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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 <syscall/syscall.h> |
30 | #include <syscall/syscall.h> |
31 | #include <print.h> |
31 | #include <print.h> |
32 | #include <debug.h> |
32 | #include <debug.h> |
33 | #include <panic.h> |
33 | #include <panic.h> |
34 | #include <arch/i8259.h> |
34 | #include <arch/i8259.h> |
35 | #include <func.h> |
35 | #include <func.h> |
36 | #include <cpu.h> |
36 | #include <cpu.h> |
37 | #include <arch/asm.h> |
37 | #include <arch/asm.h> |
38 | #include <mm/tlb.h> |
38 | #include <mm/tlb.h> |
39 | #include <mm/as.h> |
39 | #include <mm/as.h> |
40 | #include <arch.h> |
40 | #include <arch.h> |
41 | #include <symtab.h> |
41 | #include <symtab.h> |
42 | #include <proc/thread.h> |
42 | #include <proc/thread.h> |
43 | #include <proc/task.h> |
43 | #include <proc/task.h> |
44 | #include <synch/spinlock.h> |
44 | #include <synch/spinlock.h> |
45 | #include <arch/ddi/ddi.h> |
45 | #include <arch/ddi/ddi.h> |
- | 46 | #include <ipc/sysipc.h> |
|
- | 47 | #include <interrupt.h> |
|
46 | 48 | ||
47 | /* |
49 | /* |
48 | * Interrupt and exception dispatching. |
50 | * Interrupt and exception dispatching. |
49 | */ |
51 | */ |
50 | 52 | ||
51 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
53 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
52 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
54 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
53 | void (* eoi_function)(void) = NULL; |
55 | void (* eoi_function)(void) = NULL; |
54 | 56 | ||
55 | static void PRINT_INFO_ERRCODE(istate_t *istate) |
57 | static void PRINT_INFO_ERRCODE(istate_t *istate) |
56 | { |
58 | { |
57 | char *symbol = get_symtab_entry(istate->eip); |
59 | char *symbol = get_symtab_entry(istate->eip); |
58 | 60 | ||
59 | if (!symbol) |
61 | if (!symbol) |
60 | symbol = ""; |
62 | symbol = ""; |
61 | 63 | ||
62 | if (CPU) |
64 | if (CPU) |
63 | printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id); |
65 | printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id); |
64 | else |
66 | else |
65 | printf("----------------EXCEPTION OCCURED----------------\n"); |
67 | printf("----------------EXCEPTION OCCURED----------------\n"); |
66 | 68 | ||
67 | printf("%%eip: %#x (%s)\n",istate->eip,symbol); |
69 | printf("%%eip: %#x (%s)\n",istate->eip,symbol); |
68 | printf("ERROR_WORD=%#x\n", istate->error_word); |
70 | printf("ERROR_WORD=%#x\n", istate->error_word); |
69 | printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags); |
71 | printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags); |
70 | printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]); |
72 | printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]); |
71 | #ifdef CONFIG_DEBUG_ALLREGS |
73 | #ifdef CONFIG_DEBUG_ALLREGS |
72 | printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx); |
74 | printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx); |
73 | #endif |
75 | #endif |
74 | printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]); |
76 | printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]); |
75 | printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]); |
77 | printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]); |
76 | } |
78 | } |
77 | 79 | ||
78 | void null_interrupt(int n, istate_t *istate) |
80 | void null_interrupt(int n, istate_t *istate) |
79 | { |
81 | { |
80 | PRINT_INFO_ERRCODE(istate); |
82 | PRINT_INFO_ERRCODE(istate); |
81 | panic("unserviced interrupt: %d\n", n); |
83 | panic("unserviced interrupt: %d\n", n); |
82 | } |
84 | } |
83 | 85 | ||
84 | /** General Protection Fault. */ |
86 | /** General Protection Fault. */ |
85 | void gp_fault(int n, istate_t *istate) |
87 | void gp_fault(int n, istate_t *istate) |
86 | { |
88 | { |
87 | if (TASK) { |
89 | if (TASK) { |
88 | count_t ver; |
90 | count_t ver; |
89 | 91 | ||
90 | spinlock_lock(&TASK->lock); |
92 | spinlock_lock(&TASK->lock); |
91 | ver = TASK->arch.iomapver; |
93 | ver = TASK->arch.iomapver; |
92 | spinlock_unlock(&TASK->lock); |
94 | spinlock_unlock(&TASK->lock); |
93 | 95 | ||
94 | if (CPU->arch.iomapver_copy != ver) { |
96 | if (CPU->arch.iomapver_copy != ver) { |
95 | /* |
97 | /* |
96 | * This fault can be caused by an early access |
98 | * This fault can be caused by an early access |
97 | * to I/O port because of an out-dated |
99 | * to I/O port because of an out-dated |
98 | * I/O Permission bitmap installed on CPU. |
100 | * I/O Permission bitmap installed on CPU. |
99 | * Install the fresh copy and restart |
101 | * Install the fresh copy and restart |
100 | * the instruction. |
102 | * the instruction. |
101 | */ |
103 | */ |
102 | io_perm_bitmap_install(); |
104 | io_perm_bitmap_install(); |
103 | return; |
105 | return; |
104 | } |
106 | } |
105 | } |
107 | } |
106 | 108 | ||
107 | PRINT_INFO_ERRCODE(istate); |
109 | PRINT_INFO_ERRCODE(istate); |
108 | panic("general protection fault\n"); |
110 | panic("general protection fault\n"); |
109 | } |
111 | } |
110 | 112 | ||
111 | void ss_fault(int n, istate_t *istate) |
113 | void ss_fault(int n, istate_t *istate) |
112 | { |
114 | { |
113 | PRINT_INFO_ERRCODE(istate); |
115 | PRINT_INFO_ERRCODE(istate); |
114 | panic("stack fault\n"); |
116 | panic("stack fault\n"); |
115 | } |
117 | } |
116 | 118 | ||
117 | void simd_fp_exception(int n, istate_t *istate) |
119 | void simd_fp_exception(int n, istate_t *istate) |
118 | { |
120 | { |
119 | 121 | ||
120 | PRINT_INFO_ERRCODE(istate); |
122 | PRINT_INFO_ERRCODE(istate); |
121 | __u32 mxcsr; |
123 | __u32 mxcsr; |
122 | asm |
124 | asm |
123 | ( |
125 | ( |
124 | "stmxcsr %0;\n" |
126 | "stmxcsr %0;\n" |
125 | :"=m"(mxcsr) |
127 | :"=m"(mxcsr) |
126 | ); |
128 | ); |
127 | printf("MXCSR: %#zX\n",(__native)(mxcsr)); |
129 | printf("MXCSR: %#zX\n",(__native)(mxcsr)); |
128 | panic("SIMD FP exception(19)\n"); |
130 | panic("SIMD FP exception(19)\n"); |
129 | } |
131 | } |
130 | 132 | ||
131 | void nm_fault(int n, istate_t *istate) |
133 | void nm_fault(int n, istate_t *istate) |
132 | { |
134 | { |
133 | #ifdef CONFIG_FPU_LAZY |
135 | #ifdef CONFIG_FPU_LAZY |
134 | scheduler_fpu_lazy_request(); |
136 | scheduler_fpu_lazy_request(); |
135 | #else |
137 | #else |
136 | panic("fpu fault"); |
138 | panic("fpu fault"); |
137 | #endif |
139 | #endif |
138 | } |
140 | } |
139 | 141 | ||
140 | void page_fault(int n, istate_t *istate) |
142 | void page_fault(int n, istate_t *istate) |
141 | { |
143 | { |
142 | __address page; |
144 | __address page; |
143 | 145 | ||
144 | page = read_cr2(); |
146 | page = read_cr2(); |
145 | if (!as_page_fault(page)) { |
147 | if (!as_page_fault(page)) { |
146 | PRINT_INFO_ERRCODE(istate); |
148 | PRINT_INFO_ERRCODE(istate); |
147 | printf("page fault address: %#x\n", page); |
149 | printf("page fault address: %#x\n", page); |
148 | panic("page fault\n"); |
150 | panic("page fault\n"); |
149 | } |
151 | } |
150 | } |
152 | } |
151 | 153 | ||
152 | void syscall(int n, istate_t *istate) |
154 | void syscall(int n, istate_t *istate) |
153 | { |
155 | { |
154 | panic("Obsolete syscall handler."); |
156 | panic("Obsolete syscall handler."); |
155 | } |
157 | } |
156 | 158 | ||
157 | void tlb_shootdown_ipi(int n, istate_t *istate) |
159 | void tlb_shootdown_ipi(int n, istate_t *istate) |
158 | { |
160 | { |
159 | trap_virtual_eoi(); |
161 | trap_virtual_eoi(); |
160 | tlb_shootdown_ipi_recv(); |
162 | tlb_shootdown_ipi_recv(); |
161 | } |
163 | } |
162 | 164 | ||
163 | void trap_virtual_enable_irqs(__u16 irqmask) |
165 | void trap_virtual_enable_irqs(__u16 irqmask) |
164 | { |
166 | { |
165 | if (enable_irqs_function) |
167 | if (enable_irqs_function) |
166 | enable_irqs_function(irqmask); |
168 | enable_irqs_function(irqmask); |
167 | else |
169 | else |
168 | panic("no enable_irqs_function\n"); |
170 | panic("no enable_irqs_function\n"); |
169 | } |
171 | } |
170 | 172 | ||
171 | void trap_virtual_disable_irqs(__u16 irqmask) |
173 | void trap_virtual_disable_irqs(__u16 irqmask) |
172 | { |
174 | { |
173 | if (disable_irqs_function) |
175 | if (disable_irqs_function) |
174 | disable_irqs_function(irqmask); |
176 | disable_irqs_function(irqmask); |
175 | else |
177 | else |
176 | panic("no disable_irqs_function\n"); |
178 | panic("no disable_irqs_function\n"); |
177 | } |
179 | } |
178 | 180 | ||
179 | void trap_virtual_eoi(void) |
181 | void trap_virtual_eoi(void) |
180 | { |
182 | { |
181 | if (eoi_function) |
183 | if (eoi_function) |
182 | eoi_function(); |
184 | eoi_function(); |
183 | else |
185 | else |
184 | panic("no eoi_function\n"); |
186 | panic("no eoi_function\n"); |
185 | 187 | ||
186 | } |
188 | } |
- | 189 | ||
- | 190 | static void ipc_int(int n, istate_t *istate) |
|
- | 191 | { |
|
- | 192 | trap_virtual_eoi(); |
|
- | 193 | ipc_irq_send_notif(n-IVT_IRQBASE); |
|
- | 194 | } |
|
- | 195 | ||
- | 196 | ||
- | 197 | /* Reregister irq to be IPC-ready */ |
|
- | 198 | void irq_ipc_bind_arch(__native irq) |
|
- | 199 | { |
|
- | 200 | if (irq == IRQ_CLK) |
|
- | 201 | return; |
|
- | 202 | exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int); |
|
- | 203 | } |
|
187 | 204 |