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drm/amdgpu: add CE preamble flag v3

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The CE preamble IB can be dropped for the same context

v2: use the flags directly
v3: remove 'CE' for potential preamble usage by other rings

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Jammy Zhou 2015-05-11 23:49:34 +08:00 • committed by Alex Deucher
commit aa2bdb2476
3 changed files with 17 additions and 0 deletions
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3
include/uapi/drm/amdgpu_drm.h
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@ -369,6 +369,9 @@ union drm_amdgpu_cs {
/* GDS is used by this IB */
#define AMDGPU_IB_FLAG_GDS (1<<1)
/* CE Preamble */
#define AMDGPU_IB_FLAG_PREAMBLE (1<<2)
struct drm_amdgpu_cs_chunk_ib {
/**
* Handle of GEM object to be used as IB or 0 if it is already in