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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]; |
46 | static iroutine ivt[IVT_ITEMS]; |
47 | 47 | ||
48 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
48 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
49 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
49 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
50 | void (* eoi_function)(void) = NULL; |
50 | void (* eoi_function)(void) = NULL; |
51 | 51 | ||
52 | #define PRINT_INFO_ERRCODE(x) { \ |
52 | #define PRINT_INFO_ERRCODE(x) { \ |
53 | char *symbol = get_symtab_entry(stack[1]); \ |
53 | char *symbol = get_symtab_entry(stack[1]); \ |
54 | if (!symbol) \ |
54 | if (!symbol) \ |
55 | symbol = ""; \ |
55 | symbol = ""; \ |
56 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
56 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
57 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
57 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
58 | printf("ERROR_WORD=%X\n", x[0]); \ |
58 | printf("ERROR_WORD=%X\n", x[0]); \ |
59 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
59 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
60 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
60 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
61 | x[-2],x[-5],x[-3],x[-4]); \ |
61 | x[-2],x[-5],x[-3],x[-4]); \ |
62 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
62 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
63 | x[-8],x[-9],x[-1],x); \ |
63 | x[-8],x[-9],x[-1],x); \ |
64 | printf("stack: %X, %X, %X, %X\n", x[4], x[5], x[6], x[7]); \ |
64 | 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]); \ |
65 | printf(" %X, %X, %X, %X\n", x[8], x[9], x[10], x[11]); \ |
66 | } |
66 | } |
67 | 67 | ||
68 | iroutine trap_register(__u8 n, iroutine f) |
68 | iroutine trap_register(__u8 n, iroutine f) |
69 | { |
69 | { |
70 | ASSERT(n < IVT_ITEMS); |
70 | ASSERT(n < IVT_ITEMS); |
71 | 71 | ||
72 | iroutine old; |
72 | iroutine old; |
73 | 73 | ||
74 | old = ivt[n]; |
74 | old = ivt[n]; |
75 | ivt[n] = f; |
75 | ivt[n] = f; |
76 | 76 | ||
77 | return old; |
77 | return old; |
78 | } |
78 | } |
79 | 79 | ||
80 | /* |
80 | /* |
81 | * Called directly from the assembler code. |
81 | * Called directly from the assembler code. |
82 | * CPU is interrupts_disable()'d. |
82 | * CPU is interrupts_disable()'d. |
83 | */ |
83 | */ |
84 | void trap_dispatcher(__u8 n, __native stack[]) |
84 | void trap_dispatcher(__u8 n, __native stack[]) |
85 | { |
85 | { |
86 | ASSERT(n < IVT_ITEMS); |
86 | ASSERT(n < IVT_ITEMS); |
87 | 87 | ||
88 | ivt[n](n, stack); |
88 | ivt[n](n, stack); |
89 | } |
89 | } |
90 | 90 | ||
91 | void null_interrupt(__u8 n, __native stack[]) |
91 | void null_interrupt(__u8 n, __native stack[]) |
92 | { |
92 | { |
93 | printf("int %d: null_interrupt\n", n); |
93 | printf("int %d: null_interrupt\n", n); |
94 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
94 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
95 | panic("unserviced interrupt\n"); |
95 | panic("unserviced interrupt\n"); |
96 | } |
96 | } |
97 | 97 | ||
98 | void gp_fault(__u8 n, __native stack[]) |
98 | void gp_fault(__u8 n, __native stack[]) |
99 | { |
99 | { |
100 | PRINT_INFO_ERRCODE(stack); |
100 | PRINT_INFO_ERRCODE(stack); |
101 | panic("general protection fault\n"); |
101 | panic("general protection fault\n"); |
102 | } |
102 | } |
103 | 103 | ||
104 | void ss_fault(__u8 n, __native stack[]) |
104 | void ss_fault(__u8 n, __native stack[]) |
105 | { |
105 | { |
106 | PRINT_INFO_ERRCODE(stack); |
106 | PRINT_INFO_ERRCODE(stack); |
107 | panic("stack fault\n"); |
107 | panic("stack fault\n"); |
108 | } |
108 | } |
109 | 109 | ||
110 | 110 | ||
111 | void nm_fault(__u8 n, __native stack[]) |
111 | void nm_fault(__u8 n, __native stack[]) |
112 | { |
112 | { |
113 | #ifdef CONFIG_FPU_LAZY |
113 | #ifdef CONFIG_FPU_LAZY |
114 | scheduler_fpu_lazy_request(); |
114 | scheduler_fpu_lazy_request(); |
115 | #else |
115 | #else |
116 | panic("fpu fault"); |
116 | panic("fpu fault"); |
117 | #endif |
117 | #endif |
118 | } |
118 | } |
119 | 119 | ||
120 | 120 | ||
121 | 121 | ||
122 | void page_fault(__u8 n, __native stack[]) |
122 | void page_fault(__u8 n, __native stack[]) |
123 | { |
123 | { |
124 | PRINT_INFO_ERRCODE(stack); |
124 | PRINT_INFO_ERRCODE(stack); |
125 | printf("page fault address: %X\n", read_cr2()); |
125 | printf("page fault address: %X\n", read_cr2()); |
126 | panic("page fault\n"); |
126 | panic("page fault\n"); |
127 | } |
127 | } |
128 | 128 | ||
129 | void syscall(__u8 n, __native stack[]) |
129 | void syscall(__u8 n, __native stack[]) |
130 | { |
130 | { |
131 | printf("cpu%d: syscall\n", CPU->id); |
131 | printf("cpu%d: syscall\n", CPU->id); |
132 | thread_usleep(1000); |
132 | thread_usleep(1000); |
133 | } |
133 | } |
134 | 134 | ||
135 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
135 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
136 | { |
136 | { |
137 | trap_virtual_eoi(); |
137 | trap_virtual_eoi(); |
138 | tlb_shootdown_ipi_recv(); |
138 | tlb_shootdown_ipi_recv(); |
139 | } |
139 | } |
140 | 140 | ||
141 | void wakeup_ipi(__u8 n, __native stack[]) |
141 | void wakeup_ipi(__u8 n, __native stack[]) |
142 | { |
142 | { |
143 | trap_virtual_eoi(); |
143 | trap_virtual_eoi(); |
144 | } |
144 | } |
145 | 145 | ||
146 | void trap_virtual_enable_irqs(__u16 irqmask) |
146 | void trap_virtual_enable_irqs(__u16 irqmask) |
147 | { |
147 | { |
148 | if (enable_irqs_function) |
148 | if (enable_irqs_function) |
149 | enable_irqs_function(irqmask); |
149 | enable_irqs_function(irqmask); |
150 | else |
150 | else |
151 | panic("no enable_irqs_function\n"); |
151 | panic("no enable_irqs_function\n"); |
152 | } |
152 | } |
153 | 153 | ||
154 | void trap_virtual_disable_irqs(__u16 irqmask) |
154 | void trap_virtual_disable_irqs(__u16 irqmask) |
155 | { |
155 | { |
156 | if (disable_irqs_function) |
156 | if (disable_irqs_function) |
157 | disable_irqs_function(irqmask); |
157 | disable_irqs_function(irqmask); |
158 | else |
158 | else |
159 | panic("no disable_irqs_function\n"); |
159 | panic("no disable_irqs_function\n"); |
160 | } |
160 | } |
161 | 161 | ||
162 | void trap_virtual_eoi(void) |
162 | void trap_virtual_eoi(void) |
163 | { |
163 | { |
164 | if (eoi_function) |
164 | if (eoi_function) |
165 | eoi_function(); |
165 | eoi_function(); |
166 | else |
166 | else |
167 | panic("no eoi_function\n"); |
167 | panic("no eoi_function\n"); |
168 | 168 | ||
169 | } |
169 | } |
170 | 170 |