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| author | Damien Lespiau <damien.lespiau@intel.com> | 2015-02-09 19:33:20 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-02-13 23:28:36 +0100 |
| commit | 2caa3b260aa6a3d015352c07d1bce1461825fa6c (patch) | |
| tree | 4148e39ea28bf1b9cec9fd721741cfc5feca216d /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 81e231afe7478f1bf14bbb17c26d6ebf054faece (diff) | |
| download | lwn-2caa3b260aa6a3d015352c07d1bce1461825fa6c.tar.gz lwn-2caa3b260aa6a3d015352c07d1bce1461825fa6c.zip | |
drm/i915/skl: Implement WaDisableChickenBitTSGBarrierAckForFFSliceCS
Signed-off-by: Damien Lespiau <damien.lespiau@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 | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a2b9c3e213f9..325f640c16c4 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -66,11 +66,16 @@ static void skl_init_clock_gating(struct drm_device *dev) GEN8_SDEUNIT_CLOCK_GATE_DISABLE); } - if (INTEL_REVID(dev) <= SKL_REVID_D0) + if (INTEL_REVID(dev) <= SKL_REVID_D0) { /* WaDisableHDCInvalidation:skl */ I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | BDW_DISABLE_HDC_INVALIDATION); + /* WaDisableChickenBitTSGBarrierAckForFFSliceCS:skl */ + I915_WRITE(FF_SLICE_CS_CHICKEN2, + I915_READ(FF_SLICE_CS_CHICKEN2) | + GEN9_TSG_BARRIER_ACK_DISABLE); + } if (INTEL_REVID(dev) <= SKL_REVID_E0) /* WaDisableLSQCROPERFforOCL:skl */ |