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| H A D | ats.c | diff 9b41d19a Wed Jul 29 14:12:19 MDT 2020 Krzysztof Kozlowski <krzk@kernel.org> PCI: Fix kerneldoc warnings Fix kerneldoc warnings, e.g., $ make W=1 drivers/pci/ drivers/pci/ats.c:196: warning: Function parameter or member 'pdev' not described in 'pci_enable_pri' drivers/pci/ats.c:196: warning: Function parameter or member 'reqs' not described in 'pci_enable_pri' ... Link: https://lore.kernel.org/r/20200729201224.26799-2-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-3-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-4-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-5-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-6-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-7-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> diff 9bf49e36 Thu Sep 05 13:31:42 MDT 2019 Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> PCI/ATS: Handle sharing of PF PRI Capability with all VFs Per PCIe r5.0, sec 9.3.7.11, VFs must not implement the PRI Capability. If the PF implements PRI, it is shared by the VFs. Since VFs don't have a PRI Capability, pci_enable_pri() always failed, which caused IOMMU setup to fail. Update the PRI interfaces so for VFs they reflect the state of the PF PRI. [bhelgaas: rebase without pri_cap caching, commit log] Suggested-by: Ashok Raj <ashok.raj@intel.com> Link: https://lore.kernel.org/r/b971e31f8695980da8e4a7f93e3b6a3edba3edaa.1567029860.git.sathyanarayanan.kuppuswamy@linux.intel.com Link: https://lore.kernel.org/r/20190905193146.90250-2-helgaas@kernel.org Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Keith Busch <keith.busch@intel.com> diff 9bf49e36 Thu Sep 05 13:31:42 MDT 2019 Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> PCI/ATS: Handle sharing of PF PRI Capability with all VFs Per PCIe r5.0, sec 9.3.7.11, VFs must not implement the PRI Capability. If the PF implements PRI, it is shared by the VFs. Since VFs don't have a PRI Capability, pci_enable_pri() always failed, which caused IOMMU setup to fail. Update the PRI interfaces so for VFs they reflect the state of the PF PRI. [bhelgaas: rebase without pri_cap caching, commit log] Suggested-by: Ashok Raj <ashok.raj@intel.com> Link: https://lore.kernel.org/r/b971e31f8695980da8e4a7f93e3b6a3edba3edaa.1567029860.git.sathyanarayanan.kuppuswamy@linux.intel.com Link: https://lore.kernel.org/r/20190905193146.90250-2-helgaas@kernel.org Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Keith Busch <keith.busch@intel.com> |
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