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| author |   Mike Rapoport <rppt@linux.ibm.com> | 2022-02-04 13:49:20 -0500 |
|---|---|---|
| committer |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-21 12:59:02 -0400 |
| commit | 7106c51ee9a1b65eff63496636fce36bf246c1a0 (patch) | |
| tree | 7532d39eed0764ff0b0d1369262272c320dc4b30 /arch/microblaze | |
| parent | mm: Add DEFINE_PAGE_VMA_WALK and DEFINE_FOLIO_VMA_WALK (diff) | |
| download | linux-dev-7106c51ee9a1b65eff63496636fce36bf246c1a0.tar.xz linux-dev-7106c51ee9a1b65eff63496636fce36bf246c1a0.zip | |
arch: Add pmd_pfn() where it is missing
We need to use this function in common code, so define it for
architectures and/or configrations that miss it. The result of
pmd_pfn() will only be used if TRANSPARENT_HUGEPAGE is enabled,
but a function or macro called pmd_pfn() must be defined, even
on machines with two level page tables.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index c136a01e467e..0c72646370e1 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -399,6 +399,9 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) return ((unsigned long) (pmd_val(pmd) & PAGE_MASK)); } +/* returns pfn of the pmd entry*/ +#define pmd_pfn(pmd) (__pa(pmd_val(pmd)) >> PAGE_SHIFT) + /* returns struct *page of the pmd entry*/ #define pmd_page(pmd) (pfn_to_page(__pa(pmd_val(pmd)) >> PAGE_SHIFT)) |