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Subject: Re: [PATCH 0/5] Add support for PCIe controller to work in endpoint
 mode on R-Car SoCs.
To:     "Lad, Prabhakar" <prabhakar.csengg@gmail.com>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Magnus Damm <magnus.damm@gmail.com>,
        Marek Vasut <marek.vasut+renesas@gmail.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
        linux-pci <linux-pci@vger.kernel.org>
CC:     Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Andrew Murray <andrew.murray@arm.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
        LAK <linux-arm-kernel@lists.infradead.org>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        Chris Paterson <Chris.Paterson2@renesas.com>,
        "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>
References: <20191106193609.19645-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
 <CA+V-a8tVK7oUYggTb5Vi3agMp4CH8gtiKDHet09DzE5-LAfiew@mail.gmail.com>
From:   Kishon Vijay Abraham I <kishon@ti.com>
Message-ID: <a0d5b159-001a-a013-ba1d-a0eeb3c89ffa@ti.com>
Date:   Wed, 27 Nov 2019 11:37:18 +0530
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Prabhakar,

On 26/11/19 8:03 PM, Lad, Prabhakar wrote:
> Hi Bjorn/Kishon,
> 
> Gentle ping for this patch set.

Reviewed them now. Sorry for the delay.

Thanks
Kishon

> 
> On Wed, Nov 6, 2019 at 7:36 PM Lad Prabhakar <prabhakar.csengg@gmail.com> wrote:
>>
>> From: "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>
>>
>> This patch series adds support for PCIe controller on rcar to work in endpoint mode,
>> this also extends the epf framework to handle multiple outbound regions.
>>
> Cheers,
> --Prabhakar Lad
> 
> 
>> Note:
>> The cadence/rockchip/designware endpoint drivers are build tested only.
>>
>> Endpoint configuration:
>> $ cd /sys/kernel/config/pci_ep
>> $ mkdir functions/pci_epf_test/func1
>> $ echo 0x1912 > functions/pci_epf_test/func1/vendorid
>> $ echo 0x002d > functions/pci_epf_test/func1/deviceid
>> $ echo 32 > functions/pci_epf_test/func1/msi_interrupts
>> $ ln -s functions/pci_epf_test/func1/ controllers/fe000000.pcie_ep/
>> $ echo 1 > controllers/fe000000.pcie_ep/start
>>
>> Host side results:
>> lspci output:
>> 01:00.0 Unassigned class [ff00]: Renesas Technology Corp. Device 002d
>>         Flags: bus master, fast devsel, latency 0, IRQ 103
>>         Memory at fe200200 (64-bit, non-prefetchable) [size=128]
>>         Memory at fe200000 (64-bit, non-prefetchable) [size=256]
>>         Memory at fe200100 (64-bit, non-prefetchable) [size=256]
>>         Capabilities: [40] Power Management version 3
>>         Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
>>         Capabilities: [70] Express Endpoint, MSI 00
>>         Capabilities: [100] Virtual Channel
>>         Kernel driver in use: pci-endpoint-test
>>
>> pcitest results:
>>
>> BAR tests
>>
>> BAR0:           OKAY
>> BAR1:           NOT OKAY
>> BAR2:           OKAY
>> BAR3:           NOT OKAY
>> BAR4:           OKAY
>> BAR5:           NOT OKAY
>>
>> Interrupt tests
>>
>> SET IRQ TYPE TO LEGACY:         OKAY
>> LEGACY IRQ:     OKAY
>> Read Tests
>>
>> SET IRQ TYPE TO LEGACY:         OKAY
>> READ (      1 bytes):           OKAY
>> READ (   1024 bytes):           OKAY
>> READ (   1025 bytes):           OKAY
>> READ (1024000 bytes):           OKAY
>> READ (1024001 bytes):           OKAY
>>
>> Write Tests
>>
>> WRITE (      1 bytes):          OKAY
>> WRITE (   1024 bytes):          OKAY
>> WRITE (   1025 bytes):          OKAY
>> WRITE (1024000 bytes):          OKAY
>> WRITE (1024001 bytes):          OKAY
>>
>> Copy Tests
>>
>> COPY (      1 bytes):           OKAY
>> COPY (   1024 bytes):           OKAY
>> COPY (   1025 bytes):           OKAY
>> COPY (1024000 bytes):           OKAY
>> COPY (1024001 bytes):           OKAY
>>
>> BAR tests for 1/3/5 fail because its configured to use 64bit bars
>>
>> Lad, Prabhakar (5):
>>   pci: pcie-rcar: preparation for adding endpoint support
>>   pci: endpoint: add support to handle multiple base for mapping
>>     outbound memory
>>   PCI: rcar: Add R-Car PCIe endpoint device tree bindings
>>   pci: rcar: add support for rcar pcie controller in endpoint mode
>>   misc: pci_endpoint_test: add device-id for RZ/G2 pcie controller
>>
>>  .../devicetree/bindings/pci/rcar-pci-ep.txt   |   43 +
>>  arch/arm64/configs/defconfig                  |    2 +-
>>  arch/arm64/configs/renesas_defconfig          |    2 +-
>>  drivers/misc/pci_endpoint_test.c              |    3 +
>>  drivers/pci/controller/Kconfig                |   11 +-
>>  drivers/pci/controller/Makefile               |    3 +-
>>  .../pci/controller/dwc/pcie-designware-ep.c   |   30 +-
>>  drivers/pci/controller/pcie-cadence-ep.c      |   11 +-
>>  drivers/pci/controller/pcie-rcar-ep.c         |  483 +++++++
>>  drivers/pci/controller/pcie-rcar-host.c       | 1058 ++++++++++++++
>>  drivers/pci/controller/pcie-rcar.c            | 1231 +----------------
>>  drivers/pci/controller/pcie-rcar.h            |  129 ++
>>  drivers/pci/controller/pcie-rockchip-ep.c     |   13 +-
>>  drivers/pci/endpoint/functions/pci-epf-test.c |   29 +-
>>  drivers/pci/endpoint/pci-epc-core.c           |    7 +-
>>  drivers/pci/endpoint/pci-epc-mem.c            |  189 ++-
>>  include/linux/pci-epc.h                       |   43 +-
>>  17 files changed, 2016 insertions(+), 1271 deletions(-)
>>  create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.txt
>>  create mode 100644 drivers/pci/controller/pcie-rcar-ep.c
>>  create mode 100644 drivers/pci/controller/pcie-rcar-host.c
>>  create mode 100644 drivers/pci/controller/pcie-rcar.h
>>
>> --
>> 2.20.1
>>