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(parent: 2c34b85) | patch
drm/1915: ringbuffer wait for idle function
authorBen Widawsky <ben@bwidawsk.net>
Sun, 20 Mar 2011 01:14:27 +0000 (18:14 -0700)
committerKeith Packard <keithp@keithp.com>
Tue, 10 May 2011 20:56:40 +0000 (13:56 -0700)
commit96f298aa9c9fc9b7c8a2ebaf8c195d178f570e09
treecfb71da9613d701728520ec5f916e7cb6aa8a889tree | snapshot
parent2c34b850ee1e9f86b41706149d0954eee58757a3commit | diff
drm/1915: ringbuffer wait for idle function

Added a new function which waits for the ringbuffer space to be equal to
(total - 8). This is the empty condition of the ringbuffer, and
equivalent to head==tail.

Also modified two users of this functionality elsewhere in the code.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
drivers/gpu/drm/i915/i915_dma.c diff | blob | history
drivers/gpu/drm/i915/intel_ringbuffer.c diff | blob | history
drivers/gpu/drm/i915/intel_ringbuffer.h diff | blob | history
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