drm/i915: Mark the GEM context link as RCU protected

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The only protection for intel_context.gem_cotext is granted by RCU, so
annotate it as a rcu protected pointer and carefully dereference it in
the few occasions we need to use it.

Fixes: 9f3ccd40ac ("drm/i915: Drop GEM context as a direct link from i915_request")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191222233558.2201901-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-12-22 23:35:58 +00:00

parent 76f9764cc3

commit 6a8679c048

7 changed files with 62 additions and 27 deletions

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5

drivers/gpu/drm/i915/gem/i915_gem_context.c

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2

drivers/gpu/drm/i915/gt/intel_context_types.h

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26

drivers/gpu/drm/i915/gt/intel_reset.c

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2

drivers/gpu/drm/i915/gt/intel_ring_submission.c

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40

drivers/gpu/drm/i915/i915_gpu_error.c

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6

drivers/gpu/drm/i915/i915_request.c

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8

drivers/gpu/drm/i915/i915_request.h

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