<div dir="ltr"><div>Reviewed-by: Marek Olšák <<a href="mailto:marek.olsak@amd.com">marek.olsak@amd.com</a>></div><div>Tested-by: Marek Olšák <<a href="mailto:marek.olsak@amd.com">marek.olsak@amd.com</a>></div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Feb 1, 2019 at 3:00 PM Andrey Grodzovsky <<a href="mailto:andrey.grodzovsky@amd.com">andrey.grodzovsky@amd.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">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 Signed-off-by: Andrey Grodzovsky <<a href="mailto:andrey.grodzovsky@amd.com" target="_blank">andrey.grodzovsky@amd.com</a>> Suggested-by: Christian Koenig <<a href="mailto:Christian.Koenig@amd.com" target="_blank">Christian.Koenig@amd.com</a>> --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 12 +++++++++++- include/uapi/drm/amdgpu_drm.h | 1 + 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 1c49b82..3f21eca 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 +1091,14 @@ 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); + + dma_fence_put(fence); + fence = dma_fence_get(&s_fence->scheduled); + } + if (IS_ERR(fence)) { r = PTR_ERR(fence); amdgpu_ctx_put(ctx); @@ -1177,7 +1186,8 @@ 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/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index faaad04..43d03a2 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -526,6 +526,7 @@ 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; -- 2.7.4 _______________________________________________ amd-gfx mailing list <a href="mailto:amd-gfx@lists.freedesktop.org" target="_blank">amd-gfx@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a> </blockquote></div>