WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ia32/src/interrupt.c


/*
 * 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.
 */
 
#include <arch/interrupt.h>
#include <syscall/syscall.h>
#include <print.h>
#include <debug.h>
#include <panic.h>
#include <arch/i8259.h>
#include <func.h>
#include <cpu.h>
#include <arch/asm.h>
#include <mm/tlb.h>
#include <mm/as.h>
#include <arch.h>
#include <symtab.h>
#include <proc/thread.h>
#include <proc/task.h>
#include <synch/spinlock.h>
#include <arch/ddi/ddi.h>
#include <ipc/sysipc.h>
#include <interrupt.h>
 
/*
 * Interrupt and exception dispatching.
 */
 
void (* disable_irqs_function)(__u16 irqmask) = NULL;
void (* enable_irqs_function)(__u16 irqmask) = NULL;
void (* eoi_function)(void) = NULL;
 
static void PRINT_INFO_ERRCODE(istate_t *istate)
{
    char *symbol = get_symtab_entry(istate->eip);
 
    if (!symbol)
        symbol = "";
 
    if (CPU)
        printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
    else
        printf("----------------EXCEPTION OCCURED----------------\n");
       
    printf("%%eip: %#x (%s)\n",istate->eip,symbol);
    printf("ERROR_WORD=%#x\n", istate->error_word);
    printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);
    printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n",  istate->eax,istate->ecx,istate->edx,&istate->stack[0]);
#ifdef CONFIG_DEBUG_ALLREGS
    printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n",  istate->esi,istate->edi,istate->ebp,istate->ebx);
#endif
    printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
    printf("       %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
}
 
void null_interrupt(int n, istate_t *istate)
{
    PRINT_INFO_ERRCODE(istate);
    panic("unserviced interrupt: %d\n", n);
}
 
/** General Protection Fault. */
void gp_fault(int n, istate_t *istate)
{
    if (TASK) {
        count_t ver;
       
        spinlock_lock(&TASK->lock);
        ver = TASK->arch.iomapver;
        spinlock_unlock(&TASK->lock);
   
        if (CPU->arch.iomapver_copy != ver) {
            /*
             * This fault can be caused by an early access
             * to I/O port because of an out-dated
             * I/O Permission bitmap installed on CPU.
             * Install the fresh copy and restart
             * the instruction.
             */
            io_perm_bitmap_install();
            return;
        }
    }
 
    PRINT_INFO_ERRCODE(istate);
    panic("general protection fault\n");
}
 
void ss_fault(int n, istate_t *istate)
{
    PRINT_INFO_ERRCODE(istate);
    panic("stack fault\n");
}
 
void simd_fp_exception(int n, istate_t *istate)
{
 
    PRINT_INFO_ERRCODE(istate);
    __u32 mxcsr;
    asm
    (
        "stmxcsr %0;\n"
        :"=m"(mxcsr)
    );
    printf("MXCSR: %#zX\n",(__native)(mxcsr));
    panic("SIMD FP exception(19)\n");
}
 
void nm_fault(int n, istate_t *istate)
{
#ifdef CONFIG_FPU_LAZY     
    scheduler_fpu_lazy_request();
#else
    panic("fpu fault");
#endif
}
 
void page_fault(int n, istate_t *istate)
{
    __address page;
 
    page = read_cr2();
    if (as_page_fault(page, istate) == AS_PF_FAULT) {
        PRINT_INFO_ERRCODE(istate);
        printf("page fault address: %#x\n", page);
        panic("page fault\n");
    }
}
 
void syscall(int n, istate_t *istate)
{
    panic("Obsolete syscall handler.");
}
 
void tlb_shootdown_ipi(int n, istate_t *istate)
{
    trap_virtual_eoi();
    tlb_shootdown_ipi_recv();
}
 
void trap_virtual_enable_irqs(__u16 irqmask)
{
    if (enable_irqs_function)
        enable_irqs_function(irqmask);
    else
        panic("no enable_irqs_function\n");
}
 
void trap_virtual_disable_irqs(__u16 irqmask)
{
    if (disable_irqs_function)
        disable_irqs_function(irqmask);
    else
        panic("no disable_irqs_function\n");
}
 
void trap_virtual_eoi(void)
{
    if (eoi_function)
        eoi_function();
    else
        panic("no eoi_function\n");
 
}
 
static void ipc_int(int n, istate_t *istate)
{
    trap_virtual_eoi();
    ipc_irq_send_notif(n-IVT_IRQBASE);
}
 
 
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(__native irq)
{
    if (irq == IRQ_CLK)
        return;
    exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
}
 

Rev 1258	Rev 1288
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	#include <arch/interrupt.h>	29	#include <arch/interrupt.h>
30	#include <syscall/syscall.h>	30	#include <syscall/syscall.h>
31	#include <print.h>	31	#include <print.h>
32	#include <debug.h>	32	#include <debug.h>
33	#include <panic.h>	33	#include <panic.h>
34	#include <arch/i8259.h>	34	#include <arch/i8259.h>
35	#include <func.h>	35	#include <func.h>
36	#include <cpu.h>	36	#include <cpu.h>
37	#include <arch/asm.h>	37	#include <arch/asm.h>
38	#include <mm/tlb.h>	38	#include <mm/tlb.h>
39	#include <mm/as.h>	39	#include <mm/as.h>
40	#include <arch.h>	40	#include <arch.h>
41	#include <symtab.h>	41	#include <symtab.h>
42	#include <proc/thread.h>	42	#include <proc/thread.h>
43	#include <proc/task.h>	43	#include <proc/task.h>
44	#include <synch/spinlock.h>	44	#include <synch/spinlock.h>
45	#include <arch/ddi/ddi.h>	45	#include <arch/ddi/ddi.h>
46	#include <ipc/sysipc.h>	46	#include <ipc/sysipc.h>
47	#include <interrupt.h>	47	#include <interrupt.h>
48		48
49	/*	49	/*
50	* Interrupt and exception dispatching.	50	* Interrupt and exception dispatching.
51	*/	51	*/
52		52
53	void (* disable_irqs_function)(__u16 irqmask) = NULL;	53	void (* disable_irqs_function)(__u16 irqmask) = NULL;
54	void (* enable_irqs_function)(__u16 irqmask) = NULL;	54	void (* enable_irqs_function)(__u16 irqmask) = NULL;
55	void (* eoi_function)(void) = NULL;	55	void (* eoi_function)(void) = NULL;
56		56
57	static void PRINT_INFO_ERRCODE(istate_t *istate)	57	static void PRINT_INFO_ERRCODE(istate_t *istate)
58	{	58	{
59	char *symbol = get_symtab_entry(istate->eip);	59	char *symbol = get_symtab_entry(istate->eip);
60		60
61	if (!symbol)	61	if (!symbol)
62	symbol = "";	62	symbol = "";
63		63
64	if (CPU)	64	if (CPU)
65	printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);	65	printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
66	else	66	else
67	printf("----------------EXCEPTION OCCURED----------------\n");	67	printf("----------------EXCEPTION OCCURED----------------\n");
68		68
69	printf("%%eip: %#x (%s)\n",istate->eip,symbol);	69	printf("%%eip: %#x (%s)\n",istate->eip,symbol);
70	printf("ERROR_WORD=%#x\n", istate->error_word);	70	printf("ERROR_WORD=%#x\n", istate->error_word);
71	printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);	71	printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);
72	printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]);	72	printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]);
73	#ifdef CONFIG_DEBUG_ALLREGS	73	#ifdef CONFIG_DEBUG_ALLREGS
74	printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx);	74	printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx);
75	#endif	75	#endif
76	printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);	76	printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
77	printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);	77	printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
78	}	78	}
79		79
80	void null_interrupt(int n, istate_t *istate)	80	void null_interrupt(int n, istate_t *istate)
81	{	81	{
82	PRINT_INFO_ERRCODE(istate);	82	PRINT_INFO_ERRCODE(istate);
83	panic("unserviced interrupt: %d\n", n);	83	panic("unserviced interrupt: %d\n", n);
84	}	84	}
85		85
86	/** General Protection Fault. */	86	/** General Protection Fault. */
87	void gp_fault(int n, istate_t *istate)	87	void gp_fault(int n, istate_t *istate)
88	{	88	{
89	if (TASK) {	89	if (TASK) {
90	count_t ver;	90	count_t ver;
91		91
92	spinlock_lock(&TASK->lock);	92	spinlock_lock(&TASK->lock);
93	ver = TASK->arch.iomapver;	93	ver = TASK->arch.iomapver;
94	spinlock_unlock(&TASK->lock);	94	spinlock_unlock(&TASK->lock);
95		95
96	if (CPU->arch.iomapver_copy != ver) {	96	if (CPU->arch.iomapver_copy != ver) {
97	/*	97	/*
98	* This fault can be caused by an early access	98	* This fault can be caused by an early access
99	* to I/O port because of an out-dated	99	* to I/O port because of an out-dated
100	* I/O Permission bitmap installed on CPU.	100	* I/O Permission bitmap installed on CPU.
101	* Install the fresh copy and restart	101	* Install the fresh copy and restart
102	* the instruction.	102	* the instruction.
103	*/	103	*/
104	io_perm_bitmap_install();	104	io_perm_bitmap_install();
105	return;	105	return;
106	}	106	}
107	}	107	}
108		108
109	PRINT_INFO_ERRCODE(istate);	109	PRINT_INFO_ERRCODE(istate);
110	panic("general protection fault\n");	110	panic("general protection fault\n");
111	}	111	}
112		112
113	void ss_fault(int n, istate_t *istate)	113	void ss_fault(int n, istate_t *istate)
114	{	114	{
115	PRINT_INFO_ERRCODE(istate);	115	PRINT_INFO_ERRCODE(istate);
116	panic("stack fault\n");	116	panic("stack fault\n");
117	}	117	}
118		118
119	void simd_fp_exception(int n, istate_t *istate)	119	void simd_fp_exception(int n, istate_t *istate)
120	{	120	{
121		121
122	PRINT_INFO_ERRCODE(istate);	122	PRINT_INFO_ERRCODE(istate);
123	__u32 mxcsr;	123	__u32 mxcsr;
124	asm	124	asm
125	(	125	(
126	"stmxcsr %0;\n"	126	"stmxcsr %0;\n"
127	:"=m"(mxcsr)	127	:"=m"(mxcsr)
128	);	128	);
129	printf("MXCSR: %#zX\n",(__native)(mxcsr));	129	printf("MXCSR: %#zX\n",(__native)(mxcsr));
130	panic("SIMD FP exception(19)\n");	130	panic("SIMD FP exception(19)\n");
131	}	131	}
132		132
133	void nm_fault(int n, istate_t *istate)	133	void nm_fault(int n, istate_t *istate)
134	{	134	{
135	#ifdef CONFIG_FPU_LAZY	135	#ifdef CONFIG_FPU_LAZY
136	scheduler_fpu_lazy_request();	136	scheduler_fpu_lazy_request();
137	#else	137	#else
138	panic("fpu fault");	138	panic("fpu fault");
139	#endif	139	#endif
140	}	140	}
141		141
142	void page_fault(int n, istate_t *istate)	142	void page_fault(int n, istate_t *istate)
143	{	143	{
144	__address page;	144	__address page;
145		145
146	page = read_cr2();	146	page = read_cr2();
147	if (!as_page_fault(page)) {	147	if (as_page_fault(page, istate) == AS_PF_FAULT) {
148	PRINT_INFO_ERRCODE(istate);	148	PRINT_INFO_ERRCODE(istate);
149	printf("page fault address: %#x\n", page);	149	printf("page fault address: %#x\n", page);
150	panic("page fault\n");	150	panic("page fault\n");
151	}	151	}
152	}	152	}
153		153
154	void syscall(int n, istate_t *istate)	154	void syscall(int n, istate_t *istate)
155	{	155	{
156	panic("Obsolete syscall handler.");	156	panic("Obsolete syscall handler.");
157	}	157	}
158		158
159	void tlb_shootdown_ipi(int n, istate_t *istate)	159	void tlb_shootdown_ipi(int n, istate_t *istate)
160	{	160	{
161	trap_virtual_eoi();	161	trap_virtual_eoi();
162	tlb_shootdown_ipi_recv();	162	tlb_shootdown_ipi_recv();
163	}	163	}
164		164
165	void trap_virtual_enable_irqs(__u16 irqmask)	165	void trap_virtual_enable_irqs(__u16 irqmask)
166	{	166	{
167	if (enable_irqs_function)	167	if (enable_irqs_function)
168	enable_irqs_function(irqmask);	168	enable_irqs_function(irqmask);
169	else	169	else
170	panic("no enable_irqs_function\n");	170	panic("no enable_irqs_function\n");
171	}	171	}
172		172
173	void trap_virtual_disable_irqs(__u16 irqmask)	173	void trap_virtual_disable_irqs(__u16 irqmask)
174	{	174	{
175	if (disable_irqs_function)	175	if (disable_irqs_function)
176	disable_irqs_function(irqmask);	176	disable_irqs_function(irqmask);
177	else	177	else
178	panic("no disable_irqs_function\n");	178	panic("no disable_irqs_function\n");
179	}	179	}
180		180
181	void trap_virtual_eoi(void)	181	void trap_virtual_eoi(void)
182	{	182	{
183	if (eoi_function)	183	if (eoi_function)
184	eoi_function();	184	eoi_function();
185	else	185	else
186	panic("no eoi_function\n");	186	panic("no eoi_function\n");
187		187
188	}	188	}
189		189
190	static void ipc_int(int n, istate_t *istate)	190	static void ipc_int(int n, istate_t *istate)
191	{	191	{
192	trap_virtual_eoi();	192	trap_virtual_eoi();
193	ipc_irq_send_notif(n-IVT_IRQBASE);	193	ipc_irq_send_notif(n-IVT_IRQBASE);
194	}	194	}
195		195
196		196
197	/* Reregister irq to be IPC-ready */	197	/* Reregister irq to be IPC-ready */
198	void irq_ipc_bind_arch(__native irq)	198	void irq_ipc_bind_arch(__native irq)
199	{	199	{
200	if (irq == IRQ_CLK)	200	if (irq == IRQ_CLK)
201	return;	201	return;
202	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);	202	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
203	}	203	}
204		204

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia32/src/interrupt.c – Rev 1258 → 1288