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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2008-08-01 20:42:05 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-08-01 20:42:05 +0200
commitc6557e7f2b6ae76a44653d38f835174074c42e05 (patch)
treeda619a76b309cb1cd259d082af768a83cfcd6d52 /include/asm-s390/pgalloc.h
parentab4227cb2d936886069ef1056c02500d05beb15d (diff)
[S390] move include/asm-s390 to arch/s390/include/asm
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390/pgalloc.h')
-rw-r--r--include/asm-s390/pgalloc.h174
1 files changed, 0 insertions, 174 deletions
diff --git a/include/asm-s390/pgalloc.h b/include/asm-s390/pgalloc.h
deleted file mode 100644
index f5b2bf3d7c1d..000000000000
--- a/include/asm-s390/pgalloc.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * include/asm-s390/pgalloc.h
- *
- * S390 version
- * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Hartmut Penner (hp@de.ibm.com)
- * Martin Schwidefsky (schwidefsky@de.ibm.com)
- *
- * Derived from "include/asm-i386/pgalloc.h"
- * Copyright (C) 1994 Linus Torvalds
- */
-
-#ifndef _S390_PGALLOC_H
-#define _S390_PGALLOC_H
-
-#include <linux/threads.h>
-#include <linux/gfp.h>
-#include <linux/mm.h>
-
-#define check_pgt_cache() do {} while (0)
-
-unsigned long *crst_table_alloc(struct mm_struct *, int);
-void crst_table_free(struct mm_struct *, unsigned long *);
-
-unsigned long *page_table_alloc(struct mm_struct *);
-void page_table_free(struct mm_struct *, unsigned long *);
-void disable_noexec(struct mm_struct *, struct task_struct *);
-
-static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
-{
- *s = val;
- n = (n / 256) - 1;
- asm volatile(
-#ifdef CONFIG_64BIT
- " mvc 8(248,%0),0(%0)\n"
-#else
- " mvc 4(252,%0),0(%0)\n"
-#endif
- "0: mvc 256(256,%0),0(%0)\n"
- " la %0,256(%0)\n"
- " brct %1,0b\n"
- : "+a" (s), "+d" (n));
-}
-
-static inline void crst_table_init(unsigned long *crst, unsigned long entry)
-{
- clear_table(crst, entry, sizeof(unsigned long)*2048);
- crst = get_shadow_table(crst);
- if (crst)
- clear_table(crst, entry, sizeof(unsigned long)*2048);
-}
-
-#ifndef __s390x__
-
-static inline unsigned long pgd_entry_type(struct mm_struct *mm)
-{
- return _SEGMENT_ENTRY_EMPTY;
-}
-
-#define pud_alloc_one(mm,address) ({ BUG(); ((pud_t *)2); })
-#define pud_free(mm, x) do { } while (0)
-
-#define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); })
-#define pmd_free(mm, x) do { } while (0)
-
-#define pgd_populate(mm, pgd, pud) BUG()
-#define pgd_populate_kernel(mm, pgd, pud) BUG()
-
-#define pud_populate(mm, pud, pmd) BUG()
-#define pud_populate_kernel(mm, pud, pmd) BUG()
-
-#else /* __s390x__ */
-
-static inline unsigned long pgd_entry_type(struct mm_struct *mm)
-{
- if (mm->context.asce_limit <= (1UL << 31))
- return _SEGMENT_ENTRY_EMPTY;
- if (mm->context.asce_limit <= (1UL << 42))
- return _REGION3_ENTRY_EMPTY;
- return _REGION2_ENTRY_EMPTY;
-}
-
-int crst_table_upgrade(struct mm_struct *, unsigned long limit);
-void crst_table_downgrade(struct mm_struct *, unsigned long limit);
-
-static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- unsigned long *table = crst_table_alloc(mm, mm->context.noexec);
- if (table)
- crst_table_init(table, _REGION3_ENTRY_EMPTY);
- return (pud_t *) table;
-}
-#define pud_free(mm, pud) crst_table_free(mm, (unsigned long *) pud)
-
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
-{
- unsigned long *table = crst_table_alloc(mm, mm->context.noexec);
- if (table)
- crst_table_init(table, _SEGMENT_ENTRY_EMPTY);
- return (pmd_t *) table;
-}
-#define pmd_free(mm, pmd) crst_table_free(mm, (unsigned long *) pmd)
-
-static inline void pgd_populate_kernel(struct mm_struct *mm,
- pgd_t *pgd, pud_t *pud)
-{
- pgd_val(*pgd) = _REGION2_ENTRY | __pa(pud);
-}
-
-static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
-{
- pgd_populate_kernel(mm, pgd, pud);
- if (mm->context.noexec) {
- pgd = get_shadow_table(pgd);
- pud = get_shadow_table(pud);
- pgd_populate_kernel(mm, pgd, pud);
- }
-}
-
-static inline void pud_populate_kernel(struct mm_struct *mm,
- pud_t *pud, pmd_t *pmd)
-{
- pud_val(*pud) = _REGION3_ENTRY | __pa(pmd);
-}
-
-static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
-{
- pud_populate_kernel(mm, pud, pmd);
- if (mm->context.noexec) {
- pud = get_shadow_table(pud);
- pmd = get_shadow_table(pmd);
- pud_populate_kernel(mm, pud, pmd);
- }
-}
-
-#endif /* __s390x__ */
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- INIT_LIST_HEAD(&mm->context.crst_list);
- INIT_LIST_HEAD(&mm->context.pgtable_list);
- return (pgd_t *) crst_table_alloc(mm, s390_noexec);
-}
-#define pgd_free(mm, pgd) crst_table_free(mm, (unsigned long *) pgd)
-
-static inline void pmd_populate_kernel(struct mm_struct *mm,
- pmd_t *pmd, pte_t *pte)
-{
- pmd_val(*pmd) = _SEGMENT_ENTRY + __pa(pte);
-}
-
-static inline void pmd_populate(struct mm_struct *mm,
- pmd_t *pmd, pgtable_t pte)
-{
- pmd_populate_kernel(mm, pmd, pte);
- if (mm->context.noexec) {
- pmd = get_shadow_table(pmd);
- pmd_populate_kernel(mm, pmd, pte + PTRS_PER_PTE);
- }
-}
-
-#define pmd_pgtable(pmd) \
- (pgtable_t)(pmd_val(pmd) & -sizeof(pte_t)*PTRS_PER_PTE)
-
-/*
- * page table entry allocation/free routines.
- */
-#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-
-#define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
-#define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
-
-#endif /* _S390_PGALLOC_H */