1/* 2��* Copyright 2004-2009 Analog Devices Inc. 3��* 4��* Licensed under the GPL-2 or later. 5��*/ 6 7#ifndef _BLACKFIN_SECTIONS_H 8#define _BLACKFIN_SECTIONS_H 9 10/* only used when MTD_UCLINUX */ 11extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; 12 13extern unsigned long _ramstart, _ramend, _rambase; 14extern unsigned long memory_start, memory_end, physical_mem_end; 15 16/* 17 * The weak markings on the lengths might seem weird, but this is required 18 * in order to make gcc accept the fact that these may actually have a value 19 * of 0 (since they aren't actually addresses, but sizes of sections). 20 */ 21extern char _stext_l1[], _etext_l1[], _text_l1_lma[], __weak _text_l1_len[]; 22extern char _sdata_l1[], _edata_l1[], _sbss_l1[], _ebss_l1[], 23 _data_l1_lma[], __weak _data_l1_len[]; 24#ifdef CONFIG_ROMKERNEL 25extern char _data_lma[], _data_len[], _sinitdata[], _einitdata[], _init_data_lma[], _init_data_len[]; 26#endif 27extern char _sdata_b_l1[], _edata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], 28 _data_b_l1_lma[], __weak _data_b_l1_len[]; 29extern char _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], 30 _sbss_l2[], _ebss_l2[], _l2_lma[], __weak _l2_len[]; 31 32#include <asm/mem_map.h> 33 34/* Blackfin systems have discontinuous memory map and no virtualized memory */ 35static inline int arch_is_kernel_text(unsigned long addr) 36{ 37 return 38 (L1_CODE_LENGTH && 39 addr >= (unsigned long)_stext_l1 && 40 addr < (unsigned long)_etext_l1) 41 || 42 (L2_LENGTH && 43 addr >= (unsigned long)_stext_l2 && 44 addr < (unsigned long)_etext_l2); 45} 46#define arch_is_kernel_text(addr) arch_is_kernel_text(addr) 47 48static inline int arch_is_kernel_data(unsigned long addr) 49{ 50 return 51 (L1_DATA_A_LENGTH && 52 addr >= (unsigned long)_sdata_l1 && 53 addr < (unsigned long)_ebss_l1) 54 || 55 (L1_DATA_B_LENGTH && 56 addr >= (unsigned long)_sdata_b_l1 && 57 addr < (unsigned long)_ebss_b_l1) 58 || 59 (L2_LENGTH && 60 addr >= (unsigned long)_sdata_l2 && 61 addr < (unsigned long)_ebss_l2); 62} 63#define arch_is_kernel_data(addr) arch_is_kernel_data(addr) 64 65#include <asm-generic/sections.h> 66 67#endif 68