diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-02-27 21:59:01 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-03-05 21:30:33 +0100 |
| commit | 295e8bb73a4785b65db6655fbf6ad57c4177b551 (patch) | |
| tree | 41ea6b94bc65c324d9feafd33efc0206479ae90a /drivers/gpu | |
| parent | 619d4d04723346bf6ca3273668e0ba2582e8de36 (diff) | |
drm/i915: Disable semaphore wait event idle message on BDW
According to BSpec we need to always set this magic bit in ring buffer
mode.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index aa8390978e6..d11a9ea5884 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -949,6 +949,9 @@ #define GEN6_BLITTER_LOCK_SHIFT 16 #define GEN6_BLITTER_FBC_NOTIFY (1<<3) +#define GEN6_RC_SLEEP_PSMI_CONTROL 0x2050 +#define GEN8_RC_SEMA_IDLE_MSG_DISABLE (1 << 12) + #define GEN6_BSD_SLEEP_PSMI_CONTROL 0x12050 #define GEN6_BSD_SLEEP_MSG_DISABLE (1 << 0) #define GEN6_BSD_SLEEP_FLUSH_DISABLE (1 << 2) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index bb2ca355c1b..739eabc814e 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4867,6 +4867,9 @@ static void gen8_init_clock_gating(struct drm_device *dev) */ I915_WRITE(GEN7_GT_MODE, GEN6_WIZ_HASHING_MASK | GEN6_WIZ_HASHING_16x4); + + I915_WRITE(GEN6_RC_SLEEP_PSMI_CONTROL, + _MASKED_BIT_ENABLE(GEN8_RC_SEMA_IDLE_MSG_DISABLE)); } static void haswell_init_clock_gating(struct drm_device *dev) |