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Commit 65d3223a authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman
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powerpc/mm: Add virt_to_pfn and use this instead of opencoding 



This add helper virt_to_pfn and remove the opencoded usage of the
same.

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent c974809a

arch/powerpc/include/asm/page.h

+3 −2
Original line number Original line Diff line number Diff line
@@ -127,9 +127,10 @@ extern long long virt_phys_offset; 
#define pfn_valid(pfn)		((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr)

#define pfn_valid(pfn)		((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr)

#endif

#endif





#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)

#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)

#define virt_to_page(kaddr)	pfn_to_page(virt_to_pfn(kaddr))

#define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)

#define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)

#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)

#define virt_addr_valid(kaddr)	pfn_valid(virt_to_pfn(kaddr))





/*

/*

 * On Book-E parts we need __va to parse the device tree and we can't

 * On Book-E parts we need __va to parse the device tree and we can't