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#ifndef __VIRT_CONVERT__

#define __VIRT_CONVERT__

/*

 * Macros used for converting between virtual and physical mappings.

 */

#ifdef __KERNEL__

#include <linux/config.h>

#include <asm/setup.h>

#include <asm/page.h>

#ifdef CONFIG_AMIGA

#include <asm/amigahw.h>

#endif

/*

 * Change virtual addresses to physical addresses and vv.

 */

#ifndef CONFIG_SUN3

extern unsigned long mm_vtop(unsigned long addr) __attribute__ ((const));

extern unsigned long mm_ptov(unsigned long addr) __attribute__ ((const));

#else

static inline unsigned long mm_vtop(unsigned long vaddr)

{

        return __pa(vaddr);

}

static inline unsigned long mm_ptov(unsigned long paddr)

{

        return (unsigned long)__va(paddr);

}

#endif 

#ifdef CONFIG_SINGLE_MEMORY_CHUNK

static inline unsigned long virt_to_phys(void *vaddr)

{

        return (unsigned long)vaddr - PAGE_OFFSET + m68k_memory[0].addr;

}

static inline void * phys_to_virt(unsigned long paddr)

{

        return (void *)(paddr - m68k_memory[0].addr + PAGE_OFFSET);

}

#else

static inline unsigned long virt_to_phys(void *address)

{

        return mm_vtop((unsigned long)address);

}

static inline void *phys_to_virt(unsigned long address)

{

        return (void *) mm_ptov(address);

}

#endif

/*

 * IO bus memory addresses are 1:1 with the physical address,

 * except on the PCI bus of the Hades.

 */

#ifdef CONFIG_HADES

#define virt_to_bus(a) (virt_to_phys(a) + (MACH_IS_HADES ? 0x80000000 : 0))

#define bus_to_virt(a) (phys_to_virt((a) - (MACH_IS_HADES ? 0x80000000 : 0)))

#else

#define virt_to_bus virt_to_phys

#define bus_to_virt phys_to_virt

#endif

/*

 * Change "struct page" to physical address.

 */

#define __page_address(page)      (PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))

#define page_to_phys(page)       virt_to_phys((void *)__page_address(page))

#endif

#endif