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/*
* linux/include/asm-arm/arch-integrator/mmu.h
*
* Copyright (C) 1999 ARM Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __ASM_ARCH_MMU_H
#define __ASM_ARCH_MMU_H
/*
* Task size: 3GB
*/
#define TASK_SIZE (0xc0000000UL)
#define TASK_SIZE_26 (0x04000000UL)
/*
* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
*/
#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
/*
* Page offset: 3GB
*/
#define PAGE_OFFSET (0xc0000000UL)
#define PHYS_OFFSET (0x00000000UL)
/*
* On integrator, the dram is contiguous
*/
#define __virt_to_phys__is_a_macro
#define __virt_to_phys(vpage) ((vpage) - PAGE_OFFSET)
#define __phys_to_virt__is_a_macro
#define __phys_to_virt(ppage) ((ppage) + PAGE_OFFSET)
/*
* Virtual view <-> DMA view memory address translations
* virt_to_bus: Used to translate the virtual address to an
* address suitable to be passed to set_dma_addr
* bus_to_virt: Used to convert an address for DMA operations
* to an address that the kernel can use.
*/
#define __virt_to_bus__is_a_macro
#define __virt_to_bus(x) (x - PAGE_OFFSET + INTEGRATOR_HDR0_SDRAM_BASE)
#define __bus_to_virt__is_a_macro
#define __bus_to_virt(x) (x - INTEGRATOR_HDR0_SDRAM_BASE + PAGE_OFFSET)
#define PHYS_TO_NID(addr) (0)
#endif
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