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 * based on kexec.h from other architectures in linux-2.6.18
15 */
16
17#ifndef _ASM_TILE_KEXEC_H
18#define _ASM_TILE_KEXEC_H
19
20#include <asm/page.h>
21
22/* Maximum physical address we can use pages from. */
23#define KEXEC_SOURCE_MEMORY_LIMIT TASK_SIZE
24/* Maximum address we can reach in physical address mode. */
25#define KEXEC_DESTINATION_MEMORY_LIMIT TASK_SIZE
26/* Maximum address we can use for the control code buffer. */
27#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
28
29#define KEXEC_CONTROL_PAGE_SIZE	PAGE_SIZE
30
31/*
32 * We don't bother to provide a unique identifier, since we can only
33 * reboot with a single type of kernel image anyway.
34 */
35#define KEXEC_ARCH KEXEC_ARCH_DEFAULT
36
37/* Use the tile override for the page allocator. */
38struct page *kimage_alloc_pages_arch(gfp_t gfp_mask, unsigned int order);
39#define kimage_alloc_pages_arch kimage_alloc_pages_arch
40
41#define MAX_NOTE_BYTES 1024
42
43/* Defined in arch/tile/kernel/relocate_kernel.S */
44extern const unsigned char relocate_new_kernel[];
45extern const unsigned long relocate_new_kernel_size;
46extern void relocate_new_kernel_end(void);
47
48/* Provide a dummy definition to avoid build failures. */
49static inline void crash_setup_regs(struct pt_regs *n, struct pt_regs *o)
50{
51}
52
53#endif /* _ASM_TILE_KEXEC_H */