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[S390] 4level-fixup cleanup

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Get independent from asm-generic/4level-fixup.h

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2007-10-22 12:52:48 +02:00
parent 3610cce87a
commit 190a1d722a
7 changed files with 129 additions and 81 deletions
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32
include/asm-s390/pgalloc.h
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@@ -56,11 +56,17 @@ 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(x) do { } while (0)
#define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); })
#define pmd_free(x) do { } while (0)
#define pgd_populate(mm, pmd, pte) BUG()
#define pgd_populate_kernel(mm, pmd, pte) BUG()
#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__ */
@@ -69,6 +75,9 @@ static inline unsigned long pgd_entry_type(struct mm_struct *mm)
return _REGION3_ENTRY_EMPTY;
}
#define pud_alloc_one(mm,address) ({ BUG(); ((pud_t *)2); })
#define pud_free(x) do { } while (0)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
{
unsigned long *crst = crst_table_alloc(mm, s390_noexec);
@@ -78,20 +87,23 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
}
#define pmd_free(pmd) crst_table_free((unsigned long *) pmd)
static inline void pgd_populate_kernel(struct mm_struct *mm,
pgd_t *pgd, pmd_t *pmd)
#define pgd_populate(mm, pgd, pud) BUG()
#define pgd_populate_kernel(mm, pgd, pud) BUG()
static inline void pud_populate_kernel(struct mm_struct *mm,
pud_t *pud, pmd_t *pmd)
{
pgd_val(*pgd) = _REGION3_ENTRY | __pa(pmd);
pud_val(*pud) = _REGION3_ENTRY | __pa(pmd);
}
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
pgd_t *shadow_pgd = get_shadow_table(pgd);
pud_t *shadow_pud = get_shadow_table(pud);
pmd_t *shadow_pmd = get_shadow_table(pmd);
if (shadow_pgd && shadow_pmd)
pgd_populate_kernel(mm, shadow_pgd, shadow_pmd);
pgd_populate_kernel(mm, pgd, pmd);
if (shadow_pud && shadow_pmd)
pud_populate_kernel(mm, shadow_pud, shadow_pmd);
pud_populate_kernel(mm, pud, pmd);
}
#endif /* __s390x__ */