As these operations are performed in hardware setup and there
is actually no race conditions during this period considering:
1. the hardware setup is serial and cannot be in parallel
2. all other operations can be performed only after hardware
setup complete.
V2: rich the commit log description
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
int ret = 0;
uint32_t allowed_feature_mask[SMU_FEATURE_MAX/32];
- mutex_lock(&feature->mutex);
bitmap_zero(feature->allowed, SMU_FEATURE_MAX);
- mutex_unlock(&feature->mutex);
ret = smu_get_allowed_feature_mask(smu, allowed_feature_mask,
SMU_FEATURE_MAX/32);
if (ret)
return ret;
- mutex_lock(&feature->mutex);
bitmap_or(feature->allowed, feature->allowed,
(unsigned long *)allowed_feature_mask,
feature->feature_num);
- mutex_unlock(&feature->mutex);
return ret;
}
int ret = 0;
uint32_t feature_mask[2];
- mutex_lock(&feature->mutex);
if (bitmap_empty(feature->allowed, SMU_FEATURE_MAX) || feature->feature_num < 64)
goto failed;
goto failed;
failed:
- mutex_unlock(&feature->mutex);
return ret;
}