drm/i915: Move vma lookup to its own lock

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Remove the struct_mutex requirement for looking up the vma for an
object.

v2: Highlight how the race for duplicate vma creation is resolved on
reacquiring the lock with a short comment.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128102356.15037-3-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-01-28 10:23:54 +00:00

parent 09d7e46b97

commit 528cbd17ce

6 changed files with 98 additions and 58 deletions

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6

drivers/gpu/drm/i915/i915_debugfs.c

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33

drivers/gpu/drm/i915/i915_gem.c

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45

drivers/gpu/drm/i915/i915_gem_object.h

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80

drivers/gpu/drm/i915/i915_vma.c

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2

drivers/gpu/drm/i915/i915_vma.h

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4

drivers/gpu/drm/i915/selftests/i915_vma.c

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