diff options
author | Ingo Molnar <mingo@elte.hu> | 2010-10-08 10:46:27 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2010-10-08 10:46:27 +0200 |
commit | 7cd2541cf2395962daf98ec32a141aba3398a9b2 (patch) | |
tree | 3c8bebb277462ba0de9d44233a970d34056dc45e /arch/mn10300/mm/cache.c | |
parent | c62f981f9309486ba5546edbb5925f71e441fa65 (diff) | |
parent | cb655d0f3d57c23db51b981648e452988c0223f9 (diff) |
Merge commit 'v2.6.36-rc7' into perf/core
Conflicts:
arch/x86/kernel/module.c
Merge reason: Resolve the conflict, pick up fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/mn10300/mm/cache.c')
-rw-r--r-- | arch/mn10300/mm/cache.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/mn10300/mm/cache.c b/arch/mn10300/mm/cache.c index 1b76719ec1c..9261217e8d2 100644 --- a/arch/mn10300/mm/cache.c +++ b/arch/mn10300/mm/cache.c @@ -54,13 +54,30 @@ EXPORT_SYMBOL(flush_icache_page); void flush_icache_range(unsigned long start, unsigned long end) { #ifdef CONFIG_MN10300_CACHE_WBACK - unsigned long addr, size, off; + unsigned long addr, size, base, off; struct page *page; pgd_t *pgd; pud_t *pud; pmd_t *pmd; pte_t *ppte, pte; + if (end > 0x80000000UL) { + /* addresses above 0xa0000000 do not go through the cache */ + if (end > 0xa0000000UL) { + end = 0xa0000000UL; + if (start >= end) + return; + } + + /* kernel addresses between 0x80000000 and 0x9fffffff do not + * require page tables, so we just map such addresses directly */ + base = (start >= 0x80000000UL) ? start : 0x80000000UL; + mn10300_dcache_flush_range(base, end); + if (base == start) + goto invalidate; + end = base; + } + for (; start < end; start += size) { /* work out how much of the page to flush */ off = start & (PAGE_SIZE - 1); @@ -104,6 +121,7 @@ void flush_icache_range(unsigned long start, unsigned long end) } #endif +invalidate: mn10300_icache_inv(); } EXPORT_SYMBOL(flush_icache_range); |