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drm/i915: Limit WaFbcHighMemBwCorruptionAvoidance to skl and bxt

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Supposedly only skl/bxt need WaFbcHighMemBwCorruptionAvoidance.
Do not apply to the other gen9 platforms.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708131223.9519-3-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Ville Syrjälä 2020-07-08 16:12:22 +03:00
parent c4615b2b4f
commit cd7a88113d
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/i915/intel_pm.c
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@ -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)