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uapi/drm:add new flag for Preemption 

when MCBP supported, we will set pre_enb bit for those
IBs with PREEMPT flag tagged

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu 2017-03-08 15:38:54 +08:00 committed by Alex Deucher
parent ed834af243
commit 71aec257ec
1 changed files with 3 additions and 0 deletions
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3
include/uapi/drm/amdgpu_drm.h
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@ -448,6 +448,9 @@ union drm_amdgpu_cs {
/* Preamble flag, which means the IB could be dropped if no context switch */
#define AMDGPU_IB_FLAG_PREAMBLE (1<<1)
/* Preempt flag, IB should set Pre_enb bit if PREEMPT flag detected */
#define AMDGPU_IB_FLAG_PREEMPT (1<<2)
struct drm_amdgpu_cs_chunk_ib {
__u32 _pad;
/** AMDGPU_IB_FLAG_* */