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memory.h

/*
 *  arch/arm/mach-rpc/include/mach/memory.h
 *
 *  Copyright (C) 1996,1997,1998 Russell King.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 *  Changelog:
 *   20-Oct-1996 RMK    Created
 *   31-Dec-1997 RMK    Fixed definitions to reduce warnings
 *   11-Jan-1998 RMK    Uninlined to reduce hits on cache
 *   08-Feb-1998 RMK    Added __virt_to_bus and __bus_to_virt
 *   21-Mar-1999 RMK    Renamed to memory.h
 *           RMK  Added TASK_SIZE and PAGE_OFFSET
 */
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H

/*
 * Physical DRAM offset.
 */
#define PHYS_OFFSET     UL(0x10000000)

/*
 * These are exactly the same on the RiscPC as the
 * physical memory view.
 */
#define __virt_to_bus(x) __virt_to_phys(x)
#define __bus_to_virt(x) __phys_to_virt(x)

/*
 * Cache flushing area - ROM
 */
#define FLUSH_BASE_PHYS       0x00000000
#define FLUSH_BASE            0xdf000000

/*
 * Sparsemem support.  Each section is a maximum of 64MB.  The sections
 * are offset by 128MB and can cover 128MB, so that gives us a maximum
 * of 29 physmem bits.
 */
#define MAX_PHYSMEM_BITS      29
#define SECTION_SIZE_BITS     26

#endif

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