drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush
authorAlex Deucher <alexdeucher@gmail.com>
Mon, 26 Jul 2010 22:51:53 +0000 (18:51 -0400)
committerDave Airlie <airlied@redhat.com>
Mon, 2 Aug 2010 00:06:18 +0000 (10:06 +1000)
commit812d046915f48236657f02c06d7dc47140e9ceda
tree77a9c724a2316593fa22f7442d5c4a8d00c9af32
parent833ee5c4ab36937a99e63935d7f06bc2c1f9343b
drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush

Use of HDP_*_COHERENCY_FLUSH_CNTL can cause a hang in certain
situations.  Add workaround.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/r600.c
drivers/gpu/drm/radeon/r600d.h
drivers/gpu/drm/radeon/rv770.c
drivers/gpu/drm/radeon/rv770d.h