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drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance

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Add this fbc related workaround for all gen9

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465309159-30531-28-git-send-email-mika.kuoppala@intel.com
This commit is contained in:
Mika Kuoppala
2016-06-07 17:19:19 +03:00
committed by Mika Kuoppala
parent 031cd8c85a
commit d1b4eefdea
2 changed files with 5 additions and 0 deletions
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4
drivers/gpu/drm/i915/intel_pm.c
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@@ -75,6 +75,10 @@ static void gen9_init_clock_gating(struct drm_device *dev)
I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
DISP_FBC_WM_DIS |
DISP_FBC_MEMORY_WAKE);
/* WaFbcHighMemBwCorruptionAvoidance:skl,bxt,kbl */
I915_WRITE(ILK_DPFC_CHICKEN, I915_READ(ILK_DPFC_CHICKEN) |
ILK_DPFC_DISABLE_DUMMY0);
}
static void bxt_init_clock_gating(struct drm_device *dev)