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sparc32: Add pmd_pfn()

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We need to use this function in common code; pull it out of pmd_page().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-02-15 17:50:17 -05:00
parent 9e996c2115
commit aef13dec0a
1 changed files with 6 additions and 1 deletions
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7
arch/sparc/include/asm/pgtable_32.h
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@ -127,11 +127,16 @@ static inline int srmmu_device_memory(unsigned long x)
return ((x & 0xF0000000) != 0);
}
static inline unsigned long pmd_pfn(pmd_t pmd)
{
return (pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4);
}
static inline struct page *pmd_page(pmd_t pmd)
{
if (srmmu_device_memory(pmd_val(pmd)))
BUG();
return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4));
return pfn_to_page(pmd_pfn(pmd));
}
static inline unsigned long __pmd_page(pmd_t pmd)