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/drivers/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;
 
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)
{
    fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
 
    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;
        }
        fault_if_from_uspace(istate, "general protection fault");
    }
 
    PRINT_INFO_ERRCODE(istate);
    panic("general protection fault\n");
}
 
void ss_fault(int n, istate_t *istate)
{
    fault_if_from_uspace(istate, "stack fault");
 
    PRINT_INFO_ERRCODE(istate);
    panic("stack fault\n");
}
 
void simd_fp_exception(int n, istate_t *istate)
{
 
 
    __u32 mxcsr;
    asm
    (
        "stmxcsr %0;\n"
        :"=m"(mxcsr)
    );
    fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zX",
                 (__native)mxcsr);
 
    PRINT_INFO_ERRCODE(istate);
    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
    fault_if_from_uspace(istate, "fpu fault");
    panic("fpu fault");
#endif
}
 
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 1477	Rev 1595
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/drivers/i8259.h>	34	#include <arch/drivers/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	void PRINT_INFO_ERRCODE(istate_t *istate)	57	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	fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
-		83
82	PRINT_INFO_ERRCODE(istate);	84	PRINT_INFO_ERRCODE(istate);
83	panic("unserviced interrupt: %d\n", n);	85	panic("unserviced interrupt: %d\n", n);
84	}	86	}
85		87
86	/** General Protection Fault. */	88	/** General Protection Fault. */
87	void gp_fault(int n, istate_t *istate)	89	void gp_fault(int n, istate_t *istate)
88	{	90	{
89	if (TASK) {	91	if (TASK) {
90	count_t ver;	92	count_t ver;
91		93
92	spinlock_lock(&TASK->lock);	94	spinlock_lock(&TASK->lock);
93	ver = TASK->arch.iomapver;	95	ver = TASK->arch.iomapver;
94	spinlock_unlock(&TASK->lock);	96	spinlock_unlock(&TASK->lock);
95		97
96	if (CPU->arch.iomapver_copy != ver) {	98	if (CPU->arch.iomapver_copy != ver) {
97	/*	99	/*
98	* This fault can be caused by an early access	100	* This fault can be caused by an early access
99	* to I/O port because of an out-dated	101	* to I/O port because of an out-dated
100	* I/O Permission bitmap installed on CPU.	102	* I/O Permission bitmap installed on CPU.
101	* Install the fresh copy and restart	103	* Install the fresh copy and restart
102	* the instruction.	104	* the instruction.
103	*/	105	*/
104	io_perm_bitmap_install();	106	io_perm_bitmap_install();
105	return;	107	return;
106	}	108	}
-		109	fault_if_from_uspace(istate, "general protection fault");
107	}	110	}
108		111
109	PRINT_INFO_ERRCODE(istate);	112	PRINT_INFO_ERRCODE(istate);
110	panic("general protection fault\n");	113	panic("general protection fault\n");
111	}	114	}
112		115
113	void ss_fault(int n, istate_t *istate)	116	void ss_fault(int n, istate_t *istate)
114	{	117	{
-		118	fault_if_from_uspace(istate, "stack fault");
-		119
115	PRINT_INFO_ERRCODE(istate);	120	PRINT_INFO_ERRCODE(istate);
116	panic("stack fault\n");	121	panic("stack fault\n");
117	}	122	}
118		123
119	void simd_fp_exception(int n, istate_t *istate)	124	void simd_fp_exception(int n, istate_t *istate)
120	{	125	{
121		-
122	PRINT_INFO_ERRCODE(istate);	-
123	__u32 mxcsr;	126	__u32 mxcsr;
124	asm	127	asm
125	(	128	(
126	"stmxcsr %0;\n"	129	"stmxcsr %0;\n"
127	:"=m"(mxcsr)	130	:"=m"(mxcsr)
128	);	131	);
-		132	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zX",
-		133	(__native)mxcsr);
-		134
-		135	PRINT_INFO_ERRCODE(istate);
129	printf("MXCSR: %#zX\n",(__native)(mxcsr));	136	printf("MXCSR: %#zX\n",(__native)(mxcsr));
130	panic("SIMD FP exception(19)\n");	137	panic("SIMD FP exception(19)\n");
131	}	138	}
132		139
133	void nm_fault(int n, istate_t *istate)	140	void nm_fault(int n, istate_t *istate)
134	{	141	{
135	#ifdef CONFIG_FPU_LAZY	142	#ifdef CONFIG_FPU_LAZY
136	scheduler_fpu_lazy_request();	143	scheduler_fpu_lazy_request();
137	#else	144	#else
-		145	fault_if_from_uspace(istate, "fpu fault");
138	panic("fpu fault");	146	panic("fpu fault");
139	#endif	147	#endif
140	}	148	}
141		149
142	void syscall(int n, istate_t *istate)	150	void syscall(int n, istate_t *istate)
143	{	151	{
144	panic("Obsolete syscall handler.");	152	panic("Obsolete syscall handler.");
145	}	153	}
146		154
147	void tlb_shootdown_ipi(int n, istate_t *istate)	155	void tlb_shootdown_ipi(int n, istate_t *istate)
148	{	156	{
149	trap_virtual_eoi();	157	trap_virtual_eoi();
150	tlb_shootdown_ipi_recv();	158	tlb_shootdown_ipi_recv();
151	}	159	}
152		160
153	void trap_virtual_enable_irqs(__u16 irqmask)	161	void trap_virtual_enable_irqs(__u16 irqmask)
154	{	162	{
155	if (enable_irqs_function)	163	if (enable_irqs_function)
156	enable_irqs_function(irqmask);	164	enable_irqs_function(irqmask);
157	else	165	else
158	panic("no enable_irqs_function\n");	166	panic("no enable_irqs_function\n");
159	}	167	}
160		168
161	void trap_virtual_disable_irqs(__u16 irqmask)	169	void trap_virtual_disable_irqs(__u16 irqmask)
162	{	170	{
163	if (disable_irqs_function)	171	if (disable_irqs_function)
164	disable_irqs_function(irqmask);	172	disable_irqs_function(irqmask);
165	else	173	else
166	panic("no disable_irqs_function\n");	174	panic("no disable_irqs_function\n");
167	}	175	}
168		176
169	void trap_virtual_eoi(void)	177	void trap_virtual_eoi(void)
170	{	178	{
171	if (eoi_function)	179	if (eoi_function)
172	eoi_function();	180	eoi_function();
173	else	181	else
174	panic("no eoi_function\n");	182	panic("no eoi_function\n");
175		183
176	}	184	}
177		185
178	static void ipc_int(int n, istate_t *istate)	186	static void ipc_int(int n, istate_t *istate)
179	{	187	{
180	trap_virtual_eoi();	188	trap_virtual_eoi();
181	ipc_irq_send_notif(n-IVT_IRQBASE);	189	ipc_irq_send_notif(n-IVT_IRQBASE);
182	}	190	}
183		191
184		192
185	/* Reregister irq to be IPC-ready */	193	/* Reregister irq to be IPC-ready */
186	void irq_ipc_bind_arch(__native irq)	194	void irq_ipc_bind_arch(__native irq)
187	{	195	{
188	if (irq == IRQ_CLK)	196	if (irq == IRQ_CLK)
189	return;	197	return;
190	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);	198	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
191	}	199	}
192		200

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia32/src/interrupt.c @ 1477 – Rev 1477 → 1595