diff options
| author | Linus Torvalds <torvalds@woody.osdl.org> | 2006-11-22 16:36:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-11-22 16:36:33 -0800 |
| commit | 490a6e245e36ce27e10c32e1c3129fd782d3d1f3 (patch) | |
| tree | aa9aa577215f65fc775ced09a99d5ce02e02d2a5 /arch | |
| parent | 66c669baa7d70b8d135da67f36c8dba12cea71b8 (diff) | |
| parent | ec7080d185a9b79581bf1dbe300e877719c0b1a9 (diff) | |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[PATCH] make au1xxx-ide compile again
[MIPS] Hack for SB1 cache issues
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/mm/c-sb1.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/mips/mm/c-sb1.c b/arch/mips/mm/c-sb1.c index d0ddb4a768a..3a8afd47fea 100644 --- a/arch/mips/mm/c-sb1.c +++ b/arch/mips/mm/c-sb1.c @@ -19,6 +19,7 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/init.h> +#include <linux/hardirq.h> #include <asm/asm.h> #include <asm/bootinfo.h> @@ -242,6 +243,25 @@ void sb1_flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsign __attribute__((alias("local_sb1_flush_cache_page"))); #endif +#ifdef CONFIG_SMP +static void sb1_flush_cache_data_page_ipi(void *info) +{ + unsigned long start = (unsigned long)info; + + __sb1_writeback_inv_dcache_range(start, start + PAGE_SIZE); +} + +static void sb1_flush_cache_data_page(unsigned long addr) +{ + if (in_atomic()) + __sb1_writeback_inv_dcache_range(addr, addr + PAGE_SIZE); + else + on_each_cpu(sb1_flush_cache_data_page_ipi, (void *) addr, 1, 1); +} +#else +void sb1_flush_cache_data_page(unsigned long) + __attribute__((alias("local_sb1_flush_cache_data_page"))); +#endif /* * Invalidate all caches on this CPU @@ -481,7 +501,7 @@ void sb1_cache_init(void) flush_cache_sigtramp = sb1_flush_cache_sigtramp; local_flush_data_cache_page = (void *) sb1_nop; - flush_data_cache_page = (void *) sb1_nop; + flush_data_cache_page = sb1_flush_cache_data_page; /* Full flush */ __flush_cache_all = sb1___flush_cache_all; |