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| author | Johannes Weiner <jw@emlix.com> | 2009-03-04 18:21:31 +0300 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2009-04-03 10:41:50 +0400 |
| commit | e5083a63b6a8546c5fe1e571fe529e3939787ec2 (patch) | |
| tree | 5c11db5b0a924f8bcfc404c202630d37ccfd7c3c /arch/xtensa/include/asm/page.h | |
| parent | 7789f89af9e8e426d7a7f173cf465a4fcadba7dd (diff) | |
| download | linux-e5083a63b6a8546c5fe1e571fe529e3939787ec2.tar.xz | |
xtensa: nommu support
Add support for !CONFIG_MMU setups.
Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/include/asm/page.h')
| -rw-r--r-- | arch/xtensa/include/asm/page.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h index a5a5d33c15d0..17e0c5383b10 100644 --- a/arch/xtensa/include/asm/page.h +++ b/arch/xtensa/include/asm/page.h @@ -33,8 +33,14 @@ #define PAGE_SIZE (__XTENSA_UL_CONST(1) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) +#ifdef CONFIG_MMU #define PAGE_OFFSET XCHAL_KSEG_CACHED_VADDR #define MAX_MEM_PFN XCHAL_KSEG_SIZE +#else +#define PAGE_OFFSET 0 +#define MAX_MEM_PFN (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE) +#endif + #define PGTABLE_START 0x80000000 /* @@ -165,8 +171,9 @@ extern void copy_user_page(void*, void*, unsigned long, struct page*); #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) +#ifdef CONFIG_MMU #define WANT_PAGE_VIRTUAL - +#endif #endif /* __ASSEMBLY__ */ |