diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 12 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index ffe8874..f5701ff 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4113,8 +4113,14 @@ # define CHICKEN3_DGMG_DONE_FIX_DISABLE (1 << 2) #define CHICKEN_PAR1_1 0x42080 +#define DPA_MASK_VBLANK_SRD (1 << 15) #define FORCE_ARB_IDLE_PLANES (1 << 14) +#define _CHICKEN_PIPESL_1_A 0x420b0 +#define _CHICKEN_PIPESL_1_B 0x420b4 +#define DPRS_MASK_VBLANK_SRD (1 << 0) +#define CHICKEN_PIPESL_1(pipe) _PIPE(pipe, _CHICKEN_PIPESL_1_A, _CHICKEN_PIPESL_1_B) + #define DISP_ARB_CTL 0x45000 #define DISP_TILE_SURFACE_SWIZZLING (1<<13) #define DISP_FBC_WM_DIS (1<<15) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a35ebcf..6d18675 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5277,6 +5277,7 @@ static void lpt_suspend_hw(struct drm_device *dev) static void gen8_init_clock_gating(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + enum pipe i; I915_WRITE(WM3_LP_ILK, 0); I915_WRITE(WM2_LP_ILK, 0); @@ -5287,6 +5288,17 @@ static void gen8_init_clock_gating(struct drm_device *dev) /* WaSwitchSolVfFArbitrationPriority */ I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL); + + /* WaPsrDPAMaskVBlankInSRD */ + I915_WRITE(CHICKEN_PAR1_1, + I915_READ(CHICKEN_PAR1_1) | DPA_MASK_VBLANK_SRD); + + /* WaPsrDPRSUnmaskVBlankInSRD */ + for_each_pipe(i) { + I915_WRITE(CHICKEN_PIPESL_1(i), + I915_READ(CHICKEN_PIPESL_1(i) | + DPRS_MASK_VBLANK_SRD)); + } } static void haswell_init_clock_gating(struct drm_device *dev) |
