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authorKuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>2019-09-05 14:31:46 -0500
committerBjorn Helgaas <bhelgaas@google.com>2019-10-15 16:39:10 -0500
commit751035b8dc061ae434c3311bac9cd6d0e5e00f94 (patch)
tree8600149cd20b8c7193ac3ae86d1e59e14c3389be /drivers/pci/probe.c
parentc065190bbcd4fb54ce9c5fd34fcad71acf2a0ea4 (diff)
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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/probe.c')
-rw-r--r--drivers/pci/probe.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index d145165c799c..df2b77866f3b 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2327,6 +2327,9 @@ static void pci_init_capabilities(struct pci_dev *dev)
/* Page Request Interface */
pci_pri_init(dev);
+ /* Process Address Space ID */
+ pci_pasid_init(dev);
+
/* Enable ACS P2P upstream forwarding */
pci_enable_acs(dev);