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