WebSVN – HelenOS – Diff – /trunk/kernel/arch/mips32/include/exception.h


/*
 * Copyright (c) 2003-2004 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 mips32 
 * @{
 */
/** @file
 */
 
#ifndef KERN_mips32_EXCEPTION_H_
#define KERN_mips32_EXCEPTION_H_
 
#include <arch/types.h>
#include <typedefs.h>
#include <arch/cp0.h>
 
#define EXC_Int     0
#define EXC_Mod     1
#define EXC_TLBL    2
#define EXC_TLBS    3
#define EXC_AdEL    4
#define EXC_AdES    5
#define EXC_IBE     6
#define EXC_DBE     7
#define EXC_Sys     8
#define EXC_Bp      9
#define EXC_RI      10
#define EXC_CpU     11
#define EXC_Ov      12
#define EXC_Tr      13
#define EXC_VCEI    14
#define EXC_FPE     15
#define EXC_WATCH   23
#define EXC_VCED    31
 
struct istate {
    uint32_t at;
    uint32_t v0;
    uint32_t v1;
    uint32_t a0;
    uint32_t a1;
    uint32_t a2;
    uint32_t a3;
    uint32_t t0;
    uint32_t t1;
    uint32_t t2;
    uint32_t t3;
    uint32_t t4;
    uint32_t t5;
    uint32_t t6;
    uint32_t t7;
    uint32_t s0;
    uint32_t s1;
    uint32_t s2;
    uint32_t s3;
    uint32_t s4;
    uint32_t s5;
    uint32_t s6;
    uint32_t s7;
    uint32_t t8;
    uint32_t t9;
    uint32_t gp;
    uint32_t sp;
    uint32_t s8;
    uint32_t ra;
   
    uint32_t lo;
    uint32_t hi;
 
    uint32_t status; /* cp0_status */
    uint32_t epc; /* cp0_epc */
    uint32_t k1; /* We use it as thread-local pointer */
};
 
static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
{
    istate->epc = retaddr;
}
 
/** Return true if exception happened while in userspace */
static inline int istate_from_uspace(istate_t *istate)
{
    return istate->status & cp0_status_um_bit;
}
static inline unative_t istate_get_pc(istate_t *istate)
{
    return istate->epc;
}
 
extern void exception(istate_t *istate);
extern void tlb_refill_entry(void);
extern void exception_entry(void);
extern void cache_error_entry(void);
extern void exception_init(void);
 
#endif
 
/** @}
 */
 

Rev 1948	Rev 2071
1	/*	1	/*
2	* Copyright (C) 2003-2004 Jakub Jermar	2	* Copyright (c) 2003-2004 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 mips32	29	/** @addtogroup mips32
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_mips32_EXCEPTION_H_	35	#ifndef KERN_mips32_EXCEPTION_H_
36	#define KERN_mips32_EXCEPTION_H_	36	#define KERN_mips32_EXCEPTION_H_
37		37
38	#include <arch/types.h>	38	#include <arch/types.h>
39	#include <typedefs.h>	39	#include <typedefs.h>
40	#include <arch/cp0.h>	40	#include <arch/cp0.h>
41		41
42	#define EXC_Int 0	42	#define EXC_Int 0
43	#define EXC_Mod 1	43	#define EXC_Mod 1
44	#define EXC_TLBL 2	44	#define EXC_TLBL 2
45	#define EXC_TLBS 3	45	#define EXC_TLBS 3
46	#define EXC_AdEL 4	46	#define EXC_AdEL 4
47	#define EXC_AdES 5	47	#define EXC_AdES 5
48	#define EXC_IBE 6	48	#define EXC_IBE 6
49	#define EXC_DBE 7	49	#define EXC_DBE 7
50	#define EXC_Sys 8	50	#define EXC_Sys 8
51	#define EXC_Bp 9	51	#define EXC_Bp 9
52	#define EXC_RI 10	52	#define EXC_RI 10
53	#define EXC_CpU 11	53	#define EXC_CpU 11
54	#define EXC_Ov 12	54	#define EXC_Ov 12
55	#define EXC_Tr 13	55	#define EXC_Tr 13
56	#define EXC_VCEI 14	56	#define EXC_VCEI 14
57	#define EXC_FPE 15	57	#define EXC_FPE 15
58	#define EXC_WATCH 23	58	#define EXC_WATCH 23
59	#define EXC_VCED 31	59	#define EXC_VCED 31
60		60
61	struct istate {	61	struct istate {
62	uint32_t at;	62	uint32_t at;
63	uint32_t v0;	63	uint32_t v0;
64	uint32_t v1;	64	uint32_t v1;
65	uint32_t a0;	65	uint32_t a0;
66	uint32_t a1;	66	uint32_t a1;
67	uint32_t a2;	67	uint32_t a2;
68	uint32_t a3;	68	uint32_t a3;
69	uint32_t t0;	69	uint32_t t0;
70	uint32_t t1;	70	uint32_t t1;
71	uint32_t t2;	71	uint32_t t2;
72	uint32_t t3;	72	uint32_t t3;
73	uint32_t t4;	73	uint32_t t4;
74	uint32_t t5;	74	uint32_t t5;
75	uint32_t t6;	75	uint32_t t6;
76	uint32_t t7;	76	uint32_t t7;
77	uint32_t s0;	77	uint32_t s0;
78	uint32_t s1;	78	uint32_t s1;
79	uint32_t s2;	79	uint32_t s2;
80	uint32_t s3;	80	uint32_t s3;
81	uint32_t s4;	81	uint32_t s4;
82	uint32_t s5;	82	uint32_t s5;
83	uint32_t s6;	83	uint32_t s6;
84	uint32_t s7;	84	uint32_t s7;
85	uint32_t t8;	85	uint32_t t8;
86	uint32_t t9;	86	uint32_t t9;
87	uint32_t gp;	87	uint32_t gp;
88	uint32_t sp;	88	uint32_t sp;
89	uint32_t s8;	89	uint32_t s8;
90	uint32_t ra;	90	uint32_t ra;
91		91
92	uint32_t lo;	92	uint32_t lo;
93	uint32_t hi;	93	uint32_t hi;
94		94
95	uint32_t status; /* cp0_status */	95	uint32_t status; /* cp0_status */
96	uint32_t epc; /* cp0_epc */	96	uint32_t epc; /* cp0_epc */
97	uint32_t k1; /* We use it as thread-local pointer */	97	uint32_t k1; /* We use it as thread-local pointer */
98	};	98	};
99		99
100	static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)	100	static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
101	{	101	{
102	istate->epc = retaddr;	102	istate->epc = retaddr;
103	}	103	}
104		104
105	/** Return true if exception happened while in userspace */	105	/** Return true if exception happened while in userspace */
106	static inline int istate_from_uspace(istate_t *istate)	106	static inline int istate_from_uspace(istate_t *istate)
107	{	107	{
108	return istate->status & cp0_status_um_bit;	108	return istate->status & cp0_status_um_bit;
109	}	109	}
110	static inline unative_t istate_get_pc(istate_t *istate)	110	static inline unative_t istate_get_pc(istate_t *istate)
111	{	111	{
112	return istate->epc;	112	return istate->epc;
113	}	113	}
114		114
115	extern void exception(istate_t *istate);	115	extern void exception(istate_t *istate);
116	extern void tlb_refill_entry(void);	116	extern void tlb_refill_entry(void);
117	extern void exception_entry(void);	117	extern void exception_entry(void);
118	extern void cache_error_entry(void);	118	extern void cache_error_entry(void);
119	extern void exception_init(void);	119	extern void exception_init(void);
120		120
121	#endif	121	#endif
122		122
123	/** @}	123	/** @}
124	*/	124	*/
125		125

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(root)/trunk/kernel/arch/mips32/include/exception.h – Rev 1948 → 2071