Add support to set XGMI PLPD policy levels through pm_policy sysfs node.
Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
---
v2, v3: No change
v4: Use a macro for XGMI PLPD policy type
drivers/gpu/drm/amd/include/kgd_pp_interface.h | 1 +
drivers/gpu/drm/amd/pm/amdgpu_pm.c | 4 ++++
drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h | 1 +
3 files changed, 6 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 6dab0b085239..b03c38d198ea 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2293,6 +2293,7 @@ static ssize_t amdgpu_get_pm_policy(struct device *dev,
}
#define STR_SOC_PSTATE_POLICY "soc_pstate"
+#define STR_XGMI_PLPD_POLICY "xgmi_plpd"
static ssize_t amdgpu_set_pm_policy(struct device *dev,
struct device_attribute *attr,
@@ -2320,6 +2321,9 @@ static ssize_t amdgpu_set_pm_policy(struct device *dev,
if (strncmp(tmp, STR_SOC_PSTATE_POLICY, strlen(STR_SOC_PSTATE_POLICY)) == 0) {
policy_type = PP_PM_POLICY_SOC_PSTATE;
tmp += strlen(STR_SOC_PSTATE_POLICY);
+ } else if (strncmp(tmp, STR_XGMI_PLPD_POLICY, strlen(STR_XGMI_PLPD_POLICY)) == 0) {
+ policy_type = PP_PM_POLICY_XGMI_PLPD;
+ tmp += strlen(STR_XGMI_PLPD_POLICY);
} else {
return -EINVAL;
}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
index ee5b9701038c..f304071adee1 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
@@ -1574,6 +1574,7 @@ typedef struct {
} WifiBandEntryTable_t;
#define STR_SOC_PSTATE_POLICY "soc_pstate"
+#define STR_XGMI_PLPD_POLICY "xgmi_plpd"
struct smu_dpm_policy *smu_get_pm_policy(struct smu_context *smu,
enum pp_pm_policy p_type);
--
2.25.1
