Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/drivers/pci/hotplug?h=master 2022-04-05T16:13:33Z 2022-04-05T16:13:33Z Christophe Leroy christophe.leroy@csgroup.eu 2022-04-02T10:11:56Z urn:sha1:b2851926c6d9d977ff60f613aff95f4900b9620e arch/powerpc/include/asm/prom.h includes some headers that it doesn't need itself. Add the missing headers to files that include prom.h so we can remove them from prom.h. Link: https://lore.kernel.org/r/79201f5fae8d003164ac36ed3be7789db1bc5ab4.1648833421.git.christophe.leroy@csgroup.eu Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2022-03-25T20:02:05Z Linus Torvalds torvalds@linux-foundation.org 2022-03-25T20:02:05Z urn:sha1:148a650476955705482dd57e7ffcf105d8b65440 Pull pci updates from Bjorn Helgaas: "Enumeration: - Move the VGA arbiter from drivers/gpu to drivers/pci because it's PCI-specific, not GPU-specific (Bjorn Helgaas) - Select the default VGA device consistently whether it's enumerated before or after VGA arbiter init, which fixes arches that enumerate PCI devices late (Huacai Chen) Resource management: - Support BAR sizes up to 8TB (Dongdong Liu) PCIe native device hotplug: - Fix "Command Completed" tracking to avoid spurious timouts when powering off empty slots (Liguang Zhang) - Quirk Qualcomm devices that don't implement Command Completed correctly, again to avoid spurious timeouts (Manivannan Sadhasivam) Peer-to-peer DMA: - Add Intel 3rd Gen Intel Xeon Scalable Processors to whitelist (Michael J. Ruhl) APM X-Gene PCIe controller driver: - Revert generic DT parsing changes that broke some machines in the field (Marc Zyngier) Freescale i.MX6 PCIe controller driver: - Allow controller probe to succeed even when no devices currently present to allow hot-add later (Fabio Estevam) - Enable power management on i.MX6QP (Richard Zhu) - Assert CLKREQ# on i.MX8MM so enumeration doesn't hang when no device is connected (Richard Zhu) Marvell Aardvark PCIe controller driver: - Fix MSI and MSI-X support (Marek Behún, Pali Rohár) - Add support for ERR and PME interrupts (Pali Rohár) Marvell MVEBU PCIe controller driver: - Add DT binding and support for "num-lanes" (Pali Rohár) - Add support for INTx interrupts (Pali Rohár) Microsoft Hyper-V host bridge driver: - Avoid unnecessary hypercalls when unmasking IRQs on ARM64 (Boqun Feng) Qualcomm PCIe controller driver: - Add SM8450 DT binding and driver support (Dmitry Baryshkov) Renesas R-Car PCIe controller driver: - Help the controller get to the L1 state since the hardware can't do it on its own (Marek Vasut) - Return PCI_ERROR_RESPONSE (~0) for reads that fail on PCIe (Marek Vasut) SiFive FU740 PCIe controller driver: - Drop redundant '-gpios' from DT GPIO lookup (Ben Dooks) - Force 2.5GT/s for initial device probe (Ben Dooks) Socionext UniPhier Pro5 controller driver: - Add NX1 DT binding and driver support (Kunihiko Hayashi) Synopsys DesignWare PCIe controller driver: - Restore MSI configuration so MSI works after resume (Jisheng Zhang)" * tag 'pci-v5.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits) x86/PCI: Add #includes to asm/pci_x86.h PCI: ibmphp: Remove unused assignments PCI: cpqphp: Remove unused assignments PCI: fu740: Remove unused assignments PCI: kirin: Remove unused assignments PCI: Remove unused assignments PCI: Declare pci_filp_private only when HAVE_PCI_MMAP PCI: Avoid broken MSI on SB600 USB devices PCI: fu740: Force 2.5GT/s for initial device probe PCI: xgene: Revert "PCI: xgene: Fix IB window setup" PCI: xgene: Revert "PCI: xgene: Use inbound resources for setup" PCI: imx6: Assert i.MX8MM CLKREQ# even if no device present PCI: imx6: Invoke the PHY exit function after PHY power off PCI: rcar: Use PCI_SET_ERROR_RESPONSE after read which triggered an exception PCI: rcar: Finish transition to L1 state in rcar_pcie_config_access() PCI: dwc: Restore MSI Receiver mask during resume PCI: fu740: Drop redundant '-gpios' from DT GPIO lookup PCI/VGA: Replace full MIT license text with SPDX identifier PCI/VGA: Use unsigned format string to print lock counts PCI/VGA: Log bridge control messages when adding devices ... 2022-03-22T22:16:21Z Bjorn Helgaas bhelgaas@google.com 2022-03-22T22:16:21Z urn:sha1:73c82469bd88ce1c9a4403f34582e544e77f4854 - Update the aer-inject URL (Yicong Yang) - Declare pci_filp_private only when HAVE_PCI_MMAP to avoid unused struct definition (Krzysztof Wilczyński) - Remove unused assignments (Bjorn Helgaas) - Add #includes to asm/pci_x86.h to prevent build errors (Randy Dunlap) * pci/misc: x86/PCI: Add #includes to asm/pci_x86.h PCI: ibmphp: Remove unused assignments PCI: cpqphp: Remove unused assignments PCI: fu740: Remove unused assignments PCI: kirin: Remove unused assignments PCI: Remove unused assignments PCI: Declare pci_filp_private only when HAVE_PCI_MMAP PCI/AER: Update aer-inject URL 2022-03-22T22:16:20Z Bjorn Helgaas bhelgaas@google.com 2022-03-22T22:16:20Z urn:sha1:f787b6821423fe0d79b63ef29ff3cb48b99af34b - Clear pciehp cmd_busy bit when command completes in polling mode to avoid spurious timeouts (Liguang Zhang) - Add quirk to work around Qualcomm hardware defect in Command Completed signaling (Manivannan Sadhasivam) * pci/hotplug: PCI: pciehp: Add Qualcomm quirk for Command Completed erratum PCI: pciehp: Clear cmd_busy bit in polling mode 2022-03-22T22:16:20Z Bjorn Helgaas bhelgaas@google.com 2022-03-22T22:16:20Z urn:sha1:fde14ee6293efc5bbde6caf7b8c6ebb2f1fb203a - Add and use #defines for normal and subtractive PCI bridges (Pali Rohár) - Set all 24 bits of PCI class code for iproc (Pali Rohár) * pci/bridge-class-codes: PCI: iproc: Set all 24 bits of PCI class code PCI: Add defines for normal and subtractive PCI bridges 2022-03-22T16:24:48Z Bjorn Helgaas bhelgaas@google.com 2022-03-13T19:29:33Z urn:sha1:6a8fcf7d47a0679a0fe4239c783224ceb559e661 Remove variables and assignments that are never used. Found by Krzysztof using cppcheck, e.g.: $ cppcheck --enable=all --force unreadVariable drivers/pci/hotplug/ibmphp_res.c:1958 Variable 'bus_sec' is assigned a value that is never used. Reported-by: Krzysztof Wilczyński <kw@linux.com> Link: https://lore.kernel.org/r/20220313192933.434746-6-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2022-03-22T16:24:40Z Bjorn Helgaas bhelgaas@google.com 2022-03-13T19:29:32Z urn:sha1:af8b8b6c044541430b287e549aeb5ffd622c8ac7 Remove variables and assignments that are never used. Found by Krzysztof using cppcheck, e.g.: $ cppcheck --enable=all --force unreadVariable drivers/pci/hotplug/cpqphp_core.c:1257 Variable 'rc' is assigned a value that is never used. Reported-by: Krzysztof Wilczyński <kw@linux.com> Link: https://lore.kernel.org/r/20220313192933.434746-5-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2022-02-17T21:29:35Z Pali Rohár pali@kernel.org 2022-02-14T11:41:08Z urn:sha1:904b10fb189cc15376e9bfce1ef0282e68b0b004 Add these PCI class codes to pci_ids.h: PCI_CLASS_BRIDGE_PCI_NORMAL PCI_CLASS_BRIDGE_PCI_SUBTRACTIVE Use these defines in all kernel code for describing PCI class codes for normal and subtractive PCI bridges. [bhelgaas: similar change in pci-mvebu.c] Link: https://lore.kernel.org/r/20220214114109.26809-1-pali@kernel.org Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2022-02-10T22:43:45Z Manivannan Sadhasivam manivannan.sadhasivam@linaro.org 2022-02-10T14:50:03Z urn:sha1:9f72d4757cbe4d1ed669192f6d23817c9e437c4b The Qualcomm PCI bridge device (Device ID 0x0110) found in chipsets such as SM8450 does not set the Command Completed bit unless writes to the Slot Command register change "Control" bits. This results in timeouts like below: pcieport 0001:00:00.0: pciehp: Timeout on hotplug command 0x03c0 (issued 2020 msec ago) Add the device to the Command Completed quirk to mark commands "completed" immediately unless they change the "Control" bits. Link: https://lore.kernel.org/r/20220210145003.135907-1-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2022-02-04T23:10:44Z Rafael J. Wysocki rafael.j.wysocki@intel.com 2022-01-26T23:40:13Z urn:sha1:9a607a54a16314ca4f9ec1843e7c01131d851f33 Replace acpi_bus_get_device() that is going to be dropped with acpi_fetch_acpi_dev(). No intentional functional impact. Link: https://lore.kernel.org/r/11930209.O9o76ZdvQC@kreacher Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>