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drm/amdgpu:make ctx_add_fence interruptible(v2)

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otherwise a gpu hang will make application couldn't be killed
under timedout=0 mode

v2:
Fix memoryleak job/job->s_fence issue
unlock mn
remove the ERROR msg after waiting being interrupted

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu
2017-09-15 13:40:31 +08:00
committed by Alex Deucher
parent f840cc5f84
commit eb01abc7c4
3 changed files with 23 additions and 9 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@@ -1129,6 +1129,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
struct amd_sched_entity *entity = &p->ctx->rings[ring->idx].entity;
struct amdgpu_job *job;
unsigned i;
uint64_t seq;
int r;
amdgpu_mn_lock(p->mn);
@@ -1158,10 +1160,20 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
job->fence_ctx = entity->fence_context;
p->fence = dma_fence_get(&job->base.s_fence->finished);
r = amdgpu_ctx_add_fence(p->ctx, ring, p->fence, &seq);
if (r) {
dma_fence_put(p->fence);
dma_fence_put(&job->base.s_fence->finished);
amdgpu_job_free(job);
amdgpu_mn_unlock(p->mn);
return r;
}
amdgpu_cs_post_dependencies(p);
cs->out.handle = amdgpu_ctx_add_fence(p->ctx, ring, p->fence);
job->uf_sequence = cs->out.handle;
cs->out.handle = seq;
job->uf_sequence = seq;
amdgpu_job_free_resources(job);
trace_amdgpu_cs_ioctl(job);