diff options
| author | Wei Huang <[email protected]> | 2024-10-02 11:59:51 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2024-10-02 16:23:10 -0500 |
| commit | d2e8a34876ce69b27f450eebfc550ab8e316f752 (patch) | |
| tree | 87ea505c7528d3d51d28ac136ac4f29388909515 /drivers/fpga/fpga-bridge.c | |
| parent | f69767a1ada3ac74be2e1ac0795a05e1d1384eff (diff) | |
PCI/TPH: Add Steering Tag support
Add pcie_tph_get_cpu_st() to allow a caller to retrieve Steering Tags for a
target memory associated with a specific CPU. The ST tag is retrieved by
invoking PCI ACPI "_DSM to Query Cache Locality TPH Features" method
(rev=0x7, func=0xF) of the device's Root Port device.
Add pcie_tph_set_st_entry() to update the device's Steering Tags. The tags
will be written into the device's MSI-X table or the ST table located in
the TPH Extended Capability space.
Co-developed-by: Eric Van Tassell <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Eric Van Tassell <[email protected]>
Signed-off-by: Wei Huang <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Ajit Khaparde <[email protected]>
Reviewed-by: Somnath Kotur <[email protected]>
Reviewed-by: Andy Gospodarek <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions