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| author | James Zhu <James.Zhu@amd.com> | 2020-02-10 12:52:16 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-01 14:44:45 -0400 |
| commit | e3b41d82dabaf6f1da94df8339afeee66e9b1a7e (patch) | |
| tree | c2251647d564f0e6c2d1dfd92d37261d588f5b7f /drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | |
| parent | bd718638b8513e20a481a67f37a8acc1ebf2d957 (diff) | |
| download | linux-e3b41d82dabaf6f1da94df8339afeee66e9b1a7e.tar.gz | |
drm/amdgpu/vcn: fix race condition issue for dpg unpause mode switch
Couldn't only rely on enc fence to decide switching to dpg unpaude mode.
Since a enc thread may not schedule a fence in time during multiple
threads running situation.
v3: 1. Rename enc_submission_cnt to dpg_enc_submission_cnt
2. Add dpg_enc_submission_cnt check in idle_work_handler
v4: Remove extra counter check, and reduce counter before idle
work schedule
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h index 111c4cc69998..e913de8cda69 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h @@ -183,6 +183,7 @@ struct amdgpu_vcn_inst { void *dpg_sram_cpu_addr; uint64_t dpg_sram_gpu_addr; uint32_t *dpg_sram_curr_addr; + atomic_t dpg_enc_submission_cnt; }; struct amdgpu_vcn { |