| 39,7 → 39,7 |
|---|
| #include <interrupt.h> |
| #include <arch/mm/page_fault.h> |
| #include <arch/barrier.h> |
| #include <arch/drivers/gxemul.h> |
| #include <arch/machine.h> |
| #include <print.h> |
| #include <syscall/syscall.h> |
| |
| 100,7 → 100,7 |
|---|
| "mov r2, lr\n" |
| "stmfd r13!, {r4-r12}\n" |
| "mov r1, r13\n" |
| |
| |
| /* the following two lines are for debugging */ |
| "mov sp, #0\n" |
| "mov lr, #0\n" |
| 152,7 → 152,7 |
|---|
| |
| /* actual return */ |
| "2:\n" |
| "ldmfd r13, {r0-r12, pc}^\n" |
| "ldmfd r13!, {r0-r12, pc}^\n" |
| ); |
| } |
| |
| 307,37 → 307,6 |
|---|
| 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. |
| */ |
| static void irq_exception(int exc_no, istate_t *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) |
| { |
| 384,6 → 353,15 |
|---|
| } |
| #endif |
| |
| /** Interrupt Exception handler. |
| * |
| * Determines the sources of interrupt and calls their handlers. |
| */ |
| static void irq_exception(int exc_no, istate_t *istate) |
| { |
| machine_irq_exception(exc_no, istate); |
| } |
| |
| /** Initializes exception handling. |
| * |
| * Installs low-level exception handlers and then registers |