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431 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
3
 * Copyright (c) 2005 Jakub Vana
431 jermar 4
 * All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 *
10
 * - Redistributions of source code must retain the above copyright
11
 *   notice, this list of conditions and the following disclaimer.
12
 * - Redistributions in binary form must reproduce the above copyright
13
 *   notice, this list of conditions and the following disclaimer in the
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
16
 *   derived from this software without specific prior written permission.
17
 *
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
20
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
27
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1702 cejka 28
 */
29
 
1705 cejka 30
/** @addtogroup ia64interrupt
1702 cejka 31
 * @{
32
 */
33
/** @file
431 jermar 34
 */
35
 
36
#include <arch/interrupt.h>
1942 jermar 37
#include <interrupt.h>
38
#include <ddi/irq.h>
431 jermar 39
#include <panic.h>
433 jermar 40
#include <print.h>
1942 jermar 41
#include <debug.h>
583 jermar 42
#include <console/console.h>
431 jermar 43
#include <arch/types.h>
44
#include <arch/asm.h>
45
#include <arch/barrier.h>
432 jermar 46
#include <arch/register.h>
433 jermar 47
#include <arch.h>
921 jermar 48
#include <syscall/syscall.h>
49
#include <print.h>
1023 vana 50
#include <proc/scheduler.h>
1265 jermar 51
#include <ipc/sysipc.h>
1507 vana 52
#include <ipc/irq.h>
53
#include <ipc/ipc.h>
1942 jermar 54
#include <synch/spinlock.h>
3626 vana 55
#include <mm/tlb.h>
4132 svoboda 56
#include <symtab.h>
4220 decky 57
#include <putchar.h>
4132 svoboda 58
 
470 jermar 59
#define VECTORS_64_BUNDLE   20
60
#define VECTORS_16_BUNDLE   48
61
#define VECTORS_16_BUNDLE_START 0x5000
62
#define VECTOR_MAX      0x7f00
63
 
64
#define BUNDLE_SIZE     16
65
 
66
char *vector_names_64_bundle[VECTORS_64_BUNDLE] = {
67
    "VHPT Translation vector",
68
    "Instruction TLB vector",
69
    "Data TLB vector",
70
    "Alternate Instruction TLB vector",
71
    "Alternate Data TLB vector",
72
    "Data Nested TLB vector",
73
    "Instruction Key Miss vector",
74
    "Data Key Miss vector",
75
    "Dirty-Bit vector",
76
    "Instruction Access-Bit vector",
77
    "Data Access-Bit vector"
78
    "Break Instruction vector",
79
    "External Interrupt vector"
80
    "Reserved",
81
    "Reserved",
82
    "Reserved",
83
    "Reserved",
84
    "Reserved",
85
    "Reserved",
86
    "Reserved"
87
};
88
 
89
char *vector_names_16_bundle[VECTORS_16_BUNDLE] = {
90
    "Page Not Present vector",
91
    "Key Permission vector",
92
    "Instruction Access rights vector",
93
    "Data Access Rights vector",
94
    "General Exception vector",
95
    "Disabled FP-Register vector",
96
    "NaT Consumption vector",
97
    "Speculation vector",
98
    "Reserved",
99
    "Debug vector",
100
    "Unaligned Reference vector",
101
    "Unsupported Data Reference vector",
102
    "Floating-point Fault vector",
103
    "Floating-point Trap vector",
104
    "Lower-Privilege Transfer Trap vector",
105
    "Taken Branch Trap vector",
2060 jermar 106
    "Single Step Trap vector",
470 jermar 107
    "Reserved",
108
    "Reserved",
109
    "Reserved",
110
    "Reserved",
111
    "Reserved",
112
    "Reserved",
113
    "Reserved",
114
    "Reserved",
115
    "IA-32 Exception vector",
116
    "IA-32 Intercept vector",
117
    "IA-32 Interrupt vector",
118
    "Reserved",
119
    "Reserved",
120
    "Reserved"
121
};
122
 
1780 jermar 123
static char *vector_to_string(uint16_t vector);
958 jermar 124
static void dump_interrupted_context(istate_t *istate);
470 jermar 125
 
1780 jermar 126
char *vector_to_string(uint16_t vector)
431 jermar 127
{
470 jermar 128
    ASSERT(vector <= VECTOR_MAX);
129
 
130
    if (vector >= VECTORS_16_BUNDLE_START)
2608 jermar 131
        return vector_names_16_bundle[(vector -
132
            VECTORS_16_BUNDLE_START) / (16 * BUNDLE_SIZE)];
470 jermar 133
    else
2608 jermar 134
        return vector_names_64_bundle[vector / (64 * BUNDLE_SIZE)];
470 jermar 135
}
136
 
958 jermar 137
void dump_interrupted_context(istate_t *istate)
470 jermar 138
{
139
    char *ifa, *iipa, *iip;
140
 
4137 svoboda 141
    ifa = symtab_fmt_name_lookup(istate->cr_ifa);
142
    iipa = symtab_fmt_name_lookup(istate->cr_iipa);
143
    iip = symtab_fmt_name_lookup(istate->cr_iip);
470 jermar 144
 
145
    putchar('\n');
472 jermar 146
    printf("Interrupted context dump:\n");
2608 jermar 147
    printf("ar.bsp=%p\tar.bspstore=%p\n", istate->ar_bsp,
148
        istate->ar_bspstore);
149
    printf("ar.rnat=%#018llx\tar.rsc=%#018llx\n", istate->ar_rnat,
150
        istate->ar_rsc);
151
    printf("ar.ifs=%#018llx\tar.pfs=%#018llx\n", istate->ar_ifs,
152
        istate->ar_pfs);
153
    printf("cr.isr=%#018llx\tcr.ipsr=%#018llx\t\n", istate->cr_isr.value,
154
        istate->cr_ipsr);
470 jermar 155
 
2608 jermar 156
    printf("cr.iip=%#018llx, #%d\t(%s)\n", istate->cr_iip,
157
        istate->cr_isr.ei, iip);
1507 vana 158
    printf("cr.iipa=%#018llx\t(%s)\n", istate->cr_iipa, iipa);
159
    printf("cr.ifa=%#018llx\t(%s)\n", istate->cr_ifa, ifa);
470 jermar 160
}
161
 
1780 jermar 162
void general_exception(uint64_t vector, istate_t *istate)
470 jermar 163
{
472 jermar 164
    char *desc = "";
165
 
958 jermar 166
    switch (istate->cr_isr.ge_code) {
1882 jermar 167
    case GE_ILLEGALOP:
472 jermar 168
        desc = "Illegal Operation fault";
169
        break;
1882 jermar 170
    case GE_PRIVOP:
472 jermar 171
        desc = "Privileged Operation fault";
172
        break;
1882 jermar 173
    case GE_PRIVREG:
472 jermar 174
        desc = "Privileged Register fault";
175
        break;
1882 jermar 176
    case GE_RESREGFLD:
472 jermar 177
        desc = "Reserved Register/Field fault";
178
        break;
1882 jermar 179
    case GE_DISBLDISTRAN:
472 jermar 180
        desc = "Disabled Instruction Set Transition fault";
181
        break;
1882 jermar 182
    case GE_ILLEGALDEP:
472 jermar 183
        desc = "Illegal Dependency fault";
184
        break;
1882 jermar 185
    default:
186
        desc = "unknown";
472 jermar 187
        break;
188
    }
189
 
3790 svoboda 190
    fault_if_from_uspace(istate, "General Exception (%s).", desc);
1595 palkovsky 191
 
192
    dump_interrupted_context(istate);
3790 svoboda 193
    panic("General Exception (%s).", desc);
470 jermar 194
}
195
 
1780 jermar 196
void disabled_fp_register(uint64_t vector, istate_t *istate)
1023 vana 197
{
3880 decky 198
#ifdef CONFIG_FPU_LAZY
199
    scheduler_fpu_lazy_request();
1053 vana 200
#else
3790 svoboda 201
    fault_if_from_uspace(istate, "Interruption: %#hx (%s).",
2608 jermar 202
        (uint16_t) vector, vector_to_string(vector));
1053 vana 203
    dump_interrupted_context(istate);
3790 svoboda 204
    panic("Interruption: %#hx (%s).", (uint16_t) vector,
2608 jermar 205
        vector_to_string(vector));
1023 vana 206
#endif
207
}
208
 
1780 jermar 209
void nop_handler(uint64_t vector, istate_t *istate)
1023 vana 210
{
211
}
212
 
921 jermar 213
/** Handle syscall. */
1780 jermar 214
int break_instruction(uint64_t vector, istate_t *istate)
470 jermar 215
{
921 jermar 216
    /*
217
     * Move to next instruction after BREAK.
218
     */
958 jermar 219
    if (istate->cr_ipsr.ri == 2) {
220
        istate->cr_ipsr.ri = 0;
221
        istate->cr_iip += 16;
921 jermar 222
    } else {
958 jermar 223
        istate->cr_ipsr.ri++;
921 jermar 224
    }
225
 
2608 jermar 226
    return syscall_handler(istate->in0, istate->in1, istate->in2,
227
        istate->in3, istate->in4, istate->in5, istate->in6);
470 jermar 228
}
229
 
1780 jermar 230
void universal_handler(uint64_t vector, istate_t *istate)
470 jermar 231
{
3790 svoboda 232
    fault_if_from_uspace(istate, "Interruption: %#hx (%s).",
2608 jermar 233
        (uint16_t) vector, vector_to_string(vector));
958 jermar 234
    dump_interrupted_context(istate);
3790 svoboda 235
    panic("Interruption: %#hx (%s).", (uint16_t) vector,
2608 jermar 236
        vector_to_string(vector));
470 jermar 237
}
238
 
3657 vana 239
static void end_of_local_irq(void)
3626 vana 240
{
241
    asm volatile ("mov cr.eoi=r0;;");
242
}
243
 
244
 
1780 jermar 245
void external_interrupt(uint64_t vector, istate_t *istate)
470 jermar 246
{
433 jermar 247
    cr_ivr_t ivr;
3766 jermar 248
    irq_t *irq;
431 jermar 249
 
433 jermar 250
    ivr.value = ivr_read();
431 jermar 251
    srlz_d();
444 vana 252
 
3766 jermar 253
    switch (ivr.vector) {
254
    case INTERRUPT_SPURIOUS:
1942 jermar 255
#ifdef CONFIG_DEBUG
3766 jermar 256
        printf("cpu%d: spurious interrupt\n", CPU->id);
1942 jermar 257
#endif
3766 jermar 258
        break;
1265 jermar 259
 
3626 vana 260
#ifdef CONFIG_SMP
3766 jermar 261
    case VECTOR_TLB_SHOOTDOWN_IPI:
262
        tlb_shootdown_ipi_recv();
263
        end_of_local_irq();
264
        break;
3626 vana 265
#endif
266
 
3766 jermar 267
    case INTERRUPT_TIMER:
268
        irq = irq_dispatch_and_lock(ivr.vector);
269
        if (irq) {
3906 jermar 270
            irq->handler(irq);
3766 jermar 271
            spinlock_unlock(&irq->lock);
272
        } else {
3790 svoboda 273
            panic("Unhandled Internal Timer Interrupt (%d).",
3766 jermar 274
                ivr.vector);
275
        }
276
        break;
277
    default:
278
        irq = irq_dispatch_and_lock(ivr.vector);
279
        if (irq) {
280
            /*
281
             * The IRQ handler was found.
282
             */
283
            if (irq->preack) {
284
                /* Send EOI before processing the interrupt */
285
                end_of_local_irq();
286
            }
3906 jermar 287
            irq->handler(irq);
3766 jermar 288
            if (!irq->preack)
289
                end_of_local_irq();
290
            spinlock_unlock(&irq->lock);
291
        } else {
292
            /*
293
             * Unhandled interrupt.
294
             */
295
            end_of_local_irq();
3657 vana 296
#ifdef CONFIG_DEBUG
3766 jermar 297
            printf("\nUnhandled External Interrupt Vector %d\n",
298
                ivr.vector);
3657 vana 299
#endif
1942 jermar 300
        }
3766 jermar 301
        break;
302
    }
1507 vana 303
}
304
 
3880 decky 305
void trap_virtual_enable_irqs(uint16_t irqmask)
306
{
307
}
308
 
1703 jermar 309
/** @}
1702 cejka 310
 */