diff options
| author | Chris Wilson <[email protected]> | 2019-11-10 18:57:51 +0000 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2019-11-11 13:27:03 +0000 |
| commit | 69a48c1d28e05893607b89515442b993cd5326ed (patch) | |
| tree | fc267619f0ee56b7b4b3546efe569453095e80bf /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | 7a73e671acbaf00ad6aa4ee0e3f39e3c9a9ef563 (diff) | |
drm/i915/execlists: Reduce barrier on context switch to a wmb()
Having been forced to reduce Braswell back to using the aliasing ppgtt,
the coherency issue we previously observed cannot impact us. Reduce the
performance penalty imposed on all platforms from using the mfence to a
mere sfence.
References: cf66b8a0ba14 ("drm/i915/execlists: Apply a full mb before execution for Braswell")
Signed-off-by: Chris Wilson <[email protected]>
Cc: Mika Kuoppala <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Reviewed-by: Joonas Lahtinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
0 files changed, 0 insertions, 0 deletions