drm: radeon: implement RADEON_PARAM_SCRATCH_OFFSET getparam
authorMichel Dänzer <michel@tungstengraphics.com>
Mon, 7 Aug 2006 10:33:57 +0000 (20:33 +1000)
committerDave Airlie <airlied@linux.ie>
Thu, 21 Sep 2006 19:32:30 +0000 (05:32 +1000)
When this succeeds, userspace can read the scratch register contents from th    mapped writeback page directly.

Signed-off-by: Dave Airlie <airlied@linux.ie>

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