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[v24,00/16] PCI: dwc: rcar-gen4: Add R-Car Gen4 PCIe support

Message ID 20231011071423.249458-1-yoshihiro.shimoda.uh@renesas.com
Headers show
Series PCI: dwc: rcar-gen4: Add R-Car Gen4 PCIe support | expand

Message

Yoshihiro Shimoda Oct. 11, 2023, 7:14 a.m. UTC 
Add R-Car S4-8 (R-Car Gen4) PCIe controller for both host and endpoint modes.
To support them, modify PCIe DesignWare common codes.

Changes from v23:
https://lore.kernel.org/linux-pci/20230926122431.3974714-1-yoshihiro.shimoda.uh@renesas.com/
 - Based on the latest pci.git / next branch.
 - Remove Link tag and Krzysztof's s-o-b tags from all patches.
 - Drop "PCI: dwc: Expose dw_pcie_write_dbi2() to module".
 - Add "PCI: dwc: Disable two BARs to avoid unnecessary memory assignment".
 - Add Reviewed-by in the patch 0[137]/16 and the patch 1[24]/16.
 - Fix typo in the patch 14/16.
 - Fix error messages and commit descriptions in the patch 1[234]/16.
 - Change the subjects in the patch 1[34]/16.
 - Use aplhabetical order on Kconfig in the patch 1[34]/16.
 - Drop DWC spec code in the patch 13/16. 

Changes from v22:
https://lore.kernel.org/linux-pci/20230925072130.3901087-1-yoshihiro.shimoda.uh@renesas.com/
 - Based on the latest pci.git / next branch.
 - Add Reviewed-by in the patch 12/16.
 - Move a few endpoint related code from the patch 13/16 to 14/16.
 - Change subjects in the patch 1[34]/16.
 - Modify the code for readability in the patch 14/16.

Changes from v21:
https://lore.kernel.org/linux-pci/20230922065331.3806925-1-yoshihiro.shimoda.uh@renesas.com/
 - Based on the latest pci.git / next branch.
 - Fix -Wmissing-prototypes warnings that was reported by kernel test robot:
   https://lore.kernel.org/linux-pci/202309222125.KiN4nFhD-lkp@intel.com/

Yoshihiro Shimoda (16):
  PCI: dwc: endpoint: Add multiple PFs support for dbi2
  PCI: dwc: Add dw_pcie_link_set_max_link_width()
  PCI: dwc: Add missing PCI_EXP_LNKCAP_MLW handling
  PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting
  PCI: dwc: Add EDMA_UNROLL capability flag
  PCI: dwc: Expose dw_pcie_ep_exit() to module
  PCI: dwc: endpoint: Introduce .pre_init() and .deinit()
  PCI: dwc: Disable two BARs to avoid unnecessary memory assignment
  dt-bindings: PCI: dwc: Update maxItems of reg and reg-names
  dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host
  dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint
  PCI: Add T_PVPERL macro
  PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode
  PCI: rcar-gen4: Add endpoint mode 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        | 115 ++++
 .../bindings/pci/rcar-gen4-pci-host.yaml      | 127 +++++
 .../bindings/pci/snps,dw-pcie-common.yaml     |   4 +-
 .../bindings/pci/snps,dw-pcie-ep.yaml         |   4 +-
 .../devicetree/bindings/pci/snps,dw-pcie.yaml |   4 +-
 MAINTAINERS                                   |   1 +
 drivers/misc/pci_endpoint_test.c              |   4 +
 drivers/pci/controller/dwc/Kconfig            |  25 +
 drivers/pci/controller/dwc/Makefile           |   1 +
 .../pci/controller/dwc/pcie-designware-ep.c   |  45 +-
 .../pci/controller/dwc/pcie-designware-host.c |   8 +
 drivers/pci/controller/dwc/pcie-designware.c  | 101 ++--
 drivers/pci/controller/dwc/pcie-designware.h  |   8 +-
 drivers/pci/controller/dwc/pcie-rcar-gen4.c   | 517 ++++++++++++++++++
 drivers/pci/controller/dwc/pcie-tegra194.c    |   6 -
 drivers/pci/pci.h                             |   3 +
 16 files changed, 904 insertions(+), 69 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.c

Comments

Krzysztof Wilczyński Oct. 14, 2023, 9:44 p.m. UTC | #1 
Hello,

> Add R-Car S4-8 (R-Car Gen4) PCIe controller for both host and endpoint modes.
> To support them, modify PCIe DesignWare common codes.

Applied to controller/rcar, thank you!

[01/16] PCI: dwc: endpoint: Add multiple PFs support for dbi2
        https://git.kernel.org/pci/pci/c/cca7bd87028c
[02/16] PCI: dwc: Add dw_pcie_link_set_max_link_width()
        https://git.kernel.org/pci/pci/c/4f3d04e53b9d
[03/16] PCI: dwc: Add missing PCI_EXP_LNKCAP_MLW handling
        https://git.kernel.org/pci/pci/c/0d8ef6f3065e
[04/16] PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting
        https://git.kernel.org/pci/pci/c/42a0aaac1df2
[05/16] PCI: dwc: Add EDMA_UNROLL capability flag
        https://git.kernel.org/pci/pci/c/9ece6ac45d1b
[06/16] PCI: dwc: Expose dw_pcie_ep_exit() to module
        https://git.kernel.org/pci/pci/c/3f643b8dd982
[07/16] PCI: dwc: endpoint: Introduce .pre_init() and .deinit()
        https://git.kernel.org/pci/pci/c/b4e028978e1e
[08/16] PCI: dwc: Disable two BARs to avoid unnecessary memory assignment
        https://git.kernel.org/pci/pci/c/e308528cac3e
[09/16] dt-bindings: PCI: dwc: Update maxItems of reg and reg-names
        https://git.kernel.org/pci/pci/c/e7bb27bdb333
[10/16] dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host
        https://git.kernel.org/pci/pci/c/888d9525eaee
[11/16] dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint
        https://git.kernel.org/pci/pci/c/323d6545bc64
[12/16] PCI: Add T_PVPERL macro
        https://git.kernel.org/pci/pci/c/bfd7a42cd940
[13/16] PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode
        https://git.kernel.org/pci/pci/c/8386896d2eb6
[14/16] PCI: rcar-gen4: Add endpoint mode support
        https://git.kernel.org/pci/pci/c/32b83c68d634
[15/16] MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4
        https://git.kernel.org/pci/pci/c/714e7cd07645
[16/16] misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller
        https://git.kernel.org/pci/pci/c/de45624e69e1

	Krzysztof