Re: [PATCH v12 00/19] PCI: rcar-gen4: Add R-Car Gen4 PCIe support

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Hi Yoshihiro

On Fri, Apr 14, 2023 at 03:16:03PM +0900, Yoshihiro Shimoda wrote:
> Add R-Car S4-8 (R-Car Gen4) PCIe Host and Endpoint support.
> To support them, modify PCIe DesignWare common codes.

Thanks for the updates. I'll have a look at the series on the next
week.

-Serge(y)

> 
> Changes from v11:
> https://lore.kernel.org/linux-pci/20230310123510.675685-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
>  - Based on next-20230413
>  - Based on the following cleanups patches:
>    [PATCH v4 00/14] PCI: dwc: Relatively simple fixes and cleanups
>    https://lore.kernel.org/linux-pci/20230414021832.13167-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/
>  - Drop a fixed patch of pci-epf-test because I have submitted it independently.
>  - Split patches about adding dw_pcie_link_set_max_* functions.
>  - Split patches about modify __dw_pcie_prog_outbound_atu().
>  - Add description about num lanes into the commit log.
>  - Add some macros into pci_regs.h and pci.h.
>  - Add comment about disabling bars in pcie-rcar-gen4-host.c.
>  - Set MAX_MSI_IRQS to num_vectors for handling 32 MSIs.
>  - Add .ep_deinit().
>  - Add retrain link handling of PCIe Host mode for detecting PCIe Gen4.
>  - Modify some minor things.
> 
> Changes from v10:
> https://lore.kernel.org/linux-pci/20230308082352.491561-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
>  - Fix dt-bindings doc for endpoint (reported by Rob's bot).
>  - Add reg and reg-names to the dt-bindings doc of host.
>  - Fix examples in the dt-bindings docs of both host and endpoint.
>  - Add R-Car S4-8 device ID into the pci_test_endpoint driver.
> 
> Changes from v9:
> https://lore.kernel.org/linux-pci/20230210134917.2909314-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
>  - Based on next-20230306
>  - Add bug fix patches into this patch series.
>    https://lore.kernel.org/linux-pci/20230216092012.3256440-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
>    https://lore.kernel.org/linux-pci/20230222015327.3585691-1-yoshihiro.shimoda.uh@xxxxxxxxxxx/
>  - Add maximum for max-link-speed and num-lanes to dt-bindings of both host and endpoint.
>  - Add max-functions to dt-bindings of endpoint.
>  - Use reg-names "app" on endpoint.
>  - Remove unnecessary linkup and wait process in rcar_gen4_pcie_host_init().
>  - Remove unnecessary macros in pcie-rcar-gen4.h.
>  - Use dbi2 to write BAR mask registers.
>  - Remove no_msix and intx_by_atu flags.
>  - Reduce __dw_pcie_prog_outbound_atu() arguments.
>  - Add dw_pcie_num_lanes_setup() to setup num_lanes.
>  - Refactor dw_pcie_setup() to avoid PCIE_PORT_LINK_CONTROL writing twice.
> 
> Yoshihiro Shimoda (19):
>   PCI: Add PCI_EXP_LNKCAP_MLW macros
>   PCI: Add INtx Mechanism Messages macros
>   PCI: Add PCI_HEADER_TYPE_MULTI_FUNC
>   PCI: dwc: Add dw_pcie_link_set_max_link_width()
>   PCI: dwc: Add dw_pcie_link_set_max_width()
>   PCI: dwc: Add dw_pcie_link_set_max_cap_width()
>   PCI: dwc: Expose dw_pcie_ep_exit() to module
>   PCI: dwc: Introduce struct dw_pcie_outbound_atu
>   PCI: dwc: Add members into struct dw_pcie_outbound_atu
>   PCI: dwc: Change arguments of dw_pcie_prog_ep_outbound_atu()
>   PCI: dwc: Add support for triggering legacy IRQs
>   PCI: dwc: Add EDMA_UNROLL capability flag
>   PCI: dwc: Introduce .ep_pre_init() and .ep_deinit()
>   dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host
>   dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint
>   PCI: rcar-gen4: Add R-Car Gen4 PCIe Host support
>   PCI: rcar-gen4-ep: Add R-Car Gen4 PCIe Endpoint support
>   MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4
>   misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller
> 
>  .../bindings/pci/rcar-gen4-pci-ep.yaml        |  98 +++++++++
>  .../bindings/pci/rcar-gen4-pci-host.yaml      | 109 ++++++++++
>  MAINTAINERS                                   |   1 +
>  drivers/misc/pci_endpoint_test.c              |   4 +
>  drivers/pci/controller/dwc/Kconfig            |  18 ++
>  drivers/pci/controller/dwc/Makefile           |   4 +
>  .../pci/controller/dwc/pcie-designware-ep.c   |  93 ++++++--
>  drivers/pci/controller/dwc/pcie-designware.c  | 201 +++++++++++-------
>  drivers/pci/controller/dwc/pcie-designware.h  |  27 ++-
>  .../pci/controller/dwc/pcie-rcar-gen4-ep.c    | 166 +++++++++++++++
>  .../pci/controller/dwc/pcie-rcar-gen4-host.c  | 134 ++++++++++++
>  drivers/pci/controller/dwc/pcie-rcar-gen4.c   | 187 ++++++++++++++++
>  drivers/pci/controller/dwc/pcie-rcar-gen4.h   |  49 +++++
>  include/linux/pci.h                           |  18 ++
>  include/uapi/linux/pci_regs.h                 |   7 +
>  15 files changed, 1020 insertions(+), 96 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml
>  create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml
>  create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4-ep.c
>  create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4-host.c
>  create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.c
>  create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.h
> 
> -- 
> 2.25.1
> 



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