#include "i915_mmio_range.h"
 #include "intel_context.h"
 #include "intel_engine_pm.h"
 #include "intel_engine_regs.h"
@@ -2923,7 +2924,7 @@ void intel_engine_apply_workarounds(struct intel_engine_cs *engine)
 	wa_list_apply(&engine->wa_list);
 }
 
-static const struct i915_range mcr_ranges_gen8[] = {
+static const struct i915_mmio_range mcr_ranges_gen8[] = {
 	{ .start = 0x5500, .end = 0x55ff },
 	{ .start = 0x7000, .end = 0x7fff },
 	{ .start = 0x9400, .end = 0x97ff },
@@ -2932,7 +2933,7 @@ static const struct i915_range mcr_ranges_gen8[] = {
 	{},
 };
 
-static const struct i915_range mcr_ranges_gen12[] = {
+static const struct i915_mmio_range mcr_ranges_gen12[] = {
 	{ .start =  0x8150, .end =  0x815f },
 	{ .start =  0x9520, .end =  0x955f },
 	{ .start =  0xb100, .end =  0xb3ff },
@@ -2941,7 +2942,7 @@ static const struct i915_range mcr_ranges_gen12[] = {
 	{},
 };
 
-static const struct i915_range mcr_ranges_xehp[] = {
+static const struct i915_mmio_range mcr_ranges_xehp[] = {
 	{ .start =  0x4000, .end =  0x4aff },
 	{ .start =  0x5200, .end =  0x52ff },
 	{ .start =  0x5400, .end =  0x7fff },
@@ -2960,7 +2961,7 @@ static const struct i915_range mcr_ranges_xehp[] = {
 
 static bool mcr_range(struct drm_i915_private *i915, u32 offset)
 {
-	const struct i915_range *mcr_ranges;
+	const struct i915_mmio_range *mcr_ranges;
 	int i;
 
 	if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55))
diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c
index 0454eb1814bb..376f201a7650 100644
--- a/drivers/gpu/drm/i915/gt/selftest_execlists.c
+++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c
@@ -11,6 +11,7 @@
 #include "gt/intel_reset.h"
 #include "gt/selftest_engine_heartbeat.h"
 
+#include "i915_jiffies.h"
 #include "i915_selftest.h"
 #include "selftests/i915_random.h"
 #include "selftests/igt_flush_test.h"
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 69830a5c49d3..c43b47687838 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1279,20 +1279,15 @@ static long intel_vgpu_ioctl(struct vfio_device *vfio_dev, unsigned int cmd,
 		}
 
 		if ((info.flags & VFIO_REGION_INFO_FLAG_CAPS) && sparse) {
-			switch (cap_type_id) {
-			case VFIO_REGION_INFO_CAP_SPARSE_MMAP:
+			ret = -EINVAL;
+			if (cap_type_id == VFIO_REGION_INFO_CAP_SPARSE_MMAP)
 				ret = vfio_info_add_capability(&caps,
 					&sparse->header,
 					struct_size(sparse, areas,
 						    sparse->nr_areas));
-				if (ret) {
-					kfree(sparse);
-					return ret;
-				}
-				break;
-			default:
+			if (ret) {
 				kfree(sparse);
-				return -EINVAL;
+				return ret;
 			}
 		}
 
@@ -1361,21 +1356,27 @@ static long intel_vgpu_ioctl(struct vfio_device *vfio_dev, unsigned int cmd,
 		if (copy_from_user(&hdr, (void __user *)arg, minsz))
 			return -EFAULT;
 
+		if (!is_power_of_2(hdr.flags & VFIO_IRQ_SET_DATA_TYPE_MASK) ||
+		    !is_power_of_2(hdr.flags & VFIO_IRQ_SET_ACTION_TYPE_MASK))
+			return -EINVAL;
+
 		if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
 			int max = intel_vgpu_get_irq_count(vgpu, hdr.index);
 
+			if (!hdr.count)
+				return -EINVAL;
+
 			ret = vfio_set_irqs_validate_and_prepare(&hdr, max,
 						VFIO_PCI_NUM_IRQS, &data_size);
 			if (ret) {
-				gvt_vgpu_err("intel:vfio_set_irqs_validate_and_prepare failed\n");
-				return -EINVAL;
-			}
-			if (data_size) {
-				data = memdup_user((void __user *)(arg + minsz),
-						   data_size);
-				if (IS_ERR(data))
-					return PTR_ERR(data);
+				gvt_vgpu_err("vfio_set_irqs_validate_and_prepare failed\n");
+				return ret;
 			}
+
+			data = memdup_user((void __user *)(arg + minsz),
+					   data_size);
+			if (IS_ERR(data))
+				return PTR_ERR(data);
 		}
 
 		ret = intel_vgpu_set_irqs(vgpu, hdr.flags, hdr.index,
diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c
index da1135fa7cda..db5cd65100fe 100644
--- a/drivers/gpu/drm/i915/gvt/mmio.c
+++ b/drivers/gpu/drm/i915/gvt/mmio.c
@@ -49,7 +49,7 @@
  * @gpa: guest physical address
  *
  * Returns:
- * Zero on success, negative error code if failed
+ * The MMIO offset of the given GPA
  */
 int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa)
 {
@@ -58,7 +58,7 @@ int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa)
 }
 
 #define reg_is_mmio(gvt, reg)  \
-	(reg >= 0 && reg < gvt->device_info.mmio_size)
+	(reg < gvt->device_info.mmio_size)
 
 #define reg_is_gtt(gvt, reg)   \
 	(reg >= gvt->device_info.gtt_start_offset \
diff --git a/drivers/gpu/drm/i915/i915_config.c b/drivers/gpu/drm/i915/i915_config.c
index 24e5bb8a670e..3cb615ffa96d 100644
--- a/drivers/gpu/drm/i915/i915_config.c
+++ b/drivers/gpu/drm/i915/i915_config.c
@@ -6,7 +6,7 @@
 #include <linux/kernel.h>
 
 #include "i915_config.h"
-#include "i915_utils.h"
+#include "i915_jiffies.h"
 
 unsigned long
 i915_fence_context_timeout(const struct drm_i915_private *i915, u64 context)
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 89be8da79d3b..c97b76771917 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -46,6 +46,8 @@
 #include <drm/drm_ioctl.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_probe_helper.h>
+#include <drm/intel/display_member.h>
+#include <drm/intel/display_parent_interface.h>
 
 #include "display/i9xx_display_sr.h"
 #include "display/intel_bw.h"
@@ -737,6 +739,18 @@ static void i915_welcome_messages(struct drm_i915_private *dev_priv)
 			 "DRM_I915_DEBUG_RUNTIME_PM enabled\n");
 }
 
+static const struct intel_display_parent_interface parent = {
+	.rpm = &i915_display_rpm_interface,
+};
+
+const struct intel_display_parent_interface *i915_driver_parent_interface(void)
+{
+	return &parent;
+}
+
+/* Ensure drm and display members are placed properly. */
+INTEL_DISPLAY_MEMBER_STATIC_ASSERT(struct drm_i915_private, drm, display);
+
 static struct drm_i915_private *
 i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
@@ -758,7 +772,7 @@ i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Set up device info and initial runtime info. */
 	intel_device_info_driver_create(i915, pdev->device, match_info);
 
-	display = intel_display_device_probe(pdev);
+	display = intel_display_device_probe(pdev, &parent);
 	if (IS_ERR(display))
 		return ERR_CAST(display);
 
@@ -1053,7 +1067,6 @@ static int i915_drm_suspend(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_display *display = dev_priv->display;
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	pci_power_t opregion_target_state;
 
 	disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
@@ -1067,8 +1080,6 @@ static int i915_drm_suspend(struct drm_device *dev)
 		intel_display_driver_disable_user_access(display);
 	}
 
-	pci_save_state(pdev);
-
 	intel_display_driver_suspend(display);
 
 	intel_irq_suspend(dev_priv);
@@ -1103,7 +1114,6 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_display *display = dev_priv->display;
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
 	struct intel_gt *gt;
 	int ret, i;
@@ -1124,11 +1134,21 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
 	if (ret) {
 		drm_err(&dev_priv->drm, "Suspend complete failed: %d\n", ret);
 		intel_display_power_resume_early(display);
-
-		goto out;
 	}
 
-	pci_disable_device(pdev);
+	enable_rpm_wakeref_asserts(rpm);
+
+	if (!dev_priv->uncore.user_forcewake_count)
+		intel_runtime_pm_driver_release(rpm);
+
+	return ret;
+}
+
+static int i915_drm_suspend_noirq(struct drm_device *dev, bool hibernation)
+{
+	struct drm_i915_private *dev_priv = to_i915(dev);
+	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+
 	/*
 	 * During hibernation on some platforms the BIOS may try to access
 	 * the device even though it's already in D3 and hang the machine. So
@@ -1140,21 +1160,20 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
 	 * Lenovo Thinkpad X301, X61s, X60, T60, X41
 	 * Fujitsu FSC S7110
 	 * Acer Aspire 1830T
+	 *
+	 * pci_save_state() prevents drivers/pci from
+	 * automagically putting the device into D3.
 	 */
-	if (!(hibernation && GRAPHICS_VER(dev_priv) < 6))
-		pci_set_power_state(pdev, PCI_D3hot);
+	if (hibernation && GRAPHICS_VER(dev_priv) < 6)
+		pci_save_state(pdev);
 
-out:
-	enable_rpm_wakeref_asserts(rpm);
-	if (!dev_priv->uncore.user_forcewake_count)
-		intel_runtime_pm_driver_release(rpm);
-
-	return ret;
+	return 0;
 }
 
 int i915_driver_suspend_switcheroo(struct drm_i915_private *i915,
 				   pm_message_t state)
 {
+	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
 	int error;
 
 	if (drm_WARN_ON_ONCE(&i915->drm, state.event != PM_EVENT_SUSPEND &&
@@ -1168,7 +1187,14 @@ int i915_driver_suspend_switcheroo(struct drm_i915_private *i915,
 	if (error)
 		return error;
 
-	return i915_drm_suspend_late(&i915->drm, false);
+	error = i915_drm_suspend_late(&i915->drm, false);
+	if (error)
+		return error;
+
+	pci_save_state(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
 }
 
 static int i915_drm_resume(struct drm_device *dev)
@@ -1260,7 +1286,6 @@ static int i915_drm_resume_early(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_display *display = dev_priv->display;
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	struct intel_gt *gt;
 	int ret, i;
 
@@ -1274,41 +1299,6 @@ static int i915_drm_resume_early(struct drm_device *dev)
 	 * similar so that power domains can be employed.
 	 */
 
-	/*
-	 * Note that we need to set the power state explicitly, since we
-	 * powered off the device during freeze and the PCI core won't power
-	 * it back up for us during thaw. Powering off the device during
-	 * freeze is not a hard requirement though, and during the
-	 * suspend/resume phases the PCI core makes sure we get here with the
-	 * device powered on. So in case we change our freeze logic and keep
-	 * the device powered we can also remove the following set power state
-	 * call.
-	 */
-	ret = pci_set_power_state(pdev, PCI_D0);
-	if (ret) {
-		drm_err(&dev_priv->drm,
-			"failed to set PCI D0 power state (%d)\n", ret);
-		return ret;
-	}
-
-	/*
-	 * Note that pci_enable_device() first enables any parent bridge
-	 * device and only then sets the power state for this device. The
-	 * bridge enabling is a nop though, since bridge devices are resumed
-	 * first. The order of enabling power and enabling the device is
-	 * imposed by the PCI core as described above, so here we preserve the
-	 * same order for the freeze/thaw phases.
-	 *
-	 * TODO: eventually we should remove pci_disable_device() /
-	 * pci_enable_enable_device() from suspend/resume. Due to how they
-	 * depend on the device enable refcount we can't anyway depend on them
-	 * disabling/enabling the device.
-	 */
-	if (pci_enable_device(pdev))
-		return -EIO;
-
-	pci_set_master(pdev);
-
 	disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
 
 	ret = vlv_resume_prepare(dev_priv, false);
@@ -1328,11 +1318,18 @@ static int i915_drm_resume_early(struct drm_device *dev)
 
 int i915_driver_resume_switcheroo(struct drm_i915_private *i915)
 {
+	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
 	int ret;
 
 	if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
+	ret = pci_set_power_state(pdev, PCI_D0);
+	if (ret)
+		return ret;
+
+	pci_restore_state(pdev);
+
 	ret = i915_drm_resume_early(&i915->drm);
 	if (ret)
 		return ret;
@@ -1389,6 +1386,16 @@ static int i915_pm_suspend_late(struct device *kdev)
 	return i915_drm_suspend_late(&i915->drm, false);
 }
 
+static int i915_pm_suspend_noirq(struct device *kdev)
+{
+	struct drm_i915_private *i915 = kdev_to_i915(kdev);
+
+	if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	return i915_drm_suspend_noirq(&i915->drm, false);
+}
+
 static int i915_pm_poweroff_late(struct device *kdev)
 {
 	struct drm_i915_private *i915 = kdev_to_i915(kdev);
@@ -1399,6 +1406,16 @@ static int i915_pm_poweroff_late(struct device *kdev)
 	return i915_drm_suspend_late(&i915->drm, true);
 }
 
+static int i915_pm_poweroff_noirq(struct device *kdev)
+{
+	struct drm_i915_private *i915 = kdev_to_i915(kdev);
+
+	if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	return i915_drm_suspend_noirq(&i915->drm, true);
+}
+
 static int i915_pm_resume_early(struct device *kdev)
 {
 	struct drm_i915_private *i915 = kdev_to_i915(kdev);
@@ -1664,24 +1681,25 @@ const struct dev_pm_ops i915_pm_ops = {
 	.prepare = i915_pm_prepare,
 	.suspend = i915_pm_suspend,
 	.suspend_late = i915_pm_suspend_late,
+	.suspend_noirq = i915_pm_suspend_noirq,
 	.resume_early = i915_pm_resume_early,
 	.resume = i915_pm_resume,
 	.complete = i915_pm_complete,
 
 	/*
 	 * S4 event handlers
-	 * @freeze, @freeze_late    : called (1) before creating the
-	 *                            hibernation image [PMSG_FREEZE] and
-	 *                            (2) after rebooting, before restoring
-	 *                            the image [PMSG_QUIESCE]
-	 * @thaw, @thaw_early       : called (1) after creating the hibernation
-	 *                            image, before writing it [PMSG_THAW]
-	 *                            and (2) after failing to create or
-	 *                            restore the image [PMSG_RECOVER]
-	 * @poweroff, @poweroff_late: called after writing the hibernation
-	 *                            image, before rebooting [PMSG_HIBERNATE]
-	 * @restore, @restore_early : called after rebooting and restoring the
-	 *                            hibernation image [PMSG_RESTORE]
+	 * @freeze*   : called (1) before creating the
+	 *              hibernation image [PMSG_FREEZE] and
+	 *              (2) after rebooting, before restoring
+	 *              the image [PMSG_QUIESCE]
+	 * @thaw*     : called (1) after creating the hibernation
+	 *              image, before writing it [PMSG_THAW]
+	 *              and (2) after failing to create or
+	 *              restore the image [PMSG_RECOVER]
+	 * @poweroff* : called after writing the hibernation
+	 *              image, before rebooting [PMSG_HIBERNATE]
+	 * @restore*  : called after rebooting and restoring the
+	 *              hibernation image [PMSG_RESTORE]
 	 */
 	.freeze = i915_pm_freeze,
 	.freeze_late = i915_pm_freeze_late,
@@ -1689,6 +1707,7 @@ const struct dev_pm_ops i915_pm_ops = {
 	.thaw = i915_pm_thaw,
 	.poweroff = i915_pm_suspend,
 	.poweroff_late = i915_pm_poweroff_late,
+	.poweroff_noirq = i915_pm_poweroff_noirq,
 	.restore_early = i915_pm_restore_early,
 	.restore = i915_pm_restore,
 
diff --git a/drivers/gpu/drm/i915/i915_driver.h b/drivers/gpu/drm/i915/i915_driver.h
index 1e95ecb2a163..9551519ab429 100644
--- a/drivers/gpu/drm/i915/i915_driver.h
+++ b/drivers/gpu/drm/i915/i915_driver.h
@@ -12,6 +12,7 @@ struct pci_dev;
 struct pci_device_id;
 struct drm_i915_private;
 struct drm_printer;
+struct intel_display_parent_interface;
 
 #define DRIVER_NAME		"i915"
 #define DRIVER_DESC		"Intel Graphics"
@@ -24,6 +25,7 @@ void i915_driver_shutdown(struct drm_i915_private *i915);
 
 int i915_driver_resume_switcheroo(struct drm_i915_private *i915);
 int i915_driver_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);
+const struct intel_display_parent_interface *i915_driver_parent_interface(void);
 
 void
 i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6a768aad8edd..95f9ddf22ce4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -174,6 +174,7 @@ struct i915_selftest_stash {
 struct drm_i915_private {
 	struct drm_device drm;
 
+	/* display device data, must be placed after drm device member */
 	struct intel_display *display;
 
 	/* FIXME: Device release actions should all be moved to drmm_ */
@@ -234,14 +235,11 @@ struct drm_i915_private {
 	/* Sideband mailbox protection */
 	struct mutex sb_lock;
 
-	/** Cached value of IMR to avoid reads in updating the bitfield */
-	u32 irq_mask;
+	/* Cached value of gen 2-4 IMR to avoid reads in updating the bitfield */
+	u32 gen2_imr_mask;
 
 	bool preserve_bios_swizzle;
 
-	unsigned int hpll_freq;
-	unsigned int czclk_freq;
-
 	/**
 	 * wq - Driver workqueue for GEM.
 	 *
@@ -490,16 +488,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define IS_ALDERLAKE_P(i915) IS_PLATFORM(i915, INTEL_ALDERLAKE_P)
 #define IS_DG2(i915)	IS_PLATFORM(i915, INTEL_DG2)
 #define IS_METEORLAKE(i915) IS_PLATFORM(i915, INTEL_METEORLAKE)
-/*
- * Display code shared by i915 and Xe relies on macros like IS_LUNARLAKE,
- * so we need to define these even on platforms that the i915 base driver
- * doesn't support.  Ensure the parameter is used in the definition to
- * avoid 'unused variable' warnings when compiling the shared display code
- * for i915.
- */
-#define IS_LUNARLAKE(i915) (0 && i915)
-#define IS_BATTLEMAGE(i915)  (0 && i915)
-#define IS_PANTHERLAKE(i915) (0 && i915)
 
 #define IS_ARROWLAKE_H(i915) \
 	IS_SUBPLATFORM(i915, INTEL_METEORLAKE, INTEL_SUBPLATFORM_ARL_H)
@@ -604,8 +592,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
  * rows, which changed the alignment requirements and fence programming.
  */
-#define HAS_128_BYTE_Y_TILING(i915) (GRAPHICS_VER(i915) != 2 && \
-					 !(IS_I915G(i915) || IS_I915GM(i915)))
+#define HAS_128_BYTE_Y_TILING(i915) (!IS_I915G(i915) && !IS_I915GM(i915))
 
 #define HAS_RC6(i915)		 (INTEL_INFO(i915)->has_rc6)
 #define HAS_RC6p(i915)		 (INTEL_INFO(i915)->has_rc6p)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 8d5da222a187..e0a0bd687f1b 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -33,12 +33,10 @@
 
 #include <drm/drm_drv.h>
 
-#include "display/intel_display_core.h"
 #include "display/intel_display_irq.h"
 #include "display/intel_hotplug.h"
 #include "display/intel_hotplug_irq.h"
 #include "display/intel_lpe_audio.h"
-#include "display/intel_psr_regs.h"
 
 #include "gt/intel_breadcrumbs.h"
 #include "gt/intel_gt.h"
@@ -415,7 +413,7 @@ static irqreturn_t ilk_irq_handler(int irq, void *arg)
 	struct drm_i915_private *i915 = arg;
 	struct intel_display *display = i915->display;
 	void __iomem * const regs = intel_uncore_regs(&i915->uncore);
-	u32 de_iir, gt_iir, de_ier, sde_ier = 0;
+	u32 gt_iir, de_ier = 0, sde_ier = 0;
 	irqreturn_t ret = IRQ_NONE;
 
 	if (unlikely(!intel_irqs_enabled(i915)))
@@ -424,19 +422,8 @@ static irqreturn_t ilk_irq_handler(int irq, void *arg)
 	/* IRQs are synced during runtime_suspend, we don't require a wakeref */
 	disable_rpm_wakeref_asserts(&i915->runtime_pm);
 
-	/* disable master interrupt before clearing iir  */
-	de_ier = raw_reg_read(regs, DEIER);
-	raw_reg_write(regs, DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL);
-
-	/* Disable south interrupts. We'll only write to SDEIIR once, so further
-	 * interrupts will will be stored on its back queue, and then we'll be
-	 * able to process them after we restore SDEIER (as soon as we restore
-	 * it, we'll get an interrupt if SDEIIR still has something to process
-	 * due to its back queue). */
-	if (!HAS_PCH_NOP(display)) {
-		sde_ier = raw_reg_read(regs, SDEIER);
-		raw_reg_write(regs, SDEIER, 0);
-	}
+	/* Disable master and south interrupts */
+	ilk_display_irq_master_disable(display, &de_ier, &sde_ier);
 
 	/* Find, clear, then process each source of interrupt */
 
@@ -450,15 +437,8 @@ static irqreturn_t ilk_irq_handler(int irq, void *arg)
 		ret = IRQ_HANDLED;
 	}
 
-	de_iir = raw_reg_read(regs, DEIIR);
-	if (de_iir) {
-		raw_reg_write(regs, DEIIR, de_iir);
-		if (DISPLAY_VER(display) >= 7)
-			ivb_display_irq_handler(display, de_iir);
-		else
-			ilk_display_irq_handler(display, de_iir);
+	if (ilk_display_irq_handler(display))
 		ret = IRQ_HANDLED;
-	}
 
 	if (GRAPHICS_VER(i915) >= 6) {
 		u32 pm_iir = raw_reg_read(regs, GEN6_PMIIR);
@@ -469,9 +449,8 @@ static irqreturn_t ilk_irq_handler(int irq, void *arg)
 		}
 	}
 
-	raw_reg_write(regs, DEIER, de_ier);
-	if (sde_ier)
-		raw_reg_write(regs, SDEIER, sde_ier);
+	/* Re-enable master and south interrupts */
+	ilk_display_irq_master_enable(display, de_ier, sde_ier);
 
 	pmu_irq_stats(i915, ret);
 
@@ -656,22 +635,10 @@ static irqreturn_t dg1_irq_handler(int irq, void *arg)
 static void ilk_irq_reset(struct drm_i915_private *dev_priv)
 {
 	struct intel_display *display = dev_priv->display;
-	struct intel_uncore *uncore = &dev_priv->uncore;
-
-	gen2_irq_reset(uncore, DE_IRQ_REGS);
-	dev_priv->irq_mask = ~0u;
-
-	if (GRAPHICS_VER(dev_priv) == 7)
-		intel_uncore_write(uncore, GEN7_ERR_INT, 0xffffffff);
-
-	if (IS_HASWELL(dev_priv)) {
-		intel_uncore_write(uncore, EDP_PSR_IMR, 0xffffffff);
-		intel_uncore_write(uncore, EDP_PSR_IIR, 0xffffffff);
-	}
 
+	/* The master interrupt enable is in DEIER, reset display irq first */
+	ilk_display_irq_reset(display);
 	gen5_gt_irq_reset(to_gt(dev_priv));
-
-	ibx_display_irq_reset(display);
 }
 
 static void valleyview_irq_reset(struct drm_i915_private *dev_priv)
@@ -826,9 +793,10 @@ static void cherryview_irq_postinstall(struct drm_i915_private *dev_priv)
 	intel_uncore_posting_read(&dev_priv->uncore, GEN8_MASTER_IRQ);
 }
 
+#define I9XX_HAS_FBC(i915) (IS_I85X(i915) || IS_I865G(i915) || IS_I915GM(i915) || IS_I945GM(i915))
+
 static u32 i9xx_error_mask(struct drm_i915_private *i915)
 {
-	struct intel_display *display = i915->display;
 	/*
 	 * On gen2/3 FBC generates (seemingly spurious)
 	 * display INVALID_GTT/INVALID_GTT_PTE table errors.
@@ -841,7 +809,7 @@ static u32 i9xx_error_mask(struct drm_i915_private *i915)
 	 * Unfortunately we can't mask off individual PGTBL_ER bits,
 	 * so we just have to mask off all page table errors via EMR.
 	 */
-	if (HAS_FBC(display))
+	if (I9XX_HAS_FBC(i915))
 		return I915_ERROR_MEMORY_REFRESH;
 	else
 		return I915_ERROR_PAGE_TABLE |
@@ -897,7 +865,7 @@ static void i915_irq_reset(struct drm_i915_private *dev_priv)
 
 	gen2_error_reset(uncore, GEN2_ERROR_REGS);
 	gen2_irq_reset(uncore, GEN2_IRQ_REGS);
-	dev_priv->irq_mask = ~0u;
+	dev_priv->gen2_imr_mask = ~0u;
 }
 
 static void i915_irq_postinstall(struct drm_i915_private *dev_priv)
@@ -908,28 +876,14 @@ static void i915_irq_postinstall(struct drm_i915_private *dev_priv)
 
 	gen2_error_init(uncore, GEN2_ERROR_REGS, ~i9xx_error_mask(dev_priv));
 
-	dev_priv->irq_mask =
-		~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
-		  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
-		  I915_MASTER_ERROR_INTERRUPT);
+	enable_mask = i9xx_display_irq_enable_mask(display) |
+		I915_MASTER_ERROR_INTERRUPT;
 
-	enable_mask =
-		I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
-		I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
-		I915_MASTER_ERROR_INTERRUPT |
-		I915_USER_INTERRUPT;
+	dev_priv->gen2_imr_mask = ~enable_mask;
 
-	if (DISPLAY_VER(display) >= 3) {
-		dev_priv->irq_mask &= ~I915_ASLE_INTERRUPT;
-		enable_mask |= I915_ASLE_INTERRUPT;
-	}
+	enable_mask |= I915_USER_INTERRUPT;
 
-	if (HAS_HOTPLUG(display)) {
-		dev_priv->irq_mask &= ~I915_DISPLAY_PORT_INTERRUPT;
-		enable_mask |= I915_DISPLAY_PORT_INTERRUPT;
-	}
-
-	gen2_irq_init(uncore, GEN2_IRQ_REGS, dev_priv->irq_mask, enable_mask);
+	gen2_irq_init(uncore, GEN2_IRQ_REGS, dev_priv->gen2_imr_mask, enable_mask);
 
 	i915_display_irq_postinstall(display);
 }
@@ -958,8 +912,7 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
 
 		ret = IRQ_HANDLED;
 
-		if (HAS_HOTPLUG(display) &&
-		    iir & I915_DISPLAY_PORT_INTERRUPT)
+		if (iir & I915_DISPLAY_PORT_INTERRUPT)
 			hotplug_status = i9xx_hpd_irq_ack(display);
 
 		/* Call regardless, as some status bits might not be
@@ -999,7 +952,7 @@ static void i965_irq_reset(struct drm_i915_private *dev_priv)
 
 	gen2_error_reset(uncore, GEN2_ERROR_REGS);
 	gen2_irq_reset(uncore, GEN2_IRQ_REGS);
-	dev_priv->irq_mask = ~0u;
+	dev_priv->gen2_imr_mask = ~0u;
 }
 
 static u32 i965_error_mask(struct drm_i915_private *i915)
@@ -1029,25 +982,17 @@ static void i965_irq_postinstall(struct drm_i915_private *dev_priv)
 
 	gen2_error_init(uncore, GEN2_ERROR_REGS, ~i965_error_mask(dev_priv));
 
-	dev_priv->irq_mask =
-		~(I915_ASLE_INTERRUPT |
-		  I915_DISPLAY_PORT_INTERRUPT |
-		  I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
-		  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
-		  I915_MASTER_ERROR_INTERRUPT);
+	enable_mask = i9xx_display_irq_enable_mask(display) |
+		I915_MASTER_ERROR_INTERRUPT;
 
-	enable_mask =
-		I915_ASLE_INTERRUPT |
-		I915_DISPLAY_PORT_INTERRUPT |
-		I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
-		I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
-		I915_MASTER_ERROR_INTERRUPT |
-		I915_USER_INTERRUPT;
+	dev_priv->gen2_imr_mask = ~enable_mask;
+
+	enable_mask |= I915_USER_INTERRUPT;
 
 	if (IS_G4X(dev_priv))
 		enable_mask |= I915_BSD_USER_INTERRUPT;
 
-	gen2_irq_init(uncore, GEN2_IRQ_REGS, dev_priv->irq_mask, enable_mask);
+	gen2_irq_init(uncore, GEN2_IRQ_REGS, dev_priv->gen2_imr_mask, enable_mask);
 
 	i965_display_irq_postinstall(display);
 }
diff --git a/drivers/gpu/drm/i915/i915_jiffies.h b/drivers/gpu/drm/i915/i915_jiffies.h
new file mode 100644
index 000000000000..18a4eaea897a
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_jiffies.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __I915_JIFFIES_H__
+#define __I915_JIFFIES_H__
+
+#include <linux/jiffies.h>
+
+static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
+{
+	unsigned long j = msecs_to_jiffies(m);
+
+	return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
+}
+
+#endif /* __I915_JIFFIES_H__ */
diff --git a/drivers/gpu/drm/i915/i915_mmio_range.c b/drivers/gpu/drm/i915/i915_mmio_range.c
new file mode 100644
index 000000000000..724041e81aa7
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_mmio_range.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#include "i915_mmio_range.h"
+
+bool i915_mmio_range_table_contains(u32 addr, const struct i915_mmio_range *table)
+{
+	while (table->start || table->end) {
+		if (addr >= table->start && addr <= table->end)
+			return true;
+
+		table++;
+	}
+
+	return false;
+}
diff --git a/drivers/gpu/drm/i915/i915_mmio_range.h b/drivers/gpu/drm/i915/i915_mmio_range.h
new file mode 100644
index 000000000000..f1c7086d3e3c
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_mmio_range.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __I915_MMIO_RANGE_H__
+#define __I915_MMIO_RANGE_H__
+
+#include <linux/types.h>
+
+/* Other register ranges (e.g., shadow tables, MCR tables, etc.) */
+struct i915_mmio_range {
+	u32 start;
+	u32 end;
+};
+
+bool i915_mmio_range_table_contains(u32 addr, const struct i915_mmio_range *table);
+
+#endif /* __I915_MMIO_RANGE_H__ */
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 1658f1246c6f..0b9d9f3f7813 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -219,6 +219,7 @@
 #include "i915_perf.h"
 #include "i915_perf_oa_regs.h"
 #include "i915_reg.h"
+#include "i915_mmio_range.h"
 
 /* HW requires this to be a power of two, between 128k and 16M, though driver
  * is currently generally designed assuming the largest 16M size is used such
@@ -4320,29 +4321,17 @@ static bool gen8_is_valid_flex_addr(struct i915_perf *perf, u32 addr)
 	return false;
 }
 
-static bool reg_in_range_table(u32 addr, const struct i915_range *table)
-{
-	while (table->start || table->end) {
-		if (addr >= table->start && addr <= table->end)
-			return true;
-
-		table++;
-	}
-
-	return false;
-}
-
 #define REG_EQUAL(addr, mmio) \
 	((addr) == i915_mmio_reg_offset(mmio))
 
-static const struct i915_range gen7_oa_b_counters[] = {
+static const struct i915_mmio_range gen7_oa_b_counters[] = {
 	{ .start = 0x2710, .end = 0x272c },	/* OASTARTTRIG[1-8] */
 	{ .start = 0x2740, .end = 0x275c },	/* OAREPORTTRIG[1-8] */
 	{ .start = 0x2770, .end = 0x27ac },	/* OACEC[0-7][0-1] */
 	{}
 };
 
-static const struct i915_range gen12_oa_b_counters[] = {
+static const struct i915_mmio_range gen12_oa_b_counters[] = {
 	{ .start = 0x2b2c, .end = 0x2b2c },	/* GEN12_OAG_OA_PESS */
 	{ .start = 0xd900, .end = 0xd91c },	/* GEN12_OAG_OASTARTTRIG[1-8] */
 	{ .start = 0xd920, .end = 0xd93c },	/* GEN12_OAG_OAREPORTTRIG1[1-8] */
@@ -4353,7 +4342,7 @@ static const struct i915_range gen12_oa_b_counters[] = {
 	{}
 };
 
-static const struct i915_range mtl_oam_b_counters[] = {
+static const struct i915_mmio_range mtl_oam_b_counters[] = {
 	{ .start = 0x393000, .end = 0x39301c },	/* GEN12_OAM_STARTTRIG1[1-8] */
 	{ .start = 0x393020, .end = 0x39303c },	/* GEN12_OAM_REPORTTRIG1[1-8] */
 	{ .start = 0x393040, .end = 0x39307c },	/* GEN12_OAM_CEC[0-7][0-1] */
@@ -4361,43 +4350,43 @@ static const struct i915_range mtl_oam_b_counters[] = {
 	{}
 };
 
-static const struct i915_range xehp_oa_b_counters[] = {
+static const struct i915_mmio_range xehp_oa_b_counters[] = {
 	{ .start = 0xdc48, .end = 0xdc48 },	/* OAA_ENABLE_REG */
 	{ .start = 0xdd00, .end = 0xdd48 },	/* OAG_LCE0_0 - OAA_LENABLE_REG */
 	{}
 };
 
-static const struct i915_range gen7_oa_mux_regs[] = {
+static const struct i915_mmio_range gen7_oa_mux_regs[] = {
 	{ .start = 0x91b8, .end = 0x91cc },	/* OA_PERFCNT[1-2], OA_PERFMATRIX */
 	{ .start = 0x9800, .end = 0x9888 },	/* MICRO_BP0_0 - NOA_WRITE */
 	{ .start = 0xe180, .end = 0xe180 },	/* HALF_SLICE_CHICKEN2 */
 	{}
 };
 
-static const struct i915_range hsw_oa_mux_regs[] = {
+static const struct i915_mmio_range hsw_oa_mux_regs[] = {
 	{ .start = 0x09e80, .end = 0x09ea4 }, /* HSW_MBVID2_NOA[0-9] */
 	{ .start = 0x09ec0, .end = 0x09ec0 }, /* HSW_MBVID2_MISR0 */
 	{ .start = 0x25100, .end = 0x2ff90 },
 	{}
 };
 
-static const struct i915_range chv_oa_mux_regs[] = {
+static const struct i915_mmio_range chv_oa_mux_regs[] = {
 	{ .start = 0x182300, .end = 0x1823a4 },
 	{}
 };
 
-static const struct i915_range gen8_oa_mux_regs[] = {
+static const struct i915_mmio_range gen8_oa_mux_regs[] = {
 	{ .start = 0x0d00, .end = 0x0d2c },	/* RPM_CONFIG[0-1], NOA_CONFIG[0-8] */
 	{ .start = 0x20cc, .end = 0x20cc },	/* WAIT_FOR_RC6_EXIT */
 	{}
 };
 
-static const struct i915_range gen11_oa_mux_regs[] = {
+static const struct i915_mmio_range gen11_oa_mux_regs[] = {
 	{ .start = 0x91c8, .end = 0x91dc },	/* OA_PERFCNT[3-4] */
 	{}
 };
 
-static const struct i915_range gen12_oa_mux_regs[] = {
+static const struct i915_mmio_range gen12_oa_mux_regs[] = {
 	{ .start = 0x0d00, .end = 0x0d04 },     /* RPM_CONFIG[0-1] */
 	{ .start = 0x0d0c, .end = 0x0d2c },     /* NOA_CONFIG[0-8] */
 	{ .start = 0x9840, .end = 0x9840 },	/* GDT_CHICKEN_BITS */
@@ -4410,7 +4399,7 @@ static const struct i915_range gen12_oa_mux_regs[] = {
  * Ref: 14010536224:
  * 0x20cc is repurposed on MTL, so use a separate array for MTL.
  */
-static const struct i915_range mtl_oa_mux_regs[] = {
+static const struct i915_mmio_range mtl_oa_mux_regs[] = {
 	{ .start = 0x0d00, .end = 0x0d04 },	/* RPM_CONFIG[0-1] */
 	{ .start = 0x0d0c, .end = 0x0d2c },	/* NOA_CONFIG[0-8] */
 	{ .start = 0x9840, .end = 0x9840 },	/* GDT_CHICKEN_BITS */
@@ -4421,61 +4410,61 @@ static const struct i915_range mtl_oa_mux_regs[] = {
 
 static bool gen7_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen7_oa_b_counters);
+	return i915_mmio_range_table_contains(addr, gen7_oa_b_counters);
 }
 
 static bool gen8_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen7_oa_mux_regs) ||
-		reg_in_range_table(addr, gen8_oa_mux_regs);
+	return i915_mmio_range_table_contains(addr, gen7_oa_mux_regs) ||
+		i915_mmio_range_table_contains(addr, gen8_oa_mux_regs);
 }
 
 static bool gen11_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen7_oa_mux_regs) ||
-		reg_in_range_table(addr, gen8_oa_mux_regs) ||
-		reg_in_range_table(addr, gen11_oa_mux_regs);
+	return i915_mmio_range_table_contains(addr, gen7_oa_mux_regs) ||
+		i915_mmio_range_table_contains(addr, gen8_oa_mux_regs) ||
+		i915_mmio_range_table_contains(addr, gen11_oa_mux_regs);
 }
 
 static bool hsw_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen7_oa_mux_regs) ||
-		reg_in_range_table(addr, hsw_oa_mux_regs);
+	return i915_mmio_range_table_contains(addr, gen7_oa_mux_regs) ||
+		i915_mmio_range_table_contains(addr, hsw_oa_mux_regs);
 }
 
 static bool chv_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen7_oa_mux_regs) ||
-		reg_in_range_table(addr, chv_oa_mux_regs);
+	return i915_mmio_range_table_contains(addr, gen7_oa_mux_regs) ||
+		i915_mmio_range_table_contains(addr, chv_oa_mux_regs);
 }
 
 static bool gen12_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, gen12_oa_b_counters);
+	return i915_mmio_range_table_contains(addr, gen12_oa_b_counters);
 }
 
 static bool mtl_is_valid_oam_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
 	if (HAS_OAM(perf->i915) &&
 	    GRAPHICS_VER_FULL(perf->i915) >= IP_VER(12, 70))
-		return reg_in_range_table(addr, mtl_oam_b_counters);
+		return i915_mmio_range_table_contains(addr, mtl_oam_b_counters);
 
 	return false;
 }
 
 static bool xehp_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
-	return reg_in_range_table(addr, xehp_oa_b_counters) ||
-		reg_in_range_table(addr, gen12_oa_b_counters) ||
+	return i915_mmio_range_table_contains(addr, xehp_oa_b_counters) ||
+		i915_mmio_range_table_contains(addr, gen12_oa_b_counters) ||
 		mtl_is_valid_oam_b_counter_addr(perf, addr);
 }
 
 static bool gen12_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
 	if (GRAPHICS_VER_FULL(perf->i915) >= IP_VER(12, 70))
-		return reg_in_range_table(addr, mtl_oa_mux_regs);
+		return i915_mmio_range_table_contains(addr, mtl_oa_mux_regs);
 	else
-		return reg_in_range_table(addr, gen12_oa_mux_regs);
+		return i915_mmio_range_table_contains(addr, gen12_oa_mux_regs);
 }
 
 static u32 mask_reg_value(u32 reg, u32 val)
diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
index 5bc696bfbb0f..d8f69bba79a9 100644
--- a/drivers/gpu/drm/i915/i915_pmu.c
+++ b/drivers/gpu/drm/i915/i915_pmu.c
@@ -895,7 +895,7 @@ static ssize_t i915_pmu_format_show(struct device *dev,
 	struct i915_str_attribute *eattr;
 
 	eattr = container_of(attr, struct i915_str_attribute, attr);
-	return sprintf(buf, "%s\n", eattr->str);
+	return sysfs_emit(buf, "%s\n", eattr->str);
 }
 
 #define I915_PMU_FORMAT_ATTR(_name, _config) \
@@ -925,7 +925,7 @@ static ssize_t i915_pmu_event_show(struct device *dev,
 	struct i915_ext_attribute *eattr;
 
 	eattr = container_of(attr, struct i915_ext_attribute, attr);
-	return sprintf(buf, "config=0x%lx\n", eattr->val);
+	return sysfs_emit(buf, "config=0x%lx\n", eattr->val);
 }
 
 #define __event(__counter, __name, __unit) \
diff --git a/drivers/gpu/drm/i915/i915_reg_defs.h b/drivers/gpu/drm/i915/i915_reg_defs.h
index bfe98cb9a038..e81fac8ab51b 100644
--- a/drivers/gpu/drm/i915/i915_reg_defs.h
+++ b/drivers/gpu/drm/i915/i915_reg_defs.h
@@ -174,6 +174,16 @@
  */
 #define REG_FIELD_GET8(__mask, __val)   ((u8)FIELD_GET(__mask, __val))
 
+/**
+ * REG_FIELD_MAX() - produce the maximum value representable by a field
+ * @__mask: shifted mask defining the field's length and position
+ *
+ * Local wrapper for FIELD_MAX() to return the maximum bit value that can
+ * be held in the field specified by @_mask, cast to u32 for consistency
+ * with other macros.
+ */
+#define REG_FIELD_MAX(__mask)	((u32)FIELD_MAX(__mask))
+
 typedef struct {
 	u32 reg;
 } i915_reg_t;
diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
index a0c892e4c40d..4f75115b87d6 100644
--- a/drivers/gpu/drm/i915/i915_utils.h
+++ b/drivers/gpu/drm/i915/i915_utils.h
@@ -38,8 +38,10 @@
 
 struct drm_i915_private;
 
+#ifndef MISSING_CASE
 #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
 			     __stringify(x), (long)(x))
+#endif
 
 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG)
 
@@ -65,11 +67,13 @@ bool i915_error_injected(void);
 		drm_err(&(i915)->drm, fmt, ##__VA_ARGS__); \
 })
 
+#ifndef fetch_and_zero
 #define fetch_and_zero(ptr) ({						\
 	typeof(*ptr) __T = *(ptr);					\
 	*(ptr) = (typeof(*ptr))0;					\
 	__T;								\
 })
+#endif
 
 /*
  * check_user_mbz: Check that a user value exists and is zero
@@ -100,43 +104,6 @@ static inline bool is_power_of_2_u64(u64 n)
 	return (n != 0 && ((n & (n - 1)) == 0));
 }
 
-static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
-{
-	unsigned long j = msecs_to_jiffies(m);
-
-	return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
-}
-
-/*
- * If you need to wait X milliseconds between events A and B, but event B
- * doesn't happen exactly after event A, you record the timestamp (jiffies) of
- * when event A happened, then just before event B you call this function and
- * pass the timestamp as the first argument, and X as the second argument.
- */
-static inline void
-wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
-{
-	unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
-
-	/*
-	 * Don't re-read the value of "jiffies" every time since it may change
-	 * behind our back and break the math.
-	 */
-	tmp_jiffies = jiffies;
-	target_jiffies = timestamp_jiffies +
-			 msecs_to_jiffies_timeout(to_wait_ms);
-
-	if (time_after(target_jiffies, tmp_jiffies)) {
-		remaining_jiffies = target_jiffies - tmp_jiffies;
-		while (remaining_jiffies)
-			remaining_jiffies =
-			    schedule_timeout_uninterruptible(remaining_jiffies);
-	}
-}
-
-#define KHz(x) (1000 * (x))
-#define MHz(x) KHz(1000 * (x))
-
 void add_taint_for_CI(struct drm_i915_private *i915, unsigned int taint);
 static inline void __add_taint_for_CI(unsigned int taint)
 {
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 7ce3e6de0c19..d11c2814b787 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -29,6 +29,7 @@
 #include <linux/pm_runtime.h>
 
 #include <drm/drm_print.h>
+#include <drm/intel/display_parent_interface.h>
 
 #include "i915_drv.h"
 #include "i915_trace.h"
@@ -177,6 +178,82 @@ static intel_wakeref_t __intel_runtime_pm_get(struct intel_runtime_pm *rpm,
 	return track_intel_runtime_pm_wakeref(rpm);
 }
 
+static struct intel_runtime_pm *drm_to_rpm(const struct drm_device *drm)
+{
+	struct drm_i915_private *i915 = to_i915(drm);
+
+	return &i915->runtime_pm;
+}
+
+static struct ref_tracker *i915_display_rpm_get(const struct drm_device *drm)
+{
+	return intel_runtime_pm_get(drm_to_rpm(drm));
+}
+
+static struct ref_tracker *i915_display_rpm_get_raw(const struct drm_device *drm)
+{
+	return intel_runtime_pm_get_raw(drm_to_rpm(drm));
+}
+
+static struct ref_tracker *i915_display_rpm_get_if_in_use(const struct drm_device *drm)
+{
+	return intel_runtime_pm_get_if_in_use(drm_to_rpm(drm));
+}
+
+static struct ref_tracker *i915_display_rpm_get_noresume(const struct drm_device *drm)
+{
+	return intel_runtime_pm_get_noresume(drm_to_rpm(drm));
+}
+
+static void i915_display_rpm_put(const struct drm_device *drm, struct ref_tracker *wakeref)
+{
+	intel_runtime_pm_put(drm_to_rpm(drm), wakeref);
+}
+
+static void i915_display_rpm_put_raw(const struct drm_device *drm, struct ref_tracker *wakeref)
+{
+	intel_runtime_pm_put_raw(drm_to_rpm(drm), wakeref);
+}
+
+static void i915_display_rpm_put_unchecked(const struct drm_device *drm)
+{
+	intel_runtime_pm_put_unchecked(drm_to_rpm(drm));
+}
+
+static bool i915_display_rpm_suspended(const struct drm_device *drm)
+{
+	return intel_runtime_pm_suspended(drm_to_rpm(drm));
+}
+
+static void i915_display_rpm_assert_held(const struct drm_device *drm)
+{
+	assert_rpm_wakelock_held(drm_to_rpm(drm));
+}
+
+static void i915_display_rpm_assert_block(const struct drm_device *drm)
+{
+	disable_rpm_wakeref_asserts(drm_to_rpm(drm));
+}
+
+static void i915_display_rpm_assert_unblock(const struct drm_device *drm)
+{
+	enable_rpm_wakeref_asserts(drm_to_rpm(drm));
+}
+
+const struct intel_display_rpm_interface i915_display_rpm_interface = {
+	.get = i915_display_rpm_get,
+	.get_raw = i915_display_rpm_get_raw,
+	.get_if_in_use = i915_display_rpm_get_if_in_use,
+	.get_noresume = i915_display_rpm_get_noresume,
+	.put = i915_display_rpm_put,
+	.put_raw = i915_display_rpm_put_raw,
+	.put_unchecked = i915_display_rpm_put_unchecked,
+	.suspended = i915_display_rpm_suspended,
+	.assert_held = i915_display_rpm_assert_held,
+	.assert_block = i915_display_rpm_assert_block,
+	.assert_unblock = i915_display_rpm_assert_unblock
+};
+
 /**
  * intel_runtime_pm_get_raw - grab a raw runtime pm reference
  * @rpm: the intel_runtime_pm structure
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.h b/drivers/gpu/drm/i915/intel_runtime_pm.h
index 7428bd8fa67f..ed6c43b17f9a 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.h
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.h
@@ -14,6 +14,7 @@
 struct device;
 struct drm_i915_private;
 struct drm_printer;
+struct intel_display_rpm_interface;
 
 /*
  * This struct helps tracking the state needed for runtime PM, which puts the
@@ -226,4 +227,6 @@ static inline void print_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm,
 }
 #endif
 
+extern const struct intel_display_rpm_interface i915_display_rpm_interface;
+
 #endif /* __INTEL_RUNTIME_PM_H__ */
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 8cb59f8d1f4c..aba90b80854f 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -35,6 +35,7 @@
 #include "i915_reg.h"
 #include "i915_vgpu.h"
 #include "i915_wait_util.h"
+#include "i915_mmio_range.h"
 #include "intel_uncore_trace.h"
 
 #define FORCEWAKE_ACK_TIMEOUT_MS 50
@@ -999,7 +1000,7 @@ find_fw_domain(struct intel_uncore *uncore, u32 offset)
  * scanned for obvious mistakes or typos by the selftests.
  */
 
-static const struct i915_range gen8_shadowed_regs[] = {
+static const struct i915_mmio_range gen8_shadowed_regs[] = {
 	{ .start =  0x2030, .end =  0x2030 },
 	{ .start =  0xA008, .end =  0xA00C },
 	{ .start = 0x12030, .end = 0x12030 },
@@ -1007,7 +1008,7 @@ static const struct i915_range gen8_shadowed_regs[] = {
 	{ .start = 0x22030, .end = 0x22030 },
 };
 
-static const struct i915_range gen11_shadowed_regs[] = {
+static const struct i915_mmio_range gen11_shadowed_regs[] = {
 	{ .start =   0x2030, .end =   0x2030 },
 	{ .start =   0x2550, .end =   0x2550 },
 	{ .start =   0xA008, .end =   0xA00C },
@@ -1034,7 +1035,7 @@ static const struct i915_range gen11_shadowed_regs[] = {
 	{ .start = 0x1D8510, .end = 0x1D8550 },
 };
 
-static const struct i915_range gen12_shadowed_regs[] = {
+static const struct i915_mmio_range gen12_shadowed_regs[] = {
 	{ .start =   0x2030, .end =   0x2030 },
 	{ .start =   0x2510, .end =   0x2550 },
 	{ .start =   0xA008, .end =   0xA00C },
@@ -1078,7 +1079,7 @@ static const struct i915_range gen12_shadowed_regs[] = {
 	{ .start = 0x1F8510, .end = 0x1F8550 },
 };
 
-static const struct i915_range dg2_shadowed_regs[] = {
+static const struct i915_mmio_range dg2_shadowed_regs[] = {
 	{ .start =   0x2030, .end =   0x2030 },
 	{ .start =   0x2510, .end =   0x2550 },
 	{ .start =   0xA008, .end =   0xA00C },
@@ -1117,7 +1118,7 @@ static const struct i915_range dg2_shadowed_regs[] = {
 	{ .start = 0x1F8510, .end = 0x1F8550 },
 };
 
-static const struct i915_range mtl_shadowed_regs[] = {
+static const struct i915_mmio_range mtl_shadowed_regs[] = {
 	{ .start =   0x2030, .end =   0x2030 },
 	{ .start =   0x2510, .end =   0x2550 },
 	{ .start =   0xA008, .end =   0xA00C },
@@ -1135,7 +1136,7 @@ static const struct i915_range mtl_shadowed_regs[] = {
 	{ .start =  0x22510, .end =  0x22550 },
 };
 
-static const struct i915_range xelpmp_shadowed_regs[] = {
+static const struct i915_mmio_range xelpmp_shadowed_regs[] = {
 	{ .start = 0x1C0030, .end = 0x1C0030 },
 	{ .start = 0x1C0510, .end = 0x1C0550 },
 	{ .start = 0x1C8030, .end = 0x1C8030 },
@@ -1156,7 +1157,7 @@ static const struct i915_range xelpmp_shadowed_regs[] = {
 	{ .start = 0x38CFD4, .end = 0x38CFDC },
 };
 
-static int mmio_range_cmp(u32 key, const struct i915_range *range)
+static int mmio_range_cmp(u32 key, const struct i915_mmio_range *range)
 {
 	if (key < range->start)
 		return -1;
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index 6048b99b96cb..fafc2ca9a237 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -123,12 +123,6 @@ struct intel_forcewake_range {
 	enum forcewake_domains domains;
 };
 
-/* Other register ranges (e.g., shadow tables, MCR tables, etc.) */
-struct i915_range {
-	u32 start;
-	u32 end;
-};
-
 struct intel_uncore {
 	void __iomem *regs;
 
@@ -162,7 +156,7 @@ struct intel_uncore {
 	 * Shadowed registers are special cases where we can safely write
 	 * to the register *without* grabbing forcewake.
 	 */
-	const struct i915_range *shadowed_reg_table;
+	const struct i915_mmio_range *shadowed_reg_table;
 	unsigned int shadowed_reg_table_entries;
 
 	struct notifier_block pmic_bus_access_nb;
diff --git a/drivers/gpu/drm/i915/selftests/i915_selftest.c b/drivers/gpu/drm/i915/selftests/i915_selftest.c
index 9c276c9d0a75..8460f0a70d04 100644
--- a/drivers/gpu/drm/i915/selftests/i915_selftest.c
+++ b/drivers/gpu/drm/i915/selftests/i915_selftest.c
@@ -30,6 +30,7 @@
 
 #include "i915_driver.h"
 #include "i915_drv.h"
+#include "i915_jiffies.h"
 #include "i915_selftest.h"
 #include "i915_wait_util.h"
 #include "igt_flush_test.h"
diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c
index 58bcbdcef563..507bf42a1aaf 100644
--- a/drivers/gpu/drm/i915/selftests/intel_uncore.c
+++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c
@@ -64,7 +64,7 @@ static int intel_fw_table_check(const struct intel_forcewake_range *ranges,
 static int intel_shadow_table_check(void)
 {
 	struct {
-		const struct i915_range *regs;
+		const struct i915_mmio_range *regs;
 		unsigned int size;
 	} range_lists[] = {
 		{ gen8_shadowed_regs, ARRAY_SIZE(gen8_shadowed_regs) },
@@ -74,7 +74,7 @@ static int intel_shadow_table_check(void)
 		{ mtl_shadowed_regs, ARRAY_SIZE(mtl_shadowed_regs) },
 		{ xelpmp_shadowed_regs, ARRAY_SIZE(xelpmp_shadowed_regs) },
 	};
-	const struct i915_range *range;
+	const struct i915_mmio_range *range;
 	unsigned int i, j;
 	s32 prev;
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index fb8751bd5df0..b59626c4994c 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -33,6 +33,7 @@
 #include "gt/intel_gt.h"
 #include "gt/intel_gt_requests.h"
 #include "gt/mock_engine.h"
+#include "i915_driver.h"
 #include "intel_memory_region.h"
 #include "intel_region_ttm.h"
 
@@ -183,7 +184,8 @@ struct drm_i915_private *mock_gem_device(void)
 	/* Set up device info and initial runtime info. */
 	intel_device_info_driver_create(i915, pdev->device, &mock_info);
 
-	display = intel_display_device_probe(pdev);
+	/* FIXME: Can we run selftests using a mock device without display? */
+	display = intel_display_device_probe(pdev, i915_driver_parent_interface());
 	if (IS_ERR(display))
 		goto err_device;
 
diff --git a/drivers/gpu/drm/i915/soc/intel_dram.c b/drivers/gpu/drm/i915/soc/intel_dram.c
index edffaed8f9a7..8841cfe1cac8 100644
--- a/drivers/gpu/drm/i915/soc/intel_dram.c
+++ b/drivers/gpu/drm/i915/soc/intel_dram.c
@@ -335,7 +335,7 @@ static bool
 skl_is_16gb_dimm(const struct dram_dimm_info *dimm)
 {
 	/* Convert total Gb to Gb per DRAM device */
-	return dimm->size / (intel_dimm_num_devices(dimm) ?: 1) == 16;
+	return dimm->size / (intel_dimm_num_devices(dimm) ?: 1) >= 16;
 }
 
 static void
@@ -354,7 +354,7 @@ skl_dram_get_dimm_info(struct drm_i915_private *i915,
 	}
 
 	drm_dbg_kms(&i915->drm,
-		    "CH%u DIMM %c size: %u Gb, width: X%u, ranks: %u, 16Gb DIMMs: %s\n",
+		    "CH%u DIMM %c size: %u Gb, width: X%u, ranks: %u, 16Gb+ DIMMs: %s\n",
 		    channel, dimm_name, dimm->size, dimm->width, dimm->ranks,
 		    str_yes_no(skl_is_16gb_dimm(dimm)));
 }
@@ -384,7 +384,7 @@ skl_dram_get_channel_info(struct drm_i915_private *i915,
 	ch->is_16gb_dimm = skl_is_16gb_dimm(&ch->dimm_l) ||
 		skl_is_16gb_dimm(&ch->dimm_s);
 
-	drm_dbg_kms(&i915->drm, "CH%u ranks: %u, 16Gb DIMMs: %s\n",
+	drm_dbg_kms(&i915->drm, "CH%u ranks: %u, 16Gb+ DIMMs: %s\n",
 		    channel, ch->ranks, str_yes_no(ch->is_16gb_dimm));
 
 	return 0;
@@ -406,7 +406,7 @@ skl_dram_get_channels_info(struct drm_i915_private *i915, struct dram_info *dram
 	u32 val;
 	int ret;
 
-	/* Assume 16Gb DIMMs are present until proven otherwise */
+	/* Assume 16Gb+ DIMMs are present until proven otherwise */
 	dram_info->has_16gb_dimms = true;
 
 	val = intel_uncore_read(&i915->uncore,
@@ -438,7 +438,7 @@ skl_dram_get_channels_info(struct drm_i915_private *i915, struct dram_info *dram
 	drm_dbg_kms(&i915->drm, "Memory configuration is symmetric? %s\n",
 		    str_yes_no(dram_info->symmetric_memory));
 
-	drm_dbg_kms(&i915->drm, "16Gb DIMMs: %s\n",
+	drm_dbg_kms(&i915->drm, "16Gb+ DIMMs: %s\n",
 		    str_yes_no(dram_info->has_16gb_dimms));
 
 	return 0;
diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index 3fbec058facc..f8a3a1bfe42e 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -205,7 +205,6 @@ $(obj)/i915-display/%.o: $(srctree)/drivers/gpu/drm/i915/display/%.c FORCE
 # Display code specific to xe
 xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	display/ext/i915_irq.o \
-	display/ext/i915_utils.o \
 	display/intel_bo.o \
 	display/intel_fb_bo.o \
 	display/intel_fbdev_fb.o \
@@ -218,6 +217,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	display/xe_hdcp_gsc.o \
 	display/xe_panic.o \
 	display/xe_plane_initial.o \
+	display/xe_stolen.o \
 	display/xe_tdf.o
 
 # SOC code shared with i915
@@ -234,6 +234,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_backlight.o \
 	i915-display/intel_bios.o \
 	i915-display/intel_bw.o \
+	i915-display/intel_casf.o \
 	i915-display/intel_cdclk.o \
 	i915-display/intel_cmtg.o \
 	i915-display/intel_color.o \
@@ -243,6 +244,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_crtc_state_dump.o \
 	i915-display/intel_cursor.o \
 	i915-display/intel_cx0_phy.o \
+	i915-display/intel_dbuf_bw.o \
 	i915-display/intel_ddi.o \
 	i915-display/intel_ddi_buf_trans.o \
 	i915-display/intel_display.o \
@@ -254,7 +256,9 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_display_power.o \
 	i915-display/intel_display_power_map.o \
 	i915-display/intel_display_power_well.o \
+	i915-display/intel_display_rpm.o \
 	i915-display/intel_display_trace.o \
+	i915-display/intel_display_utils.o \
 	i915-display/intel_display_wa.o \
 	i915-display/intel_dkl_phy.o \
 	i915-display/intel_dmc.o \
@@ -291,6 +295,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_hti.o \
 	i915-display/intel_link_bw.o \
 	i915-display/intel_lspcon.o \
+	i915-display/intel_lt_phy.o \
 	i915-display/intel_modeset_lock.o \
 	i915-display/intel_modeset_setup.o \
 	i915-display/intel_modeset_verify.o \
@@ -311,6 +316,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_vga.o \
 	i915-display/intel_vrr.o \
 	i915-display/intel_wm.o \
+	i915-display/skl_prefill.o \
 	i915-display/skl_scaler.o \
 	i915-display/skl_universal_plane.o \
 	i915-display/skl_watermark.o
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
index 8a048980ea38..0548b2e0316f 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
@@ -5,10 +5,8 @@
 #define __I915_GEM_OBJECT_H__
 
 struct dma_fence;
-struct i915_sched_attr;
 
-static inline void i915_gem_fence_wait_priority(struct dma_fence *fence,
-						const struct i915_sched_attr *attr)
+static inline void i915_gem_fence_wait_priority_display(struct dma_fence *fence)
 {
 }
 
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h
index f097fc6d5127..48e3256ba37e 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h
@@ -6,80 +6,35 @@
 #ifndef _I915_GEM_STOLEN_H_
 #define _I915_GEM_STOLEN_H_
 
-#include "xe_ttm_stolen_mgr.h"
-#include "xe_res_cursor.h"
-#include "xe_validation.h"
+#include <linux/types.h>
 
-struct xe_bo;
+struct drm_device;
+struct intel_stolen_node;
 
-struct i915_stolen_fb {
-	struct xe_bo *bo;
-};
+int i915_gem_stolen_insert_node_in_range(struct intel_stolen_node *node, u64 size,
+					 unsigned int align, u64 start, u64 end);
 
-static inline int i915_gem_stolen_insert_node_in_range(struct xe_device *xe,
-						       struct i915_stolen_fb *fb,
-						       u32 size, u32 align,
-						       u32 start, u32 end)
-{
-	struct xe_bo *bo;
-	int err = 0;
-	u32 flags = XE_BO_FLAG_PINNED | XE_BO_FLAG_STOLEN;
+int i915_gem_stolen_insert_node(struct intel_stolen_node *node, u64 size,
+				unsigned int align);
 
-	if (start < SZ_4K)
-		start = SZ_4K;
+void i915_gem_stolen_remove_node(struct intel_stolen_node *node);
 
-	if (align) {
-		size = ALIGN(size, align);
-		start = ALIGN(start, align);
-	}
+bool i915_gem_stolen_initialized(struct drm_device *drm);
 
-	bo = xe_bo_create_pin_range_novm(xe, xe_device_get_root_tile(xe),
-					 size, start, end, ttm_bo_type_kernel, flags);
-	if (IS_ERR(bo)) {
-		err = PTR_ERR(bo);
-		bo = NULL;
-		return err;
-	}
+bool i915_gem_stolen_node_allocated(const struct intel_stolen_node *node);
 
-	fb->bo = bo;
+u32 i915_gem_stolen_node_offset(struct intel_stolen_node *node);
 
-	return err;
-}
+u64 i915_gem_stolen_area_address(struct drm_device *drm);
 
-static inline int i915_gem_stolen_insert_node(struct xe_device *xe,
-					      struct i915_stolen_fb *fb,
-					      u32 size, u32 align)
-{
-	/* Not used on xe */
-	BUG_ON(1);
-	return -ENODEV;
-}
+u64 i915_gem_stolen_area_size(struct drm_device *drm);
 
-static inline void i915_gem_stolen_remove_node(struct xe_device *xe,
-					       struct i915_stolen_fb *fb)
-{
-	xe_bo_unpin_map_no_vm(fb->bo);
-	fb->bo = NULL;
-}
+u64 i915_gem_stolen_node_address(struct intel_stolen_node *node);
 
-#define i915_gem_stolen_initialized(xe) (!!ttm_manager_type(&(xe)->ttm, XE_PL_STOLEN))
-#define i915_gem_stolen_node_allocated(fb) (!!((fb)->bo))
+u64 i915_gem_stolen_node_size(const struct intel_stolen_node *node);
 
-static inline u32 i915_gem_stolen_node_offset(struct i915_stolen_fb *fb)
-{
-	struct xe_res_cursor res;
+struct intel_stolen_node *i915_gem_stolen_node_alloc(struct drm_device *drm);
 
-	xe_res_first(fb->bo->ttm.resource, 0, 4096, &res);
-	return res.start;
-}
-
-/* Used for < gen4. These are not supported by Xe */
-#define i915_gem_stolen_area_address(xe) (!WARN_ON(1))
-/* Used for gen9 specific WA. Gen9 is not supported by Xe */
-#define i915_gem_stolen_area_size(xe) (!WARN_ON(1))
-
-#define i915_gem_stolen_node_address(xe, fb) (xe_ttm_stolen_gpu_offset(xe) + \
-					 i915_gem_stolen_node_offset(fb))
-#define i915_gem_stolen_node_size(fb) ((u64)((fb)->bo->ttm.base.size))
+void i915_gem_stolen_node_free(const struct intel_stolen_node *node);
 
 #endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
index b8269391bc69..3e79a74ff7de 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
@@ -12,7 +12,6 @@
 
 #include <drm/drm_drv.h>
 
-#include "xe_device.h" /* for xe_device_has_flat_ccs() */
 #include "xe_device_types.h"
 
 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
@@ -35,7 +34,4 @@ static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
 
 #define IS_MOBILE(xe) (xe && 0)
 
-#define HAS_FLAT_CCS(xe) (xe_device_has_flat_ccs(xe))
-#define HAS_128_BYTE_Y_TILING(xe) (xe || 1)
-
 #endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_scheduler_types.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_scheduler_types.h
deleted file mode 100644
index c11130440d31..000000000000
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_scheduler_types.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/* Copyright © 2025 Intel Corporation */
-
-#ifndef __I915_SCHEDULER_TYPES_H__
-#define __I915_SCHEDULER_TYPES_H__
-
-#define I915_PRIORITY_DISPLAY 0
-
-struct i915_sched_attr {
-	int priority;
-};
-
-#endif
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h
index 1d7c4360e5c0..bcd441dc0fce 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_utils.h
@@ -3,4 +3,11 @@
  * Copyright © 2023 Intel Corporation
  */
 
-#include "../../i915/i915_utils.h"
+/* for soc/ */
+#ifndef MISSING_CASE
+#define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
+			     __stringify(x), (long)(x))
+#endif
+
+/* for a couple of users under i915/display */
+#define i915_inject_probe_failure(unused) ((unused) && 0)
diff --git a/drivers/gpu/drm/xe/display/ext/i915_utils.c b/drivers/gpu/drm/xe/display/ext/i915_utils.c
deleted file mode 100644
index 1421c2a7b64d..000000000000
--- a/drivers/gpu/drm/xe/display/ext/i915_utils.c
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2023 Intel Corporation
- */
-
-#include "i915_drv.h"
-#include "i915_utils.h"
-
-bool i915_vtd_active(struct drm_i915_private *i915)
-{
-	if (device_iommu_mapped(i915->drm.dev))
-		return true;
-
-	/* Running as a guest, we assume the host is enforcing VT'd */
-	return i915_run_as_guest();
-}
-
-#if IS_ENABLED(CONFIG_DRM_I915_DEBUG)
-
-/* i915 specific, just put here for shutting it up */
-int __i915_inject_probe_error(struct drm_i915_private *i915, int err,
-			      const char *func, int line)
-{
-	return 0;
-}
-
-#endif
diff --git a/drivers/gpu/drm/xe/display/intel_fb_bo.c b/drivers/gpu/drm/xe/display/intel_fb_bo.c
index ebdb22c9499d..db8b1a27b4de 100644
--- a/drivers/gpu/drm/xe/display/intel_fb_bo.c
+++ b/drivers/gpu/drm/xe/display/intel_fb_bo.c
@@ -24,8 +24,7 @@ void intel_fb_bo_framebuffer_fini(struct drm_gem_object *obj)
 	xe_bo_put(bo);
 }
 
-int intel_fb_bo_framebuffer_init(struct drm_framebuffer *fb,
-				 struct drm_gem_object *obj,
+int intel_fb_bo_framebuffer_init(struct drm_gem_object *obj,
 				 struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct xe_bo *bo = gem_to_xe_bo(obj);
diff --git a/drivers/gpu/drm/xe/display/intel_fbdev_fb.c b/drivers/gpu/drm/xe/display/intel_fbdev_fb.c
index af8139d00161..7ad76022cb14 100644
--- a/drivers/gpu/drm/xe/display/intel_fbdev_fb.c
+++ b/drivers/gpu/drm/xe/display/intel_fbdev_fb.c
@@ -3,11 +3,8 @@
  * Copyright © 2023 Intel Corporation
  */
 
-#include <drm/drm_fb_helper.h>
+#include <linux/fb.h>
 
-#include "intel_display_core.h"
-#include "intel_display_types.h"
-#include "intel_fb.h"
 #include "intel_fbdev_fb.h"
 #include "xe_bo.h"
 #include "xe_ttm_stolen_mgr.h"
@@ -15,30 +12,22 @@
 
 #include <generated/xe_device_wa_oob.h>
 
-struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
-					       struct drm_fb_helper_surface_size *sizes)
+/*
+ * FIXME: There shouldn't be any reason to have XE_PAGE_SIZE stride
+ * alignment. The same 64 as i915 uses should be fine, and we shouldn't need to
+ * have driver specific values. However, dropping the stride alignment to 64
+ * leads to underflowing the bo pin count in the atomic cleanup work.
+ */
+u32 intel_fbdev_fb_pitch_align(u32 stride)
 {
-	struct drm_framebuffer *fb;
-	struct drm_device *dev = helper->dev;
-	struct xe_device *xe = to_xe_device(dev);
-	struct drm_mode_fb_cmd2 mode_cmd = {};
+	return ALIGN(stride, XE_PAGE_SIZE);
+}
+
+struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size)
+{
+	struct xe_device *xe = to_xe_device(drm);
 	struct xe_bo *obj;
-	int size;
 
-	/* we don't do packed 24bpp */
-	if (sizes->surface_bpp == 24)
-		sizes->surface_bpp = 32;
-
-	mode_cmd.width = sizes->surface_width;
-	mode_cmd.height = sizes->surface_height;
-
-	mode_cmd.pitches[0] = ALIGN(mode_cmd.width *
-				    DIV_ROUND_UP(sizes->surface_bpp, 8), XE_PAGE_SIZE);
-	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
-							  sizes->surface_depth);
-
-	size = mode_cmd.pitches[0] * mode_cmd.height;
-	size = PAGE_ALIGN(size);
 	obj = ERR_PTR(-ENODEV);
 
 	if (!IS_DGFX(xe) && !XE_DEVICE_WA(xe, 22019338487_display)) {
@@ -62,33 +51,22 @@ struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
 
 	if (IS_ERR(obj)) {
 		drm_err(&xe->drm, "failed to allocate framebuffer (%pe)\n", obj);
-		fb = ERR_PTR(-ENOMEM);
-		goto err;
+		return ERR_PTR(-ENOMEM);
 	}
 
-	fb = intel_framebuffer_create(&obj->ttm.base,
-				      drm_get_format_info(dev,
-							  mode_cmd.pixel_format,
-							  mode_cmd.modifier[0]),
-				      &mode_cmd);
-	if (IS_ERR(fb)) {
-		xe_bo_unpin_map_no_vm(obj);
-		goto err;
-	}
-
-	drm_gem_object_put(&obj->ttm.base);
-
-	return to_intel_framebuffer(fb);
-
-err:
-	return ERR_CAST(fb);
+	return &obj->ttm.base;
 }
 
-int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info,
+void intel_fbdev_fb_bo_destroy(struct drm_gem_object *obj)
+{
+	xe_bo_unpin_map_no_vm(gem_to_xe_bo(obj));
+}
+
+int intel_fbdev_fb_fill_info(struct drm_device *drm, struct fb_info *info,
 			     struct drm_gem_object *_obj, struct i915_vma *vma)
 {
 	struct xe_bo *obj = gem_to_xe_bo(_obj);
-	struct pci_dev *pdev = to_pci_dev(display->drm->dev);
+	struct pci_dev *pdev = to_pci_dev(drm->dev);
 
 	if (!(obj->flags & XE_BO_FLAG_SYSTEM)) {
 		if (obj->flags & XE_BO_FLAG_STOLEN)
diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
index 083c6904f8f1..8b0afa270216 100644
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -13,6 +13,8 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_probe_helper.h>
+#include <drm/intel/display_member.h>
+#include <drm/intel/display_parent_interface.h>
 #include <uapi/drm/xe_drm.h>
 
 #include "soc/intel_dram.h"
@@ -33,8 +35,12 @@
 #include "intel_hotplug.h"
 #include "intel_opregion.h"
 #include "skl_watermark.h"
+#include "xe_display_rpm.h"
 #include "xe_module.h"
 
+/* Ensure drm and display members are placed properly. */
+INTEL_DISPLAY_MEMBER_STATIC_ASSERT(struct xe_device, drm, display);
+
 /* Xe device functions */
 
 /**
@@ -510,6 +516,10 @@ static void display_device_remove(struct drm_device *dev, void *arg)
 	intel_display_device_remove(display);
 }
 
+static const struct intel_display_parent_interface parent = {
+	.rpm = &xe_display_rpm_interface,
+};
+
 /**
  * xe_display_probe - probe display and create display struct
  * @xe: XE device instance
@@ -530,7 +540,7 @@ int xe_display_probe(struct xe_device *xe)
 	if (!xe->info.probe_display)
 		goto no_display;
 
-	display = intel_display_device_probe(pdev);
+	display = intel_display_device_probe(pdev, &parent);
 	if (IS_ERR(display))
 		return PTR_ERR(display);
 
diff --git a/drivers/gpu/drm/xe/display/xe_display_rpm.c b/drivers/gpu/drm/xe/display/xe_display_rpm.c
index 3825376e98cc..340f65884812 100644
--- a/drivers/gpu/drm/xe/display/xe_display_rpm.c
+++ b/drivers/gpu/drm/xe/display/xe_display_rpm.c
@@ -1,73 +1,74 @@
 // SPDX-License-Identifier: MIT
 /* Copyright © 2025 Intel Corporation */
 
+#include <drm/intel/display_parent_interface.h>
+
 #include "intel_display_core.h"
 #include "intel_display_rpm.h"
 #include "xe_device.h"
 #include "xe_device_types.h"
 #include "xe_pm.h"
 
-static struct xe_device *display_to_xe(struct intel_display *display)
+static struct ref_tracker *xe_display_rpm_get(const struct drm_device *drm)
 {
-	return to_xe_device(display->drm);
+	return xe_pm_runtime_resume_and_get(to_xe_device(drm)) ? INTEL_WAKEREF_DEF : NULL;
 }
 
-struct ref_tracker *intel_display_rpm_get_raw(struct intel_display *display)
+static struct ref_tracker *xe_display_rpm_get_if_in_use(const struct drm_device *drm)
 {
-	return intel_display_rpm_get(display);
+	return xe_pm_runtime_get_if_in_use(to_xe_device(drm)) ? INTEL_WAKEREF_DEF : NULL;
 }
 
-void intel_display_rpm_put_raw(struct intel_display *display, struct ref_tracker *wakeref)
+static struct ref_tracker *xe_display_rpm_get_noresume(const struct drm_device *drm)
 {
-	intel_display_rpm_put(display, wakeref);
-}
-
-struct ref_tracker *intel_display_rpm_get(struct intel_display *display)
-{
-	return xe_pm_runtime_resume_and_get(display_to_xe(display)) ? INTEL_WAKEREF_DEF : NULL;
-}
-
-struct ref_tracker *intel_display_rpm_get_if_in_use(struct intel_display *display)
-{
-	return xe_pm_runtime_get_if_in_use(display_to_xe(display)) ? INTEL_WAKEREF_DEF : NULL;
-}
-
-struct ref_tracker *intel_display_rpm_get_noresume(struct intel_display *display)
-{
-	xe_pm_runtime_get_noresume(display_to_xe(display));
+	xe_pm_runtime_get_noresume(to_xe_device(drm));
 
 	return INTEL_WAKEREF_DEF;
 }
 
-void intel_display_rpm_put(struct intel_display *display, struct ref_tracker *wakeref)
+static void xe_display_rpm_put(const struct drm_device *drm, struct ref_tracker *wakeref)
 {
 	if (wakeref)
-		xe_pm_runtime_put(display_to_xe(display));
+		xe_pm_runtime_put(to_xe_device(drm));
 }
 
-void intel_display_rpm_put_unchecked(struct intel_display *display)
+static void xe_display_rpm_put_unchecked(const struct drm_device *drm)
 {
-	xe_pm_runtime_put(display_to_xe(display));
+	xe_pm_runtime_put(to_xe_device(drm));
 }
 
-bool intel_display_rpm_suspended(struct intel_display *display)
+static bool xe_display_rpm_suspended(const struct drm_device *drm)
 {
-	struct xe_device *xe = display_to_xe(display);
+	struct xe_device *xe = to_xe_device(drm);
 
 	return pm_runtime_suspended(xe->drm.dev);
 }
 
-void assert_display_rpm_held(struct intel_display *display)
+static void xe_display_rpm_assert_held(const struct drm_device *drm)
 {
 	/* FIXME */
 }
 
-void intel_display_rpm_assert_block(struct intel_display *display)
+static void xe_display_rpm_assert_block(const struct drm_device *drm)
 {
 	/* FIXME */
 }
 
-void intel_display_rpm_assert_unblock(struct intel_display *display)
+static void xe_display_rpm_assert_unblock(const struct drm_device *drm)
 {
 	/* FIXME */
 }
+
+const struct intel_display_rpm_interface xe_display_rpm_interface = {
+	.get = xe_display_rpm_get,
+	.get_raw = xe_display_rpm_get,
+	.get_if_in_use = xe_display_rpm_get_if_in_use,
+	.get_noresume = xe_display_rpm_get_noresume,
+	.put = xe_display_rpm_put,
+	.put_raw = xe_display_rpm_put,
+	.put_unchecked = xe_display_rpm_put_unchecked,
+	.suspended = xe_display_rpm_suspended,
+	.assert_held = xe_display_rpm_assert_held,
+	.assert_block = xe_display_rpm_assert_block,
+	.assert_unblock = xe_display_rpm_assert_unblock
+};
diff --git a/drivers/gpu/drm/xe/display/xe_display_rpm.h b/drivers/gpu/drm/xe/display/xe_display_rpm.h
new file mode 100644
index 000000000000..0bf9d31e87c1
--- /dev/null
+++ b/drivers/gpu/drm/xe/display/xe_display_rpm.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef _XE_DISPLAY_RPM_H_
+#define _XE_DISPLAY_RPM_H_
+
+extern const struct intel_display_rpm_interface xe_display_rpm_interface;
+
+#endif /* _XE_DISPLAY_RPM_H_ */
diff --git a/drivers/gpu/drm/xe/display/xe_stolen.c b/drivers/gpu/drm/xe/display/xe_stolen.c
new file mode 100644
index 000000000000..9f04ba36e930
--- /dev/null
+++ b/drivers/gpu/drm/xe/display/xe_stolen.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include "gem/i915_gem_stolen.h"
+#include "xe_res_cursor.h"
+#include "xe_ttm_stolen_mgr.h"
+#include "xe_validation.h"
+
+struct intel_stolen_node {
+	struct xe_device *xe;
+	struct xe_bo *bo;
+};
+
+int i915_gem_stolen_insert_node_in_range(struct intel_stolen_node *node, u64 size,
+					 unsigned int align, u64 start, u64 end)
+{
+	struct xe_device *xe = node->xe;
+
+	struct xe_bo *bo;
+	int err = 0;
+	u32 flags = XE_BO_FLAG_PINNED | XE_BO_FLAG_STOLEN;
+
+	if (start < SZ_4K)
+		start = SZ_4K;
+
+	if (align) {
+		size = ALIGN(size, align);
+		start = ALIGN(start, align);
+	}
+
+	bo = xe_bo_create_pin_range_novm(xe, xe_device_get_root_tile(xe),
+					 size, start, end, ttm_bo_type_kernel, flags);
+	if (IS_ERR(bo)) {
+		err = PTR_ERR(bo);
+		bo = NULL;
+		return err;
+	}
+
+	node->bo = bo;
+
+	return err;
+}
+
+int i915_gem_stolen_insert_node(struct intel_stolen_node *node, u64 size, unsigned int align)
+{
+	/* Not used on xe */
+	WARN_ON(1);
+
+	return -ENODEV;
+}
+
+void i915_gem_stolen_remove_node(struct intel_stolen_node *node)
+{
+	xe_bo_unpin_map_no_vm(node->bo);
+	node->bo = NULL;
+}
+
+bool i915_gem_stolen_initialized(struct drm_device *drm)
+{
+	struct xe_device *xe = to_xe_device(drm);
+
+	return ttm_manager_type(&xe->ttm, XE_PL_STOLEN);
+}
+
+bool i915_gem_stolen_node_allocated(const struct intel_stolen_node *node)
+{
+	return node->bo;
+}
+
+u32 i915_gem_stolen_node_offset(struct intel_stolen_node *node)
+{
+	struct xe_res_cursor res;
+
+	xe_res_first(node->bo->ttm.resource, 0, 4096, &res);
+	return res.start;
+}
+
+/* Used for < gen4. These are not supported by Xe */
+u64 i915_gem_stolen_area_address(struct drm_device *drm)
+{
+	WARN_ON(1);
+
+	return 0;
+}
+
+/* Used for gen9 specific WA. Gen9 is not supported by Xe */
+u64 i915_gem_stolen_area_size(struct drm_device *drm)
+{
+	WARN_ON(1);
+
+	return 0;
+}
+
+u64 i915_gem_stolen_node_address(struct intel_stolen_node *node)
+{
+	struct xe_device *xe = node->xe;
+
+	return xe_ttm_stolen_gpu_offset(xe) + i915_gem_stolen_node_offset(node);
+}
+
+u64 i915_gem_stolen_node_size(const struct intel_stolen_node *node)
+{
+	return node->bo->ttm.base.size;
+}
+
+struct intel_stolen_node *i915_gem_stolen_node_alloc(struct drm_device *drm)
+{
+	struct xe_device *xe = to_xe_device(drm);
+	struct intel_stolen_node *node;
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return NULL;
+
+	node->xe = xe;
+
+	return node;
+}
+
+void i915_gem_stolen_node_free(const struct intel_stolen_node *node)
+{
+	kfree(node);
+}
diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h
index dc17f63f9353..af0ce275b032 100644
--- a/drivers/gpu/drm/xe/xe_device_types.h
+++ b/drivers/gpu/drm/xe/xe_device_types.h
@@ -228,6 +228,11 @@ struct xe_device {
 	/** @drm: drm device */
 	struct drm_device drm;
 
+#if IS_ENABLED(CONFIG_DRM_XE_DISPLAY)
+	/** @display: display device data, must be placed after drm device member */
+	struct intel_display *display;
+#endif
+
 	/** @devcoredump: device coredump */
 	struct xe_devcoredump devcoredump;
 
@@ -632,8 +637,6 @@ struct xe_device {
 	 * drm_i915_private during build. After cleanup these should go away,
 	 * migrating to the right sub-structs
 	 */
-	struct intel_display *display;
-
 	const struct dram_info *dram_info;
 
 	/*
@@ -645,18 +648,9 @@ struct xe_device {
 	/* To shut up runtime pm macros.. */
 	struct xe_runtime_pm {} runtime_pm;
 
-	/* only to allow build, not used functionally */
-	u32 irq_mask;
-
 	struct intel_uncore {
 		spinlock_t lock;
 	} uncore;
-
-	/* only to allow build, not used functionally */
-	struct {
-		unsigned int hpll_freq;
-		unsigned int czclk_freq;
-	};
 #endif
 };
 
diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index 6e59642e7820..90e2ee5e9270 100644
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -442,6 +442,7 @@ static const struct pci_device_id pciidlist[] = {
 	INTEL_PTL_IDS(INTEL_VGA_DEVICE, &ptl_desc),
 	INTEL_NVLS_IDS(INTEL_VGA_DEVICE, &nvls_desc),
 	INTEL_CRI_IDS(INTEL_PCI_DEVICE, &cri_desc),
+	INTEL_WCL_IDS(INTEL_VGA_DEVICE, &ptl_desc),
 	{ }
 };
 MODULE_DEVICE_TABLE(pci, pciidlist);
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index cf318e3ddb5c..e4eebabab975 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -258,6 +258,8 @@
 # define DP_DSC_RC_BUF_BLK_SIZE_4           0x1
 # define DP_DSC_RC_BUF_BLK_SIZE_16          0x2
 # define DP_DSC_RC_BUF_BLK_SIZE_64          0x3
+# define DP_DSC_THROUGHPUT_MODE_0_DELTA_SHIFT 3 /* DP 2.1a, in units of 2 MPixels/sec */
+# define DP_DSC_THROUGHPUT_MODE_0_DELTA_MASK  (0x1f << DP_DSC_THROUGHPUT_MODE_0_DELTA_SHIFT)
 
 #define DP_DSC_RC_BUF_SIZE                  0x063
 
@@ -1686,6 +1688,7 @@ enum drm_dp_phy {
 #define DP_BRANCH_OUI_HEADER_SIZE	0xc
 #define DP_RECEIVER_CAP_SIZE		0xf
 #define DP_DSC_RECEIVER_CAP_SIZE        0x10 /* DSC Capabilities 0x60 through 0x6F */
+#define DP_DSC_BRANCH_CAP_SIZE		3
 #define EDP_PSR_RECEIVER_CAP_SIZE	2
 #define EDP_DISPLAY_CTL_CAP_SIZE	5
 #define DP_LTTPR_COMMON_CAP_SIZE	8
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index 52ce28097015..df2f24b950e4 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -211,6 +211,11 @@ u8 drm_dp_dsc_sink_max_slice_count(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
 u8 drm_dp_dsc_sink_line_buf_depth(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]);
 int drm_dp_dsc_sink_supported_input_bpcs(const u8 dsc_dpc[DP_DSC_RECEIVER_CAP_SIZE],
 					 u8 dsc_bpc[3]);
+int drm_dp_dsc_sink_max_slice_throughput(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
+					 int peak_pixel_rate, bool is_rgb_yuv444);
+int drm_dp_dsc_branch_max_overall_throughput(const u8 dsc_branch_dpcd[DP_DSC_BRANCH_CAP_SIZE],
+					     bool is_rgb_yuv444);
+int drm_dp_dsc_branch_max_line_width(const u8 dsc_branch_dpcd[DP_DSC_BRANCH_CAP_SIZE]);
 
 static inline bool
 drm_dp_sink_supports_dsc(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
@@ -828,6 +833,15 @@ enum drm_dp_quirk {
 	 * requires enabling DSC.
 	 */
 	DP_DPCD_QUIRK_HBLANK_EXPANSION_REQUIRES_DSC,
+	/**
+	 * @DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT:
+	 *
+	 * The device doesn't support DSC decompression at the maximum DSC
+	 * pixel throughput and compressed bpp it indicates via its DPCD DSC
+	 * capabilities. The compressed bpp must be limited above a device
+	 * specific DSC pixel throughput.
+	 */
+	DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT,
 };
 
 /**
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 2d2a0bd526cf..66278ffeebd6 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -317,6 +317,17 @@ struct drm_crtc_state {
 	 */
 	enum drm_scaling_filter scaling_filter;
 
+	/**
+	 * @sharpness_strength:
+	 *
+	 * Used by the user to set the sharpness intensity.
+	 * The value ranges from 0-255.
+	 * Default value is 0 which disable the sharpness feature.
+	 * Any value greater than 0 enables sharpening with the
+	 * specified strength.
+	 */
+	u8 sharpness_strength;
+
 	/**
 	 * @event:
 	 *
@@ -1088,6 +1099,12 @@ struct drm_crtc {
 	 */
 	struct drm_property *scaling_filter_property;
 
+	/**
+	 * @sharpness_strength_property: property to apply
+	 * the intensity of the sharpness requested.
+	 */
+	struct drm_property *sharpness_strength_property;
+
 	/**
 	 * @state:
 	 *
@@ -1324,4 +1341,5 @@ static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
 int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc,
 					    unsigned int supported_filters);
 bool drm_crtc_in_clone_mode(struct drm_crtc_state *crtc_state);
+int drm_crtc_create_sharpness_strength_property(struct drm_crtc *crtc);
 #endif /* __DRM_CRTC_H__ */
diff --git a/include/drm/intel/display_member.h b/include/drm/intel/display_member.h
new file mode 100644
index 000000000000..0319ea560b60
--- /dev/null
+++ b/include/drm/intel/display_member.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __DRM_INTEL_DISPLAY_H__
+#define __DRM_INTEL_DISPLAY_H__
+
+#include <linux/build_bug.h>
+#include <linux/stddef.h>
+#include <linux/stringify.h>
+
+#include <drm/drm_device.h>
+
+struct intel_display;
+
+/*
+ * A dummy device struct to define the relative offsets of drm and display
+ * members. With the members identically placed in struct drm_i915_private and
+ * struct xe_device, this allows figuring out the struct intel_display pointer
+ * without the definition of either driver specific structure.
+ */
+struct __intel_generic_device {
+	struct drm_device drm;
+	struct intel_display *display;
+};
+
+/**
+ * INTEL_DISPLAY_MEMBER_STATIC_ASSERT() - ensure correct placing of drm and display members
+ * @type: The struct to check
+ * @drm_member: Name of the struct drm_device member
+ * @display_member: Name of the struct intel_display * member.
+ *
+ * Use this static assert macro to ensure the struct drm_i915_private and struct
+ * xe_device struct drm_device and struct intel_display * members are at the
+ * same relative offsets.
+ */
+#define INTEL_DISPLAY_MEMBER_STATIC_ASSERT(type, drm_member, display_member) \
+	static_assert( \
+		offsetof(struct __intel_generic_device, display) - offsetof(struct __intel_generic_device, drm) == \
+		offsetof(type, display_member) - offsetof(type, drm_member), \
+		__stringify(type) " " __stringify(drm_member) " and " __stringify(display_member) " members at invalid offsets")
+
+#endif
diff --git a/include/drm/intel/display_parent_interface.h b/include/drm/intel/display_parent_interface.h
new file mode 100644
index 000000000000..26bedc360044
--- /dev/null
+++ b/include/drm/intel/display_parent_interface.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation x*/
+
+#ifndef __DISPLAY_PARENT_INTERFACE_H__
+#define __DISPLAY_PARENT_INTERFACE_H__
+
+#include <linux/types.h>
+
+struct drm_device;
+struct ref_tracker;
+
+struct intel_display_rpm_interface {
+	struct ref_tracker *(*get)(const struct drm_device *drm);
+	struct ref_tracker *(*get_raw)(const struct drm_device *drm);
+	struct ref_tracker *(*get_if_in_use)(const struct drm_device *drm);
+	struct ref_tracker *(*get_noresume)(const struct drm_device *drm);
+
+	void (*put)(const struct drm_device *drm, struct ref_tracker *wakeref);
+	void (*put_raw)(const struct drm_device *drm, struct ref_tracker *wakeref);
+	void (*put_unchecked)(const struct drm_device *drm);
+
+	bool (*suspended)(const struct drm_device *drm);
+	void (*assert_held)(const struct drm_device *drm);
+	void (*assert_block)(const struct drm_device *drm);
+	void (*assert_unblock)(const struct drm_device *drm);
+};
+
+/**
+ * struct intel_display_parent_interface - services parent driver provides to display
+ *
+ * The parent, or core, driver provides a pointer to this structure to display
+ * driver when calling intel_display_device_probe(). The display driver uses it
+ * to access services provided by the parent driver. The structure may contain
+ * sub-struct pointers to group function pointers by functionality.
+ *
+ * All function and sub-struct pointers must be initialized and callable unless
+ * explicitly marked as "optional" below. The display driver will only NULL
+ * check the optional pointers.
+ */
+struct intel_display_parent_interface {
+	/** @rpm: Runtime PM functions */
+	const struct intel_display_rpm_interface *rpm;
+};
+
+#endif
diff --git a/include/drm/intel/pciids.h b/include/drm/intel/pciids.h
index 6e53fb4cdd37..b258e79b437a 100644
--- a/include/drm/intel/pciids.h
+++ b/include/drm/intel/pciids.h
@@ -880,7 +880,10 @@
 	MACRO__(0xB08F, ## __VA_ARGS__), \
 	MACRO__(0xB090, ## __VA_ARGS__), \
 	MACRO__(0xB0A0, ## __VA_ARGS__), \
-	MACRO__(0xB0B0, ## __VA_ARGS__), \
+	MACRO__(0xB0B0, ## __VA_ARGS__)
+
+/* WCL */
+#define INTEL_WCL_IDS(MACRO__, ...) \
 	MACRO__(0xFD80, ## __VA_ARGS__), \
 	MACRO__(0xFD81, ## __VA_ARGS__)