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drm/i915/psr: Add enable_panel_replay module parameter

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Add new module parameter enable_panel_replay. This can be used to
enable/disable Panel Replay. 0=disabled, 1=enabled. -1=use per-chip default
(default).

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250715105509.4146806-4-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2025-07-15 13:55:09 +03:00
parent 8b6c828bb7
commit f9cc4616ba
3 changed files with 8 additions and 1 deletions
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3
drivers/gpu/drm/i915/display/intel_display_params.c
View file

@ -120,6 +120,9 @@ intel_display_param_named_unsafe(enable_psr, int, 0400,
"(0=disabled, 1=enable up to PSR1, 2=enable up to PSR2) "
"Default: -1 (use per-chip default)");
intel_display_param_named_unsafe(enable_panel_replay, int, 0400,
"Enable Panel Replay (0=disabled, 1=enabled). Default: -1 (use per-chip default)");
intel_display_param_named(psr_safest_params, bool, 0400,
"Replace PSR VBT parameters by the safest and not optimal ones. This "
"is helpful to detect if PSR issues are related to bad values set in "

1
drivers/gpu/drm/i915/display/intel_display_params.h
View file

@ -46,6 +46,7 @@ struct drm_printer;
param(bool, enable_dp_mst, true, 0600) \
param(int, enable_fbc, -1, 0600) \
param(int, enable_psr, -1, 0600) \
param(int, enable_panel_replay, -1, 0600) \
param(bool, psr_safest_params, false, 0400) \
param(bool, enable_psr2_sel_fetch, true, 0400) \
param(int, enable_dmc_wl, -1, 0400) \

5
drivers/gpu/drm/i915/display/intel_psr.c
View file

@ -259,7 +259,10 @@ static bool sel_update_global_enabled(struct intel_dp *intel_dp)
static bool panel_replay_global_enabled(struct intel_dp *intel_dp)
{
return !(intel_dp->psr.debug & I915_PSR_DEBUG_PANEL_REPLAY_DISABLE);
struct intel_display *display = to_intel_display(intel_dp);
return !(intel_dp->psr.debug & I915_PSR_DEBUG_PANEL_REPLAY_DISABLE) &&
display->params.enable_panel_replay;
}
static u32 psr_irq_psr_error_bit_get(struct intel_dp *intel_dp)