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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ssbi.h (726B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/* Copyright (C) 2010 Google, Inc.
      3 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
      4 * Author: Dima Zavin <dima@android.com>
      5 */
      6
      7#ifndef _LINUX_SSBI_H
      8#define _LINUX_SSBI_H
      9
     10#include <linux/types.h>
     11
     12int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len);
     13int ssbi_read(struct device *dev, u16 addr, u8 *buf, int len);
     14
     15static inline int
     16ssbi_reg_read(void *context, unsigned int reg, unsigned int *val)
     17{
     18	int ret;
     19	u8 v;
     20
     21	ret = ssbi_read(context, reg, &v, 1);
     22	if (!ret)
     23		*val = v;
     24
     25	return ret;
     26}
     27
     28static inline int
     29ssbi_reg_write(void *context, unsigned int reg, unsigned int val)
     30{
     31	u8 v = val;
     32	return ssbi_write(context, reg, &v, 1);
     33}
     34
     35#endif