diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-ioda.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index e77caa4dbbdf..b498876a976f 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -2169,12 +2169,33 @@ static void pnv_msi_compose_msg(struct irq_data *d, struct msi_msg *msg) entry->msi_attrib.is_64 ? "64" : "32", d->hwirq, rc); } +/* + * The IRQ data is mapped in the MSI domain in which HW IRQ numbers + * correspond to vector numbers. + */ +static void pnv_msi_eoi(struct irq_data *d) +{ + struct pci_controller *hose = irq_data_get_irq_chip_data(d); + struct pnv_phb *phb = hose->private_data; + + if (phb->model == PNV_PHB_MODEL_PHB3) { + /* + * The EOI OPAL call takes an OPAL HW IRQ number but + * since it is translated into a vector number in + * OPAL, use that directly. + */ + WARN_ON_ONCE(opal_pci_msi_eoi(phb->opal_id, d->hwirq)); + } + + irq_chip_eoi_parent(d); +} + static struct irq_chip pnv_msi_irq_chip = { .name = "PNV-MSI", .irq_shutdown = pnv_msi_shutdown, .irq_mask = irq_chip_mask_parent, .irq_unmask = irq_chip_unmask_parent, - .irq_eoi = irq_chip_eoi_parent, + .irq_eoi = pnv_msi_eoi, .irq_set_affinity = irq_chip_set_affinity_parent, .irq_compose_msi_msg = pnv_msi_compose_msg, }; |