Commit 3925c3bb authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci 

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Program MPS for RCiEP devices (Ashok Raj)

   - Fix pci_register_host_bridge() device_register() error handling
     (Rob Herring)

   - Fix pci_host_bridge struct device release/free handling (Rob
     Herring)

  Resource management:

   - Allow resizing BARs for devices on root bus (Ard Biesheuvel)

  Power management:

   - Reduce Thunderbolt resume time by working around devices that don't
     support DLL Link Active reporting (Mika Westerberg)

   - Work around a Pericom USB controller OHCI/EHCI PME# defect
     (Kai-Heng Feng)

  Virtualization:

   - Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok
     Raj)

   - Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner)

   - Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven)

  Error handling:

   - Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership
     (Alexandru Gagniuc, Kuppuswamy Sathyanarayanan)

   - Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER
     events (Kuppuswamy Sathyanarayanan)

   - Don't enable AER by default in Kconfig (Bjorn Helgaas)

  Peer-to-peer DMA:

   - Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher)

  ASPM:

   - Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng)

  Endpoint framework:

   - Fix DMA channel release in test (Kunihiko Hayashi)

   - Add page size as argument to pci_epc_mem_init() (Lad Prabhakar)

   - Add support to handle multiple base for mapping outbound memory
     (Lad Prabhakar)

  Generic host bridge driver:

   - Support building as module (Rob Herring)

   - Eliminate pci_host_common_probe wrappers (Rob Herring)

  Amlogic Meson PCIe controller driver:

   - Don't use FAST_LINK_MODE to set up link (Marc Zyngier)

  Broadcom STB PCIe controller driver:

   - Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan)

   - Fix clk_put() error (Jim Quinlan)

   - Fix window register offset (Jim Quinlan)

   - Assert fundamental reset on initialization (Nicolas Saenz Julienne)

   - Add notify xHCI reset property (Nicolas Saenz Julienne)

   - Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas
     Saenz Julienne)

   - Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas
     Saenz Julienne)

  Cadence PCIe controller driver:

   - Remove "cdns,max-outbound-regions" DT property (replaced by
     "ranges") (Kishon Vijay Abraham I)

   - Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT
     (Kishon Vijay Abraham I)

  Marvell Aardvark PCIe controller driver:

   - Improve link training (Marek Behún)

   - Add PHY support (Marek Behún)

   - Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek
     Behún)

   - Train link immediately after enabling training to work around
     detection issues with some cards (Pali Rohár)

   - Issue PERST via GPIO to work around detection issues (Pali Rohár)

   - Don't blindly enable ASPM L0s (Pali Rohár)

   - Replace custom macros by standard linux/pci_regs.h macros (Pali
     Rohár)

  Microsoft Hyper-V host bridge driver:

   - Fix probe failure path to release resource (Wei Hu)

   - Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu)

  Renesas R-Car PCIe controller driver:

   - Fix incorrect programming of OB windows (Andrew Murray)

   - Add suspend/resume (Kazufumi Ikeda)

   - Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar)

   - Add endpoint controller driver (Lad Prabhakar)

   - Fix PCIEPAMR mask calculation (Lad Prabhakar)

   - Add r8a77961 to DT binding (Yoshihiro Shimoda)

  Socionext UniPhier Pro5 controller driver:

   - Add endpoint controller driver (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:

   - Program outbound ATU upper limit register (Alan Mikhak)

   - Fix inner MSI IRQ domain registration (Marc Zyngier)

  Miscellaneous:

   - Check for platform_get_irq() failure consistently (negative return
     means failure) (Aman Sharma)

   - Fix several runtime PM get/put imbalances (Dinghao Liu)

   - Use flexible-array and struct_size() helpers for code cleanup
     (Gustavo A. R. Silva)

   - Update & fix issues in bridge emulation of PCIe registers (Jon
     Derrick)

   - Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc)
     (Krzysztof Wilczyński)

   - Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)"

* tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
  PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
  PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
  PCI/DPC: Print IRQ number used by port
  PCI/AER: Use "aer" variable for capability offset
  PCI/AER: Remove redundant dev->aer_cap checks
  PCI/AER: Remove redundant pci_is_pcie() checks
  PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership
  PCI: tegra: Fix runtime PM imbalance on error
  PCI: vmd: Filter resource type bits from shadow register
  PCI: tegra194: Fix runtime PM imbalance on error
  dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
  PCI: hv: Use struct_size() helper
  PCI: Rename _DSM constants to align with spec
  PCI: Avoid FLR for AMD Starship USB 3.0
  PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
  x86/PCI: Drop unused xen_register_pirq() gsi_override parameter
  PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
  PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
  PCI: dwc: Fix inner MSI IRQ domain registration
  PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
  ...
parents 9fa88c5d 2bd81cd0

Documentation/PCI/endpoint/pci-endpoint.rst

+8 −8
Original line number Diff line number Diff line
@@ -78,8 +78,8 @@ by the PCI controller driver. 
   Cleanup the pci_epc_mem structure allocated during pci_epc_mem_init().





APIs for the PCI Endpoint Function Driver

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

EPC APIs for the PCI Endpoint Function Driver

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



This section lists the APIs that the PCI Endpoint core provides to be used

by the PCI endpoint function driver.
@@ -117,8 +117,8 @@ by the PCI endpoint function driver. 
   The PCI endpoint function driver should use pci_epc_mem_free_addr() to

   free the memory space allocated using pci_epc_mem_alloc_addr().



Other APIs

~~~~~~~~~~

Other EPC APIs

~~~~~~~~~~~~~~



There are other APIs provided by the EPC library. These are used for binding

the EPF device with EPC device. pci-ep-cfs.c can be used as reference for
@@ -160,8 +160,8 @@ PCI Endpoint Function(EPF) Library 
The EPF library provides APIs to be used by the function driver and the EPC

library to provide endpoint mode functionality.



APIs for the PCI Endpoint Function Driver

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

EPF APIs for the PCI Endpoint Function Driver

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



This section lists the APIs that the PCI Endpoint core provides to be used

by the PCI endpoint function driver.
@@ -204,8 +204,8 @@ by the PCI endpoint controller library. 
   The PCI endpoint controller library invokes pci_epf_linkup() when the

   EPC device has established the connection to the host.



Other APIs

~~~~~~~~~~

Other EPF APIs

~~~~~~~~~~~~~~



There are other APIs provided by the EPF library. These are used to notify

the function driver when the EPF device is bound to the EPC device.

Documentation/devicetree/bindings/pci/aardvark-pci.txt

+4 −0
Original line number Diff line number Diff line
@@ -19,6 +19,9 @@ contain the following properties: 
 - interrupt-map-mask and interrupt-map: standard PCI properties to

   define the mapping of the PCIe interface to interrupt numbers.

 - bus-range: PCI bus numbers covered

 - phys: the PCIe PHY handle

 - max-link-speed: see pci.txt

 - reset-gpios: see pci.txt



In addition, the Device Tree describing an Aardvark PCIe controller

must include a sub-node that describes the legacy interrupt controller
@@ -48,6 +51,7 @@ Example: 
				<0 0 0 2 &pcie_intc 1>,

				<0 0 0 3 &pcie_intc 2>,

				<0 0 0 4 &pcie_intc 3>;

		phys = <&comphy1 0>;

		pcie_intc: interrupt-controller {

			interrupt-controller;

			#interrupt-cells = <1>;

Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml

+2 −0
Original line number Diff line number Diff line
@@ -56,6 +56,8 @@ properties: 
    description: Indicates usage of spread-spectrum clocking.

    type: boolean



  aspm-no-l0s: true



required:

  - reg

  - dma-ranges

Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml

+1 −1
Original line number Diff line number Diff line
@@ -10,7 +10,7 @@ maintainers: 
  - Tom Joseph <tjoseph@cadence.com>



allOf:

  - $ref: "cdns-pcie.yaml#"

  - $ref: "cdns-pcie-ep.yaml#"

  - $ref: "pci-ep.yaml#"



properties:

Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml

+1 −2
Original line number Diff line number Diff line
@@ -45,8 +45,6 @@ examples: 
            #size-cells = <2>;

            bus-range = <0x0 0xff>;

            linux,pci-domain = <0>;

            cdns,max-outbound-regions = <16>;

            cdns,no-bar-match-nbits = <32>;

            vendor-id = <0x17cd>;

            device-id = <0x0200>;
@@ -57,6 +55,7 @@ examples: 


            ranges = <0x02000000 0x0 0x42000000  0x0 0x42000000  0x0 0x1000000>,

                     <0x01000000 0x0 0x43000000  0x0 0x43000000  0x0 0x0010000>;

            dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x1 0x00000000>;



            #interrupt-cells = <0x1>;

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