git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 867e359b CM |
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 | ||
| 0707ad30 CM |
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 | |
| 867e359b CM |
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 */ |