#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 <asm/types.h>#include <asm/page.h>#include <asm/prom.h>#include <asm/lmb.h>#include <asm/firmware.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){	unsigned long chunk; 	/* This is a no-op on non-iSeries */	if (!firmware_has_feature(FW_FEATURE_ISERIES))		return pa; 	chunk = addr_to_chunk(pa); 	if (chunk < mschunks_map.num_chunks)		chunk = mschunks_map.mapping[chunk]; 	return chunk_to_addr(chunk) + (pa & MSCHUNKS_OFFSET_MASK);} /* Convenience macros */#define virt_to_abs(va) phys_to_abs(__pa(va))#define abs_to_virt(aa) __va(aa) /* * Converts Virtual Address to Real Address for * Legacy iSeries Hypervisor calls */#define iseries_hv_addr(virtaddr)	\	(0x8000000000000000 | virt_to_abs(virtaddr)) #endif /* __KERNEL__ */#endif /* _ASM_POWERPC_ABS_ADDR_H */