WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ia64/src/interrupt.c


/*
 * Copyright (C) 2005 Jakub Jermar
 * Copyright (C) 2005 Jakub Vana
 * 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 <panic.h>
#include <print.h>
#include <console/console.h>
#include <arch/types.h>
#include <arch/asm.h>
#include <arch/barrier.h>
#include <arch/register.h>
#include <arch/drivers/it.h>
#include <arch.h>
#include <symtab.h>
#include <debug.h>
#include <syscall/syscall.h>
#include <print.h>
#include <proc/scheduler.h>
#include <ipc/sysipc.h>
#include <ipc/irq.h>
#include <ipc/ipc.h>
#include <interrupt.h>
 
 
#define VECTORS_64_BUNDLE   20
#define VECTORS_16_BUNDLE   48
#define VECTORS_16_BUNDLE_START 0x5000
#define VECTOR_MAX      0x7f00
 
#define BUNDLE_SIZE     16
 
 
char *vector_names_64_bundle[VECTORS_64_BUNDLE] = {
    "VHPT Translation vector",
    "Instruction TLB vector",
    "Data TLB vector",
    "Alternate Instruction TLB vector",
    "Alternate Data TLB vector",
    "Data Nested TLB vector",
    "Instruction Key Miss vector",
    "Data Key Miss vector",
    "Dirty-Bit vector",
    "Instruction Access-Bit vector",
    "Data Access-Bit vector"
    "Break Instruction vector",
    "External Interrupt vector"
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved"
};
 
char *vector_names_16_bundle[VECTORS_16_BUNDLE] = {
    "Page Not Present vector",
    "Key Permission vector",
    "Instruction Access rights vector",
    "Data Access Rights vector",
    "General Exception vector",
    "Disabled FP-Register vector",
    "NaT Consumption vector",
    "Speculation vector",
    "Reserved",
    "Debug vector",
    "Unaligned Reference vector",
    "Unsupported Data Reference vector",
    "Floating-point Fault vector",
    "Floating-point Trap vector",
    "Lower-Privilege Transfer Trap vector",
    "Taken Branch Trap vector",
    "Single STep Trap vector",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "Reserved",
    "IA-32 Exception vector",
    "IA-32 Intercept vector",
    "IA-32 Interrupt vector",
    "Reserved",
    "Reserved",
    "Reserved"
};
 
static char *vector_to_string(__u16 vector);
static void dump_interrupted_context(istate_t *istate);
 
char *vector_to_string(__u16 vector)
{
    ASSERT(vector <= VECTOR_MAX);
   
    if (vector >= VECTORS_16_BUNDLE_START)
        return vector_names_16_bundle[(vector-VECTORS_16_BUNDLE_START)/(16*BUNDLE_SIZE)];
    else
        return vector_names_64_bundle[vector/(64*BUNDLE_SIZE)];
}
 
void dump_interrupted_context(istate_t *istate)
{
    char *ifa, *iipa, *iip;
 
    ifa = get_symtab_entry(istate->cr_ifa);
    iipa = get_symtab_entry(istate->cr_iipa);
    iip = get_symtab_entry(istate->cr_iip);
 
    putchar('\n');
    printf("Interrupted context dump:\n");
    printf("ar.bsp=%p\tar.bspstore=%p\n", istate->ar_bsp, istate->ar_bspstore);
    printf("ar.rnat=%#018llx\tar.rsc=%#018llx\n", istate->ar_rnat, istate->ar_rsc);
    printf("ar.ifs=%#018llx\tar.pfs=%#018llx\n", istate->ar_ifs, istate->ar_pfs);
    printf("cr.isr=%#018llx\tcr.ipsr=%#018llx\t\n", istate->cr_isr.value, istate->cr_ipsr);
   
    printf("cr.iip=%#018llx, #%d\t(%s)\n", istate->cr_iip, istate->cr_isr.ei, iip);
    printf("cr.iipa=%#018llx\t(%s)\n", istate->cr_iipa, iipa);
    printf("cr.ifa=%#018llx\t(%s)\n", istate->cr_ifa, ifa);
}
 
void general_exception(__u64 vector, istate_t *istate)
{
    char *desc = "";
 
 
 
    switch (istate->cr_isr.ge_code) {
        case GE_ILLEGALOP:
        desc = "Illegal Operation fault";
        break;
        case GE_PRIVOP:
        desc = "Privileged Operation fault";
        break;
        case GE_PRIVREG:
        desc = "Privileged Register fault";
        break;
        case GE_RESREGFLD:
        desc = "Reserved Register/Field fault";
        break;
        case GE_DISBLDISTRAN:
        desc = "Disabled Instruction Set Transition fault";
        break;
        case GE_ILLEGALDEP:
        desc = "Illegal Dependency fault";
        break;
        default:
            desc = "unknown";
        break;
    }
 
    fault_if_from_uspace(istate, "General Exception (%s)", desc);
 
    dump_interrupted_context(istate);
    panic("General Exception (%s)\n", desc);
}
 
void fpu_enable(void);
 
void disabled_fp_register(__u64 vector, istate_t *istate)
{
#ifdef CONFIG_FPU_LAZY 
    scheduler_fpu_lazy_request();  
#else
    fault_if_from_uspace(istate, "Interruption: %#hx (%s)", (__u16) vector, vector_to_string(vector));
    dump_interrupted_context(istate);
    panic("Interruption: %#hx (%s)\n", (__u16) vector, vector_to_string(vector));
#endif
}
 
 
void nop_handler(__u64 vector, istate_t *istate)
{
}
 
 
 
/** Handle syscall. */
int break_instruction(__u64 vector, istate_t *istate)
{
    /*
     * Move to next instruction after BREAK.
     */
    if (istate->cr_ipsr.ri == 2) {
        istate->cr_ipsr.ri = 0;
        istate->cr_iip += 16;
    } else {
        istate->cr_ipsr.ri++;
    }
 
    if (istate->in4 < SYSCALL_END)
        return syscall_table[istate->in4](istate->in0, istate->in1, istate->in2, istate->in3);
    else
        panic("Undefined syscall %d", istate->in4);
       
    return -1;
}
 
void universal_handler(__u64 vector, istate_t *istate)
{
    dump_interrupted_context(istate);
    panic("Interruption: %#hx (%s)\n", (__u16) vector, vector_to_string(vector));
}
 
void external_interrupt(__u64 vector, istate_t *istate)
{
    cr_ivr_t ivr;
   
    ivr.value = ivr_read();
    srlz_d();
 
    switch(ivr.vector) {
        case INTERRUPT_TIMER:
        it_interrupt();
            break;
        case INTERRUPT_SPURIOUS:
            printf("cpu%d: spurious interrupt\n", CPU->id);
        break;
        default:
        panic("\nUnhandled External Interrupt Vector %d\n", ivr.vector);
        break;
    }
}
 
void virtual_interrupt(__u64 irq,void *param)
{
    switch(irq) {
        case IRQ_KBD:
            if(kbd_uspace) ipc_irq_send_notif(irq);
            break;
        default:
            panic("\nUnhandled Virtual Interrupt request %d\n", irq);
        break;
    }
}
 
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(__native irq)
{
    if(irq==IRQ_KBD) {
        kbd_uspace=1;
        return;
    }
    panic("not implemented\n");
    /* TODO */
}
 
 
 
 

Rev 1507	Rev 1595
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* Copyright (C) 2005 Jakub Vana	3	* Copyright (C) 2005 Jakub Vana
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*	28	*
29	*/	29	*/
30		30
31	#include <arch/interrupt.h>	31	#include <arch/interrupt.h>
32	#include <panic.h>	32	#include <panic.h>
33	#include <print.h>	33	#include <print.h>
34	#include <console/console.h>	34	#include <console/console.h>
35	#include <arch/types.h>	35	#include <arch/types.h>
36	#include <arch/asm.h>	36	#include <arch/asm.h>
37	#include <arch/barrier.h>	37	#include <arch/barrier.h>
38	#include <arch/register.h>	38	#include <arch/register.h>
39	#include <arch/drivers/it.h>	39	#include <arch/drivers/it.h>
40	#include <arch.h>	40	#include <arch.h>
41	#include <symtab.h>	41	#include <symtab.h>
42	#include <debug.h>	42	#include <debug.h>
43	#include <syscall/syscall.h>	43	#include <syscall/syscall.h>
44	#include <print.h>	44	#include <print.h>
45	#include <proc/scheduler.h>	45	#include <proc/scheduler.h>
46	#include <ipc/sysipc.h>	46	#include <ipc/sysipc.h>
47	#include <ipc/irq.h>	47	#include <ipc/irq.h>
48	#include <ipc/ipc.h>	48	#include <ipc/ipc.h>
-		49	#include <interrupt.h>
49		50
50		51
51	#define VECTORS_64_BUNDLE 20	52	#define VECTORS_64_BUNDLE 20
52	#define VECTORS_16_BUNDLE 48	53	#define VECTORS_16_BUNDLE 48
53	#define VECTORS_16_BUNDLE_START 0x5000	54	#define VECTORS_16_BUNDLE_START 0x5000
54	#define VECTOR_MAX 0x7f00	55	#define VECTOR_MAX 0x7f00
55		56
56	#define BUNDLE_SIZE 16	57	#define BUNDLE_SIZE 16
57		58
58		59
59	char *vector_names_64_bundle[VECTORS_64_BUNDLE] = {	60	char *vector_names_64_bundle[VECTORS_64_BUNDLE] = {
60	"VHPT Translation vector",	61	"VHPT Translation vector",
61	"Instruction TLB vector",	62	"Instruction TLB vector",
62	"Data TLB vector",	63	"Data TLB vector",
63	"Alternate Instruction TLB vector",	64	"Alternate Instruction TLB vector",
64	"Alternate Data TLB vector",	65	"Alternate Data TLB vector",
65	"Data Nested TLB vector",	66	"Data Nested TLB vector",
66	"Instruction Key Miss vector",	67	"Instruction Key Miss vector",
67	"Data Key Miss vector",	68	"Data Key Miss vector",
68	"Dirty-Bit vector",	69	"Dirty-Bit vector",
69	"Instruction Access-Bit vector",	70	"Instruction Access-Bit vector",
70	"Data Access-Bit vector"	71	"Data Access-Bit vector"
71	"Break Instruction vector",	72	"Break Instruction vector",
72	"External Interrupt vector"	73	"External Interrupt vector"
73	"Reserved",	74	"Reserved",
74	"Reserved",	75	"Reserved",
75	"Reserved",	76	"Reserved",
76	"Reserved",	77	"Reserved",
77	"Reserved",	78	"Reserved",
78	"Reserved",	79	"Reserved",
79	"Reserved"	80	"Reserved"
80	};	81	};
81		82
82	char *vector_names_16_bundle[VECTORS_16_BUNDLE] = {	83	char *vector_names_16_bundle[VECTORS_16_BUNDLE] = {
83	"Page Not Present vector",	84	"Page Not Present vector",
84	"Key Permission vector",	85	"Key Permission vector",
85	"Instruction Access rights vector",	86	"Instruction Access rights vector",
86	"Data Access Rights vector",	87	"Data Access Rights vector",
87	"General Exception vector",	88	"General Exception vector",
88	"Disabled FP-Register vector",	89	"Disabled FP-Register vector",
89	"NaT Consumption vector",	90	"NaT Consumption vector",
90	"Speculation vector",	91	"Speculation vector",
91	"Reserved",	92	"Reserved",
92	"Debug vector",	93	"Debug vector",
93	"Unaligned Reference vector",	94	"Unaligned Reference vector",
94	"Unsupported Data Reference vector",	95	"Unsupported Data Reference vector",
95	"Floating-point Fault vector",	96	"Floating-point Fault vector",
96	"Floating-point Trap vector",	97	"Floating-point Trap vector",
97	"Lower-Privilege Transfer Trap vector",	98	"Lower-Privilege Transfer Trap vector",
98	"Taken Branch Trap vector",	99	"Taken Branch Trap vector",
99	"Single STep Trap vector",	100	"Single STep Trap vector",
100	"Reserved",	101	"Reserved",
101	"Reserved",	102	"Reserved",
102	"Reserved",	103	"Reserved",
103	"Reserved",	104	"Reserved",
104	"Reserved",	105	"Reserved",
105	"Reserved",	106	"Reserved",
106	"Reserved",	107	"Reserved",
107	"Reserved",	108	"Reserved",
108	"IA-32 Exception vector",	109	"IA-32 Exception vector",
109	"IA-32 Intercept vector",	110	"IA-32 Intercept vector",
110	"IA-32 Interrupt vector",	111	"IA-32 Interrupt vector",
111	"Reserved",	112	"Reserved",
112	"Reserved",	113	"Reserved",
113	"Reserved"	114	"Reserved"
114	};	115	};
115		116
116	static char *vector_to_string(__u16 vector);	117	static char *vector_to_string(__u16 vector);
117	static void dump_interrupted_context(istate_t *istate);	118	static void dump_interrupted_context(istate_t *istate);
118		119
119	char *vector_to_string(__u16 vector)	120	char *vector_to_string(__u16 vector)
120	{	121	{
121	ASSERT(vector <= VECTOR_MAX);	122	ASSERT(vector <= VECTOR_MAX);
122		123
123	if (vector >= VECTORS_16_BUNDLE_START)	124	if (vector >= VECTORS_16_BUNDLE_START)
124	return vector_names_16_bundle[(vector-VECTORS_16_BUNDLE_START)/(16*BUNDLE_SIZE)];	125	return vector_names_16_bundle[(vector-VECTORS_16_BUNDLE_START)/(16*BUNDLE_SIZE)];
125	else	126	else
126	return vector_names_64_bundle[vector/(64*BUNDLE_SIZE)];	127	return vector_names_64_bundle[vector/(64*BUNDLE_SIZE)];
127	}	128	}
128		129
129	void dump_interrupted_context(istate_t *istate)	130	void dump_interrupted_context(istate_t *istate)
130	{	131	{
131	char ifa, iipa, *iip;	132	char ifa, iipa, *iip;
132		133
133	ifa = get_symtab_entry(istate->cr_ifa);	134	ifa = get_symtab_entry(istate->cr_ifa);
134	iipa = get_symtab_entry(istate->cr_iipa);	135	iipa = get_symtab_entry(istate->cr_iipa);
135	iip = get_symtab_entry(istate->cr_iip);	136	iip = get_symtab_entry(istate->cr_iip);
136		137
137	putchar('\n');	138	putchar('\n');
138	printf("Interrupted context dump:\n");	139	printf("Interrupted context dump:\n");
139	printf("ar.bsp=%p\tar.bspstore=%p\n", istate->ar_bsp, istate->ar_bspstore);	140	printf("ar.bsp=%p\tar.bspstore=%p\n", istate->ar_bsp, istate->ar_bspstore);
140	printf("ar.rnat=%#018llx\tar.rsc=%#018llx\n", istate->ar_rnat, istate->ar_rsc);	141	printf("ar.rnat=%#018llx\tar.rsc=%#018llx\n", istate->ar_rnat, istate->ar_rsc);
141	printf("ar.ifs=%#018llx\tar.pfs=%#018llx\n", istate->ar_ifs, istate->ar_pfs);	142	printf("ar.ifs=%#018llx\tar.pfs=%#018llx\n", istate->ar_ifs, istate->ar_pfs);
142	printf("cr.isr=%#018llx\tcr.ipsr=%#018llx\t\n", istate->cr_isr.value, istate->cr_ipsr);	143	printf("cr.isr=%#018llx\tcr.ipsr=%#018llx\t\n", istate->cr_isr.value, istate->cr_ipsr);
143		144
144	printf("cr.iip=%#018llx, #%d\t(%s)\n", istate->cr_iip, istate->cr_isr.ei, iip);	145	printf("cr.iip=%#018llx, #%d\t(%s)\n", istate->cr_iip, istate->cr_isr.ei, iip);
145	printf("cr.iipa=%#018llx\t(%s)\n", istate->cr_iipa, iipa);	146	printf("cr.iipa=%#018llx\t(%s)\n", istate->cr_iipa, iipa);
146	printf("cr.ifa=%#018llx\t(%s)\n", istate->cr_ifa, ifa);	147	printf("cr.ifa=%#018llx\t(%s)\n", istate->cr_ifa, ifa);
147	}	148	}
148		149
149	void general_exception(__u64 vector, istate_t *istate)	150	void general_exception(__u64 vector, istate_t *istate)
150	{	151	{
151	char *desc = "";	152	char *desc = "";
152		153
153	dump_interrupted_context(istate);	-
154		-
155	switch (istate->cr_isr.ge_code) {	154	switch (istate->cr_isr.ge_code) {
156	case GE_ILLEGALOP:	155	case GE_ILLEGALOP:
157	desc = "Illegal Operation fault";	156	desc = "Illegal Operation fault";
158	break;	157	break;
159	case GE_PRIVOP:	158	case GE_PRIVOP:
160	desc = "Privileged Operation fault";	159	desc = "Privileged Operation fault";
161	break;	160	break;
162	case GE_PRIVREG:	161	case GE_PRIVREG:
163	desc = "Privileged Register fault";	162	desc = "Privileged Register fault";
164	break;	163	break;
165	case GE_RESREGFLD:	164	case GE_RESREGFLD:
166	desc = "Reserved Register/Field fault";	165	desc = "Reserved Register/Field fault";
167	break;	166	break;
168	case GE_DISBLDISTRAN:	167	case GE_DISBLDISTRAN:
169	desc = "Disabled Instruction Set Transition fault";	168	desc = "Disabled Instruction Set Transition fault";
170	break;	169	break;
171	case GE_ILLEGALDEP:	170	case GE_ILLEGALDEP:
172	desc = "Illegal Dependency fault";	171	desc = "Illegal Dependency fault";
173	break;	172	break;
174	default:	173	default:
175	desc = "unknown";	174	desc = "unknown";
176	break;	175	break;
177	}	176	}
178		177
-		178	fault_if_from_uspace(istate, "General Exception (%s)", desc);
-		179
-		180	dump_interrupted_context(istate);
179	panic("General Exception (%s)\n", desc);	181	panic("General Exception (%s)\n", desc);
180	}	182	}
181		183
182	void fpu_enable(void);	184	void fpu_enable(void);
183		185
184	void disabled_fp_register(__u64 vector, istate_t *istate)	186	void disabled_fp_register(__u64 vector, istate_t *istate)
185	{	187	{
186	#ifdef CONFIG_FPU_LAZY	188	#ifdef CONFIG_FPU_LAZY
187	scheduler_fpu_lazy_request();	189	scheduler_fpu_lazy_request();
188	#else	190	#else
-		191	fault_if_from_uspace(istate, "Interruption: %#hx (%s)", (__u16) vector, vector_to_string(vector));
189	dump_interrupted_context(istate);	192	dump_interrupted_context(istate);
190	panic("Interruption: %#hx (%s)\n", (__u16) vector, vector_to_string(vector));	193	panic("Interruption: %#hx (%s)\n", (__u16) vector, vector_to_string(vector));
191	#endif	194	#endif
192	}	195	}
193		196
194		197
195	void nop_handler(__u64 vector, istate_t *istate)	198	void nop_handler(__u64 vector, istate_t *istate)
196	{	199	{
197	}	200	}
198		201
199		202
200		203
201	/** Handle syscall. */	204	/** Handle syscall. */
202	int break_instruction(__u64 vector, istate_t *istate)	205	int break_instruction(__u64 vector, istate_t *istate)
203	{	206	{
204	/*	207	/*
205	* Move to next instruction after BREAK.	208	* Move to next instruction after BREAK.
206	*/	209	*/
207	if (istate->cr_ipsr.ri == 2) {	210	if (istate->cr_ipsr.ri == 2) {
208	istate->cr_ipsr.ri = 0;	211	istate->cr_ipsr.ri = 0;
209	istate->cr_iip += 16;	212	istate->cr_iip += 16;
210	} else {	213	} else {
211	istate->cr_ipsr.ri++;	214	istate->cr_ipsr.ri++;
212	}	215	}
213		216
214	if (istate->in4 < SYSCALL_END)	217	if (istate->in4 < SYSCALL_END)
215	return syscall_table[istate->in4](istate->in0, istate->in1, istate->in2, istate->in3);	218	return syscall_table[istate->in4](istate->in0, istate->in1, istate->in2, istate->in3);
216	else	219	else
217	panic("Undefined syscall %d", istate->in4);	220	panic("Undefined syscall %d", istate->in4);
218		221
219	return -1;	222	return -1;
220	}	223	}
221		224
222	void universal_handler(__u64 vector, istate_t *istate)	225	void universal_handler(__u64 vector, istate_t *istate)
223	{	226	{
224	dump_interrupted_context(istate);	227	dump_interrupted_context(istate);
225	panic("Interruption: %#hx (%s)\n", (__u16) vector, vector_to_string(vector));	228	panic("Interruption: %#hx (%s)\n", (__u16) vector, vector_to_string(vector));
226	}	229	}
227		230
228	void external_interrupt(__u64 vector, istate_t *istate)	231	void external_interrupt(__u64 vector, istate_t *istate)
229	{	232	{
230	cr_ivr_t ivr;	233	cr_ivr_t ivr;
231		234
232	ivr.value = ivr_read();	235	ivr.value = ivr_read();
233	srlz_d();	236	srlz_d();
234		237
235	switch(ivr.vector) {	238	switch(ivr.vector) {
236	case INTERRUPT_TIMER:	239	case INTERRUPT_TIMER:
237	it_interrupt();	240	it_interrupt();
238	break;	241	break;
239	case INTERRUPT_SPURIOUS:	242	case INTERRUPT_SPURIOUS:
240	printf("cpu%d: spurious interrupt\n", CPU->id);	243	printf("cpu%d: spurious interrupt\n", CPU->id);
241	break;	244	break;
242	default:	245	default:
243	panic("\nUnhandled External Interrupt Vector %d\n", ivr.vector);	246	panic("\nUnhandled External Interrupt Vector %d\n", ivr.vector);
244	break;	247	break;
245	}	248	}
246	}	249	}
247		250
248	void virtual_interrupt(__u64 irq,void *param)	251	void virtual_interrupt(__u64 irq,void *param)
249	{	252	{
250	switch(irq) {	253	switch(irq) {
251	case IRQ_KBD:	254	case IRQ_KBD:
252	if(kbd_uspace) ipc_irq_send_notif(irq);	255	if(kbd_uspace) ipc_irq_send_notif(irq);
253	break;	256	break;
254	default:	257	default:
255	panic("\nUnhandled Virtual Interrupt request %d\n", irq);	258	panic("\nUnhandled Virtual Interrupt request %d\n", irq);
256	break;	259	break;
257	}	260	}
258	}	261	}
259		262
260	/* Reregister irq to be IPC-ready */	263	/* Reregister irq to be IPC-ready */
261	void irq_ipc_bind_arch(__native irq)	264	void irq_ipc_bind_arch(__native irq)
262	{	265	{
263	if(irq==IRQ_KBD) {	266	if(irq==IRQ_KBD) {
264	kbd_uspace=1;	267	kbd_uspace=1;
265	return;	268	return;
266	}	269	}
267	panic("not implemented\n");	270	panic("not implemented\n");
268	/* TODO */	271	/* TODO */
269	}	272	}
270		-
271		-
272		-
273		273

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(root)/kernel/trunk/arch/ia64/src/interrupt.c – Rev 1507 → 1595