thermal/drivers/int340x: processor_thermal: Suppot 64 bit RFIM responses

commit aeb58c860dc516794fdf7ff89d96ead2644d5889 upstream.

Some of the RFIM mail box command returns 64 bit values. So enhance
mailbox interface to return 64 bit values and use them for RFIM
commands.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Fixes: 5d6fbc96bd36 ("thermal/drivers/int340x: processor_thermal: Export additional attributes")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 19 insertions, 15 deletions

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h
index c1d8de6dc3d1..be27f633e40a 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h
@@ -80,7 +80,7 @@ void proc_thermal_rfim_remove(struct pci_dev *pdev);
 int proc_thermal_mbox_add(struct pci_dev *pdev, struct proc_thermal_device *proc_priv);
 void proc_thermal_mbox_remove(struct pci_dev *pdev);
 
-int processor_thermal_send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u32 *cmd_resp);
+int processor_thermal_send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u64 *cmd_resp);
 int proc_thermal_add(struct device *dev, struct proc_thermal_device *priv);
 void proc_thermal_remove(struct proc_thermal_device *proc_priv);
 int proc_thermal_suspend(struct device *dev);
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_mbox.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_mbox.c
index 66cd0190bc03..01008ae00e7f 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_mbox.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_mbox.c
@@ -24,7 +24,7 @@
 
 static DEFINE_MUTEX(mbox_lock);
 
-static int send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u32 *cmd_resp)
+static int send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u64 *cmd_resp)
 {
 	struct proc_thermal_device *proc_priv;
 	u32 retries, data;
@@ -69,12 +69,16 @@ static int send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u32 *cm
 			goto unlock_mbox;
 		}
 
-		if (cmd_id == MBOX_CMD_WORKLOAD_TYPE_READ) {
-			data = readl((void __iomem *) (proc_priv->mmio_base + MBOX_OFFSET_DATA));
-			*cmd_resp = data & 0xff;
-		}
-
 		ret = 0;
+
+		if (!cmd_resp)
+			break;
+
+		if (cmd_id == MBOX_CMD_WORKLOAD_TYPE_READ)
+			*cmd_resp = readl((void __iomem *) (proc_priv->mmio_base + MBOX_OFFSET_DATA));
+		else
+			*cmd_resp = readq((void __iomem *) (proc_priv->mmio_base + MBOX_OFFSET_DATA));
+
 		break;
 	} while (--retries);
 
@@ -83,7 +87,7 @@ unlock_mbox:
 	return ret;
 }
 
-int processor_thermal_send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u32 *cmd_resp)
+int processor_thermal_send_mbox_cmd(struct pci_dev *pdev, u16 cmd_id, u32 cmd_data, u64 *cmd_resp)
 {
 	return send_mbox_cmd(pdev, cmd_id, cmd_data, cmd_resp);
 }
@@ -154,7 +158,7 @@ static ssize_t workload_type_show(struct device *dev,
 				   char *buf)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	u32 cmd_resp;
+	u64 cmd_resp;
 	int ret;
 
 	ret = send_mbox_cmd(pdev, MBOX_CMD_WORKLOAD_TYPE_READ, 0, &cmd_resp);
@@ -188,7 +192,7 @@ static bool workload_req_created;
 
 int proc_thermal_mbox_add(struct pci_dev *pdev, struct proc_thermal_device *proc_priv)
 {
-	u32 cmd_resp;
+	u64 cmd_resp;
 	int ret;
 
 	/* Check if there is a mailbox support, if fails return success */
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
index 3b3e81f99a34..e693ec8234fb 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
@@ -195,7 +195,7 @@ static ssize_t rfi_restriction_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	u16 cmd_id = 0x0008;
-	u32 cmd_resp;
+	u64 cmd_resp;
 	u32 input;
 	int ret;
 
@@ -215,14 +215,14 @@ static ssize_t rfi_restriction_show(struct device *dev,
 				    char *buf)
 {
 	u16 cmd_id = 0x0007;
-	u32 cmd_resp;
+	u64 cmd_resp;
 	int ret;
 
 	ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, 0, &cmd_resp);
 	if (ret)
 		return ret;
 
-	return sprintf(buf, "%u\n", cmd_resp);
+	return sprintf(buf, "%llu\n", cmd_resp);
 }
 
 static ssize_t ddr_data_rate_show(struct device *dev,
@@ -230,14 +230,14 @@ static ssize_t ddr_data_rate_show(struct device *dev,
 				  char *buf)
 {
 	u16 cmd_id = 0x0107;
-	u32 cmd_resp;
+	u64 cmd_resp;
 	int ret;
 
 	ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, 0, &cmd_resp);
 	if (ret)
 		return ret;
 
-	return sprintf(buf, "%u\n", cmd_resp);
+	return sprintf(buf, "%llu\n", cmd_resp);
 }
 
 static DEVICE_ATTR_RW(rfi_restriction);