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>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 65b5682..495ac17 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6897,6 +6897,7 @@
#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 64bc77e..920872a 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -134,6 +134,12 @@
*/
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)