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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>
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@ -448,6 +448,9 @@ union drm_amdgpu_cs {
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/* Preamble flag, which means the IB could be dropped if no context switch */
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#define AMDGPU_IB_FLAG_PREAMBLE (1<<1)
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/* Preempt flag, IB should set Pre_enb bit if PREEMPT flag detected */
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#define AMDGPU_IB_FLAG_PREEMPT (1<<2)
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struct drm_amdgpu_cs_chunk_ib {
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__u32 _pad;
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/** AMDGPU_IB_FLAG_* */
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