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/*
* Copyright 2010 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*
* based on kexec.h from other architectures in linux-2.6.18
*/
#ifndef _ASM_TILE_KEXEC_H
#define _ASM_TILE_KEXEC_H
#include <asm/page.h>
#ifndef __tilegx__
/* Maximum physical address we can use pages from. */
#define KEXEC_SOURCE_MEMORY_LIMIT TASK_SIZE
/* Maximum address we can reach in physical address mode. */
#define KEXEC_DESTINATION_MEMORY_LIMIT TASK_SIZE
/* Maximum address we can use for the control code buffer. */
#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
#else
/* We need to limit the memory below PGDIR_SIZE since
* we only setup page table for [0, PGDIR_SIZE) before final kexec.
*/
/* Maximum physical address we can use pages from. */
#define KEXEC_SOURCE_MEMORY_LIMIT PGDIR_SIZE
/* Maximum address we can reach in physical address mode. */
#define KEXEC_DESTINATION_MEMORY_LIMIT PGDIR_SIZE
/* Maximum address we can use for the control code buffer. */
#define KEXEC_CONTROL_MEMORY_LIMIT PGDIR_SIZE
#endif
#define KEXEC_CONTROL_PAGE_SIZE PAGE_SIZE
/*
* We don't bother to provide a unique identifier, since we can only
* reboot with a single type of kernel image anyway.
*/
#define KEXEC_ARCH KEXEC_ARCH_DEFAULT
/* Use the tile override for the page allocator. */
struct page *kimage_alloc_pages_arch(gfp_t gfp_mask, unsigned int order);
#define kimage_alloc_pages_arch kimage_alloc_pages_arch
#define MAX_NOTE_BYTES 1024
/* Defined in arch/tile/kernel/relocate_kernel.S */
extern const unsigned char relocate_new_kernel[];
extern const unsigned long relocate_new_kernel_size;
extern void relocate_new_kernel_end(void);
/* Provide a dummy definition to avoid build failures. */
static inline void crash_setup_regs(struct pt_regs *n, struct pt_regs *o)
{
}
#endif /* _ASM_TILE_KEXEC_H */