Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1999 by Kaz Kojima
7 *
8 * Defitions for the address spaces of the SH CPUs.
9 */
10#ifndef __ASM_SH_ADDRSPACE_H
11#define __ASM_SH_ADDRSPACE_H
12#ifdef __KERNEL__
13
14#include <asm/cpu/addrspace.h>
15
16/* Memory segments (32bit Priviledged mode addresses) */
17#define P0SEG 0x00000000
18#define P1SEG 0x80000000
19#define P2SEG 0xa0000000
20#define P3SEG 0xc0000000
21#define P4SEG 0xe0000000
22
23/* Returns the privileged segment base of a given address */
24#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
25
26/* Returns the physical address of a PnSEG (n=1,2) address */
27#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
28
29/*
30 * Map an address to a certain privileged segment
31 */
32#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG))
33#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG))
34#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
35#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))
36
37#endif /* __KERNEL__ */
38#endif /* __ASM_SH_ADDRSPACE_H */