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| author | Ken Wang <Qingqing.Wang@amd.com> | 2016-02-04 13:52:22 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-02-04 12:26:43 -0500 |
| commit | f884af9b57ff480d3c87870d8b40055d9c8c6cfe (patch) | |
| tree | 5d129a40a4a27bc04e4156765ce1ff98c3adb123 | |
| parent | 6950af4e8475fa969ba46675fe2665c842fc4b79 (diff) | |
| download | drm-f884af9b57ff480d3c87870d8b40055d9c8c6cfe.tar.gz | |
amdgpu: fix for submition with no ibs
Avoid a crash if no IBs are specified.
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | amdgpu/amdgpu_cs.c | 8 | ||||
| -rw-r--r-- | amdgpu/amdgpu_internal.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c index b4f41b0e..fb5b3a8c 100644 --- a/amdgpu/amdgpu_cs.c +++ b/amdgpu/amdgpu_cs.c @@ -190,6 +190,10 @@ static int amdgpu_cs_submit_one(amdgpu_context_handle context, return -EINVAL; if (ibs_request->number_of_ibs > AMDGPU_CS_MAX_IBS_PER_SUBMIT) return -EINVAL; + if (ibs_request->number_of_ibs == 0) { + ibs_request->seq_no = AMDGPU_NULL_SUBMIT_SEQ; + return 0; + } user_fence = (ibs_request->fence_info.handle != NULL); size = ibs_request->number_of_ibs + (user_fence ? 2 : 1) + 1; @@ -422,6 +426,10 @@ int amdgpu_cs_query_fence_status(struct amdgpu_cs_fence *fence, return -EINVAL; if (fence->ring >= AMDGPU_CS_MAX_RINGS) return -EINVAL; + if (fence->fence == AMDGPU_NULL_SUBMIT_SEQ) { + *expired = true; + return 0; + } *expired = false; diff --git a/amdgpu/amdgpu_internal.h b/amdgpu/amdgpu_internal.h index 557ba1f1..4f039b68 100644 --- a/amdgpu/amdgpu_internal.h +++ b/amdgpu/amdgpu_internal.h @@ -44,6 +44,7 @@ #define ROUND_DOWN(x, y) ((x) & ~__round_mask(x, y)) #define AMDGPU_INVALID_VA_ADDRESS 0xffffffffffffffff +#define AMDGPU_NULL_SUBMIT_SEQ 0 struct amdgpu_bo_va_hole { struct list_head list; |