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| author | Bjorn Helgaas <bhelgaas@google.com> | 2024-11-25 13:40:55 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-11-25 13:40:55 -0600 |
| commit | ab02bafcecedcd936d9e8526bcf1542642ad2947 (patch) | |
| tree | 9c57b82784dac878302ed43a8293b5b55d2dd75d /drivers/pci/pci.c | |
| parent | efcbd9d3975f03c600f42a018f2453f2957042ad (diff) | |
| parent | 48d0fd2b903e397c2a9621ab35f3d8877f61aee4 (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 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 880f7565acf3..43c9a0e029c9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1828,6 +1828,7 @@ int pci_save_state(struct pci_dev *dev) pci_save_dpc_state(dev); pci_save_aer_state(dev); pci_save_ptm_state(dev); + pci_save_tph_state(dev); return pci_save_vc_state(dev); } EXPORT_SYMBOL(pci_save_state); @@ -1933,6 +1934,7 @@ void pci_restore_state(struct pci_dev *dev) pci_restore_rebar_state(dev); pci_restore_dpc_state(dev); pci_restore_ptm_state(dev); + pci_restore_tph_state(dev); pci_aer_clear_status(dev); pci_restore_aer_state(dev); @@ -6925,6 +6927,8 @@ static int __init pci_setup(char *str) pci_no_domains(); } else if (!strncmp(str, "noari", 5)) { pcie_ari_disabled = true; + } else if (!strncmp(str, "notph", 5)) { + pci_no_tph(); } else if (!strncmp(str, "cbiosize=", 9)) { pci_cardbus_io_size = memparse(str + 9, &str); } else if (!strncmp(str, "cbmemsize=", 10)) { |