[V7,09/17] powerpc/powernv: mark IOV BAR with IORESOURCE_ARCH

Commit Message

Wei Yang July 24, 2014, 6:22 a.m. UTC

On powernv platform, the IOV BAR size will be adjusted to meet the alignment
requirement from hardware. This leads to the VF resource size need to be
retrieved from hardware directly.

This patch adds this flag for IOV BAR on powernv platform.

Signed-off-by: Wei Yang <[e-mail]>
---
 arch/powerpc/platforms/powernv/pci.c |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Patch

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index b97aa79..cc7c9a6 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -21,6 +21,7 @@ 
 #include <linux/io.h>
 #include <linux/msi.h>
 #include <linux/iommu.h>
+#include <uapi/linux/pci_regs.h>
 
 #include <asm/sections.h>
 #include <asm/io.h>
@@ -876,3 +877,20 @@  static int __init tce_iommu_bus_notifier_init(void)
 }
 
 subsys_initcall_sync(tce_iommu_bus_notifier_init);
+
+static void pnv_sriov_final_fixup(struct pci_dev *dev)
+{
+	struct resource *res;
+	int i;
+
+	if (!dev->is_physfn)
+		return;
+
+	for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
+		res = dev->resource + PCI_IOV_RESOURCES + i;
+		if (!res->flags)
+			continue;
+		res->flags |= IORESOURCE_ARCH;
+	}
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pnv_sriov_final_fixup);