Changes in Kconfig

5f3de23d - PCI: amd-mdb: Add AMD MDB Root Port driver

Fri, 28 Feb 2025 09:33:51 +0000

PCI: amd-mdb: Add AMD MDB Root Port driverAdd support for AMD MDB (Multimedia DMA Bridge) IP core as Root Port.The Versal2 devices include MDB Module. The integrated block for MDBalong with the integrated bridge can function as PCIe Root Portcontroller at Gen5 32-GT/s operation per lane.Bridge supports error and INTx interrupts and are handled using platformspecific interrupt line in Versal2.Signed-off-by: Thippeswamy Havalige Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20250228093351.923615-4-thippeswamy.havalige@amd.com[bhelgaas: only present on ARM64-based SoCs; squash Kconfig dependency onARM64 from Geert Uytterhoeven :https://lore.kernel.org/r/eaef1dea7edcf146aa377d5e5c5c85a76ff56bae.1742306383.git.geert+renesas@glider.be]Signed-off-by: Bjorn Helgaas [kwilczynski: commit log, code comments and error messages clean-up,drop redundant "depends on PCI" from Kconfig, expose the error codeas part of error messages where appropriatie, change "depends on"expression to match existing style from other drivers]Signed-off-by: Krzysztof Wilczyński List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

4fbfa17f - PCI: dwc: Add debugfs based Silicon Debug support for DWC

Fri, 21 Feb 2025 13:15:46 +0000

PCI: dwc: Add debugfs based Silicon Debug support for DWCAdd support to provide Silicon Debug interface to userspace.This set of debug registers are part of the RAS DES feature present inDesignWare PCIe controllers.Co-developed-by: Manivannan Sadhasivam Signed-off-by: Shradha Todi Reviewed-by: Manivannan Sadhasivam Reviewed-by: Fan Ni Tested-by: Hrishikesh Deleep Link: https://lore.kernel.org/r/20250221131548.59616-4-shradha.t@samsung.com[kwilczynski: commit log, tidy up Kconfig and drop "default y", tidy upcode comments, squashed patch that fixes a NULL pointer dereference whendebugfs is already unavailable during clean-up fromhttps://lore.kernel.org/linux-pci/20250225171239.19574-2-manivannan.sadhasivam@linaro.org,refactor dwc_pcie_debugfs_init() to not return errors, squashed patch thatchanges how lack of the RAS DES capability is handled fromhttps://lore.kernel.org/linux-pci/20250304151814.6xu7cbpwpqrvcad5@thinkpad]Signed-off-by: Krzysztof Wilczyński List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

d45736b5 - PCI: qcom: Add equalization settings for 16.0 GT/s

Wed, 11 Sep 2024 15:26:28 +0000

PCI: qcom: Add equalization settings for 16.0 GT/sDuring high data transmission rates such as 16.0 GT/s, there is anincreased risk of signal loss due to poor channel quality andinterference. This can impact receiver's ability to capture signalsaccurately.Hence, as signal compensation is achieved through appropriate laneequalization, apply lane equalization settings at both transmitterand receiver which results in an increase in the PCIe signal strength.While at it, modify the pcie-tegra194 driver to make use of thecommon GEN3_EQ_CONTROL_OFF definitions in pcie-designware.h.Link: https://lore.kernel.org/linux-pci/20240911-pci-qcom-gen4-stability-v7-3-743f5c1fd027@linaro.orgTested-by: Johan Hovold Signed-off-by: Shashank Babu Chinta Venkata [mani: dropped the code refactoring and minor changes]Signed-off-by: Manivannan Sadhasivam [kwilczynski: commit log]Signed-off-by: Krzysztof Wilczyński Reviewed-by: Johan Hovold Reviewed-by: Manivannan Sadhasivam List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

e242f26f - PCI: dw-rockchip: Add endpoint mode support

Fri, 07 Jun 2024 11:14:30 +0000

PCI: dw-rockchip: Add endpoint mode supportThe PCIe controller in rk3568 and rk3588 can operate in endpoint mode.This endpoint mode support heavily leverages the existing code inpcie-designware-ep.c.Add support for endpoint mode to the existing pcie-dw-rockchip gluedriver.[kwilczynski: squash with patch adding the PCI_ENDPOINT dependency]Link: https://lore.kernel.org/linux-pci/20240607-rockchip-pcie-ep-v1-v5-10-0a042d6b0049@kernel.orgSigned-off-by: Niklas Cassel Signed-off-by: Krzysztof Wilczyński Signed-off-by: Bjorn Helgaas Reviewed-by: Manivannan Sadhasivam List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

edd6ae10 - PCI: dwc: Convert SOC_SIFIVE to ARCH_SIFIVE

Mon, 18 Sep 2023 10:22:47 +0000

PCI: dwc: Convert SOC_SIFIVE to ARCH_SIFIVEAs part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match theuse of such symbols on other architectures, convert the SiFive PCIdrivers to use the newer symbol.Link: https://lore.kernel.org/linux-pci/20230918-safeness-cornflake-62278bc3aaaa@wendySigned-off-by: Conor Dooley Signed-off-by: Krzysztof Wilczyński List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

e311b383 - PCI: rcar-gen4: Add endpoint mode support

Wed, 18 Oct 2023 08:56:29 +0000

PCI: rcar-gen4: Add endpoint mode supportAdd R-Car Gen4 PCIe controller for endpoint mode. This controller is basedon Synopsys DesignWare PCIe.Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-14-yoshihiro.shimoda.uh@renesas.comSigned-off-by: Yoshihiro Shimoda Signed-off-by: Krzysztof Wilczyński Reviewed-by: Manivannan Sadhasivam Reviewed-by: Serge Semin List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

0d0c5510 - PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode

Wed, 18 Oct 2023 08:56:28 +0000

PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host modeAdd R-Car Gen4 PCIe controller support for host mode.This controller is based on Synopsys DesignWare PCIe. However, thisparticular controller has a number of vendor-specific registers, and assuch, requires initialization code like mode setting and retraining andso on.Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-13-yoshihiro.shimoda.uh@renesas.comSigned-off-by: Yoshihiro Shimoda Signed-off-by: Krzysztof Wilczyński Reviewed-by: Manivannan Sadhasivam Reviewed-by: Serge Semin List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

c39819c0 - PCI: dwc: Sort Kconfig entries by vendor

Tue, 18 Apr 2023 17:43:35 +0000

PCI: dwc: Sort Kconfig entries by vendorSort Kconfig entries by vendor so they appear in alphabetical order inmenuconfig.Link: https://lore.kernel.org/r/20230418174336.145585-7-helgaas@kernel.orgSigned-off-by: Bjorn Helgaas List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

80c170d7 - PCI: Use consistent controller Kconfig menu entry language

Tue, 18 Apr 2023 17:43:33 +0000

PCI: Use consistent controller Kconfig menu entry languageUse "PCIe controller" consistently instead of "host bridge", "bus driver",etc. Annotate with "(host mode)" or "(endpoint mode)" as needed.Link: https://lore.kernel.org/r/20230418174336.145585-5-helgaas@kernel.orgSigned-off-by: Bjorn Helgaas List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

6ba4ce6b - PCI: meson: Add 'Amlogic' to Kconfig prompt

Tue, 18 Apr 2023 17:43:30 +0000

PCI: meson: Add 'Amlogic' to Kconfig promptAdd the "Amlogic" vendor name to the CONFIG_PCI_MESON Kconfig prompt tomatch other PCIe drivers. Capitalize "Meson" to match other Meson Kconfigprompts.Link: https://lore.kernel.org/r/20230418174336.145585-2-helgaas@kernel.orgSigned-off-by: Bjorn Helgaas Cc: Yue Wang List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

3a2776e8 - PCI: kirin: Select REGMAP_MMIO

Mon, 14 Nov 2022 07:23:26 +0000

PCI: kirin: Select REGMAP_MMIOpcie-kirin uses regmaps, and needs to pull them in; otherwise, withCONFIG_PCIE_KIRIN=y and without CONFIG_REGMAP_MMIO pcie-kirin producesa linker failure looking for __devm_regmap_init_mmio_clk().Fixes: d19afe7be126 ("PCI: kirin: Use regmap for APB registers")Link: https://lore.kernel.org/r/04636141da1d6d592174eefb56760511468d035d.1668410580.git.josh@joshtriplett.orgSigned-off-by: Josh Triplett [lpieralisi@kernel.org: commit log and removed REGMAP select]Signed-off-by: Lorenzo Pieralisi Cc: stable@vger.kernel.org # 5.16+ List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

75c2f26d - PCI: imx6: Add i.MX PCIe EP mode support

Mon, 16 Jan 2023 05:41:21 +0000

PCI: imx6: Add i.MX PCIe EP mode supporti.MX PCIe is one dual mode PCIe controller.Add i.MX PCIe EP mode support here, and split the PCIe modes to the RootComplex mode and Endpoint mode.Link: https://lore.kernel.org/r/1673847684-31893-12-git-send-email-hongxing.zhu@nxp.comSigned-off-by: Richard Zhu Signed-off-by: Lorenzo Pieralisi List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

760d560f - PCI: dwc: Adjust to recent removal of PCI_MSI_IRQ_DOMAIN

Thu, 15 Dec 2022 10:34:52 +0000

PCI: dwc: Adjust to recent removal of PCI_MSI_IRQ_DOMAINa474d3fbe287 ("PCI/MSI: Get rid of PCI_MSI_IRQ_DOMAIN") removedPCI_MSI_IRQ_DOMAIN and changed all references to refer to PCI_MSI instead.ba6ed462dcf4 ("PCI: dwc: Add Baikal-T1 PCIe controller support")independently added PCIE_BT1, depending on PCI_MSI_IRQ_DOMAIN.Both commits appeared in v6.2-rc1, so the latter missed the conversion fromPCI_MSI_IRQ_DOMAIN to PCI_MSI. Update PCIE_BT1 to depend on PCI_MSIinstead.[bhelgaas: commit log]Link: https://lore.kernel.org/r/20221215103452.23131-1-lukas.bulwahn@gmail.comSigned-off-by: Lukas Bulwahn Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Serge Semin List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

ba6ed462 - PCI: dwc: Add Baikal-T1 PCIe controller support

Sun, 13 Nov 2022 19:13:01 +0000

PCI: dwc: Add Baikal-T1 PCIe controller supportBaikal-T1 SoC is equipped with DWC PCIe v4.60a host controller. It can betrained to work up to Gen.3 speed over up to x4 lanes. The host controlleris attached to the DW PCIe 3.0 PCS via the PIPE-4 interface, which in itsturn is connected to the DWC 10G PHY. The whole system is supposed to befed up with four clock sources: DBI peripheral clock, AXI applicationclocks and external PHY/core reference clock generating the 100MHz signal.In addition to that the platform provide a way to reset each part of thecontroller: sticky/non-sticky bits, host controller core, PIPE interface,PCS/PHY and Hot/Power reset signal. The driver also provides a way tohandle the GPIO-based PERST# signal.Note due to the Baikal-T1 MMIO peculiarity we have to implement the DBIinterface accessors which make sure the IO operations are dword-aligned.Link: https://lore.kernel.org/r/20221113191301.5526-21-Sergey.Semin@baikalelectronics.ruSigned-off-by: Serge Semin Signed-off-by: Lorenzo Pieralisi List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

a474d3fb - PCI/MSI: Get rid of PCI_MSI_IRQ_DOMAIN

Fri, 11 Nov 2022 13:54:38 +0000

PCI/MSI: Get rid of PCI_MSI_IRQ_DOMAINWhat a zoo: PCI_MSI select GENERIC_MSI_IRQ PCI_MSI_IRQ_DOMAIN def_bool y depends on PCI_MSI select GENERIC_MSI_IRQ_DOMAINErgo PCI_MSI enables PCI_MSI_IRQ_DOMAIN which in turn selectsGENERIC_MSI_IRQ_DOMAIN. So all the dependencies on PCI_MSI_IRQ_DOMAIN arejust an indirection to PCI_MSI.Match the reality and just admit that PCI_MSI requiresGENERIC_MSI_IRQ_DOMAIN.Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe Acked-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20221111122014.467556921@linutronix.de List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

aed9d9e4 - PCI: kirin: Allow building it as a module

Thu, 21 Oct 2021 10:45:15 +0000

PCI: kirin: Allow building it as a moduleThere's nothing preventing this driver from being loaded as a module.Change its config from bool to tristate.Link: https://lore.kernel.org/r/b5e7cfe9df09b492750bd6db0f0c911eaae8c2d4.1634812676.git.mchehab+huawei@kernel.orgSigned-off-by: Mauro Carvalho Chehab Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Acked-by: Xiaowei Song List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

f55fee56 - PCI: qcom-ep: Add Qualcomm PCIe Endpoint controller driver

Mon, 20 Sep 2021 06:59:45 +0000

PCI: qcom-ep: Add Qualcomm PCIe Endpoint controller driverAdd driver for Qualcomm PCIe Endpoint controller based on the DesignWarecore with added Qualcomm-specific wrapper around the core. The driversupport is very basic such that it supports only enumeration, PCIeread/write, and MSI. There is no ASPM and PM support for now but these willbe added later.The driver is capable of using the PERST# and WAKE# side-band GPIOs foroperation and written on top of the DWC PCI framework.[bhelgaas: wrap a few long lines]Co-developed-by: Siddartha Mohanadoss [mani: restructured the driver and fixed several bugs for upstream]Link: https://lore.kernel.org/r/20210920065946.15090-3-manivannan.sadhasivam@linaro.orgSigned-off-by: Siddartha Mohanadoss Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Rob Herring List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

8faa1d2d - PCI: dwc: Clean up Kconfig dependencies (PCIE_DW_EP)

Wed, 23 Jun 2021 14:01:03 +0000

PCI: dwc: Clean up Kconfig dependencies (PCIE_DW_EP)The "depends on" Kconfig construct is a no-op in options thatare selected and therefore has no effect. Remove it.Clean up the users of PCIE_DW_EP and introduce idiom depends on PCI_ENDPOINT select PCIE_DW_EPfor all of them.Link: https://lore.kernel.org/r/20210623140103.47818-2-andriy.shevchenko@linux.intel.comSigned-off-by: Andy Shevchenko Signed-off-by: Lorenzo Pieralisi List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

2908a0d8 - PCI: dwc: Clean up Kconfig dependencies (PCIE_DW_HOST)

Wed, 23 Jun 2021 14:01:02 +0000

PCI: dwc: Clean up Kconfig dependencies (PCIE_DW_HOST)The "depends on" Kconfig construct is a no-op in options thatare selected and therefore has no effect. Remove it.Furthermore, there is no need to repeat menu dependencies (PCI).Clean up the users of PCIE_DW_HOST and introduce idiom depends on PCI_MSI_IRQ_DOMAIN select PCIE_DW_HOSTfor all of them.Link: https://lore.kernel.org/r/20210623140103.47818-1-andriy.shevchenko@linux.intel.comSigned-off-by: Andy Shevchenko Signed-off-by: Lorenzo Pieralisi List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig

3b868d15 - PCI: dra7xx: Make it a kernel module

Mon, 31 May 2021 08:59:32 +0000

PCI: dra7xx: Make it a kernel moduleEnable building the driver as a loadable kernel module.Link: https://lore.kernel.org/r/20210531085934.2662457-3-luca@lucaceresoli.netSigned-off-by: Luca Ceresoli Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I List of files: /linux-6.15/drivers/pci/controller/dwc/Kconfig