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| Rev | Author | Line No. | Line |
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| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include <arch/interrupt.h> |
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| 30 | #include <print.h> |
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| 68 | decky | 31 | #include <debug.h> |
| 1 | jermar | 32 | #include <panic.h> |
| 33 | #include <arch/i8259.h> |
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| 34 | #include <func.h> |
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| 35 | #include <cpu.h> |
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| 36 | #include <arch/asm.h> |
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| 5 | jermar | 37 | #include <mm/tlb.h> |
| 22 | jermar | 38 | #include <arch.h> |
| 1 | jermar | 39 | |
| 40 | /* |
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| 41 | * Interrupt and exception dispatching. |
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| 42 | */ |
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| 43 | |||
| 44 | static iroutine ivt[IVT_ITEMS]; |
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| 45 | |||
| 46 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
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| 47 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
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| 48 | void (* eoi_function)(void) = NULL; |
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| 49 | |||
| 50 | iroutine trap_register(__u8 n, iroutine f) |
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| 51 | { |
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| 68 | decky | 52 | ASSERT(n < IVT_ITEMS); |
| 53 | |||
| 1 | jermar | 54 | iroutine old; |
| 68 | decky | 55 | |
| 1 | jermar | 56 | old = ivt[n]; |
| 57 | ivt[n] = f; |
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| 68 | decky | 58 | |
| 59 | return old; |
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| 1 | jermar | 60 | } |
| 61 | |||
| 62 | /* |
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| 63 | * Called directly from the assembler code. |
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| 64 | * CPU is cpu_priority_high(). |
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| 65 | */ |
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| 66 | void trap_dispatcher(__u8 n, __u32 stack[]) |
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| 67 | { |
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| 68 | decky | 68 | ASSERT(n < IVT_ITEMS); |
| 69 | |||
| 70 | ivt[n](n, stack); |
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| 1 | jermar | 71 | } |
| 72 | |||
| 73 | void null_interrupt(__u8 n, __u32 stack[]) |
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| 74 | { |
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| 75 | printf("int %d: null_interrupt\n", n); |
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| 76 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
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| 77 | panic("unserviced interrupt\n"); |
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| 78 | } |
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| 79 | |||
| 80 | void gp_fault(__u8 n, __u32 stack[]) |
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| 81 | { |
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| 82 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
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| 83 | 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); |
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| 84 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
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| 85 | panic("general protection fault\n"); |
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| 86 | } |
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| 87 | |||
| 84 | vana | 88 | void ss_fault(__u8 n, __u32 stack[]) |
| 89 | { |
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| 90 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
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| 91 | 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); |
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| 92 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
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| 103 | jermar | 93 | panic("stack fault\n"); |
| 84 | vana | 94 | } |
| 95 | |||
| 96 | |||
| 73 | vana | 97 | void nm_fault(__u8 n, __u32 stack[]) |
| 98 | { |
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| 84 | vana | 99 | reset_TS_flag(); |
| 75 | vana | 100 | if ((CPU->fpu_owner)!=NULL) |
| 73 | vana | 101 | { |
| 84 | vana | 102 | fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context)); |
| 92 | jermar | 103 | (CPU->fpu_owner)->fpu_context_engaged=0; /* don't prevent migration */ |
| 73 | vana | 104 | } |
| 105 | if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context)); |
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| 106 | else {fpu_init();THREAD->fpu_context_exists=1;} |
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| 75 | vana | 107 | CPU->fpu_owner=THREAD; |
| 73 | vana | 108 | } |
| 109 | |||
| 110 | |||
| 111 | |||
| 1 | jermar | 112 | void page_fault(__u8 n, __u32 stack[]) |
| 113 | { |
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| 115 | jermar | 114 | printf("page fault address: %X\n", read_cr2()); |
| 1 | jermar | 115 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
| 116 | 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); |
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| 117 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
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| 117 | jermar | 118 | panic("page fault\n"); |
| 1 | jermar | 119 | } |
| 120 | |||
| 121 | void syscall(__u8 n, __u32 stack[]) |
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| 122 | { |
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| 22 | jermar | 123 | printf("cpu%d: syscall\n", CPU->id); |
| 31 | jermar | 124 | thread_usleep(1000); |
| 1 | jermar | 125 | } |
| 126 | |||
| 6 | jermar | 127 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
| 5 | jermar | 128 | { |
| 129 | trap_virtual_eoi(); |
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| 6 | jermar | 130 | tlb_shootdown_ipi_recv(); |
| 5 | jermar | 131 | } |
| 132 | |||
| 7 | jermar | 133 | void wakeup_ipi(__u8 n, __u32 stack[]) |
| 134 | { |
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| 135 | trap_virtual_eoi(); |
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| 136 | } |
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| 137 | |||
| 1 | jermar | 138 | void trap_virtual_enable_irqs(__u16 irqmask) |
| 139 | { |
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| 140 | if (enable_irqs_function) |
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| 141 | enable_irqs_function(irqmask); |
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| 142 | else |
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| 68 | decky | 143 | panic("no enable_irqs_function\n"); |
| 1 | jermar | 144 | } |
| 145 | |||
| 146 | void trap_virtual_disable_irqs(__u16 irqmask) |
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| 147 | { |
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| 148 | if (disable_irqs_function) |
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| 149 | disable_irqs_function(irqmask); |
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| 150 | else |
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| 68 | decky | 151 | panic("no disable_irqs_function\n"); |
| 1 | jermar | 152 | } |
| 153 | |||
| 154 | void trap_virtual_eoi(void) |
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| 155 | { |
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| 156 | if (eoi_function) |
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| 157 | eoi_function(); |
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| 158 | else |
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| 68 | decky | 159 | panic("no eoi_function\n"); |
| 1 | jermar | 160 | |
| 161 | } |