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authorMike Rapoport <rppt@linux.ibm.com>2022-02-04 13:49:20 -0500
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-03-21 12:59:02 -0400
commit7106c51ee9a1b65eff63496636fce36bf246c1a0 (patch)
tree7532d39eed0764ff0b0d1369262272c320dc4b30 /arch/microblaze
parenteed05e54d275b3cfc5d8c79843c5276a5878e94a (diff)
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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.h3
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))