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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 | 39 | ||
40 | /* |
40 | /* |
41 | * Interrupt and exception dispatching. |
41 | * Interrupt and exception dispatching. |
42 | */ |
42 | */ |
43 | 43 | ||
44 | static iroutine ivt[IVT_ITEMS]; |
44 | static iroutine ivt[IVT_ITEMS]; |
45 | 45 | ||
46 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
46 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
47 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
47 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
48 | void (* eoi_function)(void) = NULL; |
48 | void (* eoi_function)(void) = NULL; |
49 | 49 | ||
50 | iroutine trap_register(__u8 n, iroutine f) |
50 | iroutine trap_register(__u8 n, iroutine f) |
51 | { |
51 | { |
52 | ASSERT(n < IVT_ITEMS); |
52 | ASSERT(n < IVT_ITEMS); |
53 | 53 | ||
54 | iroutine old; |
54 | iroutine old; |
55 | 55 | ||
56 | old = ivt[n]; |
56 | old = ivt[n]; |
57 | ivt[n] = f; |
57 | ivt[n] = f; |
58 | 58 | ||
59 | return old; |
59 | return old; |
60 | } |
60 | } |
61 | 61 | ||
62 | /* |
62 | /* |
63 | * Called directly from the assembler code. |
63 | * Called directly from the assembler code. |
64 | * CPU is cpu_priority_high(). |
64 | * CPU is cpu_priority_high(). |
65 | */ |
65 | */ |
66 | void trap_dispatcher(__u8 n, __u32 stack[]) |
66 | void trap_dispatcher(__u8 n, __u32 stack[]) |
67 | { |
67 | { |
68 | ASSERT(n < IVT_ITEMS); |
68 | ASSERT(n < IVT_ITEMS); |
69 | 69 | ||
70 | ivt[n](n, stack); |
70 | ivt[n](n, stack); |
71 | } |
71 | } |
72 | 72 | ||
73 | void null_interrupt(__u8 n, __u32 stack[]) |
73 | void null_interrupt(__u8 n, __u32 stack[]) |
74 | { |
74 | { |
75 | printf("int %d: null_interrupt\n", n); |
75 | printf("int %d: null_interrupt\n", n); |
76 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
76 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
77 | panic("unserviced interrupt\n"); |
77 | panic("unserviced interrupt\n"); |
78 | } |
78 | } |
79 | 79 | ||
80 | void gp_fault(__u8 n, __u32 stack[]) |
80 | void gp_fault(__u8 n, __u32 stack[]) |
81 | { |
81 | { |
82 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
82 | printf("stack[0]=%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); |
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]); |
84 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
85 | panic("general protection fault\n"); |
85 | panic("general protection fault\n"); |
86 | } |
86 | } |
87 | 87 | ||
88 | void ss_fault(__u8 n, __u32 stack[]) |
88 | void ss_fault(__u8 n, __u32 stack[]) |
89 | { |
89 | { |
90 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
90 | printf("stack[0]=%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); |
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]); |
92 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
93 | panic("Stack fault\n"); |
93 | panic("Stack fault\n"); |
94 | } |
94 | } |
95 | 95 | ||
96 | 96 | ||
97 | void nm_fault(__u8 n, __u32 stack[]) |
97 | void nm_fault(__u8 n, __u32 stack[]) |
98 | { |
98 | { |
99 | 99 | ||
100 | // printf("-1\n"); |
100 | // printf("-1\n"); |
101 | reset_TS_flag(); |
101 | reset_TS_flag(); |
102 | if ((CPU->fpu_owner)!=NULL) |
102 | if ((CPU->fpu_owner)!=NULL) |
103 | { |
103 | { |
- | 104 | // printf("tid:%d \n", THREAD->tid); |
|
104 | // printf("owner %X\n",(int)(&((CPU->fpu_owner)->saved_fpu_context))); |
105 | // printf("owner:%d\n", (CPU->fpu_owner)->tid); |
105 | fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context)); |
106 | fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context)); |
106 | 107 | ||
107 | // printf("owner 2\n"); |
108 | // printf("owner 2\n"); |
108 | (CPU->fpu_owner)->fpu_context_engaged=0; /* Enables migration */ |
109 | (CPU->fpu_owner)->fpu_context_engaged=0; /* Enables migration */ |
109 | // printf("owner 3\n"); |
110 | // printf("owner 3\n"); |
110 | 111 | ||
111 | } |
112 | } |
112 | // printf("0\n"); |
113 | // printf("0\n"); |
113 | if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context)); |
114 | if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context)); |
114 | else {fpu_init();THREAD->fpu_context_exists=1;} |
115 | else {fpu_init();THREAD->fpu_context_exists=1;} |
115 | // printf("1\n"); |
116 | // printf("1\n"); |
116 | CPU->fpu_owner=THREAD; |
117 | CPU->fpu_owner=THREAD; |
117 | // printf("2\n"); |
118 | // printf("2\n"); |
118 | 119 | ||
119 | // printf("3\n"); |
120 | // printf("3\n"); |
120 | // panic("#NM fault\n"); |
121 | // panic("#NM fault\n"); |
121 | } |
122 | } |
122 | 123 | ||
123 | 124 | ||
124 | 125 | ||
125 | void page_fault(__u8 n, __u32 stack[]) |
126 | void page_fault(__u8 n, __u32 stack[]) |
126 | { |
127 | { |
127 | printf("page fault address: %X\n", cpu_read_cr2()); |
128 | printf("page fault address: %X\n", cpu_read_cr2()); |
128 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
129 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
129 | 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); |
130 | 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); |
130 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
131 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
131 | printf("page fault\n"); |
132 | printf("page fault\n"); |
132 | cpu_halt(); |
133 | cpu_halt(); |
133 | } |
134 | } |
134 | 135 | ||
135 | void syscall(__u8 n, __u32 stack[]) |
136 | void syscall(__u8 n, __u32 stack[]) |
136 | { |
137 | { |
137 | printf("cpu%d: syscall\n", CPU->id); |
138 | printf("cpu%d: syscall\n", CPU->id); |
138 | thread_usleep(1000); |
139 | thread_usleep(1000); |
139 | } |
140 | } |
140 | 141 | ||
141 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
142 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
142 | { |
143 | { |
143 | trap_virtual_eoi(); |
144 | trap_virtual_eoi(); |
144 | tlb_shootdown_ipi_recv(); |
145 | tlb_shootdown_ipi_recv(); |
145 | } |
146 | } |
146 | 147 | ||
147 | void wakeup_ipi(__u8 n, __u32 stack[]) |
148 | void wakeup_ipi(__u8 n, __u32 stack[]) |
148 | { |
149 | { |
149 | trap_virtual_eoi(); |
150 | trap_virtual_eoi(); |
150 | } |
151 | } |
151 | 152 | ||
152 | void trap_virtual_enable_irqs(__u16 irqmask) |
153 | void trap_virtual_enable_irqs(__u16 irqmask) |
153 | { |
154 | { |
154 | if (enable_irqs_function) |
155 | if (enable_irqs_function) |
155 | enable_irqs_function(irqmask); |
156 | enable_irqs_function(irqmask); |
156 | else |
157 | else |
157 | panic("no enable_irqs_function\n"); |
158 | panic("no enable_irqs_function\n"); |
158 | } |
159 | } |
159 | 160 | ||
160 | void trap_virtual_disable_irqs(__u16 irqmask) |
161 | void trap_virtual_disable_irqs(__u16 irqmask) |
161 | { |
162 | { |
162 | if (disable_irqs_function) |
163 | if (disable_irqs_function) |
163 | disable_irqs_function(irqmask); |
164 | disable_irqs_function(irqmask); |
164 | else |
165 | else |
165 | panic("no disable_irqs_function\n"); |
166 | panic("no disable_irqs_function\n"); |
166 | } |
167 | } |
167 | 168 | ||
168 | void trap_virtual_eoi(void) |
169 | void trap_virtual_eoi(void) |
169 | { |
170 | { |
170 | if (eoi_function) |
171 | if (eoi_function) |
171 | eoi_function(); |
172 | eoi_function(); |
172 | else |
173 | else |
173 | panic("no eoi_function\n"); |
174 | panic("no eoi_function\n"); |
174 | 175 | ||
175 | } |
176 | } |
176 | 177 |