72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
|
|
* Copyright (C) 2000, 2002 Maciej W. Rozycki
|
|
* Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
|
|
*/
|
|
#ifndef _ASM_MACH_GENERIC_SPACES_H
|
|
#define _ASM_MACH_GENERIC_SPACES_H
|
|
|
|
#include <linux/config.h>
|
|
|
|
#ifdef CONFIG_32BIT
|
|
|
|
#define CAC_BASE 0x80000000
|
|
#define IO_BASE 0xa0000000
|
|
#define UNCAC_BASE 0xa0000000
|
|
#define MAP_BASE 0xc0000000
|
|
|
|
/*
|
|
* This handles the memory map.
|
|
* We handle pages at KSEG0 for kernels with 32 bit address space.
|
|
*/
|
|
#define PAGE_OFFSET 0x80000000UL
|
|
|
|
/*
|
|
* Memory above this physical address will be considered highmem.
|
|
*/
|
|
#ifndef HIGHMEM_START
|
|
#define HIGHMEM_START 0x20000000UL
|
|
#endif
|
|
|
|
#endif /* CONFIG_32BIT */
|
|
|
|
#ifdef CONFIG_64BIT
|
|
|
|
/*
|
|
* This handles the memory map.
|
|
*/
|
|
#ifdef CONFIG_DMA_NONCOHERENT
|
|
#define PAGE_OFFSET 0x9800000000000000UL
|
|
#else
|
|
#define PAGE_OFFSET 0xa800000000000000UL
|
|
#endif
|
|
|
|
/*
|
|
* Memory above this physical address will be considered highmem.
|
|
* Fixme: 59 bits is a fictive number and makes assumptions about processors
|
|
* in the distant future. Nobody will care for a few years :-)
|
|
*/
|
|
#ifndef HIGHMEM_START
|
|
#define HIGHMEM_START (1UL << 59UL)
|
|
#endif
|
|
|
|
#ifdef CONFIG_DMA_NONCOHERENT
|
|
#define CAC_BASE 0x9800000000000000UL
|
|
#else
|
|
#define CAC_BASE 0xa800000000000000UL
|
|
#endif
|
|
#define IO_BASE 0x9000000000000000UL
|
|
#define UNCAC_BASE 0x9000000000000000UL
|
|
#define MAP_BASE 0xc000000000000000UL
|
|
|
|
#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
|
|
#define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK))
|
|
#define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK))
|
|
|
|
#endif /* CONFIG_64BIT */
|
|
|
|
#endif /* __ASM_MACH_GENERIC_SPACES_H */
|