diff options
| author | Bjorn Helgaas <[email protected]> | 2018-04-17 11:25:51 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2018-04-18 16:10:34 -0500 |
| commit | 9ab105deb60fa76d66cae5548819b4e8703d2056 (patch) | |
| tree | 95102cdf7aa3b3922c740b535a1286ef51376c82 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 60cc43fc888428bb2f18f08997432d426a243338 (diff) | |
PCI/ASPM: Disable ASPM L1.2 Substate if we don't have LTR
When in the ASPM L1.0 state (but not the PCI-PM L1.0 state), the most
recent LTR value and the LTR_L1.2_THRESHOLD determines whether the link
enters the L1.2 substate.
If we don't have LTR enabled, prevent the use of ASPM L1.2.
PCI-PM L1.2 may still be used because it doesn't depend on
LTR_L1.2_THRESHOLD (see PCIe r4.0, sec 5.5.1).
Tested-by: Srinath Mannam <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions