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authorJesse Barnes <jbarnes@virtuousgeek.org>2012-10-25 15:15:43 -0400
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-11-11 17:51:35 -0500
commit5c9664d75a65adcdb9763a6df1da1d8d3f417c0c (patch)
tree21e074052da5d6f80ab25993a3c83e6fdbb489d2 /drivers
parent8ab4397640de51f4a93845b09270ad717244ccb3 (diff)
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')
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c4
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)
3695 I915_WRITE(GEN7_ROW_CHICKEN2, 3695 I915_WRITE(GEN7_ROW_CHICKEN2,
3696 _MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE)); 3696 _MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE));
3697 3697
3698 /* WaForceL3Serialization */
3699 I915_WRITE(GEN7_L3SQCREG4, I915_READ(GEN7_L3SQCREG4) &
3700 ~L3SQ_URB_READ_CAM_MATCH_DISABLE);
3701
3698 /* This is required by WaCatErrorRejectionIssue */ 3702 /* This is required by WaCatErrorRejectionIssue */
3699 I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, 3703 I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG,
3700 I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | 3704 I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) |