pls ignore this one, will send another new one.
On 2017年04月27日 15:20, Chunming Zhou wrote:
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 <[email protected]>
---
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;
}
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