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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-07-28 03:59:34 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-08-20 02:25:06 +0200 |
| commit | 57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea (patch) | |
| tree | 4268a98ad222dbcf790749aed52417eb0a3a2a35 /arch/powerpc/include/asm/page_64.h | |
| parent | powerpc: Add SPR definitions for new 64-bit BookE (diff) | |
| download | linux-57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea.tar.xz linux-57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea.zip | |
powerpc: Add memory management headers for new 64-bit BookE
This adds the PTE and pgtable format definitions, along with changes
to the kernel memory map and other definitions related to implementing
support for 64-bit Book3E. This also shields some asm-offset bits that
are currently only relevant on 32-bit
We also move the definition of the "linux" page size constants to
the common mmu.h file and add a few sizes that are relevant to
embedded processors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/page_64.h')
| -rw-r--r-- | arch/powerpc/include/asm/page_64.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h index 5817a3b747e5..3f17b83f55a1 100644 --- a/arch/powerpc/include/asm/page_64.h +++ b/arch/powerpc/include/asm/page_64.h @@ -135,12 +135,22 @@ extern void slice_set_range_psize(struct mm_struct *mm, unsigned long start, #endif /* __ASSEMBLY__ */ #else #define slice_init() +#ifdef CONFIG_PPC_STD_MMU_64 #define get_slice_psize(mm, addr) ((mm)->context.user_psize) #define slice_set_user_psize(mm, psize) \ do { \ (mm)->context.user_psize = (psize); \ (mm)->context.sllp = SLB_VSID_USER | mmu_psize_defs[(psize)].sllp; \ } while (0) +#else /* CONFIG_PPC_STD_MMU_64 */ +#ifdef CONFIG_PPC_64K_PAGES +#define get_slice_psize(mm, addr) MMU_PAGE_64K +#else /* CONFIG_PPC_64K_PAGES */ +#define get_slice_psize(mm, addr) MMU_PAGE_4K +#endif /* !CONFIG_PPC_64K_PAGES */ +#define slice_set_user_psize(mm, psize) do { BUG(); } while(0) +#endif /* !CONFIG_PPC_STD_MMU_64 */ + #define slice_set_range_psize(mm, start, len, psize) \ slice_set_user_psize((mm), (psize)) #define slice_mm_new_context(mm) 1 |