WebSVN – HelenOS – Diff – /branches/dynload/kernel/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.
 */
 
/** @addtogroup genericmm
 * @{
 */
/** @file
 */
 
#ifndef KERN_TLB_H_
#define KERN_TLB_H_
 
#include <arch/mm/asid.h>
#include <arch/types.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. */
typedef enum {
    /** Invalid type. */
    TLB_INVL_INVALID = 0,
    /** Invalidate all entries in TLB. */
    TLB_INVL_ALL,
    /** Invalidate all entries belonging to one address space. */
    TLB_INVL_ASID,
    /** Invalidate specified page range belonging to one address space. */
    TLB_INVL_PAGES
} tlb_invalidate_type_t;
 
/** TLB shootdown message. */
typedef struct {
    tlb_invalidate_type_t type; /**< Message type. */
    asid_t asid;            /**< Address space identifier. */
    uintptr_t page;         /**< Page address. */
    size_t count;           /**< Number of pages to invalidate. */
} 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,
    uintptr_t page, size_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, uintptr_t page, size_t cnt);
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/branches/dynload/kernel/generic/include/mm/tlb.h – Rev 2927 → 4691

Rev 2927		Rev 4691
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	/** @addtogroup genericmm	29	/** @addtogroup genericmm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_TLB_H_	35	#ifndef KERN_TLB_H_
36	#define KERN_TLB_H_	36	#define KERN_TLB_H_
37		37
38	#include <arch/mm/asid.h>	38	#include <arch/mm/asid.h>
39	#include <arch/types.h>	39	#include <arch/types.h>
40		40
41	/**	41	/**
42	* Number of TLB shootdown messages that can be queued in processor tlb_messages	42	* Number of TLB shootdown messages that can be queued in processor tlb_messages
43	* queue.	43	* queue.
44	*/	44	*/
45	#define TLB_MESSAGE_QUEUE_LEN 10	45	#define TLB_MESSAGE_QUEUE_LEN 10
46		46
47	/** Type of TLB shootdown message. */	47	/** Type of TLB shootdown message. */
48	typedef enum {	48	typedef enum {
49	/** Invalid type. */	49	/** Invalid type. */
50	TLB_INVL_INVALID = 0,	50	TLB_INVL_INVALID = 0,
51	/** Invalidate all entries in TLB. */	51	/** Invalidate all entries in TLB. */
52	TLB_INVL_ALL,	52	TLB_INVL_ALL,
53	/** Invalidate all entries belonging to one address space. */	53	/** Invalidate all entries belonging to one address space. */
54	TLB_INVL_ASID,	54	TLB_INVL_ASID,
55	/** Invalidate specified page range belonging to one address space. */	55	/** Invalidate specified page range belonging to one address space. */
56	TLB_INVL_PAGES	56	TLB_INVL_PAGES
57	} tlb_invalidate_type_t;	57	} tlb_invalidate_type_t;
58		58
59	/** TLB shootdown message. */	59	/** TLB shootdown message. */
60	typedef struct {	60	typedef struct {
61	tlb_invalidate_type_t type; /*< Message type. /	61	tlb_invalidate_type_t type; /*< Message type. /
62	asid_t asid; /*< Address space identifier. /	62	asid_t asid; /*< Address space identifier. /
63	uintptr_t page; /*< Page address. /	63	uintptr_t page; /*< Page address. /
64	count_t count; /*< Number of pages to invalidate. /	64	size_t count; /*< Number of pages to invalidate. /
65	} tlb_shootdown_msg_t;	65	} tlb_shootdown_msg_t;
66		66
67	extern void tlb_init(void);	67	extern void tlb_init(void);
68		68
69	#ifdef CONFIG_SMP	69	#ifdef CONFIG_SMP
70	extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid,	70	extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid,
71	uintptr_t page, count_t count);	71	uintptr_t page, size_t count);
72	extern void tlb_shootdown_finalize(void);	72	extern void tlb_shootdown_finalize(void);
73	extern void tlb_shootdown_ipi_recv(void);	73	extern void tlb_shootdown_ipi_recv(void);
74	#else	74	#else
75	#define tlb_shootdown_start(w, x, y, z)	75	#define tlb_shootdown_start(w, x, y, z)
76	#define tlb_shootdown_finalize()	76	#define tlb_shootdown_finalize()
77	#define tlb_shootdown_ipi_recv()	77	#define tlb_shootdown_ipi_recv()
78	#endif /* CONFIG_SMP */	78	#endif /* CONFIG_SMP */
79		79
80	/* Export TLB interface that each architecture must implement. */	80	/* Export TLB interface that each architecture must implement. */
81	extern void tlb_arch_init(void);	81	extern void tlb_arch_init(void);
82	extern void tlb_print(void);	82	extern void tlb_print(void);
83	extern void tlb_shootdown_ipi_send(void);	83	extern void tlb_shootdown_ipi_send(void);
84		84
85	extern void tlb_invalidate_all(void);	85	extern void tlb_invalidate_all(void);
86	extern void tlb_invalidate_asid(asid_t asid);	86	extern void tlb_invalidate_asid(asid_t asid);
87	extern void tlb_invalidate_pages(asid_t asid, uintptr_t page, count_t cnt);	87	extern void tlb_invalidate_pages(asid_t asid, uintptr_t page, size_t cnt);
88	#endif	88	#endif
89		89
90	/** @}	90	/** @}
91	*/	91	*/
92		92