WebSVN – HelenOS – Diff – /trunk/kernel/arch/ia32/include/interrupt.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 ia32interrupt
 * @{
 */
/** @file
 */
 
#ifndef KERN_ia32_INTERRUPT_H_
#define KERN_ia32_INTERRUPT_H_
 
#include <arch/types.h>
#include <arch/pm.h>
 
#define IVT_ITEMS       IDT_ITEMS
#define IVT_FIRST       0
 
#define EXC_COUNT   32
#define IRQ_COUNT   16
 
#define IVT_EXCBASE     0
#define IVT_IRQBASE     (IVT_EXCBASE + EXC_COUNT)
#define IVT_FREEBASE    (IVT_IRQBASE + IRQ_COUNT)
 
#define IRQ_CLK         0
#define IRQ_KBD         1
#define IRQ_PIC1        2
#define IRQ_PIC_SPUR    7
 
/* this one must have four least significant bits set to ones */
#define VECTOR_APIC_SPUR    (IVT_ITEMS - 1)
 
#if (((VECTOR_APIC_SPUR + 1) % 16) || VECTOR_APIC_SPUR >= IVT_ITEMS)
#error Wrong definition of VECTOR_APIC_SPUR
#endif
 
#define VECTOR_DEBUG                1
 
#define VECTOR_CLK                  (IVT_IRQBASE + IRQ_CLK)
#define VECTOR_PIC_SPUR             (IVT_IRQBASE + IRQ_PIC_SPUR)
 
#define VECTOR_SYSCALL              IVT_FREEBASE
#define VECTOR_TLB_SHOOTDOWN_IPI    (IVT_FREEBASE + 1)
#define VECTOR_DEBUG_IPI            (IVT_FREEBASE + 2)
 
struct istate {
    uint32_t eax;
    uint32_t ecx;
    uint32_t edx;
    uint32_t esi;
    uint32_t edi;
    uint32_t ebp;
    uint32_t ebx;
 
    uint32_t gs;
    uint32_t fs;
    uint32_t es;
    uint32_t ds;
 
    uint32_t error_word;
    uint32_t eip;
    uint32_t cs;
    uint32_t eflags;
    uint32_t stack[];
};
 
/** Return true if exception happened while in userspace */
static inline int istate_from_uspace(istate_t *istate)
{
    return !(istate->eip & 0x80000000);
}
 
static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
{
    istate->eip = retaddr;
}
 
static inline unative_t istate_get_pc(istate_t *istate)
{
    return istate->eip;
}
 
extern void (* disable_irqs_function)(uint16_t irqmask);
extern void (* enable_irqs_function)(uint16_t irqmask);
extern void (* eoi_function)(void);
 
extern void decode_istate(istate_t *istate);
extern void interrupt_init(void);
 
 
 
 
 
 
 
extern void trap_virtual_enable_irqs(uint16_t irqmask);
extern void trap_virtual_disable_irqs(uint16_t irqmask);
 
 
#endif
 
/** @}
 */
 

Rev 1939	Rev 1956
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 ia32interrupt	29	/** @addtogroup ia32interrupt
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_ia32_INTERRUPT_H_	35	#ifndef KERN_ia32_INTERRUPT_H_
36	#define KERN_ia32_INTERRUPT_H_	36	#define KERN_ia32_INTERRUPT_H_
37		37
38	#include <arch/types.h>	38	#include <arch/types.h>
39	#include <arch/pm.h>	39	#include <arch/pm.h>
40		40
41	#define IVT_ITEMS IDT_ITEMS	41	#define IVT_ITEMS IDT_ITEMS
42	#define IVT_FIRST 0	42	#define IVT_FIRST 0
43		43
44	#define EXC_COUNT 32	44	#define EXC_COUNT 32
45	#define IRQ_COUNT 16	45	#define IRQ_COUNT 16
46		46
47	#define IVT_EXCBASE 0	47	#define IVT_EXCBASE 0
48	#define IVT_IRQBASE (IVT_EXCBASE+EXC_COUNT)	48	#define IVT_IRQBASE (IVT_EXCBASE + EXC_COUNT)
49	#define IVT_FREEBASE (IVT_IRQBASE+IRQ_COUNT)	49	#define IVT_FREEBASE (IVT_IRQBASE + IRQ_COUNT)
50		50
51	#define IRQ_CLK 0	51	#define IRQ_CLK 0
52	#define IRQ_KBD 1	52	#define IRQ_KBD 1
53	#define IRQ_PIC1 2	53	#define IRQ_PIC1 2
54	#define IRQ_PIC_SPUR 7	54	#define IRQ_PIC_SPUR 7
55		55
56	/* this one must have four least significant bits set to ones */	56	/* this one must have four least significant bits set to ones */
57	#define VECTOR_APIC_SPUR (IVT_ITEMS-1)	57	#define VECTOR_APIC_SPUR (IVT_ITEMS - 1)
58		58
59	#if (((VECTOR_APIC_SPUR + 1)%16) \|\| VECTOR_APIC_SPUR >= IVT_ITEMS)	59	#if (((VECTOR_APIC_SPUR + 1) % 16) \|\| VECTOR_APIC_SPUR >= IVT_ITEMS)
60	#error Wrong definition of VECTOR_APIC_SPUR	60	#error Wrong definition of VECTOR_APIC_SPUR
61	#endif	61	#endif
62		62
63	#define VECTOR_DEBUG 1	63	#define VECTOR_DEBUG 1
64	#define VECTOR_PIC_SPUR (IVT_IRQBASE+IRQ_PIC_SPUR)	-
65	#define VECTOR_CLK (IVT_IRQBASE+IRQ_CLK)	64	#define VECTOR_CLK (IVT_IRQBASE + IRQ_CLK)
66	#define VECTOR_KBD (IVT_IRQBASE+IRQ_KBD)	65	#define VECTOR_PIC_SPUR (IVT_IRQBASE + IRQ_PIC_SPUR)
67		-
68	#define VECTOR_SYSCALL (IVT_FREEBASE+0)	66	#define VECTOR_SYSCALL IVT_FREEBASE
69	#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE+1)	67	#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE + 1)
70	#define VECTOR_DEBUG_IPI (IVT_FREEBASE+2)	68	#define VECTOR_DEBUG_IPI (IVT_FREEBASE + 2)
71		69
72	struct istate {	70	struct istate {
73	uint32_t eax;	71	uint32_t eax;
74	uint32_t ecx;	72	uint32_t ecx;
75	uint32_t edx;	73	uint32_t edx;
76	uint32_t esi;	74	uint32_t esi;
77	uint32_t edi;	75	uint32_t edi;
78	uint32_t ebp;	76	uint32_t ebp;
79	uint32_t ebx;	77	uint32_t ebx;
80		78
81	uint32_t gs;	79	uint32_t gs;
82	uint32_t fs;	80	uint32_t fs;
83	uint32_t es;	81	uint32_t es;
84	uint32_t ds;	82	uint32_t ds;
85		83
86	uint32_t error_word;	84	uint32_t error_word;
87	uint32_t eip;	85	uint32_t eip;
88	uint32_t cs;	86	uint32_t cs;
89	uint32_t eflags;	87	uint32_t eflags;
90	uint32_t stack[];	88	uint32_t stack[];
91	};	89	};
92		90
93	/** Return true if exception happened while in userspace */	91	/** Return true if exception happened while in userspace */
94	static inline int istate_from_uspace(istate_t *istate)	92	static inline int istate_from_uspace(istate_t *istate)
95	{	93	{
96	return !(istate->eip & 0x80000000);	94	return !(istate->eip & 0x80000000);
97	}	95	}
98		96
99	static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)	97	static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
100	{	98	{
101	istate->eip = retaddr;	99	istate->eip = retaddr;
102	}	100	}
103		101
104	static inline unative_t istate_get_pc(istate_t *istate)	102	static inline unative_t istate_get_pc(istate_t *istate)
105	{	103	{
106	return istate->eip;	104	return istate->eip;
107	}	105	}
108		106
109	extern void (* disable_irqs_function)(uint16_t irqmask);	107	extern void (* disable_irqs_function)(uint16_t irqmask);
110	extern void (* enable_irqs_function)(uint16_t irqmask);	108	extern void (* enable_irqs_function)(uint16_t irqmask);
111	extern void (* eoi_function)(void);	109	extern void (* eoi_function)(void);
112		110
113	extern void PRINT_INFO_ERRCODE(istate_t *istate);	111	extern void decode_istate(istate_t *istate);
114	extern void null_interrupt(int n, istate_t *istate);	112	extern void interrupt_init(void);
115	extern void gp_fault(int n, istate_t *istate);	-
116	extern void nm_fault(int n, istate_t *istate);	-
117	extern void ss_fault(int n, istate_t *istate);	-
118	extern void simd_fp_exception(int n, istate_t *istate);	-
119	extern void syscall(int n, istate_t *istate);	-
120	extern void tlb_shootdown_ipi(int n, istate_t *istate);	-
121		-
122	extern void trap_virtual_enable_irqs(uint16_t irqmask);	113	extern void trap_virtual_enable_irqs(uint16_t irqmask);
123	extern void trap_virtual_disable_irqs(uint16_t irqmask);	114	extern void trap_virtual_disable_irqs(uint16_t irqmask);
124	extern void trap_virtual_eoi(void);	-
125		115
126	#endif	116	#endif
127		117
128	/** @}	118	/** @}
129	*/	119	*/
130		120

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia32/include/interrupt.h @ 2071 – Rev 1939 → 1956