5cd82a6d58
Since the link sizes never change at runtime, push the calculation out to the linker script to save some useless calculation costs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* Copyright 2004-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef _BLACKFIN_SECTIONS_H
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#define _BLACKFIN_SECTIONS_H
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/* only used when MTD_UCLINUX */
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extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
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extern unsigned long _ramstart, _ramend, _rambase;
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extern unsigned long memory_start, memory_end, physical_mem_end;
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/*
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* The weak markings on the lengths might seem weird, but this is required
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* in order to make gcc accept the fact that these may actually have a value
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* of 0 (since they aren't actually addresses, but sizes of sections).
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*/
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extern char _stext_l1[], _etext_l1[], _text_l1_lma[], __weak _text_l1_len[];
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extern char _sdata_l1[], _edata_l1[], _sbss_l1[], _ebss_l1[],
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_data_l1_lma[], __weak _data_l1_len[];
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extern char _sdata_b_l1[], _edata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
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_data_b_l1_lma[], __weak _data_b_l1_len[];
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extern char _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[],
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_sbss_l2[], _ebss_l2[], _l2_lma[], __weak _l2_len[];
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#include <asm/mem_map.h>
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/* Blackfin systems have discontinuous memory map and no virtualized memory */
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static inline int arch_is_kernel_text(unsigned long addr)
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{
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return
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(L1_CODE_LENGTH &&
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addr >= (unsigned long)_stext_l1 &&
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addr < (unsigned long)_etext_l1)
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(L2_LENGTH &&
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addr >= (unsigned long)_stext_l2 &&
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addr < (unsigned long)_etext_l2);
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}
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#define arch_is_kernel_text(addr) arch_is_kernel_text(addr)
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static inline int arch_is_kernel_data(unsigned long addr)
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{
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return
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(L1_DATA_A_LENGTH &&
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addr >= (unsigned long)_sdata_l1 &&
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addr < (unsigned long)_ebss_l1)
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(L1_DATA_B_LENGTH &&
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addr >= (unsigned long)_sdata_b_l1 &&
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addr < (unsigned long)_ebss_b_l1)
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(L2_LENGTH &&
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addr >= (unsigned long)_sdata_l2 &&
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addr < (unsigned long)_ebss_l2);
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}
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#define arch_is_kernel_data(addr) arch_is_kernel_data(addr)
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#include <asm-generic/sections.h>
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#endif
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