linux_dsm_epyc7002/arch/m68k/include/asm/page.h
Sudip Mukherjee eb37bc3f85 m68k: Provide __phys_to_pfn() and __pfn_to_phys()
The defconfig build of m68k was failing with the error:
implicit declaration of function '__pfn_to_phys'

Other architectures have added <asm/memory.h>, but if we do so here then
we will also get redeclaration of some other functions. So it is better
to copy these macros into page.h.

Fixes: 0a3c3bf11240 ("x86, mm: introduce vmem_altmap to augment vmemmap_populate()")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Reported-by: Guenter Roeck <linux@roeck-us.net> (m68knommu)
[geert: Apply to page.h instead of page_mm.h to cover nommu, reword]
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2016-01-10 13:56:40 +01:00

60 lines
1.4 KiB
C

#ifndef _M68K_PAGE_H
#define _M68K_PAGE_H
#include <linux/const.h>
#include <asm/setup.h>
#include <asm/page_offset.h>
/* PAGE_SHIFT determines the page size */
#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
#define PAGE_SHIFT 13
#else
#define PAGE_SHIFT 12
#endif
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_OFFSET (PAGE_OFFSET_RAW)
#ifndef __ASSEMBLY__
/*
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
typedef struct page *pgtable_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
extern unsigned long _rambase;
extern unsigned long _ramstart;
extern unsigned long _ramend;
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_MMU
#include <asm/page_mm.h>
#else
#include <asm/page_no.h>
#endif
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
#include <asm-generic/getorder.h>
#endif /* _M68K_PAGE_H */