drm/i915: Make fb_tracking.lock a spinlock

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We only need a very lightweight mechanism here as the locking is only
used for co-ordinating a bitfield.

v2: Move the cheap unlikely tests into the caller
v3: Move the kerneldoc into the header (now separated out into
intel_fronbuffer.h for better kerneldoc and readability)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtien <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-20-git-send-email-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2016-08-04 16:32:36 +01:00

parent 5d723d7afd

commit b5add9591c

4 changed files with 71 additions and 56 deletions

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2

drivers/gpu/drm/i915/i915_drv.h

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2

drivers/gpu/drm/i915/i915_gem.c

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73

drivers/gpu/drm/i915/intel_frontbuffer.c

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50

drivers/gpu/drm/i915/intel_frontbuffer.h

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