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| author | Jesse Barnes | 2012-10-25 21:15:43 +0200 |
|---|---|---|
| committer | Daniel Vetter | 2012-11-11 23:51:35 +0100 |
| commit | 5c9664d75a65adcdb9763a6df1da1d8d3f417c0c (patch) | |
| tree | 21e074052da5d6f80ab25993a3c83e6fdbb489d2 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915: implement WaDisableDopClockGatingisable on VLV and IVB (diff) | |
| download | kernel-qcow2-linux-5c9664d75a65adcdb9763a6df1da1d8d3f417c0c.tar.gz kernel-qcow2-linux-5c9664d75a65adcdb9763a6df1da1d8d3f417c0c.tar.xz kernel-qcow2-linux-5c9664d75a65adcdb9763a6df1da1d8d3f417c0c.zip | |
drm/i915: implement WaForceL3Serialization on VLV and IVB
References: https://bugs.freedesktop.org/show_bug.cgi?id=50250
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Antti Koskipää <antti.koskipaa@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 | 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 aef23641fbcc..871bfe49b913 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3695,6 +3695,10 @@ static void valleyview_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN7_ROW_CHICKEN2, _MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE)); + /* WaForceL3Serialization */ + I915_WRITE(GEN7_L3SQCREG4, I915_READ(GEN7_L3SQCREG4) & + ~L3SQ_URB_READ_CAM_MATCH_DISABLE); + /* This is required by WaCatErrorRejectionIssue */ I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | |