diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-07-17 22:02:29 +0400 |
|---|---|---|
| committer | Christian König <deathsimple@vodafone.de> | 2012-07-18 15:33:39 +0400 |
| commit | a85a7da4c5922e6621526946d5a56b2194692fdd (patch) | |
| tree | 68f23a3706ed03b194910c5beec0bf0ac8e211cf /drivers/gpu/drm/radeon/sid.h | |
| parent | 4ef72566f1035fef5abd0913100d13746e066ee3 (diff) | |
| download | linux-a85a7da4c5922e6621526946d5a56b2194692fdd.tar.xz | |
drm/radeon: update ib_execute for SI (v2)
When submitting a CONST_IB, emit a SWITCH_BUFFER
packet before the CONST_IB. This isn't strictly necessary
(the driver will work fine without it), but is good practice
and allows for more flexible DE/CE sychronization options
in the future. Current userspace drivers do not take
advantage of the CE yet.
v2: - clean up code flow a bit
- no need to flush caches for CONST IB
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/sid.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/sid.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index db4067962868..7869089e8761 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -901,5 +901,6 @@ #define PACKET3_WAIT_ON_DE_COUNTER_DIFF 0x88 #define PACKET3_SET_CE_DE_COUNTERS 0x89 #define PACKET3_WAIT_ON_AVAIL_BUFFER 0x8A +#define PACKET3_SWITCH_BUFFER 0x8B #endif |