aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/parisc/iosapic.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/parisc/iosapic.c')
-rw-r--r--drivers/parisc/iosapic.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index a39fbfef789a..19657efa8dc3 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -700,6 +700,28 @@ static unsigned int iosapic_startup_irq(unsigned int irq)
700 return 0; 700 return 0;
701} 701}
702 702
703#ifdef CONFIG_SMP
704static void iosapic_set_affinity_irq(unsigned int irq, cpumask_t dest)
705{
706 struct vector_info *vi = iosapic_get_vector(irq);
707 u32 d0, d1, dummy_d0;
708 unsigned long flags;
709
710 if (cpu_check_affinity(irq, &dest))
711 return;
712
713 vi->txn_addr = txn_affinity_addr(irq, first_cpu(dest));
714
715 spin_lock_irqsave(&iosapic_lock, flags);
716 /* d1 contains the destination CPU, so only want to set that
717 * entry */
718 iosapic_rd_irt_entry(vi, &d0, &d1);
719 iosapic_set_irt_data(vi, &dummy_d0, &d1);
720 iosapic_wr_irt_entry(vi, d0, d1);
721 spin_unlock_irqrestore(&iosapic_lock, flags);
722}
723#endif
724
703static struct hw_interrupt_type iosapic_interrupt_type = { 725static struct hw_interrupt_type iosapic_interrupt_type = {
704 .typename = "IO-SAPIC-level", 726 .typename = "IO-SAPIC-level",
705 .startup = iosapic_startup_irq, 727 .startup = iosapic_startup_irq,
@@ -708,7 +730,9 @@ static struct hw_interrupt_type iosapic_interrupt_type = {
708 .disable = iosapic_disable_irq, 730 .disable = iosapic_disable_irq,
709 .ack = no_ack_irq, 731 .ack = no_ack_irq,
710 .end = iosapic_end_irq, 732 .end = iosapic_end_irq,
711// .set_affinity = iosapic_set_affinity_irq, 733#ifdef CONFIG_SMP
734 .set_affinity = iosapic_set_affinity_irq,
735#endif
712}; 736};
713 737
714int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev) 738int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)