drm/i915: Stop passing caller's num_dwords to engine->semaphore.signal()

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Rather than pass in the num_dwords that the caller wishes to use after
the signal command packet, split the breadcrumb emission into two phases
and have both the signal and breadcrumb individiually acquire space on
the ring. This makes the interface simpler for the reader, and will
simplify for patches.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1469432687-22756-25-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470174640-18242-16-git-send-email-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2016-08-02 22:50:33 +01:00

parent f4ea6bddb9

commit 9242f974dc

2 changed files with 23 additions and 32 deletions

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51

drivers/gpu/drm/i915/intel_ringbuffer.c

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4

drivers/gpu/drm/i915/intel_ringbuffer.h

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