kernel/drivers/pci/controller/cadence, branch linux-6.9.y

PCI: cadence: Clear the ARI Capability Next Function Number of the last function

2024-03-10T18:33:16Z

Next Function Number field in ARI Capability Register for last function must be zero by default as per the PCIe specification, indicating there is no next higher number function but that's not happening in our case, so this patch clears the Next Function Number field for last function used. [kwilczynski: white spaces update for one define] Link: https://lore.kernel.org/linux-pci/20231202085015.3048516-1-s-vadapalli@ti.com Signed-off-by: Jasko-EXT Wojciech Signed-off-by: Achal Verma Signed-off-by: Siddharth Vadapalli Signed-off-by: Krzysztof Wilczyński Reviewed-by: Vignesh Raghavendra

Merge branch 'pci/irq-clean-up'

2024-01-15T18:10:40Z

- Rename PCI_IRQ_LEGACY to PCI_IRQ_INTX to be more explicit and match spec terminology (Bjorn Helgaas) - Use existing PCI_IRQ_INTX, PCI_IRQ_MSI, PCI_IRQ_MSIX in artpec6, cadence, designware, designware-plat, dra7xx, imx6, keembay, keystone, layerscape, mhi, ntb, qcom, rcar, rcar-gen4, rockchip, tegra194, uniphier, vntb; drop the redundant pci_epc_irq_type enum with the same values (Damien Le Moal) - Use "intx" instead of "leg" or "legacy" when describing INTx interrupts in endpoint core, endpoint tests, cadence, dra7xx, designware, dw-rockchip, dwc core, imx6, keystone, layerscape, qcom, rcar-gen4, rockchip, tegra194, uniphier, xilinx-nwl (Damien Le Moal) * pci/irq-clean-up: PCI: xilinx-nwl: Use INTX instead of legacy PCI: rockchip-host: Rename rockchip_pcie_legacy_int_handler() PCI: rockchip-ep: Use INTX instead of legacy PCI: uniphier: Use INTX instead of legacy PCI: tegra194: Use INTX instead of legacy PCI: dw-rockchip: Rename rockchip_pcie_legacy_int_handler() PCI: keystone: Use INTX instead of legacy PCI: dwc: Rename dw_pcie_ep_raise_legacy_irq() PCI: cadence: Use INTX instead of legacy PCI: dra7xx: Rename dra7xx_pcie_raise_legacy_irq() misc: pci_endpoint_test: Use INTX instead of LEGACY PCI: endpoint: Rename LEGACY to INTX in test function driver PCI: endpoint: Use INTX instead of legacy PCI: endpoint: Drop PCI_EPC_IRQ_XXX definitions PCI: Rename PCI_IRQ_LEGACY to PCI_IRQ_INTX

PCI: j721e: Make TI J721E depend on ARCH_K3

2024-01-06T04:51:51Z

The J721E PCIe is hardware specific to TI SoC parts so add a dependency on that so it's available for those SoC parts and for compile testing but not necessarily everyone who enables the Cadence PCIe controller. Link: https://lore.kernel.org/linux-pci/20240104213910.1426843-1-pbrobinson@gmail.com Signed-off-by: Peter Robinson Signed-off-by: Krzysztof Wilczyński

PCI: j721e: Add TI J784S4 PCIe configuration

2024-01-06T04:50:49Z

Add PCIe configuration for J784S4 SoC platform which has 4x lane support. Link: https://lore.kernel.org/linux-pci/20231128054402.2155183-6-s-vadapalli@ti.com Tested-by: Achal Verma Signed-off-by: Matt Ranostay Signed-off-by: Achal Verma Signed-off-by: Siddharth Vadapalli Signed-off-by: Krzysztof Wilczyński Reviewed-by: Roger Quadros

PCI: cadence: Use INTX instead of legacy

2023-12-19T08:36:42Z

In the Cadence endpoint controller driver, rename the function cdns_pcie_ep_send_legacy_irq() to cdns_pcie_ep_send_intx_irq() to match the macro PCI_IRQ_INTX name. Related comments and messages mentioning "legacy" are also changed to refer to "intx". Link: https://lore.kernel.org/r/20231122060406.14695-9-dlemoal@kernel.org Signed-off-by: Damien Le Moal Signed-off-by: Lorenzo Pieralisi Reviewed-by: Christoph Hellwig

PCI: endpoint: Drop PCI_EPC_IRQ_XXX definitions

2023-12-18T10:55:56Z

linux/pci.h defines the IRQ flags PCI_IRQ_INTX, PCI_IRQ_MSI and PCI_IRQ_MSIX. Let's use these flags directly instead of the endpoint definitions provided by enum pci_epc_irq_type. This removes the need for defining this enum type completely. Link: https://lore.kernel.org/r/20231122060406.14695-3-dlemoal@kernel.org Signed-off-by: Damien Le Moal Signed-off-by: Lorenzo Pieralisi Reviewed-by: Serge Semin Reviewed-by: Christoph Hellwig Acked-by: Manivannan Sadhasivam

PCI: j721e: Add PCIe 4x lane selection support

2023-12-13T18:26:51Z

Add support for setting of two-bit field that allows selection of 4x lane PCIe which was previously limited to only 2x lanes. Link: https://lore.kernel.org/linux-pci/20231128054402.2155183-5-s-vadapalli@ti.com Signed-off-by: Matt Ranostay Signed-off-by: Achal Verma Signed-off-by: Siddharth Vadapalli Signed-off-by: Krzysztof Wilczyński Reviewed-by: Vignesh Raghavendra Reviewed-by: Roger Quadros

PCI: j721e: Add per platform maximum lane settings

2023-12-13T18:26:11Z

Various platforms have different maximum amount of lanes that can be selected. Add max_lanes to struct j721e_pcie to allow for detection of this which is needed to calculate the needed bitmask size for the possible lane count. Link: https://lore.kernel.org/linux-pci/20231128054402.2155183-4-s-vadapalli@ti.com Signed-off-by: Matt Ranostay Signed-off-by: Achal Verma Signed-off-by: Siddharth Vadapalli Signed-off-by: Krzysztof Wilczyński Reviewed-by: Ravi Gunasekaran

Merge branch 'pci/field-get'

2023-10-28T18:31:05Z

- Use FIELD_GET()/FIELD_PREP() when possible throughout drivers/pci/ (Ilpo Järvinen, Bjorn Helgaas) - Rework DPC control programming for clarity (Ilpo Järvinen) * pci/field-get: PCI/portdrv: Use FIELD_GET() PCI/VC: Use FIELD_GET() PCI/PTM: Use FIELD_GET() PCI/PME: Use FIELD_GET() PCI/ATS: Use FIELD_GET() PCI/ATS: Show PASID Capability register width in bitmasks PCI: Use FIELD_GET() in Sapphire RX 5600 XT Pulse quirk PCI: Use FIELD_GET() PCI/MSI: Use FIELD_GET/PREP() PCI/DPC: Use defines with DPC reason fields PCI/DPC: Use defined fields with DPC_CTL register PCI/DPC: Use FIELD_GET() PCI: hotplug: Use FIELD_GET/PREP() PCI: dwc: Use FIELD_GET/PREP() PCI: cadence: Use FIELD_GET() PCI: Use FIELD_GET() to extract Link Width PCI: mvebu: Use FIELD_PREP() with Link Width PCI: tegra194: Use FIELD_GET()/FIELD_PREP() with Link Width fields # Conflicts: # drivers/pci/controller/dwc/pcie-tegra194.c

PCI: cadence: Use FIELD_GET()

2023-10-18T16:12:51Z

Convert open-coded variants of PCI field access into FIELD_GET() to make the code easier to understand. Link: https://lore.kernel.org/r/20231018113254.17616-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen Signed-off-by: Bjorn Helgaas