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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 nm_fault(__u8 n, __u32 stack[]) |
|
- | 89 | { |
|
- | 90 | ||
- | 91 | if (((CPU->arch).fpu_owner)!=NULL) |
|
- | 92 | { |
|
- | 93 | fpu_lazy_context_save(&(((CPU->arch).fpu_owner)->saved_fpu_context)); |
|
- | 94 | ((CPU->arch).fpu_owner)->fpu_context_engaged=0; /* Enables migration */ |
|
- | 95 | } |
|
- | 96 | ||
- | 97 | if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context)); |
|
- | 98 | else {fpu_init();THREAD->fpu_context_exists=1;} |
|
- | 99 | ||
- | 100 | (CPU->arch).fpu_owner=THREAD; |
|
- | 101 | ||
- | 102 | reset_TS_flag(); |
|
- | 103 | ||
- | 104 | // panic("#NM fault\n"); |
|
- | 105 | } |
|
- | 106 | ||
- | 107 | ||
- | 108 | ||
88 | void page_fault(__u8 n, __u32 stack[]) |
109 | void page_fault(__u8 n, __u32 stack[]) |
89 | { |
110 | { |
90 | printf("page fault address: %X\n", cpu_read_cr2()); |
111 | printf("page fault address: %X\n", cpu_read_cr2()); |
91 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
112 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
92 | 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); |
113 | 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); |
93 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
114 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
94 | printf("page fault\n"); |
115 | printf("page fault\n"); |
95 | cpu_halt(); |
116 | cpu_halt(); |
96 | } |
117 | } |
97 | 118 | ||
98 | void syscall(__u8 n, __u32 stack[]) |
119 | void syscall(__u8 n, __u32 stack[]) |
99 | { |
120 | { |
100 | printf("cpu%d: syscall\n", CPU->id); |
121 | printf("cpu%d: syscall\n", CPU->id); |
101 | thread_usleep(1000); |
122 | thread_usleep(1000); |
102 | } |
123 | } |
103 | 124 | ||
104 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
125 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
105 | { |
126 | { |
106 | trap_virtual_eoi(); |
127 | trap_virtual_eoi(); |
107 | tlb_shootdown_ipi_recv(); |
128 | tlb_shootdown_ipi_recv(); |
108 | } |
129 | } |
109 | 130 | ||
110 | void wakeup_ipi(__u8 n, __u32 stack[]) |
131 | void wakeup_ipi(__u8 n, __u32 stack[]) |
111 | { |
132 | { |
112 | trap_virtual_eoi(); |
133 | trap_virtual_eoi(); |
113 | } |
134 | } |
114 | 135 | ||
115 | void trap_virtual_enable_irqs(__u16 irqmask) |
136 | void trap_virtual_enable_irqs(__u16 irqmask) |
116 | { |
137 | { |
117 | if (enable_irqs_function) |
138 | if (enable_irqs_function) |
118 | enable_irqs_function(irqmask); |
139 | enable_irqs_function(irqmask); |
119 | else |
140 | else |
120 | panic("no enable_irqs_function\n"); |
141 | panic("no enable_irqs_function\n"); |
121 | } |
142 | } |
122 | 143 | ||
123 | void trap_virtual_disable_irqs(__u16 irqmask) |
144 | void trap_virtual_disable_irqs(__u16 irqmask) |
124 | { |
145 | { |
125 | if (disable_irqs_function) |
146 | if (disable_irqs_function) |
126 | disable_irqs_function(irqmask); |
147 | disable_irqs_function(irqmask); |
127 | else |
148 | else |
128 | panic("no disable_irqs_function\n"); |
149 | panic("no disable_irqs_function\n"); |
129 | } |
150 | } |
130 | 151 | ||
131 | void trap_virtual_eoi(void) |
152 | void trap_virtual_eoi(void) |
132 | { |
153 | { |
133 | if (eoi_function) |
154 | if (eoi_function) |
134 | eoi_function(); |
155 | eoi_function(); |
135 | else |
156 | else |
136 | panic("no eoi_function\n"); |
157 | panic("no eoi_function\n"); |
137 | 158 | ||
138 | } |
159 | } |
139 | 160 |