Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ https://git.shady.money/linux/atom?h=v4.20 2018-10-25T13:50:48Z 2018-10-25T13:50:48Z Linus Torvalds torvalds@linux-foundation.org 2018-10-25T13:50:48Z urn:sha1:bd6bf7c10484f026505814b690104cdef27ed460 Pull PCI updates from Bjorn Helgaas: - Fix ASPM link_state teardown on removal (Lukas Wunner) - Fix misleading _OSC ASPM message (Sinan Kaya) - Make _OSC optional for PCI (Sinan Kaya) - Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set (Patrick Talbert) - Remove x86 and arm64 node-local allocation for host bridge structures (Punit Agrawal) - Pay attention to device-specific _PXM node values (Jonathan Cameron) - Support new Immediate Readiness bit (Felipe Balbi) - Differentiate between pciehp surprise and safe removal (Lukas Wunner) - Remove unnecessary pciehp includes (Lukas Wunner) - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner) - Tolerate PCIe Slot Presence Detect being hardwired to zero to workaround broken hardware, e.g., the Wilocity switch/wireless device (Lukas Wunner) - Unify pciehp controller & slot structs (Lukas Wunner) - Constify hotplug_slot_ops (Lukas Wunner) - Drop hotplug_slot_info (Lukas Wunner) - Embed hotplug_slot struct into users instead of allocating it separately (Lukas Wunner) - Initialize PCIe port service drivers directly instead of relying on initcall ordering (Keith Busch) - Restore PCI config state after a slot reset (Keith Busch) - Save/restore DPC config state along with other PCI config state (Keith Busch) - Reference count devices during AER handling to avoid race issue with concurrent hot removal (Keith Busch) - If an Upstream Port reports ERR_FATAL, don't try to read the Port's config space because it is probably unreachable (Keith Busch) - During error handling, use slot-specific reset instead of secondary bus reset to avoid link up/down issues on hotplug ports (Keith Busch) - Restore previous AER/DPC handling that does not remove and re-enumerate devices on ERR_FATAL (Keith Busch) - Notify all drivers that may be affected by error recovery resets (Keith Busch) - Always generate error recovery uevents, even if a driver doesn't have error callbacks (Keith Busch) - Make PCIe link active reporting detection generic (Keith Busch) - Support D3cold in PCIe hierarchies during system sleep and runtime, including hotplug and Thunderbolt ports (Mika Westerberg) - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots are empty or occupied (Jon Derrick) - Remove duplicated include from pci/pcie/err.c and unused variable from cpqphp (YueHaibing) - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza Pawandeep) - Uninline PCI bus accessors for better ftracing (Keith Busch) - Remove unused AER Root Port .error_resume method (Keith Busch) - Use kfifo in AER instead of a local version (Keith Busch) - Use threaded IRQ in AER bottom half (Keith Busch) - Use managed resources in AER core (Keith Busch) - Reuse pcie_port_find_device() for AER injection (Keith Busch) - Abstract AER interrupt handling to disconnect error injection (Keith Busch) - Refactor AER injection callbacks to simplify future improvments (Keith Busch) - Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski) - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko) - Add switch fall-through annotations (Gustavo A. R. Silva) - Remove unused Switchtec quirk variable (Joshua Abraham) - Fix pci.c kernel-doc warning (Randy Dunlap) - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig) - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng) - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid useless dmesg errors (Logan Gunthorpe) - Update Switchtec NTB documentation (Wesley Yung) - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz) - Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang) - Add PCI support for peer-to-peer DMA (Logan Gunthorpe) - Add sysfs group for PCI peer-to-peer memory statistics (Logan Gunthorpe) - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan Gunthorpe) - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan Gunthorpe) - Add PCI peer-to-peer DMA driver writer's documentation (Logan Gunthorpe) - Add block layer flag to indicate driver support for PCI peer-to-peer DMA (Logan Gunthorpe) - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P memory (Logan Gunthorpe) - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan Gunthorpe) - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan Gunthorpe) - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise, Christoph Hellwig, Logan Gunthorpe) - Cache VF config space size to optimize enumeration of many VFs (KarimAllah Ahmed) - Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas) - Fix VMD AERSID quirk Device ID matching (Jon Derrick) - Fix Cadence PHY handling during probe (Alan Douglas) - Signal Cadence Endpoint interrupts via AXI region 0 instead of last region (Alan Douglas) - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan Douglas) - Remove redundant controller tests for "device_type == pci" (Rob Herring) - Document R-Car E3 (R8A77990) bindings (Tho Vu) - Add device tree support for R-Car r8a7744 (Biju Das) - Drop unused mvebu PCIe capability code (Thomas Petazzoni) - Add shared PCI bridge emulation code (Thomas Petazzoni) - Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni) - Add aardvark Root Port emulation (Thomas Petazzoni) - Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach) - Add initial power management for i.MX7 (Leonard Crestez) - Add PME_Turn_Off support for i.MX7 (Leonard Crestez) - Fix qcom runtime power management error handling (Bjorn Andersson) - Update TI dra7xx unaligned access errata workaround for host mode as well as endpoint mode (Vignesh R) - Fix kirin section mismatch warning (Nathan Chancellor) - Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare) - Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I) - Update Keystone to use MRRS quirk for host bridge instead of open coding (Kishon Vijay Abraham I) - Refactor Keystone link establishment (Kishon Vijay Abraham I) - Simplify and speed up Keystone link training (Kishon Vijay Abraham I) - Remove unused Keystone host_init argument (Kishon Vijay Abraham I) - Merge Keystone driver files into one (Kishon Vijay Abraham I) - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay Abraham I) - Rename Keystone functions for uniformity (Kishon Vijay Abraham I) - Add Keystone device control module DT binding (Kishon Vijay Abraham I) - Use SYSCON API to get Keystone control module device IDs (Kishon Vijay Abraham I) - Clean up Keystone PHY handling (Kishon Vijay Abraham I) - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I) - Clean up Keystone config space access checks (Kishon Vijay Abraham I) - Get Keystone outbound window count from DT (Kishon Vijay Abraham I) - Clean up Keystone outbound window configuration (Kishon Vijay Abraham I) - Clean up Keystone DBI setup (Kishon Vijay Abraham I) - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I) - Fix Keystone IRQ status checking (Kishon Vijay Abraham I) - Add debug messages for all Keystone errors (Kishon Vijay Abraham I) - Clean up Keystone includes and macros (Kishon Vijay Abraham I) - Fix Mediatek unchecked return value from devm_pci_remap_iospace() (Gustavo A. R. Silva) - Fix Mediatek endpoint/port matching logic (Honghui Zhang) - Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui Zhang) - Remove redundant Mediatek PM domain check (Honghui Zhang) - Convert Mediatek to pci_host_probe() (Honghui Zhang) - Fix Mediatek MSI enablement (Honghui Zhang) - Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang) - Add Mediatek loadable module support (Honghui Zhang) - Detach VMD resources after stopping root bus to prevent orphan resources (Jon Derrick) - Convert pcitest build process to that used by other tools (iio, perf, etc) (Gustavo Pimentel) * tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits) PCI/AER: Refactor error injection fallbacks PCI/AER: Abstract AER interrupt handling PCI/AER: Reuse existing pcie_port_find_device() interface PCI/AER: Use managed resource allocations PCI: pcie: Remove redundant 'default n' from Kconfig PCI: aardvark: Implement emulated root PCI bridge config space PCI: mvebu: Convert to PCI emulated bridge config space PCI: mvebu: Drop unused PCI express capability code PCI: Introduce PCI bridge emulated config space common logic PCI: vmd: Detach resources after stopping root bus nvmet: Optionally use PCI P2P memory nvmet: Introduce helper functions to allocate and free request SGLs nvme-pci: Add support for P2P memory in requests nvme-pci: Use PCI p2pmem subsystem to manage the CMB IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() block: Add PCI P2P flag for request queue PCI/P2PDMA: Add P2P DMA driver writer's documentation docs-rst: Add a new directory for PCI documentation PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset ... 2018-10-23T09:33:16Z Linus Torvalds torvalds@linux-foundation.org 2018-10-23T09:33:16Z urn:sha1:58a0228707870c8330917f919804986855443a19 Pull ACPI updates from Rafael Wysocki: "These fix ACPICA issues related to the handling of module-level AML, fix an ordering issue during ACPI initialization, update ACPICA to upstream revision 20181003 (including fixes mostly), fix issues with system-wide suspend/resume related to the ACPI driver for Intel SoCs (LPSS), fix device enumeration issues on boards with Dollar Cove or Whiskey Cove Intel PMICs, prevent ACPICA from calling ktime_get() in unsuitable conditions, update a few drivers and clean up some code in several places. Specifics: - Fix ACPICA issues related to the handling of module-level AML and make the ACPI initialization code parse ECDT before loading the definition block tables (Erik Schmauss). - Update ACPICA to upstream revision 20181003 including fixes related to the ill-defined "generic serial bus" and the handling of the _REG object (Bob Moore). - Fix some issues with system-wide suspend/resume on Intel BYT/CHT related to the handling of I2C controllers in the ACPI LPSS driver for Intel SoCs (Hans de Goede). - Modify the ACPI namespace scanning code to enumerate INT33FE HID devices as platform devices with I2C resources to avoid device enumeration problems on boards with Dollar Cove or Whiskey Cove Intel PMICs (Hans de Goede). - Prevent ACPICA from using ktime_get() during early resume from system-wide suspend before resuming the timekeeping which generally is unsafe and triggers a warning from the timekeeping code (Bart Van Assche). - Add low-level real time clock support to the ACPI Time and Aalarm Device (TAD) driver (Rafael Wysocki). - Fix the ACPI SBS driver to avoid GPE storms on MacBook Pro and Oopses when removing modules (Ronald Tschalär). - Fix the ACPI PPTT parsing code to handle architecturally unknown cache types properly (Jeffrey Hugo). - Fix initialization issue in the ACPI processor driver (Dou Liyang). - Clean up the code in several places (Andy Shevchenko, Bartlomiej Zolnierkiewicz, David Arcari, zhong jiang)" * tag 'acpi-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (33 commits) ACPI / scan: Create platform device for INT33FE ACPI nodes ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer() ACPI: probe ECDT before loading AML tables regardless of module-level code flag ACPICA: Remove acpi_gbl_group_module_level_code and only use acpi_gbl_execute_tables_as_methods instead ACPICA: AML Parser: fix parse loop to correctly skip erroneous extended opcodes ACPICA: AML interpreter: add region addresses in global list during initialization ACPI: TAD: Add low-level support for real time capability ACPI: remove redundant 'default n' from Kconfig ACPI / SBS: Fix rare oops when removing modules ACPI / SBS: Fix GPE storm on recent MacBookPro's ACPI/PPTT: Handle architecturally unknown cache types drivers: base: cacheinfo: Do not populate sysfs for unknown cache types ACPICA: Update version to 20181003 ACPICA: Never run _REG on system_memory and system_IO ACPICA: Split large interpreter file ACPICA: Update for field unit access ACPICA: Rename some of the Field Attribute defines ACPICA: Update for generic_serial_bus and attrib_raw_process_bytes protocol ACPI / processor: Fix the return value of acpi_processor_ids_walk() ACPI / LPSS: Resume BYT/CHT I2C controllers from resume_noirq ... 2018-10-23T09:28:21Z Linus Torvalds torvalds@linux-foundation.org 2018-10-23T09:28:21Z urn:sha1:12dd08fa954fb7c327382ead3bb9ac861f9b9b69 Pull power management updates from Rafael Wysocki: "These make hibernation on 32-bit x86 systems work in all of the cases in which it works on 64-bit x86 ones, update the menu cpuidle governor and the "polling" state to make them more efficient, add more hardware support to cpufreq drivers and fix issues with some of them, fix a bug in the conservative cpufreq governor, fix the operating performance points (OPP) framework and make it more stable, update the devfreq subsystem to take changes in the APIs used by into account and clean up some things all over. Specifics: - Backport hibernation bug fixes from x86-64 to x86-32 and consolidate hibernation handling on x86 to allow 32-bit systems to work in all of the cases in which 64-bit ones work (Zhimin Gu, Chen Yu). - Fix hibernation documentation (Vladimir D. Seleznev). - Update the menu cpuidle governor to fix a couple of issues with it, make it more efficient in some cases and clean it up (Rafael Wysocki). - Rework the cpuidle polling state implementation to make it more efficient (Rafael Wysocki). - Clean up the cpuidle core somewhat (Fieah Lim). - Fix the cpufreq conservative governor to take policy limits into account properly in some cases (Rafael Wysocki). - Add support for retrieving guaranteed performance information to the ACPI CPPC library and make the intel_pstate driver use it to expose the CPU base frequency via sysfs on systems with the hardware-managed P-states (HWP) feature enabled (Srinivas Pandruvada). - Fix clang warning in the CPPC cpufreq driver (Nathan Chancellor). - Get rid of device_node.name printing from cpufreq (Rob Herring). - Remove unnecessary unlikely() from the cpufreq core (Igor Stoppa). - Add support for the r8a7744 SoC to the cpufreq-dt driver (Biju Das). - Update the dt-platdev cpufreq driver to allow RK3399 to have separate tunables per cluster (Dmitry Torokhov). - Fix the dma_alloc_coherent() usage in the tegra186 cpufreq driver (Christoph Hellwig). - Make the imx6q cpufreq driver read OCOTP through nvmem for imx6ul/imx6ull (Anson Huang). - Fix several bugs in the operating performance points (OPP) framework and make it more stable (Viresh Kumar, Dave Gerlach). - Update the devfreq subsystem to take changes in the APIs used by into account, fix some issues with it and make it stop print device_node.name directly (Bjorn Andersson, Enric Balletbo i Serra, Matthias Kaehlcke, Rob Herring, Vincent Donnefort, zhong jiang). - Prepare the generic power domains (genpd) framework for dealing with domains containing CPUs (Ulf Hansson). - Prevent sysfs attributes representing low-power S0 residency counters from being exposed if low-power S0 support is not indicated in ACPI FADT (Rajneesh Bhardwaj). - Get rid of custom CPU features macros for Intel CPUs from the intel_idle and RAPL drivers (Andy Shevchenko). - Update the tasks freezer to list tasks that refused to freeze and caused a system transition to a sleep state to be aborted (Todd Brandt). - Update the pm-graph set of tools to v5.2 (Todd Brandt). - Fix some issues in the cpupower utility (Anders Roxell, Prarit Bhargava)" * tag 'pm-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (73 commits) PM / Domains: Document flags for genpd PM / Domains: Deal with multiple states but no governor in genpd PM / Domains: Don't treat zero found compatible idle states as an error cpuidle: menu: Avoid computations when result will be discarded cpuidle: menu: Drop redundant comparison cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc_coherent() cpufreq: conservative: Take limits changes into account properly Documentation: intel_pstate: Add base_frequency information cpufreq: intel_pstate: Add base_frequency attribute ACPI / CPPC: Add support for guaranteed performance cpuidle: menu: Simplify checks related to the polling state PM / tools: sleepgraph and bootgraph: upgrade to v5.2 PM / tools: sleepgraph: first batch of v5.2 changes cpupower: Fix coredump on VMWare cpupower: Fix AMD Family 0x17 msr_pstate size cpufreq: imx6q: read OCOTP through nvmem for imx6ul/imx6ull cpufreq: dt-platdev: allow RK3399 to have separate tunables per cluster cpuidle: poll_state: Revise loop termination condition cpuidle: menu: Move the latency_req == 0 special case check cpuidle: menu: Avoid computations for very close timers ... 2018-10-18T07:17:04Z Erik Schmauss erik.schmauss@intel.com 2018-10-17T22:41:20Z urn:sha1:08930d56c76a69716ba56eb111379a559a9b9f42 acpi_gbl_group_module_level_code and acpi_gbl_execute_tables_as_methods were used to enable different table load behavior. The different table load behaviors are as follows: A.) acpi_gbl_group_module_level_code enabled the legacy approach where ASL if statements are executed after the namespace object has been loaded. B.) acpi_gbl_execute_tables_as_methods is currently used to enable the table load to be a method invocation. This meaning that ASL If statements are executed in-line rather than deferred until after the ACPI namespace has been populated. This is the correct behavior and option A will be removed in the future. We do not support a table load behavior where these variables are assigned the same value. In otherwords, we only support option A or B and do not need acpi_gbl_group_module_level_code to enable A. From now on, acpi_gbl_execute_tables_as_methods == 0 enables option A and acpi_gbl_execute_tables_as_methods == 1 enables option B. Note: option A is expected to be removed in the future and option B will become the only supported table load behavior. Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2018-10-16T08:33:38Z Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2018-10-15T17:37:19Z urn:sha1:29523f095397637edca60c627bc3e5c25a02c40f The Continuous Performance Control package may contain an optional guaranteed performance field. Add support to read guaranteed performance from _CPC. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2018-10-04T07:09:01Z Bob Moore robert.moore@intel.com 2018-10-03T18:45:39Z urn:sha1:069de633cefc5efd91b9023c6cfeff9914b59348 Version 20181003 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2018-10-04T07:06:27Z Bob Moore robert.moore@intel.com 2018-10-03T18:45:36Z urn:sha1:e324e10109fc4fdd3a7d63cbc4114da978dce835 Mostly for access to Generic Serial Bus, but also cleanup for the other fields. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2018-10-04T07:06:27Z Bob Moore robert.moore@intel.com 2018-10-03T18:45:34Z urn:sha1:f99b89eefeb635a675b2883fcd2148b7cfc77319 Cleanup for this write-then-read protocol. The ACPI specification is rather unclear for the entire generic_serial_bus, but this change works correctly on the Surface 3. Reported-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2018-10-02T21:04:40Z Mika Westerberg mika.westerberg@linux.intel.com 2018-09-27T21:57:05Z urn:sha1:5f5e4890d57a8af5da72c9d73a4efa9bad43a7a3 It is possible to have _DSD entries where the data is compatible with device properties format but are using different GUID for various reasons. In addition to that there can be many such _DSD entries for a single device such as for PCIe root port used to host a Thunderbolt hierarchy: Scope (\_SB.PCI0.RP21) { Name (_DSD, Package () { ToUUID ("6211e2c0-58a3-4af3-90e1-927a4e0c55a4"), Package () { Package () {"HotPlugSupportInD3", 1} }, ToUUID ("efcc06cc-73ac-4bc3-bff0-76143807c389"), Package () { Package () {"ExternalFacingPort", 1}, Package () {"UID", 0 } } }) } More information about these new _DSD entries can be found in: https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports To make these available for drivers via unified device property APIs, modify ACPI property core so that it supports multiple _DSD entries organized in a linked list. We also store GUID of each _DSD entry in struct acpi_device_properties in case there is need to differentiate between entries. The supported GUIDs are then listed in prp_guids array. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> 2018-09-08T09:19:28Z Christoph Hellwig hch@lst.de 2018-08-24T08:28:18Z urn:sha1:dc3c05504d38849f77149cb962caeaedd1efa127 This goes through a lot of hooks just to call arch_teardown_dma_ops. Replace it with a direct call instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>