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mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h

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Three architectures already define these, and we'll need them genericly
soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Christoph Hellwig 2015-08-07 17:41:01 -04:00 committed by Dan Williams
parent cb389b9c0e
commit 012dcef3f0
4 changed files with 6 additions and 18 deletions
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6
arch/arm/include/asm/memory.h
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@ -118,12 +118,6 @@
#define DTCM_OFFSET UL(0xfffe8000)
#endif
/*
* Convert a physical address to a Page Frame Number and back
*/
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
#define __pfn_to_phys(pfn) ((phys_addr_t)(pfn) << PAGE_SHIFT)
/*
* Convert a page to/from a physical address
*/

6
arch/arm64/include/asm/memory.h
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@ -80,12 +80,6 @@
#define __virt_to_phys(x) (((phys_addr_t)(x) - PAGE_OFFSET + PHYS_OFFSET))
#define __phys_to_virt(x) ((unsigned long)((x) - PHYS_OFFSET + PAGE_OFFSET))
/*
* Convert a physical address to a Page Frame Number and back
*/
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
#define __pfn_to_phys(pfn) ((phys_addr_t)(pfn) << PAGE_SHIFT)
/*
* Convert a page to/from a physical address
*/

6
arch/unicore32/include/asm/memory.h
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@ -60,12 +60,6 @@
#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
#endif
/*
* Convert a physical address to a Page Frame Number and back
*/
#define __phys_to_pfn(paddr) ((paddr) >> PAGE_SHIFT)
#define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
/*
* Convert a page to/from a physical address
*/

6
include/asm-generic/memory_model.h
View File

@ -69,6 +69,12 @@
})
#endif /* CONFIG_FLATMEM/DISCONTIGMEM/SPARSEMEM */
/*
* Convert a physical address to a Page Frame Number and back
*/
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
#define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
#define page_to_pfn __page_to_pfn
#define pfn_to_page __pfn_to_page