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| author | Imre Deak | 2015-03-11 10:10:27 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2015-04-14 13:55:21 +0200 |
| commit | 32608ca255ef0da1a70239a731a1fcdbb212d3f2 (patch) | |
| tree | bd5bf21a44dc20254420e6f8c190b2615f8392bf /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915/bxt: add bxt_init_clock_gating (diff) | |
| download | kernel-qcow2-linux-32608ca255ef0da1a70239a731a1fcdbb212d3f2.tar.gz kernel-qcow2-linux-32608ca255ef0da1a70239a731a1fcdbb212d3f2.tar.xz kernel-qcow2-linux-32608ca255ef0da1a70239a731a1fcdbb212d3f2.zip | |
drm/i915/bxt: add GEN8_SDEUNIT_CLOCK_GATE_DISABLE workaround
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
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 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 767a3e2ffdd1..a3247e83b072 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -96,7 +96,18 @@ static void skl_init_clock_gating(struct drm_device *dev) static void bxt_init_clock_gating(struct drm_device *dev) { + struct drm_i915_private *dev_priv = dev->dev_private; + gen9_init_clock_gating(dev); + + /* + * FIXME: + * GEN8_SDEUNIT_CLOCK_GATE_DISABLE applies on A0 only. + */ + /* WaDisableSDEUnitClockGating:bxt */ + I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) | + GEN8_SDEUNIT_CLOCK_GATE_DISABLE); + } static void i915_pineview_get_mem_freq(struct drm_device *dev) |