diff options
| author | Dave Airlie <airlied@redhat.com> | 2012-05-07 16:09:09 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-05-07 16:09:35 +0100 |
| commit | 4f256e8aa3eda15c11c3cec3ec5336e1fc579cbd (patch) | |
| tree | 33c02b5e18e79756005a3edfa7c862a47de668d5 /drivers/gpu/drm/i915/intel_ringbuffer.c | |
| parent | 4086b1e2b19729eebf632073b9d4ab811726d8eb (diff) | |
| parent | dc257cf154be708ecc47b8b89c12ad8cd2cc35e4 (diff) | |
Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
Daniel prepared this branch with a back-merge as git was getting
very confused about changes in intel_display.c
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 12d9bc789df..b5ef7c145ee 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -418,6 +418,14 @@ static int init_render_ring(struct intel_ring_buffer *ring) if (INTEL_INFO(dev)->gen >= 6) { I915_WRITE(INSTPM, INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING); + + /* From the Sandybridge PRM, volume 1 part 3, page 24: + * "If this bit is set, STCunit will have LRA as replacement + * policy. [...] This bit must be reset. LRA replacement + * policy is not supported." + */ + I915_WRITE(CACHE_MODE_0, + CM0_STC_EVICT_DISABLE_LRA_SNB << CM0_MASK_SHIFT); } return ret; |