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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>
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@ -949,6 +949,9 @@
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#define GEN6_BLITTER_LOCK_SHIFT 16
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#define GEN6_BLITTER_FBC_NOTIFY (1<<3)
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#define GEN6_RC_SLEEP_PSMI_CONTROL 0x2050
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#define GEN8_RC_SEMA_IDLE_MSG_DISABLE (1 << 12)
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#define GEN6_BSD_SLEEP_PSMI_CONTROL 0x12050
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#define GEN6_BSD_SLEEP_MSG_DISABLE (1 << 0)
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#define GEN6_BSD_SLEEP_FLUSH_DISABLE (1 << 2)
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@ -4867,6 +4867,9 @@ static void gen8_init_clock_gating(struct drm_device *dev)
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*/
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I915_WRITE(GEN7_GT_MODE,
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GEN6_WIZ_HASHING_MASK | GEN6_WIZ_HASHING_16x4);
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I915_WRITE(GEN6_RC_SLEEP_PSMI_CONTROL,
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_MASKED_BIT_ENABLE(GEN8_RC_SEMA_IDLE_MSG_DISABLE));
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}
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static void haswell_init_clock_gating(struct drm_device *dev)
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