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| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2016-06-07 17:19:19 +0300 |
|---|---|---|
| committer | Mika Kuoppala <mika.kuoppala@intel.com> | 2016-07-15 15:51:29 +0300 |
| commit | a89bd7beb1791ad5ed634989b14c764114a68e53 (patch) | |
| tree | 7cd10d7163086d87d9f2f7884050967549e1f85b /drivers/gpu | |
| parent | c584e2d38fb84513944feeb25072dd8b17a6d3b6 (diff) | |
| download | linux-a89bd7beb1791ad5ed634989b14c764114a68e53.tar.bz2 | |
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
(cherry picked from commit d1b4eefdea6d63aa15321f539feec298d8aefdc1)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 3b374284f739..b2fbbfa07eda 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2206,6 +2206,7 @@ enum skl_disp_power_wells { #define ILK_DPFC_STATUS _MMIO(0x43210) #define ILK_DPFC_FENCE_YOFF _MMIO(0x43218) #define ILK_DPFC_CHICKEN _MMIO(0x43224) +#define ILK_DPFC_DISABLE_DUMMY0 (1<<8) #define ILK_DPFC_NUKE_ON_ANY_MODIFICATION (1<<23) #define ILK_FBC_RT_BASE _MMIO(0x2128) #define ILK_FBC_RT_VALID (1<<0) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 074d6a53cc3e..2863b92c9da6 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -74,6 +74,10 @@ 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) |