WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/include/mm/tlb.h


/*
 * Copyright (C) 2001-2004 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef __TLB_H__
#define __TLB_H__
 
#include <arch/mm/asid.h>
#include <arch/types.h>
#include <typedefs.h>
 
/**
 * Number of TLB shootdown messages that can be queued in processor
 * tlb_messages queue.
 */
#define TLB_MESSAGE_QUEUE_LEN   10
 
/** Type of TLB shootdown message. */
enum tlb_invalidate_type {
    TLB_INVL_INVALID = 0,       /**< Invalid type. */
    TLB_INVL_ALL,           /**< Invalidate all entries in TLB. */
    TLB_INVL_ASID,          /**< Invalidate all entries belonging to one address space. */
    TLB_INVL_PAGES          /**< Invalidate specified page range belonging to one address space. */
};
 
typedef enum tlb_invalidate_type tlb_invalidate_type_t;
 
/** TLB shootdown message. */
struct tlb_shootdown_msg {
    tlb_invalidate_type_t type; /**< Message type. */
    asid_t asid;            /**< Address space identifier. */
    __address page;         /**< Page address. */
    count_t count;          /**< Number of pages to invalidate. */
};
 
typedef struct tlb_shootdown_msg tlb_shootdown_msg_t;
 
extern void tlb_init(void);
 
#ifdef CONFIG_SMP
extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid, __address page, count_t count);
extern void tlb_shootdown_finalize(void);
extern void tlb_shootdown_ipi_recv(void);
#else
#  define tlb_shootdown_start(w, x, y, z)
#  define tlb_shootdown_finalize()
#  define tlb_shootdown_ipi_recv()
#endif /* CONFIG_SMP */
 
 
/* Export TLB interface that each architecture must implement. */
extern void tlb_arch_init(void);
extern void tlb_print(void);
extern void tlb_shootdown_ipi_send(void);
 
extern void tlb_invalidate_all(void);
extern void tlb_invalidate_asid(asid_t asid);
extern void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt);
#endif
 

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/include/mm/tlb.h @ 1702 – Rev 727 → 1002

Rev 727		Rev 1002
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#ifndef __TLB_H__	29	#ifndef __TLB_H__
30	#define __TLB_H__	30	#define __TLB_H__
31		31
32	#include <arch/mm/asid.h>	32	#include <arch/mm/asid.h>
33	#include <arch/types.h>	33	#include <arch/types.h>
34	#include <typedefs.h>	34	#include <typedefs.h>
35		35
-		36	/**
-		37	* Number of TLB shootdown messages that can be queued in processor
-		38	* tlb_messages queue.
-		39	*/
-		40	#define TLB_MESSAGE_QUEUE_LEN 10
-		41
36	/** Type of TLB shootdown message. */	42	/** Type of TLB shootdown message. */
37	enum tlb_invalidate_type {	43	enum tlb_invalidate_type {
38	TLB_INVL_INVALID = 0, /*< Invalid type. /	44	TLB_INVL_INVALID = 0, /*< Invalid type. /
39	TLB_INVL_ALL, /*< Invalidate all entries in TLB. /	45	TLB_INVL_ALL, /*< Invalidate all entries in TLB. /
40	TLB_INVL_ASID, /*< Invalidate all entries belonging to one address space. /	46	TLB_INVL_ASID, /*< Invalidate all entries belonging to one address space. /
41	TLB_INVL_PAGES /*< Invalidate specified page range belonging to one address space. /	47	TLB_INVL_PAGES /*< Invalidate specified page range belonging to one address space. /
42	};	48	};
43		-
44	typedef enum tlb_invalidate_type tlb_invalidate_type_t;	49	typedef enum tlb_invalidate_type tlb_invalidate_type_t;
45		50
46	/** TLB shootdown message. */	51	/** TLB shootdown message. */
47	struct tlb_shootdown_msg {	52	struct tlb_shootdown_msg {
48	tlb_invalidate_type_t type; /*< Message type. /	53	tlb_invalidate_type_t type; /*< Message type. /
49	asid_t asid; /*< Address space identifier. /	54	asid_t asid; /*< Address space identifier. /
50	__address page; /*< Page address. /	55	__address page; /*< Page address. /
-		56	count_t count; /*< Number of pages to invalidate. /
51	};	57	};
52		-
53	typedef struct tlb_shootdown_msg tlb_shootdown_msg_t;	58	typedef struct tlb_shootdown_msg tlb_shootdown_msg_t;
54		59
55	extern void tlb_init(void);	60	extern void tlb_init(void);
56		61
57	#ifdef CONFIG_SMP	62	#ifdef CONFIG_SMP
58	extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid, __address page, count_t cnt);	63	extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid, __address page, count_t count);
59	extern void tlb_shootdown_finalize(void);	64	extern void tlb_shootdown_finalize(void);
60	extern void tlb_shootdown_ipi_recv(void);	65	extern void tlb_shootdown_ipi_recv(void);
61	#else	66	#else
62	# define tlb_shootdown_start(w, x, y, z)	67	# define tlb_shootdown_start(w, x, y, z)
63	# define tlb_shootdown_finalize()	68	# define tlb_shootdown_finalize()
64	# define tlb_shootdown_ipi_recv()	69	# define tlb_shootdown_ipi_recv()
65	#endif /* CONFIG_SMP */	70	#endif /* CONFIG_SMP */
66		71
67		72
68	/* Export TLB interface that each architecture must implement. */	73	/* Export TLB interface that each architecture must implement. */
69	extern void tlb_arch_init(void);	74	extern void tlb_arch_init(void);
70	extern void tlb_print(void);	75	extern void tlb_print(void);
71	extern void tlb_shootdown_ipi_send(void);	76	extern void tlb_shootdown_ipi_send(void);
72		77
73	extern void tlb_invalidate_all(void);	78	extern void tlb_invalidate_all(void);
74	extern void tlb_invalidate_asid(asid_t asid);	79	extern void tlb_invalidate_asid(asid_t asid);
75	extern void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt);	80	extern void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt);
76	#endif	81	#endif
77		82