Preamble in linux doesn't mean it is CE PREAMBLE IB, instead it means this IB could be dropped if no ctx switch happens.
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| @@ -445,7 +445,7 @@ union drm_amdgpu_cs { · 444 unmodified lines | ||
| 445 | 445 | /* This IB should be submitted to CE */ |
| 446 | 446 | #define AMDGPU_IB_FLAG_CE (1<<0) |
| 447 | 447 | |
| 448 | −/* CE Preamble */ | |
| 448 | +/* Preamble flag, which means the IB could be dropped if no context switch */ | |
| 449 | 449 | #define AMDGPU_IB_FLAG_PREAMBLE (1<<1) |
| 450 | 450 | |
| 451 | 451 | struct drm_amdgpu_cs_chunk_ib { |