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authorEric Anholt <eric@anholt.net>2009-05-26 17:44:56 -0700
committerEric Anholt <eric@anholt.net>2009-05-26 19:11:31 -0700
commite76a16deb8785317a23cca7204331af053e0fb4e (patch)
tree5a5c2197914c84d21ce4e31942ecfcc9d083b602 /drivers/video
parentcd86a536c81e9300d984327517548ca0652eebf9 (diff)
drm/i915: Fix tiling pitch handling on 8xx.
The pitch field is an exponent on pre-965, so we were rejecting buffers on 8xx that we shouldn't have. 915 got lucky in that the largest legal value happened to match (8KB / 512 = 0x10), but 8xx has a smaller tile width. Additionally, we programmed that bad value into the register on 8xx, so the only pitch that would work correctly was 4096 (512-1023 pixels), while others would probably give bad rendering or hangs. Signed-off-by: Eric Anholt <eric@anholt.net> fd.o bug #20473.
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