Release 4.10 arch/x86/include/asm/page_64.h

#ifndef _ASM_X86_PAGE_64_H

#define _ASM_X86_PAGE_64_H

#include <asm/page_64_types.h>

#ifndef __ASSEMBLY__

/* duplicated to the one in bootmem.h */
extern unsigned long max_pfn;
extern unsigned long phys_base;



static inline unsigned long __phys_addr_nodebug(unsigned long x)
{
	unsigned long y = x - __START_KERNEL_map;

	/* use the carry flag to determine if x was < __START_KERNEL_map */
	x = y + ((x > y) ? phys_base : (__START_KERNEL_map - PAGE_OFFSET));

	return x;
}

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#ifdef CONFIG_DEBUG_VIRTUAL
extern unsigned long __phys_addr(unsigned long);
extern unsigned long __phys_addr_symbol(unsigned long);
#else

#define __phys_addr(x)		__phys_addr_nodebug(x)

#define __phys_addr_symbol(x) \
	((unsigned long)(x) - __START_KERNEL_map + phys_base)
#endif


#define __phys_reloc_hide(x)	(x)

#ifdef CONFIG_FLATMEM

#define pfn_valid(pfn)          ((pfn) < max_pfn)
#endif

void clear_page(void *page);
void copy_page(void *to, void *from);

#endif	/* !__ASSEMBLY__ */

#ifdef CONFIG_X86_VSYSCALL_EMULATION

# define __HAVE_ARCH_GATE_AREA 1
#endif

#endif /* _ASM_X86_PAGE_64_H */
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alexander duyck
alexander duyck
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andy lutomirski
andy lutomirski
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2
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andi kleen
andi kleen
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jeremy fitzhardinge
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h. peter anvin
h. peter anvin
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david woodhouse
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Directory: arch/x86/include/asm

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