14c89e7fc8
On ppc64, we independently define VMALLOCBASE and VMALLOC_START to be the same thing: the start of the vmalloc() area at 0xd000000000000000. VMALLOC_START is used much more widely, including in generic code, so this patch gets rid of the extraneous VMALLOCBASE. This does require moving the definitions of region IDs from page_64.h to pgtable.h, but they don't clearly belong in the former rather than the latter, anyway. While we're moving them, clean up the definitions of the REGION_IDs: - Abolish REGION_SIZE, it was only used once, to define REGION_MASK anyway - Define the specific region ids in terms of the REGION_ID() macro. - Define KERNEL_REGION_ID in terms of PAGE_OFFSET rather than KERNELBASE. It amounts to the same thing, but conceptually this is about the region of the linear mapping (which starts at PAGE_OFFSET) rather than of the kernel text itself (which is at KERNELBASE). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
32 lines
905 B
C
32 lines
905 B
C
/*
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* Copyright (C) 2005 Stephen Rothwell 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/mmu.h>
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#include <asm/page.h>
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#include <asm/iseries/lpar_map.h>
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const struct LparMap __attribute__((__section__(".text"))) xLparMap = {
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.xNumberEsids = HvEsidsToMap,
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.xNumberRanges = HvRangesToMap,
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.xSegmentTableOffs = STAB0_PAGE,
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.xEsids = {
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{ .xKernelEsid = GET_ESID(PAGE_OFFSET),
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.xKernelVsid = KERNEL_VSID(PAGE_OFFSET), },
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{ .xKernelEsid = GET_ESID(VMALLOC_START),
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.xKernelVsid = KERNEL_VSID(VMALLOC_START), },
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},
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.xRanges = {
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{ .xPages = HvPagesToMap,
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.xOffset = 0,
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.xVPN = KERNEL_VSID(PAGE_OFFSET) << (SID_SHIFT - HW_PAGE_SHIFT),
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},
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},
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};
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