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author | Bjorn Helgaas <[email protected]> | 2016-09-01 08:52:29 -0500 |
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committer | Bjorn Helgaas <[email protected]> | 2016-09-01 08:52:29 -0500 |
commit | 6af7e4f77259ee946103387372cb159f2e99a6d4 (patch) | |
tree | bd17c2d31bbb2bbabfb85a564bcb8ed9807d7ba6 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
parent | 21c80c9fefc3db10b530a96eb0478c29eb28bf77 (diff) |
PCI: Mark Haswell Power Control Unit as having non-compliant BARs
The Haswell Power Control Unit has a non-PCI register (CONFIG_TDP_NOMINAL)
where BAR 0 is supposed to be. This is erratum HSE43 in the spec update
referenced below:
The PCIe* Base Specification indicates that Configuration Space Headers
have a base address register at offset 0x10. Due to this erratum, the
Power Control Unit's CONFIG_TDP_NOMINAL CSR (Bus 1; Device 30; Function
3; Offset 0x10) is located where a base register is expected.
Mark the PCU as having non-compliant BARs so we don't try to probe any of
them. There are no other BARs on this device.
Rename the quirk so it's not Broadwell-specific.
Link: http://www.intel.com/content/www/us/en/processors/xeon/xeon-e5-v3-spec-update.html
Link: http://www.intel.com/content/www/us/en/processors/xeon/xeon-e5-v3-datasheet-vol-2.html (section 5.4, Device 30 Function 3)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=153881
Reported-by: Paul Menzel <[email protected]>
Tested-by: Prarit Bhargava <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Myron Stowe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions