Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v5.15.7 2021-11-18T18:17:01+00:00 2021-11-18T18:17:01+00:00 Kunihiko Hayashi hayashi.kunihiko@socionext.com 2021-09-18T00:22:59+00:00 urn:sha1:402239647cb34cea8bc1faaf47fe191c49020df3 [ Upstream commit 4caab28a6215da5f3c1b505ff08810bc6acfe365 ] The condition register PCI_RCV_INTX is used in irq_mask() and irq_unmask() callbacks. Accesses to register can occur at the same time without a lock. Add a lock into each callback to prevent the issue. And INTX mask and unmask fields in PCL_RCV_INTX register should only be set/reset for each bit. Clearing by PCL_RCV_INTX_ALL_MASK should be removed. INTX status fields in PCL_RCV_INTX register only indicates each INTX interrupt status, so the handler can't clear by writing 1 to the field. The status is expected to be cleared by the interrupt origin. The ack function has no meaning, so should remove it. Suggested-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/1631924579-24567-1-git-send-email-hayashi.kunihiko@socionext.com Fixes: 7e6d5cd88a6f ("PCI: uniphier: Add UniPhier PCIe host controller support") Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Pali Rohár <pali@kernel.org> Acked-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 2021-09-02T19:56:51+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:51+00:00 urn:sha1:6e129176c3afd337966562fc3de236cc48447582 - Add max-virtual-functions to endpoint binding (Kishon Vijay Abraham I) - Add pci_epf_add_vepf() API to add virtual function to endpoint (Kishon Vijay Abraham I) - Add pci_epf_vepf_link() to link virtual function to endpoint physical function (Kishon Vijay Abraham I) - Add virtual function number to pci_epc_ops endpoint ops interfaces (Kishon Vijay Abraham I) - Simplify register base address computation for endpoint BAR configuration (Kishon Vijay Abraham I) - Add support to configure virtual functions in cadence endpoint driver (Kishon Vijay Abraham I) - Add SR-IOV configuration to endpoint test driver (Kishon Vijay Abraham I) - Document configfs usage to create virtual functions for endpoints (Kishon Vijay Abraham I) * remotes/lorenzo/pci/endpoint: Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV device PCI: cadence: Add support to configure virtual functions PCI: cadence: Simplify code to get register base address for configuring BAR PCI: endpoint: Add virtual function number in pci_epc ops PCI: endpoint: Add support to link a physical function to a virtual function PCI: endpoint: Add support to add virtual function in endpoint core dt-bindings: PCI: pci-ep: Add binding to specify virtual function 2021-09-02T19:56:50+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:50+00:00 urn:sha1:4a4547db5612da9ac2404c014b258add369b5b16 - Fix handling BME_CHGED event (Om Prakash Singh) - Fix MSI-X programming (Om Prakash Singh) - Disable interrupts before entering L2 (Om Prakash Singh) - Don't allow suspend when Tegra PCIe is in EP mode (Om Prakash Singh) * remotes/lorenzo/pci/tegra194: PCI: tegra194: Cleanup unused code PCI: tegra194: Don't allow suspend when Tegra PCIe is in EP mode PCI: tegra194: Disable interrupts before entering L2 PCI: tegra194: Fix MSI-X programming PCI: tegra194: Fix handling BME_CHGED event 2021-09-02T19:56:48+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:48+00:00 urn:sha1:af42a0d4a88b658e848d4c27732203a364788b2d - Add Intel Keem Bay PCIe controller driver and DT binding (Srikanth Thokala) * remotes/lorenzo/pci/keembay: PCI: keembay: Add support for Intel Keem Bay dt-bindings: PCI: Add Intel Keem Bay PCIe controller 2021-09-02T19:56:46+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:46+00:00 urn:sha1:a549a33c37ef081593dff266f0c3a9e78a28bdf0 - Add Toshiba Visconti PCIe host controller driver (Nobuhiro Iwamatsu) * pci/visconti: MAINTAINERS: Add entries for Toshiba Visconti PCIe controller PCI: visconti: Add Toshiba Visconti PCIe host controller driver 2021-09-02T19:56:45+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:45+00:00 urn:sha1:0e52059a8256730f5c9555943b52fc115cdb3680 - Add Rockchip RK356X host controller driver (Simon Xue) * pci/rockchip-dwc: PCI: rockchip-dwc: Add Rockchip RK356X host controller driver 2021-09-02T19:56:45+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:45+00:00 urn:sha1:bd8bb4d097e4ca31c234b4dfce8b2efaf11d9889 - Remove surplus break statement (Krzysztof Wilczyński) * pci/dwc: PCI: dwc: Remove surplus break statement after return 2021-09-02T19:56:45+00:00 Bjorn Helgaas bhelgaas@google.com 2021-09-02T19:56:45+00:00 urn:sha1:dbf0b9bad040049cab56d39cc2a4d16f26135586 - Remove surplus break statement and local code block (Krzysztof Wilczyński) * pci/artpec6: PCI: artpec6: Remove local code block from switch statement PCI: artpec6: Remove surplus break statement after return 2021-08-31T19:58:20+00:00 Simon Xue xxm@rock-chips.com 2021-06-25T06:55:11+00:00 urn:sha1:0e898eb8df4e34c7b129452444eb7cef68a11f43 Add a driver for the DesignWare-based PCIe controller found on RK356X. The existing pcie-rockchip-host driver is only used for the Rockchip-designed IP found on RK3399. Link: https://lore.kernel.org/r/20210625065511.1096935-1-xxm@rock-chips.com Tested-by: Peter Geis <pgwipeout@gmail.com> Signed-off-by: Simon Xue <xxm@rock-chips.com> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Rob Herring <robh@kernel.org> 2021-08-31T19:56:43+00:00 Krzysztof Wilczyński kw@linux.com 2021-07-01T21:02:52+00:00 urn:sha1:71121fdd79f562c891900ff21c27316ddeac73af As part of code refactoring completed in a0fd361db8e5 ("PCI: dwc: Move "dbi", "dbi2", and "addr_space" resource setup into common code"), dw_plat_add_pcie_ep() was removed and the call to the dw_pcie_ep_init() was moved into dw_plat_pcie_probe(). This left a break statement behind that is not needed any more as as dw_plat_pcie_probe() returns immediately after calling dw_pcie_ep_init(). Remove this surplus break statement that became dead code. Suggested-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20210701210252.1638709-1-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>