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| author | Kenneth Graunke | 2014-02-27 08:59:30 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2014-03-05 21:30:28 +0100 |
| commit | c8966e1058e1e8ae2eec4211157847032829697a (patch) | |
| tree | 21725b908a36710d7db7f80d0b8a91d786a90624 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915: Add suspend count to error state (diff) | |
| download | kernel-qcow2-linux-c8966e1058e1e8ae2eec4211157847032829697a.tar.gz kernel-qcow2-linux-c8966e1058e1e8ae2eec4211157847032829697a.tar.xz kernel-qcow2-linux-c8966e1058e1e8ae2eec4211157847032829697a.zip | |
drm/i915: Add a partial instruction shootdown workaround on Broadwell.
I believe this will be necessary on production hardware.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Fix whitespace fail spotted by checkpatch. Also add missing
:bdw w/a tag that Ville spotted.]
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 2ded0f6d543b..f21c9f3ee643 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4801,6 +4801,10 @@ static void gen8_init_clock_gating(struct drm_device *dev) /* FIXME(BDW): Check all the w/a, some might only apply to * pre-production hw. */ + /* WaDisablePartialInstShootdown:bdw */ + I915_WRITE(GEN8_ROW_CHICKEN, + _MASKED_BIT_ENABLE(PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE)); + /* * This GEN8_CENTROID_PIXEL_OPT_DIS W/A is only needed for * pre-production hardware |