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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-02-07 11:02:13 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-02-07 13:07:28 +0000 |
| commit | 793c226173675ea7f8591d22803a1432e2b724e0 (patch) | |
| tree | 1e7773a8568888c759ae83b3976f5a220a109ebf /tools/perf/scripts/python | |
| parent | Revert "drm/i915: Don't use VBT for detecting DPCD backlight controls" (diff) | |
| download | linux-793c226173675ea7f8591d22803a1432e2b724e0.tar.gz linux-793c226173675ea7f8591d22803a1432e2b724e0.zip | |
drm/i915/gt: Protect execlists_hold/unhold from new waiters
As we may add new waiters to a request as it is being run, we need to
mark the list iteration as being safe for concurrent addition.
v2: Mika spotted that we used the same trick for signalers_list, so warn
the compiler about the lockless walk there as well.
Fixes: 32ff621fd744 ("drm/i915/gt: Allow temporary suspension of inflight requests")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200207110213.2734386-1-chris@chris-wilson.co.uk
Diffstat (limited to 'tools/perf/scripts/python')
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