/* * 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 */ |