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| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2017-10-10 16:50:17 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-19 15:26:59 -0400 |
| commit | 0ae94444c08a0adf2fab4aab26be0646ee445a19 (patch) | |
| tree | d5bc47553183dfe5ec29a23fe3e7d78f1906fc2d /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
| parent | ad864d243826cedc53404a1c0db7d1e38ddceb84 (diff) | |
| download | op-kernel-dev-0ae94444c08a0adf2fab4aab26be0646ee445a19.zip op-kernel-dev-0ae94444c08a0adf2fab4aab26be0646ee445a19.tar.gz | |
drm/amdgpu: Move old fence waiting before reservation lock is aquired v2
Helps avoiding deadlock during GPU reset.
Added mutex to amdgpu_ctx to preserve order of fences on a ring.
v2:
Put waiting logic in a function in a seperate function in amdgpu_ctx.c
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 9166d5e..5de092e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -90,6 +90,8 @@ static int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data) goto free_chunk; } + mutex_lock(&p->ctx->lock); + /* get chunks */ chunk_array_user = u64_to_user_ptr(cs->in.chunks); if (copy_from_user(chunk_array, chunk_array_user, @@ -737,8 +739,10 @@ static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error, dma_fence_put(parser->fence); - if (parser->ctx) + if (parser->ctx) { + mutex_unlock(&parser->ctx->lock); amdgpu_ctx_put(parser->ctx); + } if (parser->bo_list) amdgpu_bo_list_put(parser->bo_list); @@ -895,9 +899,7 @@ static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev, r = amdgpu_ring_parse_cs(ring, p, j); if (r) return r; - } - j++; } @@ -985,7 +987,7 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev, parser->job->ring->funcs->type == AMDGPU_RING_TYPE_VCE)) return -EINVAL; - return 0; + return amdgpu_ctx_wait_prev_fence(parser->ctx, parser->job->ring->idx); } static int amdgpu_cs_process_fence_dep(struct amdgpu_cs_parser *p, |
