cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

mc146818rtc.h (720B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Machine dependent access functions for RTC registers.
      4 */
      5#ifndef _ASM_MC146818RTC_H
      6#define _ASM_MC146818RTC_H
      7
      8#include <linux/io.h>
      9#include <linux/kernel.h>
     10
     11#define RTC_IRQ BUILD_BUG_ON(1)
     12
     13#ifndef RTC_PORT
     14#define RTC_PORT(x)	(0x70 + (x))
     15#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
     16#endif
     17
     18/*
     19 * The yet supported machines all access the RTC index register via
     20 * an ISA port access but the way to access the date register differs ...
     21 */
     22#define CMOS_READ(addr) ({ \
     23outb_p((addr),RTC_PORT(0)); \
     24inb_p(RTC_PORT(1)); \
     25})
     26#define CMOS_WRITE(val, addr) ({ \
     27outb_p((addr),RTC_PORT(0)); \
     28outb_p((val),RTC_PORT(1)); \
     29})
     30
     31#endif /* _ASM_MC146818RTC_H */