1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h
new file mode 100644
index 000000000000..36b5ceea9ac0
--- /dev/null
+++ b/drivers/platform/x86/amd/hsmp/hsmp.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AMD HSMP Platform Driver
+ * Copyright (c) 2024, AMD.
+ * All Rights Reserved.
+ *
+ * Header file for HSMP driver
+ */
+
+#ifndef HSMP_H
+#define HSMP_H
+
+#include <linux/compiler_types.h>
+#include <linux/device.h>
+#include <linux/hwmon.h>
+#include <linux/miscdevice.h>
+#include <linux/pci.h>
+#include <linux/semaphore.h>
+#include <linux/sysfs.h>
+
+#define HSMP_METRICS_TABLE_NAME	"metrics_bin"
+
+#define HSMP_ATTR_GRP_NAME_SIZE	10
+
+#define HSMP_CDEV_NAME		"hsmp_cdev"
+#define HSMP_DEVNODE_NAME	"hsmp"
+#define ACPI_HSMP_DEVICE_HID    "AMDI0097"
+
+#define DRIVER_VERSION		"2.5"
+
+struct hsmp_mbaddr_info {
+	u32 base_addr;
+	u32 msg_id_off;
+	u32 msg_resp_off;
+	u32 msg_arg_off;
+	u32 size;
+};
+
+struct hsmp_socket {
+	struct bin_attribute hsmp_attr;
+	struct hsmp_mbaddr_info mbinfo;
+	void __iomem *metric_tbl_addr;
+	void __iomem *virt_base_addr;
+	struct semaphore hsmp_sem;
+	char name[HSMP_ATTR_GRP_NAME_SIZE];
+	struct device *dev;
+	u16 sock_ind;
+	int (*amd_hsmp_rdwr)(struct hsmp_socket *sock, u32 off, u32 *val, bool rw);
+};
+
+struct hsmp_plat_device {
+	struct miscdevice mdev;
+	struct hsmp_socket *sock;
+	u32 proto_ver;
+	u16 num_sockets;
+	bool is_probed;
+};
+
+int hsmp_cache_proto_ver(u16 sock_ind);
+int hsmp_test(u16 sock_ind, u32 value);
+long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
+void hsmp_misc_deregister(void);
+int hsmp_misc_register(struct device *dev);
+int hsmp_get_tbl_dram_base(u16 sock_ind);
+ssize_t hsmp_metric_tbl_read(struct hsmp_socket *sock, char *buf, size_t size);
+struct hsmp_plat_device *get_hsmp_pdev(void);
+#if IS_REACHABLE(CONFIG_HWMON)
+int hsmp_create_sensor(struct device *dev, u16 sock_ind);
+#else
+static inline int hsmp_create_sensor(struct device *dev, u16 sock_ind) { return 0; }
+#endif
+int hsmp_msg_get_nargs(u16 sock_ind, u32 msg_id, u32 *data, u8 num_args);
+#endif /* HSMP_H */