0,0 → 1,305 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* Copyright (c) 2005 Jakub Vana |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup ia64interrupt |
* @{ |
*/ |
/** @file |
*/ |
|
#include <arch/interrupt.h> |
#include <interrupt.h> |
#include <ddi/irq.h> |
#include <panic.h> |
#include <print.h> |
#include <symtab.h> |
#include <debug.h> |
#include <console/console.h> |
#include <arch/types.h> |
#include <arch/asm.h> |
#include <arch/barrier.h> |
#include <arch/register.h> |
#include <arch.h> |
#include <syscall/syscall.h> |
#include <print.h> |
#include <proc/scheduler.h> |
#include <ipc/sysipc.h> |
#include <ipc/irq.h> |
#include <ipc/ipc.h> |
#include <synch/spinlock.h> |
#include <mm/tlb.h> |
|
#define VECTORS_64_BUNDLE 20 |
#define VECTORS_16_BUNDLE 48 |
#define VECTORS_16_BUNDLE_START 0x5000 |
#define VECTOR_MAX 0x7f00 |
|
#define BUNDLE_SIZE 16 |
|
char *vector_names_64_bundle[VECTORS_64_BUNDLE] = { |
"VHPT Translation vector", |
"Instruction TLB vector", |
"Data TLB vector", |
"Alternate Instruction TLB vector", |
"Alternate Data TLB vector", |
"Data Nested TLB vector", |
"Instruction Key Miss vector", |
"Data Key Miss vector", |
"Dirty-Bit vector", |
"Instruction Access-Bit vector", |
"Data Access-Bit vector" |
"Break Instruction vector", |
"External Interrupt vector" |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved" |
}; |
|
char *vector_names_16_bundle[VECTORS_16_BUNDLE] = { |
"Page Not Present vector", |
"Key Permission vector", |
"Instruction Access rights vector", |
"Data Access Rights vector", |
"General Exception vector", |
"Disabled FP-Register vector", |
"NaT Consumption vector", |
"Speculation vector", |
"Reserved", |
"Debug vector", |
"Unaligned Reference vector", |
"Unsupported Data Reference vector", |
"Floating-point Fault vector", |
"Floating-point Trap vector", |
"Lower-Privilege Transfer Trap vector", |
"Taken Branch Trap vector", |
"Single Step Trap vector", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"Reserved", |
"IA-32 Exception vector", |
"IA-32 Intercept vector", |
"IA-32 Interrupt vector", |
"Reserved", |
"Reserved", |
"Reserved" |
}; |
|
static char *vector_to_string(uint16_t vector); |
static void dump_interrupted_context(istate_t *istate); |
|
char *vector_to_string(uint16_t vector) |
{ |
ASSERT(vector <= VECTOR_MAX); |
|
if (vector >= VECTORS_16_BUNDLE_START) |
return vector_names_16_bundle[(vector - |
VECTORS_16_BUNDLE_START) / (16 * BUNDLE_SIZE)]; |
else |
return vector_names_64_bundle[vector / (64 * BUNDLE_SIZE)]; |
} |
|
void dump_interrupted_context(istate_t *istate) |
{ |
char *ifa, *iipa, *iip; |
|
ifa = get_symtab_entry(istate->cr_ifa); |
iipa = get_symtab_entry(istate->cr_iipa); |
iip = get_symtab_entry(istate->cr_iip); |
|
putchar('\n'); |
printf("Interrupted context dump:\n"); |
printf("ar.bsp=%p\tar.bspstore=%p\n", istate->ar_bsp, |
istate->ar_bspstore); |
printf("ar.rnat=%#018llx\tar.rsc=%#018llx\n", istate->ar_rnat, |
istate->ar_rsc); |
printf("ar.ifs=%#018llx\tar.pfs=%#018llx\n", istate->ar_ifs, |
istate->ar_pfs); |
printf("cr.isr=%#018llx\tcr.ipsr=%#018llx\t\n", istate->cr_isr.value, |
istate->cr_ipsr); |
|
printf("cr.iip=%#018llx, #%d\t(%s)\n", istate->cr_iip, |
istate->cr_isr.ei, iip); |
printf("cr.iipa=%#018llx\t(%s)\n", istate->cr_iipa, iipa); |
printf("cr.ifa=%#018llx\t(%s)\n", istate->cr_ifa, ifa); |
} |
|
void general_exception(uint64_t vector, istate_t *istate) |
{ |
char *desc = ""; |
|
switch (istate->cr_isr.ge_code) { |
case GE_ILLEGALOP: |
desc = "Illegal Operation fault"; |
break; |
case GE_PRIVOP: |
desc = "Privileged Operation fault"; |
break; |
case GE_PRIVREG: |
desc = "Privileged Register fault"; |
break; |
case GE_RESREGFLD: |
desc = "Reserved Register/Field fault"; |
break; |
case GE_DISBLDISTRAN: |
desc = "Disabled Instruction Set Transition fault"; |
break; |
case GE_ILLEGALDEP: |
desc = "Illegal Dependency fault"; |
break; |
default: |
desc = "unknown"; |
break; |
} |
|
fault_if_from_uspace(istate, "General Exception (%s).", desc); |
|
dump_interrupted_context(istate); |
panic("General Exception (%s).", desc); |
} |
|
void disabled_fp_register(uint64_t vector, istate_t *istate) |
{ |
#ifdef CONFIG_FPU_LAZY |
scheduler_fpu_lazy_request(); |
#else |
fault_if_from_uspace(istate, "Interruption: %#hx (%s).", |
(uint16_t) vector, vector_to_string(vector)); |
dump_interrupted_context(istate); |
panic("Interruption: %#hx (%s).", (uint16_t) vector, |
vector_to_string(vector)); |
#endif |
} |
|
void nop_handler(uint64_t vector, istate_t *istate) |
{ |
} |
|
/** Handle syscall. */ |
int break_instruction(uint64_t vector, istate_t *istate) |
{ |
/* |
* Move to next instruction after BREAK. |
*/ |
if (istate->cr_ipsr.ri == 2) { |
istate->cr_ipsr.ri = 0; |
istate->cr_iip += 16; |
} else { |
istate->cr_ipsr.ri++; |
} |
|
return syscall_handler(istate->in0, istate->in1, istate->in2, |
istate->in3, istate->in4, istate->in5, istate->in6); |
} |
|
void universal_handler(uint64_t vector, istate_t *istate) |
{ |
fault_if_from_uspace(istate, "Interruption: %#hx (%s).", |
(uint16_t) vector, vector_to_string(vector)); |
dump_interrupted_context(istate); |
panic("Interruption: %#hx (%s).", (uint16_t) vector, |
vector_to_string(vector)); |
} |
|
static void end_of_local_irq(void) |
{ |
asm volatile ("mov cr.eoi=r0;;"); |
} |
|
|
void external_interrupt(uint64_t vector, istate_t *istate) |
{ |
cr_ivr_t ivr; |
irq_t *irq; |
|
ivr.value = ivr_read(); |
srlz_d(); |
|
switch (ivr.vector) { |
case INTERRUPT_SPURIOUS: |
#ifdef CONFIG_DEBUG |
printf("cpu%d: spurious interrupt\n", CPU->id); |
#endif |
break; |
|
#ifdef CONFIG_SMP |
case VECTOR_TLB_SHOOTDOWN_IPI: |
tlb_shootdown_ipi_recv(); |
end_of_local_irq(); |
break; |
#endif |
|
case INTERRUPT_TIMER: |
irq = irq_dispatch_and_lock(ivr.vector); |
if (irq) { |
irq->handler(irq, irq->arg); |
spinlock_unlock(&irq->lock); |
} else { |
panic("Unhandled Internal Timer Interrupt (%d).", |
ivr.vector); |
} |
break; |
default: |
irq = irq_dispatch_and_lock(ivr.vector); |
if (irq) { |
/* |
* The IRQ handler was found. |
*/ |
if (irq->preack) { |
/* Send EOI before processing the interrupt */ |
end_of_local_irq(); |
} |
irq->handler(irq, irq->arg); |
if (!irq->preack) |
end_of_local_irq(); |
spinlock_unlock(&irq->lock); |
} else { |
/* |
* Unhandled interrupt. |
*/ |
end_of_local_irq(); |
#ifdef CONFIG_DEBUG |
printf("\nUnhandled External Interrupt Vector %d\n", |
ivr.vector); |
#endif |
} |
break; |
} |
} |
|
/** @} |
*/ |