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s390/mm: use new mm defines instead of magic values

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Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2017-07-05 07:37:27 +02:00
committed by Martin Schwidefsky
parent c67da7c7c5
commit f1c1174fa0
15 changed files with 103 additions and 99 deletions
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12
arch/s390/include/asm/pgalloc.h
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@@ -44,16 +44,16 @@ static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
static inline void crst_table_init(unsigned long *crst, unsigned long entry)
{
clear_table(crst, entry, sizeof(unsigned long)*2048);
clear_table(crst, entry, _CRST_TABLE_SIZE);
}
static inline unsigned long pgd_entry_type(struct mm_struct *mm)
{
if (mm->context.asce_limit <= (1UL << 31))
if (mm->context.asce_limit <= _REGION3_SIZE)
return _SEGMENT_ENTRY_EMPTY;
if (mm->context.asce_limit <= (1UL << 42))
if (mm->context.asce_limit <= _REGION2_SIZE)
return _REGION3_ENTRY_EMPTY;
if (mm->context.asce_limit <= (1UL << 53))
if (mm->context.asce_limit <= _REGION1_SIZE)
return _REGION2_ENTRY_EMPTY;
return _REGION1_ENTRY_EMPTY;
}
@@ -121,7 +121,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
if (!table)
return NULL;
if (mm->context.asce_limit == (1UL << 31)) {
if (mm->context.asce_limit == _REGION3_SIZE) {
/* Forking a compat process with 2 page table levels */
if (!pgtable_pmd_page_ctor(virt_to_page(table))) {
crst_table_free(mm, table);
@@ -133,7 +133,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
if (mm->context.asce_limit == (1UL << 31))
if (mm->context.asce_limit == _REGION3_SIZE)
pgtable_pmd_page_dtor(virt_to_page(pgd));
crst_table_free(mm, (unsigned long *) pgd);
}