diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> | 2026-01-02 21:04:48 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-02-06 16:54:12 -0600 |
| commit | 8f05a5f6745ccc9ff784736608c5a38edb09acc8 (patch) | |
| tree | 4603224c1d525af9c9371470c25244a7bf492845 /include/linux | |
| parent | c41e2fb67e26b04d919257875fa954aa5f6e392e (diff) | |
PCI: Cache ACS Capabilities register
The ACS Capability register is read-only. Cache it to allow quirks to
override it and to avoid re-reading it.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Link: https://patch.msgid.link/20260102-pci_acs-v3-2-72280b94d288@oss.qualcomm.com
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 864775651c6f..6195e040b29c 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -558,6 +558,7 @@ struct pci_dev { struct pci_tsm *tsm; /* TSM operation state */ #endif u16 acs_cap; /* ACS Capability offset */ + u16 acs_capabilities; /* ACS Capabilities */ u8 supported_speeds; /* Supported Link Speeds Vector */ phys_addr_t rom; /* Physical address if not from BAR */ size_t romlen; /* Length if not from BAR */ |