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#ifndef _ASM_POWERPC_ABS_ADDR_H
#define _ASM_POWERPC_ABS_ADDR_H
#ifdef __KERNEL__
/*
* c 2001 PPC 64 Team, IBM Corp
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/memblock.h>
#include <asm/types.h>
#include <asm/page.h>
#include <asm/prom.h>
struct mschunks_map {
unsigned long num_chunks;
unsigned long chunk_size;
unsigned long chunk_shift;
unsigned long chunk_mask;
u32 *mapping;
};
extern struct mschunks_map mschunks_map;
/* Chunks are 256 KB */
#define MSCHUNKS_CHUNK_SHIFT (18)
#define MSCHUNKS_CHUNK_SIZE (1UL << MSCHUNKS_CHUNK_SHIFT)
#define MSCHUNKS_OFFSET_MASK (MSCHUNKS_CHUNK_SIZE - 1)
static inline unsigned long chunk_to_addr(unsigned long chunk)
{
return chunk << MSCHUNKS_CHUNK_SHIFT;
}
static inline unsigned long addr_to_chunk(unsigned long addr)
{
return addr >> MSCHUNKS_CHUNK_SHIFT;
}
static inline unsigned long phys_to_abs(unsigned long pa)
{
return pa;
}
/* Convenience macros */
#define virt_to_abs(va) phys_to_abs(__pa(va))
#define abs_to_virt(aa) __va(aa)
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_ABS_ADDR_H */
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