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drm/i915: Drop wmb() inside pread_gtt
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 18 Jul 2019 14:54:04 +0000 (15:54 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 18 Jul 2019 19:04:50 +0000 (20:04 +0100)
commitd45a4dd527068f0d7ee6cdd9e13c03b3f9e59dba
tree9a205c3c8b18c9fb2c9113d0c86aaf24c50163c9tree | snapshot
parentbffb31f73b29a60ef693842d8744950c2819851dcommit | diff
drm/i915: Drop wmb() inside pread_gtt

Inside pread, we only ever read from the GTT so the serialising wmb()
instructions around the GGTT PTE updates are pointless.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190718145407.21352-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem.c diff | blob | history
Domain: System / Kernel;