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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2016-11-16 15:27:21 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-11-16 21:12:39 +0000 |
| commit | 27745e829a5cb896249f355f5bdab3249c5455e2 (patch) | |
| tree | 792016b59a86461057e2e1a28ad4d2bfddfb4340 /tools/perf/scripts/python | |
| parent | drm/i915/bxt: Broxton decoupled MMIO (diff) | |
| download | linux-dev-27745e829a5cb896249f355f5bdab3249c5455e2.tar.xz linux-dev-27745e829a5cb896249f355f5bdab3249c5455e2.zip | |
drm/i915/execlists: Use a local lock for dfs_link access
Avoid requiring struct_mutex for exclusive access to the temporary
dfs_link inside the i915_dependency as not all callers may want to touch
struct_mutex. So rather than force them to take a highly contended
lock, introduce a local lock for the execlists schedule operation.
Reported-by: David Weinehall <david.weinehall@linux.intel.com>
Fixes: 9a151987d709 ("drm/i915: Add execution priority boosting for mmioflips")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: David Weinehall <david.weinehall@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161116152721.11053-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions