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.
 */
 
/** @addtogroup ia32interrupt
 
 * @{
 */
/** @file
 */
 
#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)
{
    ipc_irq_send_notif(n-IVT_IRQBASE);
    trap_virtual_eoi();
}
 
 
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(__native irq)
{
    if (irq == IRQ_CLK)
        return;
    trap_virtual_enable_irqs(1 << irq);
    exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
}
 
/** @}
 */
 
 

Rev 1703	Rev 1705
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 ia32	29	/** @addtogroup ia32interrupt
30	* @ingroup interrupt	-
31	* @{	30	* @{
32	*/	31	*/
33	/** @file	32	/** @file
34	*/	33	*/
35		34
36	#include <arch/interrupt.h>	35	#include <arch/interrupt.h>
37	#include <syscall/syscall.h>	36	#include <syscall/syscall.h>
38	#include <print.h>	37	#include <print.h>
39	#include <debug.h>	38	#include <debug.h>
40	#include <panic.h>	39	#include <panic.h>
41	#include <arch/drivers/i8259.h>	40	#include <arch/drivers/i8259.h>
42	#include <func.h>	41	#include <func.h>
43	#include <cpu.h>	42	#include <cpu.h>
44	#include <arch/asm.h>	43	#include <arch/asm.h>
45	#include <mm/tlb.h>	44	#include <mm/tlb.h>
46	#include <mm/as.h>	45	#include <mm/as.h>
47	#include <arch.h>	46	#include <arch.h>
48	#include <symtab.h>	47	#include <symtab.h>
49	#include <proc/thread.h>	48	#include <proc/thread.h>
50	#include <proc/task.h>	49	#include <proc/task.h>
51	#include <synch/spinlock.h>	50	#include <synch/spinlock.h>
52	#include <arch/ddi/ddi.h>	51	#include <arch/ddi/ddi.h>
53	#include <ipc/sysipc.h>	52	#include <ipc/sysipc.h>
54	#include <interrupt.h>	53	#include <interrupt.h>
55		54
56	/*	55	/*
57	* Interrupt and exception dispatching.	56	* Interrupt and exception dispatching.
58	*/	57	*/
59		58
60	void (* disable_irqs_function)(__u16 irqmask) = NULL;	59	void (* disable_irqs_function)(__u16 irqmask) = NULL;
61	void (* enable_irqs_function)(__u16 irqmask) = NULL;	60	void (* enable_irqs_function)(__u16 irqmask) = NULL;
62	void (* eoi_function)(void) = NULL;	61	void (* eoi_function)(void) = NULL;
63		62
64	void PRINT_INFO_ERRCODE(istate_t *istate)	63	void PRINT_INFO_ERRCODE(istate_t *istate)
65	{	64	{
66	char *symbol = get_symtab_entry(istate->eip);	65	char *symbol = get_symtab_entry(istate->eip);
67		66
68	if (!symbol)	67	if (!symbol)
69	symbol = "";	68	symbol = "";
70		69
71	if (CPU)	70	if (CPU)
72	printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);	71	printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
73	else	72	else
74	printf("----------------EXCEPTION OCCURED----------------\n");	73	printf("----------------EXCEPTION OCCURED----------------\n");
75		74
76	printf("%%eip: %#x (%s)\n",istate->eip,symbol);	75	printf("%%eip: %#x (%s)\n",istate->eip,symbol);
77	printf("ERROR_WORD=%#x\n", istate->error_word);	76	printf("ERROR_WORD=%#x\n", istate->error_word);
78	printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);	77	printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);
79	printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]);	78	printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]);
80	#ifdef CONFIG_DEBUG_ALLREGS	79	#ifdef CONFIG_DEBUG_ALLREGS
81	printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx);	80	printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx);
82	#endif	81	#endif
83	printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);	82	printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
84	printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);	83	printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
85	}	84	}
86		85
87	void null_interrupt(int n, istate_t *istate)	86	void null_interrupt(int n, istate_t *istate)
88	{	87	{
89	fault_if_from_uspace(istate, "unserviced interrupt: %d", n);	88	fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
90		89
91	PRINT_INFO_ERRCODE(istate);	90	PRINT_INFO_ERRCODE(istate);
92	panic("unserviced interrupt: %d\n", n);	91	panic("unserviced interrupt: %d\n", n);
93	}	92	}
94		93
95	/** General Protection Fault. */	94	/** General Protection Fault. */
96	void gp_fault(int n, istate_t *istate)	95	void gp_fault(int n, istate_t *istate)
97	{	96	{
98	if (TASK) {	97	if (TASK) {
99	count_t ver;	98	count_t ver;
100		99
101	spinlock_lock(&TASK->lock);	100	spinlock_lock(&TASK->lock);
102	ver = TASK->arch.iomapver;	101	ver = TASK->arch.iomapver;
103	spinlock_unlock(&TASK->lock);	102	spinlock_unlock(&TASK->lock);
104		103
105	if (CPU->arch.iomapver_copy != ver) {	104	if (CPU->arch.iomapver_copy != ver) {
106	/*	105	/*
107	* This fault can be caused by an early access	106	* This fault can be caused by an early access
108	* to I/O port because of an out-dated	107	* to I/O port because of an out-dated
109	* I/O Permission bitmap installed on CPU.	108	* I/O Permission bitmap installed on CPU.
110	* Install the fresh copy and restart	109	* Install the fresh copy and restart
111	* the instruction.	110	* the instruction.
112	*/	111	*/
113	io_perm_bitmap_install();	112	io_perm_bitmap_install();
114	return;	113	return;
115	}	114	}
116	fault_if_from_uspace(istate, "general protection fault");	115	fault_if_from_uspace(istate, "general protection fault");
117	}	116	}
118		117
119	PRINT_INFO_ERRCODE(istate);	118	PRINT_INFO_ERRCODE(istate);
120	panic("general protection fault\n");	119	panic("general protection fault\n");
121	}	120	}
122		121
123	void ss_fault(int n, istate_t *istate)	122	void ss_fault(int n, istate_t *istate)
124	{	123	{
125	fault_if_from_uspace(istate, "stack fault");	124	fault_if_from_uspace(istate, "stack fault");
126		125
127	PRINT_INFO_ERRCODE(istate);	126	PRINT_INFO_ERRCODE(istate);
128	panic("stack fault\n");	127	panic("stack fault\n");
129	}	128	}
130		129
131	void simd_fp_exception(int n, istate_t *istate)	130	void simd_fp_exception(int n, istate_t *istate)
132	{	131	{
133	__u32 mxcsr;	132	__u32 mxcsr;
134	asm	133	asm
135	(	134	(
136	"stmxcsr %0;\n"	135	"stmxcsr %0;\n"
137	:"=m"(mxcsr)	136	:"=m"(mxcsr)
138	);	137	);
139	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zX",	138	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zX",
140	(__native)mxcsr);	139	(__native)mxcsr);
141		140
142	PRINT_INFO_ERRCODE(istate);	141	PRINT_INFO_ERRCODE(istate);
143	printf("MXCSR: %#zX\n",(__native)(mxcsr));	142	printf("MXCSR: %#zX\n",(__native)(mxcsr));
144	panic("SIMD FP exception(19)\n");	143	panic("SIMD FP exception(19)\n");
145	}	144	}
146		145
147	void nm_fault(int n, istate_t *istate)	146	void nm_fault(int n, istate_t *istate)
148	{	147	{
149	#ifdef CONFIG_FPU_LAZY	148	#ifdef CONFIG_FPU_LAZY
150	scheduler_fpu_lazy_request();	149	scheduler_fpu_lazy_request();
151	#else	150	#else
152	fault_if_from_uspace(istate, "fpu fault");	151	fault_if_from_uspace(istate, "fpu fault");
153	panic("fpu fault");	152	panic("fpu fault");
154	#endif	153	#endif
155	}	154	}
156		155
157	void syscall(int n, istate_t *istate)	156	void syscall(int n, istate_t *istate)
158	{	157	{
159	panic("Obsolete syscall handler.");	158	panic("Obsolete syscall handler.");
160	}	159	}
161		160
162	void tlb_shootdown_ipi(int n, istate_t *istate)	161	void tlb_shootdown_ipi(int n, istate_t *istate)
163	{	162	{
164	trap_virtual_eoi();	163	trap_virtual_eoi();
165	tlb_shootdown_ipi_recv();	164	tlb_shootdown_ipi_recv();
166	}	165	}
167		166
168	void trap_virtual_enable_irqs(__u16 irqmask)	167	void trap_virtual_enable_irqs(__u16 irqmask)
169	{	168	{
170	if (enable_irqs_function)	169	if (enable_irqs_function)
171	enable_irqs_function(irqmask);	170	enable_irqs_function(irqmask);
172	else	171	else
173	panic("no enable_irqs_function\n");	172	panic("no enable_irqs_function\n");
174	}	173	}
175		174
176	void trap_virtual_disable_irqs(__u16 irqmask)	175	void trap_virtual_disable_irqs(__u16 irqmask)
177	{	176	{
178	if (disable_irqs_function)	177	if (disable_irqs_function)
179	disable_irqs_function(irqmask);	178	disable_irqs_function(irqmask);
180	else	179	else
181	panic("no disable_irqs_function\n");	180	panic("no disable_irqs_function\n");
182	}	181	}
183		182
184	void trap_virtual_eoi(void)	183	void trap_virtual_eoi(void)
185	{	184	{
186	if (eoi_function)	185	if (eoi_function)
187	eoi_function();	186	eoi_function();
188	else	187	else
189	panic("no eoi_function\n");	188	panic("no eoi_function\n");
190		189
191	}	190	}
192		191
193	static void ipc_int(int n, istate_t *istate)	192	static void ipc_int(int n, istate_t *istate)
194	{	193	{
195	ipc_irq_send_notif(n-IVT_IRQBASE);	194	ipc_irq_send_notif(n-IVT_IRQBASE);
196	trap_virtual_eoi();	195	trap_virtual_eoi();
197	}	196	}
198		197
199		198
200	/* Reregister irq to be IPC-ready */	199	/* Reregister irq to be IPC-ready */
201	void irq_ipc_bind_arch(__native irq)	200	void irq_ipc_bind_arch(__native irq)
202	{	201	{
203	if (irq == IRQ_CLK)	202	if (irq == IRQ_CLK)
204	return;	203	return;
205	trap_virtual_enable_irqs(1 << irq);	204	trap_virtual_enable_irqs(1 << irq);
206	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);	205	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
207	}	206	}
208		207
209	/** @}	208	/** @}
210	*/	209	*/
211		210
212		211

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia32/src/interrupt.c – Rev 1703 → 1705