mirror of
https://github.com/torvalds/linux.git
synced 2024-12-13 22:53:20 +00:00
99a5b2878b
Flushing caches sometimes requires anomaly workarounds which require supervisor-only insns. Normally we don't need to flush caches from userspace so this isn't a problem, but when gcc generates trampolines on the stack, we do. So add a new syscall for gcc to use modeled after the mips version. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
21 lines
478 B
C
21 lines
478 B
C
/*
|
|
* based on the mips/cachectl.h
|
|
*
|
|
* Copyright 2010 Analog Devices Inc.
|
|
* Copyright (C) 1994, 1995, 1996 by Ralf Baechle
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#ifndef _ASM_CACHECTL
|
|
#define _ASM_CACHECTL
|
|
|
|
/*
|
|
* Options for cacheflush system call
|
|
*/
|
|
#define ICACHE (1<<0) /* flush instruction cache */
|
|
#define DCACHE (1<<1) /* writeback and flush data cache */
|
|
#define BCACHE (ICACHE|DCACHE) /* flush both caches */
|
|
|
|
#endif /* _ASM_CACHECTL */
|