drm/amd/pm: fix is_dpm_running() run error on 32bit system

v1:
the C type "unsigned long" size is 32bit on 32bit system,
it will cause code logic error, so replace it with "uint64_t".

v2:
remove duplicate cast operation.
Signed-off-by: Kevin <kevin1.wang@amd.com>
Suggest-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Jiansong Chen <Jiansong.Chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c

@@ -1844,10 +1844,14 @@ static bool arcturus_is_dpm_running(struct smu_context *smu)
 {
 	int ret = 0;
 	uint32_t feature_mask[2];
-	unsigned long feature_enabled;
+	uint64_t feature_enabled;
+
 	ret = smu_cmn_get_enabled_mask(smu, feature_mask, 2);
-	feature_enabled = (unsigned long)((uint64_t)feature_mask[0] |
-			   ((uint64_t)feature_mask[1] << 32));
+	if (ret)
+		return false;
+
+	feature_enabled = (uint64_t)feature_mask[1] << 32 | feature_mask[0];
+
 	return !!(feature_enabled & SMC_DPM_FEATURE);
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c

@@ -1345,10 +1345,14 @@ static bool navi10_is_dpm_running(struct smu_context *smu)
 {
 	int ret = 0;
 	uint32_t feature_mask[2];
-	unsigned long feature_enabled;
+	uint64_t feature_enabled;
+
 	ret = smu_cmn_get_enabled_mask(smu, feature_mask, 2);
-	feature_enabled = (unsigned long)((uint64_t)feature_mask[0] |
-			   ((uint64_t)feature_mask[1] << 32));
+	if (ret)
+		return false;
+
+	feature_enabled = (uint64_t)feature_mask[1] << 32 | feature_mask[0];
+
 	return !!(feature_enabled & SMC_DPM_FEATURE);
 }
 

drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c

@@ -1150,10 +1150,14 @@ static bool sienna_cichlid_is_dpm_running(struct smu_context *smu)
 {
 	int ret = 0;
 	uint32_t feature_mask[2];
-	unsigned long feature_enabled;
+	uint64_t feature_enabled;
+
 	ret = smu_cmn_get_enabled_mask(smu, feature_mask, 2);
-	feature_enabled = (unsigned long)((uint64_t)feature_mask[0] |
-			   ((uint64_t)feature_mask[1] << 32));
+	if (ret)
+		return false;
+
+	feature_enabled = (uint64_t)feature_mask[1] << 32 | feature_mask[0];
+
 	return !!(feature_enabled & SMC_DPM_FEATURE);
 }