diff options
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amd_powerplay.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index 7c4b88aa7abb..376ed2dd52c7 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -1237,6 +1237,65 @@ static int pp_dpm_notify_smu_memory_info(void *handle, return ret; } +static int pp_set_power_limit(void *handle, uint32_t limit) +{ + struct pp_hwmgr *hwmgr; + struct pp_instance *pp_handle = (struct pp_instance *)handle; + int ret = 0; + + ret = pp_check(pp_handle); + + if (ret) + return ret; + + hwmgr = pp_handle->hwmgr; + + if (hwmgr->hwmgr_func->set_power_limit == NULL) { + pr_info("%s was not implemented.\n", __func__); + return -EINVAL; + } + + if (limit == 0) + limit = hwmgr->default_power_limit; + + if (limit > hwmgr->default_power_limit) + return -EINVAL; + + mutex_lock(&pp_handle->pp_lock); + hwmgr->hwmgr_func->set_power_limit(hwmgr, limit); + hwmgr->power_limit = limit; + mutex_unlock(&pp_handle->pp_lock); + return ret; +} + +static int pp_get_power_limit(void *handle, uint32_t *limit, bool default_limit) +{ + struct pp_hwmgr *hwmgr; + struct pp_instance *pp_handle = (struct pp_instance *)handle; + int ret = 0; + + ret = pp_check(pp_handle); + + if (ret) + return ret; + + if (limit == NULL) + return -EINVAL; + + hwmgr = pp_handle->hwmgr; + + mutex_lock(&pp_handle->pp_lock); + + if (default_limit) + *limit = hwmgr->default_power_limit; + else + *limit = hwmgr->power_limit; + + mutex_unlock(&pp_handle->pp_lock); + + return ret; +} + static int pp_display_configuration_change(void *handle, const struct amd_pp_display_configuration *display_config) { @@ -1530,6 +1589,8 @@ const struct amd_pm_funcs pp_dpm_funcs = { .get_power_profile_mode = pp_get_power_profile_mode, .set_power_profile_mode = pp_set_power_profile_mode, .odn_edit_dpm_table = pp_odn_edit_dpm_table, + .set_power_limit = pp_set_power_limit, + .get_power_limit = pp_get_power_limit, /* export to DC */ .get_sclk = pp_dpm_get_sclk, .get_mclk = pp_dpm_get_mclk, |