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* Merge tag 's390-5.13-2' of ↵Linus Torvalds2021-05-061-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull more s390 updates from Heiko Carstens: - add support for system call stack randomization - handle stale PCI deconfiguration events - couple of defconfig updates - some fixes and cleanups * tag 's390-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: fix detection of vector enhancements facility 1 vs. vector packed decimal facility s390/entry: add support for syscall stack randomization s390/configs: change CONFIG_VIRTIO_CONSOLE to "m" s390/cio: remove invalid condition on IO_SCH_UNREG s390/cpumf: remove call to perf_event_update_userpage s390/cpumf: move counter set size calculation to common place s390/cpumf: beautify if-then-else indentation s390/configs: enable CONFIG_PCI_IOV s390/pci: handle stale deconfiguration events s390/pci: rename zpci_configure_device()
| * s390/pci: rename zpci_configure_device()Niklas Schnelle2021-04-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With zpci_configure_device() now always called on a device that has already been configured on the platform level its name has become misleading. Rename it to zpci_scan_configured_device() to signify that the function now only handles the correct scanning of a newly configured PCI function taking care of the special handling necessary for function 0 and functions parked waiting for a PCI bus that can't be created without first seeing function 0. Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com> Reviewed-by: Pierre Morel <pmorel@linux.ibm.com> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
* | Merge tag 'pci-v5.13-changes' of ↵Linus Torvalds2021-05-0555-1138/+2434
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Release OF node when pci_scan_device() fails (Dmitry Baryshkov) - Add pci_disable_parity() (Bjorn Helgaas) - Disable Mellanox Tavor parity reporting (Heiner Kallweit) - Disable N2100 r8169 parity reporting (Heiner Kallweit) - Fix RCiEP device to RCEC association (Qiuxu Zhuo) - Convert sysfs "config", "rom", "reset", "label", "index", "acpi_index" to static attributes to help fix races in device enumeration (Krzysztof Wilczyński) - Convert sysfs "vpd" to static attribute (Heiner Kallweit, Krzysztof Wilczyński) - Use sysfs_emit() in "show" functions (Krzysztof Wilczyński) - Remove unused alloc_pci_root_info() return value (Krzysztof Wilczyński) PCI device hotplug: - Fix acpiphp reference count leak (Feilong Lin) Power management: - Fix acpi_pci_set_power_state() debug message (Rafael J. Wysocki) - Fix runtime PM imbalance (Dinghao Liu) Virtualization: - Increase delay after FLR to work around Intel DC P4510 NVMe erratum (Raphael Norwitz) MSI: - Convert rcar, tegra, xilinx to MSI domains (Marc Zyngier) - For rcar, xilinx, use controller address as MSI doorbell (Marc Zyngier) - Remove unused hv msi_controller struct (Marc Zyngier) - Remove unused PCI core msi_controller support (Marc Zyngier) - Remove struct msi_controller altogether (Marc Zyngier) - Remove unused default_teardown_msi_irqs() (Marc Zyngier) - Let host bridges declare their reliance on MSI domains (Marc Zyngier) - Make pci_host_common_probe() declare its reliance on MSI domains (Marc Zyngier) - Advertise mediatek lack of built-in MSI handling (Thomas Gleixner) - Document ways of ending up with NO_MSI (Marc Zyngier) - Refactor HT advertising of NO_MSI flag (Marc Zyngier) VPD: - Remove obsolete Broadcom NIC VPD length-limiting quirk (Heiner Kallweit) - Remove sysfs VPD size checking dead code (Heiner Kallweit) - Convert VPF sysfs file to static attribute (Heiner Kallweit) - Remove unnecessary pci_set_vpd_size() (Heiner Kallweit) - Tone down "missing VPD" message (Heiner Kallweit) Endpoint framework: - Fix NULL pointer dereference when epc_features not implemented (Shradha Todi) - Add missing destroy_workqueue() in endpoint test (Yang Yingliang) Amazon Annapurna Labs PCIe controller driver: - Fix compile testing without CONFIG_PCI_ECAM (Arnd Bergmann) - Fix "no symbols" warnings when compile testing with CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann) APM X-Gene PCIe controller driver: - Fix cfg resource mapping regression (Dejin Zheng) Broadcom iProc PCIe controller driver: - Return zero for success of iproc_msi_irq_domain_alloc() (Pali Rohár) Broadcom STB PCIe controller driver: - Add reset_control_rearm() stub for !CONFIG_RESET_CONTROLLER (Jim Quinlan) - Fix use of BCM7216 reset controller (Jim Quinlan) - Use reset/rearm for Broadcom STB pulse reset instead of deassert/assert (Jim Quinlan) - Fix brcm_pcie_probe() error return for unsupported revision (Wei Yongjun) Cavium ThunderX PCIe controller driver: - Fix compile testing (Arnd Bergmann) - Fix "no symbols" warnings when compile testing with CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann) Freescale Layerscape PCIe controller driver: - Fix ls_pcie_ep_probe() syntax error (comma for semicolon) (Krzysztof Wilczyński) - Remove layerscape-gen4 dependencies on OF and ARM64, add dependency on ARCH_LAYERSCAPE (Geert Uytterhoeven) HiSilicon HIP PCIe controller driver: - Remove obsolete HiSilicon PCIe DT description (Dongdong Liu) Intel Gateway PCIe controller driver: - Remove unused pcie_app_rd() (Jiapeng Chong) Intel VMD host bridge driver: - Program IRTE with Requester ID of VMD endpoint, not child device (Jon Derrick) - Disable VMD MSI-X remapping when possible so children can use more MSI-X vectors (Jon Derrick) MediaTek PCIe controller driver: - Configure FC and FTS for functions other than 0 (Ryder Lee) - Add YAML schema for MediaTek (Jianjun Wang) - Export pci_pio_to_address() for module use (Jianjun Wang) - Add MediaTek MT8192 PCIe controller driver (Jianjun Wang) - Add MediaTek MT8192 INTx support (Jianjun Wang) - Add MediaTek MT8192 MSI support (Jianjun Wang) - Add MediaTek MT8192 system power management support (Jianjun Wang) - Add missing MODULE_DEVICE_TABLE (Qiheng Lin) Microchip PolarFlare PCIe controller driver: - Make several symbols static (Wei Yongjun) NVIDIA Tegra PCIe controller driver: - Add MCFG quirks for Tegra194 ECAM errata (Vidya Sagar) - Make several symbols const (Rikard Falkeborn) - Fix Kconfig host/endpoint typo (Wesley Sheng) SiFive FU740 PCIe controller driver: - Add pcie_aux clock to prci driver (Greentime Hu) - Use reset-simple in prci driver for PCIe (Greentime Hu) - Add SiFive FU740 PCIe host controller driver and DT binding (Paul Walmsley, Greentime Hu) Synopsys DesignWare PCIe controller driver: - Move MSI Receiver init to dw_pcie_host_init() so it is re-initialized along with the RC in resume (Jisheng Zhang) - Move iATU detection earlier to fix regression (Hou Zhiqiang) TI J721E PCIe driver: - Add DT binding and TI j721e support for refclk to PCIe connector (Kishon Vijay Abraham I) - Add host mode and endpoint mode DT bindings for TI AM64 SoC (Kishon Vijay Abraham I) TI Keystone PCIe controller driver: - Use generic config accessors for TI AM65x (K3) to fix regression (Kishon Vijay Abraham I) Xilinx NWL PCIe controller driver: - Add support for coherent PCIe DMA traffic using CCI (Bharat Kumar Gogada) - Add optional "dma-coherent" DT property (Bharat Kumar Gogada) Miscellaneous: - Fix kernel-doc warnings (Krzysztof Wilczyński) - Remove unused MicroGate SyncLink device IDs (Jiri Slaby) - Remove redundant dev_err() for devm_ioremap_resource() failure (Chen Hui) - Remove redundant initialization (Colin Ian King) - Drop redundant dev_err() for platform_get_irq() errors (Krzysztof Wilczyński)" * tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (98 commits) riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC PCI: fu740: Add SiFive FU740 PCIe host controller driver dt-bindings: PCI: Add SiFive FU740 PCIe host controller MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver clk: sifive: Use reset-simple in prci driver for PCIe driver clk: sifive: Add pcie_aux clock in prci driver for PCIe driver PCI: brcmstb: Use reset/rearm instead of deassert/assert ata: ahci_brcm: Fix use of BCM7216 reset controller reset: add missing empty function reset_control_rearm() PCI: Allow VPD access for QLogic ISP2722 PCI/VPD: Add helper pci_get_func0_dev() PCI/VPD: Remove pci_vpd_find_tag() SRDT handling PCI/VPD: Remove pci_vpd_find_tag() 'offset' argument PCI/VPD: Change pci_vpd_init() return type to void PCI/VPD: Make missing VPD message less alarming PCI/VPD: Remove pci_set_vpd_size() x86/PCI: Remove unused alloc_pci_root_info() return value MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer PCI: mediatek-gen3: Add system PM support PCI: mediatek-gen3: Add MSI support ...
| * \ Merge branch 'pci/tegra'Bjorn Helgaas2021-05-042-1/+103
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | - Add MCFG quirks for Tegra194 ECAM errata (Vidya Sagar) * pci/tegra: PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata
| | * | PCI: tegra: Add Tegra194 MCFG quirks for ECAM errataVidya Sagar2021-04-162-1/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCIe controller in Tegra194 SoC is not ECAM-compliant. With the current hardware design, ECAM can be enabled only for one controller (the C5 controller) with bus numbers starting from 160 instead of 0. A different approach is taken to avoid this abnormal way of enabling ECAM for just one controller but to enable configuration space access for all the other controllers. In this approach, ops are added through MCFG quirk mechanism which access the configuration spaces by dynamically programming iATU (internal AddressTranslation Unit) to generate respective configuration accesses just like the way it is done in DesignWare core sub-system. This issue is specific to Tegra194 and it would be fixed in the future generations of Tegra SoCs. Link: https://lore.kernel.org/r/20210416134537.19474-1-vidyas@nvidia.com Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | | Merge branch 'pci/brcmstb'Bjorn Helgaas2021-05-041-6/+13
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add reset_control_rearm() stub for !CONFIG_RESET_CONTROLLER (Jim Quinlan) - Fix use of BCM7216 reset controller (Jim Quinlan) - Use reset/rearm for Broadcom STB pulse reset instead of deassert/assert (Jim Quinlan) * pci/brcmstb: PCI: brcmstb: Use reset/rearm instead of deassert/assert ata: ahci_brcm: Fix use of BCM7216 reset controller reset: add missing empty function reset_control_rearm()
| | * | | PCI: brcmstb: Use reset/rearm instead of deassert/assertJim Quinlan2021-05-031-6/+13
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Broadcom STB PCIe RC uses a reset control "rescal" for certain chips. The "rescal" implements a "pulse reset" so using assert/deassert is wrong for this device. Instead, we use reset/rearm. We need to use rearm so that we can reset it after a suspend/resume cycle; w/o using "rearm", the "rescal" device will only ever fire once. Of course for suspend/resume to work we also need to put the reset/rearm calls in the suspend and resume routines. Fixes: 740d6c3708a9 ("PCI: brcmstb: Add control of rescal reset") Link: https://lore.kernel.org/r/20210430152156.21162-4-jim2101024@gmail.com Signed-off-by: Jim Quinlan <jim2101024@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
| * | | Merge branch 'remotes/lorenzo/pci/misc'Bjorn Helgaas2021-05-041-2/+1
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Remove layerscape-gen4 dependencies on OF and ARM64, add dependency on ARCH_LAYERSCAPE (Geert Uytterhoeven) - Remove obsolete HiSilicon PCIe DT description (Dongdong Liu) * remotes/lorenzo/pci/misc: dt-bindings: PCI: hisi: Delete the obsolete HiSilicon PCIe file PCI: mobiveil: Improve PCIE_LAYERSCAPE_GEN4 dependencies
| | * | | PCI: mobiveil: Improve PCIE_LAYERSCAPE_GEN4 dependenciesGeert Uytterhoeven2021-03-231-2/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Drop the dependency on PCI, as this is implied by the dependency on PCI_MSI_IRQ_DOMAIN, - Drop the dependencies on OF and ARM64, as the driver compiles fine without OF and/or on other architectures, - The Freescale Layerscape PCIe Gen4 controller is present only on Freescale Layerscape SoCs. Hence depend on ARCH_LAYERSCAPE, to prevent asking the user about this driver when configuring a kernel without Freescale Layerscape support, unless compile-testing. Link: https://lore.kernel.org/r/20210208142301.413582-1-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
| * | | Merge branch 'remotes/lorenzo/pci/msi'Bjorn Helgaas2021-05-0410-540/+487
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Convert tegra to MSI domains (Marc Zyngier) - Use rcar controller address as MSI doorbell instead of allocating a page (Marc Zyngier) - Convert rcar to MSI domains (Marc Zyngier) - Use xilinx port structure as MSI doorbell instead of allocating a page (Marc Zyngier) - Convert xilinx to MSI domains (Marc Zyngier) - Remove unused Hyper-V msi_controller structure (Marc Zyngier) - Remove unused PCI core msi_controller support (Marc Zyngier) - Remove struct msi_controller (Marc Zyngier) - Remove unused default_teardown_msi_irqs() (Marc Zyngier) - Let host bridges declare their reliance on MSI domains (Marc Zyngier) - Make pci_host_common_probe() declare its reliance on MSI domains (Marc Zyngier) - Advertise mediatek lack of built-in MSI handling (Thomas Gleixner) - Document ways of ending up with NO_MSI (Marc Zyngier) - Refactor HT advertising of NO_MSI flag (Marc Zyngier) * remotes/lorenzo/pci/msi: PCI: Refactor HT advertising of NO_MSI flag PCI/MSI: Document the various ways of ending up with NO_MSI PCI: mediatek: Advertise lack of built-in MSI handling PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains PCI/MSI: Let PCI host bridges declare their reliance on MSI domains PCI/MSI: Kill default_teardown_msi_irqs() PCI/MSI: Kill msi_controller structure PCI/MSI: Drop use of msi_controller from core code PCI: hv: Drop msi_controller structure PCI: xilinx: Convert to MSI domains PCI: xilinx: Don't allocate extra memory for the MSI capture address PCI: rcar: Convert to MSI domains PCI: rcar: Don't allocate extra memory for the MSI capture address PCI: tegra: Convert to MSI domains
| | * | | PCI: Refactor HT advertising of NO_MSI flagMarc Zyngier2021-04-201-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The few quirks that deal with NO_MSI tend to be copy-paste heavy. Refactor them so that the hierarchy of conditions is slightly cleaner. Link: https://lore.kernel.org/r/20210330151145.997953-15-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI/MSI: Document the various ways of ending up with NO_MSIMarc Zyngier2021-04-201-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have now three ways of ending up with NO_MSI being set. Document them. Link: https://lore.kernel.org/r/20210330151145.997953-14-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI: mediatek: Advertise lack of built-in MSI handlingThomas Gleixner2021-04-201-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some Mediatek host bridges cannot handle MSIs, which is sad. This also results in an ugly warning at device probe time, as the core PCI code wasn't told that MSIs were not available. Advertise this fact to the rest of the core PCI code by using the 'msi_domain' attribute, which still opens the possibility for another block to provide the MSI functionnality. [maz: commit message, switched over to msi_domain attribute] Link: https://lore.kernel.org/r/20210330151145.997953-13-maz@kernel.org Reported-by: Frank Wunderlich <frank-w@public-files.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domainsMarc Zyngier2021-04-201-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic PCI host driver relies on MSI domains for MSIs to be provided to its end-points. Make this dependency explicit. This cures the warnings occuring on arm/arm64 VMs when booted with PCI virtio devices and no MSI controller (no GICv3 ITS, for example). It is likely that other drivers will need to express the same dependency. Link: https://lore.kernel.org/r/20210330151145.997953-12-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI/MSI: Let PCI host bridges declare their reliance on MSI domainsMarc Zyngier2021-04-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a whole class of host bridges that cannot know whether MSIs will be provided or not, as they rely on other blocks to provide the MSI functionnality, using MSI domains. This is the case for example on systems that use the ARM GIC architecture. Introduce a new attribute ('msi_domain') indicating that implicit dependency, and use this property to set the NO_MSI flag when no MSI domain is found at probe time. Link: https://lore.kernel.org/r/20210330151145.997953-11-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI/MSI: Kill default_teardown_msi_irqs()Marc Zyngier2021-04-201-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It doesn't have any caller left. Link: https://lore.kernel.org/r/20210330151145.997953-10-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI/MSI: Drop use of msi_controller from core codeMarc Zyngier2021-04-202-24/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As there is no driver using msi_controller, we can now safely remove its use from the PCI probe code. Link: https://lore.kernel.org/r/20210330151145.997953-8-maz@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI: hv: Drop msi_controller structureMarc Zyngier2021-04-201-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Hyper-V PCI driver still makes use of a msi_controller structure, but it looks more like a distant leftover than anything actually useful, since it is initialised to 0 and never used for anything. Just remove it. Link: https://lore.kernel.org/r/20210330151145.997953-7-maz@kernel.org Tested-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI: xilinx: Convert to MSI domainsMarc Zyngier2021-04-202-138/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In anticipation of the removal of the msi_controller structure, convert the ancient xilinx host controller driver to MSI domains. We end-up with the usual two domain structure, the top one being a generic PCI/MSI domain, the bottom one being xilinx-specific and handling the actual HW interrupt allocation. This allows us to fix some of the most appaling MSI programming, where the message programmed in the device is the virtual IRQ number instead of the allocated vector number. The allocator is also made safe with a mutex. This should allow support for MultiMSI, but I decided not to even try, since I cannot test it. Link: https://lore.kernel.org/r/20210330151145.997953-6-maz@kernel.org Tested-by: Bharat Kumar Gogada <bharatku@xilinx.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI: xilinx: Don't allocate extra memory for the MSI capture addressMarc Zyngier2021-04-201-12/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A long cargo-culted behaviour of PCI drivers is to allocate memory to obtain an address that is fed to the controller as the MSI capture address (i.e. the MSI doorbell). But there is no actual requirement for this address to be RAM. All it needs to be is a suitable aligned address that will *not* be DMA'd to. Use the physical address of the 'port' data structure as the MSI capture address, aligned on a 4K boundary. Link: https://lore.kernel.org/r/20210330151145.997953-5-maz@kernel.org Tested-by: Bharat Kumar Gogada <bharatku@xilinx.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
| | * | | PCI: rcar: Convert to MSI domainsMarc Zyngier2021-04-202-183/+169
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In anticipation of the removal of the msi_controller structure, convert the Rcar host controller driver to MSI domains. We end-up with the usual two domain structure, the top one being a generic PCI/MSI domain, the bottom one being Rcar-specific and handling the actual HW interrupt allocation. Link: https://lore.kernel.org/r/20210330151145.997953-4-maz@kernel.org Tested-by: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Marc Zyngier <maz@kernel.org> [lorenzo.pieralisi@arm.com: merged fix https://lore.kernel.org/linux-pci/87y2e2p9wk.wl-maz@kernel.org] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI: rcar: Don't allocate extra memory for the MSI capture addressMarc Zyngier2021-04-201-11/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A long cargo-culted behaviour of PCI drivers is to allocate memory to obtain an address that is fed to the controller as the MSI capture address (i.e. the MSI doorbell). But there is no actual requirement for this address to be RAM. All it needs to be is a suitable aligned address that will *not* be DMA'd to. Since the rcar platform already has a requirement that this address should be in the first 4GB of the physical address space, use the controller's own base address as the capture address. Link: https://lore.kernel.org/r/20210330151145.997953-3-maz@kernel.org Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
| | * | | PCI: tegra: Convert to MSI domainsMarc Zyngier2021-04-202-159/+191
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In anticipation of the removal of the msi_controller structure, convert the Tegra host controller driver to MSI domains. We end-up with the usual two domain structure, the top one being a generic PCI/MSI domain, the bottom one being Tegra-specific and handling the actual HW interrupt allocation. While at it, convert the normal interrupt handler to a chained handler, handle the controller's MSI IRQ edge triggered, support multiple MSIs per device and use the AFI_MSI_EN_VEC* registers to provide MSI masking. [treding@nvidia.com: fix, clean up and address TODOs from Marc's draft] Link: https://lore.kernel.org/r/20210330151145.997953-2-maz@kernel.org Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| * | | Merge branch 'remotes/lorenzo/pci/xilinx'Bjorn Helgaas2021-05-041-0/+7
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add support for coherent PCIe DMA traffic using CCI (Bharat Kumar Gogada) - Add optional "dma-coherent" DT property (Bharat Kumar Gogada) * remotes/lorenzo/pci/xilinx: PCI: xilinx-nwl: Add optional "dma-coherent" property PCI: xilinx-nwl: Enable coherent PCIe DMA traffic using CCI
| | * | | PCI: xilinx-nwl: Enable coherent PCIe DMA traffic using CCIBharat Kumar Gogada2021-04-071-0/+7
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for routing PCIe DMA traffic coherently when Cache Coherent Interconnect (CCI) is enabled in the system. The "dma-coherent" property is used to determine if CCI is enabled or not. Refer to https://developer.arm.com/documentation/ddi0470/k/preface for the CCI specification. Link: https://lore.kernel.org/r/20210222084732.21521-1-bharat.kumar.gogada@xilinx.com Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
| * | | Merge branch 'remotes/lorenzo/pci/xgene'Bjorn Helgaas2021-05-041-1/+2
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Fix cfg resource mapping regression (Dejin Zheng) * remotes/lorenzo/pci/xgene: PCI: xgene: Fix cfg resource mapping
| | * | | PCI: xgene: Fix cfg resource mappingDejin Zheng2021-03-311-1/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit e2dcd20b1645 a change was made to use devm_platform_ioremap_resource_byname() to simplify code and remove the res variable; this was wrong since the res variable is still needed and as an outcome the port->cfg_addr gets an erroneous address. Revert the change going back to original behaviour. Link: https://lore.kernel.org/r/20210328144118.305074-1-zhengdejin5@gmail.com Fixes: e2dcd20b1645a ("PCI: controller: Convert to devm_platform_ioremap_resource_byname()") Reported-by: dann.frazier@canonical.com Tested-by: dann frazier <dann.frazier@canonical.com> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org # v5.9+
| * | | Merge branch 'remotes/lorenzo/pci/vmd'Bjorn Helgaas2021-05-041-12/+51
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Program IRTE with Requester ID of VMD endpoint, not child device (Jon Derrick) - Disable VMD MSI-X remapping when possible so children can use more MSI-X vectors (Jon Derrick) * remotes/lorenzo/pci/vmd: PCI: vmd: Disable MSI-X remapping when possible iommu/vt-d: Use Real PCI DMA device for IRTE
| | * | | PCI: vmd: Disable MSI-X remapping when possibleJon Derrick2021-03-221-12/+51
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | VMD will retransmit child device MSI-X using its own MSI-X table and requester-id. This limits the number of MSI-X available to the whole child device domain to the number of VMD MSI-X interrupts. Some VMD devices have a mode where this remapping can be disabled, allowing child device interrupts to bypass processing with the VMD MSI-X domain interrupt handler and going straight the child device interrupt handler, allowing for better performance and scaling. The requester-id still gets changed to the VMD endpoint's requester-id, and the interrupt remapping handlers have been updated to properly set IRTE for child device interrupts to the VMD endpoint's context. Some VMD platforms have existing production BIOS which rely on MSI-X remapping and won't explicitly program the MSI-X remapping bit. This re-enables MSI-X remapping on unload. Link: https://lore.kernel.org/r/20210210161315.316097-3-jonathan.derrick@intel.com Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Acked-by: Joerg Roedel <jroedel@suse.de>
| * | | Merge branch 'remotes/lorenzo/pci/tegra'Bjorn Helgaas2021-05-042-4/+4
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Make several tegra symbols const (Rikard Falkeborn) - Fix tegra Kconfig host/endpoint typo (Wesley Sheng) - Fix runtime PM imbalance (Dinghao Liu) * remotes/lorenzo/pci/tegra: PCI: tegra: Fix runtime PM imbalance in pex_ep_event_pex_rst_deassert() PCI: tegra: Fix typo for PCIe endpoint mode in Tegra194 PCI: tegra: Constify static structs
| | * | | PCI: tegra: Fix runtime PM imbalance in pex_ep_event_pex_rst_deassert()Dinghao Liu2021-04-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pm_runtime_get_sync() will increase the runtime PM counter even it returns an error. Thus a pairing decrement is needed to prevent refcount leak. Fix this by replacing this API with pm_runtime_resume_and_get(), which will not change the runtime PM counter on error. Link: https://lore.kernel.org/r/20210408072700.15791-1-dinghao.liu@zju.edu.cn Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Thierry Reding <treding@nvidia.com>
| | * | | PCI: tegra: Fix typo for PCIe endpoint mode in Tegra194Wesley Sheng2021-03-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In config PCIE_TEGRA194_EP the mode incorrectly is referred to as host mode. Fix it. Link: https://lore.kernel.org/r/20201231032539.22322-1-wesley.sheng@amd.com Signed-off-by: Wesley Sheng <wesley.sheng@amd.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Acked-by: Vidya Sagar <vidyas@nvidia.com>
| | * | | PCI: tegra: Constify static structsRikard Falkeborn2021-03-221-2/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only usage of them is to assign their address to the 'ops' field in the pcie_port and the dw_pcie_ep structs, both which are pointers to const. Make them const to allow the compiler to put them in read-only memory. Link: https://lore.kernel.org/r/20210207221604.48910-1-rikard.falkeborn@gmail.com Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
| * | | Merge branch 'remotes/lorenzo/pci/risc-v'Bjorn Helgaas2021-05-043-0/+319
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - sifive: Add pcie_aux clock to prci driver (Greentime Hu) - sifive: Use reset-simple in prci driver for PCIe (Greentime Hu) - Add SiFive FU740 PCIe host controller driver and DT binding (Paul Walmsley, Greentime Hu) * remotes/lorenzo/pci/risc-v: riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC PCI: fu740: Add SiFive FU740 PCIe host controller driver dt-bindings: PCI: Add SiFive FU740 PCIe host controller MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver clk: sifive: Use reset-simple in prci driver for PCIe driver clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
| | * | | PCI: fu740: Add SiFive FU740 PCIe host controller driverPaul Walmsley2021-05-043-0/+319
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for the SiFive FU740 PCIe host controller. This controller is based on the DesignWare PCIe core. Co-developed-by: Henry Styles <hes@sifive.com> Co-developed-by: Erik Danie <erik.danie@sifive.com> Co-developed-by: Greentime Hu <greentime.hu@sifive.com> Link: https://lore.kernel.org/r/20210504105940.100004-6-greentime.hu@sifive.com Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Henry Styles <hes@sifive.com> Signed-off-by: Erik Danie <erik.danie@sifive.com> Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
| * | | Merge branch 'remotes/lorenzo/pci/microchip'Bjorn Helgaas2021-05-041-7/+5
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Make several microchip symbols static (Wei Yongjun) - Drop redundant dev_err() for platform_get_irq() errors (Krzysztof Wilczyński) * remotes/lorenzo/pci/microchip: PCI: microchip: Remove dev_err() when handing an error from platform_get_irq() PCI: microchip: Make some symbols static
| | * | | PCI: microchip: Remove dev_err() when handing an error from platform_get_irq()Krzysztof Wilczyński2021-03-221-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to call the dev_err() function directly to print a custom message when handling an error from either the platform_get_irq() or platform_get_irq_byname() functions as both are going to display an appropriate error message in case of a failure. This change is as per suggestions from Coccinelle, e.g., drivers/pci/controller/pcie-microchip-host.c:1027:2-9: line 1027 is redundant because platform_get_irq() already prints an error Related commit caecb05c8000 ("PCI: Remove dev_err() when handing an error from platform_get_irq()"). Link: https://lore.kernel.org/r/20210310131913.2802385-1-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
| | * | | PCI: microchip: Make some symbols staticWei Yongjun2021-03-221-4/+4
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sparse tool complains as follows: drivers/pci/controller/pcie-microchip-host.c:304:18: warning: symbol 'pcie_event_to_event' was not declared. Should it be static? drivers/pci/controller/pcie-microchip-host.c:310:18: warning: symbol 'sec_error_to_event' was not declared. Should it be static? drivers/pci/controller/pcie-microchip-host.c:317:18: warning: symbol 'ded_error_to_event' was not declared. Should it be static? drivers/pci/controller/pcie-microchip-host.c:324:18: warning: symbol 'local_status_to_event' was not declared. Should it be static? Those symbols are not used outside of pcie-microchip-host.c, so this commit marks them static. Link: https://lore.kernel.org/r/20210308094842.3588847-1-weiyongjun1@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
| * | | Merge branch 'remotes/lorenzo/pci/mediatek'Bjorn Helgaas2021-05-045-1/+1044
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Configure FC and FTS for functions other than 0 (Ryder Lee) - Add missing MODULE_DEVICE_TABLE (Qiheng Lin) - Add YAML schema for MediaTek (Jianjun Wang) - Export pci_pio_to_address() for module use (Jianjun Wang) - Add MediaTek MT8192 PCIe controller driver (Jianjun Wang) - Add MediaTek MT8192 INTx support (Jianjun Wang) - Add MediaTek MT8192 MSI support (Jianjun Wang) - Add MediaTek MT8192 system power management support (Jianjun Wang) * remotes/lorenzo/pci/mediatek: MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer PCI: mediatek-gen3: Add system PM support PCI: mediatek-gen3: Add MSI support PCI: mediatek-gen3: Add INTx support PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192 PCI: Export pci_pio_to_address() for module use dt-bindings: PCI: mediatek-gen3: Add YAML schema PCI: mediatek: Add missing MODULE_DEVICE_TABLE PCI: mediatek: Configure FC and FTS for functions other than 0
| | * | | PCI: mediatek-gen3: Add system PM supportJianjun Wang2021-04-291-0/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add suspend_noirq and resume_noirq callback functions to implement PM system suspend and resume hooks for the MediaTek Gen3 PCIe controller. When the system suspends, trigger the PCIe link to enter the L2 state and pull down the PERST# pin, gating the clocks of the MAC layer, and then power-off the physical layer to provide power-saving. When the system resumes, the PCIe link should be re-established and the related control register values should be restored. Link: https://lore.kernel.org/r/20210420061723.989-7-jianjun.wang@mediatek.com Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Ryder Lee <ryder.lee@mediatek.com>
| | * | | PCI: mediatek-gen3: Add MSI supportJianjun Wang2021-04-291-0/+276
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add MSI support for MediaTek Gen3 PCIe controller. This PCIe controller supports up to 256 MSI vectors, the MSI hardware block diagram is as follows: +-----+ | GIC | +-----+ ^ | port->irq | +-+-+-+-+-+-+-+-+ |0|1|2|3|4|5|6|7| (PCIe intc) +-+-+-+-+-+-+-+-+ ^ ^ ^ | | ... | +-------+ +------+ +-----------+ | | | +-+-+---+--+--+ +-+-+---+--+--+ +-+-+---+--+--+ |0|1|...|30|31| |0|1|...|30|31| |0|1|...|30|31| (MSI sets) +-+-+---+--+--+ +-+-+---+--+--+ +-+-+---+--+--+ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ | | | | | | | | | | | | (MSI vectors) | | | | | | | | | | | | (MSI SET0) (MSI SET1) ... (MSI SET7) With 256 MSI vectors supported, the MSI vectors are composed of 8 sets, each set has its own address for MSI message, and supports 32 MSI vectors to generate interrupt. Link: https://lore.kernel.org/r/20210420061723.989-6-jianjun.wang@mediatek.com Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Acked-by: Ryder Lee <ryder.lee@mediatek.com>
| | * | | PCI: mediatek-gen3: Add INTx supportJianjun Wang2021-04-291-0/+172
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add INTx support for MediaTek Gen3 PCIe controller. Link: https://lore.kernel.org/r/20210420061723.989-5-jianjun.wang@mediatek.com Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Acked-by: Ryder Lee <ryder.lee@mediatek.com>
| | * | | PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192Jianjun Wang2021-04-293-0/+480
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MediaTek's PCIe host controller has three generation HWs, the new generation HW is an individual bridge, it supports Gen3 speed and compatible with Gen2, Gen1 speed. Add support for new Gen3 controller which can be found on MT8192. Link: https://lore.kernel.org/r/20210420061723.989-4-jianjun.wang@mediatek.com Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Ryder Lee <ryder.lee@mediatek.com>
| | * | | PCI: Export pci_pio_to_address() for module useJianjun Wang2021-04-201-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This interface will be used by PCI host drivers for PIO translation, export it to support compiling those drivers as kernel modules. Link: https://lore.kernel.org/r/20210420061723.989-3-jianjun.wang@mediatek.com Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
| | * | | PCI: mediatek: Add missing MODULE_DEVICE_TABLEQiheng Lin2021-04-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this driver when it is built as an external module. Link: https://lore.kernel.org/r/20210331085938.3115-1-linqiheng@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Qiheng Lin <linqiheng@huawei.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
| | * | | PCI: mediatek: Configure FC and FTS for functions other than 0Ryder Lee2021-03-291-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "PCI_FUNC(port->slot << 3)" is always 0, so previously mtk_pcie_startup_port() only configured FC credits and FTs for function 0. Compute "func" correctly so we also configure functions other than 0. This affects MT2701 and MT7623. Link: https://lore.kernel.org/r/c529dbfc066f4bda9b87edbdbf771f207e69b84e.1604510053.git.ryder.lee@mediatek.com Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
| * | | Merge branch 'remotes/lorenzo/pci/layerscape'Bjorn Helgaas2021-05-041-1/+1
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Fix ls_pcie_ep_probe() syntax error (comma for semicolon) (Krzysztof Wilczyński) * remotes/lorenzo/pci/layerscape: PCI: layerscape: Correct syntax by changing comma to semicolon
| | * | | PCI: layerscape: Correct syntax by changing comma to semicolonKrzysztof Wilczyński2021-03-221-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace command with a semicolon to correct syntax and to prevent potential unspecified behaviour and/or unintended side effects. Related: https://lore.kernel.org/linux-pci/20201216131944.14990-1-zhengyongjun3@huawei.com/ Co-authored-by: Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20210311033745.1547044-1-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Roy Zang <roy.zang@nxp.com>
| * | | Merge branch 'remotes/lorenzo/pci/iproc'Bjorn Helgaas2021-05-041-1/+1
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Return zero for success of iproc_msi_irq_domain_alloc() (Pali Rohár) * remotes/lorenzo/pci/iproc: PCI: iproc: Fix return value of iproc_msi_irq_domain_alloc()
| | * | | PCI: iproc: Fix return value of iproc_msi_irq_domain_alloc()Pali Rohár2021-03-221-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IRQ domain alloc function should return zero on success. Non-zero value indicates failure. Link: https://lore.kernel.org/r/20210303142202.25780-1-pali@kernel.org Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Acked-by: Ray Jui <ray.jui@broadcom.com> Acked-by: Marc Zyngier <maz@kernel.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-13 08:18:21 +0000