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Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
-rw-r--r--arch/s390/include/asm/pgtable.h23
1 files changed, 3 insertions, 20 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 4f289ff0b7f..011358c1b18 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -128,28 +128,11 @@ static inline int is_zero_pfn(unsigned long pfn)
* effect, this also makes sure that 64 bit module code cannot be used
* as system call address.
*/
-
extern unsigned long VMALLOC_START;
+extern unsigned long VMALLOC_END;
+extern struct page *vmemmap;
-#ifndef __s390x__
-#define VMALLOC_SIZE (96UL << 20)
-#define VMALLOC_END 0x7e000000UL
-#define VMEM_MAP_END 0x80000000UL
-#else /* __s390x__ */
-#define VMALLOC_SIZE (128UL << 30)
-#define VMALLOC_END 0x3e000000000UL
-#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_PAGES ((VMEM_MAP_END - VMALLOC_END) / sizeof(struct page))
-#define VMEM_MAX_PFN min(VMALLOC_START >> PAGE_SHIFT, VMEM_MAX_PAGES)
-#define VMEM_MAX_PHYS ((VMEM_MAX_PFN << PAGE_SHIFT) & ~((16 << 20) - 1))
-#define vmemmap ((struct page *) VMALLOC_END)
+#define VMEM_MAX_PHYS ((unsigned long) vmemmap)
/*
* A 31 bit pagetable entry of S390 has following format: