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2020-10-14Merge tag 'pm-5.10-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These rework the collection of cpufreq statistics to allow it to take place if fast frequency switching is enabled in the governor, rework the frequency invariance handling in the cpufreq core and drivers, add new hardware support to a couple of cpufreq drivers, fix a number of assorted issues and clean up the code all over. Specifics: - Rework cpufreq statistics collection to allow it to take place when fast frequency switching is enabled in the governor (Viresh Kumar). - Make the cpufreq core set the frequency scale on behalf of the driver and update several cpufreq drivers accordingly (Ionela Voinescu, Valentin Schneider). - Add new hardware support to the STI and qcom cpufreq drivers and improve them (Alain Volmat, Manivannan Sadhasivam). - Fix multiple assorted issues in cpufreq drivers (Jon Hunter, Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan Gerhold, Viresh Kumar). - Fix several assorted issues in the operating performance points (OPP) framework (Stephan Gerhold, Viresh Kumar). - Allow devfreq drivers to fetch devfreq instances by DT enumeration instead of using explicit phandles and modify the devfreq core code to support driver-specific devfreq DT bindings (Leonard Crestez, Chanwoo Choi). - Improve initial hardware resetting in the tegra30 devfreq driver and clean up the tegra cpuidle driver (Dmitry Osipenko). - Update the cpuidle core to collect state entry rejection statistics and expose them via sysfs (Lina Iyer). - Improve the ACPI _CST code handling diagnostics (Chen Yu). - Update the PSCI cpuidle driver to allow the PM domain initialization to occur in the OSI mode as well as in the PC mode (Ulf Hansson). - Rework the generic power domains (genpd) core code to allow domain power off transition to be aborted in the absence of the "power off" domain callback (Ulf Hansson). - Fix two suspend-to-idle issues in the ACPI EC driver (Rafael Wysocki). - Fix the handling of timer_expires in the PM-runtime framework on 32-bit systems and the handling of device links in it (Grygorii Strashko, Xiang Chen). - Add IO requests batching support to the hibernate image saving and reading code and drop a bogus get_gendisk() from there (Xiaoyi Chen, Christoph Hellwig). - Allow PCIe ports to be put into the D3cold power state if they are power-manageable via ACPI (Lukas Wunner). - Add missing header file include to a power capping driver (Pujin Shi). - Clean up the qcom-cpr AVS driver a bit (Liu Shixin). - Kevin Hilman steps down as designated reviwer of adaptive voltage scaling (AVS) drivers (Kevin Hilman)" * tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits) cpufreq: stats: Fix string format specifier mismatch arm: disable frequency invariance for CONFIG_BL_SWITCHER cpufreq,arm,arm64: restructure definitions of arch_set_freq_scale() cpufreq: stats: Add memory barrier to store_reset() cpufreq: schedutil: Simplify sugov_fast_switch() ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe() ACPI: EC: PM: Flush EC work unconditionally after wakeup PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPI PM: hibernate: remove the bogus call to get_gendisk() in software_resume() cpufreq: Move traces and update to policy->cur to cpufreq core cpufreq: stats: Enable stats for fast-switch as well cpufreq: stats: Mark few conditionals with unlikely() cpufreq: stats: Remove locking cpufreq: stats: Defer stats update to cpufreq_stats_record_transition() PM: domains: Allow to abort power off when no ->power_off() callback PM: domains: Rename power state enums for genpd PM / devfreq: tegra30: Improve initial hardware resetting PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function PM / devfreq: Change prototype of devfreq_get_devfreq_by_phandle function PM / devfreq: Add devfreq_get_devfreq_by_node function ...
2020-10-14Merge tag 'hyperv-next-signed' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull Hyper-V updates from Wei Liu: - a series from Boqun Feng to support page size larger than 4K - a few miscellaneous clean-ups * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv: clocksource: Add notrace attribute to read_hv_sched_clock_*() functions x86/hyperv: Remove aliases with X64 in their name PCI: hv: Document missing hv_pci_protocol_negotiation() parameter scsi: storvsc: Support PAGE_SIZE larger than 4K Driver: hv: util: Use VMBUS_RING_SIZE() for ringbuffer sizes HID: hyperv: Use VMBUS_RING_SIZE() for ringbuffer sizes Input: hyperv-keyboard: Use VMBUS_RING_SIZE() for ringbuffer sizes hv_netvsc: Use HV_HYP_PAGE_SIZE for Hyper-V communication hv: hyperv.h: Introduce some hvpfn helper functions Drivers: hv: vmbus: Move virt_to_hvpfn() to hyperv header Drivers: hv: Use HV_HYP_PAGE in hv_synic_enable_regs() Drivers: hv: vmbus: Introduce types of GPADL Drivers: hv: vmbus: Move __vmbus_open() Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl drivers: hv: remove cast from hyperv_die_event
2020-10-13mm/memremap_pages: support multiple ranges per invocationDan Williams
In support of device-dax growing the ability to front physically dis-contiguous ranges of memory, update devm_memremap_pages() to track multiple ranges with a single reference counter and devm instance. Convert all [devm_]memremap_pages() users to specify the number of ranges they are mapping in their 'struct dev_pagemap' instance. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: "Jérôme Glisse" <jglisse@redhat.co Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/159643103789.4062302.18426128170217903785.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106116293.30709.13350662794915396198.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13mm/memremap_pages: convert to 'struct range'Dan Williams
The 'struct resource' in 'struct dev_pagemap' is only used for holding resource span information. The other fields, 'name', 'flags', 'desc', 'parent', 'sibling', and 'child' are all unused wasted space. This is in preparation for introducing a multi-range extension of devm_memremap_pages(). The bulk of this change is unwinding all the places internal to libnvdimm that used 'struct resource' unnecessarily, and replacing instances of 'struct dev_pagemap'.res with 'struct dev_pagemap'.range. P2PDMA had a minor usage of the resource flags field, but only to report failures with "%pR". That is replaced with an open coded print of the range. [dan.carpenter@oracle.com: mm/hmm/test: use after free in dmirror_allocate_chunk()] Link: https://lkml.kernel.org/r/20200926121402.GA7467@kadam Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen] Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/159643103173.4062302.768998885691711532.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106115761.30709.13539840236873663620.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-12Merge tag 'x86-irq-2020-10-12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 irq updates from Thomas Gleixner: "Surgery of the MSI interrupt handling to prepare the support of upcoming devices which require non-PCI based MSI handling: - Cleanup historical leftovers all over the place - Rework the code to utilize more core functionality - Wrap XEN PCI/MSI interrupts into an irqdomain to make irqdomain assignment to PCI devices possible. - Assign irqdomains to PCI devices at initialization time which allows to utilize the full functionality of hierarchical irqdomains. - Remove arch_.*_msi_irq() functions from X86 and utilize the irqdomain which is assigned to the device for interrupt management. - Make the arch_.*_msi_irq() support conditional on a config switch and let the last few users select it" * tag 'x86-irq-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) PCI: MSI: Fix Kconfig dependencies for PCI_MSI_ARCH_FALLBACKS x86/apic/msi: Unbreak DMAR and HPET MSI iommu/amd: Remove domain search for PCI/MSI iommu/vt-d: Remove domain search for PCI/MSI[X] x86/irq: Make most MSI ops XEN private x86/irq: Cleanup the arch_*_msi_irqs() leftovers PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable x86/pci: Set default irq domain in pcibios_add_device() iommm/amd: Store irq domain in struct device iommm/vt-d: Store irq domain in struct device x86/xen: Wrap XEN MSI management into irqdomain irqdomain/msi: Allow to override msi_domain_alloc/free_irqs() x86/xen: Consolidate XEN-MSI init x86/xen: Rework MSI teardown x86/xen: Make xen_msi_init() static and rename it to xen_hvm_msi_init() PCI/MSI: Provide pci_dev_has_special_msi_domain() helper PCI_vmd_Mark_VMD_irqdomain_with_DOMAIN_BUS_VMD_MSI irqdomain/msi: Provide DOMAIN_BUS_VMD_MSI x86/irq: Initialize PCI/MSI domain at PCI init time x86/pci: Reducde #ifdeffery in PCI init code ...
2020-10-06PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPILukas Wunner
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>
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()
2020-09-28PCI: hv: Document missing hv_pci_protocol_negotiation() parameterKrzysztof Wilczyński
Add missing documentation for the parameter "version" and "num_version" of the hv_pci_protocol_negotiation() function and resolve build time kernel-doc warnings: drivers/pci/controller/pci-hyperv.c:2535: warning: Function parameter or member 'version' not described in 'hv_pci_protocol_negotiation' drivers/pci/controller/pci-hyperv.c:2535: warning: Function parameter or member 'num_version' not described in 'hv_pci_protocol_negotiation' No change to functionality intended. Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Link: https://lore.kernel.org/r/20200925234753.1767227-1-kw@linux.com Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>
2020-09-16PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectableThomas Gleixner
The arch_.*_msi_irq[s] fallbacks are compiled in whether an architecture requires them or not. Architectures which are fully utilizing hierarchical irq domains should never call into that code. It's not only architectures which depend on that by implementing one or more of the weak functions, there is also a bunch of drivers which relies on the weak functions which invoke msi_controller::setup_irq[s] and msi_controller::teardown_irq. Make the architectures and drivers which rely on them select them in Kconfig and if not selected replace them by stub functions which emit a warning and fail the PCI/MSI interrupt allocation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20200826112333.992429909@linutronix.de
2020-09-16PCI/MSI: Provide pci_dev_has_special_msi_domain() helperThomas Gleixner
Provide a helper function to check whether a PCI device is handled by a non-standard PCI/MSI domain. This will be used to exclude such devices which hang of a special bus, e.g. VMD, to be excluded from the irq domain override in irq remapping. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20200826112333.139387358@linutronix.de
2020-09-16PCI_vmd_Mark_VMD_irqdomain_with_DOMAIN_BUS_VMD_MSIThomas Gleixner
Devices on the VMD bus use their own MSI irq domain, but it is not distinguishable from regular PCI/MSI irq domains. This is required to exclude VMD devices from getting the irq domain pointer set by interrupt remapping. Override the default bus token. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Joerg Roedel <jroedel@suse.de> Link: https://lore.kernel.org/r/20200826112333.047315047@linutronix.de
2020-09-16x86/msi: Use generic MSI domain opsThomas Gleixner
pci_msi_get_hwirq() and pci_msi_set_desc are not longer special. Enable the generic MSI domain ops in the core and PCI MSI code unconditionally and get rid of the x86 specific implementations in the X86 MSI code and in the hyperv PCI driver. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200826112332.564274859@linutronix.de
2020-09-16x86/msi: Consolidate MSI allocationThomas Gleixner
Convert the interrupt remap drivers to retrieve the pci device from the msi descriptor and use info::hwirq. This is the first step to prepare x86 for using the generic MSI domain ops. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Wei Liu <wei.liu@kernel.org> Acked-by: Joerg Roedel <jroedel@suse.de> Link: https://lore.kernel.org/r/20200826112332.466405395@linutronix.de
2020-09-16PCI/MSI: Rework pci_msi_domain_calc_hwirq()Thomas Gleixner
Retrieve the PCI device from the msi descriptor instead of doing so at the call sites. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200826112332.352583299@linutronix.de
2020-09-16PCI: vmd: Dont abuse vector irqomain as parentThomas Gleixner
VMD has it's own PCI/MSI interrupt domain which is not in any way depending on the x86 vector domain. PCI devices behind VMD share the VMD MSIX vector entries via a VMD specific message translation to the actual VMD MSIX vector. The VMD device interrupt handler for the VMD MSIX vectors invokes all interrupt handlers of the devices which share a vector. Making the x86 vector domain the actual parent of the VMD irq domain is pointless and actually counterproductive. When a device interrupt is requested then it will activate the interrupt which traverses down the hierarchy and consumes an interrupt vector in the vector domain which is never used. The domain is self contained and has no parent dependencies, so just hand in NULL for the parent and be done with it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20200826112330.928952181@linutronix.de
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 ...