fixmap_32.h revision 3e1498c4c4b379780bdb998bd68e5d581beec811 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ****************************************************************************
11 ****************************************************************************/
12#ifndef _ASM_FIXMAP_H
13#define _ASM_FIXMAP_H
14
15#define FIXADDR_USER_START __fix_to_virt(FIX_VDSO)
16#define FIXADDR_USER_END __fix_to_virt(FIX_VDSO - 1)
17
18#ifndef __ASSEMBLY__
19#include <linux/kernel.h>
20#include <asm/acpi.h>
21#include <asm/apicdef.h>
22#include <asm/page.h>
23
24enum fixed_addresses {
25 FIX_HOLE,
26 FIX_VDSO,
27 FIX_DBGP_BASE,
28 FIX_EARLYCON_MEM_BASE,
29 __end_of_permanent_fixed_addresses,
30
31#define NR_FIX_BTMAPS 16
32 FIX_BTMAP_END = __end_of_permanent_fixed_addresses,
33 FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS - 1,
34 FIX_WP_TEST,
35 __end_of_fixed_addresses
36};
37
38#define set_fixmap(idx, phys)   __set_fixmap(idx, phys, PAGE_KERNEL)
39
40#define set_fixmap_nocache(idx, phys)   __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
41
42#define clear_fixmap(idx)   __set_fixmap(idx, 0, __pgprot(0))
43
44#define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP)
45
46#define __FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
47#define __FIXADDR_BOOT_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
48#define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE)
49#define FIXADDR_BOOT_START (FIXADDR_TOP - __FIXADDR_BOOT_SIZE)
50
51#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
52#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
53
54#endif
55#endif
56