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#include <linux/kernel.h>
16#include <asm/page.h>
17
18enum fixed_addresses {
19#define FIX_N_COLOURS 16
20 FIX_CMAP_BEGIN,
21 FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
22 FIX_UNCACHED,
23 __end_of_fixed_addresses
24};
25
26#define set_fixmap(idx, phys)   __set_fixmap(idx, phys, PAGE_KERNEL)
27
28#define set_fixmap_nocache(idx, phys)   __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
29
30#define FIXADDR_TOP (P4SEG - PAGE_SIZE)
31#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
32#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
33
34#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
35#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
36
37#endif
38