diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ia64/sn/kernel/sn2/cache.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/ia64/sn/kernel/sn2/cache.c')
-rw-r--r-- | arch/ia64/sn/kernel/sn2/cache.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/sn2/cache.c b/arch/ia64/sn/kernel/sn2/cache.c new file mode 100644 index 000000000000..bc3cfa17cd0f --- /dev/null +++ b/arch/ia64/sn/kernel/sn2/cache.c @@ -0,0 +1,34 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001-2003 Silicon Graphics, Inc. All rights reserved. + * + */ +#include <linux/module.h> +#include <asm/pgalloc.h> + +/** + * sn_flush_all_caches - flush a range of address from all caches (incl. L4) + * @flush_addr: identity mapped region 7 address to start flushing + * @bytes: number of bytes to flush + * + * Flush a range of addresses from all caches including L4. + * All addresses fully or partially contained within + * @flush_addr to @flush_addr + @bytes are flushed + * from the all caches. + */ +void +sn_flush_all_caches(long flush_addr, long bytes) +{ + flush_icache_range(flush_addr, flush_addr+bytes); + /* + * The last call may have returned before the caches + * were actually flushed, so we call it again to make + * sure. + */ + flush_icache_range(flush_addr, flush_addr+bytes); + mb(); +} +EXPORT_SYMBOL(sn_flush_all_caches); |