diff options
| author | NeilBrown <neilb@suse.de> | 2010-05-22 08:31:36 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2010-05-22 08:31:36 +1000 |
| commit | 19fdb9eefb21b72edbc365b838502780c392bad6 (patch) | |
| tree | deae04c48532d6eab64ed4b0396737bb854b5506 /arch/powerpc/include/asm/page.h | |
| parent | be6800a73aa2f3dc14744c3b80e676d189789f04 (diff) | |
| parent | 3ff195b011d7decf501a4d55aeed312731094796 (diff) | |
Merge commit '3ff195b011d7decf501a4d55aeed312731094796' into for-linus
Conflicts:
drivers/md/md.c
- Resolved conflict in md_update_sb
- Added extra 'NULL' arg to new instance of sysfs_get_dirent.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'arch/powerpc/include/asm/page.h')
| -rw-r--r-- | arch/powerpc/include/asm/page.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index e96d52a516b..53b64be40eb 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -108,8 +108,21 @@ extern phys_addr_t kernstart_addr; #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET - MEMORY_START)) +/* + * On Book-E parts we need __va to parse the device tree and we can't + * determine MEMORY_START until then. However we can determine PHYSICAL_START + * from information at hand (program counter, TLB lookup). + * + * On non-Book-E PPC64 PAGE_OFFSET and MEMORY_START are constants so use + * the other definitions for __va & __pa. + */ +#ifdef CONFIG_BOOKE +#define __va(x) ((void *)(unsigned long)((phys_addr_t)(x) - PHYSICAL_START + KERNELBASE)) +#define __pa(x) ((unsigned long)(x) + PHYSICAL_START - KERNELBASE) +#else +#define __va(x) ((void *)(unsigned long)((phys_addr_t)(x) + PAGE_OFFSET - MEMORY_START)) #define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + MEMORY_START) +#endif /* * Unfortunately the PLT is in the BSS in the PPC32 ELF ABI, |