[linux-2.6-block.git] / arch / arc / include / asm / tlb.h

/*
 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _ASM_ARC_TLB_H
#define _ASM_ARC_TLB_H

#define tlb_flush(tlb)				\
do {						\
	if (tlb->fullmm)			\
		flush_tlb_mm((tlb)->mm);	\
} while (0)

/*
 * This pair is called at time of munmap/exit to flush cache and TLB entries
 * for mappings being torn down.
 * 1) cache-flush part -implemented via tlb_start_vma( ) for VIPT aliasing D$
 * 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range
 *
 * Note, read http://lkml.org/lkml/2004/1/15/6
 */
#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
#define tlb_start_vma(tlb, vma)
#else
#define tlb_start_vma(tlb, vma)						\
do {									\
	if (!tlb->fullmm)						\
		flush_cache_range(vma, vma->vm_start, vma->vm_end);	\
} while(0)
#endif

#define tlb_end_vma(tlb, vma)						\
do {									\
	if (!tlb->fullmm)						\
		flush_tlb_range(vma, vma->vm_start, vma->vm_end);	\
} while (0)

#define __tlb_remove_tlb_entry(tlb, ptep, address)

#include <linux/pagemap.h>
#include <asm-generic/tlb.h>

#endif /* _ASM_ARC_TLB_H */
Commit	Line	Data
cc562d2e VG	1	/*
	2	* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*/
	8
	9	#ifndef _ASM_ARC_TLB_H
	10	#define _ASM_ARC_TLB_H
	11
8d56bec2 VG	12	#define tlb_flush(tlb) \
	13	do { \
	14	if (tlb->fullmm) \
	15	flush_tlb_mm((tlb)->mm); \
	16	} while (0)
d79e678d VG	17
	18	/*
	19	* This pair is called at time of munmap/exit to flush cache and TLB entries
	20	* for mappings being torn down.
4102b533	21	* 1) cache-flush part -implemented via tlb_start_vma( ) for VIPT aliasing D$
8d56bec2	22	* 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range
d79e678d VG	23	*
	24	* Note, read http://lkml.org/lkml/2004/1/15/6
	25	*/
4102b533	26	#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
d79e678d	27	#define tlb_start_vma(tlb, vma)
4102b533 VG	28	#else
	29	#define tlb_start_vma(tlb, vma) \
	30	do { \
	31	if (!tlb->fullmm) \
	32	flush_cache_range(vma, vma->vm_start, vma->vm_end); \
	33	} while(0)
	34	#endif
8d56bec2 VG	35
	36	#define tlb_end_vma(tlb, vma) \
	37	do { \
	38	if (!tlb->fullmm) \
	39	flush_tlb_range(vma, vma->vm_start, vma->vm_end); \
	40	} while (0)
d79e678d VG	41
	42	#define __tlb_remove_tlb_entry(tlb, ptep, address)
	43
cc562d2e VG	44	#include <linux/pagemap.h>
	45	#include <asm-generic/tlb.h>
	46
cc562d2e	47	#endif /* _ASM_ARC_TLB_H */