diff options
| author | John Clements <john.clements@amd.com> | 2020-05-13 12:45:06 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-05-15 00:42:15 +0300 |
| commit | ab9c21124d6e03460c9c59006a61cc076fefa82e (patch) | |
| tree | 2b73e9d734a1b8548a94fb507e82fb430cdfc375 /drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | |
| parent | 29c1ec244ca1c2acfe6a8918967d678e104705c2 (diff) | |
| download | linux-ab9c21124d6e03460c9c59006a61cc076fefa82e.tar.xz | |
drm/amdgpu: Add cmd to control XGMI link sleep
Added host to SMU FW cmd to enable/disable XGMI link power down
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amdgpu_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index de14542de775..8c684a6e0156 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -2100,6 +2100,28 @@ int smu_set_df_cstate(struct smu_context *smu, return ret; } +int smu_allow_xgmi_power_down(struct smu_context *smu, bool en) +{ + struct amdgpu_device *adev = smu->adev; + int ret = 0; + + if (!adev->pm.dpm_enabled) + return -EINVAL; + + if (!smu->ppt_funcs || !smu->ppt_funcs->allow_xgmi_power_down) + return 0; + + mutex_lock(&smu->mutex); + + ret = smu->ppt_funcs->allow_xgmi_power_down(smu, en); + if (ret) + pr_err("[AllowXgmiPowerDown] failed!\n"); + + mutex_unlock(&smu->mutex); + + return ret; +} + int smu_write_watermarks_table(struct smu_context *smu) { void *watermarks_table = smu->smu_table.watermarks_table; |