void pcibr_target_interrupt(struct sn_irq_info *sn_irq_info)
{
struct pcidev_info *pcidev_info;
struct pcibus_info *pcibus_info;
int bit = sn_irq_info->irq_int_bit;
u64 xtalk_addr = sn_irq_info->irq_xtalkaddr;
pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
if (pcidev_info) {
pcibus_info =
(struct pcibus_info *)pcidev_info->pdi_host_pcidev_info->
pdi_pcibus_info;
/* Disable the device's IRQ */
pcireg_intr_enable_bit_clr(pcibus_info, (1 << bit));
/* Change the device's IRQ */
pcireg_intr_addr_addr_set(pcibus_info, bit, xtalk_addr);
/* Re-enable the device's IRQ */
pcireg_intr_enable_bit_set(pcibus_info, (1 << bit));
pcibr_force_interrupt(sn_irq_info);
}
}
static void
force_interrupt(int irq) {
struct pcibr_intr_list_t *p = pcibr_intr_list[irq];
while (p) {
if (p->intr) {
pcibr_force_interrupt(p->intr);
}
p = p->next;
}
}
void
force_polled_int(void) {
int i;
struct pcibr_intr_list_t *p;
for (i=0; i<NR_IRQS;i++) {
p = pcibr_intr_list[i];
while (p) {
if (p->intr){
pcibr_force_interrupt(p->intr);
}
p = p->next;
}
}
}
static void
sn_check_intr(int irq, pcibr_intr_t intr) {
unsigned long regval;
int irr_reg_num;
int irr_bit;
unsigned long irr_reg;
regval = intr->bi_soft->bs_base->p_int_status_64;
irr_reg_num = irq_to_vector(irq) / 64;
irr_bit = irq_to_vector(irq) % 64;
switch (irr_reg_num) {
case 0:
irr_reg = ia64_get_irr0();
break;
case 1:
irr_reg = ia64_get_irr1();
break;
case 2:
irr_reg = ia64_get_irr2();
break;
case 3:
irr_reg = ia64_get_irr3();
break;
}
if (!test_bit(irr_bit, &irr_reg) ) {
if (!test_bit(irq, pda.sn_soft_irr) ) {
if (!test_bit(irq, pda.sn_in_service_ivecs) ) {
regval &= 0xff;
if (intr->bi_ibits & regval & intr->bi_last_intr) {
regval &= ~(intr->bi_ibits & regval);
pcibr_force_interrupt(intr);
}
}
}
}
intr->bi_last_intr = regval;
}
