diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index a22745855740..21e69cab6efe 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1150,6 +1150,7 @@ enum skl_disp_power_wells { /* control register for cpu gtt access */ #define TILECTL 0x101000 #define TILECTL_SWZCTL (1 << 0) +#define TILECTL_TLBPF (1 << 1) #define TILECTL_TLB_PREFETCH_DIS (1 << 2) #define TILECTL_BACKSNOOP_DIS (1 << 3) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 07b3780677c9..472463806759 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -110,6 +110,8 @@ static void bxt_init_clock_gating(struct drm_device *dev) GEN8_SDEUNIT_CLOCK_GATE_DISABLE | GEN8_HDCUNIT_CLOCK_GATE_DISABLE_HDCREQ); + /* FIXME: apply on A0 only */ + I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_TLBPF); } static void i915_pineview_get_mem_freq(struct drm_device *dev) |
