> Subject: [PATCH v3 14/16] drm/i915/display: convert W/As in intel_psr.c to new
> framework
> 
> Convert the low-hanging fruits of workaround checks to the workaround
> framework.  Instead of having display structure checks for the workarounds all
> over, concentrate the checks in intel_display_wa.c.

LGTM,
Reviewed-by: Suraj Kandpal <[email protected]>

> 
> Acked-by: Jani Nikula <[email protected]>
> Signed-off-by: Luca Coelho <[email protected]>
> ---
>  .../gpu/drm/i915/display/intel_display_wa.c   | 15 ++++++++++++--
>  .../gpu/drm/i915/display/intel_display_wa.h   |  4 ++++
>  drivers/gpu/drm/i915/display/intel_psr.c      | 20 ++++++++-----------
>  3 files changed, 25 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_wa.c
> b/drivers/gpu/drm/i915/display/intel_display_wa.c
> index da09873dc1cb..73c7b87d5ecd 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_wa.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_wa.c
> @@ -112,6 +112,13 @@ bool __intel_display_wa(struct intel_display *display,
> enum intel_display_wa wa,
>               return DISPLAY_VER(display) == 20;
>       case INTEL_DISPLAY_WA_15018326506:
>               return display->platform.battlemage;
> +     case INTEL_DISPLAY_WA_16011303918:
> +     case INTEL_DISPLAY_WA_22011320316:
> +             return display->platform.alderlake_p &&
> +                     IS_DISPLAY_STEP(display, STEP_A0, STEP_B0);
> +     case INTEL_DISPLAY_WA_16011181250:
> +             return display->platform.rocketlake || display-
> >platform.alderlake_s ||
> +                     display->platform.dg2;
>       case INTEL_DISPLAY_WA_16011342517:
>               return display->platform.alderlake_p &&
>                       IS_DISPLAY_STEP(display, STEP_A0, STEP_D0); @@ -
> 121,15 +128,19 @@ bool __intel_display_wa(struct intel_display *display,
> enum intel_display_wa wa,
>               return intel_display_needs_wa_16023588340(display);
>       case INTEL_DISPLAY_WA_16025573575:
>               return intel_display_needs_wa_16025573575(display);
> +     case INTEL_DISPLAY_WA_16025596647:
> +             return DISPLAY_VER(display) == 20 &&
> +                     IS_DISPLAY_VERx100_STEP(display, 3000,
> +                                             STEP_A0, STEP_B0);
>       case INTEL_DISPLAY_WA_18034343758:
>               return DISPLAY_VER(display) == 20 ||
>                       (display->platform.pantherlake &&
>                        IS_DISPLAY_STEP(display, STEP_A0, STEP_B0));
>       case INTEL_DISPLAY_WA_22010178259:
>               return DISPLAY_VER(display) == 12;
> -     case INTEL_DISPLAY_WA_22011320316:
> +     case INTEL_DISPLAY_WA_22012278275:
>               return display->platform.alderlake_p &&
> -                     IS_DISPLAY_STEP(display, STEP_A0, STEP_B0);
> +                     IS_DISPLAY_STEP(display, STEP_A0, STEP_E0);
>       case INTEL_DISPLAY_WA_22014263786:
>               return IS_DISPLAY_VERx100(display, 1100, 1400);
>       case INTEL_DISPLAY_WA_22021048059:
> diff --git a/drivers/gpu/drm/i915/display/intel_display_wa.h
> b/drivers/gpu/drm/i915/display/intel_display_wa.h
> index 4471d6511152..0e9959760b9f 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_wa.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_wa.h
> @@ -44,13 +44,17 @@ enum intel_display_wa {
>       INTEL_DISPLAY_WA_14025769978,
>       INTEL_DISPLAY_WA_15013987218,
>       INTEL_DISPLAY_WA_15018326506,
> +     INTEL_DISPLAY_WA_16011181250,
> +     INTEL_DISPLAY_WA_16011303918,
>       INTEL_DISPLAY_WA_16011342517,
>       INTEL_DISPLAY_WA_16011863758,
>       INTEL_DISPLAY_WA_16023588340,
>       INTEL_DISPLAY_WA_16025573575,
> +     INTEL_DISPLAY_WA_16025596647,
>       INTEL_DISPLAY_WA_18034343758,
>       INTEL_DISPLAY_WA_22010178259,
>       INTEL_DISPLAY_WA_22011320316,
> +     INTEL_DISPLAY_WA_22012278275,
>       INTEL_DISPLAY_WA_22012358565,
>       INTEL_DISPLAY_WA_22014263786,
>       INTEL_DISPLAY_WA_22021048059,
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index 5bea2eda744b..95c66ce46513 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -40,6 +40,7 @@
>  #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"
>  #include "intel_dp_aux.h"
> @@ -1082,7 +1083,7 @@ static void hsw_activate_psr2(struct intel_dp
> *intel_dp)
>       }
> 
>       /* Wa_22012278275:adl-p */
> -     if (display->platform.alderlake_p && IS_DISPLAY_STEP(display,
> STEP_A0, STEP_E0)) {
> +     if (intel_display_wa(display, INTEL_DISPLAY_WA_22012278275)) {
>               static const u8 map[] = {
>                       2, /* 5 lines */
>                       1, /* 6 lines */
> @@ -1263,7 +1264,7 @@ tgl_dc3co_exitline_compute_config(struct intel_dp
> *intel_dp,
>               return;
> 
>       /* Wa_16011303918:adl-p */
> -     if (display->platform.alderlake_p && IS_DISPLAY_STEP(display,
> STEP_A0, STEP_B0))
> +     if (intel_display_wa(display, INTEL_DISPLAY_WA_16011303918))
>               return;
> 
>       /*
> @@ -1540,8 +1541,7 @@ static bool intel_psr2_config_valid(struct intel_dp
> *intel_dp,
>       }
> 
>       /* Wa_16011181250 */
> -     if (display->platform.rocketlake || display->platform.alderlake_s ||
> -         display->platform.dg2) {
> +     if (intel_display_wa(display, INTEL_DISPLAY_WA_16011181250)) {
>               drm_dbg_kms(display->drm,
>                           "PSR2 is defeatured for this platform\n");
>               return false;
> @@ -1823,8 +1823,7 @@ void intel_psr_set_non_psr_pipes(struct intel_dp
> *intel_dp,
>       u8 active_pipes = 0;
> 
>       /* Wa_16025596647 */
> -     if (DISPLAY_VER(display) != 20 &&
> -         !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
> +     if (!intel_display_wa(display, INTEL_DISPLAY_WA_16025596647))
>               return;
> 
>       /* Not needed by Panel Replay  */
> @@ -3973,8 +3972,7 @@ static void psr_dc5_dc6_wa_work(struct work_struct
> *work)
>   */
>  void intel_psr_notify_dc5_dc6(struct intel_display *display)  {
> -     if (DISPLAY_VER(display) != 20 &&
> -         !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
> +     if (!intel_display_wa(display, INTEL_DISPLAY_WA_16025596647))
>               return;
> 
>       schedule_work(&display->psr_dc5_dc6_wa_work);
> @@ -3989,8 +3987,7 @@ void intel_psr_notify_dc5_dc6(struct intel_display
> *display)
>   */
>  void intel_psr_dc5_dc6_wa_init(struct intel_display *display)  {
> -     if (DISPLAY_VER(display) != 20 &&
> -         !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
> +     if (!intel_display_wa(display, INTEL_DISPLAY_WA_16025596647))
>               return;
> 
>       INIT_WORK(&display->psr_dc5_dc6_wa_work,
> psr_dc5_dc6_wa_work); @@ -4011,8 +4008,7 @@ void
> intel_psr_notify_pipe_change(struct intel_atomic_state *state,
>       struct intel_display *display = to_intel_display(state);
>       struct intel_encoder *encoder;
> 
> -     if (DISPLAY_VER(display) != 20 &&
> -         !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
> +     if (!intel_display_wa(display, INTEL_DISPLAY_WA_16025596647))
>               return;
> 
>       for_each_intel_encoder_with_psr(display->drm, encoder) {
> --
> 2.51.0

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