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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 | 40 | ||
41 | /* |
41 | /* |
42 | * Interrupt and exception dispatching. |
42 | * Interrupt and exception dispatching. |
43 | */ |
43 | */ |
44 | 44 | ||
45 | static iroutine ivt[IVT_ITEMS]; |
45 | static iroutine ivt[IVT_ITEMS]; |
46 | 46 | ||
47 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
47 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
48 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
48 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
49 | void (* eoi_function)(void) = NULL; |
49 | void (* eoi_function)(void) = NULL; |
50 | 50 | ||
51 | #define PRINT_INFO_ERRCODE(x) { \ |
51 | #define PRINT_INFO_ERRCODE(x) { \ |
52 | char *symbol = get_symtab_entry(stack[1]); \ |
52 | char *symbol = get_symtab_entry(stack[1]); \ |
53 | if (!symbol) \ |
53 | if (!symbol) \ |
54 | symbol = ""; \ |
54 | symbol = ""; \ |
55 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
55 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
56 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
56 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
57 | printf("ERROR_WORD=%X\n", x[0]); \ |
57 | printf("ERROR_WORD=%X\n", x[0]); \ |
58 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
58 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
59 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
59 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
60 | x[-2],x[-5],x[-3],x[-4]); \ |
60 | x[-2],x[-5],x[-3],x[-4]); \ |
61 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
61 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
62 | x[-8],x[-9],x[-1],x); \ |
62 | x[-8],x[-9],x[-1],x); \ |
63 | 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]); \ |
64 | 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]); \ |
65 | } |
65 | } |
66 | 66 | ||
67 | iroutine trap_register(__u8 n, iroutine f) |
67 | iroutine trap_register(__u8 n, iroutine f) |
68 | { |
68 | { |
69 | ASSERT(n < IVT_ITEMS); |
69 | ASSERT(n < IVT_ITEMS); |
70 | 70 | ||
71 | iroutine old; |
71 | iroutine old; |
72 | 72 | ||
73 | old = ivt[n]; |
73 | old = ivt[n]; |
74 | ivt[n] = f; |
74 | ivt[n] = f; |
75 | 75 | ||
76 | return old; |
76 | return old; |
77 | } |
77 | } |
78 | 78 | ||
79 | /* |
79 | /* |
80 | * Called directly from the assembler code. |
80 | * Called directly from the assembler code. |
81 | * CPU is cpu_priority_high(). |
81 | * CPU is cpu_priority_high(). |
82 | */ |
82 | */ |
83 | void trap_dispatcher(__u8 n, __native stack[]) |
83 | void trap_dispatcher(__u8 n, __native stack[]) |
84 | { |
84 | { |
85 | ASSERT(n < IVT_ITEMS); |
85 | ASSERT(n < IVT_ITEMS); |
86 | 86 | ||
87 | ivt[n](n, stack); |
87 | ivt[n](n, stack); |
88 | } |
88 | } |
89 | 89 | ||
90 | void null_interrupt(__u8 n, __native stack[]) |
90 | void null_interrupt(__u8 n, __native stack[]) |
91 | { |
91 | { |
92 | printf("int %d: null_interrupt\n", n); |
92 | printf("int %d: null_interrupt\n", n); |
93 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
93 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
94 | panic("unserviced interrupt\n"); |
94 | panic("unserviced interrupt\n"); |
95 | } |
95 | } |
96 | 96 | ||
97 | void gp_fault(__u8 n, __native stack[]) |
97 | void gp_fault(__u8 n, __native stack[]) |
98 | { |
98 | { |
99 | PRINT_INFO_ERRCODE(stack); |
99 | PRINT_INFO_ERRCODE(stack); |
100 | panic("general protection fault\n"); |
100 | panic("general protection fault\n"); |
101 | } |
101 | } |
102 | 102 | ||
103 | void ss_fault(__u8 n, __native stack[]) |
103 | void ss_fault(__u8 n, __native stack[]) |
104 | { |
104 | { |
105 | PRINT_INFO_ERRCODE(stack); |
105 | PRINT_INFO_ERRCODE(stack); |
106 | panic("stack fault\n"); |
106 | panic("stack fault\n"); |
107 | } |
107 | } |
108 | 108 | ||
109 | 109 | ||
110 | void nm_fault(__u8 n, __native stack[]) |
110 | void nm_fault(__u8 n, __native stack[]) |
111 | { |
111 | { |
112 | reset_TS_flag(); |
- | |
113 | if (CPU->fpu_owner != NULL) { |
112 | #ifdef FPU_LAZY |
114 | fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context)); |
- | |
115 | CPU->fpu_owner->fpu_context_engaged=0; /* don't prevent migration */ |
- | |
116 | } |
- | |
117 | if (THREAD->fpu_context_exists) |
113 | scheduler_fpu_lazy_request(); |
118 | fpu_lazy_context_restore(&(THREAD->saved_fpu_context)); |
- | |
119 | else { |
114 | #else |
120 | fpu_init(); |
115 | panic("fpu fault"); |
121 | THREAD->fpu_context_exists=1; |
- | |
122 | } |
116 | #endif |
123 | CPU->fpu_owner=THREAD; |
- | |
124 | } |
117 | } |
125 | 118 | ||
126 | 119 | ||
127 | 120 | ||
128 | void page_fault(__u8 n, __native stack[]) |
121 | void page_fault(__u8 n, __native stack[]) |
129 | { |
122 | { |
130 | PRINT_INFO_ERRCODE(stack); |
123 | PRINT_INFO_ERRCODE(stack); |
131 | printf("page fault address: %X\n", read_cr2()); |
124 | printf("page fault address: %X\n", read_cr2()); |
132 | panic("page fault\n"); |
125 | panic("page fault\n"); |
133 | } |
126 | } |
134 | 127 | ||
135 | void syscall(__u8 n, __native stack[]) |
128 | void syscall(__u8 n, __native stack[]) |
136 | { |
129 | { |
137 | printf("cpu%d: syscall\n", CPU->id); |
130 | printf("cpu%d: syscall\n", CPU->id); |
138 | thread_usleep(1000); |
131 | thread_usleep(1000); |
139 | } |
132 | } |
140 | 133 | ||
141 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
134 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
142 | { |
135 | { |
143 | trap_virtual_eoi(); |
136 | trap_virtual_eoi(); |
144 | tlb_shootdown_ipi_recv(); |
137 | tlb_shootdown_ipi_recv(); |
145 | } |
138 | } |
146 | 139 | ||
147 | void wakeup_ipi(__u8 n, __native stack[]) |
140 | void wakeup_ipi(__u8 n, __native stack[]) |
148 | { |
141 | { |
149 | trap_virtual_eoi(); |
142 | trap_virtual_eoi(); |
150 | } |
143 | } |
151 | 144 | ||
152 | void trap_virtual_enable_irqs(__u16 irqmask) |
145 | void trap_virtual_enable_irqs(__u16 irqmask) |
153 | { |
146 | { |
154 | if (enable_irqs_function) |
147 | if (enable_irqs_function) |
155 | enable_irqs_function(irqmask); |
148 | enable_irqs_function(irqmask); |
156 | else |
149 | else |
157 | panic("no enable_irqs_function\n"); |
150 | panic("no enable_irqs_function\n"); |
158 | } |
151 | } |
159 | 152 | ||
160 | void trap_virtual_disable_irqs(__u16 irqmask) |
153 | void trap_virtual_disable_irqs(__u16 irqmask) |
161 | { |
154 | { |
162 | if (disable_irqs_function) |
155 | if (disable_irqs_function) |
163 | disable_irqs_function(irqmask); |
156 | disable_irqs_function(irqmask); |
164 | else |
157 | else |
165 | panic("no disable_irqs_function\n"); |
158 | panic("no disable_irqs_function\n"); |
166 | } |
159 | } |
167 | 160 | ||
168 | void trap_virtual_eoi(void) |
161 | void trap_virtual_eoi(void) |
169 | { |
162 | { |
170 | if (eoi_function) |
163 | if (eoi_function) |
171 | eoi_function(); |
164 | eoi_function(); |
172 | else |
165 | else |
173 | panic("no eoi_function\n"); |
166 | panic("no eoi_function\n"); |
174 | 167 | ||
175 | } |
168 | } |
176 | 169 |