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| author | Vasily Gorbik <gor@linux.ibm.com> | 2018-09-13 11:59:43 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-10-09 12:21:19 +0300 |
| commit | d0e2eb0a36ac0a3b27a968abb66eae17448458fb (patch) | |
| tree | f3e0c2fa93f7bb182c751855dd26272564f79b12 /arch/s390/include | |
| parent | 34377d3cfba71be187422b70f72fd72d3a14d088 (diff) | |
| download | linux-d0e2eb0a36ac0a3b27a968abb66eae17448458fb.tar.xz | |
s390: add pgd_page primitive
Add pgd_page primitive which is required by kasan common code.
Also fixes typo in p4d_page definition.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index ffae5dc8b3ce..5f0fb9320dd0 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -601,6 +601,14 @@ static inline int pgd_bad(pgd_t pgd) return (pgd_val(pgd) & mask) != 0; } +static inline unsigned long pgd_pfn(pgd_t pgd) +{ + unsigned long origin_mask; + + origin_mask = _REGION_ENTRY_ORIGIN; + return (pgd_val(pgd) & origin_mask) >> PAGE_SHIFT; +} + static inline int p4d_folded(p4d_t p4d) { return (p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2; @@ -1212,7 +1220,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd)) #define pud_page(pud) pfn_to_page(pud_pfn(pud)) -#define p4d_page(pud) pfn_to_page(p4d_pfn(p4d)) +#define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d)) +#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd)) /* Find an entry in the lowest level page table.. */ #define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr)) |