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			ARC700 MMU provides for tagging TLB entries with a 8-bit ASID to avoid having to flush the TLB every task switch. It also allows for a quick way to invalidate all the TLB entries for task useful for: * COW sementics during fork() * task exit()ing Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
		
			
				
	
	
		
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			23 lines
		
	
	
	
		
			505 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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|  *
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|  * This program is free software; you can redistribute it and/or modify
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|  * it under the terms of the GNU General Public License version 2 as
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|  * published by the Free Software Foundation.
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|  */
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| 
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| #ifndef _ASM_ARC_MMU_H
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| #define _ASM_ARC_MMU_H
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| 
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| #ifndef __ASSEMBLY__
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| 
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| typedef struct {
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| 	unsigned long asid;	/* Pvt Addr-Space ID for mm */
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| #ifdef CONFIG_ARC_TLB_DBG
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| 	struct task_struct *tsk;
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| #endif
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| } mm_context_t;
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| 
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| #endif
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| 
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| #endif
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