drm/radeon/cik: use WAIT_REG_MEM special op for CP HDP flush
authorAlex Deucher <alexander.deucher@amd.com>
Thu, 9 Jan 2014 21:51:56 +0000 (16:51 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 20 Jan 2014 17:05:15 +0000 (12:05 -0500)
commit5d2590673f3e5c0c0ecf496fb48c73e3ee3ee573
tree3e6b3f66afc3ec7d5501f6132d79e3ce9ec32037
parentda9e07e6f53eaac4e838bc8c987d87c5769be724
drm/radeon/cik: use WAIT_REG_MEM special op for CP HDP flush

This is the preferred flushing method on CIK.

Note, this only works on the PFP so the engine bit must be
set.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/cik.c