diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 73e4a343735..ed679d04bbb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2854,6 +2854,10 @@ #define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 #define GEN7_WA_L3_CHICKEN_MODE 0x20000000 +/* WaCatErrorRejectionIssue */ +#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 +#define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) + /* PCH */ /* south display engine interrupt */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8e717c744bb..aac61b2849f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7470,6 +7470,11 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, GEN7_WA_L3_CHICKEN_MODE); + /* This is required by WaCatErrorRejectionIssue */ + I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, + I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | + GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); + for_each_pipe(pipe) I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | |