drm/radeon/cik: use WAIT_REG_MEM special op for CP HDP flush

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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>

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Alex Deucher 2014-01-09 16:51:56 -05:00

parent da9e07e6f5

commit 5d2590673f

1 changed files with 30 additions and 9 deletions

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39

drivers/gpu/drm/radeon/cik.c

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