drm/i915: Introduce i915_address_space.mutex

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Add a mutex into struct i915_address_space to be used while operating on
the vma and their lists for a particular vm. As this may be called from
the shrinker, we taint the mutex with fs_reclaim so that from the start
lockdep warns us if we are caught holding the mutex across an
allocation. (With such small steps we will eventually rid ourselves of
struct_mutex recursion!)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180711073608.20286-2-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2018-07-11 08:36:02 +01:00

parent 185441e03a

commit 19bb33c756

4 changed files with 25 additions and 1 deletions

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2

drivers/gpu/drm/i915/i915_drv.h

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10

drivers/gpu/drm/i915/i915_gem_gtt.c

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2

drivers/gpu/drm/i915/i915_gem_gtt.h

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drivers/gpu/drm/i915/i915_gem_shrinker.c

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