WebSVN – HelenOS – Diff – /branches/sparc/kernel/arch/sparc64/include/trap/sun4v/mmu.h


/*
 * Copyright (c) 2006 Jakub Jermar
 * Copyright (c) 2008 Pavel Rimsky
 * 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 sparc64interrupt
 * @{
 */
/**
 * @file
 * @brief This file contains fast MMU trap handlers.
 */
 
#ifndef KERN_sparc64_sun4v_MMU_TRAP_H_
#define KERN_sparc64_sun4v_MMU_TRAP_H_
 
#include <arch/stack.h>
#include <arch/sun4v/regdef.h>
#include <arch/mm/tlb.h>
#include <arch/mm/sun4v/mmu.h>
#include <arch/mm/sun4v/tte.h>
#include <arch/trap/regwin.h>
 
#ifdef CONFIG_TSB
#include <arch/mm/tsb.h>
#endif
 
#define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS 0x64
#define TT_FAST_DATA_ACCESS_MMU_MISS        0x68
#define TT_FAST_DATA_ACCESS_PROTECTION      0x6c
 
#define FAST_MMU_HANDLER_SIZE           128
 
#ifdef __ASM__
 
.macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER
.endm
 
/*
 * So far it is here only to process the trap which occurs when the kernel
 * needs to access the bootinfo structure, which is placed in the bootloader
 * memory (i.e. before address 0x400000).
 */
.macro FAST_DATA_ACCESS_MMU_MISS_HANDLER tl
    save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
    set 0x8000, %o0
    set 0x0, %o1
    setx 0x80000000804087c3, %g1, %o2
    set 0x3, %o3
    ta 0x83
    restore %g0, 0, %g0
    retry
.endm
 
.macro FAST_DATA_ACCESS_PROTECTION_HANDLER tl
.endm
 
#endif /* __ASM__ */
 
#endif
 
/** @}
 */
 

Rev 3743	Rev 3748
1	/*	1	/*
2	* Copyright (c) 2006 Jakub Jermar	2	* Copyright (c) 2006 Jakub Jermar
3	* Copyright (c) 2008 Pavel Rimsky	3	* Copyright (c) 2008 Pavel Rimsky
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	/** @addtogroup sparc64interrupt	30	/** @addtogroup sparc64interrupt
31	* @{	31	* @{
32	*/	32	*/
33	/**	33	/**
34	* @file	34	* @file
35	* @brief This file contains fast MMU trap handlers.	35	* @brief This file contains fast MMU trap handlers.
36	*/	36	*/
37		37
38	#ifndef KERN_sparc64_sun4v_MMU_TRAP_H_	38	#ifndef KERN_sparc64_sun4v_MMU_TRAP_H_
39	#define KERN_sparc64_sun4v_MMU_TRAP_H_	39	#define KERN_sparc64_sun4v_MMU_TRAP_H_
40		40
41	#include <arch/stack.h>	41	#include <arch/stack.h>
42	#include <arch/sun4v/regdef.h>	42	#include <arch/sun4v/regdef.h>
43	#include <arch/mm/tlb.h>	43	#include <arch/mm/tlb.h>
44	#include <arch/mm/sun4v/mmu.h>	44	#include <arch/mm/sun4v/mmu.h>
45	#include <arch/mm/sun4v/tte.h>	45	#include <arch/mm/sun4v/tte.h>
46	#include <arch/trap/regwin.h>	46	#include <arch/trap/regwin.h>
47		47
48	#ifdef CONFIG_TSB	48	#ifdef CONFIG_TSB
49	#include <arch/mm/tsb.h>	49	#include <arch/mm/tsb.h>
50	#endif	50	#endif
51		51
52	#define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS 0x64	52	#define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS 0x64
53	#define TT_FAST_DATA_ACCESS_MMU_MISS 0x68	53	#define TT_FAST_DATA_ACCESS_MMU_MISS 0x68
54	#define TT_FAST_DATA_ACCESS_PROTECTION 0x6c	54	#define TT_FAST_DATA_ACCESS_PROTECTION 0x6c
55		55
56	#define FAST_MMU_HANDLER_SIZE 128	56	#define FAST_MMU_HANDLER_SIZE 128
57		57
58	#ifdef __ASM__	58	#ifdef __ASM__
59		59
60	.macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER	60	.macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER
61	.endm	61	.endm
62		62
63	/*	63	/*
64	* So far it is here only to process the trap which occurs when the kernel	64	* So far it is here only to process the trap which occurs when the kernel
65	* needs to access the bootinfo structure, which is placed in the bootloader	65	* needs to access the bootinfo structure, which is placed in the bootloader
66	* memory (i.e. before address 0x400000).	66	* memory (i.e. before address 0x400000).
67	*/	67	*/
68	.macro FAST_DATA_ACCESS_MMU_MISS_HANDLER tl	68	.macro FAST_DATA_ACCESS_MMU_MISS_HANDLER tl
-		69	save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
69	set 0x8000, %o0	70	set 0x8000, %o0
70	set 0x0, %o1	71	set 0x0, %o1
71	setx 0x80000000804087c3, %g1, %o2	72	setx 0x80000000804087c3, %g1, %o2
72	set 0x3, %o3	73	set 0x3, %o3
73	ta 0x83	74	ta 0x83
-		75	restore %g0, 0, %g0
74	retry	76	retry
75	.endm	77	.endm
76		78
77	.macro FAST_DATA_ACCESS_PROTECTION_HANDLER tl	79	.macro FAST_DATA_ACCESS_PROTECTION_HANDLER tl
78	.endm	80	.endm
79		81
80	#endif /* __ASM__ */	82	#endif /* __ASM__ */
81		83
82	#endif	84	#endif
83		85
84	/** @}	86	/** @}
85	*/	87	*/
86		88

Subversion Repositories HelenOS

(root)/branches/sparc/kernel/arch/sparc64/include/trap/sun4v/mmu.h – Rev 3743 → 3748