1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/mach-rpc/include/mach/memory.h 4 * 5 * Copyright (C) 1996,1997,1998 Russell King. 6 * 7 * Changelog: 8 * 20-Oct-1996 RMK Created 9 * 31-Dec-1997 RMK Fixed definitions to reduce warnings 10 * 11-Jan-1998 RMK Uninlined to reduce hits on cache 11 * 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt 12 * 21-Mar-1999 RMK Renamed to memory.h 13 * RMK Added TASK_SIZE and PAGE_OFFSET 14 */ 15 #ifndef __ASM_ARCH_MEMORY_H 16 #define __ASM_ARCH_MEMORY_H 17 18 /* 19 * Cache flushing area - ROM 20 */ 21 #define FLUSH_BASE_PHYS 0x00000000 22 #define FLUSH_BASE 0xdf000000 23 24 /* 25 * Sparsemem support. Each section is a maximum of 64MB. The sections 26 * are offset by 128MB and can cover 128MB, so that gives us a maximum 27 * of 29 physmem bits. 28 */ 29 #define MAX_PHYSMEM_BITS 29 30 #define SECTION_SIZE_BITS 26 31 32 #endif