the case could happen when gpu reset: 1. when gpu reset, cs can be continue until sw queue is full, then push job will wait with holding pd reservation. 2. gpu_reset routine will also need pd reservation to restore page table from their shadow. 3. cs is waiting for gpu_reset complete, but gpu reset is waiting for cs releases reservation. Change-Id: I0f66d04b2bef3433035109623c8a5c5992c84202 Signed-off-by: Chunming Zhou <David1.Zhou at amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 9edb1a4..8c6d036 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1076,7 +1076,6 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, amdgpu_job_free_resources(job); trace_amdgpu_cs_ioctl(job); - amd_sched_entity_push_job(&job->base); return 0; } @@ -1132,6 +1131,8 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) out: amdgpu_cs_parser_fini(&parser, r, reserved_buffers); + if (!r) + amd_sched_entity_push_job(&parser.job->base); return r; } -- 1.9.1
