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| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2014-11-25 09:27:00 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-01-23 14:02:52 +1100 |
| commit | 2aa5cf9e48f2f39cc255f8e29964df3ff9ca017b (patch) | |
| tree | f2aaa35edbb58d7e714f76e5163e26ae7edac04f /arch/powerpc/include/asm/swiotlb.h | |
| parent | 6f20e7f2e930211613a66d0603fa4abaaf3ce662 (diff) | |
| download | blackbird-op-linux-2aa5cf9e48f2f39cc255f8e29964df3ff9ca017b.tar.gz blackbird-op-linux-2aa5cf9e48f2f39cc255f8e29964df3ff9ca017b.zip | |
powerpc/eeh: Fix missed PE#0 on P7IOC
PE#0 should be regarded as valid for P7IOC, while it's invalid for
PHB3. The patch adds flag EEH_VALID_PE_ZERO to differentiate those
two cases. Without the patch, we possibly see frozen PE#0 state is
cleared without EEH recovery taken on P7IOC as following kernel logs
indicate:
[root@ltcfbl8eb ~]# dmesg
:
pci 0000:00 : [PE# 000] Secondary bus 0 associated with PE#0
pci 0000:01 : [PE# 001] Secondary bus 1 associated with PE#1
pci 0001:00 : [PE# 000] Secondary bus 0 associated with PE#0
pci 0001:01 : [PE# 001] Secondary bus 1 associated with PE#1
pci 0002:00 : [PE# 000] Secondary bus 0 associated with PE#0
pci 0002:01 : [PE# 001] Secondary bus 1 associated with PE#1
pci 0003:00 : [PE# 000] Secondary bus 0 associated with PE#0
pci 0003:01 : [PE# 001] Secondary bus 1 associated with PE#1
pci 0003:20 : [PE# 002] Secondary bus 32..63 associated with PE#2
:
EEH: Clear non-existing PHB#3-PE#0
EEH: PHB location: U78AE.001.WZS00M9-P1-002
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/swiotlb.h')
0 files changed, 0 insertions, 0 deletions
