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    Merge tag 'pci-v6.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · c7020e1b
    Linus Torvalds 提交于
    Pull PCI updates from Bjorn Helgaas:
     "Enumeration:
    
       - Squash portdrv_{core,pci}.c into portdrv.c to ease maintenance and
         make more things static.
    
       - Make portdrv bind to Switch Ports that have AER. Previously, if
         these Ports lacked MSI/MSI-X, portdrv failed to bind, which meant
         the Ports couldn't be suspended to low-power states. AER on these
         Ports doesn't use interrupts, and the AER driver doesn't need to
         claim them.
    
       - Assign PCI domain IDs using ida_alloc(), which makes host bridge
         add/remove work better.
    
      Resource management:
    
       - To work better with recent BIOSes that use EfiMemoryMappedIO for
         PCI host bridge apertures, remove those regions from the E820 map
         (E820 entries normally prevent us from allocating BARs). In v5.19,
         we added some quirks to disable E820 checking, but that's not very
         maintainable. EfiMemoryMappedIO means the OS needs to map the
         region for use by EFI runtime services; it shouldn't prevent OS
         from using it.
    
      PCIe native device hotplug:
    
       - Build pciehp by default if USB4 is enabled, since Thunderbolt/USB4
         PCIe tunneling depends on native PCIe hotplug.
    
       - Enable Command Completed Interrupt only if supported to avoid user
         confusion from lspci output that says this is enabled but not
         supported.
    
       - Prevent pciehp from binding to Switch Upstream Ports; this happened
         because of interaction with acpiphp and caused devices below the
         Upstream Port to disappear.
    
      Power management:
    
       - Convert AGP drivers to generic power management. We hope to remove
         legacy power management from the PCI core eventually.
    
      Virtualization:
    
       - Fix pci_device_is_present(), which previously always returned
         "false" for VFs, causing virtio hangs when unbinding the driver.
    
      Miscellaneous:
    
       - Convert drivers to gpiod API to prepare for dropping some legacy
         code.
    
       - Fix DOE fencepost error for the maximum data object length.
    
      Baikal-T1 PCIe controller driver:
    
       - Add driver and DT bindings.
    
      Broadcom STB PCIe controller driver:
    
       - Enable Multi-MSI.
    
       - Delay 100ms after PERST# deassert to allow power and clocks to
         stabilize.
    
       - Configure Read Completion Boundary to 64 bytes.
    
      Freescale i.MX6 PCIe controller driver:
    
       - Initialize PHY before deasserting core reset to fix a regression in
         v6.0 on boards where the PHY provides the reference.
    
       - Fix imx6sx and imx8mq clock names in DT schema.
    
      Intel VMD host bridge driver:
    
       - Fix Secondary Bus Reset on VMD bridges, which allows reset of NVMe
         SSDs in VT-d pass-through scenarios.
    
       - Disable MSI remapping, which gets re-enabled by firmware during
         suspend/resume.
    
      MediaTek PCIe Gen3 controller driver:
    
       - Add MT7986 and MT8195 support.
    
      Qualcomm PCIe controller driver:
    
       - Add SC8280XP/SA8540P basic interconnect support.
    
      Rockchip DesignWare PCIe controller driver:
    
       - Base DT schema on common Synopsys schema.
    
      Synopsys DesignWare PCIe core:
    
       - Collect DT items shared between Root Port and Endpoint (PERST GPIO,
         PHY info, clocks, resets, link speed, number of lanes, number of
         iATU windows, interrupt info, etc) to snps,dw-pcie-common.yaml.
    
       - Add dma-ranges support for Root Ports and Endpoints.
    
       - Consolidate DT resource retrieval for "dbi", "dbi2", "atu", etc. to
         reduce code duplication.
    
       - Add generic names for clocks and resets to encourage more
         consistent naming across drivers using DesignWare IP.
    
       - Stop advertising PTM Responder role for Endpoints, which aren't
         allowed to be responders.
    
      TI J721E PCIe driver:
    
       - Add j721s2 host mode ID to DT schema.
    
       - Add interrupt properties to DT schema.
    
      Toshiba Visconti PCIe controller driver:
    
       - Fix interrupts array max constraints in DT schema"
    
    * tag 'pci-v6.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (95 commits)
      x86/PCI: Use pr_info() when possible
      x86/PCI: Fix log message typo
      x86/PCI: Tidy E820 removal messages
      PCI: Skip allocate_resource() if too little space available
      efi/x86: Remove EfiMemoryMappedIO from E820 map
      PCI/portdrv: Allow AER service only for Root Ports & RCECs
      PCI: xilinx-nwl: Fix coding style violations
      PCI: mvebu: Switch to using gpiod API
      PCI: pciehp: Enable Command Completed Interrupt only if supported
      PCI: aardvark: Switch to using devm_gpiod_get_optional()
      dt-bindings: PCI: mediatek-gen3: add support for mt7986
      dt-bindings: PCI: mediatek-gen3: add SoC based clock config
      dt-bindings: PCI: qcom: Allow 'dma-coherent' property
      PCI: mt7621: Add sentinel to quirks table
      PCI: vmd: Fix secondary bus reset for Intel bridges
      PCI: endpoint: pci-epf-vntb: Fix sparse ntb->reg build warning
      PCI: endpoint: pci-epf-vntb: Fix sparse build warning for epf_db
      PCI: endpoint: pci-epf-vntb: Replace hardcoded 4 with sizeof(u32)
      PCI: endpoint: pci-epf-vntb: Remove unused epf_db_phy struct member
      PCI: endpoint: pci-epf-vntb: Fix call pci_epc_mem_free_addr() in error path
      ...
    c7020e1b
pci-tegra.c 72.0 KB