path: root/arch
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authorLinus Torvalds <torvalds@linux-foundation.org>2013-06-29 17:02:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-06-29 17:02:48 -0700
commit6c355beafdbd0a62add3a3d89825ca87cf8ecec0 (patch)
treeae4c5a79359c2502bd4c1113b11bd9534aed4fc1 /arch
parent8d5bc1a6ac40885078bbb0552b4283a3e58c462e (diff)
parent7846de406f43df98ac9864212dcfe3f2816bdb04 (diff)
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt: "We discovered some breakage in our "EEH" (PCI Error Handling) code while doing error injection, due to a couple of regressions. One of them is due to a patch (37f02195bee9 "powerpc/pci: fix PCI-e devices rescan issue on powerpc platform") that, in hindsight, I shouldn't have merged considering that it caused more problems than it solved. Please pull those two fixes. One for a simple EEH address cache initialization issue. The other one is a patch from Guenter that I had originally planned to put in 3.11 but which happens to also fix that other regression (a kernel oops during EEH error handling and possibly hotplug). With those two, the couple of test machines I've hammered with error injection are remaining up now. EEH appears to still fail to recover on some devices, so there is another problem that Gavin is looking into but at least it's no longer crashing the kernel." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/pci: Improve device hotplug initialization powerpc/eeh: Add eeh_dev to the cache during boot
Diffstat (limited to 'arch')
2 files changed, 14 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index eabeec991016..f46914a0f33e 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -994,7 +994,7 @@ void pcibios_setup_bus_self(struct pci_bus *bus)
-void pcibios_setup_device(struct pci_dev *dev)
+static void pcibios_setup_device(struct pci_dev *dev)
/* Fixup NUMA node as it may not be setup yet by the generic
* code and is needed by the DMA init
@@ -1015,6 +1015,17 @@ void pcibios_setup_device(struct pci_dev *dev)
+int pcibios_add_device(struct pci_dev *dev)
+ /*
+ * We can only call pcibios_setup_device() after bus setup is complete,
+ * since some of the platform specific DMA setup code depends on it.
+ */
+ if (dev->bus->is_added)
+ pcibios_setup_device(dev);
+ return 0;
void pcibios_setup_bus_devices(struct pci_bus *bus)
struct pci_dev *dev;
@@ -1469,10 +1480,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
if (ppc_md.pcibios_enable_device_hook(dev))
return -EINVAL;
- /* avoid pcie irq fix up impact on cardbus */
- if (dev->hdr_type != PCI_HEADER_TYPE_CARDBUS)
- pcibios_setup_device(dev);
return pci_enable_resources(dev, mask);
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index 5a4c87903057..5ce3ba7ad137 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -294,8 +294,6 @@ void __init eeh_addr_cache_build(void)
for_each_pci_dev(dev) {
- eeh_addr_cache_insert_dev(dev);
dn = pci_device_to_OF_node(dev);
if (!dn)
@@ -308,6 +306,8 @@ void __init eeh_addr_cache_build(void)
dev->dev.archdata.edev = edev;
edev->pdev = dev;
+ eeh_addr_cache_insert_dev(dev);