cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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wmi.h (1620B)


      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * wmi.h - ACPI WMI interface
      4 *
      5 * Copyright (c) 2015 Andrew Lutomirski
      6 */
      7
      8#ifndef _LINUX_WMI_H
      9#define _LINUX_WMI_H
     10
     11#include <linux/device.h>
     12#include <linux/acpi.h>
     13#include <linux/mod_devicetable.h>
     14#include <uapi/linux/wmi.h>
     15
     16struct wmi_device {
     17	struct device dev;
     18
     19	 /* True for data blocks implementing the Set Control Method */
     20	bool setable;
     21};
     22
     23/* evaluate the ACPI method associated with this device */
     24extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev,
     25					  u8 instance, u32 method_id,
     26					  const struct acpi_buffer *in,
     27					  struct acpi_buffer *out);
     28
     29/* Caller must kfree the result. */
     30extern union acpi_object *wmidev_block_query(struct wmi_device *wdev,
     31					     u8 instance);
     32
     33extern int set_required_buffer_size(struct wmi_device *wdev, u64 length);
     34
     35struct wmi_driver {
     36	struct device_driver driver;
     37	const struct wmi_device_id *id_table;
     38	bool no_notify_data;
     39
     40	int (*probe)(struct wmi_device *wdev, const void *context);
     41	void (*remove)(struct wmi_device *wdev);
     42	void (*notify)(struct wmi_device *device, union acpi_object *data);
     43	long (*filter_callback)(struct wmi_device *wdev, unsigned int cmd,
     44				struct wmi_ioctl_buffer *arg);
     45};
     46
     47extern int __must_check __wmi_driver_register(struct wmi_driver *driver,
     48					      struct module *owner);
     49extern void wmi_driver_unregister(struct wmi_driver *driver);
     50#define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE)
     51
     52#define module_wmi_driver(__wmi_driver) \
     53	module_driver(__wmi_driver, wmi_driver_register, \
     54		      wmi_driver_unregister)
     55
     56#endif