2024-09-09 08:52:07 +00:00
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/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*
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* based on kexec.h from other architectures in linux-2.6.18
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*/
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#ifndef _ASM_TILE_KEXEC_H
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#define _ASM_TILE_KEXEC_H
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#include <asm/page.h>
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2024-09-09 08:57:42 +00:00
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#ifndef __tilegx__
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2024-09-09 08:52:07 +00:00
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/* Maximum physical address we can use pages from. */
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#define KEXEC_SOURCE_MEMORY_LIMIT TASK_SIZE
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/* Maximum address we can reach in physical address mode. */
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#define KEXEC_DESTINATION_MEMORY_LIMIT TASK_SIZE
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/* Maximum address we can use for the control code buffer. */
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#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
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2024-09-09 08:57:42 +00:00
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#else
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/* We need to limit the memory below PGDIR_SIZE since
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* we only setup page table for [0, PGDIR_SIZE) before final kexec.
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*/
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/* Maximum physical address we can use pages from. */
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#define KEXEC_SOURCE_MEMORY_LIMIT PGDIR_SIZE
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/* Maximum address we can reach in physical address mode. */
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#define KEXEC_DESTINATION_MEMORY_LIMIT PGDIR_SIZE
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/* Maximum address we can use for the control code buffer. */
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#define KEXEC_CONTROL_MEMORY_LIMIT PGDIR_SIZE
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#endif
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2024-09-09 08:52:07 +00:00
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#define KEXEC_CONTROL_PAGE_SIZE PAGE_SIZE
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/*
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* We don't bother to provide a unique identifier, since we can only
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* reboot with a single type of kernel image anyway.
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*/
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#define KEXEC_ARCH KEXEC_ARCH_DEFAULT
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/* Use the tile override for the page allocator. */
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struct page *kimage_alloc_pages_arch(gfp_t gfp_mask, unsigned int order);
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#define kimage_alloc_pages_arch kimage_alloc_pages_arch
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#define MAX_NOTE_BYTES 1024
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/* Defined in arch/tile/kernel/relocate_kernel.S */
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extern const unsigned char relocate_new_kernel[];
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extern const unsigned long relocate_new_kernel_size;
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extern void relocate_new_kernel_end(void);
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/* Provide a dummy definition to avoid build failures. */
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static inline void crash_setup_regs(struct pt_regs *n, struct pt_regs *o)
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{
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}
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#endif /* _ASM_TILE_KEXEC_H */
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