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/* Write-once data is writable only till the end of initialization. */
23extern char __w1data_begin[], __w1data_end[];
24
25extern char vdso_start[], vdso_end[];
26#ifdef CONFIG_COMPAT
27extern char vdso32_start[], vdso32_end[];
28#endif
29
30/* Not exactly sections, but PC comparison points in the code. */
31extern char __rt_sigreturn[], __rt_sigreturn_end[];
32#ifdef __tilegx__
33extern char __start_unalign_asm_code[], __end_unalign_asm_code[];
34#else
35extern char sys_cmpxchg[], __sys_cmpxchg_end[];
36extern char __sys_cmpxchg_grab_lock[];
37extern char __start_atomic_asm_code[], __end_atomic_asm_code[];
38#endif
39
40/* Handle the discontiguity between _sdata and _text. */
41static inline int arch_is_kernel_data(unsigned long addr)
42{
43	return addr >= (unsigned long)_sdata &&
44		addr < (unsigned long)_end;
45}
46
47#endif /* _ASM_TILE_SECTIONS_H */