drm/i915/dg2: Drop pre-production display workarounds

All production DG2 cards have display stepping C0 or later.  We can drop
Wa_14013215631 (only applies to pre-C0) and make Wa_14010547955
unconditional (applies to everything B0 and beyond).  Also drop the
now-unused IS_DG2_DISPLAY_STEP macro.

Bspec: 44477
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230816214201.534095-9-matthew.d.roper@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 763ab56..8c81206 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -726,7 +726,7 @@ static void icl_set_pipe_chicken(const struct intel_crtc_state *crtc_state)
                tmp |= UNDERRUN_RECOVERY_DISABLE_ADLP;
 
        /* Wa_14010547955:dg2 */
-       if (IS_DG2_DISPLAY_STEP(dev_priv, STEP_B0, STEP_FOREVER))
+       if (IS_DG2(dev_priv))
                tmp |= DG2_RENDER_CCSTAG_4_3_EN;
 
        intel_de_write(dev_priv, PIPE_CHICKEN(pipe), tmp);

diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index ffc15d2..a408ec2 100644 (file)
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -2203,10 +2203,6 @@ static bool gen12_plane_has_mc_ccs(struct drm_i915_private *i915,
        if (IS_ALDERLAKE_P(i915) && IS_DISPLAY_STEP(i915, STEP_A0, STEP_B0))
                return false;
 
-       /* Wa_14013215631 */
-       if (IS_DG2_DISPLAY_STEP(i915, STEP_A0, STEP_C0))
-               return false;
-
        return plane_id < PLANE_SPRITE4;
 }
 

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7a8ce72..7f8fa0e 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -689,10 +689,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
        (IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
         IS_GRAPHICS_STEP(__i915, since, until))
 
-#define IS_DG2_DISPLAY_STEP(__i915, since, until) \
-       (IS_DG2(__i915) && \
-        IS_DISPLAY_STEP(__i915, since, until))
-
 #define IS_PVC_BD_STEP(__i915, since, until) \
        (IS_PONTEVECCHIO(__i915) && \
         IS_BASEDIE_STEP(__i915, since, until))