accel/amdxdna: Update firmware version check for latest firmware

The latest firmware increases the major version number. Update
aie2_check_protocol() to accept and support the new firmware version.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20251219014356.2234241-2-lizhi.hou@amd.com

drivers/accel/amdxdna/aie2_pci.c

@@ -56,41 +56,23 @@ struct mgmt_mbox_chann_info {
 static int aie2_check_protocol(struct amdxdna_dev_hdl *ndev, u32 fw_major, u32 fw_minor)
 {
 	const struct aie2_fw_feature_tbl *feature;
-	struct amdxdna_dev *xdna = ndev->xdna;
+	bool found = false;
 
-	/*
+	for (feature = ndev->priv->fw_feature_tbl; feature->major; feature++) {
-	 * The driver supported mailbox behavior is defined by
+		if (feature->major != fw_major)
-	 * ndev->priv->protocol_major and protocol_minor.
+			continue;
-	 *
-	 * When protocol_major and fw_major are different, it means driver
-	 * and firmware are incompatible.
-	 */
-	if (ndev->priv->protocol_major != fw_major) {
-		XDNA_ERR(xdna, "Incompatible firmware protocol major %d minor %d",
-			 fw_major, fw_minor);
-		return -EINVAL;
-	}
-
-	/*
-	 * When protocol_minor is greater then fw_minor, that means driver
-	 * relies on operation the installed firmware does not support.
-	 */
-	if (ndev->priv->protocol_minor > fw_minor) {
-		XDNA_ERR(xdna, "Firmware minor version smaller than supported");
-		return -EINVAL;
-	}
-
-	for (feature = ndev->priv->fw_feature_tbl; feature && feature->min_minor;
-	     feature++) {
 		if (fw_minor < feature->min_minor)
 			continue;
 		if (feature->max_minor > 0 && fw_minor > feature->max_minor)
 			continue;
 
-		set_bit(feature->feature, &ndev->feature_mask);
+		ndev->feature_mask |= feature->features;
+
+		/* firmware version matches one of the driver support entry */
+		found = true;
 	}
 
-	return 0;
+	return found ? 0 : -EOPNOTSUPP;
 }
 
 static void aie2_dump_chann_info_debug(struct amdxdna_dev_hdl *ndev)

drivers/accel/amdxdna/aie2_pci.h

@@ -237,7 +237,8 @@ enum aie2_fw_feature {
 };
 
 struct aie2_fw_feature_tbl {
-	enum aie2_fw_feature feature;
+	u64 features;
+	u32 major;
 	u32 max_minor;
 	u32 min_minor;
 };
@@ -246,8 +247,6 @@ struct aie2_fw_feature_tbl {
 
 struct amdxdna_dev_priv {
 	const char			*fw_path;
-	u64				protocol_major;
-	u64				protocol_minor;
 	const struct rt_config		*rt_config;
 	const struct dpm_clk_freq	*dpm_clk_tbl;
 	const struct aie2_fw_feature_tbl *fw_feature_tbl;

drivers/accel/amdxdna/npu1_regs.c

@@ -6,6 +6,7 @@
 #include <drm/amdxdna_accel.h>
 #include <drm/drm_device.h>
 #include <drm/gpu_scheduler.h>
+#include <linux/bits.h>
 #include <linux/sizes.h>
 
 #include "aie2_pci.h"
@@ -65,14 +66,13 @@ const struct dpm_clk_freq npu1_dpm_clk_table[] = {
 };
 
 static const struct aie2_fw_feature_tbl npu1_fw_feature_table[] = {
-	{ .feature = AIE2_NPU_COMMAND, .min_minor = 8 },
+	{ .major = 5, .min_minor = 7 },
+	{ .features = BIT_U64(AIE2_NPU_COMMAND), .min_minor = 8 },
 	{ 0 }
 };
 
 static const struct amdxdna_dev_priv npu1_dev_priv = {
 	.fw_path        = "amdnpu/1502_00/npu.sbin",
-	.protocol_major = 0x5,
-	.protocol_minor = 0x7,
 	.rt_config	= npu1_default_rt_cfg,
 	.dpm_clk_tbl	= npu1_dpm_clk_table,
 	.fw_feature_tbl = npu1_fw_feature_table,

drivers/accel/amdxdna/npu4_regs.c

@@ -6,6 +6,7 @@
 #include <drm/amdxdna_accel.h>
 #include <drm/drm_device.h>
 #include <drm/gpu_scheduler.h>
+#include <linux/bits.h>
 #include <linux/sizes.h>
 
 #include "aie2_pci.h"
@@ -88,16 +89,16 @@ const struct dpm_clk_freq npu4_dpm_clk_table[] = {
 };
 
 const struct aie2_fw_feature_tbl npu4_fw_feature_table[] = {
-	{ .feature = AIE2_NPU_COMMAND, .min_minor = 15 },
+	{ .major = 6, .min_minor = 12 },
-	{ .feature = AIE2_PREEMPT, .min_minor = 12 },
+	{ .features = BIT_U64(AIE2_NPU_COMMAND), .major = 6, .min_minor = 15 },
-	{ .feature = AIE2_TEMPORAL_ONLY, .min_minor = 12 },
+	{ .features = BIT_U64(AIE2_PREEMPT), .major = 6, .min_minor = 12 },
+	{ .features = BIT_U64(AIE2_TEMPORAL_ONLY), .major = 6, .min_minor = 12 },
+	{ .features = GENMASK_ULL(AIE2_TEMPORAL_ONLY, AIE2_NPU_COMMAND), .major = 7 },
 	{ 0 }
 };
 
 static const struct amdxdna_dev_priv npu4_dev_priv = {
 	.fw_path        = "amdnpu/17f0_10/npu.sbin",
-	.protocol_major = 0x6,
-	.protocol_minor = 12,
 	.rt_config	= npu4_default_rt_cfg,
 	.dpm_clk_tbl	= npu4_dpm_clk_table,
 	.fw_feature_tbl = npu4_fw_feature_table,

drivers/accel/amdxdna/npu5_regs.c

@@ -64,8 +64,6 @@
 
 static const struct amdxdna_dev_priv npu5_dev_priv = {
 	.fw_path        = "amdnpu/17f0_11/npu.sbin",
-	.protocol_major = 0x6,
-	.protocol_minor = 12,
 	.rt_config	= npu4_default_rt_cfg,
 	.dpm_clk_tbl	= npu4_dpm_clk_table,
 	.fw_feature_tbl = npu4_fw_feature_table,

drivers/accel/amdxdna/npu6_regs.c

@@ -64,8 +64,6 @@
 
 static const struct amdxdna_dev_priv npu6_dev_priv = {
 	.fw_path        = "amdnpu/17f0_10/npu.sbin",
-	.protocol_major = 0x6,
-	.protocol_minor = 12,
 	.rt_config	= npu4_default_rt_cfg,
 	.dpm_clk_tbl	= npu4_dpm_clk_table,
 	.fw_feature_tbl = npu4_fw_feature_table,