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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 <arch/asm.h> |
40 | #include <arch/asm.h> |
41 | #include <proc/scheduler.h> |
41 | #include <proc/scheduler.h> |
42 | #include <proc/thread.h> |
42 | #include <proc/thread.h> |
43 | 43 | ||
44 | 44 | ||
45 | static void messy_stack_trace(__native *stack) |
45 | static void messy_stack_trace(__native *stack) |
46 | { |
46 | { |
47 | __native *upper_limit = (__native *)(((__native)get_stack_base()) + STACK_SIZE); |
47 | __native *upper_limit = (__native *)(((__native)get_stack_base()) + STACK_SIZE); |
48 | char *symbol; |
48 | char *symbol; |
49 | 49 | ||
50 | printf("Stack contents: "); |
50 | printf("Stack contents: "); |
51 | while (stack < upper_limit) { |
51 | while (stack < upper_limit) { |
52 | symbol = get_symtab_entry((__address)*stack); |
52 | symbol = get_symtab_entry((__address)*stack); |
53 | if (symbol) |
53 | if (symbol) |
54 | printf("%s, ", symbol); |
54 | printf("%s, ", symbol); |
55 | stack++; |
55 | stack++; |
56 | } |
56 | } |
57 | printf("\n"); |
57 | printf("\n"); |
58 | } |
58 | } |
59 | 59 | ||
60 | static void print_info_errcode(__u8 n, __native x[]) |
60 | static void print_info_errcode(__u8 n, __native x[]) |
61 | { |
61 | { |
62 | char *symbol; |
62 | char *symbol; |
63 | 63 | ||
64 | if (!(symbol=get_symtab_entry(x[1]))) |
64 | if (!(symbol=get_symtab_entry(x[1]))) |
65 | symbol = ""; |
65 | symbol = ""; |
66 | 66 | ||
67 | printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); |
67 | printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); |
68 | printf("%%rip: %Q (%s)\n",x[1],symbol); |
68 | printf("%%rip: %Q (%s)\n",x[1],symbol); |
69 | printf("ERROR_WORD=%Q\n", x[0]); |
69 | printf("ERROR_WORD=%Q\n", x[0]); |
70 | printf("%%rcs=%Q,flags=%Q, %%cr0=%Q\n", x[2], x[3],read_cr0()); |
70 | printf("%%rcs=%Q,flags=%Q, %%cr0=%Q\n", x[2], x[3],read_cr0()); |
71 | printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q\n",x[-2],x[-3],x[-4]); |
71 | printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q\n",x[-2],x[-3],x[-4]); |
72 | printf("%%rdx=%Q, %%rsi=%Q, %%rdi=%Q\n",x[-5],x[-6],x[-7]); |
72 | printf("%%rdx=%Q, %%rsi=%Q, %%rdi=%Q\n",x[-5],x[-6],x[-7]); |
73 | printf("%%r8 =%Q, %%r9 =%Q, %%r10=%Q\n",x[-8],x[-9],x[-10]); |
73 | printf("%%r8 =%Q, %%r9 =%Q, %%r10=%Q\n",x[-8],x[-9],x[-10]); |
74 | printf("%%r11=%Q, %%r12=%Q, %%r13=%Q\n",x[-11],x[-12],x[-13]); |
74 | printf("%%r11=%Q, %%r12=%Q, %%r13=%Q\n",x[-11],x[-12],x[-13]); |
75 | printf("%%r14=%Q, %%r15=%Q, %%rsp=%Q\n",x[-14],x[-15],x); |
75 | printf("%%r14=%Q, %%r15=%Q, %%rsp=%Q\n",x[-14],x[-15],x); |
76 | printf("%%rbp=%Q\n",x[-1]); |
76 | printf("%%rbp=%Q\n",x[-1]); |
77 | printf("stack: %Q, %Q, %Q\n", x[5], x[6], x[7]); |
77 | printf("stack: %Q, %Q, %Q\n", x[5], x[6], x[7]); |
78 | printf(" %Q, %Q, %Q\n", x[8], x[9], x[10]); |
78 | printf(" %Q, %Q, %Q\n", x[8], x[9], x[10]); |
79 | printf(" %Q, %Q, %Q\n", x[11], x[12], x[13]); |
79 | printf(" %Q, %Q, %Q\n", x[11], x[12], x[13]); |
80 | printf(" %Q, %Q, %Q\n", x[14], x[15], x[16]); |
80 | printf(" %Q, %Q, %Q\n", x[14], x[15], x[16]); |
81 | printf(" %Q, %Q, %Q\n", x[17], x[18], x[19]); |
81 | printf(" %Q, %Q, %Q\n", x[17], x[18], x[19]); |
82 | printf(" %Q, %Q, %Q\n", x[20], x[21], x[22]); |
82 | printf(" %Q, %Q, %Q\n", x[20], x[21], x[22]); |
83 | printf(" %Q, %Q, %Q\n", x[23], x[24], x[25]); |
83 | printf(" %Q, %Q, %Q\n", x[23], x[24], x[25]); |
84 | messy_stack_trace(&x[5]); |
84 | messy_stack_trace(&x[5]); |
85 | } |
85 | } |
86 | 86 | ||
87 | /* |
87 | /* |
88 | * Interrupt and exception dispatching. |
88 | * Interrupt and exception dispatching. |
89 | */ |
89 | */ |
90 | 90 | ||
91 | static iroutine ivt[IVT_ITEMS]; |
91 | static iroutine ivt[IVT_ITEMS]; |
92 | 92 | ||
93 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
93 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
94 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
94 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
95 | void (* eoi_function)(void) = NULL; |
95 | void (* eoi_function)(void) = NULL; |
96 | 96 | ||
97 | iroutine trap_register(__u8 n, iroutine f) |
97 | iroutine trap_register(__u8 n, iroutine f) |
98 | { |
98 | { |
99 | ASSERT(n < IVT_ITEMS); |
99 | ASSERT(n < IVT_ITEMS); |
100 | 100 | ||
101 | iroutine old; |
101 | iroutine old; |
102 | 102 | ||
103 | old = ivt[n]; |
103 | old = ivt[n]; |
104 | ivt[n] = f; |
104 | ivt[n] = f; |
105 | 105 | ||
106 | return old; |
106 | return old; |
107 | } |
107 | } |
108 | 108 | ||
109 | /* |
109 | /* |
110 | * Called directly from the assembler code. |
110 | * Called directly from the assembler code. |
111 | * CPU is interrupts_disable()'d. |
111 | * CPU is interrupts_disable()'d. |
112 | */ |
112 | */ |
113 | void trap_dispatcher(__u8 n, __native stack[]) |
113 | void trap_dispatcher(__u8 n, __native stack[]) |
114 | { |
114 | { |
115 | ASSERT(n < IVT_ITEMS); |
115 | ASSERT(n < IVT_ITEMS); |
116 | 116 | ||
117 | ivt[n](n, stack); |
117 | ivt[n](n, stack); |
118 | } |
118 | } |
119 | 119 | ||
120 | void null_interrupt(__u8 n, __native stack[]) |
120 | void null_interrupt(__u8 n, __native stack[]) |
121 | { |
121 | { |
122 | printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); \ |
122 | printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); \ |
123 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
123 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
124 | panic("unserviced interrupt\n"); |
124 | panic("unserviced interrupt\n"); |
125 | } |
125 | } |
126 | 126 | ||
127 | void gp_fault(__u8 n, __native stack[]) |
127 | void gp_fault(__u8 n, __native stack[]) |
128 | { |
128 | { |
129 | print_info_errcode(n,stack); |
129 | print_info_errcode(n,stack); |
130 | panic("general protection fault\n"); |
130 | panic("general protection fault\n"); |
131 | } |
131 | } |
132 | 132 | ||
133 | void ss_fault(__u8 n, __native stack[]) |
133 | void ss_fault(__u8 n, __native stack[]) |
134 | { |
134 | { |
135 | print_info_errcode(n,stack); |
135 | print_info_errcode(n,stack); |
136 | panic("stack fault\n"); |
136 | panic("stack fault\n"); |
137 | } |
137 | } |
138 | 138 | ||
139 | 139 | ||
140 | void nm_fault(__u8 n, __native stack[]) |
140 | void nm_fault(__u8 n, __native stack[]) |
141 | { |
141 | { |
142 | #ifdef FPU_LAZY |
142 | #ifdef CONFIG_FPU_LAZY |
143 | scheduler_fpu_lazy_request(); |
143 | scheduler_fpu_lazy_request(); |
144 | #else |
144 | #else |
145 | panic("fpu fault"); |
145 | panic("fpu fault"); |
146 | #endif |
146 | #endif |
147 | } |
147 | } |
148 | 148 | ||
149 | 149 | ||
150 | 150 | ||
151 | void page_fault(__u8 n, __native stack[]) |
151 | void page_fault(__u8 n, __native stack[]) |
152 | { |
152 | { |
153 | print_info_errcode(n,stack); |
153 | print_info_errcode(n,stack); |
154 | printf("Page fault address: %Q\n", read_cr2()); |
154 | printf("Page fault address: %Q\n", read_cr2()); |
155 | panic("page fault\n"); |
155 | panic("page fault\n"); |
156 | } |
156 | } |
157 | 157 | ||
158 | void syscall(__u8 n, __native stack[]) |
158 | void syscall(__u8 n, __native stack[]) |
159 | { |
159 | { |
160 | printf("cpu%d: syscall\n", CPU->id); |
160 | printf("cpu%d: syscall\n", CPU->id); |
161 | thread_usleep(1000); |
161 | thread_usleep(1000); |
162 | } |
162 | } |
163 | 163 | ||
164 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
164 | void tlb_shootdown_ipi(__u8 n, __native stack[]) |
165 | { |
165 | { |
166 | trap_virtual_eoi(); |
166 | trap_virtual_eoi(); |
167 | tlb_shootdown_ipi_recv(); |
167 | tlb_shootdown_ipi_recv(); |
168 | } |
168 | } |
169 | 169 | ||
170 | void wakeup_ipi(__u8 n, __native stack[]) |
170 | void wakeup_ipi(__u8 n, __native stack[]) |
171 | { |
171 | { |
172 | trap_virtual_eoi(); |
172 | trap_virtual_eoi(); |
173 | } |
173 | } |
174 | 174 | ||
175 | void trap_virtual_enable_irqs(__u16 irqmask) |
175 | void trap_virtual_enable_irqs(__u16 irqmask) |
176 | { |
176 | { |
177 | if (enable_irqs_function) |
177 | if (enable_irqs_function) |
178 | enable_irqs_function(irqmask); |
178 | enable_irqs_function(irqmask); |
179 | else |
179 | else |
180 | panic("no enable_irqs_function\n"); |
180 | panic("no enable_irqs_function\n"); |
181 | } |
181 | } |
182 | 182 | ||
183 | void trap_virtual_disable_irqs(__u16 irqmask) |
183 | void trap_virtual_disable_irqs(__u16 irqmask) |
184 | { |
184 | { |
185 | if (disable_irqs_function) |
185 | if (disable_irqs_function) |
186 | disable_irqs_function(irqmask); |
186 | disable_irqs_function(irqmask); |
187 | else |
187 | else |
188 | panic("no disable_irqs_function\n"); |
188 | panic("no disable_irqs_function\n"); |
189 | } |
189 | } |
190 | 190 | ||
191 | void trap_virtual_eoi(void) |
191 | void trap_virtual_eoi(void) |
192 | { |
192 | { |
193 | if (eoi_function) |
193 | if (eoi_function) |
194 | eoi_function(); |
194 | eoi_function(); |
195 | else |
195 | else |
196 | panic("no eoi_function\n"); |
196 | panic("no eoi_function\n"); |
197 | 197 | ||
198 | } |
198 | } |
199 | 199 |