diff options
Diffstat (limited to 'arch/ia64/sn/kernel/sn2/cache.c')
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/cache.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/ia64/sn/kernel/sn2/cache.c b/arch/ia64/sn/kernel/sn2/cache.c index bc3cfa1..2862cb3 100644 --- a/arch/ia64/sn/kernel/sn2/cache.c +++ b/arch/ia64/sn/kernel/sn2/cache.c @@ -3,11 +3,12 @@ * 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. + * Copyright (C) 2001-2003, 2006 Silicon Graphics, Inc. All rights reserved. * */ #include <linux/module.h> #include <asm/pgalloc.h> +#include <asm/sn/arch.h> /** * sn_flush_all_caches - flush a range of address from all caches (incl. L4) @@ -17,18 +18,24 @@ * 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. + * from all caches. */ void sn_flush_all_caches(long flush_addr, long bytes) { - flush_icache_range(flush_addr, flush_addr+bytes); + unsigned long addr = flush_addr; + + /* SHub1 requires a cached address */ + if (is_shub1() && (addr & RGN_BITS) == RGN_BASE(RGN_UNCACHED)) + addr = (addr - RGN_BASE(RGN_UNCACHED)) + RGN_BASE(RGN_KERNEL); + + flush_icache_range(addr, 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); + flush_icache_range(addr, addr + bytes); mb(); } EXPORT_SYMBOL(sn_flush_all_caches); |