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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 | /** @addtogroup ia32interrupt |
29 | /** @addtogroup ia32interrupt |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch/interrupt.h> |
35 | #include <arch/interrupt.h> |
36 | #include <syscall/syscall.h> |
36 | #include <syscall/syscall.h> |
37 | #include <print.h> |
37 | #include <print.h> |
38 | #include <debug.h> |
38 | #include <debug.h> |
39 | #include <panic.h> |
39 | #include <panic.h> |
40 | #include <arch/drivers/i8259.h> |
40 | #include <arch/drivers/i8259.h> |
41 | #include <func.h> |
41 | #include <func.h> |
42 | #include <cpu.h> |
42 | #include <cpu.h> |
43 | #include <arch/asm.h> |
43 | #include <arch/asm.h> |
44 | #include <mm/tlb.h> |
44 | #include <mm/tlb.h> |
45 | #include <mm/as.h> |
45 | #include <mm/as.h> |
46 | #include <arch.h> |
46 | #include <arch.h> |
47 | #include <proc/thread.h> |
47 | #include <proc/thread.h> |
48 | #include <proc/task.h> |
48 | #include <proc/task.h> |
49 | #include <synch/spinlock.h> |
49 | #include <synch/spinlock.h> |
50 | #include <arch/ddi/ddi.h> |
50 | #include <arch/ddi/ddi.h> |
51 | #include <ipc/sysipc.h> |
51 | #include <ipc/sysipc.h> |
52 | #include <interrupt.h> |
52 | #include <interrupt.h> |
53 | #include <ddi/irq.h> |
53 | #include <ddi/irq.h> |
54 | - | ||
55 | #ifdef CONFIG_SYMTAB |
- | |
56 | #include <symtab.h> |
54 | #include <symtab.h> |
57 | #endif |
- | |
58 | 55 | ||
59 | /* |
56 | /* |
60 | * Interrupt and exception dispatching. |
57 | * Interrupt and exception dispatching. |
61 | */ |
58 | */ |
62 | 59 | ||
63 | void (* disable_irqs_function)(uint16_t irqmask) = NULL; |
60 | void (* disable_irqs_function)(uint16_t irqmask) = NULL; |
64 | void (* enable_irqs_function)(uint16_t irqmask) = NULL; |
61 | void (* enable_irqs_function)(uint16_t irqmask) = NULL; |
65 | void (* eoi_function)(void) = NULL; |
62 | void (* eoi_function)(void) = NULL; |
66 | 63 | ||
67 | void decode_istate(istate_t *istate) |
64 | void decode_istate(istate_t *istate) |
68 | { |
65 | { |
69 | char *symbol; |
66 | char *symbol; |
70 | 67 | ||
71 | #ifdef CONFIG_SYMTAB |
- | |
72 | symbol = get_symtab_entry(istate->eip); |
68 | symbol = symtab_fmt_name_lookup(istate->eip); |
73 | if (!symbol) |
- | |
74 | symbol = ""; |
- | |
75 | #else |
- | |
76 | symbol = ""; |
- | |
77 | #endif |
- | |
78 | 69 | ||
79 | if (CPU) |
70 | if (CPU) |
80 | printf("----------------EXCEPTION OCCURED (cpu%u)----------------\n", CPU->id); |
71 | printf("----------------EXCEPTION OCCURED (cpu%u)----------------\n", CPU->id); |
81 | else |
72 | else |
82 | printf("----------------EXCEPTION OCCURED----------------\n"); |
73 | printf("----------------EXCEPTION OCCURED----------------\n"); |
83 | 74 | ||
84 | printf("%%eip: %#lx (%s)\n", istate->eip, symbol); |
75 | printf("%%eip: %#lx (%s)\n", istate->eip, symbol); |
85 | printf("ERROR_WORD=%#lx\n", istate->error_word); |
76 | printf("ERROR_WORD=%#lx\n", istate->error_word); |
86 | printf("%%cs=%#lx,flags=%#lx\n", istate->cs, istate->eflags); |
77 | printf("%%cs=%#lx,flags=%#lx\n", istate->cs, istate->eflags); |
87 | printf("%%eax=%#lx, %%ecx=%#lx, %%edx=%#lx, %%esp=%p\n", istate->eax, istate->ecx, istate->edx, &istate->stack[0]); |
78 | printf("%%eax=%#lx, %%ecx=%#lx, %%edx=%#lx, %%esp=%p\n", istate->eax, istate->ecx, istate->edx, &istate->stack[0]); |
88 | printf("stack: %#lx, %#lx, %#lx, %#lx\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]); |
79 | printf("stack: %#lx, %#lx, %#lx, %#lx\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]); |
89 | printf(" %#lx, %#lx, %#lx, %#lx\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]); |
80 | printf(" %#lx, %#lx, %#lx, %#lx\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]); |
90 | } |
81 | } |
91 | 82 | ||
92 | static void trap_virtual_eoi(void) |
83 | static void trap_virtual_eoi(void) |
93 | { |
84 | { |
94 | if (eoi_function) |
85 | if (eoi_function) |
95 | eoi_function(); |
86 | eoi_function(); |
96 | else |
87 | else |
97 | panic("No eoi_function."); |
88 | panic("No eoi_function."); |
98 | 89 | ||
99 | } |
90 | } |
100 | 91 | ||
101 | static void null_interrupt(int n, istate_t *istate) |
92 | static void null_interrupt(int n, istate_t *istate) |
102 | { |
93 | { |
103 | fault_if_from_uspace(istate, "Unserviced interrupt: %d.", n); |
94 | fault_if_from_uspace(istate, "Unserviced interrupt: %d.", n); |
104 | 95 | ||
105 | decode_istate(istate); |
96 | decode_istate(istate); |
106 | panic("Unserviced interrupt: %d.", n); |
97 | panic("Unserviced interrupt: %d.", n); |
107 | } |
98 | } |
108 | 99 | ||
109 | /** General Protection Fault. */ |
100 | /** General Protection Fault. */ |
110 | static void gp_fault(int n __attribute__((unused)), istate_t *istate) |
101 | static void gp_fault(int n __attribute__((unused)), istate_t *istate) |
111 | { |
102 | { |
112 | if (TASK) { |
103 | if (TASK) { |
113 | count_t ver; |
104 | count_t ver; |
114 | 105 | ||
115 | spinlock_lock(&TASK->lock); |
106 | spinlock_lock(&TASK->lock); |
116 | ver = TASK->arch.iomapver; |
107 | ver = TASK->arch.iomapver; |
117 | spinlock_unlock(&TASK->lock); |
108 | spinlock_unlock(&TASK->lock); |
118 | 109 | ||
119 | if (CPU->arch.iomapver_copy != ver) { |
110 | if (CPU->arch.iomapver_copy != ver) { |
120 | /* |
111 | /* |
121 | * This fault can be caused by an early access |
112 | * This fault can be caused by an early access |
122 | * to I/O port because of an out-dated |
113 | * to I/O port because of an out-dated |
123 | * I/O Permission bitmap installed on CPU. |
114 | * I/O Permission bitmap installed on CPU. |
124 | * Install the fresh copy and restart |
115 | * Install the fresh copy and restart |
125 | * the instruction. |
116 | * the instruction. |
126 | */ |
117 | */ |
127 | io_perm_bitmap_install(); |
118 | io_perm_bitmap_install(); |
128 | return; |
119 | return; |
129 | } |
120 | } |
130 | fault_if_from_uspace(istate, "General protection fault."); |
121 | fault_if_from_uspace(istate, "General protection fault."); |
131 | } |
122 | } |
132 | 123 | ||
133 | decode_istate(istate); |
124 | decode_istate(istate); |
134 | panic("General protection fault."); |
125 | panic("General protection fault."); |
135 | } |
126 | } |
136 | 127 | ||
137 | static void ss_fault(int n __attribute__((unused)), istate_t *istate) |
128 | static void ss_fault(int n __attribute__((unused)), istate_t *istate) |
138 | { |
129 | { |
139 | fault_if_from_uspace(istate, "Stack fault."); |
130 | fault_if_from_uspace(istate, "Stack fault."); |
140 | 131 | ||
141 | decode_istate(istate); |
132 | decode_istate(istate); |
142 | panic("Stack fault."); |
133 | panic("Stack fault."); |
143 | } |
134 | } |
144 | 135 | ||
145 | static void simd_fp_exception(int n __attribute__((unused)), istate_t *istate) |
136 | static void simd_fp_exception(int n __attribute__((unused)), istate_t *istate) |
146 | { |
137 | { |
147 | uint32_t mxcsr; |
138 | uint32_t mxcsr; |
148 | asm ( |
139 | asm ( |
149 | "stmxcsr %[mxcsr]\n" |
140 | "stmxcsr %[mxcsr]\n" |
150 | : [mxcsr] "=m" (mxcsr) |
141 | : [mxcsr] "=m" (mxcsr) |
151 | ); |
142 | ); |
152 | fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx.", |
143 | fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx.", |
153 | (unative_t) mxcsr); |
144 | (unative_t) mxcsr); |
154 | 145 | ||
155 | decode_istate(istate); |
146 | decode_istate(istate); |
156 | printf("MXCSR: %#lx\n", mxcsr); |
147 | printf("MXCSR: %#lx\n", mxcsr); |
157 | panic("SIMD FP exception(19)."); |
148 | panic("SIMD FP exception(19)."); |
158 | } |
149 | } |
159 | 150 | ||
160 | static void nm_fault(int n __attribute__((unused)), istate_t *istate __attribute__((unused))) |
151 | static void nm_fault(int n __attribute__((unused)), istate_t *istate __attribute__((unused))) |
161 | { |
152 | { |
162 | #ifdef CONFIG_FPU_LAZY |
153 | #ifdef CONFIG_FPU_LAZY |
163 | scheduler_fpu_lazy_request(); |
154 | scheduler_fpu_lazy_request(); |
164 | #else |
155 | #else |
165 | fault_if_from_uspace(istate, "FPU fault."); |
156 | fault_if_from_uspace(istate, "FPU fault."); |
166 | panic("FPU fault."); |
157 | panic("FPU fault."); |
167 | #endif |
158 | #endif |
168 | } |
159 | } |
169 | 160 | ||
170 | #ifdef CONFIG_SMP |
161 | #ifdef CONFIG_SMP |
171 | static void tlb_shootdown_ipi(int n __attribute__((unused)), istate_t *istate __attribute__((unused))) |
162 | static void tlb_shootdown_ipi(int n __attribute__((unused)), istate_t *istate __attribute__((unused))) |
172 | { |
163 | { |
173 | trap_virtual_eoi(); |
164 | trap_virtual_eoi(); |
174 | tlb_shootdown_ipi_recv(); |
165 | tlb_shootdown_ipi_recv(); |
175 | } |
166 | } |
176 | #endif |
167 | #endif |
177 | 168 | ||
178 | /** Handler of IRQ exceptions */ |
169 | /** Handler of IRQ exceptions */ |
179 | static void irq_interrupt(int n, istate_t *istate __attribute__((unused))) |
170 | static void irq_interrupt(int n, istate_t *istate __attribute__((unused))) |
180 | { |
171 | { |
181 | ASSERT(n >= IVT_IRQBASE); |
172 | ASSERT(n >= IVT_IRQBASE); |
182 | 173 | ||
183 | int inum = n - IVT_IRQBASE; |
174 | int inum = n - IVT_IRQBASE; |
184 | bool ack = false; |
175 | bool ack = false; |
185 | ASSERT(inum < IRQ_COUNT); |
176 | ASSERT(inum < IRQ_COUNT); |
186 | ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1)); |
177 | ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1)); |
187 | 178 | ||
188 | irq_t *irq = irq_dispatch_and_lock(inum); |
179 | irq_t *irq = irq_dispatch_and_lock(inum); |
189 | if (irq) { |
180 | if (irq) { |
190 | /* |
181 | /* |
191 | * The IRQ handler was found. |
182 | * The IRQ handler was found. |
192 | */ |
183 | */ |
193 | 184 | ||
194 | if (irq->preack) { |
185 | if (irq->preack) { |
195 | /* Send EOI before processing the interrupt */ |
186 | /* Send EOI before processing the interrupt */ |
196 | trap_virtual_eoi(); |
187 | trap_virtual_eoi(); |
197 | ack = true; |
188 | ack = true; |
198 | } |
189 | } |
199 | irq->handler(irq); |
190 | irq->handler(irq); |
200 | spinlock_unlock(&irq->lock); |
191 | spinlock_unlock(&irq->lock); |
201 | } else { |
192 | } else { |
202 | /* |
193 | /* |
203 | * Spurious interrupt. |
194 | * Spurious interrupt. |
204 | */ |
195 | */ |
205 | #ifdef CONFIG_DEBUG |
196 | #ifdef CONFIG_DEBUG |
206 | printf("cpu%u: spurious interrupt (inum=%d)\n", CPU->id, inum); |
197 | printf("cpu%u: spurious interrupt (inum=%d)\n", CPU->id, inum); |
207 | #endif |
198 | #endif |
208 | } |
199 | } |
209 | 200 | ||
210 | if (!ack) |
201 | if (!ack) |
211 | trap_virtual_eoi(); |
202 | trap_virtual_eoi(); |
212 | } |
203 | } |
213 | 204 | ||
214 | void interrupt_init(void) |
205 | void interrupt_init(void) |
215 | { |
206 | { |
216 | int i; |
207 | int i; |
217 | 208 | ||
218 | for (i = 0; i < IVT_ITEMS; i++) |
209 | for (i = 0; i < IVT_ITEMS; i++) |
219 | exc_register(i, "null", (iroutine) null_interrupt); |
210 | exc_register(i, "null", (iroutine) null_interrupt); |
220 | 211 | ||
221 | for (i = 0; i < IRQ_COUNT; i++) { |
212 | for (i = 0; i < IRQ_COUNT; i++) { |
222 | if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1)) |
213 | if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1)) |
223 | exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt); |
214 | exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt); |
224 | } |
215 | } |
225 | 216 | ||
226 | exc_register(7, "nm_fault", (iroutine) nm_fault); |
217 | exc_register(7, "nm_fault", (iroutine) nm_fault); |
227 | exc_register(12, "ss_fault", (iroutine) ss_fault); |
218 | exc_register(12, "ss_fault", (iroutine) ss_fault); |
228 | exc_register(13, "gp_fault", (iroutine) gp_fault); |
219 | exc_register(13, "gp_fault", (iroutine) gp_fault); |
229 | exc_register(19, "simd_fp", (iroutine) simd_fp_exception); |
220 | exc_register(19, "simd_fp", (iroutine) simd_fp_exception); |
230 | 221 | ||
231 | #ifdef CONFIG_SMP |
222 | #ifdef CONFIG_SMP |
232 | exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi); |
223 | exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi); |
233 | #endif |
224 | #endif |
234 | } |
225 | } |
235 | 226 | ||
236 | void trap_virtual_enable_irqs(uint16_t irqmask) |
227 | void trap_virtual_enable_irqs(uint16_t irqmask) |
237 | { |
228 | { |
238 | if (enable_irqs_function) |
229 | if (enable_irqs_function) |
239 | enable_irqs_function(irqmask); |
230 | enable_irqs_function(irqmask); |
240 | else |
231 | else |
241 | panic("No enable_irqs_function."); |
232 | panic("No enable_irqs_function."); |
242 | } |
233 | } |
243 | 234 | ||
244 | void trap_virtual_disable_irqs(uint16_t irqmask) |
235 | void trap_virtual_disable_irqs(uint16_t irqmask) |
245 | { |
236 | { |
246 | if (disable_irqs_function) |
237 | if (disable_irqs_function) |
247 | disable_irqs_function(irqmask); |
238 | disable_irqs_function(irqmask); |
248 | else |
239 | else |
249 | panic("No disable_irqs_function."); |
240 | panic("No disable_irqs_function."); |
250 | } |
241 | } |
251 | 242 | ||
252 | /** @} |
243 | /** @} |
253 | */ |
244 | */ |
254 | 245 |