amdgpu/pm: Disallow managing power profiles on SRIOV for Sienna Cichlid

Managing power profiles mode is not allowed in SRIOV mode for Sienna
Cichlid. This patch is adjusting the "pp_power_profile_mode" and
"power_dpm_force_performance_level" accordingly.

Signed-off-by: Danijel Slivka <[e-mail]>
Reviewed-by: Evan Quan <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/pm/amdgpu_pm.c

···
 	} else if (DEVICE_ATTR_IS(pp_power_profile_mode)) {
 		if (amdgpu_dpm_get_power_profile_mode(adev, NULL) == -EOPNOTSUPP)
 			*states = ATTR_STATE_UNSUPPORTED;
+		else if (gc_ver == IP_VERSION(10, 3, 0) && amdgpu_sriov_vf(adev))
+			*states = ATTR_STATE_UNSUPPORTED;
 	}
 
 	switch (gc_ver) {
···
 		    DEVICE_ATTR_IS(pp_dpm_socclk) ||
 		    DEVICE_ATTR_IS(pp_dpm_fclk)) {
 			dev_attr->attr.mode &= ~S_IWUGO;
+			dev_attr->store = NULL;
+		}
+		break;
+	case IP_VERSION(10, 3, 0):
+		if (DEVICE_ATTR_IS(power_dpm_force_performance_level) &&
+		    amdgpu_sriov_vf(adev)) {
+			dev_attr->attr.mode &= ~0222;
 			dev_attr->store = NULL;
 		}
 		break;