SYS_NIRQ
if (irq < SYS_NIRQ) {
pci_intr_enabled |= (1U << (irq - SYS_NIRQ));
IXPREG(IXPPCI_IRQ_ENABLE_SET) = (1U << (irq - SYS_NIRQ));
if (irq < SYS_NIRQ) {
pci_intr_enabled &= ~(1U << (irq - SYS_NIRQ));
IXPREG(IXPPCI_IRQ_ENABLE_CLEAR) = (1U << (irq - SYS_NIRQ));
for (irq = 0; irq < SYS_NIRQ; irq++) {
for (irq = 0; irq < SYS_NIRQ; irq++) {
if (intrq[irq + SYS_NIRQ].iq_levels & (1U << ipl))
if (irq < SYS_NIRQ) {
pci_irqs = (1U << (irq - SYS_NIRQ));
iq = &intrq[irq + SYS_NIRQ];