drm/i915: Pull scheduling under standalone lock

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Currently, the backend scheduling code abuses struct_mutex into order to
have a global lock to manipulate a temporary list (without widespread
allocation) and to protect against list modifications. This is an
extraneous coupling to struct_mutex and further can not extend beyond
the local device.

Pull all the code that needs to be under the one true lock into
i915_scheduler.c, and make it so.

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/20181001144755.7978-2-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2018-10-01 15:47:54 +01:00

parent b16c765122

commit e2f3496e93

8 changed files with 411 additions and 361 deletions

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1

drivers/gpu/drm/i915/Makefile

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85

drivers/gpu/drm/i915/i915_request.c

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8

drivers/gpu/drm/i915/i915_request.h

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377

drivers/gpu/drm/i915/i915_scheduler.c

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25

drivers/gpu/drm/i915/i915_scheduler.h

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3

drivers/gpu/drm/i915/intel_display.c

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268

drivers/gpu/drm/i915/intel_lrc.c

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5

drivers/gpu/drm/i915/intel_ringbuffer.h

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