diff options
Diffstat (limited to 'include/asm-sh/pgtable.h')
| -rw-r--r-- | include/asm-sh/pgtable.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 8f1e8be8d..6ab3ba8 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -29,6 +29,23 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #endif /* !__ASSEMBLY__ */ /* + * Effective and physical address definitions, to aid with sign + * extension. + */ +#define NEFF 32 +#define NEFF_SIGN (1LL << (NEFF - 1)) +#define NEFF_MASK (-1LL << NEFF) + +#ifdef CONFIG_29BIT +#define NPHYS 29 +#else +#define NPHYS 32 +#endif + +#define NPHYS_SIGN (1LL << (NPHYS - 1)) +#define NPHYS_MASK (-1LL << NPHYS) + +/* * traditional two-level paging structure */ /* PTE bits */ |