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2021-06-18Merge tag 'pci-v5.13-fixes-2' of ↵Linus Torvalds6-131/+262
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Clear 64-bit flag for host bridge windows below 4GB to fix a resource allocation regression added in -rc1 (Punit Agrawal) - Fix tegra194 MCFG quirk build regressions added in -rc1 (Jon Hunter) - Avoid secondary bus resets on TI KeyStone C667X devices (Antti Järvinen) - Avoid secondary bus resets on some NVIDIA GPUs (Shanker Donthineni) - Work around FLR erratum on Huawei Intelligent NIC VF (Chiqijun) - Avoid broken ATS on AMD Navi14 GPU (Evan Quan) - Trust Broadcom BCM57414 NIC to isolate functions even though it doesn't advertise ACS support (Sriharsha Basavapatna) - Work around AMD RS690 BIOSes that don't configure DMA above 4GB (Mikel Rychliski) - Fix panic during PIO transfer on Aardvark controller (Pali Rohár) * tag 'pci-v5.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: aardvark: Fix kernel panic during PIO transfer PCI: Add AMD RS690 quirk to enable 64-bit DMA PCI: Add ACS quirk for Broadcom BCM57414 NIC PCI: Mark AMD Navi14 GPU ATS as broken PCI: Work around Huawei Intelligent NIC VF FLR erratum PCI: Mark some NVIDIA GPUs to avoid bus reset PCI: Mark TI C667X to avoid bus reset PCI: tegra194: Fix MCFG quirk build regressions PCI: of: Clear 64-bit flag for non-prefetchable memory below 4GB
2021-06-18PCI: aardvark: Fix kernel panic during PIO transferPali Rohár1-9/+40
Trying to start a new PIO transfer by writing value 0 in PIO_START register when previous transfer has not yet completed (which is indicated by value 1 in PIO_START) causes an External Abort on CPU, which results in kernel panic: SError Interrupt on CPU0, code 0xbf000002 -- SError Kernel panic - not syncing: Asynchronous SError Interrupt To prevent kernel panic, it is required to reject a new PIO transfer when previous one has not finished yet. If previous PIO transfer is not finished yet, the kernel may issue a new PIO request only if the previous PIO transfer timed out. In the past the root cause of this issue was incorrectly identified (as it often happens during link retraining or after link down event) and special hack was implemented in Trusted Firmware to catch all SError events in EL3, to ignore errors with code 0xbf000002 and not forwarding any other errors to kernel and instead throw panic from EL3 Trusted Firmware handler. Links to discussion and patches about this issue: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=3c7dcdac5c50 https://lore.kernel.org/linux-pci/20190316161243.29517-1-repk@triplefau.lt/ https://lore.kernel.org/linux-pci/971be151d24312cc533989a64bd454b4@www.loen.fr/ https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/1541 But the real cause was the fact that during link retraining or after link down event the PIO transfer may take longer time, up to the 1.44s until it times out. This increased probability that a new PIO transfer would be issued by kernel while previous one has not finished yet. After applying this change into the kernel, it is possible to revert the mentioned TF-A hack and SError events do not have to be caught in TF-A EL3. Link: https://lore.kernel.org/r/20210608203655.31228-1-pali@kernel.org Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Marek Behún <kabel@kernel.org> Cc: stable@vger.kernel.org # 7fbcb5da811b ("PCI: aardvark: Don't rely on jiffies while holding spinlock")
2021-06-18PCI: Add ACS quirk for Broadcom BCM57414 NICSriharsha Basavapatna1-0/+2
The Broadcom BCM57414 NIC may be a multi-function device. While it does not advertise an ACS capability, peer-to-peer transactions are not possible between the individual functions, so it is safe to treat them as fully isolated. Add an ACS quirk for this device so the functions can be in independent IOMMU groups and attached individually to userspace applications using VFIO. [bhelgaas: commit log] Link: https://lore.kernel.org/r/1621645997-16251-1-git-send-email-michael.chan@broadcom.com Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org
2021-06-18PCI: Mark AMD Navi14 GPU ATS as brokenEvan Quan1-1/+3
Observed unexpected GPU hang during runpm stress test on 0x7341 rev 0x00. Further debugging shows broken ATS is related. Disable ATS on this part. Similar issues on other devices: a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms") 45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken") 5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken") Suggested-by: Alex Deucher <alexander.deucher@amd.com> Link: https://lore.kernel.org/r/20210602021255.939090-1-evan.quan@amd.com Signed-off-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Cc: stable@vger.kernel.org
2021-06-18PCI: Work around Huawei Intelligent NIC VF FLR erratumChiqijun1-0/+65
pcie_flr() starts a Function Level Reset (FLR), waits 100ms (the maximum time allowed for FLR completion by PCIe r5.0, sec 6.6.2), and waits for the FLR to complete. It assumes the FLR is complete when a config read returns valid data. When we do an FLR on several Huawei Intelligent NIC VFs at the same time, firmware on the NIC processes them serially. The VF may respond to config reads before the firmware has completed its reset processing. If we bind a driver to the VF (e.g., by assigning the VF to a virtual machine) in the interval between the successful config read and completion of the firmware reset processing, the NIC VF driver may fail to load. Prevent this driver failure by waiting for the NIC firmware to complete its reset processing. Not all NIC firmware supports this feature. [bhelgaas: commit log] Link: https://support.huawei.com/enterprise/en/doc/EDOC1100063073/87950645/vm-oss-occasionally-fail-to-load-the-in200-driver-when-the-vf-performs-flr Link: https://lore.kernel.org/r/20210414132301.1793-1-chiqijun@huawei.com Signed-off-by: Chiqijun <chiqijun@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Cc: stable@vger.kernel.org
2021-06-18PCI: Mark some NVIDIA GPUs to avoid bus resetShanker Donthineni1-0/+12
Some NVIDIA GPU devices do not work with SBR. Triggering SBR leaves the device inoperable for the current system boot. It requires a system hard-reboot to get the GPU device back to normal operating condition post-SBR. For the affected devices, enable NO_BUS_RESET quirk to avoid the issue. This issue will be fixed in the next generation of hardware. Link: https://lore.kernel.org/r/20210608054857.18963-8-ameynarkhede03@gmail.com Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Sinan Kaya <okaya@kernel.org> Cc: stable@vger.kernel.org
2021-06-18PCI: Mark TI C667X to avoid bus resetAntti Järvinen1-0/+10
Some TI KeyStone C667X devices do not support bus/hot reset. The PCIESS automatically disables LTSSM when Secondary Bus Reset is received and device stops working. Prevent bus reset for these devices. With this change, the device can be assigned to VMs with VFIO, but it will leak state between VMs. Reference: https://e2e.ti.com/support/processors/f/791/t/954382 Link: https://lore.kernel.org/r/20210315102606.17153-1-antti.jarvinen@gmail.com Signed-off-by: Antti Järvinen <antti.jarvinen@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com> Cc: stable@vger.kernel.org
2021-06-18PCI: tegra194: Fix MCFG quirk build regressionsJon Hunter3-121/+128
7f100744749e ("PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata") caused a few build regressions: - 7f100744749e removed the Makefile rule for CONFIG_PCIE_TEGRA194, so pcie-tegra.c can no longer be built as a module. Restore that rule. - 7f100744749e added "#ifdef CONFIG_PCIE_TEGRA194" around the native driver, but that's only set when the driver is built-in (for a module, CONFIG_PCIE_TEGRA194_MODULE is defined). The ACPI quirk is completely independent of the rest of the native driver, so move the quirk to its own file and remove the #ifdef in the native driver. - 7f100744749e added symbols that are always defined but used only when CONFIG_PCIEASPM, which causes warnings when CONFIG_PCIEASPM is not set: drivers/pci/controller/dwc/pcie-tegra194.c:259:18: warning: ‘event_cntr_data_offset’ defined but not used [-Wunused-const-variable=] drivers/pci/controller/dwc/pcie-tegra194.c:250:18: warning: ‘event_cntr_ctrl_offset’ defined but not used [-Wunused-const-variable=] drivers/pci/controller/dwc/pcie-tegra194.c:243:27: warning: ‘pcie_gen_freq’ defined but not used [-Wunused-const-variable=] Fixes: 7f100744749e ("PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata") Link: https://lore.kernel.org/r/20210610064134.336781-1-jonathanh@nvidia.com Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thierry Reding <treding@nvidia.com>
2021-06-18PCI: of: Clear 64-bit flag for non-prefetchable memory below 4GBPunit Agrawal1-0/+2
Alexandru and Qu reported this resource allocation failure on ROCKPro64 v2 and ROCK Pi 4B, both based on the RK3399: pci_bus 0000:00: root bus resource [mem 0xfa000000-0xfbdfffff 64bit] pci 0000:00:00.0: PCI bridge to [bus 01] pci 0000:00:00.0: BAR 14: no space for [mem size 0x00100000] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00003fff 64bit] "BAR 14" is the PCI bridge's 32-bit non-prefetchable window, and our PCI allocation code isn't smart enough to allocate it in a host bridge window marked as 64-bit, even though this should work fine. A DT host bridge description includes the windows from the CPU address space to the PCI bus space. On a few architectures (microblaze, powerpc, sparc), the DT may also describe PCI devices themselves, including their BARs. Before 9d57e61bf723 ("of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses"), of_bus_pci_get_flags() ignored the fact that some DT addresses described 64-bit windows and BARs. That was a problem because the virtio virtual NIC has a 32-bit BAR and a 64-bit BAR, and the driver couldn't distinguish them. 9d57e61bf723 set IORESOURCE_MEM_64 for those 64-bit DT ranges, which fixed the virtio driver. But it also set IORESOURCE_MEM_64 for host bridge windows, which exposed the fact that the PCI allocator isn't smart enough to put 32-bit resources in those 64-bit windows. Clear IORESOURCE_MEM_64 from host bridge windows since we don't need that information. Suggested-by: Bjorn Helgaas <bhelgaas@google.com> Fixes: 9d57e61bf723 ("of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses") Link: https://lore.kernel.org/r/20210614230457.752811-1-punitagrawal@gmail.com Reported-at: https://lore.kernel.org/lkml/7a1e2ebc-f7d8-8431-d844-41a9c36a8911@arm.com/ Reported-at: https://lore.kernel.org/lkml/YMyTUv7Jsd89PGci@m4/T/#u Reported-by: Alexandru Elisei <alexandru.elisei@arm.com> Reported-by: Qu Wenruo <wqu@suse.com> Tested-by: Alexandru Elisei <alexandru.elisei@arm.com> Tested-by: Domenico Andreoli <domenico.andreoli@linux.com> Signed-off-by: Punit Agrawal <punitagrawal@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Ard Biesheuvel <ardb@kernel.org>
2021-05-26PCI/MSI: Fix MSIs for generic hosts that use device-tree's "msi-map"Jean-Philippe Brucker2-1/+9
Since commit 9ec37efb8783 ("PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains"), platforms that rely on the "msi-map" device-tree property don't get MSIs anymore. On the Arm Fast Model for example [1], the host bridge doesn't have a "msi-parent" property since it doesn't itself generate MSIs, and so doesn't get a MSI domain. It has an "msi-map" property instead to describe MSI controllers of child devices. As a result, due to the new msi_domain check in pci_register_host_bridge(), the whole bus gets PCI_BUS_FLAGS_NO_MSI. Check whether the root complex has an "msi-map" property before giving up on MSIs. [1] arch/arm64/boot/dts/arm/fvp-base-revc.dts Fixes: 9ec37efb8783 ("PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains") Link: https://lore.kernel.org/r/20210510173129.750496-1-jean-philippe@linaro.org Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Marc Zyngier <maz@kernel.org>
2021-05-07Merge tag 's390-5.13-2' of ↵Linus Torvalds1-1/+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()
2021-05-05Merge tag 'pci-v5.13-changes' of ↵Linus Torvalds55-1138/+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 ...
2021-05-04Merge tag 'dmaengine-5.13-rc1' of ↵Linus Torvalds1-0/+30
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine updates from Vinod Koul: "New drivers/devices: - Support for QCOM SM8150 GPI DMA Updates: - Big pile of idxd updates including support for performance monitoring - Support in dw-edma for interleaved dma - Support for synchronize() in Xilinx driver" * tag 'dmaengine-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (42 commits) dmaengine: idxd: Enable IDXD performance monitor support dmaengine: idxd: Add IDXD performance monitor support dmaengine: idxd: remove MSIX masking for interrupt handlers dmaengine: idxd: device cmd should use dedicated lock dmaengine: idxd: support reporting of halt interrupt dmaengine: idxd: enable SVA feature for IOMMU dmaengine: idxd: convert sprintf() to sysfs_emit() for all usages dmaengine: idxd: add interrupt handle request and release support dmaengine: idxd: add support for readonly config mode dmaengine: idxd: add percpu_ref to descriptor submission path dmaengine: idxd: remove detection of device type dmaengine: idxd: iax bus removal dmaengine: idxd: fix cdev setup and free device lifetime issues dmaengine: idxd: fix group conf_dev lifetime dmaengine: idxd: fix engine conf_dev lifetime dmaengine: idxd: fix wq conf_dev 'struct device' lifetime dmaengine: idxd: fix idxd conf_dev 'struct device' lifetime dmaengine: idxd: use ida for device instance enumeration dmaengine: idxd: removal of pcim managed mmio mapping dmaengine: idxd: cleanup pci interrupt vector allocation management ...
2021-05-04Merge branch 'stable/for-linus-5.13' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb Pull swiotlb updates from Konrad Rzeszutek Wilk: "Christoph Hellwig has taken a cleaver and trimmed off the not-needed code and nicely folded duplicate code in the generic framework. This lays the groundwork for more work to add extra DMA-backend-ish in the future. Along with that some bug-fixes to make this a nice working package" * 'stable/for-linus-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: swiotlb: don't override user specified size in swiotlb_adjust_size swiotlb: Fix the type of index swiotlb: Make SWIOTLB_NO_FORCE perform no allocation ARM: Qualify enabling of swiotlb_init() swiotlb: remove swiotlb_nr_tbl swiotlb: dynamically allocate io_tlb_default_mem swiotlb: move global variables into a new io_tlb_mem structure xen-swiotlb: remove the unused size argument from xen_swiotlb_fixup xen-swiotlb: split xen_swiotlb_init swiotlb: lift the double initialization protection from xen-swiotlb xen-swiotlb: remove xen_io_tlb_start and xen_io_tlb_nslabs xen-swiotlb: remove xen_set_nslabs xen-swiotlb: use io_tlb_end in xen_swiotlb_dma_supported xen-swiotlb: use is_swiotlb_buffer in is_xen_swiotlb_buffer swiotlb: split swiotlb_tbl_sync_single swiotlb: move orig addr and size validation into swiotlb_bounce swiotlb: remove the alloc_size parameter to swiotlb_tbl_unmap_single powerpc/svm: stop using io_tlb_start
2021-05-04Merge branch 'pci/tegra'Bjorn Helgaas2-1/+103
- Add MCFG quirks for Tegra194 ECAM errata (Vidya Sagar) * pci/tegra: PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata
2021-05-04Merge branch 'pci/brcmstb'Bjorn Helgaas1-6/+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()
2021-05-04Merge branch 'remotes/lorenzo/pci/misc'Bjorn Helgaas1-2/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/msi'Bjorn Helgaas10-540/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/xilinx'Bjorn Helgaas1-0/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/xgene'Bjorn Helgaas1-1/+2
- Fix cfg resource mapping regression (Dejin Zheng) * remotes/lorenzo/pci/xgene: PCI: xgene: Fix cfg resource mapping
2021-05-04Merge branch 'remotes/lorenzo/pci/vmd'Bjorn Helgaas1-12/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/tegra'Bjorn Helgaas2-4/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/risc-v'Bjorn Helgaas3-0/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/microchip'Bjorn Helgaas1-7/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/mediatek'Bjorn Helgaas5-1/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/layerscape'Bjorn Helgaas1-1/+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
2021-05-04Merge branch 'remotes/lorenzo/pci/iproc'Bjorn Helgaas1-1/+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()
2021-05-04Merge branch 'remotes/lorenzo/pci/endpoint'Bjorn Helgaas2-8/+14
- Fix NULL pointer dereference when epc_features not implemented (Shradha Todi) - Remove redundant initialization (Colin Ian King) - Add missing destroy_workqueue() in endpoint test (Yang Yingliang) * remotes/lorenzo/pci/endpoint: PCI: endpoint: Fix missing destroy_workqueue() PCI: endpoint: Remove redundant initialization of pointer dev PCI: endpoint: Fix NULL pointer dereference for ->get_features()
2021-05-04Merge branch 'remotes/lorenzo/pci/dwc'Bjorn Helgaas6-10/+16
- Use generic config accessors for TI AM65x (K3) to fix regression (Kishon Vijay Abraham I) - Move MSI Receiver init to dw_pcie_host_init() so it is re-initialized along with the RC in resume (Jisheng Zhang) - Remove unused pcie_app_rd() (Jiapeng Chong) - Move iATU detection earlier to fix regression (Hou Zhiqiang) * remotes/lorenzo/pci/dwc: PCI: dwc: Move iATU detection earlier PCI: dwc/intel-gw: Remove unused function PCI: dwc: Move dw_pcie_msi_init() to dw_pcie_setup_rc() PCI: keystone: Let AM65 use the pci_ops defined in pcie-designware-host.c
2021-05-04Merge branch 'remotes/lorenzo/pci/cadence'Bjorn Helgaas1-1/+21
- 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) * remotes/lorenzo/pci/cadence: PCI: j721e: Add support to provide refclk to PCIe connector dt-bindings: PCI: ti,j721e: Add endpoint mode dt-bindings for TI's AM64 SoC dt-bindings: PCI: ti,j721e: Add host mode dt-bindings for TI's AM64 SoC dt-bindings: PCI: ti,j721e: Add binding to represent refclk to the connector
2021-05-04Merge branch 'remotes/lorenzo/pci/brcmstb'Bjorn Helgaas1-0/+1
- Fix brcm_pcie_probe() error return for unsupported revision (Wei Yongjun) * remotes/lorenzo/pci/brcmstb: PCI: brcmstb: Fix error return code in brcm_pcie_probe()
2021-05-04Merge branch 'remotes/lorenzo/pci/altera-msi'Bjorn Helgaas1-3/+1
- Remove redundant dev_err() for devm_ioremap_resource() failure (Chen Hui) * remotes/lorenzo/pci/altera-msi: PCI: altera-msi: Remove redundant dev_err call in altera_msi_probe()
2021-05-04Merge branch 'pci/misc'Bjorn Helgaas6-9/+27
- Fix compile testing of al driver without CONFIG_PCI_ECAM (Arnd Bergmann) - Fix compile testing of thunder drivers (Arnd Bergmann) - Fix "no symbols" warnings when compile testing al, thunder driver with CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann) - Remove unused MicroGate SyncLink device IDs (Jiri Slaby) - Remove unused alloc_pci_root_info() return value (Krzysztof Wilczyński) * pci/misc: x86/PCI: Remove unused alloc_pci_root_info() return value PCI: Remove MicroGate SyncLink device IDs PCI: Avoid building empty drivers PCI: thunder: Fix compile testing PCI: al: Select CONFIG_PCI_ECAM
2021-05-04Merge branch 'pci/virtualization'Bjorn Helgaas1-0/+1
- Increase delay after FLR to work around Intel DC P4510 NVMe erratum (Raphael Norwitz) * pci/virtualization: PCI: Delay after FLR of Intel DC P4510 NVMe
2021-05-04Merge branch 'pci/kernel-doc'Bjorn Helgaas10-20/+47
- Fix kernel-doc warnings (Krzysztof Wilczyński) * pci/kernel-doc: PCI: Fix kernel-doc errors
2021-05-04Merge branch 'pci/sysfs'Bjorn Helgaas5-348/+206
- Convert sysfs "config", "rom", "reset", "label", "index", "acpi_index" to static attributes to 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) * pci/sysfs: PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions PCI/sysfs: Rearrange smbios_attr_group and acpi_attr_group PCI/sysfs: Tidy SMBIOS & ACPI label attributes PCI/sysfs: Convert "index", "acpi_index", "label" to static attributes PCI/sysfs: Define SMBIOS label attributes with DEVICE_ATTR*() PCI/sysfs: Define ACPI label attributes with DEVICE_ATTR*() PCI/sysfs: Rename device_has_dsm() to device_has_acpi_name() PCI/sysfs: Convert "vpd" to static attribute PCI/sysfs: Rename "vpd" attribute accessors PCI/sysfs: Convert "reset" to static attribute PCI/sysfs: Convert "rom" to static attribute PCI/sysfs: Convert "config" to static attribute
2021-05-04Merge branch 'pci/vpd'Bjorn Helgaas2-141/+35
- 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) * pci/vpd: 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() PCI/VPD: Remove sysfs accessor size checking dead code PCI/VPD: Remove obsolete Broadcom NIC quirk
2021-05-04Merge branch 'pci/pm'Bjorn Helgaas1-1/+1
- Fix acpi_pci_set_power_state() debug message (Rafael J. Wysocki) * pci/pm: PCI/ACPI: Fix acpi_pci_set_power_state() debug message
2021-05-04Merge branch 'pci/hotplug'Bjorn Helgaas4-11/+3
- Fix acpiphp reference count leak (Feilong Lin) * pci/hotplug: PCI: acpiphp: Fix whitespace issue PCI: shpchp: Remove unused shpc_writeb() PCI: cpqphp: Use DEFINE_SPINLOCK() for int15_lock ACPI / hotplug / PCI: Fix reference count leak in enable_slot()
2021-05-04Merge branch 'pci/error'Bjorn Helgaas1-1/+1
- Fix RCiEP device to RCEC association (Qiuxu Zhuo) * pci/error: PCI/RCEC: Fix RCiEP device to RCEC association
2021-05-04PCI: fu740: Add SiFive FU740 PCIe host controller driverPaul Walmsley3-0/+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>
2021-05-03PCI: brcmstb: Use reset/rearm instead of deassert/assertJim Quinlan1-6/+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>
2021-04-30PCI: Allow VPD access for QLogic ISP2722Arun Easi1-1/+0
0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") disabled access to VPD of the ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter because reading past the end of the VPD caused NMIs. 104daa71b396 ("PCI: Determine actual VPD size on first access") limits reads to the actual size of VPD, which should prevent these NMIs. 104daa71b396 was merged *before* 0d5370d1d852, but we think the testing that prompted 0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") was done with a kernel that lacked 104daa71b396. See [1, 2]. Remove the quirk added by 0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") so customers can read the HBA VPD. [1] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2012161641230.28924@irv1user01.caveonetworks.com/ [2] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2104071535110.13940@irv1user01.caveonetworks.com/ [bhelgaas: commit log] Link: https://lore.kernel.org/r/20210409215153.16569-2-aeasi@marvell.com Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v4.6+
2021-04-30PCI/VPD: Add helper pci_get_func0_dev()Heiner Kallweit1-5/+8
Factor out the "get function 0" logic into pci_get_func0_dev(). [bhelgaas: keep PCI_DEVFN(PCI_SLOT()) instead of exposing implementation details, commit log] Link: https://lore.kernel.org/r/75d1f619-8a35-690d-8fc8-e851264a4bbb@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-04-30PCI/VPD: Remove pci_vpd_find_tag() SRDT handlingHeiner Kallweit1-25/+6
Only SRDT tag is the end tag, and no caller is interested in it. This allows to remove all SRDT tag handling. Link: https://lore.kernel.org/r/3f63f06f-734f-8fff-9518-27fe1faf903d@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-04-30PCI/VPD: Remove pci_vpd_find_tag() 'offset' argumentHeiner Kallweit1-2/+2
All callers pass 0 as offset. Therefore remove the parameter and use a fixed offset 0 in pci_vpd_find_tag(). Link: https://lore.kernel.org/r/f62e6e19-5423-2ead-b2bd-62844b23ef8f@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-04-30PCI/VPD: Change pci_vpd_init() return type to voidHeiner Kallweit2-5/+4
pci_init_capabilities() is the only caller and doesn't use the return value. So let's change the return type to void. Link: https://lore.kernel.org/r/663ec440-8375-1459-ddb4-98ea76e75917@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-04-30PCI/VPD: Make missing VPD message less alarmingHeiner Kallweit1-2/+6
Realtek RTL8169/8168/8125 NIC families indicate VPD capability and an optional VPD EEPROM can be connected via I2C/SPI. However I haven't seen any card or system with such a VPD EEPROM yet. The missing EEPROM causes the following warning whenever e.g. lscpi -vv is executed. invalid short VPD tag 00 at offset 01 The warning confuses users, and I think we should handle the situation more gently. Therefore, if first VPD byte is read as 0x00, assume a missing optional VPD PROM and replace the warning with a more descriptive message at info level. [bhelgaas: fix pre-existing whitespace] Link: https://lore.kernel.org/r/ccbc11f1-4dbb-e2c8-d0ea-559e06d4c340@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-04-30PCI/VPD: Remove pci_set_vpd_size()Heiner Kallweit1-45/+13
24a1720a0841 ("cxgb4: collect serial config version from register") removed the only usage of pci_set_vpd_size(). If a device needs to override the auto-detected VPD size, then this can be done with a PCI quirk, as is done for Chelsio devices. There's no need to allow drivers to change the VPD size. Remove pci_set_vpd_size(). [bhelgaas: squash in Arnd's fix for "'pci_vpd_set_size' defined but not used" from https://lore.kernel.org/r/20210421140334.3847155-1-arnd@kernel.org] Link: https://lore.kernel.org/r/47d86e52-9bcf-7da7-1edb-0d988a7a82ab@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
2021-04-30mm/vmalloc: remove unmap_kernel_rangeNicholas Piggin1-1/+1
This is a shim around vunmap_range, get rid of it. Move the main API comment from the _noflush variant to the normal variant, and make _noflush internal to mm/. [npiggin@gmail.com: fix nommu builds and a comment bug per sfr] Link: https://lkml.kernel.org/r/1617292598.m6g0knx24s.astroid@bobo.none [akpm@linux-foundation.org: move vunmap_range_noflush() stub inside !CONFIG_MMU, not !CONFIG_NUMA] [npiggin@gmail.com: fix nommu builds] Link: https://lkml.kernel.org/r/1617292497.o1uhq5ipxp.astroid@bobo.none Link: https://lkml.kernel.org/r/20210322021806.892164-5-npiggin@gmail.com Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Cédric Le Goater <clg@kaod.org> Cc: Uladzislau Rezki <urezki@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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