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| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2019-01-31 15:44:22 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-02-05 21:15:46 -0500 |
| commit | 67dd1a36334ffce82bebeb2d633e152aa436d370 (patch) | |
| tree | b4d298fb24593a60d0b77e82f8ff982cc4c639df | |
| parent | 373e87fc91527124cb8ec21465a6d070a65c56af (diff) | |
| download | linux-67dd1a36334ffce82bebeb2d633e152aa436d370.tar.bz2 | |
drm/amdgpu: Add AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES
New chunk for dependency on start of job's execution instead on
the end. This is used for GPU deadlock prevention when
userspace uses mid-IB fences to wait for mid-IB work on other rings.
v2: Fix typo in AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES
v3: Bump KMS version
v4: put old fence AFTER acquiring the scheduled fence.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Suggested-by: Christian Koenig <Christian.Koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 | ||||
| -rw-r--r-- | include/uapi/drm/amdgpu_drm.h | 1 |
3 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 1c49b8266d69..52a5e4fdc95b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -214,6 +214,7 @@ static int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, union drm_amdgpu_cs case AMDGPU_CHUNK_ID_DEPENDENCIES: case AMDGPU_CHUNK_ID_SYNCOBJ_IN: case AMDGPU_CHUNK_ID_SYNCOBJ_OUT: + case AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES: break; default: @@ -1090,6 +1091,15 @@ static int amdgpu_cs_process_fence_dep(struct amdgpu_cs_parser *p, fence = amdgpu_ctx_get_fence(ctx, entity, deps[i].handle); + + if (chunk->chunk_id == AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES) { + struct drm_sched_fence *s_fence = to_drm_sched_fence(fence); + struct dma_fence *old = fence; + + fence = dma_fence_get(&s_fence->scheduled); + dma_fence_put(old); + } + if (IS_ERR(fence)) { r = PTR_ERR(fence); amdgpu_ctx_put(ctx); @@ -1177,7 +1187,8 @@ static int amdgpu_cs_dependencies(struct amdgpu_device *adev, chunk = &p->chunks[i]; - if (chunk->chunk_id == AMDGPU_CHUNK_ID_DEPENDENCIES) { + if (chunk->chunk_id == AMDGPU_CHUNK_ID_DEPENDENCIES || + chunk->chunk_id == AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES) { r = amdgpu_cs_process_fence_dep(p, chunk); if (r) return r; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index c806f984bcc5..1158a6f4eec6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -71,9 +71,10 @@ * - 3.25.0 - Add support for sensor query info (stable pstate sclk/mclk). * - 3.26.0 - GFX9: Process AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE. * - 3.27.0 - Add new chunk to to AMDGPU_CS to enable BO_LIST creation. + * - 3.28.0 - Add AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES */ #define KMS_DRIVER_MAJOR 3 -#define KMS_DRIVER_MINOR 27 +#define KMS_DRIVER_MINOR 28 #define KMS_DRIVER_PATCHLEVEL 0 int amdgpu_vram_limit = 0; diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index be84e43c1e19..47296f2ec3fa 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -523,6 +523,7 @@ struct drm_amdgpu_gem_va { #define AMDGPU_CHUNK_ID_SYNCOBJ_IN 0x04 #define AMDGPU_CHUNK_ID_SYNCOBJ_OUT 0x05 #define AMDGPU_CHUNK_ID_BO_HANDLES 0x06 +#define AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES 0x07 struct drm_amdgpu_cs_chunk { __u32 chunk_id; |