Subversion Repositories HelenOS

Rev

Rev 1411 | Rev 1595 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2
 * Copyright (C) 2001-2004 Jakub Jermar
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
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
15
 *   derived from this software without specific prior written permission.
16
 *
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
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
#include <arch/interrupt.h>
712 decky 30
#include <syscall/syscall.h>
1 jermar 31
#include <print.h>
68 decky 32
#include <debug.h>
1 jermar 33
#include <panic.h>
1477 decky 34
#include <arch/drivers/i8259.h>
1 jermar 35
#include <func.h>
36
#include <cpu.h>
37
#include <arch/asm.h>
5 jermar 38
#include <mm/tlb.h>
703 jermar 39
#include <mm/as.h>
22 jermar 40
#include <arch.h>
268 palkovsky 41
#include <symtab.h>
391 jermar 42
#include <proc/thread.h>
1256 jermar 43
#include <proc/task.h>
44
#include <synch/spinlock.h>
45
#include <arch/ddi/ddi.h>
1258 palkovsky 46
#include <ipc/sysipc.h>
47
#include <interrupt.h>
1 jermar 48
 
49
/*
50
 * Interrupt and exception dispatching.
51
 */
52
 
53
void (* disable_irqs_function)(__u16 irqmask) = NULL;
54
void (* enable_irqs_function)(__u16 irqmask) = NULL;
55
void (* eoi_function)(void) = NULL;
56
 
1411 jermar 57
void PRINT_INFO_ERRCODE(istate_t *istate)
1008 jermar 58
{
59
    char *symbol = get_symtab_entry(istate->eip);
268 palkovsky 60
 
1008 jermar 61
    if (!symbol)
62
        symbol = "";
63
 
64
    if (CPU)
65
        printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
66
    else
67
        printf("----------------EXCEPTION OCCURED----------------\n");
68
 
1221 decky 69
    printf("%%eip: %#x (%s)\n",istate->eip,symbol);
70
    printf("ERROR_WORD=%#x\n", istate->error_word);
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]);
1100 palkovsky 73
#ifdef CONFIG_DEBUG_ALLREGS
1221 decky 74
    printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n",  istate->esi,istate->edi,istate->ebp,istate->ebx);
1100 palkovsky 75
#endif
1221 decky 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]);
1008 jermar 78
}
79
 
958 jermar 80
void null_interrupt(int n, istate_t *istate)
1 jermar 81
{
958 jermar 82
    PRINT_INFO_ERRCODE(istate);
83
    panic("unserviced interrupt: %d\n", n);
1 jermar 84
}
85
 
1256 jermar 86
/** General Protection Fault. */
958 jermar 87
void gp_fault(int n, istate_t *istate)
1 jermar 88
{
1256 jermar 89
    if (TASK) {
90
        count_t ver;
91
 
92
        spinlock_lock(&TASK->lock);
93
        ver = TASK->arch.iomapver;
94
        spinlock_unlock(&TASK->lock);
95
 
96
        if (CPU->arch.iomapver_copy != ver) {
97
            /*
98
             * This fault can be caused by an early access
99
             * to I/O port because of an out-dated
100
             * I/O Permission bitmap installed on CPU.
101
             * Install the fresh copy and restart
102
             * the instruction.
103
             */
104
            io_perm_bitmap_install();
105
            return;
106
        }
107
    }
108
 
958 jermar 109
    PRINT_INFO_ERRCODE(istate);
168 jermar 110
    panic("general protection fault\n");
1 jermar 111
}
112
 
958 jermar 113
void ss_fault(int n, istate_t *istate)
84 vana 114
{
958 jermar 115
    PRINT_INFO_ERRCODE(istate);
103 jermar 116
    panic("stack fault\n");
84 vana 117
}
118
 
1019 vana 119
void simd_fp_exception(int n, istate_t *istate)
120
{
121
 
122
    PRINT_INFO_ERRCODE(istate);
123
    __u32 mxcsr;
124
    asm
125
    (
126
        "stmxcsr %0;\n"
127
        :"=m"(mxcsr)
128
    );
1196 cejka 129
    printf("MXCSR: %#zX\n",(__native)(mxcsr));
1019 vana 130
    panic("SIMD FP exception(19)\n");
131
}
132
 
958 jermar 133
void nm_fault(int n, istate_t *istate)
73 vana 134
{
458 decky 135
#ifdef CONFIG_FPU_LAZY     
309 palkovsky 136
    scheduler_fpu_lazy_request();
137
#else
138
    panic("fpu fault");
139
#endif
73 vana 140
}
141
 
958 jermar 142
void syscall(int n, istate_t *istate)
1 jermar 143
{
1100 palkovsky 144
    panic("Obsolete syscall handler.");
1 jermar 145
}
146
 
958 jermar 147
void tlb_shootdown_ipi(int n, istate_t *istate)
5 jermar 148
{
149
    trap_virtual_eoi();
6 jermar 150
    tlb_shootdown_ipi_recv();
5 jermar 151
}
152
 
1 jermar 153
void trap_virtual_enable_irqs(__u16 irqmask)
154
{
155
    if (enable_irqs_function)
156
        enable_irqs_function(irqmask);
157
    else
68 decky 158
        panic("no enable_irqs_function\n");
1 jermar 159
}
160
 
161
void trap_virtual_disable_irqs(__u16 irqmask)
162
{
163
    if (disable_irqs_function)
164
        disable_irqs_function(irqmask);
165
    else
68 decky 166
        panic("no disable_irqs_function\n");
1 jermar 167
}
168
 
169
void trap_virtual_eoi(void)
170
{
171
    if (eoi_function)
172
        eoi_function();
173
    else
68 decky 174
        panic("no eoi_function\n");
1 jermar 175
 
176
}
1258 palkovsky 177
 
178
static void ipc_int(int n, istate_t *istate)
179
{
180
    trap_virtual_eoi();
181
    ipc_irq_send_notif(n-IVT_IRQBASE);
182
}
183
 
184
 
185
/* Reregister irq to be IPC-ready */
186
void irq_ipc_bind_arch(__native irq)
187
{
188
    if (irq == IRQ_CLK)
189
        return;
190
    exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
191
}