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226 palkovsky 1
/*
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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1702 cejka 29
 /** @addtogroup amd64interrupt
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 * @{
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 */
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/** @file
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 */
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226 palkovsky 35
#include <arch/interrupt.h>
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#include <print.h>
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#include <debug.h>
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#include <panic.h>
1477 decky 39
#include <arch/drivers/i8259.h>
226 palkovsky 40
#include <func.h>
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#include <cpu.h>
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#include <arch/asm.h>
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#include <mm/tlb.h>
703 jermar 44
#include <mm/as.h>
226 palkovsky 45
#include <arch.h>
268 palkovsky 46
#include <symtab.h>
282 palkovsky 47
#include <arch/asm.h>
309 palkovsky 48
#include <proc/scheduler.h>
391 jermar 49
#include <proc/thread.h>
1256 jermar 50
#include <proc/task.h>
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#include <synch/spinlock.h>
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#include <arch/ddi/ddi.h>
1258 palkovsky 53
#include <interrupt.h>
1281 palkovsky 54
#include <ipc/irq.h>
226 palkovsky 55
 
1051 jermar 56
void print_info_errcode(int n, istate_t *istate)
297 palkovsky 57
{
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	char *symbol;
1780 jermar 59
/*	uint64_t *x = &istate->stack[0]; */
297 palkovsky 60
 
1021 jermar 61
	if (!(symbol=get_symtab_entry(istate->rip)))
286 palkovsky 62
		symbol = "";
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1021 jermar 64
	printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n, __FUNCTION__);
1735 decky 65
	printf("%%rip: %#llx (%s)\n",istate->rip, symbol);
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	printf("ERROR_WORD=%#llx\n", istate->error_word);
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	printf("%%rcs=%#llx, flags=%#llx, %%cr0=%#llx\n", istate->cs, istate->rflags, read_cr0());
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	printf("%%rax=%#llx, %%rcx=%#llx, %%rdx=%#llx\n", istate->rax, istate->rcx, istate->rdx);
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	printf("%%rsi=%#llx, %%rdi=%#llx, %%r8 =%#llx\n", istate->rsi, istate->rdi, istate->r8);
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	printf("%%r9 =%#llx, %%r10 =%#llx, %%r11=%#llx\n", istate->r9, istate->r10, istate->r11);
1100 palkovsky 71
#ifdef CONFIG_DEBUG_ALLREGS	
1735 decky 72
	printf("%%r12=%#llx, %%r13=%#llx, %%r14=%#llx\n", istate->r12, istate->r13, istate->r14);
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	printf("%%r15=%#llx, %%rbx=%#llx, %%rbp=%#llx\n", istate->r15, istate->rbx, &istate->rbp);
1100 palkovsky 74
#endif
1735 decky 75
	printf("%%rsp=%#llx\n", &istate->stack[0]);
286 palkovsky 76
}
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226 palkovsky 78
/*
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 * Interrupt and exception dispatching.
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 */
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1780 jermar 82
void (* disable_irqs_function)(uint16_t irqmask) = NULL;
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void (* enable_irqs_function)(uint16_t irqmask) = NULL;
226 palkovsky 84
void (* eoi_function)(void) = NULL;
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958 jermar 86
void null_interrupt(int n, istate_t *istate)
226 palkovsky 87
{
1595 palkovsky 88
	fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
1021 jermar 89
	print_info_errcode(n, istate);
226 palkovsky 90
	panic("unserviced interrupt\n");
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}
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1256 jermar 93
/** General Protection Fault. */
958 jermar 94
void gp_fault(int n, istate_t *istate)
226 palkovsky 95
{
1256 jermar 96
	if (TASK) {
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		count_t ver;
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		spinlock_lock(&TASK->lock);
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		ver = TASK->arch.iomapver;
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		spinlock_unlock(&TASK->lock);
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103
		if (CPU->arch.iomapver_copy != ver) {
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			/*
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			 * This fault can be caused by an early access
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			 * to I/O port because of an out-dated
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			 * I/O Permission bitmap installed on CPU.
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			 * Install the fresh copy and restart
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			 * the instruction.
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			 */
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			io_perm_bitmap_install();
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			return;
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		}
1595 palkovsky 114
		fault_if_from_uspace(istate, "general protection fault");
1256 jermar 115
	}
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958 jermar 117
	print_info_errcode(n, istate);
226 palkovsky 118
	panic("general protection fault\n");
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}
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958 jermar 121
void ss_fault(int n, istate_t *istate)
226 palkovsky 122
{
1595 palkovsky 123
	fault_if_from_uspace(istate, "stack fault");
958 jermar 124
	print_info_errcode(n, istate);
226 palkovsky 125
	panic("stack fault\n");
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}
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958 jermar 128
void nm_fault(int n, istate_t *istate)
226 palkovsky 129
{
458 decky 130
#ifdef CONFIG_FPU_LAZY     
309 palkovsky 131
	scheduler_fpu_lazy_request();
132
#else
1595 palkovsky 133
	fault_if_from_uspace(istate, "fpu fault");
309 palkovsky 134
	panic("fpu fault");
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#endif
226 palkovsky 136
}
137
 
958 jermar 138
void tlb_shootdown_ipi(int n, istate_t *istate)
226 palkovsky 139
{
140
	trap_virtual_eoi();
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	tlb_shootdown_ipi_recv();
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}
143
 
1780 jermar 144
void trap_virtual_enable_irqs(uint16_t irqmask)
226 palkovsky 145
{
146
	if (enable_irqs_function)
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		enable_irqs_function(irqmask);
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	else
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		panic("no enable_irqs_function\n");
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}
151
 
1780 jermar 152
void trap_virtual_disable_irqs(uint16_t irqmask)
226 palkovsky 153
{
154
	if (disable_irqs_function)
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		disable_irqs_function(irqmask);
156
	else
157
		panic("no disable_irqs_function\n");
158
}
159
 
160
void trap_virtual_eoi(void)
161
{
162
	if (eoi_function)
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		eoi_function();
164
	else
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		panic("no eoi_function\n");
166
 
167
}
1258 palkovsky 168
 
169
static void ipc_int(int n, istate_t *istate)
170
{
1724 palkovsky 171
	ipc_irq_send_notif(n-IVT_IRQBASE);
1258 palkovsky 172
	trap_virtual_eoi();
173
}
174
 
175
 
176
/* Reregister irq to be IPC-ready */
1780 jermar 177
void irq_ipc_bind_arch(unative_t irq)
1258 palkovsky 178
{
179
	if (irq == IRQ_CLK)
180
		return;
181
	exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int);
1724 palkovsky 182
	trap_virtual_enable_irqs(1 << irq);
1258 palkovsky 183
}
1702 cejka 184
 
185
 /** @}
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 */
187