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authorKuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>2019-09-05 14:31:45 -0500
committerBjorn Helgaas <bhelgaas@google.com>2019-10-15 16:39:09 -0500
commitc065190bbcd4fb54ce9c5fd34fcad71acf2a0ea4 (patch)
tree028ddd64500970c58eebf7a51f1d25b4014f7183 /drivers/pci/probe.c
parent3ad62192097443e8c3a8e244475bacaecb894d4e (diff)
downloadlinux-c065190bbcd4fb54ce9c5fd34fcad71acf2a0ea4.tar.bz2
PCI/ATS: Cache PRI Capability offset
Previously each PRI interface searched for the PRI 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_pri_init() from pci_init_capabilities()] Link: https://lore.kernel.org/r/0c5495d376faf6dbb8eb2165204c474438aaae65.156 7029860.git.sathyanarayanan.kuppuswamy@linux.intel.com Link: https://lore.kernel.org/r/20190905193146.90250-5-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 3d5271a7a849..d145165c799c 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2324,6 +2324,9 @@ static void pci_init_capabilities(struct pci_dev *dev)
/* Address Translation Services */
pci_ats_init(dev);
+ /* Page Request Interface */
+ pci_pri_init(dev);
+
/* Enable ACS P2P upstream forwarding */
pci_enable_acs(dev);