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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 <panic.h> |
31 | #include <panic.h> |
32 | #include <arch/i8259.h> |
32 | #include <arch/i8259.h> |
33 | #include <func.h> |
33 | #include <func.h> |
34 | #include <cpu.h> |
34 | #include <cpu.h> |
35 | #include <arch/asm.h> |
35 | #include <arch/asm.h> |
36 | #include <mm/tlb.h> |
36 | #include <mm/tlb.h> |
37 | 37 | ||
38 | /* |
38 | /* |
39 | * Interrupt and exception dispatching. |
39 | * Interrupt and exception dispatching. |
40 | */ |
40 | */ |
41 | 41 | ||
42 | static iroutine ivt[IVT_ITEMS]; |
42 | static iroutine ivt[IVT_ITEMS]; |
43 | 43 | ||
44 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
44 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
45 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
45 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
46 | void (* eoi_function)(void) = NULL; |
46 | void (* eoi_function)(void) = NULL; |
47 | 47 | ||
48 | iroutine trap_register(__u8 n, iroutine f) |
48 | iroutine trap_register(__u8 n, iroutine f) |
49 | { |
49 | { |
50 | iroutine old; |
50 | iroutine old; |
51 | 51 | ||
52 | old = ivt[n]; |
52 | old = ivt[n]; |
53 | ivt[n] = f; |
53 | ivt[n] = f; |
54 | 54 | ||
55 | return old; |
55 | return old; |
56 | } |
56 | } |
57 | 57 | ||
58 | /* |
58 | /* |
59 | * Called directly from the assembler code. |
59 | * Called directly from the assembler code. |
60 | * CPU is cpu_priority_high(). |
60 | * CPU is cpu_priority_high(). |
61 | */ |
61 | */ |
62 | void trap_dispatcher(__u8 n, __u32 stack[]) |
62 | void trap_dispatcher(__u8 n, __u32 stack[]) |
63 | { |
63 | { |
64 | ivt[n](n,stack); |
64 | ivt[n](n,stack); |
65 | } |
65 | } |
66 | 66 | ||
67 | void null_interrupt(__u8 n, __u32 stack[]) |
67 | void null_interrupt(__u8 n, __u32 stack[]) |
68 | { |
68 | { |
69 | printf("int %d: null_interrupt\n", n); |
69 | printf("int %d: null_interrupt\n", n); |
70 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
70 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
71 | panic("unserviced interrupt\n"); |
71 | panic("unserviced interrupt\n"); |
72 | } |
72 | } |
73 | 73 | ||
74 | void gp_fault(__u8 n, __u32 stack[]) |
74 | void gp_fault(__u8 n, __u32 stack[]) |
75 | { |
75 | { |
76 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
76 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
77 | 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); |
77 | 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); |
78 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
78 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
79 | panic("general protection fault\n"); |
79 | panic("general protection fault\n"); |
80 | } |
80 | } |
81 | 81 | ||
82 | void page_fault(__u8 n, __u32 stack[]) |
82 | void page_fault(__u8 n, __u32 stack[]) |
83 | { |
83 | { |
84 | printf("page fault address: %X\n", cpu_read_cr2()); |
84 | printf("page fault address: %X\n", cpu_read_cr2()); |
85 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
85 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
86 | 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); |
86 | 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); |
87 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
87 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
88 | panic("page fault\n"); |
88 | panic("page fault\n"); |
89 | } |
89 | } |
90 | 90 | ||
91 | void syscall(__u8 n, __u32 stack[]) |
91 | void syscall(__u8 n, __u32 stack[]) |
92 | { |
92 | { |
93 | printf("syscall... "); |
93 | printf("syscall... "); |
94 | thread_sleep(1); |
94 | thread_sleep(1); |
95 | } |
95 | } |
96 | 96 | ||
97 | void tlb_shutdown_ipi(__u8 n, __u32 stack[]) |
97 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
98 | { |
98 | { |
99 | trap_virtual_eoi(); |
99 | trap_virtual_eoi(); |
100 | tlb_shutdown_ipi_recv(); |
100 | tlb_shootdown_ipi_recv(); |
101 | } |
101 | } |
102 | 102 | ||
103 | void trap_virtual_enable_irqs(__u16 irqmask) |
103 | void trap_virtual_enable_irqs(__u16 irqmask) |
104 | { |
104 | { |
105 | if (enable_irqs_function) |
105 | if (enable_irqs_function) |
106 | enable_irqs_function(irqmask); |
106 | enable_irqs_function(irqmask); |
107 | else |
107 | else |
108 | panic(PANIC "no enable_irqs_function\n"); |
108 | panic(PANIC "no enable_irqs_function\n"); |
109 | } |
109 | } |
110 | 110 | ||
111 | void trap_virtual_disable_irqs(__u16 irqmask) |
111 | void trap_virtual_disable_irqs(__u16 irqmask) |
112 | { |
112 | { |
113 | if (disable_irqs_function) |
113 | if (disable_irqs_function) |
114 | disable_irqs_function(irqmask); |
114 | disable_irqs_function(irqmask); |
115 | else |
115 | else |
116 | panic(PANIC "no disable_irqs_function\n"); |
116 | panic(PANIC "no disable_irqs_function\n"); |
117 | } |
117 | } |
118 | 118 | ||
119 | void trap_virtual_eoi(void) |
119 | void trap_virtual_eoi(void) |
120 | { |
120 | { |
121 | if (eoi_function) |
121 | if (eoi_function) |
122 | eoi_function(); |
122 | eoi_function(); |
123 | else |
123 | else |
124 | panic(PANIC "no eoi_function\n"); |
124 | panic(PANIC "no eoi_function\n"); |
125 | 125 | ||
126 | } |
126 | } |
127 | 127 |