67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* AMD HSMP Platform Driver
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* Copyright (c) 2024, AMD.
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* All Rights Reserved.
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*
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* Header file for HSMP driver
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*/
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#ifndef HSMP_H
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#define HSMP_H
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#include <linux/compiler_types.h>
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#include <linux/device.h>
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#include <linux/miscdevice.h>
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#include <linux/pci.h>
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#include <linux/semaphore.h>
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#include <linux/sysfs.h>
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#define HSMP_METRICS_TABLE_NAME "metrics_bin"
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#define HSMP_ATTR_GRP_NAME_SIZE 10
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#define MAX_AMD_SOCKETS 8
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#define HSMP_CDEV_NAME "hsmp_cdev"
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#define HSMP_DEVNODE_NAME "hsmp"
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struct hsmp_mbaddr_info {
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u32 base_addr;
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u32 msg_id_off;
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u32 msg_resp_off;
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u32 msg_arg_off;
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u32 size;
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};
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struct hsmp_socket {
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struct bin_attribute hsmp_attr;
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struct hsmp_mbaddr_info mbinfo;
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void __iomem *metric_tbl_addr;
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void __iomem *virt_base_addr;
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struct semaphore hsmp_sem;
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char name[HSMP_ATTR_GRP_NAME_SIZE];
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struct pci_dev *root;
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struct device *dev;
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u16 sock_ind;
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int (*amd_hsmp_rdwr)(struct hsmp_socket *sock, u32 off, u32 *val, bool rw);
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};
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struct hsmp_plat_device {
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struct miscdevice mdev;
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struct hsmp_socket *sock;
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u32 proto_ver;
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u16 num_sockets;
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bool is_probed;
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};
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int hsmp_cache_proto_ver(u16 sock_ind);
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int hsmp_test(u16 sock_ind, u32 value);
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long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
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void hsmp_misc_deregister(void);
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int hsmp_misc_register(struct device *dev);
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int hsmp_get_tbl_dram_base(u16 sock_ind);
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ssize_t hsmp_metric_tbl_read(struct hsmp_socket *sock, char *buf, size_t size);
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struct hsmp_plat_device *get_hsmp_pdev(void);
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#endif /* HSMP_H */
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