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| author | Ville Syrjälä | 2014-02-27 20:59:02 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2014-03-05 21:30:33 +0100 |
| commit | 4f1ca9e94057de098d65bc7477e8f89dd51609aa (patch) | |
| tree | 96b264505b41134772a8f396ac2080eb45b77c70 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915: Disable semaphore wait event idle message on BDW (diff) | |
| download | kernel-qcow2-linux-4f1ca9e94057de098d65bc7477e8f89dd51609aa.tar.gz kernel-qcow2-linux-4f1ca9e94057de098d65bc7477e8f89dd51609aa.tar.xz kernel-qcow2-linux-4f1ca9e94057de098d65bc7477e8f89dd51609aa.zip | |
drm/i915: Implement WaDisableSDEUnitClockGating:bdw
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 739eabc814e9..5819f5c92554 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4870,6 +4870,10 @@ static void gen8_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN6_RC_SLEEP_PSMI_CONTROL, _MASKED_BIT_ENABLE(GEN8_RC_SEMA_IDLE_MSG_DISABLE)); + + /* WaDisableSDEUnitClockGating:bdw */ + I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) | + GEN8_SDEUNIT_CLOCK_GATE_DISABLE); } static void haswell_init_clock_gating(struct drm_device *dev) |