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| author | Mika Kuoppala | 2016-06-07 16:19:19 +0200 |
|---|---|---|
| committer | Mika Kuoppala | 2016-06-08 15:27:07 +0200 |
| commit | d1b4eefdea6d63aa15321f539feec298d8aefdc1 (patch) | |
| tree | 26a95addfdd22f6c0d8a8b61d3aceb6fa7a548b1 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i195/fbc: Add WaFbcNukeOnHostModify (diff) | |
| download | kernel-qcow2-linux-d1b4eefdea6d63aa15321f539feec298d8aefdc1.tar.gz kernel-qcow2-linux-d1b4eefdea6d63aa15321f539feec298d8aefdc1.tar.xz kernel-qcow2-linux-d1b4eefdea6d63aa15321f539feec298d8aefdc1.zip | |
drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance
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
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 1464d7ba69d4..658a75659657 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -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) |