diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-09-22 09:54:42 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-10-21 13:28:50 +0400 |
| commit | b6cee17b7d5999ae5f9ea51643dc6ea6c3e4efd4 (patch) | |
| tree | 84b097752753fb8edbd03c3147e80c1bb7ccf588 /arch/xtensa | |
| parent | d10fa7cf3dc0b38995a691c3f4e9f90acaaa05f2 (diff) | |
| download | blackbird-op-linux-b6cee17b7d5999ae5f9ea51643dc6ea6c3e4efd4.tar.gz blackbird-op-linux-b6cee17b7d5999ae5f9ea51643dc6ea6c3e4efd4.zip | |
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 <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/cacheflush.h | 5 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/page.h | 2 | ||||
| -rw-r--r-- | arch/xtensa/mm/Makefile | 4 |
3 files changed, 6 insertions, 5 deletions
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); diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h index abe24c6f8b2f..619a51bb0163 100644 --- a/arch/xtensa/include/asm/page.h +++ b/arch/xtensa/include/asm/page.h @@ -145,7 +145,7 @@ extern void copy_page(void *to, void *from); * some extra work */ -#if DCACHE_WAY_SIZE > PAGE_SIZE +#if defined(CONFIG_MMU) && DCACHE_WAY_SIZE > PAGE_SIZE extern void clear_page_alias(void *vaddr, unsigned long paddr); extern void copy_page_alias(void *to, void *from, unsigned long to_paddr, unsigned long from_paddr); diff --git a/arch/xtensa/mm/Makefile b/arch/xtensa/mm/Makefile index f54f78e24d7b..e601e2fbe8e6 100644 --- a/arch/xtensa/mm/Makefile +++ b/arch/xtensa/mm/Makefile @@ -2,6 +2,6 @@ # Makefile for the Linux/Xtensa-specific parts of the memory manager. # -obj-y := init.o cache.o misc.o -obj-$(CONFIG_MMU) += fault.o mmu.o tlb.o +obj-y := init.o misc.o +obj-$(CONFIG_MMU) += cache.o fault.o mmu.o tlb.o obj-$(CONFIG_HIGHMEM) += highmem.o |
