Add support to set XGMI PLPD policy levels through pm_policy sysfs node.

Signed-off-by: Lijo Lazar <lijo.la...@amd.com>
Reviewed-by: Hawking Zhang <hawking.zh...@amd.com>
---
 drivers/gpu/drm/amd/include/kgd_pp_interface.h | 1 +
 drivers/gpu/drm/amd/pm/amdgpu_pm.c             | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h 
b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index 8ed9aa9a990d..4b20e2274313 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -276,6 +276,7 @@ enum pp_xgmi_plpd_mode {
 enum pp_pm_policy {
        PP_PM_POLICY_NONE = -1,
        PP_PM_POLICY_SOC_PSTATE = 0,
+       PP_PM_POLICY_XGMI_PLPD,
        PP_PM_POLICY_NUM,
 };
 
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c 
b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index d62f1d1d6c84..48da662da005 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2318,6 +2318,9 @@ static ssize_t amdgpu_set_pm_policy(struct device *dev,
        if (strncmp(tmp, "soc_pstate", strlen("soc_pstate")) == 0) {
                policy_type = PP_PM_POLICY_SOC_PSTATE;
                tmp += strlen("soc_pstate");
+       } else if (strncmp(tmp, "xgmi", strlen("xgmi")) == 0) {
+               policy_type = PP_PM_POLICY_XGMI_PLPD;
+               tmp += strlen("xgmi");
        } else {
                return -EINVAL;
        }
-- 
2.25.1

Reply via email to