WebSVN – HelenOS-historic – Diff – /kernel/trunk/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.
 */
 
#ifndef __mips32_EXCEPTION_H__
#define __mips32_EXCEPTION_H__
 
#ifndef __mips32_TYPES_H__
#  include <arch/types.h>
#endif
 
#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 {
    __u32 at;
    __u32 v0;
    __u32 v1;
    __u32 a0;
    __u32 a1;
    __u32 a2;
    __u32 a3;
    __u32 t0;
    __u32 t1;
    __u32 t2;
    __u32 t3;
    __u32 t4;
    __u32 t5;
    __u32 t6;
    __u32 t7;
    __u32 s0;
    __u32 s1;
    __u32 s2;
    __u32 s3;
    __u32 s4;
    __u32 s5;
    __u32 s6;
    __u32 s7;
    __u32 t8;
    __u32 t9;
    __u32 gp;
    __u32 sp;
    __u32 s8;
    __u32 ra;
   
    __u32 lo;
    __u32 hi;
 
    __u32 status; /* cp0_status */
    __u32 epc; /* cp0_epc */
    __u32 k1; /* We use it as thread-local pointer */
};
 
static inline void istate_set_retaddr(istate_t *istate, __address 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 __native 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 1293	Rev 1595
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	#ifndef __mips32_EXCEPTION_H__	29	#ifndef __mips32_EXCEPTION_H__
30	#define __mips32_EXCEPTION_H__	30	#define __mips32_EXCEPTION_H__
31		31
32	#ifndef __mips32_TYPES_H__	32	#ifndef __mips32_TYPES_H__
33	# include <arch/types.h>	33	# include <arch/types.h>
34	#endif	34	#endif
35		35
36	#include <typedefs.h>	36	#include <typedefs.h>
-		37	#include <arch/cp0.h>
37		38
38	#define EXC_Int 0	39	#define EXC_Int 0
39	#define EXC_Mod 1	40	#define EXC_Mod 1
40	#define EXC_TLBL 2	41	#define EXC_TLBL 2
41	#define EXC_TLBS 3	42	#define EXC_TLBS 3
42	#define EXC_AdEL 4	43	#define EXC_AdEL 4
43	#define EXC_AdES 5	44	#define EXC_AdES 5
44	#define EXC_IBE 6	45	#define EXC_IBE 6
45	#define EXC_DBE 7	46	#define EXC_DBE 7
46	#define EXC_Sys 8	47	#define EXC_Sys 8
47	#define EXC_Bp 9	48	#define EXC_Bp 9
48	#define EXC_RI 10	49	#define EXC_RI 10
49	#define EXC_CpU 11	50	#define EXC_CpU 11
50	#define EXC_Ov 12	51	#define EXC_Ov 12
51	#define EXC_Tr 13	52	#define EXC_Tr 13
52	#define EXC_VCEI 14	53	#define EXC_VCEI 14
53	#define EXC_FPE 15	54	#define EXC_FPE 15
54	#define EXC_WATCH 23	55	#define EXC_WATCH 23
55	#define EXC_VCED 31	56	#define EXC_VCED 31
56		57
57	struct istate {	58	struct istate {
58	__u32 at;	59	__u32 at;
59	__u32 v0;	60	__u32 v0;
60	__u32 v1;	61	__u32 v1;
61	__u32 a0;	62	__u32 a0;
62	__u32 a1;	63	__u32 a1;
63	__u32 a2;	64	__u32 a2;
64	__u32 a3;	65	__u32 a3;
65	__u32 t0;	66	__u32 t0;
66	__u32 t1;	67	__u32 t1;
67	__u32 t2;	68	__u32 t2;
68	__u32 t3;	69	__u32 t3;
69	__u32 t4;	70	__u32 t4;
70	__u32 t5;	71	__u32 t5;
71	__u32 t6;	72	__u32 t6;
72	__u32 t7;	73	__u32 t7;
73	__u32 s0;	74	__u32 s0;
74	__u32 s1;	75	__u32 s1;
75	__u32 s2;	76	__u32 s2;
76	__u32 s3;	77	__u32 s3;
77	__u32 s4;	78	__u32 s4;
78	__u32 s5;	79	__u32 s5;
79	__u32 s6;	80	__u32 s6;
80	__u32 s7;	81	__u32 s7;
81	__u32 t8;	82	__u32 t8;
82	__u32 t9;	83	__u32 t9;
83	__u32 gp;	84	__u32 gp;
84	__u32 sp;	85	__u32 sp;
85	__u32 s8;	86	__u32 s8;
86	__u32 ra;	87	__u32 ra;
87		88
88	__u32 lo;	89	__u32 lo;
89	__u32 hi;	90	__u32 hi;
90		91
91	__u32 status; /* cp0_status */	92	__u32 status; /* cp0_status */
92	__u32 epc; /* cp0_epc */	93	__u32 epc; /* cp0_epc */
93	__u32 k1; /* We use it as thread-local pointer */	94	__u32 k1; /* We use it as thread-local pointer */
94	};	95	};
95		96
96	static inline void istate_set_retaddr(istate_t *istate, __address retaddr)	97	static inline void istate_set_retaddr(istate_t *istate, __address retaddr)
97	{	98	{
98	istate->epc = retaddr;	99	istate->epc = retaddr;
99	}	100	}
-		101
-		102	/** Return true if exception happened while in userspace */
-		103	static inline int istate_from_uspace(istate_t *istate)
-		104	{
-		105	return istate->status & cp0_status_um_bit;
-		106	}
-		107	static inline __native istate_get_pc(istate_t *istate)
-		108	{
-		109	return istate->epc;
-		110	}
100		111
101	extern void exception(istate_t *istate);	112	extern void exception(istate_t *istate);
102	extern void tlb_refill_entry(void);	113	extern void tlb_refill_entry(void);
103	extern void exception_entry(void);	114	extern void exception_entry(void);
104	extern void cache_error_entry(void);	115	extern void cache_error_entry(void);
105	extern void exception_init(void);	116	extern void exception_init(void);
106		117
107	#endif	118	#endif
108		119

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/mips32/include/exception.h – Rev 1293 → 1595