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authorBjorn Helgaas <bhelgaas@google.com>2024-11-25 13:40:55 -0600
committerBjorn Helgaas <bhelgaas@google.com>2024-11-25 13:40:55 -0600
commitab02bafcecedcd936d9e8526bcf1542642ad2947 (patch)
tree9c57b82784dac878302ed43a8293b5b55d2dd75d /Documentation/admin-guide/kernel-parameters.txt
parentefcbd9d3975f03c600f42a018f2453f2957042ad (diff)
parent48d0fd2b903e397c2a9621ab35f3d8877f61aee4 (diff)
Merge branch 'pci/tph'
- Add and document TLP Processing Hints (TPH) support so drivers can enable and disable TPH and the kernel can save/restore TPH configuration (Wei Huang) - Add TPH Steering Tag support so drivers can retrieve Steering Tag values associated with specific CPUs via an ACPI _DSM to direct DMA writes closer to their consumers (Wei Huang) * pci/tph: PCI/TPH: Add TPH documentation PCI/TPH: Add Steering Tag support PCI: Add TLP Processing Hints (TPH) support
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 1518343bbe22..178995b07451 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4678,6 +4678,10 @@
nomio [S390] Do not use MIO instructions.
norid [S390] ignore the RID field and force use of
one PCI domain per PCI function
+ notph [PCIE] If the PCIE_TPH kernel config parameter
+ is enabled, this kernel boot option can be used
+ to disable PCIe TLP Processing Hints support
+ system-wide.
pcie_aspm= [PCIE] Forcibly enable or ignore PCIe Active State Power
Management.