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96f1050d | 1 | /* |
96956450 MF |
2 | * Copyright 2004-2009 Analog Devices Inc. |
3 | * | |
4 | * Licensed under the GPL-2 or later. | |
5 | */ | |
96f1050d | 6 | |
1394f032 BW |
7 | #ifndef _BLACKFIN_SECTIONS_H |
8 | #define _BLACKFIN_SECTIONS_H | |
9 | ||
5203fa82 MF |
10 | /* only used when MTD_UCLINUX */ |
11 | extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; | |
12 | ||
13 | extern unsigned long _ramstart, _ramend, _rambase; | |
14 | extern unsigned long memory_start, memory_end, physical_mem_end; | |
15 | ||
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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 | */ | |
21 | extern char _stext_l1[], _etext_l1[], _text_l1_lma[], __weak _text_l1_len[]; | |
22 | extern char _sdata_l1[], _edata_l1[], _sbss_l1[], _ebss_l1[], | |
23 | _data_l1_lma[], __weak _data_l1_len[]; | |
d86bfb16 BS |
24 | #ifdef CONFIG_ROMKERNEL |
25 | extern char _data_lma[], _data_len[], _sinitdata[], _einitdata[], _init_data_lma[], _init_data_len[]; | |
26 | #endif | |
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27 | extern char _sdata_b_l1[], _edata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], |
28 | _data_b_l1_lma[], __weak _data_b_l1_len[]; | |
29 | extern char _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], | |
30 | _sbss_l2[], _ebss_l2[], _l2_lma[], __weak _l2_len[]; | |
5203fa82 | 31 | |
e56770fb MF |
32 | #include <asm/mem_map.h> |
33 | ||
34 | /* Blackfin systems have discontinuous memory map and no virtualized memory */ | |
35 | static 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 | ||
48 | static 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 | ||
1394f032 | 67 | #endif |