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authorGavin Shan <shangw@linux.vnet.ibm.com>2012-09-07 22:44:13 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-09-10 09:35:33 +1000
commit66523d9f2d799de901a5ae7bbed6c3f663fb0b00 (patch)
tree604cf7a4ae77ab3d0a9056cc74d94e06cc57d8b4 /arch/powerpc/platforms/pseries/msi.c
parent5b6635294418a954b5f911375b86d3552cf93f36 (diff)
downloadvexpress-lsk-66523d9f2d799de901a5ae7bbed6c3f663fb0b00.tar.gz
powerpc/eeh: Trace error based on PE from beginning
There're 2 conditions to trigger EEH error detection: invalid value returned from reading I/O or config space. On each case, the function eeh_dn_check_failure will be called to initialize EEH event and put it into the poll for further processing. The patch changes the function for a little bit so that the EEH error will be traced based on PE instead of EEH device any more. Also, the function eeh_find_device_pe() has been removed since the eeh device is tracing the PE by struct eeh_dev::pe. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries/msi.c')
-rw-r--r--arch/powerpc/platforms/pseries/msi.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 8bc89e4ecb5..d19f4977c83 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -210,6 +210,7 @@ static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total)
static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)
{
struct device_node *dn;
+ struct eeh_dev *edev;
/* Found our PE and assume 8 at that point. */
@@ -217,7 +218,10 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)
if (!dn)
return NULL;
- dn = eeh_find_device_pe(dn);
+ /* Get the top level device in the PE */
+ edev = of_node_to_eeh_dev(dn);
+ edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list);
+ dn = eeh_dev_to_of_node(edev);
if (!dn)
return NULL;