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Commit 719301ff authored by Russell King's avatar Russell King
Browse files

ARM: provide phys_to_page() to complement page_to_phys() 



Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Tested-By: default avatarJamie Iles <jamie@jamieiles.com>
Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent ac50e950

arch/arm/include/asm/memory.h

+6 −5
Original line number Diff line number Diff line
@@ -134,6 +134,12 @@ 
#define	__phys_to_pfn(paddr)	((paddr) >> PAGE_SHIFT)

#define	__pfn_to_phys(pfn)	((pfn) << PAGE_SHIFT)



/*

 * Convert a page to/from a physical address

 */

#define page_to_phys(page)	(__pfn_to_phys(page_to_pfn(page)))

#define phys_to_page(phys)	(pfn_to_page(__phys_to_pfn(phys)))



#ifndef __ASSEMBLY__



/*
@@ -292,11 +298,6 @@ static inline __deprecated void *bus_to_virt(unsigned long x) 


#endif /* !CONFIG_DISCONTIGMEM */



/*

 * For BIO.  "will die".  Kill me when bio_to_phys() and bvec_to_phys() die.

 */

#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)



/*

 * Optional coherency support.  Currently used only by selected

 * Intel XSC3-based systems.