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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-06-16 17:24:39 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-07-26 08:25:08 +0200 |
| commit | c67da7c7c5d4c0a45b079b21f6991cb7e753856e (patch) | |
| tree | b2fa23016e3160fa807e1d89b986156e0923a692 /arch/s390/include/asm/pgalloc.h | |
| parent | s390/mm: get rid of __ASSEMBLY__ guards within pgtable.h (diff) | |
| download | linux-c67da7c7c5d4c0a45b079b21f6991cb7e753856e.tar.xz linux-c67da7c7c5d4c0a45b079b21f6991cb7e753856e.zip | |
s390/mm: introduce defines to reflect the hardware mmu
Add various defines like e.g. _REGION1_SHIFT to reflect the hardware
mmu. We have quite a bit code that does not make use of the Linux
memory management primitives but directly modifies page, segment and
region values.
Most of this is open-coded like e.g. "1UL << 53". In order to clean
this up introduce a couple of new defines. The existing Linux memory
management defines are changed, so the mapping to the hardware
implementation is reflected.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pgalloc.h')
| -rw-r--r-- | arch/s390/include/asm/pgalloc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index bb0ff1bb0c4a..eccfa0642712 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -15,6 +15,8 @@ #include <linux/gfp.h> #include <linux/mm.h> +#define CRST_ALLOC_ORDER 2 + unsigned long *crst_table_alloc(struct mm_struct *); void crst_table_free(struct mm_struct *, unsigned long *); |