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| author | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
| commit | 47871889c601d8199c51a4086f77eebd77c29b0b (patch) | |
| tree | 40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /arch/sh/include/asm/pgtable-2level.h | |
| parent | c16cc0b464b8876cfd57ce1c1dbcb6f9a6a0bce3 (diff) | |
| parent | 30ff056c42c665b9ea535d8515890857ae382540 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/firmware/iscsi_ibft.c
Diffstat (limited to 'arch/sh/include/asm/pgtable-2level.h')
| -rw-r--r-- | arch/sh/include/asm/pgtable-2level.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/sh/include/asm/pgtable-2level.h b/arch/sh/include/asm/pgtable-2level.h new file mode 100644 index 000000000000..19bd89db17e7 --- /dev/null +++ b/arch/sh/include/asm/pgtable-2level.h @@ -0,0 +1,23 @@ +#ifndef __ASM_SH_PGTABLE_2LEVEL_H +#define __ASM_SH_PGTABLE_2LEVEL_H + +#include <asm-generic/pgtable-nopmd.h> + +/* + * traditional two-level paging structure + */ +#define PAGETABLE_LEVELS 2 + +/* PTE bits */ +#define PTE_MAGNITUDE 2 /* 32-bit PTEs */ + +#define PTE_SHIFT PAGE_SHIFT +#define PTE_BITS (PTE_SHIFT - PTE_MAGNITUDE) + +/* PGD bits */ +#define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS) + +#define PTRS_PER_PGD (PAGE_SIZE / (1 << PTE_MAGNITUDE)) +#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) + +#endif /* __ASM_SH_PGTABLE_2LEVEL_H */ |