34,13 → 34,12 |
*/ |
|
#include <arch/exception.h> |
#include <arch/debug/print.h> |
#include <arch/memstr.h> |
#include <arch/regutils.h> |
#include <interrupt.h> |
#include <arch/machine.h> |
#include <arch/mm/page_fault.h> |
#include <arch/barrier.h> |
#include <arch/drivers/gxemul.h> |
#include <print.h> |
#include <syscall/syscall.h> |
|
260,7 → 259,10 |
/** Low-level Prefetch Abort Exception handler. */ |
static void prefetch_abort_exception_entry(void) |
{ |
asm("sub lr, lr, #4"); |
asm volatile ( |
"sub lr, lr, #4" |
); |
|
PROCESS_EXCEPTION(EXC_PREFETCH_ABORT); |
} |
|
267,7 → 269,10 |
/** Low-level Data Abort Exception handler. */ |
static void data_abort_exception_entry(void) |
{ |
asm("sub lr, lr, #8"); |
asm volatile ( |
"sub lr, lr, #8" |
); |
|
PROCESS_EXCEPTION(EXC_DATA_ABORT); |
} |
|
279,7 → 284,10 |
*/ |
static void irq_exception_entry(void) |
{ |
asm("sub lr, lr, #4"); |
asm volatile ( |
"sub lr, lr, #4" |
); |
|
setup_stack_and_save_regs(); |
|
switch_to_irq_servicing_mode(); |
299,6 → 307,12 |
istate->r3, istate->r4, istate->r5, istate->r6); |
} |
|
/** Returns the mask of active interrupts. */ |
static inline uint32_t gxemul_irqc_get_sources(void) |
{ |
return *((uint32_t *) gxemul_irqc); |
} |
|
/** Interrupt Exception handler. |
* |
* Determines the sources of interrupt and calls their handlers. |
305,8 → 319,24 |
*/ |
static void irq_exception(int exc_no, istate_t *istate) |
{ |
machine_irq_exception(exc_no, istate); |
uint32_t sources = gxemul_irqc_get_sources(); |
unsigned int i; |
|
for (i = 0; i < GXEMUL_IRQC_MAX_IRQ; i++) { |
if (sources & (1 << i)) { |
irq_t *irq = irq_dispatch_and_lock(i); |
if (irq) { |
/* The IRQ handler was found. */ |
irq->handler(irq); |
spinlock_unlock(&irq->lock); |
} else { |
/* Spurious interrupt.*/ |
printf("cpu%d: spurious interrupt (inum=%d)\n", |
CPU->id, i); |
} |
} |
} |
} |
|
/** Fills exception vectors with appropriate exception handlers. */ |
void install_exception_handlers(void) |
379,18 → 409,18 |
*/ |
void print_istate(istate_t *istate) |
{ |
dprintf("istate dump:\n"); |
printf("istate dump:\n"); |
|
dprintf(" r0: %x r1: %x r2: %x r3: %x\n", |
printf(" r0: %x r1: %x r2: %x r3: %x\n", |
istate->r0, istate->r1, istate->r2, istate->r3); |
dprintf(" r4: %x r5: %x r6: %x r7: %x\n", |
printf(" r4: %x r5: %x r6: %x r7: %x\n", |
istate->r4, istate->r5, istate->r6, istate->r7); |
dprintf(" r8: %x r8: %x r10: %x r11: %x\n", |
printf(" r8: %x r8: %x r10: %x r11: %x\n", |
istate->r8, istate->r9, istate->r10, istate->r11); |
dprintf(" r12: %x sp: %x lr: %x spsr: %x\n", |
printf(" r12: %x sp: %x lr: %x spsr: %x\n", |
istate->r12, istate->sp, istate->lr, istate->spsr); |
|
dprintf(" pc: %x\n", istate->pc); |
printf(" pc: %x\n", istate->pc); |
} |
|
/** @} |