diff options
| author | Kent Russell <kent.russell@amd.com> | 2019-05-15 14:35:29 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 19:25:32 +0200 |
| commit | fb2dbfd2427e82ae63742f667cda19f1af6b77c2 (patch) | |
| tree | 21fdc009cce43601cf7a582d0dbb82aa4a68b8d5 /drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c | |
| parent | drm/amdkfd: Add domain number into gpu_id (diff) | |
| download | linux-fb2dbfd2427e82ae63742f667cda19f1af6b77c2.tar.xz linux-fb2dbfd2427e82ae63742f667cda19f1af6b77c2.zip | |
drm/amdgpu: Add Unique Identifier sysfs file unique_id v2
Add a file that provides a Unique ID for the GPU.
This will persist across machines and is guaranteed to be unique.
This is only available for GFX9 and newer, so older ASICs will not
have this file in the sysfs pool
v2: Store it in adev for ASICs that don't have a hwmgr
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c index 1a909dda37c7..efb6d3762feb 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c @@ -289,6 +289,8 @@ static int vega12_set_features_platform_caps(struct pp_hwmgr *hwmgr) static void vega12_init_dpm_defaults(struct pp_hwmgr *hwmgr) { struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); + struct amdgpu_device *adev = hwmgr->adev; + uint32_t top32, bottom32; int i; data->smu_features[GNLD_DPM_PREFETCHER].smu_feature_id = @@ -353,6 +355,14 @@ static void vega12_init_dpm_defaults(struct pp_hwmgr *hwmgr) ((data->registry_data.disallowed_features >> i) & 1) ? false : true; } + + /* Get the SN to turn into a Unique ID */ + smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumTop32); + top32 = smum_get_argument(hwmgr); + smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumBottom32); + bottom32 = smum_get_argument(hwmgr); + + adev->unique_id = ((uint64_t)bottom32 << 32) | top32; } static int vega12_set_private_data_based_on_pptable(struct pp_hwmgr *hwmgr) |