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-rw-r--r--arch/x86/include/asm/fixmap_32.h115
1 files changed, 0 insertions, 115 deletions
diff --git a/arch/x86/include/asm/fixmap_32.h b/arch/x86/include/asm/fixmap_32.h
deleted file mode 100644
index 047d9bab2b31..000000000000
--- a/arch/x86/include/asm/fixmap_32.h
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1/*
2 * fixmap.h: compile-time virtual memory allocation
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 1998 Ingo Molnar
9 *
10 * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
11 */
12
13#ifndef _ASM_X86_FIXMAP_32_H
14#define _ASM_X86_FIXMAP_32_H
15
16
17/* used by vmalloc.c, vsyscall.lds.S.
18 *
19 * Leave one empty page between vmalloc'ed areas and
20 * the start of the fixmap.
21 */
22extern unsigned long __FIXADDR_TOP;
23#define FIXADDR_USER_START __fix_to_virt(FIX_VDSO)
24#define FIXADDR_USER_END __fix_to_virt(FIX_VDSO - 1)
25
26#ifndef __ASSEMBLY__
27#include <linux/kernel.h>
28#include <asm/acpi.h>
29#include <asm/apicdef.h>
30#include <asm/page.h>
31#include <linux/threads.h>
32#include <asm/kmap_types.h>
33
34/*
35 * Here we define all the compile-time 'special' virtual
36 * addresses. The point is to have a constant address at
37 * compile time, but to set the physical address only
38 * in the boot process. We allocate these special addresses
39 * from the end of virtual memory (0xfffff000) backwards.
40 * Also this lets us do fail-safe vmalloc(), we
41 * can guarantee that these special addresses and
42 * vmalloc()-ed addresses never overlap.
43 *
44 * these 'compile-time allocated' memory buffers are
45 * fixed-size 4k pages. (or larger if used with an increment
46 * highger than 1) use fixmap_set(idx,phys) to associate
47 * physical memory with fixmap indices.
48 *
49 * TLB entries of such buffers will not be flushed across
50 * task switches.
51 */
52enum fixed_addresses {
53 FIX_HOLE,
54 FIX_VDSO,
55 FIX_DBGP_BASE,
56 FIX_EARLYCON_MEM_BASE,
57#ifdef CONFIG_X86_LOCAL_APIC
58 FIX_APIC_BASE, /* local (CPU) APIC) -- required for SMP or not */
59#endif
60#ifdef CONFIG_X86_IO_APIC
61 FIX_IO_APIC_BASE_0,
62 FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
63#endif
64#ifdef CONFIG_X86_VISWS_APIC
65 FIX_CO_CPU, /* Cobalt timer */
66 FIX_CO_APIC, /* Cobalt APIC Redirection Table */
67 FIX_LI_PCIA, /* Lithium PCI Bridge A */
68 FIX_LI_PCIB, /* Lithium PCI Bridge B */
69#endif
70#ifdef CONFIG_X86_F00F_BUG
71 FIX_F00F_IDT, /* Virtual mapping for IDT */
72#endif
73#ifdef CONFIG_X86_CYCLONE_TIMER
74 FIX_CYCLONE_TIMER, /*cyclone timer register*/
75#endif
76 FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
77 FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
78#ifdef CONFIG_PCI_MMCONFIG
79 FIX_PCIE_MCFG,
80#endif
81#ifdef CONFIG_PARAVIRT
82 FIX_PARAVIRT_BOOTMAP,
83#endif
84 __end_of_permanent_fixed_addresses,
85 /*
86 * 256 temporary boot-time mappings, used by early_ioremap(),
87 * before ioremap() is functional.
88 *
89 * We round it up to the next 256 pages boundary so that we
90 * can have a single pgd entry and a single pte table:
91 */
92#define NR_FIX_BTMAPS 64
93#define FIX_BTMAPS_SLOTS 4
94 FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 -
95 (__end_of_permanent_fixed_addresses & 255),
96 FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_SLOTS - 1,
97 FIX_WP_TEST,
98#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
99 FIX_OHCI1394_BASE,
100#endif
101 __end_of_fixed_addresses
102};
103
104extern void reserve_top_address(unsigned long reserve);
105
106
107#define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP)
108
109#define __FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
110#define __FIXADDR_BOOT_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
111#define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE)
112#define FIXADDR_BOOT_START (FIXADDR_TOP - __FIXADDR_BOOT_SIZE)
113
114#endif /* !__ASSEMBLY__ */
115#endif /* _ASM_X86_FIXMAP_32_H */