s390/headers: replace __s390x__ with CONFIG_64BIT where possible

[deliverable/linux.git] / arch / s390 / include / asm / pgtable.h

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 4f289ff0b7fe27b7de54d8886b6aee0b8890066f..b3227415abdaca94d3f3dcc301cb7ce425cd6a9e 100644 (file)
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -74,15 +74,15 @@ static inline int is_zero_pfn(unsigned long pfn)
  * table can map
  * PGDIR_SHIFT determines what a third-level page table entry can map
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 # define PMD_SHIFT     20
 # define PUD_SHIFT     20
 # define PGDIR_SHIFT   20
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 # define PMD_SHIFT     20
 # define PUD_SHIFT     31
 # define PGDIR_SHIFT   42
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define PMD_SIZE        (1UL << PMD_SHIFT)
 #define PMD_MASK        (~(PMD_SIZE-1))
@@ -98,13 +98,13 @@ static inline int is_zero_pfn(unsigned long pfn)
  * that leads to 1024 pte per pgd
  */
 #define PTRS_PER_PTE   256
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define PTRS_PER_PMD   1
 #define PTRS_PER_PUD   1
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define PTRS_PER_PMD   2048
 #define PTRS_PER_PUD   2048
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 #define PTRS_PER_PGD   2048
 
 #define FIRST_USER_ADDRESS  0
@@ -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:
@@ -293,7 +276,7 @@ extern unsigned long VMALLOC_START;
  * swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid.
  */
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 /* Bits in the segment table address-space-control-element */
 #define _ASCE_SPACE_SWITCH     0x80000000UL    /* space switch event       */
@@ -325,7 +308,7 @@ extern unsigned long VMALLOC_START;
 #define KVM_UR_BIT     0x00008000UL
 #define KVM_UC_BIT     0x00004000UL
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 /* Bits in the segment/region table address-space-control-element */
 #define _ASCE_ORIGIN           ~0xfffUL/* segment table origin             */
@@ -380,7 +363,7 @@ extern unsigned long VMALLOC_START;
 #define KVM_UR_BIT     0x0000800000000000UL
 #define KVM_UC_BIT     0x0000400000000000UL
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 /*
  * A user page table pointer has the space-switch-event bit, the
@@ -441,7 +424,7 @@ static inline int mm_has_pgste(struct mm_struct *mm)
 /*
  * pgd/pmd/pte query functions
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 static inline int pgd_present(pgd_t pgd) { return 1; }
 static inline int pgd_none(pgd_t pgd)    { return 0; }
@@ -451,7 +434,7 @@ static inline int pud_present(pud_t pud) { return 1; }
 static inline int pud_none(pud_t pud)   { return 0; }
 static inline int pud_bad(pud_t pud)    { return 0; }
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 static inline int pgd_present(pgd_t pgd)
 {
@@ -507,7 +490,7 @@ static inline int pud_bad(pud_t pud)
        return (pud_val(pud) & mask) != 0;
 }
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 static inline int pmd_present(pmd_t pmd)
 {
@@ -758,7 +741,7 @@ static inline int pte_young(pte_t pte)
 
 static inline void pgd_clear(pgd_t *pgd)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
        if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
                pgd_val(*pgd) = _REGION2_ENTRY_EMPTY;
 #endif
@@ -766,7 +749,7 @@ static inline void pgd_clear(pgd_t *pgd)
 
 static inline void pud_clear(pud_t *pud)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
        if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
                pud_val(*pud) = _REGION3_ENTRY_EMPTY;
 #endif
@@ -938,7 +921,7 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
 static inline void __ptep_ipte(unsigned long address, pte_t *ptep)
 {
        if (!(pte_val(*ptep) & _PAGE_INVALID)) {
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                /* pto must point to the start of the segment table */
                pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00);
 #else
@@ -1133,7 +1116,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
 #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
 #define pgd_offset_k(address) pgd_offset(&init_mm, address)
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
 #define pud_deref(pmd) ({ BUG(); 0UL; })
@@ -1142,7 +1125,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
 #define pud_offset(pgd, address) ((pud_t *) pgd)
 #define pmd_offset(pud, address) ((pmd_t *) pud + pmd_index(address))
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
 #define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
@@ -1164,7 +1147,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
        return pmd + pmd_index(address);
 }
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define pfn_pte(pfn,pgprot) mk_pte_phys(__pa((pfn) << PAGE_SHIFT),(pgprot))
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
@@ -1213,7 +1196,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
  *  0000000000111111111122222222223333333333444444444455 5555 5 55566 66
  *  0123456789012345678901234567890123456789012345678901 2345 6 78901 23
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define __SWP_OFFSET_MASK (~0UL >> 12)
 #else
 #define __SWP_OFFSET_MASK (~0UL >> 11)
@@ -1234,11 +1217,11 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
 #define __pte_to_swp_entry(pte)        ((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)  ((pte_t) { (x).val })
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 # define PTE_FILE_MAX_BITS     26
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 # define PTE_FILE_MAX_BITS     59
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define pte_to_pgoff(__pte) \
        ((((__pte).pte >> 12) << 7) + (((__pte).pte >> 1) & 0x7f))