Subversion Repositories HelenOS-historic

Rev

Rev 1477 | Rev 1702 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
226 palkovsky 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>
30
#include <print.h>
31
#include <debug.h>
32
#include <panic.h>
1477 decky 33
#include <arch/drivers/i8259.h>
226 palkovsky 34
#include <func.h>
35
#include <cpu.h>
36
#include <arch/asm.h>
37
#include <mm/tlb.h>
703 jermar 38
#include <mm/as.h>
226 palkovsky 39
#include <arch.h>
268 palkovsky 40
#include <symtab.h>
282 palkovsky 41
#include <arch/asm.h>
309 palkovsky 42
#include <proc/scheduler.h>
391 jermar 43
#include <proc/thread.h>
1256 jermar 44
#include <proc/task.h>
45
#include <synch/spinlock.h>
46
#include <arch/ddi/ddi.h>
1258 palkovsky 47
#include <interrupt.h>
1281 palkovsky 48
#include <ipc/irq.h>
226 palkovsky 49
 
1051 jermar 50
void print_info_errcode(int n, istate_t *istate)
297 palkovsky 51
{
52
    char *symbol;
1060 palkovsky 53
/*  __u64 *x = &istate->stack[0]; */
297 palkovsky 54
 
1021 jermar 55
    if (!(symbol=get_symtab_entry(istate->rip)))
286 palkovsky 56
        symbol = "";
57
 
1021 jermar 58
    printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n, __FUNCTION__);
1196 cejka 59
    printf("%%rip: %#llX (%s)\n",istate->rip, symbol);
60
    printf("ERROR_WORD=%#llX\n", istate->error_word);
61
    printf("%%rcs=%#llX, flags=%#llX, %%cr0=%#llX\n", istate->cs, istate->rflags,read_cr0());
62
    printf("%%rax=%#llX, %%rcx=%#llX, %%rdx=%#llX\n",istate->rax,istate->rcx,istate->rdx);
63
    printf("%%rsi=%#llX, %%rdi=%#llX, %%r8 =%#llX\n",istate->rsi,istate->rdi,istate->r8);
64
    printf("%%r9 =%#llX, %%r10 =%#llX, %%r11=%#llX\n",istate->r9,istate->r10,istate->r11);
1100 palkovsky 65
#ifdef CONFIG_DEBUG_ALLREGS 
1196 cejka 66
    printf("%%r12=%#llX, %%r13=%#llX, %%r14=%#llX\n",istate->r12,istate->r13,istate->r14);
67
    printf("%%r15=%#llX, %%rbx=%#llX, %%rbp=%#llX\n",istate->r15,istate->rbx,&istate->rbp);
1100 palkovsky 68
#endif
1196 cejka 69
    printf("%%rsp=%#llX\n",&istate->stack[0]);
286 palkovsky 70
}
71
 
226 palkovsky 72
/*
73
 * Interrupt and exception dispatching.
74
 */
75
 
76
void (* disable_irqs_function)(__u16 irqmask) = NULL;
77
void (* enable_irqs_function)(__u16 irqmask) = NULL;
78
void (* eoi_function)(void) = NULL;
79
 
958 jermar 80
void null_interrupt(int n, istate_t *istate)
226 palkovsky 81
{
1595 palkovsky 82
    fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
1021 jermar 83
    print_info_errcode(n, istate);
226 palkovsky 84
    panic("unserviced interrupt\n");
85
}
86
 
1256 jermar 87
/** General Protection Fault. */
958 jermar 88
void gp_fault(int n, istate_t *istate)
226 palkovsky 89
{
1256 jermar 90
    if (TASK) {
91
        count_t ver;
92
 
93
        spinlock_lock(&TASK->lock);
94
        ver = TASK->arch.iomapver;
95
        spinlock_unlock(&TASK->lock);
96
 
97
        if (CPU->arch.iomapver_copy != ver) {
98
            /*
99
             * This fault can be caused by an early access
100
             * to I/O port because of an out-dated
101
             * I/O Permission bitmap installed on CPU.
102
             * Install the fresh copy and restart
103
             * the instruction.
104
             */
105
            io_perm_bitmap_install();
106
            return;
107
        }
1595 palkovsky 108
        fault_if_from_uspace(istate, "general protection fault");
1256 jermar 109
    }
110
 
958 jermar 111
    print_info_errcode(n, istate);
226 palkovsky 112
    panic("general protection fault\n");
113
}
114
 
958 jermar 115
void ss_fault(int n, istate_t *istate)
226 palkovsky 116
{
1595 palkovsky 117
    fault_if_from_uspace(istate, "stack fault");
958 jermar 118
    print_info_errcode(n, istate);
226 palkovsky 119
    panic("stack fault\n");
120
}
121
 
958 jermar 122
void nm_fault(int n, istate_t *istate)
226 palkovsky 123
{
458 decky 124
#ifdef CONFIG_FPU_LAZY     
309 palkovsky 125
    scheduler_fpu_lazy_request();
126
#else
1595 palkovsky 127
    fault_if_from_uspace(istate, "fpu fault");
309 palkovsky 128
    panic("fpu fault");
129
#endif
226 palkovsky 130
}
131
 
958 jermar 132
void tlb_shootdown_ipi(int n, istate_t *istate)
226 palkovsky 133
{
134
    trap_virtual_eoi();
135
    tlb_shootdown_ipi_recv();
136
}
137
 
138
void trap_virtual_enable_irqs(__u16 irqmask)
139
{
140
    if (enable_irqs_function)
141
        enable_irqs_function(irqmask);
142
    else
143
        panic("no enable_irqs_function\n");
144
}
145
 
146
void trap_virtual_disable_irqs(__u16 irqmask)
147
{
148
    if (disable_irqs_function)
149
        disable_irqs_function(irqmask);
150
    else
151
        panic("no disable_irqs_function\n");
152
}
153
 
154
void trap_virtual_eoi(void)
155
{
156
    if (eoi_function)
157
        eoi_function();
158
    else
159
        panic("no eoi_function\n");
160
 
161
}
1258 palkovsky 162
 
163
static void ipc_int(int n, istate_t *istate)
164
{
165
    trap_virtual_eoi();
166
    ipc_irq_send_notif(n-IVT_IRQBASE);
167
}
168
 
169
 
170
/* Reregister irq to be IPC-ready */
171
void irq_ipc_bind_arch(__native irq)
172
{
173
    if (irq == IRQ_CLK)
174
        return;
175
    exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
176
}