WebSVN – HelenOS – Diff – /trunk/kernel/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>
#include <ddi/irq.h>
 
/*
 * Interrupt and exception dispatching.
 */
 
void (* disable_irqs_function)(uint16_t irqmask) = NULL;
void (* enable_irqs_function)(uint16_t irqmask) = NULL;
void (* eoi_function)(void) = NULL;
 
void decode_istate(istate_t *istate)
{
    char *symbol = get_symtab_entry(istate->eip);
 
    if (!symbol)
        symbol = "";
 
    if (CPU)
        printf("----------------EXCEPTION OCCURED (cpu%u)----------------\n", CPU->id);
    else
        printf("----------------EXCEPTION OCCURED----------------\n");
       
    printf("%%eip: %#lx (%s)\n", istate->eip, symbol);
    printf("ERROR_WORD=%#lx\n", istate->error_word);
    printf("%%cs=%#lx,flags=%#lx\n", istate->cs, istate->eflags);
    printf("%%eax=%#lx, %%ecx=%#lx, %%edx=%#lx, %%esp=%p\n", istate->eax, istate->ecx, istate->edx, &istate->stack[0]);
    printf("stack: %#lx, %#lx, %#lx, %#lx\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
    printf("       %#lx, %#lx, %#lx, %#lx\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
}
 
static void trap_virtual_eoi(void)
{
    if (eoi_function)
        eoi_function();
    else
        panic("No eoi_function.");
 
}
 
static void null_interrupt(int n, istate_t *istate)
{
    fault_if_from_uspace(istate, "Unserviced interrupt: %d.", n);
 
    decode_istate(istate);
    panic("Unserviced interrupt: %d.", n);
}
 
/** General Protection Fault. */
static void gp_fault(int n __attribute__((unused)), 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.");
    }
 
    decode_istate(istate);
    panic("General protection fault.");
}
 
static void ss_fault(int n __attribute__((unused)), istate_t *istate)
{
    fault_if_from_uspace(istate, "Stack fault.");
 
    decode_istate(istate);
    panic("Stack fault.");
}
 
static void simd_fp_exception(int n __attribute__((unused)), istate_t *istate)
{
    uint32_t mxcsr;
    asm (
        "stmxcsr %[mxcsr]\n"
        : [mxcsr] "=m" (mxcsr)
    );
    fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx.",
        (unative_t) mxcsr);
   
    decode_istate(istate);
    printf("MXCSR: %#lx\n", mxcsr);
    panic("SIMD FP exception(19).");
}
 
static void nm_fault(int n __attribute__((unused)), istate_t *istate __attribute__((unused)))
{
#ifdef CONFIG_FPU_LAZY     
    scheduler_fpu_lazy_request();
#else
    fault_if_from_uspace(istate, "FPU fault.");
    panic("FPU fault.");
#endif
}
 
#ifdef CONFIG_SMP
static void tlb_shootdown_ipi(int n __attribute__((unused)), istate_t *istate __attribute__((unused)))
{
    trap_virtual_eoi();
    tlb_shootdown_ipi_recv();
}
#endif
 
/** Handler of IRQ exceptions */
static void irq_interrupt(int n, istate_t *istate __attribute__((unused)))
{
    ASSERT(n >= IVT_IRQBASE);
   
    int inum = n - IVT_IRQBASE;
    bool ack = false;
    ASSERT(inum < IRQ_COUNT);
    ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1));
   
    irq_t *irq = irq_dispatch_and_lock(inum);
    if (irq) {
        /*
         * The IRQ handler was found.
         */
         
        if (irq->preack) {
            /* Send EOI before processing the interrupt */
            trap_virtual_eoi();
            ack = true;
        }
        irq->handler(irq);
        spinlock_unlock(&irq->lock);
    } else {
        /*
         * Spurious interrupt.
         */
#ifdef CONFIG_DEBUG
        printf("cpu%u: spurious interrupt (inum=%d)\n", CPU->id, inum);
#endif
    }
   
    if (!ack)
        trap_virtual_eoi();
}
 
void interrupt_init(void)
{
    int i;
   
    for (i = 0; i < IVT_ITEMS; i++)
        exc_register(i, "null", (iroutine) null_interrupt);
   
    for (i = 0; i < IRQ_COUNT; i++) {
        if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1))
            exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt);
    }
   
    exc_register(7, "nm_fault", (iroutine) nm_fault);
    exc_register(12, "ss_fault", (iroutine) ss_fault);
    exc_register(13, "gp_fault", (iroutine) gp_fault);
    exc_register(19, "simd_fp", (iroutine) simd_fp_exception);
   
#ifdef CONFIG_SMP
    exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi);
#endif
}
 
void trap_virtual_enable_irqs(uint16_t irqmask)
{
    if (enable_irqs_function)
        enable_irqs_function(irqmask);
    else
        panic("No enable_irqs_function.");
}
 
void trap_virtual_disable_irqs(uint16_t irqmask)
{
    if (disable_irqs_function)
        disable_irqs_function(irqmask);
    else
        panic("No disable_irqs_function.");
}
 
/** @}
 */
 

Rev 3906	Rev 4016
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	#include <arch/interrupt.h>	35	#include <arch/interrupt.h>
36	#include <syscall/syscall.h>	36	#include <syscall/syscall.h>
37	#include <print.h>	37	#include <print.h>
38	#include <debug.h>	38	#include <debug.h>
39	#include <panic.h>	39	#include <panic.h>
40	#include <arch/drivers/i8259.h>	40	#include <arch/drivers/i8259.h>
41	#include <func.h>	41	#include <func.h>
42	#include <cpu.h>	42	#include <cpu.h>
43	#include <arch/asm.h>	43	#include <arch/asm.h>
44	#include <mm/tlb.h>	44	#include <mm/tlb.h>
45	#include <mm/as.h>	45	#include <mm/as.h>
46	#include <arch.h>	46	#include <arch.h>
47	#include <symtab.h>	47	#include <symtab.h>
48	#include <proc/thread.h>	48	#include <proc/thread.h>
49	#include <proc/task.h>	49	#include <proc/task.h>
50	#include <synch/spinlock.h>	50	#include <synch/spinlock.h>
51	#include <arch/ddi/ddi.h>	51	#include <arch/ddi/ddi.h>
52	#include <ipc/sysipc.h>	52	#include <ipc/sysipc.h>
53	#include <interrupt.h>	53	#include <interrupt.h>
54	#include <ddi/irq.h>	54	#include <ddi/irq.h>
55		55
56	/*	56	/*
57	* Interrupt and exception dispatching.	57	* Interrupt and exception dispatching.
58	*/	58	*/
59		59
60	void (* disable_irqs_function)(uint16_t irqmask) = NULL;	60	void (* disable_irqs_function)(uint16_t irqmask) = NULL;
61	void (* enable_irqs_function)(uint16_t irqmask) = NULL;	61	void (* enable_irqs_function)(uint16_t irqmask) = NULL;
62	void (* eoi_function)(void) = NULL;	62	void (* eoi_function)(void) = NULL;
63		63
64	void decode_istate(istate_t *istate)	64	void decode_istate(istate_t *istate)
65	{	65	{
66	char *symbol = get_symtab_entry(istate->eip);	66	char *symbol = get_symtab_entry(istate->eip);
67		67
68	if (!symbol)	68	if (!symbol)
69	symbol = "";	69	symbol = "";
70		70
71	if (CPU)	71	if (CPU)
72	printf("----------------EXCEPTION OCCURED (cpu%u)----------------\n", CPU->id);	72	printf("----------------EXCEPTION OCCURED (cpu%u)----------------\n", CPU->id);
73	else	73	else
74	printf("----------------EXCEPTION OCCURED----------------\n");	74	printf("----------------EXCEPTION OCCURED----------------\n");
75		75
76	printf("%%eip: %#lx (%s)\n", istate->eip, symbol);	76	printf("%%eip: %#lx (%s)\n", istate->eip, symbol);
77	printf("ERROR_WORD=%#lx\n", istate->error_word);	77	printf("ERROR_WORD=%#lx\n", istate->error_word);
78	printf("%%cs=%#lx,flags=%#lx\n", istate->cs, istate->eflags);	78	printf("%%cs=%#lx,flags=%#lx\n", istate->cs, istate->eflags);
79	printf("%%eax=%#lx, %%ecx=%#lx, %%edx=%#lx, %%esp=%p\n", istate->eax, istate->ecx, istate->edx, &istate->stack[0]);	79	printf("%%eax=%#lx, %%ecx=%#lx, %%edx=%#lx, %%esp=%p\n", istate->eax, istate->ecx, istate->edx, &istate->stack[0]);
80	printf("stack: %#lx, %#lx, %#lx, %#lx\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);	80	printf("stack: %#lx, %#lx, %#lx, %#lx\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
81	printf(" %#lx, %#lx, %#lx, %#lx\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);	81	printf(" %#lx, %#lx, %#lx, %#lx\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
82	}	82	}
83		83
84	static void trap_virtual_eoi(void)	84	static void trap_virtual_eoi(void)
85	{	85	{
86	if (eoi_function)	86	if (eoi_function)
87	eoi_function();	87	eoi_function();
88	else	88	else
89	panic("No eoi_function.");	89	panic("No eoi_function.");
90		90
91	}	91	}
92		92
93	static void null_interrupt(int n, istate_t *istate)	93	static void null_interrupt(int n, istate_t *istate)
94	{	94	{
95	fault_if_from_uspace(istate, "Unserviced interrupt: %d.", n);	95	fault_if_from_uspace(istate, "Unserviced interrupt: %d.", n);
96		96
97	decode_istate(istate);	97	decode_istate(istate);
98	panic("Unserviced interrupt: %d.", n);	98	panic("Unserviced interrupt: %d.", n);
99	}	99	}
100		100
101	/** General Protection Fault. */	101	/** General Protection Fault. */
102	static void gp_fault(int n __attribute__((unused)), istate_t *istate)	102	static void gp_fault(int n __attribute__((unused)), istate_t *istate)
103	{	103	{
104	if (TASK) {	104	if (TASK) {
105	count_t ver;	105	count_t ver;
106		106
107	spinlock_lock(&TASK->lock);	107	spinlock_lock(&TASK->lock);
108	ver = TASK->arch.iomapver;	108	ver = TASK->arch.iomapver;
109	spinlock_unlock(&TASK->lock);	109	spinlock_unlock(&TASK->lock);
110		110
111	if (CPU->arch.iomapver_copy != ver) {	111	if (CPU->arch.iomapver_copy != ver) {
112	/*	112	/*
113	* This fault can be caused by an early access	113	* This fault can be caused by an early access
114	* to I/O port because of an out-dated	114	* to I/O port because of an out-dated
115	* I/O Permission bitmap installed on CPU.	115	* I/O Permission bitmap installed on CPU.
116	* Install the fresh copy and restart	116	* Install the fresh copy and restart
117	* the instruction.	117	* the instruction.
118	*/	118	*/
119	io_perm_bitmap_install();	119	io_perm_bitmap_install();
120	return;	120	return;
121	}	121	}
122	fault_if_from_uspace(istate, "General protection fault.");	122	fault_if_from_uspace(istate, "General protection fault.");
123	}	123	}
124		124
125	decode_istate(istate);	125	decode_istate(istate);
126	panic("General protection fault.");	126	panic("General protection fault.");
127	}	127	}
128		128
129	static void ss_fault(int n __attribute__((unused)), istate_t *istate)	129	static void ss_fault(int n __attribute__((unused)), istate_t *istate)
130	{	130	{
131	fault_if_from_uspace(istate, "Stack fault.");	131	fault_if_from_uspace(istate, "Stack fault.");
132		132
133	decode_istate(istate);	133	decode_istate(istate);
134	panic("Stack fault.");	134	panic("Stack fault.");
135	}	135	}
136		136
137	static void simd_fp_exception(int n __attribute__((unused)), istate_t *istate)	137	static void simd_fp_exception(int n __attribute__((unused)), istate_t *istate)
138	{	138	{
139	uint32_t mxcsr;	139	uint32_t mxcsr;
140	asm (	140	asm (
141	"stmxcsr %0;\n"	141	"stmxcsr %[mxcsr]\n"
142	: "=m" (mxcsr)	142	: [mxcsr] "=m" (mxcsr)
143	);	143	);
144	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx.",	144	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx.",
145	(unative_t) mxcsr);	145	(unative_t) mxcsr);
146		146
147	decode_istate(istate);	147	decode_istate(istate);
148	printf("MXCSR: %#lx\n", mxcsr);	148	printf("MXCSR: %#lx\n", mxcsr);
149	panic("SIMD FP exception(19).");	149	panic("SIMD FP exception(19).");
150	}	150	}
151		151
152	static void nm_fault(int n __attribute__((unused)), istate_t *istate __attribute__((unused)))	152	static void nm_fault(int n __attribute__((unused)), istate_t *istate __attribute__((unused)))
153	{	153	{
154	#ifdef CONFIG_FPU_LAZY	154	#ifdef CONFIG_FPU_LAZY
155	scheduler_fpu_lazy_request();	155	scheduler_fpu_lazy_request();
156	#else	156	#else
157	fault_if_from_uspace(istate, "FPU fault.");	157	fault_if_from_uspace(istate, "FPU fault.");
158	panic("FPU fault.");	158	panic("FPU fault.");
159	#endif	159	#endif
160	}	160	}
161		161
162	#ifdef CONFIG_SMP	162	#ifdef CONFIG_SMP
163	static void tlb_shootdown_ipi(int n __attribute__((unused)), istate_t *istate __attribute__((unused)))	163	static void tlb_shootdown_ipi(int n __attribute__((unused)), istate_t *istate __attribute__((unused)))
164	{	164	{
165	trap_virtual_eoi();	165	trap_virtual_eoi();
166	tlb_shootdown_ipi_recv();	166	tlb_shootdown_ipi_recv();
167	}	167	}
168	#endif	168	#endif
169		169
170	/** Handler of IRQ exceptions */	170	/** Handler of IRQ exceptions */
171	static void irq_interrupt(int n, istate_t *istate __attribute__((unused)))	171	static void irq_interrupt(int n, istate_t *istate __attribute__((unused)))
172	{	172	{
173	ASSERT(n >= IVT_IRQBASE);	173	ASSERT(n >= IVT_IRQBASE);
174		174
175	int inum = n - IVT_IRQBASE;	175	int inum = n - IVT_IRQBASE;
176	bool ack = false;	176	bool ack = false;
177	ASSERT(inum < IRQ_COUNT);	177	ASSERT(inum < IRQ_COUNT);
178	ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1));	178	ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1));
179		179
180	irq_t *irq = irq_dispatch_and_lock(inum);	180	irq_t *irq = irq_dispatch_and_lock(inum);
181	if (irq) {	181	if (irq) {
182	/*	182	/*
183	* The IRQ handler was found.	183	* The IRQ handler was found.
184	*/	184	*/
185		185
186	if (irq->preack) {	186	if (irq->preack) {
187	/* Send EOI before processing the interrupt */	187	/* Send EOI before processing the interrupt */
188	trap_virtual_eoi();	188	trap_virtual_eoi();
189	ack = true;	189	ack = true;
190	}	190	}
191	irq->handler(irq);	191	irq->handler(irq);
192	spinlock_unlock(&irq->lock);	192	spinlock_unlock(&irq->lock);
193	} else {	193	} else {
194	/*	194	/*
195	* Spurious interrupt.	195	* Spurious interrupt.
196	*/	196	*/
197	#ifdef CONFIG_DEBUG	197	#ifdef CONFIG_DEBUG
198	printf("cpu%u: spurious interrupt (inum=%d)\n", CPU->id, inum);	198	printf("cpu%u: spurious interrupt (inum=%d)\n", CPU->id, inum);
199	#endif	199	#endif
200	}	200	}
201		201
202	if (!ack)	202	if (!ack)
203	trap_virtual_eoi();	203	trap_virtual_eoi();
204	}	204	}
205		205
206	void interrupt_init(void)	206	void interrupt_init(void)
207	{	207	{
208	int i;	208	int i;
209		209
210	for (i = 0; i < IVT_ITEMS; i++)	210	for (i = 0; i < IVT_ITEMS; i++)
211	exc_register(i, "null", (iroutine) null_interrupt);	211	exc_register(i, "null", (iroutine) null_interrupt);
212		212
213	for (i = 0; i < IRQ_COUNT; i++) {	213	for (i = 0; i < IRQ_COUNT; i++) {
214	if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1))	214	if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1))
215	exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt);	215	exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt);
216	}	216	}
217		217
218	exc_register(7, "nm_fault", (iroutine) nm_fault);	218	exc_register(7, "nm_fault", (iroutine) nm_fault);
219	exc_register(12, "ss_fault", (iroutine) ss_fault);	219	exc_register(12, "ss_fault", (iroutine) ss_fault);
220	exc_register(13, "gp_fault", (iroutine) gp_fault);	220	exc_register(13, "gp_fault", (iroutine) gp_fault);
221	exc_register(19, "simd_fp", (iroutine) simd_fp_exception);	221	exc_register(19, "simd_fp", (iroutine) simd_fp_exception);
222		222
223	#ifdef CONFIG_SMP	223	#ifdef CONFIG_SMP
224	exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi);	224	exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi);
225	#endif	225	#endif
226	}	226	}
227		227
228	void trap_virtual_enable_irqs(uint16_t irqmask)	228	void trap_virtual_enable_irqs(uint16_t irqmask)
229	{	229	{
230	if (enable_irqs_function)	230	if (enable_irqs_function)
231	enable_irqs_function(irqmask);	231	enable_irqs_function(irqmask);
232	else	232	else
233	panic("No enable_irqs_function.");	233	panic("No enable_irqs_function.");
234	}	234	}
235		235
236	void trap_virtual_disable_irqs(uint16_t irqmask)	236	void trap_virtual_disable_irqs(uint16_t irqmask)
237	{	237	{
238	if (disable_irqs_function)	238	if (disable_irqs_function)
239	disable_irqs_function(irqmask);	239	disable_irqs_function(irqmask);
240	else	240	else
241	panic("No disable_irqs_function.");	241	panic("No disable_irqs_function.");
242	}	242	}
243		243
244	/** @}	244	/** @}
245	*/	245	*/
246		246

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia32/src/interrupt.c @ 2775 – Rev 3906 → 4016