[PATCH v3 5/5] PCI: designware: set up high part of MSI target address

[Lucas Stach <l.stach@pengutronix.de>]

Set up the high part of the MSI target address in order to allow the
MSI target to reside above the 4GB mark on 64bit and PAE systems.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 drivers/pci/host/pcie-designware.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 74034395cf2a..fcb798e47c30 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -299,12 +299,15 @@ no_valid_irq:
 static void dw_msi_setup_msg(struct pcie_port *pp, unsigned int irq, u32 pos)
 {
 	struct msi_msg msg;
+	u64 msi_target;
 
 	if (pp->ops->get_msi_addr)
-		msg.address_lo = pp->ops->get_msi_addr(pp);
+		msi_target = pp->ops->get_msi_addr(pp);
 	else
-		msg.address_lo = virt_to_phys((void *)pp->msi_data);
-	msg.address_hi = 0x0;
+		msi_target = virt_to_phys((void *)pp->msi_data);
+
+	msg.address_lo = (u32)(msi_target & 0xffffffff);
+	msg.address_hi = (u32)(msi_target >> 32 & 0xffffffff);
 
 	if (pp->ops->get_msi_data)
 		msg.data = pp->ops->get_msi_data(pp, pos);
-- 
2.4.6