51,9 → 51,17 |
#include <synch/spinlock.h> |
#include <arch/ddi/ddi.h> |
#include <interrupt.h> |
#include <ipc/irq.h> |
#include <ddi/irq.h> |
|
void print_info_errcode(int n, istate_t *istate) |
/* |
* Interrupt and exception dispatching. |
*/ |
|
void (* disable_irqs_function)(uint16_t irqmask) = NULL; |
void (* enable_irqs_function)(uint16_t irqmask) = NULL; |
void (* eoi_function)(void) = NULL; |
|
void decode_istate(int n, istate_t *istate) |
{ |
char *symbol; |
/* uint64_t *x = &istate->stack[0]; */ |
75,23 → 83,24 |
printf("%%rsp=%#llx\n", &istate->stack[0]); |
} |
|
/* |
* Interrupt and exception dispatching. |
*/ |
static void trap_virtual_eoi(void) |
{ |
if (eoi_function) |
eoi_function(); |
else |
panic("no eoi_function\n"); |
|
void (* disable_irqs_function)(uint16_t irqmask) = NULL; |
void (* enable_irqs_function)(uint16_t irqmask) = NULL; |
void (* eoi_function)(void) = NULL; |
} |
|
void null_interrupt(int n, istate_t *istate) |
static void null_interrupt(int n, istate_t *istate) |
{ |
fault_if_from_uspace(istate, "unserviced interrupt: %d", n); |
print_info_errcode(n, istate); |
decode_istate(n, istate); |
panic("unserviced interrupt\n"); |
} |
|
/** General Protection Fault. */ |
void gp_fault(int n, istate_t *istate) |
static void gp_fault(int n, istate_t *istate) |
{ |
if (TASK) { |
count_t ver; |
114,18 → 123,18 |
fault_if_from_uspace(istate, "general protection fault"); |
} |
|
print_info_errcode(n, istate); |
decode_istate(n, istate); |
panic("general protection fault\n"); |
} |
|
void ss_fault(int n, istate_t *istate) |
static void ss_fault(int n, istate_t *istate) |
{ |
fault_if_from_uspace(istate, "stack fault"); |
print_info_errcode(n, istate); |
decode_istate(n, istate); |
panic("stack fault\n"); |
} |
|
void nm_fault(int n, istate_t *istate) |
static void nm_fault(int n, istate_t *istate) |
{ |
#ifdef CONFIG_FPU_LAZY |
scheduler_fpu_lazy_request(); |
135,12 → 144,61 |
#endif |
} |
|
void tlb_shootdown_ipi(int n, istate_t *istate) |
static void tlb_shootdown_ipi(int n, istate_t *istate) |
{ |
trap_virtual_eoi(); |
tlb_shootdown_ipi_recv(); |
} |
|
/** Handler of IRQ exceptions */ |
static void irq_interrupt(int n, istate_t *istate) |
{ |
ASSERT(n >= IVT_IRQBASE); |
|
int inum = n - IVT_IRQBASE; |
ASSERT(inum < IRQ_COUNT); |
ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1)); |
|
irq_t *irq = irq_dispatch_and_lock(inum); |
if (irq) { |
/* |
* The IRQ handler was found. |
*/ |
irq->handler(irq, irq->arg); |
spinlock_unlock(&irq->lock); |
} else { |
/* |
* Spurious interrupt. |
*/ |
#ifdef CONFIG_DEBUG |
printf("cpu%d: spurious interrupt (inum=%d)\n", CPU->id, inum); |
#endif |
} |
trap_virtual_eoi(); |
} |
|
void interrupt_init(void) |
{ |
int i; |
|
for (i = 0; i < IVT_ITEMS; i++) |
exc_register(i, "null", (iroutine) null_interrupt); |
|
for (i = 0; i < IRQ_COUNT; i++) { |
if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1)) |
exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt); |
} |
|
exc_register(7, "nm_fault", (iroutine) nm_fault); |
exc_register(12, "ss_fault", (iroutine) ss_fault); |
exc_register(13, "gp_fault", (iroutine) gp_fault); |
exc_register(14, "ident_mapper", (iroutine) ident_page_fault); |
|
#ifdef CONFIG_SMP |
exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi); |
#endif |
} |
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void trap_virtual_enable_irqs(uint16_t irqmask) |
{ |
if (enable_irqs_function) |
157,14 → 215,5 |
panic("no disable_irqs_function\n"); |
} |
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void trap_virtual_eoi(void) |
{ |
if (eoi_function) |
eoi_function(); |
else |
panic("no eoi_function\n"); |
|
} |
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/** @} |
*/ |