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authorGavin Shan <shangw@linux.vnet.ibm.com>2012-03-20 21:30:27 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-03-28 11:31:57 +1100
commit2a0352fa4a78081c76be1e450b51a6aa27c92616 (patch)
treecacc28c7f6058cdc5bbf3d940917ca06ef1df84e /arch/powerpc
parente22057c8599373e5caef0bc42bdb95d2a361ab0d (diff)
downloadop-kernel-dev-2a0352fa4a78081c76be1e450b51a6aa27c92616.zip
op-kernel-dev-2a0352fa4a78081c76be1e450b51a6aa27c92616.tar.gz
powerpc/eeh: Remove eeh device from OF node
Originally, the PCI sensitive OF node is tracing the eeh device through struct device_node->edev. However, it was regarded as bad idea. The patch removes struct device_node->edev and uses PCI_DN to trace the corresponding eeh device according to BenH's comments. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/pci-bridge.h8
-rw-r--r--arch/powerpc/platforms/pseries/eeh_dev.c2
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 5d48765..21f99ae 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -155,6 +155,7 @@ struct pci_dn {
struct pci_dev *pcidev; /* back-pointer to the pci device */
#ifdef CONFIG_EEH
+ struct eeh_dev *edev; /* eeh device */
int class_code; /* pci device class */
int eeh_mode; /* See eeh.h for possible EEH_MODEs */
int eeh_config_addr;
@@ -185,6 +186,13 @@ static inline int pci_device_from_OF_node(struct device_node *np,
return 0;
}
+#if defined(CONFIG_EEH)
+static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn)
+{
+ return PCI_DN(dn)->edev;
+}
+#endif
+
/** Find the bus corresponding to the indicated device node */
extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn);
diff --git a/arch/powerpc/platforms/pseries/eeh_dev.c b/arch/powerpc/platforms/pseries/eeh_dev.c
index f3aed7d..c4507d0 100644
--- a/arch/powerpc/platforms/pseries/eeh_dev.c
+++ b/arch/powerpc/platforms/pseries/eeh_dev.c
@@ -62,7 +62,7 @@ void * __devinit eeh_dev_init(struct device_node *dn, void *data)
}
/* Associate EEH device with OF node */
- dn->edev = edev;
+ PCI_DN(dn)->edev = edev;
edev->dn = dn;
edev->phb = phb;
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