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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 <debug.h> |
31 | #include <debug.h> |
32 | #include <panic.h> |
32 | #include <panic.h> |
33 | #include <arch/i8259.h> |
33 | #include <arch/drivers/i8259.h> |
34 | #include <func.h> |
34 | #include <func.h> |
35 | #include <cpu.h> |
35 | #include <cpu.h> |
36 | #include <arch/asm.h> |
36 | #include <arch/asm.h> |
37 | #include <mm/tlb.h> |
37 | #include <mm/tlb.h> |
38 | #include <mm/as.h> |
38 | #include <mm/as.h> |
39 | #include <arch.h> |
39 | #include <arch.h> |
40 | #include <symtab.h> |
40 | #include <symtab.h> |
41 | #include <arch/asm.h> |
41 | #include <arch/asm.h> |
42 | #include <proc/scheduler.h> |
42 | #include <proc/scheduler.h> |
43 | #include <proc/thread.h> |
43 | #include <proc/thread.h> |
44 | #include <proc/task.h> |
44 | #include <proc/task.h> |
45 | #include <synch/spinlock.h> |
45 | #include <synch/spinlock.h> |
46 | #include <arch/ddi/ddi.h> |
46 | #include <arch/ddi/ddi.h> |
47 | #include <interrupt.h> |
47 | #include <interrupt.h> |
48 | #include <ipc/irq.h> |
48 | #include <ipc/irq.h> |
49 | 49 | ||
50 | void print_info_errcode(int n, istate_t *istate) |
50 | void print_info_errcode(int n, istate_t *istate) |
51 | { |
51 | { |
52 | char *symbol; |
52 | char *symbol; |
53 | /* __u64 *x = &istate->stack[0]; */ |
53 | /* __u64 *x = &istate->stack[0]; */ |
54 | 54 | ||
55 | if (!(symbol=get_symtab_entry(istate->rip))) |
55 | if (!(symbol=get_symtab_entry(istate->rip))) |
56 | symbol = ""; |
56 | symbol = ""; |
57 | 57 | ||
58 | printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n, __FUNCTION__); |
58 | printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n, __FUNCTION__); |
59 | printf("%%rip: %#llX (%s)\n",istate->rip, symbol); |
59 | printf("%%rip: %#llX (%s)\n",istate->rip, symbol); |
60 | printf("ERROR_WORD=%#llX\n", istate->error_word); |
60 | printf("ERROR_WORD=%#llX\n", istate->error_word); |
61 | printf("%%rcs=%#llX, flags=%#llX, %%cr0=%#llX\n", istate->cs, istate->rflags,read_cr0()); |
61 | printf("%%rcs=%#llX, flags=%#llX, %%cr0=%#llX\n", istate->cs, istate->rflags,read_cr0()); |
62 | printf("%%rax=%#llX, %%rcx=%#llX, %%rdx=%#llX\n",istate->rax,istate->rcx,istate->rdx); |
62 | printf("%%rax=%#llX, %%rcx=%#llX, %%rdx=%#llX\n",istate->rax,istate->rcx,istate->rdx); |
63 | printf("%%rsi=%#llX, %%rdi=%#llX, %%r8 =%#llX\n",istate->rsi,istate->rdi,istate->r8); |
63 | printf("%%rsi=%#llX, %%rdi=%#llX, %%r8 =%#llX\n",istate->rsi,istate->rdi,istate->r8); |
64 | printf("%%r9 =%#llX, %%r10 =%#llX, %%r11=%#llX\n",istate->r9,istate->r10,istate->r11); |
64 | printf("%%r9 =%#llX, %%r10 =%#llX, %%r11=%#llX\n",istate->r9,istate->r10,istate->r11); |
65 | #ifdef CONFIG_DEBUG_ALLREGS |
65 | #ifdef CONFIG_DEBUG_ALLREGS |
66 | printf("%%r12=%#llX, %%r13=%#llX, %%r14=%#llX\n",istate->r12,istate->r13,istate->r14); |
66 | printf("%%r12=%#llX, %%r13=%#llX, %%r14=%#llX\n",istate->r12,istate->r13,istate->r14); |
67 | printf("%%r15=%#llX, %%rbx=%#llX, %%rbp=%#llX\n",istate->r15,istate->rbx,&istate->rbp); |
67 | printf("%%r15=%#llX, %%rbx=%#llX, %%rbp=%#llX\n",istate->r15,istate->rbx,&istate->rbp); |
68 | #endif |
68 | #endif |
69 | printf("%%rsp=%#llX\n",&istate->stack[0]); |
69 | printf("%%rsp=%#llX\n",&istate->stack[0]); |
70 | } |
70 | } |
71 | 71 | ||
72 | /* |
72 | /* |
73 | * Interrupt and exception dispatching. |
73 | * Interrupt and exception dispatching. |
74 | */ |
74 | */ |
75 | 75 | ||
76 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
76 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
77 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
77 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
78 | void (* eoi_function)(void) = NULL; |
78 | void (* eoi_function)(void) = NULL; |
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(n, istate); |
82 | print_info_errcode(n, istate); |
83 | panic("unserviced interrupt\n"); |
83 | panic("unserviced interrupt\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(n, istate); |
109 | print_info_errcode(n, 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(n, istate); |
115 | print_info_errcode(n, istate); |
116 | panic("stack fault\n"); |
116 | panic("stack fault\n"); |
117 | } |
117 | } |
118 | 118 | ||
119 | void nm_fault(int n, istate_t *istate) |
119 | void nm_fault(int n, istate_t *istate) |
120 | { |
120 | { |
121 | #ifdef CONFIG_FPU_LAZY |
121 | #ifdef CONFIG_FPU_LAZY |
122 | scheduler_fpu_lazy_request(); |
122 | scheduler_fpu_lazy_request(); |
123 | #else |
123 | #else |
124 | panic("fpu fault"); |
124 | panic("fpu fault"); |
125 | #endif |
125 | #endif |
126 | } |
126 | } |
127 | 127 | ||
128 | void tlb_shootdown_ipi(int n, istate_t *istate) |
128 | void tlb_shootdown_ipi(int n, istate_t *istate) |
129 | { |
129 | { |
130 | trap_virtual_eoi(); |
130 | trap_virtual_eoi(); |
131 | tlb_shootdown_ipi_recv(); |
131 | tlb_shootdown_ipi_recv(); |
132 | } |
132 | } |
133 | 133 | ||
134 | void trap_virtual_enable_irqs(__u16 irqmask) |
134 | void trap_virtual_enable_irqs(__u16 irqmask) |
135 | { |
135 | { |
136 | if (enable_irqs_function) |
136 | if (enable_irqs_function) |
137 | enable_irqs_function(irqmask); |
137 | enable_irqs_function(irqmask); |
138 | else |
138 | else |
139 | panic("no enable_irqs_function\n"); |
139 | panic("no enable_irqs_function\n"); |
140 | } |
140 | } |
141 | 141 | ||
142 | void trap_virtual_disable_irqs(__u16 irqmask) |
142 | void trap_virtual_disable_irqs(__u16 irqmask) |
143 | { |
143 | { |
144 | if (disable_irqs_function) |
144 | if (disable_irqs_function) |
145 | disable_irqs_function(irqmask); |
145 | disable_irqs_function(irqmask); |
146 | else |
146 | else |
147 | panic("no disable_irqs_function\n"); |
147 | panic("no disable_irqs_function\n"); |
148 | } |
148 | } |
149 | 149 | ||
150 | void trap_virtual_eoi(void) |
150 | void trap_virtual_eoi(void) |
151 | { |
151 | { |
152 | if (eoi_function) |
152 | if (eoi_function) |
153 | eoi_function(); |
153 | eoi_function(); |
154 | else |
154 | else |
155 | panic("no eoi_function\n"); |
155 | panic("no eoi_function\n"); |
156 | 156 | ||
157 | } |
157 | } |
158 | 158 | ||
159 | static void ipc_int(int n, istate_t *istate) |
159 | static void ipc_int(int n, istate_t *istate) |
160 | { |
160 | { |
161 | trap_virtual_eoi(); |
161 | trap_virtual_eoi(); |
162 | ipc_irq_send_notif(n-IVT_IRQBASE); |
162 | ipc_irq_send_notif(n-IVT_IRQBASE); |
163 | } |
163 | } |
164 | 164 | ||
165 | 165 | ||
166 | /* Reregister irq to be IPC-ready */ |
166 | /* Reregister irq to be IPC-ready */ |
167 | void irq_ipc_bind_arch(__native irq) |
167 | void irq_ipc_bind_arch(__native irq) |
168 | { |
168 | { |
169 | if (irq == IRQ_CLK) |
169 | if (irq == IRQ_CLK) |
170 | return; |
170 | return; |
171 | exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int); |
171 | exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int); |
172 | } |
172 | } |
173 | 173 |