From 4d5ea702467438bc7af59b053c13e900022d9387 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Mon, 22 Sep 2014 06:32:07 +0400 Subject: xtensa: nommu: provide __invalidate_dcache_page_alias stub Signed-off-by: Max Filippov --- arch/xtensa/include/asm/cacheflush.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/xtensa/include/asm/cacheflush.h') diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h index e72aaca7a77f..01438e97edc6 100644 --- a/arch/xtensa/include/asm/cacheflush.h +++ b/arch/xtensa/include/asm/cacheflush.h @@ -67,6 +67,8 @@ extern void __invalidate_dcache_page_alias(unsigned long, unsigned long); #else static inline void __flush_invalidate_dcache_page_alias(unsigned long virt, unsigned long phys) { } +static inline void __invalidate_dcache_page_alias(unsigned long virt, + unsigned long phys) { } #endif #if defined(CONFIG_MMU) && (ICACHE_WAY_SIZE > PAGE_SIZE) extern void __invalidate_icache_page_alias(unsigned long, unsigned long); -- cgit v1.2.2 From b6cee17b7d5999ae5f9ea51643dc6ea6c3e4efd4 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Mon, 22 Sep 2014 09:54:42 +0400 Subject: xtensa: nommu: don't build most of the cache flushing code Most cache flushing code is only relevant for MMU. Don't build it for nommu configuration. Signed-off-by: Max Filippov --- arch/xtensa/include/asm/cacheflush.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/xtensa/include/asm/cacheflush.h') diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h index 01438e97edc6..5f67ace97b32 100644 --- a/arch/xtensa/include/asm/cacheflush.h +++ b/arch/xtensa/include/asm/cacheflush.h @@ -86,7 +86,8 @@ static inline void __invalidate_icache_page_alias(unsigned long virt, * (see also Documentation/cachetlb.txt) */ -#if (DCACHE_WAY_SIZE > PAGE_SIZE) || defined(CONFIG_SMP) +#if defined(CONFIG_MMU) && \ + ((DCACHE_WAY_SIZE > PAGE_SIZE) || defined(CONFIG_SMP)) #ifdef CONFIG_SMP void flush_cache_all(void); @@ -152,7 +153,7 @@ void local_flush_cache_page(struct vm_area_struct *vma, #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) -#if (DCACHE_WAY_SIZE > PAGE_SIZE) +#if defined(CONFIG_MMU) && (DCACHE_WAY_SIZE > PAGE_SIZE) extern void copy_to_user_page(struct vm_area_struct*, struct page*, unsigned long, void*, const void*, unsigned long); -- cgit v1.2.2