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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 | #include <arch.h> |
37 | #include <arch.h> |
38 | 38 | ||
39 | /* |
39 | /* |
40 | * Interrupt and exception dispatching. |
40 | * Interrupt and exception dispatching. |
41 | */ |
41 | */ |
42 | 42 | ||
43 | static iroutine ivt[IVT_ITEMS]; |
43 | static iroutine ivt[IVT_ITEMS]; |
44 | 44 | ||
45 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
45 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
46 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
46 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
47 | void (* eoi_function)(void) = NULL; |
47 | void (* eoi_function)(void) = NULL; |
48 | 48 | ||
49 | iroutine trap_register(__u8 n, iroutine f) |
49 | iroutine trap_register(__u8 n, iroutine f) |
50 | { |
50 | { |
51 | iroutine old; |
51 | iroutine old; |
52 | 52 | ||
53 | old = ivt[n]; |
53 | old = ivt[n]; |
54 | ivt[n] = f; |
54 | ivt[n] = f; |
55 | 55 | ||
56 | return old; |
56 | return old; |
57 | } |
57 | } |
58 | 58 | ||
59 | /* |
59 | /* |
60 | * Called directly from the assembler code. |
60 | * Called directly from the assembler code. |
61 | * CPU is cpu_priority_high(). |
61 | * CPU is cpu_priority_high(). |
62 | */ |
62 | */ |
63 | void trap_dispatcher(__u8 n, __u32 stack[]) |
63 | void trap_dispatcher(__u8 n, __u32 stack[]) |
64 | { |
64 | { |
65 | ivt[n](n,stack); |
65 | ivt[n](n,stack); |
66 | } |
66 | } |
67 | 67 | ||
68 | void null_interrupt(__u8 n, __u32 stack[]) |
68 | void null_interrupt(__u8 n, __u32 stack[]) |
69 | { |
69 | { |
70 | printf("int %d: null_interrupt\n", n); |
70 | printf("int %d: null_interrupt\n", n); |
71 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
71 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
72 | panic("unserviced interrupt\n"); |
72 | panic("unserviced interrupt\n"); |
73 | } |
73 | } |
74 | 74 | ||
75 | void gp_fault(__u8 n, __u32 stack[]) |
75 | void gp_fault(__u8 n, __u32 stack[]) |
76 | { |
76 | { |
77 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
77 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
78 | 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("%%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); |
79 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
79 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
80 | panic("general protection fault\n"); |
80 | panic("general protection fault\n"); |
81 | } |
81 | } |
82 | 82 | ||
83 | void page_fault(__u8 n, __u32 stack[]) |
83 | void page_fault(__u8 n, __u32 stack[]) |
84 | { |
84 | { |
85 | printf("page fault address: %X\n", cpu_read_cr2()); |
85 | printf("page fault address: %X\n", cpu_read_cr2()); |
86 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
86 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
87 | 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("%%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); |
88 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
88 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
89 | panic("page fault\n"); |
89 | panic("page fault\n"); |
90 | } |
90 | } |
91 | 91 | ||
92 | void syscall(__u8 n, __u32 stack[]) |
92 | void syscall(__u8 n, __u32 stack[]) |
93 | { |
93 | { |
94 | printf("cpu%d: syscall\n", CPU->id); |
94 | printf("cpu%d: syscall\n", CPU->id); |
95 | thread_usleep(1000000); |
95 | thread_usleep(1000); |
96 | } |
96 | } |
97 | 97 | ||
98 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
98 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
99 | { |
99 | { |
100 | trap_virtual_eoi(); |
100 | trap_virtual_eoi(); |
101 | tlb_shootdown_ipi_recv(); |
101 | tlb_shootdown_ipi_recv(); |
102 | } |
102 | } |
103 | 103 | ||
104 | void wakeup_ipi(__u8 n, __u32 stack[]) |
104 | void wakeup_ipi(__u8 n, __u32 stack[]) |
105 | { |
105 | { |
106 | trap_virtual_eoi(); |
106 | trap_virtual_eoi(); |
107 | } |
107 | } |
108 | 108 | ||
109 | void trap_virtual_enable_irqs(__u16 irqmask) |
109 | void trap_virtual_enable_irqs(__u16 irqmask) |
110 | { |
110 | { |
111 | if (enable_irqs_function) |
111 | if (enable_irqs_function) |
112 | enable_irqs_function(irqmask); |
112 | enable_irqs_function(irqmask); |
113 | else |
113 | else |
114 | panic(PANIC "no enable_irqs_function\n"); |
114 | panic(PANIC "no enable_irqs_function\n"); |
115 | } |
115 | } |
116 | 116 | ||
117 | void trap_virtual_disable_irqs(__u16 irqmask) |
117 | void trap_virtual_disable_irqs(__u16 irqmask) |
118 | { |
118 | { |
119 | if (disable_irqs_function) |
119 | if (disable_irqs_function) |
120 | disable_irqs_function(irqmask); |
120 | disable_irqs_function(irqmask); |
121 | else |
121 | else |
122 | panic(PANIC "no disable_irqs_function\n"); |
122 | panic(PANIC "no disable_irqs_function\n"); |
123 | } |
123 | } |
124 | 124 | ||
125 | void trap_virtual_eoi(void) |
125 | void trap_virtual_eoi(void) |
126 | { |
126 | { |
127 | if (eoi_function) |
127 | if (eoi_function) |
128 | eoi_function(); |
128 | eoi_function(); |
129 | else |
129 | else |
130 | panic(PANIC "no eoi_function\n"); |
130 | panic(PANIC "no eoi_function\n"); |
131 | 131 | ||
132 | } |
132 | } |
133 | 133 |