diff options
Diffstat (limited to 'arch/tile/include/asm/sections.h')
-rw-r--r-- | arch/tile/include/asm/sections.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/tile/include/asm/sections.h b/arch/tile/include/asm/sections.h new file mode 100644 index 000000000000..d062d463fca9 --- /dev/null +++ b/arch/tile/include/asm/sections.h | |||
@@ -0,0 +1,44 @@ | |||
1 | /* | ||
2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU General Public License | ||
6 | * as published by the Free Software Foundation, version 2. | ||
7 | * | ||
8 | * This program is distributed in the hope that it will be useful, but | ||
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | ||
11 | * NON INFRINGEMENT. See the GNU General Public License for | ||
12 | * more details. | ||
13 | */ | ||
14 | |||
15 | #ifndef _ASM_TILE_SECTIONS_H | ||
16 | #define _ASM_TILE_SECTIONS_H | ||
17 | |||
18 | #define arch_is_kernel_data arch_is_kernel_data | ||
19 | |||
20 | #include <asm-generic/sections.h> | ||
21 | |||
22 | /* Text and data are at different areas in the kernel VA space. */ | ||
23 | extern char _sinitdata[], _einitdata[]; | ||
24 | |||
25 | /* Write-once data is writable only till the end of initialization. */ | ||
26 | extern char __w1data_begin[], __w1data_end[]; | ||
27 | |||
28 | |||
29 | /* Not exactly sections, but PC comparison points in the code. */ | ||
30 | extern char __rt_sigreturn[], __rt_sigreturn_end[]; | ||
31 | #ifndef __tilegx__ | ||
32 | extern char sys_cmpxchg[], __sys_cmpxchg_end[]; | ||
33 | extern char __sys_cmpxchg_grab_lock[]; | ||
34 | extern char __start_atomic_asm_code[], __end_atomic_asm_code[]; | ||
35 | #endif | ||
36 | |||
37 | /* Handle the discontiguity between _sdata and _stext. */ | ||
38 | static inline int arch_is_kernel_data(unsigned long addr) | ||
39 | { | ||
40 | return addr >= (unsigned long)_sdata && | ||
41 | addr < (unsigned long)_end; | ||
42 | } | ||
43 | |||
44 | #endif /* _ASM_TILE_SECTIONS_H */ | ||