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(parent: 12390aa) | patch
drm/i915: Reject commands that would store to global HWS page
authorBrad Volkin <bradley.d.volkin@intel.com>
Tue, 18 Feb 2014 18:15:55 +0000 (10:15 -0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 1 Apr 2014 20:58:14 +0000 (22:58 +0200)
commitb30d84d1cd34f5c562b08ad100502fa6fd44fa8b
tree19aee24e789cc422d103f588a7e65518aef7eceatree | snapshot
parent12390aa241cc8a58116f31363fdd60a9b3bc2dc7commit | diff
drm/i915: Reject commands that would store to global HWS page

PIPE_CONTROL and MI_FLUSH_DW have bits that would write to the
hardware status page. The driver stores request tracking info
there, so don't let userspace overwrite it.

v2: trailing comma fix, rebased

Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_cmd_parser.c diff | blob | history
drivers/gpu/drm/i915/i915_reg.h diff | blob | history
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