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 */ | ||
