diff options
author | Kenneth Graunke <[email protected]> | 2018-01-02 14:26:41 -0800 |
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committer | Kenneth Graunke <[email protected]> | 2018-01-09 10:13:33 -0800 |
commit | 8eadc2fb8fe395ea0a8202217bd5545978962d1d (patch) | |
tree | 7797386a6773339af84f0ff951b446f73e013de4 /src/intel/genxml/gen8.xml | |
parent | 5e7d06fcb0c1f11373ff940670744486a467af93 (diff) |
intel: Apply Geminilake "Barrier Mode" workaround.
Apparently, Geminilake requires you to whack a chicken bit to select
either compute or tessellation mode for barriers. The recommendation
is to switch between them at PIPELINE_SELECT time.
We may not need to do this all the time, but I don't know that it hurts
either. PIPELINE_SELECT is already a pretty giant stall.
This appears to fix hangs in tessellation control shaders with barriers
on Geminilake. Note that this requires a corresponding kernel change,
drm/i915: Whitelist SLICE_COMMON_ECO_CHICKEN1 on Geminilake.
in order for the register write to actually happen. Without an updated
kernel, this register write will be noop'd and the fix will not work.
Reviewed-by: Rafael Antognolli <[email protected]>
Diffstat (limited to 'src/intel/genxml/gen8.xml')
0 files changed, 0 insertions, 0 deletions