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Diffstat (limited to 'arch/ia64/sn/pci')
-rw-r--r--arch/ia64/sn/pci/pcibr/pcibr_provider.c5
-rw-r--r--arch/ia64/sn/pci/tioca_provider.c3
-rw-r--r--arch/ia64/sn/pci/tioce_provider.c40
3 files changed, 44 insertions, 4 deletions
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 5862a709adf5..7b03b8084ffc 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -198,7 +198,7 @@ void pcibr_force_interrupt(struct sn_irq_info *sn_irq_info)
}
}
-void pcibr_change_devices_irq(struct sn_irq_info *sn_irq_info)
+void pcibr_target_interrupt(struct sn_irq_info *sn_irq_info)
{
struct pcidev_info *pcidev_info;
struct pcibus_info *pcibus_info;
@@ -233,7 +233,8 @@ struct sn_pcibus_provider pcibr_provider = {
.dma_map_consistent = pcibr_dma_map_consistent,
.dma_unmap = pcibr_dma_unmap,
.bus_fixup = pcibr_bus_fixup,
- .force_interrupt = pcibr_force_interrupt
+ .force_interrupt = pcibr_force_interrupt,
+ .target_interrupt = pcibr_target_interrupt
};
int
diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c
index 4ea04cfa30ff..ea09c12f0258 100644
--- a/arch/ia64/sn/pci/tioca_provider.c
+++ b/arch/ia64/sn/pci/tioca_provider.c
@@ -657,7 +657,8 @@ static struct sn_pcibus_provider tioca_pci_interfaces = {
.dma_map_consistent = tioca_dma_map,
.dma_unmap = tioca_dma_unmap,
.bus_fixup = tioca_bus_fixup,
- .force_interrupt = NULL
+ .force_interrupt = NULL,
+ .target_interrupt = NULL
};
/**
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index d9081369cf96..8e75db2b825d 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -669,6 +669,43 @@ tioce_force_interrupt(struct sn_irq_info *sn_irq_info)
}
/**
+ * tioce_target_interrupt - implement set_irq_affinity for tioce resident
+ * functions. Note: only applies to line interrupts, not MSI's.
+ *
+ * @sn_irq_info: SN IRQ context
+ *
+ * Given an sn_irq_info, set the associated CE device's interrupt destination
+ * register. Since the interrupt destination registers are on a per-ce-slot
+ * basis, this will retarget line interrupts for all functions downstream of
+ * the slot.
+ */
+static void
+tioce_target_interrupt(struct sn_irq_info *sn_irq_info)
+{
+ struct pcidev_info *pcidev_info;
+ struct tioce_common *ce_common;
+ struct tioce *ce_mmr;
+ int bit;
+
+ pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
+ if (!pcidev_info)
+ return;
+
+ ce_common = (struct tioce_common *)pcidev_info->pdi_pcibus_info;
+ ce_mmr = (struct tioce *)ce_common->ce_pcibus.bs_base;
+
+ bit = sn_irq_info->irq_int_bit;
+
+ ce_mmr->ce_adm_int_mask |= (1UL << bit);
+ ce_mmr->ce_adm_int_dest[bit] =
+ ((uint64_t)sn_irq_info->irq_irq << INTR_VECTOR_SHFT) |
+ sn_irq_info->irq_xtalkaddr;
+ ce_mmr->ce_adm_int_mask &= ~(1UL << bit);
+
+ tioce_force_interrupt(sn_irq_info);
+}
+
+/**
* tioce_bus_fixup - perform final PCI fixup for a TIO CE bus
* @prom_bussoft: Common prom/kernel struct representing the bus
*
@@ -719,7 +756,8 @@ static struct sn_pcibus_provider tioce_pci_interfaces = {
.dma_map_consistent = tioce_dma_consistent,
.dma_unmap = tioce_dma_unmap,
.bus_fixup = tioce_bus_fixup,
- .force_interrupt = tioce_force_interrupt
+ .force_interrupt = tioce_force_interrupt,
+ .target_interrupt = tioce_target_interrupt
};
/**