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| author | Wei Huang <wei.huang2@amd.com> | 2024-10-02 19:59:51 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-10-03 00:23:10 +0300 |
| commit | d2e8a34876ce69b27f450eebfc550ab8e316f752 (patch) | |
| tree | 87ea505c7528d3d51d28ac136ac4f29388909515 /tools/perf/scripts/python/task-analyzer.py | |
| parent | f69767a1ada3ac74be2e1ac0795a05e1d1384eff (diff) | |
| download | linux-d2e8a34876ce69b27f450eebfc550ab8e316f752.tar.xz | |
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 <Eric.VanTassell@amd.com>
Link: https://lore.kernel.org/r/20241002165954.128085-3-wei.huang2@amd.com
Signed-off-by: Eric Van Tassell <Eric.VanTassell@amd.com>
Signed-off-by: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions