drm/amdgpu/powerplay: Only apply optimized mclk dpm policy on polaris

Leads to improper dpm on older parts.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1353
Fixes: 8d89b96f ("drm/amd/powerplay: optimize the mclk dpm policy settings")
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c

@@ -1717,18 +1717,24 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 	data->current_profile_setting.sclk_down_hyst = 100;
 	data->current_profile_setting.sclk_activity = SMU7_SCLK_TARGETACTIVITY_DFLT;
 	data->current_profile_setting.bupdate_mclk = 1;
-	if (adev->gmc.vram_width == 256) {
-		data->current_profile_setting.mclk_up_hyst = 10;
-		data->current_profile_setting.mclk_down_hyst = 60;
-		data->current_profile_setting.mclk_activity = 25;
-	} else if (adev->gmc.vram_width == 128) {
-		data->current_profile_setting.mclk_up_hyst = 5;
-		data->current_profile_setting.mclk_down_hyst = 16;
-		data->current_profile_setting.mclk_activity = 20;
-	} else if (adev->gmc.vram_width == 64) {
-		data->current_profile_setting.mclk_up_hyst = 3;
-		data->current_profile_setting.mclk_down_hyst = 16;
-		data->current_profile_setting.mclk_activity = 20;
+	if (hwmgr->chip_id >= CHIP_POLARIS10) {
+		if (adev->gmc.vram_width == 256) {
+			data->current_profile_setting.mclk_up_hyst = 10;
+			data->current_profile_setting.mclk_down_hyst = 60;
+			data->current_profile_setting.mclk_activity = 25;
+		} else if (adev->gmc.vram_width == 128) {
+			data->current_profile_setting.mclk_up_hyst = 5;
+			data->current_profile_setting.mclk_down_hyst = 16;
+			data->current_profile_setting.mclk_activity = 20;
+		} else if (adev->gmc.vram_width == 64) {
+			data->current_profile_setting.mclk_up_hyst = 3;
+			data->current_profile_setting.mclk_down_hyst = 16;
+			data->current_profile_setting.mclk_activity = 20;
+		}
+	} else {
+		data->current_profile_setting.mclk_up_hyst = 0;
+		data->current_profile_setting.mclk_down_hyst = 100;
+		data->current_profile_setting.mclk_activity = SMU7_MCLK_TARGETACTIVITY_DFLT;
 	}
 	hwmgr->workload_mask = 1 << hwmgr->workload_prority[PP_SMC_POWER_PROFILE_FULLSCREEN3D];
 	hwmgr->power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;