mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race
[linux/fpc-iii.git] / arch / m32r / include / asm / mc146818rtc.h
blob4effa4704347b6316b41f84a17cac40923fae32a
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
8 #include <asm/io.h>
10 #ifndef RTC_PORT
11 #define RTC_PORT(x) ((x))
12 #define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
13 #endif
16 * The yet supported machines all access the RTC index register via
17 * an ISA port access but the way to access the date register differs ...
19 #define CMOS_READ(addr) ({ \
20 outb_p((addr),RTC_PORT(0)); \
21 inb_p(RTC_PORT(1)); \
23 #define CMOS_WRITE(val, addr) ({ \
24 outb_p((addr),RTC_PORT(0)); \
25 outb_p((val),RTC_PORT(1)); \
28 #define RTC_IRQ 8
30 #endif /* _ASM_MC146818RTC_H */