diff options
| author | Marek Olšák <marek.olsak@amd.com> | 2018-04-03 13:05:03 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-15 13:43:32 -0500 |
| commit | d240cd9eddd943dbe0267d081697195ff1e90b65 (patch) | |
| tree | ff9648c93738e223b8da42489f5d64aa8caa9895 /include/uapi | |
| parent | 3f188453faf7ba5b59e8064df4afffbc946e25ec (diff) | |
| download | linux-d240cd9eddd943dbe0267d081697195ff1e90b65.tar.bz2 | |
drm/amdgpu: optionally do a writeback but don't invalidate TC for IB fences
There is a new IB flag that enables this new behavior.
Full invalidation is unnecessary for RELEASE_MEM and doesn't make sense
when draw calls from two adjacent gfx IBs run in parallel. This will be
the new default for Mesa.
v2: bump the version
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/amdgpu_drm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index b193e95f1f24..78fe828f2f79 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -526,6 +526,10 @@ union drm_amdgpu_cs { /* Preempt flag, IB should set Pre_enb bit if PREEMPT flag detected */ #define AMDGPU_IB_FLAG_PREEMPT (1<<2) +/* The IB fence should do the L2 writeback but not invalidate any shader + * caches (L2/vL1/sL1/I$). */ +#define AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE (1 << 3) + struct drm_amdgpu_cs_chunk_ib { __u32 _pad; /** AMDGPU_IB_FLAG_* */ |