Rev 92 | Rev 115 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 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 |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 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 |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 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 |
||
| 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 |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | #include <arch/interrupt.h> |
||
| 30 | #include <print.h> |
||
| 68 | decky | 31 | #include <debug.h> |
| 1 | jermar | 32 | #include <panic.h> |
| 33 | #include <arch/i8259.h> |
||
| 34 | #include <func.h> |
||
| 35 | #include <cpu.h> |
||
| 36 | #include <arch/asm.h> |
||
| 5 | jermar | 37 | #include <mm/tlb.h> |
| 22 | jermar | 38 | #include <arch.h> |
| 1 | jermar | 39 | |
| 40 | /* |
||
| 41 | * Interrupt and exception dispatching. |
||
| 42 | */ |
||
| 43 | |||
| 44 | static iroutine ivt[IVT_ITEMS]; |
||
| 45 | |||
| 46 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
||
| 47 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
||
| 48 | void (* eoi_function)(void) = NULL; |
||
| 49 | |||
| 50 | iroutine trap_register(__u8 n, iroutine f) |
||
| 51 | { |
||
| 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; |
||
| 68 | decky | 58 | |
| 59 | return old; |
||
| 1 | jermar | 60 | } |
| 61 | |||
| 62 | /* |
||
| 63 | * Called directly from the assembler code. |
||
| 64 | * CPU is cpu_priority_high(). |
||
| 65 | */ |
||
| 66 | void trap_dispatcher(__u8 n, __u32 stack[]) |
||
| 67 | { |
||
| 68 | decky | 68 | ASSERT(n < IVT_ITEMS); |
| 69 | |||
| 70 | ivt[n](n, stack); |
||
| 1 | jermar | 71 | } |
| 72 | |||
| 73 | void null_interrupt(__u8 n, __u32 stack[]) |
||
| 74 | { |
||
| 75 | printf("int %d: null_interrupt\n", n); |
||
| 76 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
||
| 77 | panic("unserviced interrupt\n"); |
||
| 78 | } |
||
| 79 | |||
| 80 | void gp_fault(__u8 n, __u32 stack[]) |
||
| 81 | { |
||
| 82 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
||
| 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); |
||
| 84 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
||
| 85 | panic("general protection fault\n"); |
||
| 86 | } |
||
| 87 | |||
| 84 | vana | 88 | void ss_fault(__u8 n, __u32 stack[]) |
| 89 | { |
||
| 90 | printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
||
| 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); |
||
| 92 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
||
| 103 | jermar | 93 | panic("stack fault\n"); |
| 84 | vana | 94 | } |
| 95 | |||
| 96 | |||
| 73 | vana | 97 | void nm_fault(__u8 n, __u32 stack[]) |
| 98 | { |
||
| 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)); |
||
| 106 | else {fpu_init();THREAD->fpu_context_exists=1;} |
||
| 75 | vana | 107 | CPU->fpu_owner=THREAD; |
| 73 | vana | 108 | } |
| 109 | |||
| 110 | |||
| 111 | |||
| 1 | jermar | 112 | void page_fault(__u8 n, __u32 stack[]) |
| 113 | { |
||
| 114 | printf("page fault address: %X\n", cpu_read_cr2()); |
||
| 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); |
||
| 117 | printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
||
| 33 | jermar | 118 | printf("page fault\n"); |
| 119 | cpu_halt(); |
||
| 1 | jermar | 120 | } |
| 121 | |||
| 122 | void syscall(__u8 n, __u32 stack[]) |
||
| 123 | { |
||
| 22 | jermar | 124 | printf("cpu%d: syscall\n", CPU->id); |
| 31 | jermar | 125 | thread_usleep(1000); |
| 1 | jermar | 126 | } |
| 127 | |||
| 6 | jermar | 128 | void tlb_shootdown_ipi(__u8 n, __u32 stack[]) |
| 5 | jermar | 129 | { |
| 130 | trap_virtual_eoi(); |
||
| 6 | jermar | 131 | tlb_shootdown_ipi_recv(); |
| 5 | jermar | 132 | } |
| 133 | |||
| 7 | jermar | 134 | void wakeup_ipi(__u8 n, __u32 stack[]) |
| 135 | { |
||
| 136 | trap_virtual_eoi(); |
||
| 137 | } |
||
| 138 | |||
| 1 | jermar | 139 | void trap_virtual_enable_irqs(__u16 irqmask) |
| 140 | { |
||
| 141 | if (enable_irqs_function) |
||
| 142 | enable_irqs_function(irqmask); |
||
| 143 | else |
||
| 68 | decky | 144 | panic("no enable_irqs_function\n"); |
| 1 | jermar | 145 | } |
| 146 | |||
| 147 | void trap_virtual_disable_irqs(__u16 irqmask) |
||
| 148 | { |
||
| 149 | if (disable_irqs_function) |
||
| 150 | disable_irqs_function(irqmask); |
||
| 151 | else |
||
| 68 | decky | 152 | panic("no disable_irqs_function\n"); |
| 1 | jermar | 153 | } |
| 154 | |||
| 155 | void trap_virtual_eoi(void) |
||
| 156 | { |
||
| 157 | if (eoi_function) |
||
| 158 | eoi_function(); |
||
| 159 | else |
||
| 68 | decky | 160 | panic("no eoi_function\n"); |
| 1 | jermar | 161 | |
| 162 | } |