/* * fixmap.h: compile-time virtual memory allocation * * This file is subject to the terms and conditions of the GNU General Public * License.  See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1998 Ingo Molnar * * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999 */ #ifndef _ASM_FIXMAP_H#define _ASM_FIXMAP_H #ifdef CONFIG_HIGHMEM#include <linux/threads.h>#include <linux/pgtable.h>#include <asm/kmap_size.h> /* The map slots for temporary mappings via kmap_atomic/local(). */enum fixed_addresses {	FIX_KMAP_BEGIN,	FIX_KMAP_END = FIX_KMAP_BEGIN +		(KM_MAX_IDX * NR_CPUS * DCACHE_N_COLORS) - 1,	__end_of_fixed_addresses}; #define FIXADDR_END     (XCHAL_KSEG_CACHED_VADDR - PAGE_SIZE)#define FIXADDR_SIZE	(__end_of_fixed_addresses << PAGE_SHIFT)/* Enforce that FIXADDR_START is PMD aligned to handle cache aliasing */#define FIXADDR_START	((FIXADDR_END - FIXADDR_SIZE) & PMD_MASK)#define FIXADDR_TOP	(FIXADDR_START + FIXADDR_SIZE - PAGE_SIZE) #include <asm-generic/fixmap.h> #endif /* CONFIG_HIGHMEM */#endif