diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 10:11:02 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 10:11:02 -0800 |
| commit | 39ce941ec15032c0efc3632b9f00a6b2365e1870 (patch) | |
| tree | 9ac548adf0444b8a74e31c984e5a49766fc2c385 /include/asm-s390/pgtable.h | |
| parent | 3d412f60b71e588544e7b75861084f12aa1d7acd (diff) | |
| parent | c5411dba58c28736d25cffef65da1e01ed7d1423 (diff) | |
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] dcss: Initialize workqueue before using it.
[S390] Remove BUILD_BUG_ON() in vmem code.
[S390] sclp_tty/sclp_vt220: Fix scheduling while atomic
[S390] dasd: fix panic caused by alias device offline
[S390] dasd: add ifcc handling
[S390] latencytop s390 support.
[S390] Implement ext2_find_next_bit.
[S390] Cleanup & optimize bitops.
[S390] Define GENERIC_LOCKBREAK.
[S390] console: allow vt220 console to be the only console
[S390] Fix couple of section mismatches.
[S390] Fix smp_call_function_mask semantics.
[S390] Fix linker script.
[S390] DEBUG_PAGEALLOC support for s390.
[S390] cio: Add shutdown callback for ccwgroup.
[S390] cio: Update documentation.
[S390] cio: Clean up chsc response code handling.
[S390] cio: make sense id procedure work with partial hardware response
Diffstat (limited to 'include/asm-s390/pgtable.h')
| -rw-r--r-- | include/asm-s390/pgtable.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 79b9eab1a0c..3f520754e71 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -115,15 +115,21 @@ extern char empty_zero_page[PAGE_SIZE]; #ifndef __s390x__ #define VMALLOC_START 0x78000000UL #define VMALLOC_END 0x7e000000UL -#define VMEM_MAP_MAX 0x80000000UL +#define VMEM_MAP_END 0x80000000UL #else /* __s390x__ */ #define VMALLOC_START 0x3e000000000UL #define VMALLOC_END 0x3e040000000UL -#define VMEM_MAP_MAX 0x40000000000UL +#define VMEM_MAP_END 0x40000000000UL #endif /* __s390x__ */ +/* + * VMEM_MAX_PHYS is the highest physical address that can be added to the 1:1 + * mapping. This needs to be calculated at compile time since the size of the + * VMEM_MAP is static but the size of struct page can change. + */ +#define VMEM_MAX_PHYS min(VMALLOC_START, ((VMEM_MAP_END - VMALLOC_END) / \ + sizeof(struct page) * PAGE_SIZE) & ~((16 << 20) - 1)) #define VMEM_MAP ((struct page *) VMALLOC_END) -#define VMEM_MAP_SIZE ((VMALLOC_START / PAGE_SIZE) * sizeof(struct page)) /* * A 31 bit pagetable entry of S390 has following format: |