forked from Minki/linux
8882a4da1c
This patch moves a bunch of files from arch/ppc64 and
include/asm-ppc64 which have no equivalents in ppc32 code into
arch/powerpc and include/asm-powerpc. The file affected are:
abs_addr.h
compat.h
lppaca.h
paca.h
tce.h
cpu_setup_power4.S
ioctl32.c
firmware.c
pacaData.c
The only changes apart from the move and corresponding Makefile
changes are:
- #ifndef/#define in includes updated to _ASM_POWERPC_ form
- trailing whitespace removed
- comments giving full paths removed
- pacaData.c renamed paca.c to remove studlyCaps
- Misplaced { moved in lppaca.h
Built and booted on POWER5 LPAR (ARCH=powerpc and ARCH=ppc64), built
for 32-bit powermac (ARCH=powerpc).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
#ifndef _ASM_POWERPC_ABS_ADDR_H
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#define _ASM_POWERPC_ABS_ADDR_H
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#include <linux/config.h>
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/*
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* c 2001 PPC 64 Team, IBM Corp
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <asm/types.h>
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#include <asm/page.h>
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#include <asm/prom.h>
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#include <asm/lmb.h>
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#include <asm/firmware.h>
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struct mschunks_map {
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unsigned long num_chunks;
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unsigned long chunk_size;
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unsigned long chunk_shift;
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unsigned long chunk_mask;
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u32 *mapping;
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};
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extern struct mschunks_map mschunks_map;
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/* Chunks are 256 KB */
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#define MSCHUNKS_CHUNK_SHIFT (18)
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#define MSCHUNKS_CHUNK_SIZE (1UL << MSCHUNKS_CHUNK_SHIFT)
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#define MSCHUNKS_OFFSET_MASK (MSCHUNKS_CHUNK_SIZE - 1)
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static inline unsigned long chunk_to_addr(unsigned long chunk)
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{
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return chunk << MSCHUNKS_CHUNK_SHIFT;
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}
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static inline unsigned long addr_to_chunk(unsigned long addr)
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{
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return addr >> MSCHUNKS_CHUNK_SHIFT;
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}
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static inline unsigned long phys_to_abs(unsigned long pa)
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{
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unsigned long chunk;
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/* This is a no-op on non-iSeries */
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if (!firmware_has_feature(FW_FEATURE_ISERIES))
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return pa;
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chunk = addr_to_chunk(pa);
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if (chunk < mschunks_map.num_chunks)
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chunk = mschunks_map.mapping[chunk];
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return chunk_to_addr(chunk) + (pa & MSCHUNKS_OFFSET_MASK);
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}
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/* Convenience macros */
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#define virt_to_abs(va) phys_to_abs(__pa(va))
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#define abs_to_virt(aa) __va(aa)
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/*
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* Converts Virtual Address to Real Address for
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* Legacy iSeries Hypervisor calls
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*/
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#define iseries_hv_addr(virtaddr) \
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(0x8000000000000000 | virt_to_abs(virtaddr))
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#endif /* _ASM_POWERPC_ABS_ADDR_H */
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