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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #include <arch/interrupt.h> |
29 | #include <arch/interrupt.h> |
| 30 | #include <print.h> |
30 | #include <print.h> |
| 31 | #include <debug.h> |
31 | #include <debug.h> |
| 32 | #include <panic.h> |
32 | #include <panic.h> |
| 33 | #include <arch/i8259.h> |
33 | #include <arch/i8259.h> |
| 34 | #include <func.h> |
34 | #include <func.h> |
| 35 | #include <cpu.h> |
35 | #include <cpu.h> |
| 36 | #include <arch/asm.h> |
36 | #include <arch/asm.h> |
| 37 | #include <mm/tlb.h> |
37 | #include <mm/tlb.h> |
| 38 | #include <arch.h> |
38 | #include <arch.h> |
| 39 | #include <symtab.h> |
39 | #include <symtab.h> |
| 40 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
| 41 | 41 | ||
| 42 | /* |
42 | /* |
| 43 | * Interrupt and exception dispatching. |
43 | * Interrupt and exception dispatching. |
| 44 | */ |
44 | */ |
| 45 | 45 | ||
| 46 | static iroutine ivt[IVT_ITEMS]; |
- | |
| 47 | - | ||
| 48 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
46 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
| 49 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
47 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
| 50 | void (* eoi_function)(void) = NULL; |
48 | void (* eoi_function)(void) = NULL; |
| 51 | 49 | ||
| 52 | #define PRINT_INFO_ERRCODE(x) { \ |
50 | #define PRINT_INFO_ERRCODE(st) { \ |
| - | 51 | __native *x = (__native *) st; \ |
|
| 53 | char *symbol = get_symtab_entry(stack[1]); \ |
52 | char *symbol = get_symtab_entry(x[1]); \ |
| 54 | if (!symbol) \ |
53 | if (!symbol) \ |
| 55 | symbol = ""; \ |
54 | symbol = ""; \ |
| 56 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
55 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
| 57 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
56 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
| 58 | printf("ERROR_WORD=%X\n", x[0]); \ |
57 | printf("ERROR_WORD=%X\n", x[0]); \ |
| 59 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
58 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
| 60 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
59 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
| 61 | x[-2],x[-5],x[-3],x[-4]); \ |
60 | x[-2],x[-5],x[-3],x[-4]); \ |
| 62 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
61 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
| 63 | x[-8],x[-9],x[-1],x); \ |
62 | x[-8],x[-9],x[-1],x); \ |
| 64 | printf("stack: %X, %X, %X, %X\n", x[4], x[5], x[6], x[7]); \ |
63 | printf("stack: %X, %X, %X, %X\n", x[4], x[5], x[6], x[7]); \ |
| 65 | printf(" %X, %X, %X, %X\n", x[8], x[9], x[10], x[11]); \ |
64 | printf(" %X, %X, %X, %X\n", x[8], x[9], x[10], x[11]); \ |
| 66 | } |
65 | } |
| 67 | 66 | ||
| 68 | iroutine trap_register(__u8 n, iroutine f) |
67 | void null_interrupt(int n, void *st) |
| 69 | { |
68 | { |
| 70 | ASSERT(n < IVT_ITEMS); |
- | |
| 71 | - | ||
| 72 | iroutine old; |
- | |
| 73 | - | ||
| 74 | old = ivt[n]; |
- | |
| 75 | ivt[n] = f; |
- | |
| 76 | - | ||
| 77 | return old; |
- | |
| 78 | } |
- | |
| 79 | - | ||
| 80 | /* |
- | |
| 81 | * Called directly from the assembler code. |
- | |
| 82 | * CPU is interrupts_disable()'d. |
- | |
| 83 | */ |
- | |
| 84 | void trap_dispatcher(__u8 n, __native stack[]) |
69 | __native *stack = (__native *) st; |
| 85 | { |
- | |
| 86 | ASSERT(n < IVT_ITEMS); |
- | |
| 87 | - | ||
| 88 | ivt[n](n, stack); |
- | |
| 89 | } |
- | |
| 90 | 70 | ||
| 91 | void null_interrupt(__u8 n, __native stack[]) |
- | |
| 92 | { |
- | |
| 93 | printf("int %d: null_interrupt\n", n); |
71 | printf("int %d: null_interrupt\n", n); |
| 94 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
72 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
| 95 | panic("unserviced interrupt\n"); |
73 | panic("unserviced interrupt\n"); |
| 96 | } |
74 | } |
| 97 | 75 | ||
| 98 | void gp_fault(__u8 n, __native stack[]) |
76 | void gp_fault(int n, void *stack) |
| 99 | { |
77 | { |
| 100 | PRINT_INFO_ERRCODE(stack); |
78 | PRINT_INFO_ERRCODE(stack); |
| 101 | panic("general protection fault\n"); |
79 | panic("general protection fault\n"); |
| 102 | } |
80 | } |
| 103 | 81 | ||
| 104 | void ss_fault(__u8 n, __native stack[]) |
82 | void ss_fault(int n, void *stack) |
| 105 | { |
83 | { |
| 106 | PRINT_INFO_ERRCODE(stack); |
84 | PRINT_INFO_ERRCODE(stack); |
| 107 | panic("stack fault\n"); |
85 | panic("stack fault\n"); |
| 108 | } |
86 | } |
| 109 | 87 | ||
| 110 | 88 | ||
| 111 | void nm_fault(__u8 n, __native stack[]) |
89 | void nm_fault(int n, void *stack) |
| 112 | { |
90 | { |
| 113 | #ifdef CONFIG_FPU_LAZY |
91 | #ifdef CONFIG_FPU_LAZY |
| 114 | scheduler_fpu_lazy_request(); |
92 | scheduler_fpu_lazy_request(); |
| 115 | #else |
93 | #else |
| 116 | panic("fpu fault"); |
94 | panic("fpu fault"); |
| 117 | #endif |
95 | #endif |
| 118 | } |
96 | } |
| 119 | 97 | ||
| 120 | 98 | ||
| 121 | 99 | ||
| 122 | void page_fault(__u8 n, __native stack[]) |
100 | void page_fault(int n, void *stack) |
| 123 | { |
101 | { |
| 124 | PRINT_INFO_ERRCODE(stack); |
102 | PRINT_INFO_ERRCODE(stack); |
| 125 | printf("page fault address: %X\n", read_cr2()); |
103 | printf("page fault address: %X\n", read_cr2()); |
| 126 | panic("page fault\n"); |
104 | panic("page fault\n"); |
| 127 | } |
105 | } |
| 128 | 106 | ||
| 129 | void syscall(__u8 n, __native stack[]) |
107 | void syscall(int n, void *stack) |
| 130 | { |
108 | { |
| 131 | printf("cpu%d: syscall\n", CPU->id); |
109 | printf("cpu%d: syscall\n", CPU->id); |
| 132 | thread_usleep(1000); |
110 | thread_usleep(1000); |
| 133 | } |
111 | } |
| 134 | 112 | ||
| 135 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
113 | void tlb_shootdown_ipi(int n, void *stack) |
| 136 | { |
114 | { |
| 137 | trap_virtual_eoi(); |
115 | trap_virtual_eoi(); |
| 138 | tlb_shootdown_ipi_recv(); |
116 | tlb_shootdown_ipi_recv(); |
| 139 | } |
117 | } |
| 140 | 118 | ||
| 141 | void wakeup_ipi(__u8 n, __native stack[]) |
119 | void wakeup_ipi(int n, void *stack) |
| 142 | { |
120 | { |
| 143 | trap_virtual_eoi(); |
121 | trap_virtual_eoi(); |
| 144 | } |
122 | } |
| 145 | 123 | ||
| 146 | void trap_virtual_enable_irqs(__u16 irqmask) |
124 | void trap_virtual_enable_irqs(__u16 irqmask) |
| 147 | { |
125 | { |
| 148 | if (enable_irqs_function) |
126 | if (enable_irqs_function) |
| 149 | enable_irqs_function(irqmask); |
127 | enable_irqs_function(irqmask); |
| 150 | else |
128 | else |
| 151 | panic("no enable_irqs_function\n"); |
129 | panic("no enable_irqs_function\n"); |
| 152 | } |
130 | } |
| 153 | 131 | ||
| 154 | void trap_virtual_disable_irqs(__u16 irqmask) |
132 | void trap_virtual_disable_irqs(__u16 irqmask) |
| 155 | { |
133 | { |
| 156 | if (disable_irqs_function) |
134 | if (disable_irqs_function) |
| 157 | disable_irqs_function(irqmask); |
135 | disable_irqs_function(irqmask); |
| 158 | else |
136 | else |
| 159 | panic("no disable_irqs_function\n"); |
137 | panic("no disable_irqs_function\n"); |
| 160 | } |
138 | } |
| 161 | 139 | ||
| 162 | void trap_virtual_eoi(void) |
140 | void trap_virtual_eoi(void) |
| 163 | { |
141 | { |
| 164 | if (eoi_function) |
142 | if (eoi_function) |
| 165 | eoi_function(); |
143 | eoi_function(); |
| 166 | else |
144 | else |
| 167 | panic("no eoi_function\n"); |
145 | panic("no eoi_function\n"); |
| 168 | 146 | ||
| 169 | } |
147 | } |
| 170 | 148 | ||