linux-stable/drivers/pci/controller
Linus Torvalds 0c5c62ddf8 pci-v5.16-changes
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Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Conserve IRQs by setting up portdrv IRQs only when there are users
     (Jan Kiszka)
   - Rework and simplify _OSC negotiation for control of PCIe features
     (Joerg Roedel)
   - Remove struct pci_dev.driver pointer since it's redundant with the
     struct device.driver pointer (Uwe Kleine-König)

  Resource management:
   - Coalesce contiguous host bridge apertures from _CRS to accommodate
     BARs that cover more than one aperture (Kai-Heng Feng)

  Sysfs:
   - Check CAP_SYS_ADMIN before parsing user input (Krzysztof
     Wilczyński)
   - Return -EINVAL consistently from "store" functions (Krzysztof
     Wilczyński)
   - Use sysfs_emit() in endpoint "show" functions to avoid buffer
     overruns (Kunihiko Hayashi)

  PCIe native device hotplug:
   - Ignore Link Down/Up caused by resets during error recovery so
     endpoint drivers can remain bound to the device (Lukas Wunner)

  Virtualization:
   - Avoid bus resets on Atheros QCA6174, where they hang the device
     (Ingmar Klein)
   - Work around Pericom PI7C9X2G switch packet drop erratum by using
     store and forward mode instead of cut-through (Nathan Rossi)
   - Avoid trying to enable AtomicOps on VFs; the PF setting applies to
     all VFs (Selvin Xavier)

  MSI:
   - Document that /sys/bus/pci/devices/.../irq contains the legacy INTx
     interrupt or the IRQ of the first MSI (not MSI-X) vector (Barry
     Song)

  VPD:
   - Add pci_read_vpd_any() and pci_write_vpd_any() to access anywhere
     in the possible VPD space; use these to simplify the cxgb3 driver
     (Heiner Kallweit)

  Peer-to-peer DMA:
   - Add (not subtract) the bus offset when calculating DMA address
     (Wang Lu)

  ASPM:
   - Re-enable LTR at Downstream Ports so they don't report Unsupported
     Requests when reset or hot-added devices send LTR messages
     (Mingchuang Qiao)

  Apple PCIe controller driver:
   - Add driver for Apple M1 PCIe controller (Alyssa Rosenzweig, Marc
     Zyngier)

  Cadence PCIe controller driver:
   - Return success when probe succeeds instead of falling into error
     path (Li Chen)

  HiSilicon Kirin PCIe controller driver:
   - Reorganize PHY logic and add support for external PHY drivers
     (Mauro Carvalho Chehab)
   - Support PERST# GPIOs for HiKey970 external PEX 8606 bridge (Mauro
     Carvalho Chehab)
   - Add Kirin 970 support (Mauro Carvalho Chehab)
   - Make driver removable (Mauro Carvalho Chehab)

  Intel VMD host bridge driver:
   - If IOMMU supports interrupt remapping, leave VMD MSI-X remapping
     enabled (Adrian Huang)
   - Number each controller so we can tell them apart in
     /proc/interrupts (Chunguang Xu)
   - Avoid building on UML because VMD depends on x86 bare metal APIs
     (Johannes Berg)

  Marvell Aardvark PCIe controller driver:
   - Define macros for PCI_EXP_DEVCTL_PAYLOAD_* (Pali Rohár)
   - Set Max Payload Size to 512 bytes per Marvell spec (Pali Rohár)
   - Downgrade PIO Response Status messages to debug level (Marek Behún)
   - Preserve CRS SV (Config Request Retry Software Visibility) bit in
     emulated Root Control register (Pali Rohár)
   - Fix issue in configuring reference clock (Pali Rohár)
   - Don't clear status bits for masked interrupts (Pali Rohár)
   - Don't mask unused interrupts (Pali Rohár)
   - Avoid code repetition in advk_pcie_rd_conf() (Marek Behún)
   - Retry config accesses on CRS response (Pali Rohár)
   - Simplify emulated Root Capabilities initialization (Pali Rohár)
   - Fix several link training issues (Pali Rohár)
   - Fix link-up checking via LTSSM (Pali Rohár)
   - Fix reporting of Data Link Layer Link Active (Pali Rohár)
   - Fix emulation of W1C bits (Marek Behún)
   - Fix MSI domain .alloc() method to return zero on success (Marek
     Behún)
   - Read entire 16-bit MSI vector in MSI handler, not just low 8 bits
     (Marek Behún)
   - Clear Root Port I/O Space, Memory Space, and Bus Master Enable bits
     at startup; PCI core will set those as necessary (Pali Rohár)
   - When operating as a Root Port, set class code to "PCI Bridge"
     instead of the default "Mass Storage Controller" (Pali Rohár)
   - Add emulation for PCI_BRIDGE_CTL_BUS_RESET since aardvark doesn't
     implement this per spec (Pali Rohár)
   - Add emulation of option ROM BAR since aardvark doesn't implement
     this per spec (Pali Rohár)

  MediaTek MT7621 PCIe controller driver:
   - Add MediaTek MT7621 PCIe host controller driver and DT binding
     (Sergio Paracuellos)

  Qualcomm PCIe controller driver:
   - Add SC8180x compatible string (Bjorn Andersson)
   - Add endpoint controller driver and DT binding (Manivannan
     Sadhasivam)
   - Restructure to use of_device_get_match_data() (Prasad Malisetty)
   - Add SC7280-specific pcie_1_pipe_clk_src handling (Prasad Malisetty)

  Renesas R-Car PCIe controller driver:
   - Remove unnecessary includes (Geert Uytterhoeven)

  Rockchip DesignWare PCIe controller driver:
   - Add DT binding (Simon Xue)

  Socionext UniPhier Pro5 controller driver:
   - Serialize INTx masking/unmasking (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Run dwc .host_init() method before registering MSI interrupt
     handler so we can deal with pending interrupts left by bootloader
     (Bjorn Andersson)
   - Clean up Kconfig dependencies (Andy Shevchenko)
   - Export symbols to allow more modular drivers (Luca Ceresoli)

  TI DRA7xx PCIe controller driver:
   - Allow host and endpoint drivers to be modules (Luca Ceresoli)
   - Enable external clock if present (Luca Ceresoli)

  TI J721E PCIe driver:
   - Disable PHY when probe fails after initializing it (Christophe
     JAILLET)

  MicroSemi Switchtec management driver:
   - Return error to application when command execution fails because an
     out-of-band reset has cleared the device BARs, Memory Space Enable,
     etc (Kelvin Cao)
   - Fix MRPC error status handling issue (Kelvin Cao)
   - Mask out other bits when reading of management VEP instance ID
     (Kelvin Cao)
   - Return EOPNOTSUPP instead of ENOTSUPP from sysfs show functions
     (Kelvin Cao)
   - Add check of event support (Logan Gunthorpe)

  Miscellaneous:
   - Remove unused pci_pool wrappers, which have been replaced by
     dma_pool (Cai Huoqing)
   - Use 'unsigned int' instead of bare 'unsigned' (Krzysztof
     Wilczyński)
   - Use kstrtobool() directly, sans strtobool() wrapper (Krzysztof
     Wilczyński)
   - Fix some sscanf(), sprintf() format mismatches (Krzysztof
     Wilczyński)
   - Update PCI subsystem information in MAINTAINERS (Krzysztof
     Wilczyński)
   - Correct some misspellings (Krzysztof Wilczyński)"

* tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (137 commits)
  PCI: Add ACS quirk for Pericom PI7C9X2G switches
  PCI: apple: Configure RID to SID mapper on device addition
  iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
  PCI: apple: Implement MSI support
  PCI: apple: Add INTx and per-port interrupt support
  PCI: kirin: Allow removing the driver
  PCI: kirin: De-init the dwc driver
  PCI: kirin: Disable clkreq during poweroff sequence
  PCI: kirin: Move the power-off code to a common routine
  PCI: kirin: Add power_off support for Kirin 960 PHY
  PCI: kirin: Allow building it as a module
  PCI: kirin: Add MODULE_* macros
  PCI: kirin: Add Kirin 970 compatible
  PCI: kirin: Support PERST# GPIOs for HiKey970 external PEX 8606 bridge
  PCI: apple: Set up reference clocks when probing
  PCI: apple: Add initial hardware bring-up
  PCI: of: Allow matching of an interrupt-map local to a PCI device
  of/irq: Allow matching of an interrupt-map local to an interrupt controller
  irqdomain: Make of_phandle_args_to_fwspec() generally available
  PCI: Do not enable AtomicOps on VFs
  ...
2021-11-06 14:36:12 -07:00
..
cadence PCI: cadence: Add cdns_plat_pcie_probe() missing return 2021-11-03 15:37:05 -05:00
dwc Merge branch 'remotes/lorenzo/pci/qcom' 2021-11-05 11:28:52 -05:00
mobiveil PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
Kconfig Merge branch 'remotes/lorenzo/pci/vmd' 2021-11-05 11:28:53 -05:00
Makefile Merge branch 'pci/host/mt7621' 2021-11-05 11:28:51 -05:00
pci-aardvark.c PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge 2021-10-29 10:25:31 +01:00
pci-ftpci100.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pci-host-common.c PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains 2021-04-20 14:11:22 +01:00
pci-host-generic.c PCI: Unify ECAM constants in native PCI Express drivers 2020-12-10 14:55:49 -06:00
pci-hyperv-intf.c
pci-hyperv.c pci-v5.16-changes 2021-11-06 14:36:12 -07:00
pci-ixp4xx.c ARM: ixp4xx: fix building both pci drivers 2021-08-12 23:10:09 +02:00
pci-loongson.c PCI: loongson: Simplify loongson_pci_probe() return expression 2020-10-02 12:56:31 +01:00
pci-mvebu.c PCI: mvebu: Fix duplicate resource requests 2020-11-04 13:55:30 -06:00
pci-rcar-gen2.c PCI: rcar-gen2: Use fallthrough pseudo-keyword 2020-09-07 15:17:20 +01:00
pci-tegra.c Merge branch 'remotes/lorenzo/pci/tegra' 2021-09-02 14:56:50 -05:00
pci-thunder-ecam.c PCI: Prefer 'unsigned int' over bare 'unsigned' 2021-10-27 13:41:22 -05:00
pci-thunder-pem.c PCI: thunder: Fix compile testing 2021-03-11 15:07:46 -06:00
pci-v3-semi.c PCI: v3-semi: Remove unneeded break 2020-10-20 10:59:55 -05:00
pci-versatile.c
pci-xgene-msi.c PCI: Correct misspelled and remove duplicated words 2021-10-08 17:14:04 -05:00
pci-xgene.c PCI: xgene: Use PCI_VENDOR_ID_AMCC macro 2021-09-30 10:44:37 +01:00
pcie-altera-msi.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-altera.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-apple.c PCI: apple: Configure RID to SID mapper on device addition 2021-11-04 16:29:31 -05:00
pcie-brcmstb.c PCI: Correct misspelled and remove duplicated words 2021-10-08 17:14:04 -05:00
pcie-hisi-error.c PCI: hip: Add handling of HiSilicon HIP PCIe controller errors 2020-09-16 10:30:42 +01:00
pcie-iproc-bcma.c PCI: iproc: Fix BCMA probe resource handling 2021-08-04 12:20:00 +01:00
pcie-iproc-msi.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-iproc-platform.c PCI: iproc: Fix using plain integer as NULL pointer in iproc_pcie_pltfm_probe 2020-10-09 13:37:57 +01:00
pcie-iproc.c PCI: Correct misspelled and remove duplicated words 2021-10-08 17:14:04 -05:00
pcie-iproc.h PCI: Fix kernel-doc formatting 2021-07-06 10:37:46 -05:00
pcie-mediatek-gen3.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-mediatek.c Merge branch 'remotes/lorenzo/pci/mediatek' 2021-09-02 14:56:49 -05:00
pcie-microchip-host.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-mt7621.c pci-v5.16-changes 2021-11-06 14:36:12 -07:00
pcie-rcar-ep.c PCI: rcar-ep: Remove unneeded includes 2021-10-08 09:41:38 -05:00
pcie-rcar-host.c PCI: rcar-host: Remove unneeded includes 2021-10-08 09:43:38 -05:00
pcie-rcar.c
pcie-rcar.h PCI: rcar: Add L1 link state fix into data abort hook 2021-08-16 14:51:30 +01:00
pcie-rockchip-ep.c PCI: endpoint: Add virtual function number in pci_epc ops 2021-08-19 14:13:28 +01:00
pcie-rockchip-host.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-rockchip.c PCI: rockchip: Make 'ep-gpios' DT property optional 2021-02-23 14:23:50 -06:00
pcie-rockchip.h PCI: Unify ECAM constants in native PCI Express drivers 2020-12-10 14:55:49 -06:00
pcie-xilinx-cpm.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
pcie-xilinx-nwl.c Merge branch 'remotes/lorenzo/pci/xilinx-nwl' 2021-09-02 14:56:51 -05:00
pcie-xilinx.c PCI: Bulk conversion to generic_handle_domain_irq() 2021-08-02 11:53:05 -05:00
vmd.c Merge branch 'remotes/lorenzo/pci/vmd' 2021-11-05 11:28:53 -05:00