From d9cdc901af0f92da7f90c750d8c187f5500be067 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 17 Jun 2011 16:20:28 +0100 Subject: MIPS: cache: Provide cache flush operations for XFS Until now flush_kernel_vmap_range() and invalidate_kernel_vmap_range() did not exist on MIPS resulting in heavy cache corruption on XFS filesystems. Left for the post-3.0 time: optimization and make this work with highmem, too. Since the combination of highmem + cache aliases atm doesn't work this isn't a regression. Signed-off-by: Ralf Baechle Patchwork: https://patchwork.linux-mips.org/patch/2505/ --- arch/mips/mm/c-tx39.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/mips/mm/c-tx39.c') diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index d352fad3e45..a43c197ccf8 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c @@ -253,6 +253,11 @@ static void tx39_flush_icache_range(unsigned long start, unsigned long end) } } +static void tx39_flush_kernel_vmap_range(unsigned long vaddr, int size) +{ + BUG(); +} + static void tx39_dma_cache_wback_inv(unsigned long addr, unsigned long size) { unsigned long end; @@ -394,6 +399,8 @@ void __cpuinit tx39_cache_init(void) flush_icache_range = tx39_flush_icache_range; local_flush_icache_range = tx39_flush_icache_range; + __flush_kernel_vmap_range = tx39_flush_kernel_vmap_range; + flush_cache_sigtramp = tx39_flush_cache_sigtramp; local_flush_data_cache_page = local_tx39_flush_data_cache_page; flush_data_cache_page = tx39_flush_data_cache_page; -- cgit v1.2.3-70-g09d2