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| author | Arun Siluvery <arun.siluvery@linux.intel.com> | 2015-09-08 10:31:49 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-09-14 11:12:28 +0200 |
| commit | 5b88abacd4820c66bc347a6beeb3d6ad1144544b (patch) | |
| tree | 10ae339ddc5b975846aecb2c74f5322262f19241 | |
| parent | 8c761609ec3beca88819e28d4fcf333b579d29b4 (diff) | |
| download | lwn-5b88abacd4820c66bc347a6beeb3d6ad1144544b.tar.gz lwn-5b88abacd4820c66bc347a6beeb3d6ad1144544b.zip | |
drm/i915/bxt: Add WaSetClckGatingDisableMedia
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 65b5682b19ac..495ac17b04c7 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -6897,6 +6897,7 @@ enum skl_disp_power_wells { #define GEN7_DOP_CLOCK_GATE_ENABLE (1<<0) #define GEN8_DOP_CLOCK_GATE_CFCLK_ENABLE (1<<2) #define GEN8_DOP_CLOCK_GATE_GUC_ENABLE (1<<4) +#define GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE (1<<6) #define GEN8_GARBCNTL 0xB004 #define GEN9_GAPS_TSV_CREDIT_DISABLE (1<<7) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 64bc77ef6b2e..920872acf4db 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -134,6 +134,12 @@ static void bxt_init_clock_gating(struct drm_device *dev) */ I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_TLBPF); } + + /* WaSetClckGatingDisableMedia:bxt */ + if (INTEL_REVID(dev) == BXT_REVID_A0) { + I915_WRITE(GEN7_MISCCPCTL, (I915_READ(GEN7_MISCCPCTL) & + ~GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE)); + } } static void i915_pineview_get_mem_freq(struct drm_device *dev) |