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-rw-r--r--arch/powerpc/platforms/powernv/opal-wrappers.S1
-rw-r--r--arch/powerpc/platforms/powernv/pci-ioda.c38
-rw-r--r--arch/powerpc/platforms/powernv/pci-p5ioc2.c4
-rw-r--r--arch/powerpc/platforms/powernv/pci.c2
-rw-r--r--arch/powerpc/platforms/powernv/pci.h8
5 files changed, 46 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 3bb07e5e43c..6fabe92eafb 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -107,3 +107,4 @@ OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR);
OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS);
OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS);
OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED);
+OPAL_CALL(opal_pci_msi_eoi, OPAL_PCI_MSI_EOI);
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 3d4e9588a69..3f88c51cb95 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -31,6 +31,7 @@
#include <asm/opal.h>
#include <asm/iommu.h>
#include <asm/tce.h>
+#include <asm/xics.h>
#include "powernv.h"
#include "pci.h"
@@ -589,11 +590,27 @@ static void pnv_ioda_setup_dma(struct pnv_phb *phb)
}
#ifdef CONFIG_PCI_MSI
+static void pnv_ioda2_msi_eoi(struct irq_data *d)
+{
+ unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d);
+ struct irq_chip *chip = irq_data_get_irq_chip(d);
+ struct pnv_phb *phb = container_of(chip, struct pnv_phb,
+ ioda.irq_chip);
+ int64_t rc;
+
+ rc = opal_pci_msi_eoi(phb->opal_id, hw_irq);
+ WARN_ON_ONCE(rc);
+
+ icp_native_eoi(d);
+}
+
static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
- unsigned int hwirq, unsigned int is_64,
- struct msi_msg *msg)
+ unsigned int hwirq, unsigned int virq,
+ unsigned int is_64, struct msi_msg *msg)
{
struct pnv_ioda_pe *pe = pnv_ioda_get_pe(dev);
+ struct irq_data *idata;
+ struct irq_chip *ichip;
unsigned int xive_num = hwirq - phb->msi_base;
uint64_t addr64;
uint32_t addr32, data;
@@ -638,6 +655,23 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
}
msg->data = data;
+ /*
+ * Change the IRQ chip for the MSI interrupts on PHB3.
+ * The corresponding IRQ chip should be populated for
+ * the first time.
+ */
+ if (phb->type == PNV_PHB_IODA2) {
+ if (!phb->ioda.irq_chip_init) {
+ idata = irq_get_irq_data(virq);
+ ichip = irq_data_get_irq_chip(idata);
+ phb->ioda.irq_chip_init = 1;
+ phb->ioda.irq_chip = *ichip;
+ phb->ioda.irq_chip.irq_eoi = pnv_ioda2_msi_eoi;
+ }
+
+ irq_set_chip(virq, &phb->ioda.irq_chip);
+ }
+
pr_devel("%s: %s-bit MSI on hwirq %x (xive #%d),"
" address=%x_%08x data=%x PE# %d\n",
pci_name(dev), is_64 ? "64" : "32", hwirq, xive_num,
diff --git a/arch/powerpc/platforms/powernv/pci-p5ioc2.c b/arch/powerpc/platforms/powernv/pci-p5ioc2.c
index d5c066ea7d1..92b37a0186c 100644
--- a/arch/powerpc/platforms/powernv/pci-p5ioc2.c
+++ b/arch/powerpc/platforms/powernv/pci-p5ioc2.c
@@ -42,8 +42,8 @@
#ifdef CONFIG_PCI_MSI
static int pnv_pci_p5ioc2_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
- unsigned int hwirq, unsigned int is_64,
- struct msi_msg *msg)
+ unsigned int hwirq, unsigned int virq,
+ unsigned int is_64, struct msi_msg *msg)
{
if (WARN_ON(!is_64))
return -ENXIO;
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index a11b5a60c91..861e185483f 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -84,7 +84,7 @@ static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
return -ENOMEM;
}
rc = phb->msi_setup(phb, pdev, phb->msi_base + hwirq,
- entry->msi_attrib.is_64, &msg);
+ virq, entry->msi_attrib.is_64, &msg);
if (rc) {
pr_warn("%s: Failed to setup MSI\n", pci_name(pdev));
irq_dispose_mapping(virq);
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index f6314d65c4d..3c552b3dd0c 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -79,8 +79,8 @@ struct pnv_phb {
struct msi_bitmap msi_bmp;
#endif
int (*msi_setup)(struct pnv_phb *phb, struct pci_dev *dev,
- unsigned int hwirq, unsigned int is_64,
- struct msi_msg *msg);
+ unsigned int hwirq, unsigned int virq,
+ unsigned int is_64, struct msi_msg *msg);
void (*dma_dev_setup)(struct pnv_phb *phb, struct pci_dev *pdev);
void (*fixup_phb)(struct pci_controller *hose);
u32 (*bdfn_to_pe)(struct pnv_phb *phb, struct pci_bus *bus, u32 devfn);
@@ -108,6 +108,10 @@ struct pnv_phb {
unsigned int *io_segmap;
struct pnv_ioda_pe *pe_array;
+ /* IRQ chip */
+ int irq_chip_init;
+ struct irq_chip irq_chip;
+
/* Sorted list of used PE's based
* on the sequence of creation
*/