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| author | Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> | 2019-09-05 14:31:46 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-10-15 16:39:10 -0500 |
| commit | 751035b8dc061ae434c3311bac9cd6d0e5e00f94 (patch) | |
| tree | 8600149cd20b8c7193ac3ae86d1e59e14c3389be /drivers/pci/pci.h | |
| parent | c065190bbcd4fb54ce9c5fd34fcad71acf2a0ea4 (diff) | |
| download | lwn-751035b8dc061ae434c3311bac9cd6d0e5e00f94.tar.gz lwn-751035b8dc061ae434c3311bac9cd6d0e5e00f94.zip | |
PCI/ATS: Cache PASID Capability offset
Previously each PASID interface searched for the PASID Capability. Cache
the capability offset the first time we use it instead of searching each
time.
[bhelgaas: commit log, reorder patch to later, call pci_pasid_init() from
pci_init_capabilities()]
Link: https://lore.kernel.org/r/4957778959fa34eab3e8b3065d1951989c61cb0f.1567029860.git.sathyanarayanan.kuppuswamy@linux.intel.com
Link: https://lore.kernel.org/r/20190905193146.90250-6-helgaas@kernel.org
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index aa08cd35bf87..ae84d28ba03a 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -462,6 +462,12 @@ void pci_pri_init(struct pci_dev *dev); static inline void pci_pri_init(struct pci_dev *dev) { } #endif +#ifdef CONFIG_PCI_PASID +void pci_pasid_init(struct pci_dev *dev); +#else +static inline void pci_pasid_init(struct pci_dev *dev) { } +#endif + #ifdef CONFIG_PCI_IOV int pci_iov_init(struct pci_dev *dev); void pci_iov_release(struct pci_dev *dev); |