Subversion Repositories HelenOS-historic

Rev

Rev 268 | Go to most recent revision | Details | 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>
33 
#include <arch/i8259.h>
34 
#include <func.h>
35 
#include <cpu.h>
36 
#include <arch/asm.h>
37 
#include <mm/tlb.h>
38 
#include <arch.h>
39 
 
40 
/*
41 
 * Interrupt and exception dispatching.
42 
 */
43 
 
44 
static iroutine ivt[IVT_ITEMS];
45 
 
46 
void (* disable_irqs_function)(__u16 irqmask) = NULL;
47 
void (* enable_irqs_function)(__u16 irqmask) = NULL;
48 
void (* eoi_function)(void) = NULL;
49 
 
50 
iroutine trap_register(__u8 n, iroutine f)
51 
{
52 
    ASSERT(n < IVT_ITEMS);
53 
 
54 
    iroutine old;
55 
 
56 
    old = ivt[n];
57 
    ivt[n] = f;
58 
 
59 
    return old;
60 
}
61 
 
62 
/*
63 
 * Called directly from the assembler code.
64 
 * CPU is cpu_priority_high().
65 
 */
66 
void trap_dispatcher(__u8 n, __native stack[])
67 
{
68 
    ASSERT(n < IVT_ITEMS);
69 
 
70 
    ivt[n](n, stack);
71 
}
72 
 
73 
void null_interrupt(__u8 n, __native stack[])
74 
{
75 
    printf("int %d: null_interrupt\n", n);
76 
    printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
77 
    panic("unserviced interrupt\n");
78 
}
79 
 
80 
void gp_fault(__u8 n, __native stack[])
81 
{
82 
    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
83 
    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
84 
    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
85 
    panic("general protection fault\n");
86 
}
87 
 
88 
void ss_fault(__u8 n, __native stack[])
89 
{
90 
    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
91 
    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
92 
    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
93 
    panic("stack fault\n");
94 
}
95 
 
96 
 
97 
void nm_fault(__u8 n, __native stack[])
98 
{
99 
    reset_TS_flag();
100 
    if ((CPU->fpu_owner)!=NULL) {  
101 
        fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context));
102 
        (CPU->fpu_owner)->fpu_context_engaged=0; /* don't prevent migration */
103 
    }
104 
    if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context));
105 
    else {fpu_init();THREAD->fpu_context_exists=1;}
106 
    CPU->fpu_owner=THREAD;
107 
}
108 
 
109 
 
110 
 
111 
void page_fault(__u8 n, __native stack[])
112 
{
113 
    printf("page fault address: %Q\n", read_cr2());
114 
    printf("ERROR_WORD=%Q, %%rip=%Q, %%rcs=%Q, flags=%Q\n", stack[0], stack[1], stack[2], stack[3]);
115 
    printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q, %%rdx=%Q,\n%%rsi=%Q, %%rdi=%Q\n",
116 
           stack[-1], stack[-2], stack[-3], stack[-4], stack[-5], stack[-6]);
117 
 
118 
    printf("stack: %X, %X, %X, %X\n", stack[5], stack[6], stack[7], stack[8]);
119 
    panic("page fault\n");
120 
}
121 
 
122 
void syscall(__u8 n, __native stack[])
123 
{
124 
    printf("cpu%d: syscall\n", CPU->id);
125 
    thread_usleep(1000);
126 
}
127 
 
128 
void tlb_shootdown_ipi(__u8 n, __native stack[])
129 
{
130 
    trap_virtual_eoi();
131 
    tlb_shootdown_ipi_recv();
132 
}
133 
 
134 
void wakeup_ipi(__u8 n, __native stack[])
135 
{
136 
    trap_virtual_eoi();
137 
}
138 
 
139 
void trap_virtual_enable_irqs(__u16 irqmask)
140 
{
141 
    if (enable_irqs_function)
142 
        enable_irqs_function(irqmask);
143 
    else
144 
        panic("no enable_irqs_function\n");
145 
}
146 
 
147 
void trap_virtual_disable_irqs(__u16 irqmask)
148 
{
149 
    if (disable_irqs_function)
150 
        disable_irqs_function(irqmask);
151 
    else
152 
        panic("no disable_irqs_function\n");
153 
}
154 
 
155 
void trap_virtual_eoi(void)
156 
{
157 
    if (eoi_function)
158 
        eoi_function();
159 
    else
160 
        panic("no eoi_function\n");
161 
 
162 
}