drm/i915: Introduce a mutex for file_priv->context_idr

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Define a mutex for the exclusive use of interacting with the per-file
context-idr, that was previously guarded by struct_mutex. This allows us
to reduce the coverage of struct_mutex, with a view to removing the last
bits coordinating GEM context later. (In the short term, we avoid taking
struct_mutex while using the extended constructor functions, preventing
some nasty recursion.)

v2: s/context_lock/context_idr_lock/

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190321140711.11190-2-chris@chris-wilson.co.uk

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Chris Wilson 2019-03-21 14:07:09 +00:00

parent 3aa9945a52

commit 7dc4071361

2 changed files with 23 additions and 26 deletions

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2

drivers/gpu/drm/i915/i915_drv.h

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47

drivers/gpu/drm/i915/i915_gem_context.c

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