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2020-11-18PCI: mvebu: Fix duplicate resource requestsRob Herring
[ Upstream commit 832ea234277a2465ec6602fa6a4db5cd9ee87ae3 ] With commit 669cbc708122 ("PCI: Move DT resource setup into devm_pci_alloc_host_bridge()"), the DT 'ranges' is parsed and populated into resources when the host bridge is allocated. The resources are requested as well, but that happens a second time for the mvebu driver in mvebu_pcie_parse_request_resources(). We should only be requesting the additional resources added in mvebu_pcie_parse_request_resources(). These are not added by default because they use custom properties rather than standard DT address translation. Also, the bus ranges was also populated by default, so we can remove it from mvebu_pci_host_probe(). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=209729 Fixes: 669cbc708122 ("PCI: Move DT resource setup into devm_pci_alloc_host_bridge()") Link: https://lore.kernel.org/r/20201023145252.2691779-1-robh@kernel.org Reported-by: vtolkm@googlemail.com Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18PCI: Always enable ACS even if no ACS CapabilityRajat Jain
[ Upstream commit 462b58fb033996e999cc213ed0b430d4f22a28fe ] Some devices support ACS functionality even though they don't have a spec-compliant ACS Capability; pci_enable_acs() has a quirk mechanism to handle them. We want to enable ACS whenever possible, but 52fbf5bdeeef ("PCI: Cache ACS capability offset in device") inadvertently broke this by calling pci_enable_acs() only if we find an ACS Capability. This resulted in ACS not being enabled for these non-compliant devices, which means devices can't be separated into different IOMMU groups, which in turn means we may not be able to pass those devices through to VMs, as reported by Boris V: https://lore.kernel.org/r/74aeea93-8a46-5f5a-343c-790d4c655da3@bstnet.org Fixes: 52fbf5bdeeef ("PCI: Cache ACS capability offset in device") Link: https://lore.kernel.org/r/20201028231545.4116866-1-rajatja@google.com Reported-by: Boris V <borisvk@bstnet.org> Signed-off-by: Rajat Jain <rajatja@google.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05PCI: qcom: Make sure PCIe is reset before init for rev 2.1.0Ansuel Smith
commit d3d4d028afb785e52c55024d779089654f8302e7 upstream. Qsdk U-Boot can incorrectly leave the PCIe interface in an undefined state if bootm command is used instead of bootipq. This is caused by the not deinit of PCIe when bootm is called. Reset the PCIe before init anyway to fix this U-Boot bug. Link: https://lore.kernel.org/r/20200901124955.137-1-ansuelsmth@gmail.com Fixes: 82a823833f4e ("PCI: qcom: Add Qualcomm PCIe controller driver") Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-05PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPILukas Wunner
commit c6e331312ebfb52b7186e5d82d517d68b4d2f2d8 upstream. Recent laptops with dual AMD GPUs fail to suspend the discrete GPU, thus causing lockups on system sleep and high power consumption at runtime. The discrete GPU would normally be suspended to D3cold by turning off ACPI _PR3 Power Resources of the Root Port above the GPU. However on affected systems, the Root Port is hotplug-capable and pci_bridge_d3_possible() only allows hotplug ports to go to D3 if they belong to a Thunderbolt device or if the Root Port possesses a "HotPlugSupportInD3" ACPI property. Neither is the case on affected laptops. The reason for whitelisting only specific, known to work hotplug ports for D3 is that there have been reports of SkyLake Xeon-SP systems raising Hardware Error NMIs upon suspending their hotplug ports: https://lore.kernel.org/linux-pci/20170503180426.GA4058@otc-nc-03/ But if a hotplug port is power manageable by ACPI (as can be detected through presence of Power Resources and corresponding _PS0 and _PS3 methods) then it ought to be safe to suspend it to D3. To this end, amend acpi_pci_bridge_d3() to whitelist such ports for D3. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1222 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1252 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1304 Reported-and-tested-by: Arthur Borsboom <arthurborsboom@gmail.com> Reported-and-tested-by: matoro <matoro@airmail.cc> Reported-by: Aaron Zakhrov <aaron.zakhrov@gmail.com> Reported-by: Michal Rostecki <mrostecki@suse.com> Reported-by: Shai Coleman <git@shaicoleman.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Acked-by: Alex Deucher <alexander.deucher@amd.com> Cc: 5.4+ <stable@vger.kernel.org> # 5.4+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-05PCI/ACPI: Add Ampere Altra SOC MCFG quirkTuan Phan
[ Upstream commit 877c1a5f79c6984bbe3f2924234c08e2f4f1acd5 ] Ampere Altra SOC supports only 32-bit ECAM reads. Add an MCFG quirk for the platform. Link: https://lore.kernel.org/r/1596751055-12316-1-git-send-email-tuanphan@os.amperecomputing.com Signed-off-by: Tuan Phan <tuanphan@os.amperecomputing.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-01PCI: aardvark: Fix initialization with old Marvell's Arm Trusted FirmwarePali Rohár
commit b0c6ae0f8948a2be6bf4e8b4bbab9ca1343289b6 upstream. Old ATF automatically power on pcie phy and does not provide SMC call for phy power on functionality which leads to aardvark initialization failure: [ 0.330134] mvebu-a3700-comphy d0018300.phy: unsupported SMC call, try updating your firmware [ 0.338846] phy phy-d0018300.phy.1: phy poweron failed --> -95 [ 0.344753] advk-pcie d0070000.pcie: Failed to initialize PHY (-95) [ 0.351160] advk-pcie: probe of d0070000.pcie failed with error -95 This patch fixes above failure by ignoring 'not supported' error in aardvark driver. In this case it is expected that phy is already power on. Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com> Link: https://lore.kernel.org/r/20200902144344.16684-3-pali@kernel.org Fixes: 366697018c9a ("PCI: aardvark: Add PHY support") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org> Cc: <stable@vger.kernel.org> # 5.8+: ea17a0f153af: phy: marvell: comphy: Convert internal SMCC firmware return codes to errno Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29PCI: hv: Fix hibernation in case interrupts are not re-createdDexuan Cui
[ Upstream commit 915cff7f38c5e4d47f187f8049245afc2cb3e503 ] pci_restore_msi_state() directly writes the MSI/MSI-X related registers via MMIO. On a physical machine, this works perfectly; for a Linux VM running on a hypervisor, which typically enables IOMMU interrupt remapping, the hypervisor usually should trap and emulate the MMIO accesses in order to re-create the necessary interrupt remapping table entries in the IOMMU, otherwise the interrupts can not work in the VM after hibernation. Hyper-V is different from other hypervisors in that it does not trap and emulate the MMIO accesses, and instead it uses a para-virtualized method, which requires the VM to call hv_compose_msi_msg() to notify the hypervisor of the info that would be passed to the hypervisor in the case of the trap-and-emulate method. This is not an issue to a lot of PCI device drivers, which destroy and re-create the interrupts across hibernation, so hv_compose_msi_msg() is called automatically. However, some PCI device drivers (e.g. the in-tree GPU driver nouveau and the out-of-tree Nvidia proprietary GPU driver) do not destroy and re-create MSI/MSI-X interrupts across hibernation, so hv_pci_resume() has to call hv_compose_msi_msg(), otherwise the PCI device drivers can no longer receive interrupts after the VM resumes from hibernation. Hyper-V is also different in that chip->irq_unmask() may fail in a Linux VM running on Hyper-V (on a physical machine, chip->irq_unmask() can not fail because unmasking an MSI/MSI-X register just means an MMIO write): during hibernation, when a CPU is offlined, the kernel tries to move the interrupt to the remaining CPUs that haven't been offlined yet. In this case, hv_irq_unmask() -> hv_do_hypercall() always fails because the vmbus channel has been closed: here the early "return" in hv_irq_unmask() means the pci_msi_unmask_irq() is not called, i.e. the desc->masked remains "true", so later after hibernation, the MSI interrupt always remains masked, which is incorrect. Refer to cpu_disable_common() -> fixup_irqs() -> irq_migrate_all_off_this_cpu() -> migrate_one_irq(): static bool migrate_one_irq(struct irq_desc *desc) { ... if (maskchip && chip->irq_mask) chip->irq_mask(d); ... err = irq_do_set_affinity(d, affinity, false); ... if (maskchip && chip->irq_unmask) chip->irq_unmask(d); Fix the issue by calling pci_msi_unmask_irq() unconditionally in hv_irq_unmask(). Also suppress the error message for hibernation because the hypercall failure during hibernation does not matter (at this time all the devices have been frozen). Note: the correct affinity info is still updated into the irqdata data structure in migrate_one_irq() -> irq_do_set_affinity() -> hv_set_affinity(), so later when the VM resumes, hv_pci_restore_msi_state() is able to correctly restore the interrupt with the correct affinity. Link: https://lore.kernel.org/r/20201002085158.9168-1-decui@microsoft.com Fixes: ac82fc832708 ("PCI: hv: Add hibernation support") Signed-off-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Jake Oshins <jakeo@microsoft.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29PCI/IOV: Mark VFs as not implementing PCI_COMMAND_MEMORYMatthew Rosato
[ Upstream commit 12856e7acde4702b7c3238c15fcba86ff6aa507f ] For VFs, the Memory Space Enable bit in the Command Register is hard-wired to 0. Add a new bit to signify devices where the Command Register Memory Space Enable bit does not control the device's response to MMIO accesses. Fixes: abafbc551fdd ("vfio-pci: Invalidate mmaps and block MMIO access on disabled memory") Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29PCI: iproc: Set affinity mask on MSI interruptsMark Tomlinson
[ Upstream commit eb7eacaa5b9e4f665bd08d416c8f88e63d2f123c ] The core interrupt code expects the irq_set_affinity call to update the effective affinity for the interrupt. This was not being done, so update iproc_msi_irq_set_affinity() to do so. Link: https://lore.kernel.org/r/20200803035241.7737-1-mark.tomlinson@alliedtelesis.co.nz Fixes: 3bc2b2348835 ("PCI: iproc: Add iProc PCIe MSI support") Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29PCI: aardvark: Check for errors from pci_bridge_emul_init() callPali Rohár
[ Upstream commit 7862a6134456c8b4f8c39e8c94aa97e5c2f7f2b7 ] Function pci_bridge_emul_init() may fail so correctly check for errors. Link: https://lore.kernel.org/r/20200907111038.5811-3-pali@kernel.org Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Marek Behún <marek.behun@nic.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29PCI: aardvark: Fix compilation on s390Pali Rohár
[ Upstream commit b32c012e4b98f0126aa327be2d1f409963057643 ] Include linux/gpio/consumer.h instead of linux/gpio.h, as is said in the latter file. This was reported by kernel test bot when compiling for s390. drivers/pci/controller/pci-aardvark.c:350:2: error: implicit declaration of function 'gpiod_set_value_cansleep' [-Werror,-Wimplicit-function-declaration] drivers/pci/controller/pci-aardvark.c:1074:21: error: implicit declaration of function 'devm_gpiod_get_from_of_node' [-Werror,-Wimplicit-function-declaration] drivers/pci/controller/pci-aardvark.c:1076:14: error: use of undeclared identifier 'GPIOD_OUT_LOW' Link: https://lore.kernel.org/r/202006211118.LxtENQfl%25lkp@intel.com Link: https://lore.kernel.org/r/20200907111038.5811-2-pali@kernel.org Fixes: 5169a9851daa ("PCI: aardvark: Issue PERST via GPIO") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Marek Behún <marek.behun@nic.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-29PCI: designware-ep: Fix the Header Type checkHou Zhiqiang
[ Upstream commit 16270a92355722e387e9ca19627c5a4d7bae1354 ] The current check will result in the multiple function device fails to initialize. So fix the check by masking out the multiple function bit. Link: https://lore.kernel.org/r/20200818092746.24366-1-Zhiqiang.Hou@nxp.com Fixes: 0b24134f7888 ("PCI: dwc: Add validation that PCIe core is set to correct mode") Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-02Merge tag 'pci-v5.9-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Fix rockchip regression in rockchip_pcie_valid_device() (Lorenzo Pieralisi) - Add Pali Rohár as aardvark PCI maintainer (Pali Rohár) * tag 'pci-v5.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: MAINTAINERS: Add Pali Rohár as aardvark PCI maintainer PCI: rockchip: Fix bus checks in rockchip_pcie_valid_device()
2020-09-08PCI: rockchip: Fix bus checks in rockchip_pcie_valid_device()Lorenzo Pieralisi
The root bus checks rework in d84c572de1a3 ("PCI: rockchip: Use pci_is_root_bus() to check if bus is root bus") caused a regression whereby in rockchip_pcie_valid_device() if the bus parameter is the root bus and the dev value == 0, the function should return 1 (ie true) without checking if the bus->parent pointer is a root bus because that triggers a NULL pointer dereference. Fix this by streamlining the root bus detection. Fixes: d84c572de1a3 ("PCI: rockchip: Use pci_is_root_bus() to check if bus is root bus") Link: https://lore.kernel.org/r/20200904140904.944-1-lorenzo.pieralisi@arm.com Reported-by: Samuel Dionne-Riel <samuel@dionne-riel.com> Tested-by: Samuel Dionne-Riel <samuel@dionne-riel.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rob Herring <robh@kernel.org> Cc: Shawn Lin <shawn.lin@rock-chips.com>
2020-08-23treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-22Merge tag 's390-5.9-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - a couple of fixes for storage key handling relevant for debugging - add cond_resched into potentially slow subchannels scanning loop - fixes for PF/VF linking and to ignore stale PCI configuration request events * tag 's390-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: fix PF/VF linking on hot plug s390/pci: re-introduce zpci_remove_device() s390/pci: fix zpci_bus_link_virtfn() s390/ptrace: fix storage key handling s390/runtime_instrumentation: fix storage key handling s390/pci: ignore stale configuration request event s390/cio: add cond_resched() in the slow_eval_known_fn() loop
2020-08-17PCI/P2PDMA: Fix build without DMA opsChristoph Hellwig
My commit to make DMA ops support optional missed the reference in the p2pdma code. And while the build bot didn't manage to find a config where this can happen, Matthew did. Fix this by replacing two IS_ENABLED checks with ifdefs. Fixes: 2f9237d4f6df ("dma-mapping: make support for dma ops optional") Link: https://lore.kernel.org/r/20200810124843.1532738-1-hch@lst.de Reported-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
2020-08-17s390/pci: re-introduce zpci_remove_device()Niklas Schnelle
For fixing the PF to VF link removal we need to perform some action on every removal of a zdev from the common PCI subsystem. So in preparation re-introduce zpci_remove_device() and use that instead of directly calling the common code functions. This was actually still declared from earlier code but no longer implemented. 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>
2020-08-07Merge tag 'pci-v5.9-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Fix pci_cfg_wait queue locking problem (Bjorn Helgaas) - Convert PCIe capability PCIBIOS errors to errno (Bolarinwa Olayemi Saheed) - Align PCIe capability and PCI accessor return values (Bolarinwa Olayemi Saheed) - Fix pci_create_slot() reference count leak (Qiushi Wu) - Announce device after early fixups (Tiezhu Yang) PCI device hotplug: - Make rpadlpar functions static (Wei Yongjun) Driver binding: - Add device even if driver attach failed (Rajat Jain) Virtualization: - xen: Remove redundant initialization of irq (Colin Ian King) IOMMU: - Add pci_pri_supported() to check device or associated PF (Ashok Raj) - Release IVRS table in AMD ACS quirk (Hanjun Guo) - Mark AMD Navi10 GPU rev 0x00 ATS as broken (Kai-Heng Feng) - Treat "external-facing" devices themselves as internal (Rajat Jain) MSI: - Forward MSI-X error code in pci_alloc_irq_vectors_affinity() (Piotr Stankiewicz) Error handling: - Clear PCIe Device Status errors only if OS owns AER (Jonathan Cameron) - Log correctable errors as warning, not error (Matt Jolly) - Use 'pci_channel_state_t' instead of 'enum pci_channel_state' (Luc Van Oostenryck) Peer-to-peer DMA: - Allow P2PDMA on AMD Zen and newer CPUs (Logan Gunthorpe) ASPM: - Add missing newline in sysfs 'policy' (Xiongfeng Wang) Native PCIe controllers: - Convert to devm_platform_ioremap_resource_byname() (Dejin Zheng) - Convert to devm_platform_ioremap_resource() (Dejin Zheng) - Remove duplicate error message from devm_pci_remap_cfg_resource() callers (Dejin Zheng) - Fix runtime PM imbalance on error (Dinghao Liu) - Remove dev_err() when handing an error from platform_get_irq() (Krzysztof Wilczyński) - Use pci_host_bridge.windows list directly instead of splicing in a temporary list for cadence, mvebu, host-common (Rob Herring) - Use pci_host_probe() instead of open-coding all the pieces for altera, brcmstb, iproc, mobiveil, rcar, rockchip, tegra, v3, versatile, xgene, xilinx, xilinx-nwl (Rob Herring) - Default host bridge parent device to the platform device (Rob Herring) - Use pci_is_root_bus() instead of tracking root bus number separately in aardvark, designware (imx6, keystone, designware-host), mobiveil, xilinx-nwl, xilinx, rockchip, rcar (Rob Herring) - Set host bridge bus number in pci_scan_root_bus_bridge() instead of each driver for aardvark, designware-host, host-common, mediatek, rcar, tegra, v3-semi (Rob Herring) - Move DT resource setup into devm_pci_alloc_host_bridge() (Rob Herring) - Set bridge map_irq and swizzle_irq to default functions; drivers that don't support legacy IRQs (iproc) need to undo this (Rob Herring) ARM Versatile PCIe controller driver: - Drop flag PCI_ENABLE_PROC_DOMAINS (Rob Herring) Cadence PCIe controller driver: - Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property (Kishon Vijay Abraham I) - Remove "mem" from reg binding (Kishon Vijay Abraham I) - Fix cdns_pcie_{host|ep}_setup() error path (Kishon Vijay Abraham I) - Convert all r/w accessors to perform only 32-bit accesses (Kishon Vijay Abraham I) - Add support to start link and verify link status (Kishon Vijay Abraham I) - Allow pci_host_bridge to have custom pci_ops (Kishon Vijay Abraham I) - Add new *ops* for CPU addr fixup (Kishon Vijay Abraham I) - Fix updating Vendor ID and Subsystem Vendor ID register (Kishon Vijay Abraham I) - Use bridge resources for outbound window setup (Rob Herring) - Remove private bus number and range storage (Rob Herring) Cadence PCIe endpoint driver: - Add MSI-X support (Alan Douglas) HiSilicon PCIe controller driver: - Remove non-ECAM HiSilicon hip05/hip06 driver (Rob Herring) Intel VMD host bridge driver: - Use Shadow MEMBAR registers for QEMU/KVM guests (Jon Derrick) Loongson PCIe controller driver: - Use DECLARE_PCI_FIXUP_EARLY for bridge_class_quirk() (Tiezhu Yang) Marvell Aardvark PCIe controller driver: - Indicate error in 'val' when config read fails (Pali Rohár) - Don't touch PCIe registers if no card connected (Pali Rohár) Marvell MVEBU PCIe controller driver: - Setup BAR0 in order to fix MSI (Shmuel Hazan) Microsoft Hyper-V host bridge driver: - Fix a timing issue which causes kdump to fail occasionally (Wei Hu) - Make some functions static (Wei Yongjun) NVIDIA Tegra PCIe controller driver: - Revert tegra124 raw_violation_fixup (Nicolas Chauvet) - Remove PLL power supplies (Thierry Reding) Qualcomm PCIe controller driver: - Change duplicate PCI reset to phy reset (Abhishek Sahu) - Add missing ipq806x clocks in PCIe driver (Ansuel Smith) - Add missing reset for ipq806x (Ansuel Smith) - Add ext reset (Ansuel Smith) - Use bulk clk API and assert on error (Ansuel Smith) - Add support for tx term offset for rev 2.1.0 (Ansuel Smith) - Define some PARF params needed for ipq8064 SoC (Ansuel Smith) - Add ipq8064 rev2 variant (Ansuel Smith) - Support PCI speed set for ipq806x (Sham Muthayyan) Renesas R-Car PCIe controller driver: - Use devm_pci_alloc_host_bridge() (Rob Herring) - Use struct pci_host_bridge.windows list directly (Rob Herring) - Convert rcar-gen2 to use modern host bridge probe functions (Rob Herring) TI J721E PCIe driver: - Add TI J721E PCIe host and endpoint driver (Kishon Vijay Abraham I) Xilinx Versal CPM PCIe controller driver: - Add Versal CPM Root Port driver and YAML schema (Bharat Kumar Gogada) MicroSemi Switchtec management driver: - Add missing __iomem and __user tags to fix sparse warnings (Logan Gunthorpe) Miscellaneous: - Replace http:// links with https:// (Alexander A. Klimov) - Replace lkml.org, spinics, gmane with lore.kernel.org (Bjorn Helgaas) - Remove unused pci_lost_interrupt() (Heiner Kallweit) - Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h (Huacai Chen) - Fix kerneldoc warnings (Krzysztof Kozlowski)" * tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits) PCI: Fix kerneldoc warnings PCI: xilinx-cpm: Add Versal CPM Root Port driver PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port PCI: Set bridge map_irq and swizzle_irq to default functions PCI: Move DT resource setup into devm_pci_alloc_host_bridge() PCI: rcar-gen2: Convert to use modern host bridge probe functions PCI: Remove dev_err() when handing an error from platform_get_irq() MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe misc: pci_endpoint_test: Add J721E in pci_device_id table PCI: j721e: Add TI J721E PCIe driver PCI: switchtec: Add missing __iomem tag to fix sparse warnings PCI: switchtec: Add missing __iomem and __user tags to fix sparse warnings PCI: rpadlpar: Make functions static PCI/P2PDMA: Allow P2PDMA on AMD Zen and newer CPUs PCI: Release IVRS table in AMD ACS quirk PCI: Announce device after early fixups PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken PCI: Remove unused pci_lost_interrupt() dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC ...
2020-08-05Merge branch 'pci/irq-error'Bjorn Helgaas
- Remove redundant logging for platform_get_irq() errors (Krzysztof Wilczyński) * pci/irq-error: PCI: Remove dev_err() when handing an error from platform_get_irq()
2020-08-05Merge branch 'pci/doc'Bjorn Helgaas
- Fix several kerneldoc warnings (Krzysztof Kozlowski) * pci/doc: PCI: Fix kerneldoc warnings
2020-08-05Merge branch 'pci/host-probe-refactor'Bjorn Helgaas
- Use pci_host_bridge.windows list directly instead of splicing in a temporary list for cadence, mvebu, host-common (Rob Herring) - Use pci_host_probe() instead of open-coding all the pieces for altera, brcmstb, iproc, mobiveil, rcar, rockchip, tegra, v3, versatile, xgene, xilinx, xilinx-nwl (Rob Herring) - Convert to devm_platform_ioremap_resource_byname() instead of open-coding platform_get_resource_byname() and devm_ioremap_resource() for altera, cadence, mediatek, rockchip, tegra, xgene (Dejin Zheng) - Convert to devm_platform_ioremap_resource() instead of open-coding platform_get_resource() and devm_ioremap_resource() for aardvark, brcmstb, exynos, ftpci100, versatile (Dejin Zheng) - Remove redundant error messages from devm_pci_remap_cfg_resource() callers (Dejin Zheng) - Drop useless PCI_ENABLE_PROC_DOMAINS from versatile driver (Rob Herring) - Default host bridge parent device to the platform device (Rob Herring) - Drop unnecessary zeroing of host bridge fields (Rob Herring) - Use pci_is_root_bus() instead of tracking root bus number separately in aardvark, designware (imx6, keystone, designware-host), mobiveil, xilinx-nwl, xilinx, rockchip, rcar (Rob Herring) - Set host bridge bus number in pci_scan_root_bus_bridge() instead of each driver for aardvark, designware-host, host-common, mediatek, rcar, tegra, v3-semi (Rob Herring) - Use bridge resources instead of parsing DT 'ranges' again for cadence (Rob Herring) - Remove private bus number and range from cadence (Rob Herring) - Use devm_pci_alloc_host_bridge() to simplify rcar (Rob Herring) - Use struct pci_host_bridge.windows list directly rather than a temporary (Rob Herring) - Reduce OF "missing non-prefetchable window" from error to warning message (Rob Herring) - Convert rcar-gen2 from old Arm-specific pci_common_init_dev() to new arch-independent interfaces (Rob Herring) - Move DT resource setup into devm_pci_alloc_host_bridge() (Rob Herring) - Set bridge map_irq and swizzle_irq to default functions; drivers that don't support legacy IRQs (iproc) need to undo this (Rob Herring) * pci/host-probe-refactor: PCI: Set bridge map_irq and swizzle_irq to default functions PCI: Move DT resource setup into devm_pci_alloc_host_bridge() PCI: rcar-gen2: Convert to use modern host bridge probe functions PCI: of: Reduce missing non-prefetchable memory region to a warning PCI: rcar: Use struct pci_host_bridge.windows list directly PCI: rcar: Use devm_pci_alloc_host_bridge() PCI: cadence: Remove private bus number and range storage PCI: cadence: Use bridge resources for outbound window setup PCI: Move setting pci_host_bridge.busnr out of host drivers PCI: rcar: Use pci_is_root_bus() to check if bus is root bus PCI: rockchip: Use pci_is_root_bus() to check if bus is root bus PCI: xilinx: Use pci_is_root_bus() to check if bus is root bus PCI: xilinx-nwl: Use pci_is_root_bus() to check if bus is root bus PCI: mobiveil: Use pci_is_root_bus() to check if bus is root bus PCI: designware: Use pci_is_root_bus() to check if bus is root bus PCI: aardvark: Use pci_is_root_bus() to check if bus is root bus PCI: Drop unnecessary zeroing of bridge fields PCI: Set default bridge parent device PCI: versatile: Drop flag PCI_ENABLE_PROC_DOMAINS PCI: controller: Remove duplicate error message PCI: controller: Convert to devm_platform_ioremap_resource() PCI: controller: Convert to devm_platform_ioremap_resource_byname() PCI: xilinx: Use pci_host_probe() to register host PCI: xilinx-nwl: Use pci_host_probe() to register host PCI: rockchip: Use pci_host_probe() to register host PCI: rcar: Use pci_host_probe() to register host PCI: iproc: Use pci_host_probe() to register host PCI: altera: Use pci_host_probe() to register host PCI: xgene: Use pci_host_probe() to register host PCI: versatile: Use pci_host_probe() to register host PCI: v3: Use pci_host_probe() to register host PCI: tegra: Use pci_host_probe() to register host PCI: mobiveil: Use pci_host_probe() to register host PCI: brcmstb: Use pci_host_probe() to register host PCI: host-common: Use struct pci_host_bridge.windows list directly PCI: mvebu: Use struct pci_host_bridge.windows list directly PCI: cadence: Use struct pci_host_bridge.windows list directly # Conflicts: # drivers/pci/controller/cadence/pcie-cadence-host.c
2020-08-05Merge branch 'pci/xilinx-cpm'Bjorn Helgaas
* pci/xilinx-cpm: PCI: xilinx-cpm: Add Versal CPM Root Port driver PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
2020-08-05Merge branch 'remotes/lorenzo/pci/vmd'Bjorn Helgaas
- Use Shadow MEMBAR registers for QEMU/KVM guests (Jon Derrick) * remotes/lorenzo/pci/vmd: PCI: vmd: Use Shadow MEMBAR registers for QEMU/KVM guests
2020-08-05Merge branch 'remotes/lorenzo/pci/tegra'Bjorn Helgaas
- Revert tegra RAW fixup that caused a regression (Nicolas Chauvet) - Remove PLL power supplies from tegra driver and DT binding (Thierry Reding) * remotes/lorenzo/pci/tegra: PCI: tegra: Remove PLL power supplies dt-bindings: pci: tegra: Remove PLL power supplies PCI: tegra: Revert tegra124 raw_violation_fixup
2020-08-05Merge branch 'remotes/lorenzo/pci/runtime-pm'Bjorn Helgaas
- Fix runtime power management imbalance for cadence, dra7xx, qcom, rcar (Dinghao Liu) * remotes/lorenzo/pci/runtime-pm: PCI: rcar: Fix runtime PM imbalance on error PCI: qcom: Fix runtime PM imbalance on error PCI: cadence: Fix runtime PM imbalance on error PCI: dwc: pci-dra7xx: Fix runtime PM imbalance on error
2020-08-05Merge branch 'remotes/lorenzo/pci/mvebu'Bjorn Helgaas
- Set up mvebu BAR 0 so MSI works even if bootloader doesn't do this (Shmuel Hazan) * remotes/lorenzo/pci/mvebu: PCI: mvebu: Setup BAR0 in order to fix MSI
2020-08-05Merge branch 'remotes/lorenzo/pci/loongson'Bjorn Helgaas
- Fix loongson class code quirk so it happens early enough (Tiezhu Yang) * remotes/lorenzo/pci/loongson: PCI: loongson: Use DECLARE_PCI_FIXUP_EARLY for bridge_class_quirk()
2020-08-05Merge branch 'remotes/lorenzo/pci/hv'Bjorn Helgaas
- Fix hv timing issue that causes kdump failures (Wei Hu) - Make some hv functions static (Wei Yongjun) * remotes/lorenzo/pci/hv: PCI: hv: Make some functions static PCI: hv: Fix a timing issue which causes kdump to fail occasionally
2020-08-05Merge branch 'remotes/lorenzo/pci/dwc'Bjorn Helgaas
- Add qcom ipq806x support (Ansuel Smith) - Support max-link-speed DT property for qcom (Sham Muthayyan) - Use PCI core #defines instead of adding qcom-specific ones (Ansuel Smith) - Convert to devm_platform_ioremap_resource_byname() instead of open-coding platform_get_resource_byname() and devm_ioremap_resource() for dra7xx, keystone, artpec6, designware-plat, histb, intel-gw, kirin, qcom, uniphier (Dejin Zheng) - Remove non-ECAM HiSilicon hip05/hip06 driver (Rob Herring) * remotes/lorenzo/pci/dwc: PCI: dwc: hisi: Remove non-ECAM HiSilicon hip05/hip06 driver PCI: dwc: Convert to devm_platform_ioremap_resource_byname() PCI: qcom: Replace define with standard value PCI: qcom: Support pci speed set for ipq806x dt-bindings: PCI: qcom: Add ipq8064 rev 2 variant PCI: qcom: Add ipq8064 rev2 variant PCI: qcom: Add support for tx term offset for rev 2.1.0 PCI: qcom: Define some PARF params needed for ipq8064 SoC PCI: qcom: Use bulk clk api and assert on error dt-bindings: PCI: qcom: Add ext reset PCI: qcom: Add missing reset for ipq806x PCI: qcom: Change duplicate PCI reset to phy reset dt-bindings: PCI: qcom: Add missing clks PCI: qcom: Add missing ipq806x clocks in PCIe driver
2020-08-05Merge branch 'remotes/lorenzo/pci/cadence'Bjorn Helgaas
- Convert cadence to use standard "dma-ranges" DT property instead of its own "cdns,no-bar-match-nbits" (Kishon Vijay Abraham I) - Fix pm_runtime_put_sync() issues in cadence error paths (Kishon Vijay Abraham I) - Add PTR_ALIGN_DOWN macro (Kishon Vijay Abraham I) - Convert cadence r/w accessors to only 32-bit accesses (Kishon Vijay Abraham I) - Add cadence support to start Link and check Link status (Kishon Vijay Abraham I) - Allow custom PCI ops for cadence-based drivers (Kishon Vijay Abraham I) - Remove "mem" from cadence reg binding since it's not memory and it overlaps the PCIe config and memory region (Kishon Vijay Abraham I) - Add cadence ->cpu_addr_fixup() for platforms that require absolute addresses in the ATU, not just offsets (Kishon Vijay Abraham I) - Update cadence Vendor IDs using local management registers, not architected config space (Kishon Vijay Abraham I) - Add cadence endpoint driver MSI-X support (Kishon Vijay Abraham I) - Add bindings and driver for TI J721E SoC, supporting both host and endpoint mode (Kishon Vijay Abraham I) * remotes/lorenzo/pci/cadence: MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe misc: pci_endpoint_test: Add J721E in pci_device_id table PCI: j721e: Add TI J721E PCIe driver dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC PCI: cadence: Add MSI-X support to Endpoint driver PCI: cadence: Fix updating Vendor ID and Subsystem Vendor ID register PCI: cadence: Add new *ops* for CPU addr fixup dt-bindings: PCI: cadence: Remove "mem" from reg binding PCI: cadence: Allow pci_host_bridge to have custom pci_ops PCI: cadence: Add support to start link and verify link status PCI: cadence: Convert all r/w accessors to perform only 32-bit accesses linux/kernel.h: Add PTR_ALIGN_DOWN macro PCI: cadence: Fix cdns_pcie_{host|ep}_setup() error path PCI: cadence: Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property
2020-08-05Merge branch 'remotes/lorenzo/pci/aardvark'Bjorn Helgaas
- Indicate error in 'val' when config read fails (Pali Rohár) - Don't touch PCIe registers if no card connected (Pali Rohár) * remotes/lorenzo/pci/aardvark: PCI: aardvark: Don't touch PCIe registers if no card connected PCI: aardvark: Indicate error in 'val' when config read fails
2020-08-05Merge branch 'pci/switchtec'Bjorn Helgaas
- Add __iomem and __user tags to switchtec driver (Logan Gunthorpe) * pci/switchtec: PCI: switchtec: Add missing __iomem tag to fix sparse warnings PCI: switchtec: Add missing __iomem and __user tags to fix sparse warnings
2020-08-05Merge branch 'pci/virtualization'Bjorn Helgaas
- Remove redundant variable init in xen (Colin Ian King) - Add pci_pri_supported() to check device or associated PF for PRI support (Ashok Raj) - Mark AMD Navi10 GPU rev 0x00 ATS as broken (Kai-Heng Feng) - Release IVRS table in AMD ACS quirk (Hanjun Guo) * pci/virtualization: PCI: Release IVRS table in AMD ACS quirk PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken PCI/ATS: Add pci_pri_supported() to check device or associated PF xen: Remove redundant initialization of irq
2020-08-05Merge branch 'pci/peer-to-peer'Bjorn Helgaas
- Allow P2PDMA on AMD Zen and newer CPUs (Logan Gunthorpe) * pci/peer-to-peer: PCI/P2PDMA: Allow P2PDMA on AMD Zen and newer CPUs
2020-08-05Merge branch 'pci/msi'Bjorn Helgaas
- Forward MSI-X error code in pci_alloc_irq_vectors_affinity() (Piotr Stankiewicz) * pci/msi: PCI/MSI: Forward MSI-X error code in pci_alloc_irq_vectors_affinity()
2020-08-05Merge branch 'pci/misc'Bjorn Helgaas
- Convert PCIe capability PCIBIOS errors to errno (Bolarinwa Olayemi Saheed) - Align PCIe capability and PCI accessor return values (Bolarinwa Olayemi Saheed) - Replace http:// links with https:// (Alexander A. Klimov) - Replace lkml.org, spinics, gmane with lore.kernel.org (Bjorn Helgaas) - Update panic message to mention kzalloc(), not kmalloc() (Liao Pingfang) - Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h (Huacai Chen) - Remove unused pci_lost_interrupt() (Heiner Kallweit) * pci/misc: PCI: Remove unused pci_lost_interrupt() PCI: Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h PCI: Fix error in panic message PCI: Replace lkml.org, spinics, gmane with lore.kernel.org PCI: Replace http:// links with https:// PCI: Align PCIe capability and PCI accessor return values PCI: Convert PCIe capability PCIBIOS errors to errno
2020-08-05Merge branch 'pci/hotplug'Bjorn Helgaas
- Fix pci_create_slot() reference count leak in failure path (Qiushi Wu) - Make rpadlpar functions static (Wei Yongjun) * pci/hotplug: PCI: rpadlpar: Make functions static PCI: Fix pci_create_slot() reference count leak
2020-08-05Merge branch 'pci/error'Bjorn Helgaas
- Use pci_channel_state_t instead of enum pci_channel_state (Luc Van Oostenryck) - Simplify __aer_print_error() (Bjorn Helgaas) - Log AER correctable errors as warning, not error (Matt Jolly) - Rename pci_aer_clear_device_status() to pcie_clear_device_status() (Bjorn Helgaas) - Clear PCIe Device Status errors only if OS owns AER (Jonathan Cameron) * pci/error: PCI/ERR: Clear PCIe Device Status errors only if OS owns AER PCI/ERR: Rename pci_aer_clear_device_status() to pcie_clear_device_status() PCI/AER: Log correctable errors as warning, not error PCI/AER: Simplify __aer_print_error() PCI: Use 'pci_channel_state_t' instead of 'enum pci_channel_state'
2020-08-05Merge branch 'pci/enumeration'Bjorn Helgaas
- Fix pci_cfg_wait queue locking problem (Xiang Zheng, Bjorn Helgaas) - Keep device in system even if driver attach fails (Rajat Jain) - Cache ACS capability offset in device (Rajat Jain) - Treat "external-facing" devices themselves as internal, not external (Rajat Jain) - Announce device after early fixups (Tiezhu Yang) * pci/enumeration: PCI: Announce device after early fixups PCI: Treat "external-facing" devices themselves as internal PCI: Cache ACS capability offset in device PCI: Reorder pci_enable_acs() and dependencies PCI: Add device even if driver attach failed PCI: Fix pci_cfg_wait queue locking problem
2020-08-05PCI: Fix kerneldoc warningsKrzysztof Kozlowski
Fix kerneldoc warnings, e.g., $ make W=1 drivers/pci/ drivers/pci/ats.c:196: warning: Function parameter or member 'pdev' not described in 'pci_enable_pri' drivers/pci/ats.c:196: warning: Function parameter or member 'reqs' not described in 'pci_enable_pri' ... Link: https://lore.kernel.org/r/20200729201224.26799-2-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-3-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-4-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-5-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-6-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-7-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-08-05PCI: xilinx-cpm: Add Versal CPM Root Port driverBharat Kumar Gogada
Add support for Versal CPM as Root Port. The Versal ACAP devices include CCIX-PCIe Module (CPM). The integrated block for CPM along with the integrated bridge can function as PCIe Root Port. Bridge error and legacy interrupts in Versal CPM are handled using Versal CPM specific interrupt line. [bhelgaas: fold in kerneldoc fix from https://lore.kernel.org/linux-acpi/20200729201224.26799-7-krzk@kernel.org/] Link: https://lore.kernel.org/r/1592312214-9347-3-git-send-email-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> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rob Herring <robh@kernel.org>
2020-08-04Merge tag 'uninit-macro-v5.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull uninitialized_var() macro removal from Kees Cook: "This is long overdue, and has hidden too many bugs over the years. The series has several "by hand" fixes, and then a trivial treewide replacement. - Clean up non-trivial uses of uninitialized_var() - Update documentation and checkpatch for uninitialized_var() removal - Treewide removal of uninitialized_var()" * tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: compiler: Remove uninitialized_var() macro treewide: Remove uninitialized_var() usage checkpatch: Remove awareness of uninitialized_var() macro mm/debug_vm_pgtable: Remove uninitialized_var() usage f2fs: Eliminate usage of uninitialized_var() macro media: sur40: Remove uninitialized_var() usage KVM: PPC: Book3S PR: Remove uninitialized_var() usage clk: spear: Remove uninitialized_var() usage clk: st: Remove uninitialized_var() usage spi: davinci: Remove uninitialized_var() usage ide: Remove uninitialized_var() usage rtlwifi: rtl8192cu: Remove uninitialized_var() usage b43: Remove uninitialized_var() usage drbd: Remove uninitialized_var() usage x86/mm/numa: Remove uninitialized_var() usage docs: deprecated.rst: Add uninitialized_var()
2020-08-04PCI: Set bridge map_irq and swizzle_irq to default functionsRob Herring
The majority of DT based host drivers use the default .map_irq() and .swizzle_irq() functions, so let's initialize the function pointers to the default and drop setting them in the host drivers. Drivers like iProc which don't support legacy interrupts need to set .map_irq() back to NULL. Link: https://lore.kernel.org/r/20200722022514.1283916-20-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com>
2020-08-04PCI: Move DT resource setup into devm_pci_alloc_host_bridge()Rob Herring
Now that pci_parse_request_of_pci_ranges() callers just setup pci_host_bridge.windows and dma_ranges directly and don't need the bus range returned, we can just initialize them when allocating the pci_host_bridge struct. With this, pci_parse_request_of_pci_ranges() becomes a static function. Link: https://lore.kernel.org/r/20200722022514.1283916-19-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com>
2020-08-04PCI: rcar-gen2: Convert to use modern host bridge probe functionsRob Herring
The rcar-gen2 host driver still uses the old Arm PCI setup function pci_common_init_dev(). Let's update it to use the modern devm_pci_alloc_host_bridge(), pci_parse_request_of_pci_ranges() and pci_host_probe() functions. Link: https://lore.kernel.org/r/20200722022514.1283916-18-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: linux-renesas-soc@vger.kernel.org
2020-08-03Merge tag 'acpi-5.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These eliminate significant AML processing overhead related to using operation regions in system memory, update the ACPICA code in the kernel to upstream revision 20200717 (including a fix to prevent operation region reference counts from overflowing in some cases), remove the last bits of the (long deprecated) ACPI procfs interface and do some assorted cleanups. Specifics: - Eliminate significant AML processing overhead related to using operation regions in system memory by reworking the management of memory mappings in the ACPI code to defer unmap operations (to do them outside of the ACPICA locks, among other things) and making the memory operation reagion handler avoid releasing memory mappings created by it too early (Rafael Wysocki). - Update the ACPICA code in the kernel to upstream revision 20200717: * Prevent operation region reference counts from overflowing in some cases (Erik Kaneda). * Replace one-element array with flexible-array (Gustavo A. R. Silva). - Fix ACPI PCI hotplug reference counting (Rafael Wysocki). - Drop last bits of the ACPI procfs interface (Thomas Renninger). - Drop some redundant checks from the code parsing ACPI tables related to NUMA (Hanjun Guo). - Avoid redundant object evaluation in the ACPI device properties handling code (Heikki Krogerus). - Avoid unecessary memory overhead related to storing the signatures of the ACPI tables recognized by the kernel (Ard Biesheuvel). - Add missing newline characters when printing module parameter values in some places (Xiongfeng Wang). - Update the link to the ACPI specifications in some places (Tiezhu Yang). - Use the fallthrough pseudo-keyword in the ACPI code (Gustavo A. R. Silva). - Drop redundant variable initialization from the APEI code (Colin Ian King). - Drop uninitialized_var() from the ACPI PAD driver (Jason Yan). - Replace HTTP links with HTTPS ones in the ACPI code (Alexander A. Klimov)" * tag 'acpi-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits) ACPI: APEI: remove redundant assignment to variable rc ACPI: NUMA: Remove the useless 'node >= MAX_NUMNODES' check ACPI: NUMA: Remove the useless sub table pointer check ACPI: tables: Remove the duplicated checks for acpi_parse_entries_array() ACPICA: Update version to 20200717 ACPICA: Do not increment operation_region reference counts for field units ACPICA: Replace one-element array with flexible-array ACPI: Replace HTTP links with HTTPS ones ACPI: Use valid link to the ACPI specification ACPI: OSL: Clean up the removal of unused memory mappings ACPI: OSL: Use deferred unmapping in acpi_os_unmap_iomem() ACPI: OSL: Use deferred unmapping in acpi_os_unmap_generic_address() ACPICA: Preserve memory opregion mappings ACPI: OSL: Implement deferred unmapping of ACPI memory ACPI: Use fallthrough pseudo-keyword PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context() ACPI: tables: avoid relocations for table signature array ACPI: PAD: Eliminate usage of uninitialized_var() macro ACPI: sysfs: add newlines when printing module parameters ACPI: EC: add newline when printing 'ec_event_clearing' module parameter ...
2020-08-03Merge tag 'sched-core-2020-08-03' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: - Improve uclamp performance by using a static key for the fast path - Add the "sched_util_clamp_min_rt_default" sysctl, to optimize for better power efficiency of RT tasks on battery powered devices. (The default is to maximize performance & reduce RT latencies.) - Improve utime and stime tracking accuracy, which had a fixed boundary of error, which created larger and larger relative errors as the values become larger. This is now replaced with more precise arithmetics, using the new mul_u64_u64_div_u64() helper in math64.h. - Improve the deadline scheduler, such as making it capacity aware - Improve frequency-invariant scheduling - Misc cleanups in energy/power aware scheduling - Add sched_update_nr_running tracepoint to track changes to nr_running - Documentation additions and updates - Misc cleanups and smaller fixes * tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) sched/doc: Factorize bits between sched-energy.rst & sched-capacity.rst sched/doc: Document capacity aware scheduling sched: Document arch_scale_*_capacity() arm, arm64: Fix selection of CONFIG_SCHED_THERMAL_PRESSURE Documentation/sysctl: Document uclamp sysctl knobs sched/uclamp: Add a new sysctl to control RT default boost value sched/uclamp: Fix a deadlock when enabling uclamp static key sched: Remove duplicated tick_nohz_full_enabled() check sched: Fix a typo in a comment sched/uclamp: Remove unnecessary mutex_init() arm, arm64: Select CONFIG_SCHED_THERMAL_PRESSURE sched: Cleanup SCHED_THERMAL_PRESSURE kconfig entry arch_topology, sched/core: Cleanup thermal pressure definition trace/events/sched.h: fix duplicated word linux/sched/mm.h: drop duplicated words in comments smp: Fix a potential usage of stale nr_cpus sched/fair: update_pick_idlest() Select group with lowest group_util when idle_cpus are equal sched: nohz: stop passing around unused "ticks" parameter. sched: Better document ttwu() sched: Add a tracepoint to track rq->nr_running ...
2020-08-03Merge tag 'irq-urgent-2020-08-02' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: "Fix a recent IRQ affinities regression, add in a missing debugfs printout that helps the debugging of IRQ affinity logic bugs, and fix a memory leak" * tag 'irq-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/debugfs: Add missing irqchip flags genirq/affinity: Make affinity setting if activated opt-in irqdomain/treewide: Free firmware node after domain removal
2020-08-03Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 and cross-arch updates from Catalin Marinas: "Here's a slightly wider-spread set of updates for 5.9. Going outside the usual arch/arm64/ area is the removal of read_barrier_depends() series from Will and the MSI/IOMMU ID translation series from Lorenzo. The notable arm64 updates include ARMv8.4 TLBI range operations and translation level hint, time namespace support, and perf. Summary: - Removal of the tremendously unpopular read_barrier_depends() barrier, which is a NOP on all architectures apart from Alpha, in favour of allowing architectures to override READ_ONCE() and do whatever dance they need to do to ensure address dependencies provide LOAD -> LOAD/STORE ordering. This work also offers a potential solution if compilers are shown to convert LOAD -> LOAD address dependencies into control dependencies (e.g. under LTO), as weakly ordered architectures will effectively be able to upgrade READ_ONCE() to smp_load_acquire(). The latter case is not used yet, but will be discussed further at LPC. - Make the MSI/IOMMU input/output ID translation PCI agnostic, augment the MSI/IOMMU ACPI/OF ID mapping APIs to accept an input ID bus-specific parameter and apply the resulting changes to the device ID space provided by the Freescale FSL bus. - arm64 support for TLBI range operations and translation table level hints (part of the ARMv8.4 architecture version). - Time namespace support for arm64. - Export the virtual and physical address sizes in vmcoreinfo for makedumpfile and crash utilities. - CPU feature handling cleanups and checks for programmer errors (overlapping bit-fields). - ACPI updates for arm64: disallow AML accesses to EFI code regions and kernel memory. - perf updates for arm64. - Miscellaneous fixes and cleanups, most notably PLT counting optimisation for module loading, recordmcount fix to ignore relocations other than R_AARCH64_CALL26, CMA areas reserved for gigantic pages on 16K and 64K configurations. - Trivial typos, duplicate words" Link: http://lkml.kernel.org/r/20200710165203.31284-1-will@kernel.org Link: http://lkml.kernel.org/r/20200619082013.13661-1-lorenzo.pieralisi@arm.com * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (82 commits) arm64: use IRQ_STACK_SIZE instead of THREAD_SIZE for irq stack arm64/mm: save memory access in check_and_switch_context() fast switch path arm64: sigcontext.h: delete duplicated word arm64: ptrace.h: delete duplicated word arm64: pgtable-hwdef.h: delete duplicated words bus: fsl-mc: Add ACPI support for fsl-mc bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver of/irq: Make of_msi_map_rid() PCI bus agnostic of/irq: make of_msi_map_get_device_domain() bus agnostic dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus of/device: Add input id to of_dma_configure() of/iommu: Make of_map_rid() PCI agnostic ACPI/IORT: Add an input ID to acpi_dma_configure() ACPI/IORT: Remove useless PCI bus walk ACPI/IORT: Make iort_msi_map_rid() PCI agnostic ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC arm64: enable time namespace support arm64/vdso: Restrict splitting VVAR VMA arm64/vdso: Handle faults on timens page ...
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