From: Ville Syrjälä <[email protected]> Supposedly only skl/bxt need WaFbcHighMemBwCorruptionAvoidance. Do not apply to the other gen9 platforms.
Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/intel_pm.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 8760e1ba1eee..7b98d0eb8597 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -98,10 +98,6 @@ static void gen9_init_clock_gating(struct drm_i915_private *dev_priv) I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) | DISP_FBC_MEMORY_WAKE); - /* WaFbcHighMemBwCorruptionAvoidance:skl,bxt,kbl,cfl */ - I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) | - ILK_DPFC_DISABLE_DUMMY0); - if (IS_SKYLAKE(dev_priv)) { /* WaDisableDopClockGating */ I915_WRITE(GEN7_MISCCPCTL, I915_READ(GEN7_MISCCPCTL) @@ -142,6 +138,10 @@ static void bxt_init_clock_gating(struct drm_i915_private *dev_priv) /* WaFbcTurnOffFbcWatermark:bxt */ I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS); + + /* WaFbcHighMemBwCorruptionAvoidance:bxt */ + I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) | + ILK_DPFC_DISABLE_DUMMY0); } static void glk_init_clock_gating(struct drm_i915_private *dev_priv) @@ -7238,6 +7238,10 @@ static void skl_init_clock_gating(struct drm_i915_private *dev_priv) /* WaFbcNukeOnHostModify:skl */ I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) | ILK_DPFC_NUKE_ON_ANY_MODIFICATION); + + /* WaFbcHighMemBwCorruptionAvoidance:skl */ + I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) | + ILK_DPFC_DISABLE_DUMMY0); } static void bdw_init_clock_gating(struct drm_i915_private *dev_priv) -- 2.26.2 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
