diff options
Diffstat (limited to 'include/asm-s390/pgtable.h')
| -rw-r--r-- | include/asm-s390/pgtable.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index f8347ce9c5a1..fd336f2e2a7a 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -234,6 +234,15 @@ extern char empty_zero_page[PAGE_SIZE]; #define _PAGE_TYPE_EX_RW 0x002 /* + * Only four types for huge pages, using the invalid bit and protection bit + * of a segment table entry. + */ +#define _HPAGE_TYPE_EMPTY 0x020 /* _SEGMENT_ENTRY_INV */ +#define _HPAGE_TYPE_NONE 0x220 +#define _HPAGE_TYPE_RO 0x200 /* _SEGMENT_ENTRY_RO */ +#define _HPAGE_TYPE_RW 0x000 + +/* * PTE type bits are rather complicated. handle_pte_fault uses pte_present, * pte_none and pte_file to find out the pte type WITHOUT holding the page * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to @@ -325,6 +334,9 @@ extern char empty_zero_page[PAGE_SIZE]; #define _SEGMENT_ENTRY (0) #define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV) +#define _SEGMENT_ENTRY_LARGE 0x400 /* STE-format control, large page */ +#define _SEGMENT_ENTRY_CO 0x100 /* change-recording override */ + #endif /* __s390x__ */ /* |