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/*
* Copyright 2004-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef _BLACKFIN_SECTIONS_H
#define _BLACKFIN_SECTIONS_H
/* only used when MTD_UCLINUX */
extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
extern unsigned long _ramstart, _ramend, _rambase;
extern unsigned long memory_start, memory_end, physical_mem_end;
/*
* The weak markings on the lengths might seem weird, but this is required
* in order to make gcc accept the fact that these may actually have a value
* of 0 (since they aren't actually addresses, but sizes of sections).
*/
extern char _stext_l1[], _etext_l1[], _text_l1_lma[], __weak _text_l1_len[];
extern char _sdata_l1[], _edata_l1[], _sbss_l1[], _ebss_l1[],
_data_l1_lma[], __weak _data_l1_len[];
#ifdef CONFIG_ROMKERNEL
extern char _data_lma[], _data_len[], _sinitdata[], _einitdata[], _init_data_lma[], _init_data_len[];
#endif
extern char _sdata_b_l1[], _edata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
_data_b_l1_lma[], __weak _data_b_l1_len[];
extern char _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[],
_sbss_l2[], _ebss_l2[], _l2_lma[], __weak _l2_len[];
#include <asm/mem_map.h>
/* Blackfin systems have discontinuous memory map and no virtualized memory */
static inline int arch_is_kernel_text(unsigned long addr)
{
return
(L1_CODE_LENGTH &&
addr >= (unsigned long)_stext_l1 &&
addr < (unsigned long)_etext_l1)
||
(L2_LENGTH &&
addr >= (unsigned long)_stext_l2 &&
addr < (unsigned long)_etext_l2);
}
#define arch_is_kernel_text(addr) arch_is_kernel_text(addr)
static inline int arch_is_kernel_data(unsigned long addr)
{
return
(L1_DATA_A_LENGTH &&
addr >= (unsigned long)_sdata_l1 &&
addr < (unsigned long)_ebss_l1)
||
(L1_DATA_B_LENGTH &&
addr >= (unsigned long)_sdata_b_l1 &&
addr < (unsigned long)_ebss_b_l1)
||
(L2_LENGTH &&
addr >= (unsigned long)_sdata_l2 &&
addr < (unsigned long)_ebss_l2);
}
#define arch_is_kernel_data(addr) arch_is_kernel_data(addr)
#include <asm-generic/sections.h>
#endif