mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
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>
31 lines
905 B
C
31 lines
905 B
C
/*
|
|
* Copyright (C) 2005 Stephen Rothwell 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/mmu.h>
|
|
#include <asm/page.h>
|
|
#include <asm/iseries/lpar_map.h>
|
|
|
|
const struct LparMap __attribute__((__section__(".text"))) xLparMap = {
|
|
.xNumberEsids = HvEsidsToMap,
|
|
.xNumberRanges = HvRangesToMap,
|
|
.xSegmentTableOffs = STAB0_PAGE,
|
|
|
|
.xEsids = {
|
|
{ .xKernelEsid = GET_ESID(PAGE_OFFSET),
|
|
.xKernelVsid = KERNEL_VSID(PAGE_OFFSET), },
|
|
{ .xKernelEsid = GET_ESID(VMALLOC_START),
|
|
.xKernelVsid = KERNEL_VSID(VMALLOC_START), },
|
|
},
|
|
|
|
.xRanges = {
|
|
{ .xPages = HvPagesToMap,
|
|
.xOffset = 0,
|
|
.xVPN = KERNEL_VSID(PAGE_OFFSET) << (SID_SHIFT - HW_PAGE_SHIFT),
|
|
},
|
|
},
|
|
};
|