diff options
| author | Jonathan Kim <jonathan.kim@amd.com> | 2020-03-17 22:43:41 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-23 01:11:46 +0300 |
| commit | d84a430d9f7b1ce6baedf1305106d0ae706aca76 (patch) | |
| tree | bbed9c0ce3c43692244ee9033dc685be34c842f2 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | 9f65693577d976792e6dbad9ad42105b129259c6 (diff) | |
| download | linux-d84a430d9f7b1ce6baedf1305106d0ae706aca76.tar.xz | |
drm/amdgpu: fix race between pstate and remote buffer map
Vega20 arbitrates pstate at hive level and not device level. Last peer to
remote buffer unmap could drop P-State while another process is still
remote buffer mapped.
With this fix, P-States still needs to be disabled for now as SMU bug
was discovered on synchronous P2P transfers. This should be fixed in the
next FW update.
Signed-off-by: Jonathan Kim <Jonathan.Kim@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 215f57765e5e..8a7f794e3ffa 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -986,8 +986,6 @@ struct amdgpu_device { uint64_t unique_id; uint64_t df_perfmon_config_assign_mask[AMDGPU_MAX_DF_PERFMONS]; - /* device pstate */ - int pstate; /* enable runtime pm on the device */ bool runpm; bool in_runpm; |