drm/i915: Skip taking acquire mutex for no ref->active callback

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If no active callback is defined for i915_active, we do not need to
serialise its enabling with the mutex. We still do only want to call the
debug activate once, and must still serialise with a concurrent retire.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200731085015.32368-2-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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Chris Wilson 2020-07-31 09:50:10 +01:00 • committed by Joonas Lahtinen

parent bde246d893

commit 04240e30ed

1 changed files with 16 additions and 8 deletions

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drivers/gpu/drm/i915/i915_active.c

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