diff options
author | Kenneth Graunke <kenneth@whitecape.org> | 2014-02-26 23:59:31 -0800 |
---|---|---|
committer | Ben Widawsky <benjamin.widawsky@intel.com> | 2014-05-08 11:03:48 -0700 |
commit | bcaad29a8472d1ed6a3769ed3fd38c0660664859 (patch) | |
tree | a315897ef2458de2876c892701f2bce3688a2f5e | |
parent | c7cac3cb6decac1701bd796026eb040299b34590 (diff) |
drm/i915: Add thread stall DOP clock gating workaround on Broadwell.
Ben and I believe this will be necessary on production hardware.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
-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 2a7dff01082a..4d0a46e978cb 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5051,6 +5051,10 @@ static void gen8_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN8_ROW_CHICKEN, _MASKED_BIT_ENABLE(STALL_DOP_GATING_DISABLE)); + /* WaDisableThreadStallDopClockGating:bdw */ + I915_WRITE(GEN8_ROW_CHICKEN, + _MASKED_BIT_ENABLE(STALL_DOP_GATING_DISABLE)); + /* * This GEN8_CENTROID_PIXEL_OPT_DIS W/A is only needed for * pre-production hardware |