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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sunxi-rsb.h (2956B)

      1/*
      2 * Allwinner Reduced Serial Bus Driver
      3 *
      4 * Copyright (c) 2015 Chen-Yu Tsai
      5 *
      6 * Author: Chen-Yu Tsai <wens@csie.org>
      7 *
      8 * This file is licensed under the terms of the GNU General Public
      9 * License version 2.  This program is licensed "as is" without any
     10 * warranty of any kind, whether express or implied.
     11 */
     12#ifndef _SUNXI_RSB_H
     13#define _SUNXI_RSB_H
     14
     15#include <linux/device.h>
     16#include <linux/regmap.h>
     17#include <linux/types.h>
     18
     19struct sunxi_rsb;
     20
     21/**
     22 * struct sunxi_rsb_device - Basic representation of an RSB device
     23 * @dev:	Driver model representation of the device.
     24 * @ctrl:	RSB controller managing the bus hosting this device.
     25 * @rtaddr:	This device's runtime address
     26 * @hwaddr:	This device's hardware address
     27 */
     28struct sunxi_rsb_device {
     29	struct device		dev;
     30	struct sunxi_rsb	*rsb;
     31	int			irq;
     32	u8			rtaddr;
     33	u16			hwaddr;
     34};
     35
     36static inline struct sunxi_rsb_device *to_sunxi_rsb_device(struct device *d)
     37{
     38	return container_of(d, struct sunxi_rsb_device, dev);
     39}
     40
     41static inline void *sunxi_rsb_device_get_drvdata(const struct sunxi_rsb_device *rdev)
     42{
     43	return dev_get_drvdata(&rdev->dev);
     44}
     45
     46static inline void sunxi_rsb_device_set_drvdata(struct sunxi_rsb_device *rdev,
     47						void *data)
     48{
     49	dev_set_drvdata(&rdev->dev, data);
     50}
     51
     52/**
     53 * struct sunxi_rsb_driver - RSB slave device driver
     54 * @driver:	RSB device drivers should initialize name and owner field of
     55 *		this structure.
     56 * @probe:	binds this driver to a RSB device.
     57 * @remove:	unbinds this driver from the RSB device.
     58 */
     59struct sunxi_rsb_driver {
     60	struct device_driver driver;
     61	int (*probe)(struct sunxi_rsb_device *rdev);
     62	void (*remove)(struct sunxi_rsb_device *rdev);
     63};
     64
     65static inline struct sunxi_rsb_driver *to_sunxi_rsb_driver(struct device_driver *d)
     66{
     67	return container_of(d, struct sunxi_rsb_driver, driver);
     68}
     69
     70int sunxi_rsb_driver_register(struct sunxi_rsb_driver *rdrv);
     71
     72/**
     73 * sunxi_rsb_driver_unregister() - unregister an RSB client driver
     74 * @rdrv:	the driver to unregister
     75 */
     76static inline void sunxi_rsb_driver_unregister(struct sunxi_rsb_driver *rdrv)
     77{
     78	if (rdrv)
     79		driver_unregister(&rdrv->driver);
     80}
     81
     82#define module_sunxi_rsb_driver(__sunxi_rsb_driver) \
     83	module_driver(__sunxi_rsb_driver, sunxi_rsb_driver_register, \
     84			sunxi_rsb_driver_unregister)
     85
     86struct regmap *__devm_regmap_init_sunxi_rsb(struct sunxi_rsb_device *rdev,
     87					    const struct regmap_config *config,
     88					    struct lock_class_key *lock_key,
     89					    const char *lock_name);
     90
     91/**
     92 * devm_regmap_init_sunxi_rsb(): Initialise managed register map
     93 *
     94 * @rdev: Device that will be interacted with
     95 * @config: Configuration for register map
     96 *
     97 * The return value will be an ERR_PTR() on error or a valid pointer
     98 * to a struct regmap.  The regmap will be automatically freed by the
     99 * device management code.
    100 */
    101#define devm_regmap_init_sunxi_rsb(rdev, config)			\
    102	__regmap_lockdep_wrapper(__devm_regmap_init_sunxi_rsb, #config,	\
    103				 rdev, config)
    104
    105#endif /* _SUNXI_RSB_H */