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PCI/ASPM: Enable Latency Tolerance Reporting when supported
authorBjorn Helgaas <bhelgaas@google.com>
Tue, 28 Nov 2017 22:43:50 +0000 (16:43 -0600)
committerBjorn Helgaas <bhelgaas@google.com>
Tue, 19 Dec 2017 05:02:56 +0000 (23:02 -0600)
commit85302800cb60aa5826832ab57e6cead4f82a497e
tree484d136f67cb8243a6790c1578a7497561b71311tree | snapshot
parent02cd6eb818bcb6d794194617b2d912af40c0a774commit | diff
PCI/ASPM: Enable Latency Tolerance Reporting when supported

Enable Latency Tolerance Reporting (LTR).  Note that LTR must be enabled in
the Root Port first, and must not be enabled in any downstream device
unless the Root Port and all intermediate Switches also support LTR.
See PCIe r3.1, sec 6.18.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
drivers/pci/probe.c diff | blob | history
include/linux/pci.h diff | blob | history
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