Commit Graph

74800 Commits

Author SHA1 Message Date
Siddharth Menon
d00c2359fc Docs: Update LSM/apparmor.rst
After the deprecation of CONFIG_DEFAULT_SECURITY, it is no longer used
to enable and configure AppArmor. Since kernel 5.0,
`CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE` is not used either.
Instead, the CONFIG_LSM parameter manages the order and selection of LSMs.

Signed-off-by: Siddharth Menon <simeddon@gmail.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2024-11-26 19:21:06 -08:00
Linus Torvalds
08906abc8c remoteproc updates for v6.13
Make Qualcomm TrustZone Peripherial Authentication Service-remoteproc
 identifier/name human friendly. Add audio DSP support for the Qualcomm
 SAR2130P. Ensure IMEM access in the Qualcomm modem remoteproc driver is
 performed prior to the firmware enabling the XPU and locking us out.
 
 Improve error handling, error logging, compile testing support, and a
 few other stylistic things across a variety of the drivers.
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Merge tag 'rproc-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

Pull remoteproc updates from Bjorn Andersson:
 "Make Qualcomm TrustZone Peripherial Authentication Service-remoteproc
  identifier/name human friendly. Add audio DSP support for the Qualcomm
  SAR2130P. Ensure IMEM access in the Qualcomm modem remoteproc driver
  is performed prior to the firmware enabling the XPU and locking us
  out.

  Improve error handling, error logging, compile testing support, and a
  few other stylistic things across a variety of the drivers"

* tag 'rproc-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (30 commits)
  remoteproc: qcom: wcss: Remove double assignment in q6v5_wcss_probe()
  remoteproc: qcom_q6v5_mss: Re-order writes to the IMEM region
  remoteproc: qcom_wcnss_iris: Simplify with dev_err_probe()
  remoteproc: qcom_q6v5_wcss: Simplify with dev_err_probe()
  remoteproc: qcom_q6v5_pas: Simplify with dev_err_probe()
  remoteproc: qcom_q6v5_mss: Drop redundant error printks in probe
  remoteproc: qcom_q6v5_mss: Simplify with dev_err_probe()
  remoteproc: qcom_q6v5_adsp: Simplify with dev_err_probe()
  remoteproc: qcom_q6v5_pas: disable auto boot for wpss
  remoteproc: qcom: pas: Make remoteproc name human friendly
  remoteproc: qcom: pas: enable SAR2130P audio DSP support
  remoteproc: qcom: pas: add minidump_id to SM8350 resources
  dt-bindings: remoteproc: qcom,sm8350-pas: add SAR2130P aDSP compatible
  dt-bindings: remoteproc: qcom,sm8550-pas: Add SM8750 ADSP
  remoteproc: qcom: wcss: Remove subdevs on the error path of q6v5_wcss_probe()
  remoteproc: qcom: adsp: Remove subdevs on the error path of adsp_probe()
  remoteproc: qcom: pas: Remove subdevs on the error path of adsp_probe()
  remoteproc: Switch back to struct platform_driver::remove()
  remoteproc: k3-dsp: Force cast from iomem address space
  remoteproc: k3-r5: Force cast from iomem address space
  ...
2024-11-26 18:34:13 -08:00
Linus Torvalds
1746db26f8 pci-v6.13-changes
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Merge tag 'pci-v6.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Make pci_stop_dev() and pci_destroy_dev() safe so concurrent
     callers can't stop a device multiple times, even as we migrate from
     the global pci_rescan_remove_lock to finer-grained locking (Keith
     Busch)

   - Improve pci_walk_bus() implementation by making it recursive and
     moving locking up to avoid need for a 'locked' parameter (Keith
     Busch)

   - Unexport pci_walk_bus_locked(), which is only used internally by
     the PCI core (Keith Busch)

   - Detect some Thunderbolt chips that are built-in and hence
     'trustworthy' by a heuristic since the 'ExternalFacingPort' and
     'usb4-host-interface' ACPI properties are not quite enough (Esther
     Shimanovich)

  Resource management:

   - Use PCI bus addresses (not CPU addresses) in 'ranges' properties
     when building dynamic DT nodes so systems where PCI and CPU
     addresses differ work correctly (Andrea della Porta)

   - Tidy resource sizing and assignment with helpers to reduce
     redundancy (Ilpo Järvinen)

   - Improve pdev_sort_resources() 'bogus alignment' warning to be more
     specific (Ilpo Järvinen)

  Driver binding:

   - Convert driver .remove_new() callbacks to .remove() again to finish
     the conversion from returning 'int' to being 'void' (Sergio
     Paracuellos)

   - Export pcim_request_all_regions(), a managed interface to request
     all BARs (Philipp Stanner)

   - Replace pcim_iomap_regions_request_all() with
     pcim_request_all_regions(), and pcim_iomap_table()[n] with
     pcim_iomap(n), in the following drivers: ahci, crypto qat, crypto
     octeontx2, intel_th, iwlwifi, ntb idt, serial rp2, ALSA korg1212
     (Philipp Stanner)

   - Remove the now unused pcim_iomap_regions_request_all() (Philipp
     Stanner)

   - Export pcim_iounmap_region(), a managed interface to unmap and
     release a PCI BAR (Philipp Stanner)

   - Replace pcim_iomap_regions(mask) with pcim_iomap_region(n), and
     pcim_iounmap_regions(mask) with pcim_iounmap_region(n), in the
     following drivers: fpga dfl-pci, block mtip32xx, gpio-merrifield,
     cavium (Philipp Stanner)

  Error handling:

   - Add sysfs 'reset_subordinate' to reset the entire hierarchy below a
     bridge; previously Secondary Bus Reset could only be used when
     there was a single device below a bridge (Keith Busch)

   - Warn if we reset a running device where the driver didn't register
     pci_error_handlers notification callbacks (Keith Busch)

  ASPM:

   - Disable ASPM L1 before touching L1 PM Substates to follow the spec
     closer and avoid a CPU load timeout on some platforms (Ajay
     Agarwal)

   - Set devices below Intel VMD to D0 before enabling ASPM L1 Substates
     as required per spec for all L1 Substates changes (Jian-Hong Pan)

  Power management:

   - Enable starfive controller runtime PM before probing host bridge
     (Mayank Rana)

   - Enable runtime power management for host bridges (Krishna chaitanya
     chundru)

  Power control:

   - Use of_platform_device_create() instead of of_platform_populate()
     to create pwrctl platform devices so we can control it based on the
     child nodes (Manivannan Sadhasivam)

   - Create pwrctrl platform devices only if there's a relevant power
     supply property (Manivannan Sadhasivam)

   - Add device link from the pwrctl supplier to the PCI dev to ensure
     pwrctl drivers are probed before the PCI dev driver; this avoids a
     race where pwrctl could change device power state while the PCI
     driver was active (Manivannan Sadhasivam)

   - Find pwrctl device for removal with of_find_device_by_node()
     instead of searching all children of the parent (Manivannan
     Sadhasivam)

   - Rename 'pwrctl' to 'pwrctrl' to match new bandwidth controller
     ('bwctrl') and hotplug files (Bjorn Helgaas)

  Bandwidth control:

   - Add read/modify/write locking for Link Control 2, which is used to
     manage Link speed (Ilpo Järvinen)

   - Extract Link Bandwidth Management Status check into
     pcie_lbms_seen(), where it can be shared between the bandwidth
     controller and quirks that use it to help retrain failed links
     (Ilpo Järvinen)

   - Re-add Link Bandwidth notification support with updates to address
     the reasons it was previously reverted (Alexandru Gagniuc, Ilpo
     Järvinen)

   - Add pcie_set_target_speed() and related functionality so drivers
     can manage PCIe Link speed based on thermal or other constraints
     (Ilpo Järvinen)

   - Add a thermal cooling driver to throttle PCIe Links via the
     existing thermal management framework (Ilpo Järvinen)

   - Add a userspace selftest for the PCIe bandwidth controller (Ilpo
     Järvinen)

  PCI device hotplug:

   - Add hotplug controller driver for Marvell OCTEON multi-function
     device where function 0 has a management console interface to
     enable/disable and provision various personalities for the other
     functions (Shijith Thotton)

   - Retain a reference to the pci_bus for the lifetime of a pci_slot to
     avoid a use-after-free when the thunderbolt driver resets USB4 host
     routers on boot, causing hotplug remove/add of downstream docks or
     other devices (Lukas Wunner)

   - Remove unused cpcihp struct cpci_hp_controller_ops.hardware_test
     (Guilherme Giacomo Simoes)

   - Remove unused cpqphp struct ctrl_dbg.ctrl (Christophe JAILLET)

   - Use pci_bus_read_dev_vendor_id() instead of hand-coded presence
     detection in cpqphp (Ilpo Järvinen)

   - Simplify cpqphp enumeration, which is already simple-minded and
     doesn't handle devices below hot-added bridges (Ilpo Järvinen)

  Virtualization:

   - Add ACS quirk for Wangxun FF5xxx NICs, which don't advertise an ACS
     capability but do isolate functions as though PCI_ACS_RR and
     PCI_ACS_CR were set, so the functions can be in independent IOMMU
     groups (Mengyuan Lou)

  TLP Processing Hints (TPH):

   - Add and document TLP Processing Hints (TPH) support so drivers can
     enable and disable TPH and the kernel can save/restore TPH
     configuration (Wei Huang)

   - Add TPH Steering Tag support so drivers can retrieve Steering Tag
     values associated with specific CPUs via an ACPI _DSM to improve
     performance by directing DMA writes closer to their consumers (Wei
     Huang)

  Data Object Exchange (DOE):

   - Wait up to 1 second for DOE Busy bit to clear before writing a
     request to the mailbox to avoid failures if the mailbox is still
     busy from a previous transfer (Gregory Price)

  Endpoint framework:

   - Skip attempts to allocate from endpoint controller memory window if
     the requested size is larger than the window (Damien Le Moal)

   - Add and document pci_epc_mem_map() and pci_epc_mem_unmap() to
     handle controller-specific size and alignment constraints, and add
     test cases to the endpoint test driver (Damien Le Moal)

   - Implement dwc pci_epc_ops.align_addr() so pci_epc_mem_map() can
     observe DWC-specific alignment requirements (Damien Le Moal)

   - Synchronously cancel command handler work in endpoint test before
     cleaning up DMA and BARs (Damien Le Moal)

   - Respect endpoint page size in dw_pcie_ep_align_addr() (Niklas
     Cassel)

   - Use dw_pcie_ep_align_addr() in dw_pcie_ep_raise_msi_irq() and
     dw_pcie_ep_raise_msix_irq() instead of open coding the equivalent
     (Niklas Cassel)

   - Avoid NULL dereference if Modem Host Interface Endpoint lacks
     'mmio' DT property (Zhongqiu Han)

   - Release PCI domain ID of Endpoint controller parent (not controller
     itself) and before unregistering the controller, to avoid
     use-after-free (Zijun Hu)

   - Clear secondary (not primary) EPC in pci_epc_remove_epf() when
     removing the secondary controller associated with an NTB (Zijun Hu)

  Cadence PCIe controller driver:

   - Lower severity of 'phy-names' message (Bartosz Wawrzyniak)

  Freescale i.MX6 PCIe controller driver:

   - Fix suspend/resume support on i.MX6QDL, which has a hardware
     erratum that prevents use of L2 (Stefan Eichenberger)

  Intel VMD host bridge driver:

   - Add 0xb60b and 0xb06f Device IDs for client SKUs (Nirmal Patel)

  MediaTek PCIe Gen3 controller driver:

   - Update mediatek-gen3 DT binding to require the exact number of
     clocks for each SoC (Fei Shao)

   - Add support for DT 'max-link-speed' and 'num-lanes' properties to
     restrict the link speed and width (AngeloGioacchino Del Regno)

  Microchip PolarFlare PCIe controller driver:

   - Add DT and driver support for using either of the two PolarFire
     Root Ports (Conor Dooley)

  NVIDIA Tegra194 PCIe controller driver:

   - Move endpoint controller cleanups that depend on refclk from the
     host to the notifier that tells us the host has deasserted PERST#,
     when refclk should be valid (Manivannan Sadhasivam)

  Qualcomm PCIe controller driver:

   - Add qcom SAR2130P DT binding with an additional clock (Dmitry
     Baryshkov)

   - Enable MSI interrupts if 'global' IRQ is supported, since a
     previous commit unintentionally masked them (Manivannan Sadhasivam)

   - Move endpoint controller cleanups that depend on refclk from the
     host to the notifier that tells us the host has deasserted PERST#,
     when refclk should be valid (Manivannan Sadhasivam)

   - Add DT binding and driver support for IPQ9574, with Synopsys IP
     v5.80a and Qcom IP 1.27.0 (devi priya)

   - Move the OPP "operating-points-v2" table from the
     qcom,pcie-sm8450.yaml DT binding to qcom,pcie-common.yaml, where it
     can be used by other Qcom platforms (Qiang Yu)

   - Add 'global' SPI interrupt for events like link-up, link-down to
     qcom,pcie-x1e80100 DT binding so we can start enumeration when the
     link comes up (Qiang Yu)

   - Disable ASPM L0s for qcom,pcie-x1e80100 since the PHY is not tuned
     to support this (Qiang Yu)

   - Add ops_1_21_0 for SC8280X family SoC, which doesn't use the
     'iommu-map' DT property and doesn't need BDF-to-SID translation
     (Qiang Yu)

  Rockchip PCIe controller driver:

   - Define ROCKCHIP_PCIE_AT_SIZE_ALIGN to replace magic 256 endpoint
     .align value (Damien Le Moal)

   - When unmapping an endpoint window, compute the region index instead
     of searching for it, and verify that the address was mapped (Damien
     Le Moal)

   - When mapping an endpoint window, verify that the address hasn't
     been mapped already (Damien Le Moal)

   - Implement pci_epc_ops.align_addr() for rockchip-ep (Damien Le Moal)

   - Fix MSI IRQ data mapping to observe the alignment constraint, which
     fixes intermittent page faults in memcpy_toio() and memcpy_fromio()
     (Damien Le Moal)

   - Rename rockchip_pcie_parse_ep_dt() to
     rockchip_pcie_ep_get_resources() for consistency with similar DT
     interfaces (Damien Le Moal)

   - Skip the unnecessary link train in rockchip_pcie_ep_probe() and do
     it only in the endpoint start operation (Damien Le Moal)

   - Implement pci_epc_ops.stop_link() to disable link training and
     controller configuration (Damien Le Moal)

   - Attempt link training at 5 GT/s when both partners support it
     (Damien Le Moal)

   - Add a handler for PERST# signal so we can detect host-initiated
     resets and start link training after PERST# is deasserted (Damien
     Le Moal)

  Synopsys DesignWare PCIe controller driver:

   - Clear outbound address on unmap so dw_pcie_find_index() won't match
     an ATU index that was already unmapped (Damien Le Moal)

   - Use of_property_present() instead of of_property_read_bool() when
     testing for presence of non-boolean DT properties (Rob Herring)

   - Advertise 1MB size if endpoint supports Resizable BARs, which was
     inadvertently lost in v6.11 (Niklas Cassel)

  TI J721E PCIe driver:

   - Add PCIe support for J722S SoC (Siddharth Vadapalli)

   - Delay PCIE_T_PVPERL_MS (100 ms), not just PCIE_T_PERST_CLK_US (100
     us), before deasserting PERST# to ensure power and refclk are
     stable (Siddharth Vadapalli)

  TI Keystone PCIe controller driver:

   - Set the 'ti,keystone-pcie' mode so v3.65a devices work in Root
     Complex mode (Kishon Vijay Abraham I)

   - Try to avoid unrecoverable SError for attempts to issue config
     transactions when the link is down; this is racy but the best we
     can do (Kishon Vijay Abraham I)

  Miscellaneous:

   - Reorganize kerneldoc parameter names to match order in function
     signature (Julia Lawall)

   - Fix sysfs reset_method_store() memory leak (Todd Kjos)

   - Simplify pci_create_slot() (Ilpo Järvinen)

   - Fix incorrect printf format specifiers in pcitest (Luo Yifan)"

* tag 'pci-v6.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (127 commits)
  PCI: rockchip-ep: Handle PERST# signal in EP mode
  PCI: rockchip-ep: Improve link training
  PCI: rockship-ep: Implement the pci_epc_ops::stop_link() operation
  PCI: rockchip-ep: Refactor endpoint link training enable
  PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() MSI-X hiding
  PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() memory allocations
  PCI: rockchip-ep: Rename rockchip_pcie_parse_ep_dt()
  PCI: rockchip-ep: Fix MSI IRQ data mapping
  PCI: rockchip-ep: Implement the pci_epc_ops::align_addr() operation
  PCI: rockchip-ep: Improve rockchip_pcie_ep_map_addr()
  PCI: rockchip-ep: Improve rockchip_pcie_ep_unmap_addr()
  PCI: rockchip-ep: Use a macro to define EP controller .align feature
  PCI: rockchip-ep: Fix address translation unit programming
  PCI/pwrctrl: Rename pwrctrl functions and structures
  PCI/pwrctrl: Rename pwrctl files to pwrctrl
  PCI/pwrctl: Remove pwrctl device without iterating over all children of pwrctl parent
  PCI/pwrctl: Ensure that pwrctl drivers are probed before PCI client drivers
  PCI/pwrctl: Create pwrctl device only if at least one power supply is present
  PCI/pwrctl: Use of_platform_device_create() to create pwrctl devices
  tools: PCI: Fix incorrect printf format specifiers
  ...
2024-11-26 18:05:44 -08:00
Linus Torvalds
798bb342e0 Rust changes for v6.13
Toolchain and infrastructure:
 
  - Enable a series of lints, including safety-related ones, e.g. the
    compiler will now warn about missing safety comments, as well as
    unnecessary ones. How safety documentation is organized is a frequent
    source of review comments, thus having the compiler guide new
    developers on where they are expected (and where not) is very nice.
 
  - Start using '#[expect]': an interesting feature in Rust (stabilized
    in 1.81.0) that makes the compiler warn if an expected warning was
    _not_ emitted. This is useful to avoid forgetting cleaning up locally
    ignored diagnostics ('#[allow]'s).
 
  - Introduce '.clippy.toml' configuration file for Clippy, the Rust
    linter, which will allow us to tweak its behaviour. For instance, our
    first use cases are declaring a disallowed macro and, more
    importantly, enabling the checking of private items.
 
  - Lints-related fixes and cleanups related to the items above.
 
  - Migrate from 'receiver_trait' to 'arbitrary_self_types': to get the
    kernel into stable Rust, one of the major pieces of the puzzle is the
    support to write custom types that can be used as 'self', i.e. as
    receivers, since the kernel needs to write types such as 'Arc' that
    common userspace Rust would not. 'arbitrary_self_types' has been
    accepted to become stable, and this is one of the steps required to
    get there.
 
  - Remove usage of the 'new_uninit' unstable feature.
 
  - Use custom C FFI types. Includes a new 'ffi' crate to contain our
    custom mapping, instead of using the standard library 'core::ffi'
    one. The actual remapping will be introduced in a later cycle.
 
  - Map '__kernel_{size_t,ssize_t,ptrdiff_t}' to 'usize'/'isize' instead
    of 32/64-bit integers.
 
  - Fix 'size_t' in bindgen generated prototypes of C builtins.
 
  - Warn on bindgen < 0.69.5 and libclang >= 19.1 due to a double issue
    in the projects, which we managed to trigger with the upcoming
    tracepoint support. It includes a build test since some distributions
    backported the fix (e.g. Debian -- thanks!). All major distributions
    we list should be now OK except Ubuntu non-LTS.
 
 'macros' crate:
 
  - Adapt the build system to be able run the doctests there too; and
    clean up and enable the corresponding doctests.
 
 'kernel' crate:
 
  - Add 'alloc' module with generic kernel allocator support and remove
    the dependency on the Rust standard library 'alloc' and the extension
    traits we used to provide fallible methods with flags.
 
    Add the 'Allocator' trait and its implementations '{K,V,KV}malloc'.
    Add the 'Box' type (a heap allocation for a single value of type 'T'
    that is also generic over an allocator and considers the kernel's GFP
    flags) and its shorthand aliases '{K,V,KV}Box'. Add 'ArrayLayout'
    type. Add 'Vec' (a contiguous growable array type) and its shorthand
    aliases '{K,V,KV}Vec', including iterator support.
 
    For instance, now we may write code such as:
 
        let mut v = KVec::new();
        v.push(1, GFP_KERNEL)?;
        assert_eq!(&v, &[1]);
 
    Treewide, move as well old users to these new types.
 
  - 'sync' module: add global lock support, including the
    'GlobalLockBackend' trait; the 'Global{Lock,Guard,LockedBy}' types
     and the 'global_lock!' macro. Add the 'Lock::try_lock' method.
 
  - 'error' module: optimize 'Error' type to use 'NonZeroI32' and make
    conversion functions public.
 
  - 'page' module: add 'page_align' function.
 
  - Add 'transmute' module with the existing 'FromBytes' and 'AsBytes'
    traits.
 
  - 'block::mq::request' module: improve rendered documentation.
 
  - 'types' module: extend 'Opaque' type documentation and add simple
    examples for the 'Either' types.
 
 drm/panic:
 
  - Clean up a series of Clippy warnings.
 
 Documentation:
 
  - Add coding guidelines for lints and the '#[expect]' feature.
 
  - Add Ubuntu to the list of distributions in the Quick Start guide.
 
 MAINTAINERS:
  - Add Danilo Krummrich as maintainer of the new 'alloc' module.
 
 And a few other small cleanups and fixes.
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Merge tag 'rust-6.13' of https://github.com/Rust-for-Linux/linux

Pull rust updates from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Enable a series of lints, including safety-related ones, e.g. the
     compiler will now warn about missing safety comments, as well as
     unnecessary ones. How safety documentation is organized is a
     frequent source of review comments, thus having the compiler guide
     new developers on where they are expected (and where not) is very
     nice.

   - Start using '#[expect]': an interesting feature in Rust (stabilized
     in 1.81.0) that makes the compiler warn if an expected warning was
     _not_ emitted. This is useful to avoid forgetting cleaning up
     locally ignored diagnostics ('#[allow]'s).

   - Introduce '.clippy.toml' configuration file for Clippy, the Rust
     linter, which will allow us to tweak its behaviour. For instance,
     our first use cases are declaring a disallowed macro and, more
     importantly, enabling the checking of private items.

   - Lints-related fixes and cleanups related to the items above.

   - Migrate from 'receiver_trait' to 'arbitrary_self_types': to get the
     kernel into stable Rust, one of the major pieces of the puzzle is
     the support to write custom types that can be used as 'self', i.e.
     as receivers, since the kernel needs to write types such as 'Arc'
     that common userspace Rust would not. 'arbitrary_self_types' has
     been accepted to become stable, and this is one of the steps
     required to get there.

   - Remove usage of the 'new_uninit' unstable feature.

   - Use custom C FFI types. Includes a new 'ffi' crate to contain our
     custom mapping, instead of using the standard library 'core::ffi'
     one. The actual remapping will be introduced in a later cycle.

   - Map '__kernel_{size_t,ssize_t,ptrdiff_t}' to 'usize'/'isize'
     instead of 32/64-bit integers.

   - Fix 'size_t' in bindgen generated prototypes of C builtins.

   - Warn on bindgen < 0.69.5 and libclang >= 19.1 due to a double issue
     in the projects, which we managed to trigger with the upcoming
     tracepoint support. It includes a build test since some
     distributions backported the fix (e.g. Debian -- thanks!). All
     major distributions we list should be now OK except Ubuntu non-LTS.

  'macros' crate:

   - Adapt the build system to be able run the doctests there too; and
     clean up and enable the corresponding doctests.

  'kernel' crate:

   - Add 'alloc' module with generic kernel allocator support and remove
     the dependency on the Rust standard library 'alloc' and the
     extension traits we used to provide fallible methods with flags.

     Add the 'Allocator' trait and its implementations '{K,V,KV}malloc'.
     Add the 'Box' type (a heap allocation for a single value of type
     'T' that is also generic over an allocator and considers the
     kernel's GFP flags) and its shorthand aliases '{K,V,KV}Box'. Add
     'ArrayLayout' type. Add 'Vec' (a contiguous growable array type)
     and its shorthand aliases '{K,V,KV}Vec', including iterator
     support.

     For instance, now we may write code such as:

         let mut v = KVec::new();
         v.push(1, GFP_KERNEL)?;
         assert_eq!(&v, &[1]);

     Treewide, move as well old users to these new types.

   - 'sync' module: add global lock support, including the
     'GlobalLockBackend' trait; the 'Global{Lock,Guard,LockedBy}' types
     and the 'global_lock!' macro. Add the 'Lock::try_lock' method.

   - 'error' module: optimize 'Error' type to use 'NonZeroI32' and make
     conversion functions public.

   - 'page' module: add 'page_align' function.

   - Add 'transmute' module with the existing 'FromBytes' and 'AsBytes'
     traits.

   - 'block::mq::request' module: improve rendered documentation.

   - 'types' module: extend 'Opaque' type documentation and add simple
     examples for the 'Either' types.

  drm/panic:

   - Clean up a series of Clippy warnings.

  Documentation:

   - Add coding guidelines for lints and the '#[expect]' feature.

   - Add Ubuntu to the list of distributions in the Quick Start guide.

  MAINTAINERS:

   - Add Danilo Krummrich as maintainer of the new 'alloc' module.

  And a few other small cleanups and fixes"

* tag 'rust-6.13' of https://github.com/Rust-for-Linux/linux: (82 commits)
  rust: alloc: Fix `ArrayLayout` allocations
  docs: rust: remove spurious item in `expect` list
  rust: allow `clippy::needless_lifetimes`
  rust: warn on bindgen < 0.69.5 and libclang >= 19.1
  rust: use custom FFI integer types
  rust: map `__kernel_size_t` and friends also to usize/isize
  rust: fix size_t in bindgen prototypes of C builtins
  rust: sync: add global lock support
  rust: macros: enable the rest of the tests
  rust: macros: enable paste! use from macro_rules!
  rust: enable macros::module! tests
  rust: kbuild: expand rusttest target for macros
  rust: types: extend `Opaque` documentation
  rust: block: fix formatting of `kernel::block::mq::request` module
  rust: macros: fix documentation of the paste! macro
  rust: kernel: fix THIS_MODULE header path in ThisModule doc comment
  rust: page: add Rust version of PAGE_ALIGN
  rust: helpers: remove unnecessary header includes
  rust: exports: improve grammar in commentary
  drm/panic: allow verbose version check
  ...
2024-11-26 14:00:26 -08:00
Linus Torvalds
e68ce9474a A few late-arriving fixes, plus two more significant changes that were
*almost* ready at the beginning of the merge window:
 
 - A new document on debugging techniques from Sebastian Fricke
 
 - A clarification on MODULE_LICENSE terms meant to head off the sort of
   confusion that led to the recent Tuxedo Computers mess.
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Merge tag 'docs-6.13-2' of git://git.lwn.net/linux

Pull more documentation updates from Jonathan Corbet:
 "A few late-arriving fixes, plus two more significant changes that were
  *almost* ready at the beginning of the merge window:

   - A new document on debugging techniques from Sebastian Fricke

   - A clarification on MODULE_LICENSE terms meant to head off the sort
     of confusion that led to the recent Tuxedo Computers mess"

* tag 'docs-6.13-2' of git://git.lwn.net/linux:
  docs: Add debugging guide for the media subsystem
  docs: Add debugging section to process
  docs/licensing: Clarify wording about "GPL" and "Proprietary"
  docs: core-api/gfp_mask-from-fs-io: indicate that vmalloc supports GFP_NOFS/GFP_NOIO
  Documentation: kernel-doc: enumerate identifier *type*s
  Documentation: pwrseq: Fix trivial misspellings
  Documentation: filesystems: update filename extensions
2024-11-26 13:44:27 -08:00
Linus Torvalds
44b4d13b70 f2fs-for-6.13-rc1
This series introduces a device aliasing feature where user can carve out
 partitions but reclaim the space back by deleting aliased file in root dir.
 In addition to that, there're numerous minor bug fixes in zoned device support,
 checkpoint=disable, extent cache management, fiemap, and lazytime mount option.
 The full list of noticeable changes can be found below.
 
 Enhancement:
  - introduce device aliasing file
  - add stats in debugfs to show multiple devices
  - add a sysfs node to limit max read extent count per-inode
  - modify f2fs_is_checkpoint_ready logic to allow more data to be written with the CP disable
  - decrease spare area for pinned files for zoned devices
 
 Bug fix:
  - Revert "f2fs: remove unreachable lazytime mount option parsing"
  - adjust unusable cap before checkpoint=disable mode
  - fix to drop all discards after creating snapshot on lvm device
  - fix to shrink read extent node in batches
  - fix changing cursegs if recovery fails on zoned device
  - fix to adjust appropriate length for fiemap
  - fix fiemap failure issue when page size is 16KB
  - fix to avoid forcing direct write to use buffered IO on inline_data inode
  - fix to map blocks correctly for direct write
  - fix to account dirty data in __get_secs_required()
  - fix null-ptr-deref in f2fs_submit_page_bio()
  - f2fs: compress: fix inconsistent update of i_blocks in release_compress_blocks and reserve_compress_blocks
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Merge tag 'f2fs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "This series introduces a device aliasing feature where user can carve
  out partitions but reclaim the space back by deleting aliased file in
  root dir.

  In addition to that, there're numerous minor bug fixes in zoned device
  support, checkpoint=disable, extent cache management, fiemap, and
  lazytime mount option. The full list of noticeable changes can be
  found below.

  Enhancements:
   - introduce device aliasing file
   - add stats in debugfs to show multiple devices
   - add a sysfs node to limit max read extent count per-inode
   - modify f2fs_is_checkpoint_ready logic to allow more data to be
     written with the CP disable
   - decrease spare area for pinned files for zoned devices

  Fixes:
   - Revert "f2fs: remove unreachable lazytime mount option parsing"
   - adjust unusable cap before checkpoint=disable mode
   - fix to drop all discards after creating snapshot on lvm device
   - fix to shrink read extent node in batches
   - fix changing cursegs if recovery fails on zoned device
   - fix to adjust appropriate length for fiemap
   - fix fiemap failure issue when page size is 16KB
   - fix to avoid forcing direct write to use buffered IO on inline_data
     inode
   - fix to map blocks correctly for direct write
   - fix to account dirty data in __get_secs_required()
   - fix null-ptr-deref in f2fs_submit_page_bio()
   - fix inconsistent update of i_blocks in release_compress_blocks and
     reserve_compress_blocks"

* tag 'f2fs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (40 commits)
  f2fs: fix to drop all discards after creating snapshot on lvm device
  f2fs: add a sysfs node to limit max read extent count per-inode
  f2fs: fix to shrink read extent node in batches
  f2fs: print message if fscorrupted was found in f2fs_new_node_page()
  f2fs: clear SBI_POR_DOING before initing inmem curseg
  f2fs: fix changing cursegs if recovery fails on zoned device
  f2fs: adjust unusable cap before checkpoint=disable mode
  f2fs: fix to requery extent which cross boundary of inquiry
  f2fs: fix to adjust appropriate length for fiemap
  f2fs: clean up w/ F2FS_{BLK_TO_BYTES,BTYES_TO_BLK}
  f2fs: fix to do cast in F2FS_{BLK_TO_BYTES, BTYES_TO_BLK} to avoid overflow
  f2fs: replace deprecated strcpy with strscpy
  Revert "f2fs: remove unreachable lazytime mount option parsing"
  f2fs: fix to avoid forcing direct write to use buffered IO on inline_data inode
  f2fs: fix to map blocks correctly for direct write
  f2fs: fix race in concurrent f2fs_stop_gc_thread
  f2fs: fix fiemap failure issue when page size is 16KB
  f2fs: remove redundant atomic file check in defragment
  f2fs: fix to convert log type to segment data type correctly
  f2fs: clean up the unused variable additional_reserved_segments
  ...
2024-11-26 12:50:58 -08:00
Linus Torvalds
fb527fc1f3 fuse update for 6.13
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Merge tag 'fuse-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:

 - Add page -> folio conversions (Joanne Koong, Josef Bacik)

 - Allow max size of fuse requests to be configurable with a sysctl
   (Joanne Koong)

 - Allow FOPEN_DIRECT_IO to take advantage of async code path (yangyun)

 - Fix large kernel reads (like a module load) in virtio_fs (Hou Tao)

 - Fix attribute inconsistency in case readdirplus (and plain lookup in
   corner cases) is racing with inode eviction (Zhang Tianci)

 - Fix a WARN_ON triggered by virtio_fs (Asahi Lina)

* tag 'fuse-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (30 commits)
  virtiofs: dax: remove ->writepages() callback
  fuse: check attributes staleness on fuse_iget()
  fuse: remove pages for requests and exclusively use folios
  fuse: convert direct io to use folios
  mm/writeback: add folio_mark_dirty_lock()
  fuse: convert writebacks to use folios
  fuse: convert retrieves to use folios
  fuse: convert ioctls to use folios
  fuse: convert writes (non-writeback) to use folios
  fuse: convert reads to use folios
  fuse: convert readdir to use folios
  fuse: convert readlink to use folios
  fuse: convert cuse to use folios
  fuse: add support in virtio for requests using folios
  fuse: support folios in struct fuse_args_pages and fuse_copy_pages()
  fuse: convert fuse_notify_store to use folios
  fuse: convert fuse_retrieve to use folios
  fuse: use the folio based vmstat helpers
  fuse: convert fuse_writepage_need_send to take a folio
  fuse: convert fuse_do_readpage to use folios
  ...
2024-11-26 12:41:27 -08:00
Linus Torvalds
0637a68b9c SCSI misc on 20241125
Updates to the usual drivers (ufs, lpfc, hisi_sas, st). Amazingly
 enough, no core changes with the biggest set of driver changes being
 ufs (which conflicted with it's own fixes a bit, hence the merges) and
 the rest being minor fixes and updates.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, lpfc, hisi_sas, st).

  Amazingly enough, no core changes with the biggest set of driver
  changes being ufs (which conflicted with it's own fixes a bit, hence
  the merges) and the rest being minor fixes and updates"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (97 commits)
  scsi: st: New session only when Unit Attention for new tape
  scsi: st: Add MTIOCGET and MTLOAD to ioctls allowed after device reset
  scsi: st: Don't modify unknown block number in MTIOCGET
  scsi: ufs: core: Restore SM8650 support
  scsi: sun3: Mark driver struct with __refdata to prevent section mismatch
  scsi: sg: Enable runtime power management
  scsi: qedi: Fix a possible memory leak in qedi_alloc_and_init_sb()
  scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb()
  scsi: fusion: Remove unused variable 'rc'
  scsi: bfa: Fix use-after-free in bfad_im_module_exit()
  scsi: esas2r: Remove unused esas2r_build_cli_req()
  scsi: target: Fix incorrect function name in pscsi_create_type_disk()
  scsi: ufs: Replace deprecated PCI functions
  scsi: Switch back to struct platform_driver::remove()
  scsi: pm8001: Increase request sg length to support 4MiB requests
  scsi: pm8001: Initialize devices in pm8001_alloc_dev()
  scsi: pm8001: Use module param to set pcs event log severity
  scsi: ufs: ufs-mediatek: Configure individual LU queue flags
  scsi: MAINTAINERS: Update UFS Exynos entry
  scsi: lpfc: Copyright updates for 14.4.0.6 patches
  ...
2024-11-25 18:50:55 -08:00
Linus Torvalds
2c22dc1ee3 common: switch back from remove_new() to remove() callback
imx: fix format specifier
 zynqmp: setup IPI for each child node
 thead: Add th1520 driver and bindings
 qcom: add SM8750 and SAR2130p compatibles
       fix expected clocks for callbacks
       use IRQF_NO_SUSPEND for cpucp
 mtk-cmdq: switch to __pm_runtime_put_autosuspend()
           fix alloc size of clocks
 mpfs: fix reg properties
 ti-msgmgr: don't use of_match_ptr helper
            enable COMPILE_TEST build
 pcc: consider the PCC_ACK_FLAG
 arm_mhuv2: fix non-fatal improper reuse of variable
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Merge tag 'mailbox-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox

Pull mailbox updates from Jassi Brar:
 "Common:
   - switch back from remove_new() to remove() callback

  imx:
   - fix format specifier

  zynqmp:
   - setup IPI for each child node

  thead:
   - Add th1520 driver and bindings

  qcom:
   - add SM8750 and SAR2130p compatibles
   - fix expected clocks for callbacks
   - use IRQF_NO_SUSPEND for cpucp

  mtk-cmdq:
   - switch to __pm_runtime_put_autosuspend()
   - fix alloc size of clocks

  mpfs:
   - fix reg properties

  ti-msgmgr:
   - don't use of_match_ptr helper
   - enable COMPILE_TEST build

  pcc:
   - consider the PCC_ACK_FLAG

  arm_mhuv2:
   - fix non-fatal improper reuse of variable"

* tag 'mailbox-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
  mailbox: pcc: Check before sending MCTP PCC response ACK
  mailbox: Switch back to struct platform_driver::remove()
  mailbox: imx: Modify the incorrect format specifier
  mailbox: arm_mhuv2: clean up loop in get_irq_chan_comb()
  mailbox: zynqmp: setup IPI for each valid child node
  dt-bindings: mailbox: Add thead,th1520-mailbox bindings
  mailbox: Introduce support for T-head TH1520 Mailbox driver
  mailbox: mtk-cmdq: fix wrong use of sizeof in cmdq_get_clocks()
  dt-bindings: mailbox: qcom-ipcc: Add SM8750
  dt-bindings: mailbox: qcom,apcs-kpss-global: correct expected clocks for fallbacks
  dt-bindings: mailbox: qcom-ipcc: Add SAR2130P compatible
  mailbox: ti-msgmgr: Allow building under COMPILE_TEST
  mailbox: ti-msgmgr: Remove use of of_match_ptr() helper
  mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag
  mailbox: mtk-cmdq-mailbox: Switch to __pm_runtime_put_autosuspend()
  mailbox: mpfs: support new, syscon based, devicetree configuration
  dt-bindings: mailbox: mpfs: fix reg properties
2024-11-25 17:31:39 -08:00
Linus Torvalds
2d32fba02e This is the bulk of the pin control changes for v6.13:
No core changes this time.
 
 New drivers:
 
 - Xlinix Versal pin control driver.
 
 - Ocelot LAN969x pin control driver.
 
 - T-Head TH1520 RISC-V SoC pin control driver.
 
 - Qualcomm SM8750, IPQ5424, QCS8300, SAR2130P and QCS615 SoC
   pin control drivers.
 
 - Qualcomm SM8750 LPASS (low power audio subsystem)
   pin control driver.
 
 - Qualcomm PM8937 mixsig IC pin control support, GPIO and
   MPP (multi-purpose-pin).
 
 - Samsung Exynos8895 and Exynos9810 SoC pin control driver.
 
 - SpacemiT K1 SoC pin control driver.
 
 - Airhoa EN7581 IC pin control driver.
 
 Improvements:
 
 - The Renesas subdriver now supports schmitt-trigger and
   open drain pin configurations if the hardware supports it.
 
 - Support GPIOF and GPIOG banks in the Aspeed G6 SoC.
 
 - Support the DSW community in the Intel Elkhartlake SoC.
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Merge tag 'pinctrl-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "No core changes this time.

  New drivers:

   - Xlinix Versal pin control driver

   - Ocelot LAN969x pin control driver

   - T-Head TH1520 RISC-V SoC pin control driver

   - Qualcomm SM8750, IPQ5424, QCS8300, SAR2130P and QCS615 SoC pin
     control drivers

   - Qualcomm SM8750 LPASS (low power audio subsystem) pin control
     driver

   - Qualcomm PM8937 mixsig IC pin control support, GPIO and MPP
     (multi-purpose-pin)

   - Samsung Exynos8895 and Exynos9810 SoC pin control driver

   - SpacemiT K1 SoC pin control driver

   - Airhoa EN7581 IC pin control driver

  Improvements:

   - The Renesas subdriver now supports schmitt-trigger and open drain
     pin configurations if the hardware supports it

   - Support GPIOF and GPIOG banks in the Aspeed G6 SoC

   - Support the DSW community in the Intel Elkhartlake SoC"

* tag 'pinctrl-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (105 commits)
  pinctrl: airoha: Use unsigned long for bit search
  pinctrl: k210: Undef K210_PC_DEFAULT
  pinctrl: qcom: spmi: fix debugfs drive strength
  pinctrl: qcom: Add sm8750 pinctrl driver
  dt-bindings: pinctrl: qcom: Add sm8750 pinctrl
  pinctrl: cy8c95x0: remove unneeded goto labels
  pinctrl: cy8c95x0: embed iterator to the for-loop
  pinctrl: cy8c95x0: Use temporary variable for struct device
  pinctrl: cy8c95x0: use flexible sleeping in reset function
  pinctrl: cy8c95x0: switch to using devm_regulator_get_enable()
  pinctrl: cy8c95x0: Use 2-argument strscpy()
  dt-bindings: pinctrl: sx150xq: allow gpio line naming
  pinctrl: single: add marvell,pxa1908-padconf compatible
  dt-bindings: pinctrl: pinctrl-single: add marvell,pxa1908-padconf compatible
  dt-bindings: pinctrl: correct typo of description for cv1800
  pinctrl: qcom: spmi-mpp: Add PM8937 compatible
  dt-bindings: pinctrl: qcom,pmic-mpp: Document PM8937 compatible
  pinctrl: qcom-pmic-gpio: add support for PM8937
  dt-bindings: pinctrl: qcom,pmic-gpio: add PM8937
  pinctrl: Use of_property_present() for non-boolean properties
  ...
2024-11-25 17:24:51 -08:00
Linus Torvalds
70dbb12e95 i2c-for-6.13-part2
Andi was super busy the last weeks, so this pull requests contains one
 series (nomadik) and a number of smaller additions which were ready to
 go but nearly overlooked. Despite the late collection, they have been
 properly reviewed and have been in -next for 6 days now in Andi's tree.
 
 New feature support:
  - Added support for frequencies up to 3.4 MHz on Nomadik I2C.
  - DesignWare now accounts for bus capacitance and clock
    optimisation (declared as new parameters in the binding) to
    improve the calculation of signal rise and fall times
    (t_high and t_low).
 
 New Hardware support:
  - DWAPB I2C controller on FUJITSU-MONAKA (new ACPI HID).
  - Allwinner A523 (new compatible ID).
  - Mobileye EyeQ6H (new compatible ID).
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Merge tag 'i2c-for-6.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull more i2c updates from Wolfram Sang:
 "Andi was super busy the last weeks, so this pull requests contains one
  series (nomadik) and a number of smaller additions which were ready to
  go but nearly overlooked.

  New feature support:

   - Added support for frequencies up to 3.4 MHz on Nomadik I2C

   - DesignWare now accounts for bus capacitance and clock optimisation
     (declared as new parameters in the binding) to improve the
     calculation of signal rise and fall times (t_high and t_low)

  New Hardware support:

   - DWAPB I2C controller on FUJITSU-MONAKA (new ACPI HID)

   - Allwinner A523 (new compatible ID)

   - Mobileye EyeQ6H (new compatible ID)"

* tag 'i2c-for-6.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  MAINTAINERS: transfer i2c-aspeed maintainership from Brendan to Ryan
  i2c: designware: determine HS tHIGH and tLOW based on HW parameters
  dt-bindings: i2c: snps,designware-i2c: declare bus capacitance and clk freq optimized
  i2c: nomadik: support >=1MHz speed modes
  i2c: nomadik: fix BRCR computation
  i2c: nomadik: support Mobileye EyeQ6H I2C controller
  i2c: nomadik: switch from of_device_is_compatible() to of_match_device()
  dt-bindings: i2c: nomadik: support 400kHz < clock-frequency <= 3.4MHz
  dt-bindings: i2c: nomadik: add mobileye,eyeq6h-i2c bindings
  dt-bindings: i2c: mv64xxx: Add Allwinner A523 compatible string
  i2c: designware: Add ACPI HID for DWAPB I2C controller on FUJITSU-MONAKA
  i2c: qup: use generic device property accessors
2024-11-25 17:15:12 -08:00
Linus Torvalds
e06635e26c slab updates for 6.13
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Merge tag 'slab-for-6.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab updates from Vlastimil Babka:

 - Add new slab_strict_numa boot parameter to enforce per-object memory
   policies on top of slab folio policies, for systems where saving cost
   of remote accesses is more important than minimizing slab allocation
   overhead (Christoph Lameter)

 - Fix for freeptr_offset alignment check being too strict for m68k
   (Geert Uytterhoeven)

 - krealloc() fixes for not violating __GFP_ZERO guarantees on
   krealloc() when slub_debug (redzone and object tracking) is enabled
   (Feng Tang)

 - Fix a memory leak in case sysfs registration fails for a slab cache,
   and also no longer fail to create the cache in that case (Hyeonggon
   Yoo)

 - Fix handling of detected consistency problems (due to buggy slab
   user) with slub_debug enabled, so that it does not cause further list
   corruption bugs (yuan.gao)

 - Code cleanup and kerneldocs polishing (Zhen Lei, Vlastimil Babka)

* tag 'slab-for-6.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  slab: Fix too strict alignment check in create_cache()
  mm/slab: Allow cache creation to proceed even if sysfs registration fails
  mm/slub: Avoid list corruption when removing a slab from the full list
  mm/slub, kunit: Add testcase for krealloc redzone and zeroing
  mm/slub: Improve redzone check and zeroing for krealloc()
  mm/slub: Consider kfence case for get_orig_size()
  SLUB: Add support for per object memory policies
  mm, slab: add kerneldocs for common SLAB_ flags
  mm/slab: remove duplicate check in create_cache()
  mm/slub: Move krealloc() and related code to slub.c
  mm/kasan: Don't store metadata inside kmalloc object when slub_debug_orig_size is on
2024-11-25 16:51:24 -08:00
Linus Torvalds
f5f4745a7f - The series "resource: A couple of cleanups" from Andy Shevchenko
performs some cleanups in the resource management code.
 
 - The series "Improve the copy of task comm" from Yafang Shao addresses
   possible race-induced overflows in the management of task_struct.comm[].
 
 - The series "Remove unnecessary header includes from
   {tools/}lib/list_sort.c" from Kuan-Wei Chiu adds some cleanups and a
   small fix to the list_sort library code and to its selftest.
 
 - The series "Enhance min heap API with non-inline functions and
   optimizations" also from Kuan-Wei Chiu optimizes and cleans up the
   min_heap library code.
 
 - The series "nilfs2: Finish folio conversion" from Ryusuke Konishi
   finishes off nilfs2's folioification.
 
 - The series "add detect count for hung tasks" from Lance Yang adds more
   userspace visibility into the hung-task detector's activity.
 
 - Apart from that, singelton patches in many places - please see the
   individual changelogs for details.
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Merge tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - The series "resource: A couple of cleanups" from Andy Shevchenko
   performs some cleanups in the resource management code

 - The series "Improve the copy of task comm" from Yafang Shao addresses
   possible race-induced overflows in the management of
   task_struct.comm[]

 - The series "Remove unnecessary header includes from
   {tools/}lib/list_sort.c" from Kuan-Wei Chiu adds some cleanups and a
   small fix to the list_sort library code and to its selftest

 - The series "Enhance min heap API with non-inline functions and
   optimizations" also from Kuan-Wei Chiu optimizes and cleans up the
   min_heap library code

 - The series "nilfs2: Finish folio conversion" from Ryusuke Konishi
   finishes off nilfs2's folioification

 - The series "add detect count for hung tasks" from Lance Yang adds
   more userspace visibility into the hung-task detector's activity

 - Apart from that, singelton patches in many places - please see the
   individual changelogs for details

* tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (71 commits)
  gdb: lx-symbols: do not error out on monolithic build
  kernel/reboot: replace sprintf() with sysfs_emit()
  lib: util_macros_kunit: add kunit test for util_macros.h
  util_macros.h: fix/rework find_closest() macros
  Improve consistency of '#error' directive messages
  ocfs2: fix uninitialized value in ocfs2_file_read_iter()
  hung_task: add docs for hung_task_detect_count
  hung_task: add detect count for hung tasks
  dma-buf: use atomic64_inc_return() in dma_buf_getfile()
  fs/proc/kcore.c: fix coccinelle reported ERROR instances
  resource: avoid unnecessary resource tree walking in __region_intersects()
  ocfs2: remove unused errmsg function and table
  ocfs2: cluster: fix a typo
  lib/scatterlist: use sg_phys() helper
  checkpatch: always parse orig_commit in fixes tag
  nilfs2: convert metadata aops from writepage to writepages
  nilfs2: convert nilfs_recovery_copy_block() to take a folio
  nilfs2: convert nilfs_page_count_clean_buffers() to take a folio
  nilfs2: remove nilfs_writepage
  nilfs2: convert checkpoint file to be folio-based
  ...
2024-11-25 16:09:48 -08:00
Bjorn Helgaas
f54ff407e6 Merge branch 'pci/controller/qcom'
- Enable MSI interrupts if 'global' IRQ is supported, since a previous
  commit unintentionally masked them (Manivannan Sadhasivam)

- Move endpoint controller cleanups that depend on refclk from the host to
  the notifier that tells us the host has deasserted PERST# (Manivannan
  Sadhasivam)

- Add DT binding and driver support for IPQ9574, with Synopsys IP v5.80a
  and Qcom IP 1.27.0 (devi priya)

- Move the OPP "operating-points-v2" table from the qcom,pcie-sm8450.yaml
  DT binding to qcom,pcie-common.yaml, where it can be used by other Qcom
  platforms (Qiang Yu)

- Add 'global' SPI interrupt for events like link-up, link-down to
  qcom,pcie-x1e80100 DT binding so we can start enumeration when the link
  comes up (Qiang Yu)

- Disable ASPM L0s for qcom,pcie-x1e80100 since the PHY is not tuned to
  support this (Qiang Yu)

- Add ops_1_21_0 for SC8280X family SoC, which doesn't use the 'iommu-map'
  DT property and doesn't need BDF-to-SID translation (Qiang Yu)

* pci/controller/qcom:
  PCI: qcom: Disable ASPM L0s for X1E80100
  PCI: qcom: Remove BDF2SID mapping config for SC8280X family SoC
  dt-bindings: PCI: qcom,pcie-x1e80100: Add 'global' interrupt
  dt-bindings: PCI: qcom: Move OPP table to qcom,pcie-common.yaml
  PCI: qcom: Add support for IPQ9574
  dt-bindings: PCI: qcom: Document the IPQ9574 PCIe controller
  PCI: qcom-ep: Move controller cleanups to qcom_pcie_perst_deassert()
  PCI: qcom: Enable MSI interrupts together with Link up if 'Global IRQ' is supported
2024-11-25 13:40:59 -06:00
Bjorn Helgaas
7b5d234e69 Merge branch 'pci/controller/microchip'
- Add DT and driver support for using either of the two PolarFire Root
  Ports (Conor Dooley)

* pci/controller/microchip:
  PCI: microchip: Add support for using either Root Port 1 or 2
  dt-bindings: PCI: microchip,pcie-host: Add reg for Root Port 2
2024-11-25 13:40:59 -06:00
Bjorn Helgaas
bd43348872 Merge branch 'pci/endpoint'
- Add pci_epc_function_is_valid() to avoid repeating common validation
  checks (Damien Le Moal)

- Skip attempts to allocate from endpoint controller memory window if the
  requested size is larger than the window (Damien Le Moal)

- Add and document pci_epc_mem_map() and pci_epc_mem_unmap() to handle
  controller-specific size and alignment constraints, and add test cases to
  the endpoint test driver (Damien Le Moal)

- Implement dwc pci_epc_ops.align_addr() so pci_epc_mem_map() can observe
  DWC-specific alignment requirements (Damien Le Moal)

- Synchronously cancel command handler work in endpoint test before
  cleaning up DMA and BARs (Damien Le Moal)

- Respect endpoint page size in dw_pcie_ep_align_addr() (Niklas Cassel)

- Use dw_pcie_ep_align_addr() in dw_pcie_ep_raise_msi_irq() and
  dw_pcie_ep_raise_msix_irq() instead of open coding the equivalent (Niklas
  Cassel)

- Remove superfluous 'return' from pci_epf_test_clean_dma_chan() (Wang
  Jiang)

- Avoid NULL dereference if Modem Host Interface Endpoint lacks 'mmio' DT
  property (Zhongqiu Han)

- Release PCI domain ID of Endpoint controller parent (not controller
  itself) and before unregistering the controller, to avoid use-after-free
  (Zijun Hu)

- Clear secondary (not primary) EPC in pci_epc_remove_epf() when removing
  the secondary controller associated with an NTB (Zijun Hu)

- Fix pci_epc_map map_size kerneldoc (Rick Wertenbroek)

* pci/endpoint:
  PCI: endpoint: Fix pci_epc_map map_size kerneldoc string
  PCI: endpoint: Clear secondary (not primary) EPC in pci_epc_remove_epf()
  PCI: endpoint: Fix PCI domain ID release in pci_epc_destroy()
  PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'
  PCI: endpoint: Remove surplus return statement from pci_epf_test_clean_dma_chan()
  PCI: dwc: ep: Use align addr function for dw_pcie_ep_raise_{msi,msix}_irq()
  PCI: endpoint: test: Synchronously cancel command handler work
  PCI: dwc: endpoint: Implement the pci_epc_ops::align_addr() operation
  PCI: endpoint: test: Use pci_epc_mem_map/unmap()
  PCI: endpoint: Update documentation
  PCI: endpoint: Introduce pci_epc_mem_map()/unmap()
  PCI: endpoint: Improve pci_epc_mem_alloc_addr()
  PCI: endpoint: Introduce pci_epc_function_is_valid()
2024-11-25 13:40:56 -06:00
Bjorn Helgaas
0683141812 Merge branch 'pci/dt-bindings'
- Update mediatek-gen3 DT binding to require the exact number of clocks for
  each SoC (Fei Shao)

- Add qcom SAR2130P DT binding with an additional clock (Dmitry Baryshkov)

* pci/dt-bindings:
  dt-bindings: PCI: snps,dw-pcie: Drop "#interrupt-cells" from example
  dt-bindings: PCI: qcom,pcie-sm8550: Add SAR2130P compatible
  dt-bindings: PCI: mediatek-gen3: Allow exact number of clocks only
2024-11-25 13:40:56 -06:00
Bjorn Helgaas
ab02bafcec Merge branch 'pci/tph'
- Add and document TLP Processing Hints (TPH) support so drivers can enable
  and disable TPH and the kernel can save/restore TPH configuration (Wei
  Huang)

- Add TPH Steering Tag support so drivers can retrieve Steering Tag values
  associated with specific CPUs via an ACPI _DSM to direct DMA writes
  closer to their consumers (Wei Huang)

* pci/tph:
  PCI/TPH: Add TPH documentation
  PCI/TPH: Add Steering Tag support
  PCI: Add TLP Processing Hints (TPH) support
2024-11-25 13:40:55 -06:00
Bjorn Helgaas
d985e2beb9 Merge branch 'pci/reset'
- Add sysfs 'reset_subordinate' to reset hierarchy below bridge (Keith
  Busch)

- Warn if we reset a running device where driver didn't register
  pci_error_handlers notification callbacks (Keith Busch)

* pci/reset:
  PCI: Warn if a running device is unaware of reset
  PCI: Add 'reset_subordinate' to reset hierarchy below bridge
2024-11-25 13:40:54 -06:00
Bjorn Helgaas
f326ce1693 Merge branch 'pci/devm'
- Export pcim_request_all_regions(), a managed interface to request all
  BARs (Philipp Stanner)

- Replace pcim_iomap_regions_request_all() with pcim_request_all_regions(),
  and pcim_iomap_table()[n] with pcim_iomap(n), in the following drivers:
  ahci, crypto qat, crypto octeontx2, intel_th, iwlwifi, ntb idt, serial
  rp2, ALSA korg1212 (Philipp Stanner)

- Remove the now unused pcim_iomap_regions_request_all() (Philipp Stanner)

- Export pcim_iounmap_region(), a managed interface to unmap and release a
  PCI BAR (Philipp Stanner)

- Replace pcim_iomap_regions(mask) with pcim_iomap_region(n), and
  pcim_iounmap_regions(mask) with pcim_iounmap_region(n), in the following
  drivers: fpga dfl-pci, block mtip32xx, gpio-merrifield, cavium (Philipp
  Stanner)

* pci/devm:
  ethernet: cavium: Replace deprecated PCI functions
  gpio: Replace deprecated PCI functions
  fpga/dfl-pci.c: Replace deprecated PCI functions
  PCI: Deprecate pcim_iounmap_regions()
  PCI: Make pcim_iounmap_region() a public function
  PCI: Remove pcim_iomap_regions_request_all()
  ALSA: korg1212: Replace deprecated PCI functions
  serial: rp2: Replace deprecated PCI functions
  ntb: idt: Replace deprecated PCI functions
  wifi: iwlwifi: replace deprecated PCI functions
  intel_th: pci: Replace deprecated PCI functions
  crypto: marvell - replace deprecated PCI functions
  crypto: qat - replace deprecated PCI functions
  ata: ahci: Replace deprecated PCI functions
  PCI: Make pcim_request_all_regions() a public function
2024-11-25 13:40:43 -06:00
Linus Torvalds
3e51108c72 Input updates for v6.13-rc0
- support for NT36672A touchscreen added to novatek-nvt-ts driver
 
 - a change to ads7846 driver to prevent XPT2046 from locking up
 
 - a change switching platform input dirves back to using remove() method
   (from remove_new())
 
 - updates to a number of input drivers to use the new cleanup facilities
   (__free(...), guard(), and scoped-guard()) which ensure that the
   resources and locks are released properly and automatically
 
 - other assorted driver cleanups and fixes.
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Merge tag 'input-for-v6.13-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:

 - support for NT36672A touchscreen added to novatek-nvt-ts driver

 - a change to ads7846 driver to prevent XPT2046 from locking up

 - a change switching platform input dirves back to using remove()
   method (from remove_new())

 - updates to a number of input drivers to use the new cleanup
   facilities (__free(...), guard(), and scoped-guard()) which ensure
   that the resources and locks are released properly and automatically

 - other assorted driver cleanups and fixes.

* tag 'input-for-v6.13-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (109 commits)
  Input: mpr121 - use devm_regulator_get_enable_read_voltage()
  Input: sun4i-lradc-keys - don't include 'pm_wakeup.h' directly
  Input: spear-keyboard - don't include 'pm_wakeup.h' directly
  Input: cypress-sf - constify struct i2c_device_id
  Input: ads7846 - increase xfer array size in 'struct ser_req'
  Input: fix the input_event struct documentation
  Input: i8042 - fix typo dublicate to duplicate
  Input: ads7846 - add dummy command register clearing cycle
  Input: cs40l50 - fix wrong usage of INIT_WORK()
  Input: introduce notion of passive observers for input handlers
  Input: maple_keyb - use guard notation when acquiring mutex
  Input: locomokbd - use guard notation when acquiring spinlock
  Input: hilkbd - use guard notation when acquiring spinlock
  Input: synaptics-rmi4 - switch to using cleanup functions in F34
  Input: synaptics - fix a typo
  dt-bindings: input: rotary-encoder: Fix "rotary-encoder,rollover" type
  Input: omap-keypad - use guard notation when acquiring mutex
  Input: imagis - fix warning regarding 'imagis_3038_data' being unused
  Input: userio - remove unneeded semicolon
  Input: sparcspkr - use cleanup facility for device_node
  ...
2024-11-25 10:31:39 -08:00
Miguel Ojeda
b160dc46dd docs: rust: remove spurious item in expect list
This list started as a "when to prefer `expect`" list, but at some point
during writing I changed it to a "prefer `expect` unless..." one. However,
the first bullet remained, which does not make sense anymore.

Thus remove it. In addition, fix nearby typo.

Fixes: 04866494e9 ("Documentation: rust: discuss `#[expect(...)]` in the guidelines")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Link: https://lore.kernel.org/r/20241117133127.473937-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-11-25 00:10:29 +01:00
Michal Wilczynski
b2cf36e4a2 dt-bindings: mailbox: Add thead,th1520-mailbox bindings
Add bindings for the mailbox controller. This work is based on the vendor
kernel. [1]

Link: https://github.com/revyos/thead-kernel.git [1]

Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2024-11-24 13:06:42 -06:00
Krzysztof Kozlowski
f8809b1f48 dt-bindings: mailbox: qcom-ipcc: Add SM8750
Document compatible for Qualcomm SM8750 SoC IPCC, compatible with
existing generic fallback.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2024-11-24 13:01:27 -06:00
Krzysztof Kozlowski
cba781d79d dt-bindings: mailbox: qcom,apcs-kpss-global: correct expected clocks for fallbacks
Commit 1e9cb7e007 ("dt-bindings: mailbox: qcom,apcs-kpss-global: use
fallbacks") and commit 34d8775a0e ("dt-bindings: mailbox:
qcom,apcs-kpss-global: use fallbacks for few variants") added fallbacks
to few existing compatibles.  Neither devices with these existing
compatibles nor devices using fallbacks alone, have clocks, so the
"if:then:" block defining this constrain should be written as
"contains:".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2024-11-24 13:00:33 -06:00
Dmitry Baryshkov
71987bc922 dt-bindings: mailbox: qcom-ipcc: Add SAR2130P compatible
Document compatible for the IPCC mailbox controller on SAR2130P platform.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2024-11-24 12:59:48 -06:00
Conor Dooley
8edd00b06f dt-bindings: mailbox: mpfs: fix reg properties
When the binding for this was originally written, and later modified,
mistakes were made - and the precise nature of the later modification
should have been a giveaway, but alas I was naive at the time.

A more correct modelling of the hardware is to use two syscons and have
a single reg entry for the mailbox, containing the mailbox region. The
two syscons contain the general control/status registers for the mailbox
and the interrupt related registers respectively. The reason for two
syscons is that the same mailbox is present on the non-SoC version of
the FPGA, which has no interrupt controller, and the shared part of the
rtl was unchanged between devices.

This is now coming to a head, because the control/status registers share
a register region with the "tvs" (temperature & voltage sensors)
registers and, as it turns out, people do want to monitor temperatures
and voltages...

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2024-11-24 12:53:34 -06:00
Michael Wu
bbc89a6e83 dt-bindings: i2c: snps,designware-i2c: declare bus capacitance and clk freq optimized
Since there are no registers controlling the hardware parameters
IC_CAP_LOADING and IC_CLK_FREQ_OPTIMIZATION, their values can only be
declared in the device tree.

snps,bus-capacitance-pf indicates the bus capacitance in picofarads (pF).
It affects the high and low pulse width of SCL line in high speed mode.
The legal values for this property are 100 and 400 only, and default
value is 100. This property corresponds to IC_CAP_LOADING.

snps,clk-freq-optimized indicates whether the hardware reduce its
internal clock frequency by reducing the internal latency required to
generate the high period and low period of SCL line. This property
corresponds to IC_CLK_FREQ_OPTIMIZATION.

The driver can calculate the high period count and low period count of
SCL line for high speed mode based on these two properties.

Signed-off-by: Michael Wu <michael.wu@kneron.us>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2024-11-24 16:03:51 +01:00
Théo Lebrun
54202106c0 dt-bindings: i2c: nomadik: support 400kHz < clock-frequency <= 3.4MHz
Hardware is not limited to 400kHz, its documentation does mention how to
configure it for high-speed (a specific Speed-Mode enum value and
a different bus rate clock divider register to be used).

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2024-11-24 16:03:51 +01:00
Théo Lebrun
2eec351eed dt-bindings: i2c: nomadik: add mobileye,eyeq6h-i2c bindings
After EyeQ5, it is time for Mobileye EyeQ6H to reuse the Nomadik I2C
controller. Add a specific compatible because its HW integration is
slightly different from EyeQ5.

Do NOT add an example as it looks like EyeQ5 from a DT standpoint
(without the mobileye,olb property).

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2024-11-24 16:03:51 +01:00
Andre Przywara
efdc7828b7 dt-bindings: i2c: mv64xxx: Add Allwinner A523 compatible string
The I2C controller IP used in the Allwinner A523/T527 SoCs is
compatible with the ones used in the other recent Allwinner SoCs.

Add the A523 specific compatible string to the list of existing names
falling back to the allwinner,sun8i-v536-i2c string.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2024-11-24 16:03:50 +01:00
Linus Torvalds
9f16d5e6f2 The biggest change here is eliminating the awful idea that KVM had, of
essentially guessing which pfns are refcounted pages.  The reason to
 do so was that KVM needs to map both non-refcounted pages (for example
 BARs of VFIO devices) and VM_PFNMAP/VM_MIXMEDMAP VMAs that contain
 refcounted pages.  However, the result was security issues in the past,
 and more recently the inability to map VM_IO and VM_PFNMAP memory
 that _is_ backed by struct page but is not refcounted.  In particular
 this broke virtio-gpu blob resources (which directly map host graphics
 buffers into the guest as "vram" for the virtio-gpu device) with the
 amdgpu driver, because amdgpu allocates non-compound higher order pages
 and the tail pages could not be mapped into KVM.
 
 This requires adjusting all uses of struct page in the per-architecture
 code, to always work on the pfn whenever possible.  The large series that
 did this, from David Stevens and Sean Christopherson, also cleaned up
 substantially the set of functions that provided arch code with the
 pfn for a host virtual addresses.  The previous maze of twisty little
 passages, all different, is replaced by five functions (__gfn_to_page,
 __kvm_faultin_pfn, the non-__ versions of these two, and kvm_prefetch_pages)
 saving almost 200 lines of code.
 
 ARM:
 
 * Support for stage-1 permission indirection (FEAT_S1PIE) and
   permission overlays (FEAT_S1POE), including nested virt + the
   emulated page table walker
 
 * Introduce PSCI SYSTEM_OFF2 support to KVM + client driver. This call
   was introduced in PSCIv1.3 as a mechanism to request hibernation,
   similar to the S4 state in ACPI
 
 * Explicitly trap + hide FEAT_MPAM (QoS controls) from KVM guests. As
   part of it, introduce trivial initialization of the host's MPAM
   context so KVM can use the corresponding traps
 
 * PMU support under nested virtualization, honoring the guest
   hypervisor's trap configuration and event filtering when running a
   nested guest
 
 * Fixes to vgic ITS serialization where stale device/interrupt table
   entries are not zeroed when the mapping is invalidated by the VM
 
 * Avoid emulated MMIO completion if userspace has requested synchronous
   external abort injection
 
 * Various fixes and cleanups affecting pKVM, vCPU initialization, and
   selftests
 
 LoongArch:
 
 * Add iocsr and mmio bus simulation in kernel.
 
 * Add in-kernel interrupt controller emulation.
 
 * Add support for virtualization extensions to the eiointc irqchip.
 
 PPC:
 
 * Drop lingering and utterly obsolete references to PPC970 KVM, which was
   removed 10 years ago.
 
 * Fix incorrect documentation references to non-existing ioctls
 
 RISC-V:
 
 * Accelerate KVM RISC-V when running as a guest
 
 * Perf support to collect KVM guest statistics from host side
 
 s390:
 
 * New selftests: more ucontrol selftests and CPU model sanity checks
 
 * Support for the gen17 CPU model
 
 * List registers supported by KVM_GET/SET_ONE_REG in the documentation
 
 x86:
 
 * Cleanup KVM's handling of Accessed and Dirty bits to dedup code, improve
   documentation, harden against unexpected changes.  Even if the hardware
   A/D tracking is disabled, it is possible to use the hardware-defined A/D
   bits to track if a PFN is Accessed and/or Dirty, and that removes a lot
   of special cases.
 
 * Elide TLB flushes when aging secondary PTEs, as has been done in x86's
   primary MMU for over 10 years.
 
 * Recover huge pages in-place in the TDP MMU when dirty page logging is
   toggled off, instead of zapping them and waiting until the page is
   re-accessed to create a huge mapping.  This reduces vCPU jitter.
 
 * Batch TLB flushes when dirty page logging is toggled off.  This reduces
   the time it takes to disable dirty logging by ~3x.
 
 * Remove the shrinker that was (poorly) attempting to reclaim shadow page
   tables in low-memory situations.
 
 * Clean up and optimize KVM's handling of writes to MSR_IA32_APICBASE.
 
 * Advertise CPUIDs for new instructions in Clearwater Forest
 
 * Quirk KVM's misguided behavior of initialized certain feature MSRs to
   their maximum supported feature set, which can result in KVM creating
   invalid vCPU state.  E.g. initializing PERF_CAPABILITIES to a non-zero
   value results in the vCPU having invalid state if userspace hides PDCM
   from the guest, which in turn can lead to save/restore failures.
 
 * Fix KVM's handling of non-canonical checks for vCPUs that support LA57
   to better follow the "architecture", in quotes because the actual
   behavior is poorly documented.  E.g. most MSR writes and descriptor
   table loads ignore CR4.LA57 and operate purely on whether the CPU
   supports LA57.
 
 * Bypass the register cache when querying CPL from kvm_sched_out(), as
   filling the cache from IRQ context is generally unsafe; harden the
   cache accessors to try to prevent similar issues from occuring in the
   future.  The issue that triggered this change was already fixed in 6.12,
   but was still kinda latent.
 
 * Advertise AMD_IBPB_RET to userspace, and fix a related bug where KVM
   over-advertises SPEC_CTRL when trying to support cross-vendor VMs.
 
 * Minor cleanups
 
 * Switch hugepage recovery thread to use vhost_task.  These kthreads can
   consume significant amounts of CPU time on behalf of a VM or in response
   to how the VM behaves (for example how it accesses its memory); therefore
   KVM tried to place the thread in the VM's cgroups and charge the CPU
   time consumed by that work to the VM's container.  However the kthreads
   did not process SIGSTOP/SIGCONT, and therefore cgroups which had KVM
   instances inside could not complete freezing.  Fix this by replacing the
   kthread with a PF_USER_WORKER thread, via the vhost_task abstraction.
   Another 100+ lines removed, with generally better behavior too like
   having these threads properly parented in the process tree.
 
 * Revert a workaround for an old CPU erratum (Nehalem/Westmere) that didn't
   really work; there was really nothing to work around anyway: the broken
   patch was meant to fix nested virtualization, but the PERF_GLOBAL_CTRL
   MSR is virtualized and therefore unaffected by the erratum.
 
 * Fix 6.12 regression where CONFIG_KVM will be built as a module even
   if asked to be builtin, as long as neither KVM_INTEL nor KVM_AMD is 'y'.
 
 x86 selftests:
 
 * x86 selftests can now use AVX.
 
 Documentation:
 
 * Use rST internal links
 
 * Reorganize the introduction to the API document
 
 Generic:
 
 * Protect vcpu->pid accesses outside of vcpu->mutex with a rwlock instead
   of RCU, so that running a vCPU on a different task doesn't encounter long
   due to having to wait for all CPUs become quiescent.  In general both reads
   and writes are rare, but userspace that supports confidential computing is
   introducing the use of "helper" vCPUs that may jump from one host processor
   to another.  Those will be very happy to trigger a synchronize_rcu(), and
   the effect on performance is quite the disaster.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "The biggest change here is eliminating the awful idea that KVM had of
  essentially guessing which pfns are refcounted pages.

  The reason to do so was that KVM needs to map both non-refcounted
  pages (for example BARs of VFIO devices) and VM_PFNMAP/VM_MIXMEDMAP
  VMAs that contain refcounted pages.

  However, the result was security issues in the past, and more recently
  the inability to map VM_IO and VM_PFNMAP memory that _is_ backed by
  struct page but is not refcounted. In particular this broke virtio-gpu
  blob resources (which directly map host graphics buffers into the
  guest as "vram" for the virtio-gpu device) with the amdgpu driver,
  because amdgpu allocates non-compound higher order pages and the tail
  pages could not be mapped into KVM.

  This requires adjusting all uses of struct page in the
  per-architecture code, to always work on the pfn whenever possible.
  The large series that did this, from David Stevens and Sean
  Christopherson, also cleaned up substantially the set of functions
  that provided arch code with the pfn for a host virtual addresses.

  The previous maze of twisty little passages, all different, is
  replaced by five functions (__gfn_to_page, __kvm_faultin_pfn, the
  non-__ versions of these two, and kvm_prefetch_pages) saving almost
  200 lines of code.

  ARM:

   - Support for stage-1 permission indirection (FEAT_S1PIE) and
     permission overlays (FEAT_S1POE), including nested virt + the
     emulated page table walker

   - Introduce PSCI SYSTEM_OFF2 support to KVM + client driver. This
     call was introduced in PSCIv1.3 as a mechanism to request
     hibernation, similar to the S4 state in ACPI

   - Explicitly trap + hide FEAT_MPAM (QoS controls) from KVM guests. As
     part of it, introduce trivial initialization of the host's MPAM
     context so KVM can use the corresponding traps

   - PMU support under nested virtualization, honoring the guest
     hypervisor's trap configuration and event filtering when running a
     nested guest

   - Fixes to vgic ITS serialization where stale device/interrupt table
     entries are not zeroed when the mapping is invalidated by the VM

   - Avoid emulated MMIO completion if userspace has requested
     synchronous external abort injection

   - Various fixes and cleanups affecting pKVM, vCPU initialization, and
     selftests

  LoongArch:

   - Add iocsr and mmio bus simulation in kernel.

   - Add in-kernel interrupt controller emulation.

   - Add support for virtualization extensions to the eiointc irqchip.

  PPC:

   - Drop lingering and utterly obsolete references to PPC970 KVM, which
     was removed 10 years ago.

   - Fix incorrect documentation references to non-existing ioctls

  RISC-V:

   - Accelerate KVM RISC-V when running as a guest

   - Perf support to collect KVM guest statistics from host side

  s390:

   - New selftests: more ucontrol selftests and CPU model sanity checks

   - Support for the gen17 CPU model

   - List registers supported by KVM_GET/SET_ONE_REG in the
     documentation

  x86:

   - Cleanup KVM's handling of Accessed and Dirty bits to dedup code,
     improve documentation, harden against unexpected changes.

     Even if the hardware A/D tracking is disabled, it is possible to
     use the hardware-defined A/D bits to track if a PFN is Accessed
     and/or Dirty, and that removes a lot of special cases.

   - Elide TLB flushes when aging secondary PTEs, as has been done in
     x86's primary MMU for over 10 years.

   - Recover huge pages in-place in the TDP MMU when dirty page logging
     is toggled off, instead of zapping them and waiting until the page
     is re-accessed to create a huge mapping. This reduces vCPU jitter.

   - Batch TLB flushes when dirty page logging is toggled off. This
     reduces the time it takes to disable dirty logging by ~3x.

   - Remove the shrinker that was (poorly) attempting to reclaim shadow
     page tables in low-memory situations.

   - Clean up and optimize KVM's handling of writes to
     MSR_IA32_APICBASE.

   - Advertise CPUIDs for new instructions in Clearwater Forest

   - Quirk KVM's misguided behavior of initialized certain feature MSRs
     to their maximum supported feature set, which can result in KVM
     creating invalid vCPU state. E.g. initializing PERF_CAPABILITIES to
     a non-zero value results in the vCPU having invalid state if
     userspace hides PDCM from the guest, which in turn can lead to
     save/restore failures.

   - Fix KVM's handling of non-canonical checks for vCPUs that support
     LA57 to better follow the "architecture", in quotes because the
     actual behavior is poorly documented. E.g. most MSR writes and
     descriptor table loads ignore CR4.LA57 and operate purely on
     whether the CPU supports LA57.

   - Bypass the register cache when querying CPL from kvm_sched_out(),
     as filling the cache from IRQ context is generally unsafe; harden
     the cache accessors to try to prevent similar issues from occuring
     in the future. The issue that triggered this change was already
     fixed in 6.12, but was still kinda latent.

   - Advertise AMD_IBPB_RET to userspace, and fix a related bug where
     KVM over-advertises SPEC_CTRL when trying to support cross-vendor
     VMs.

   - Minor cleanups

   - Switch hugepage recovery thread to use vhost_task.

     These kthreads can consume significant amounts of CPU time on
     behalf of a VM or in response to how the VM behaves (for example
     how it accesses its memory); therefore KVM tried to place the
     thread in the VM's cgroups and charge the CPU time consumed by that
     work to the VM's container.

     However the kthreads did not process SIGSTOP/SIGCONT, and therefore
     cgroups which had KVM instances inside could not complete freezing.

     Fix this by replacing the kthread with a PF_USER_WORKER thread, via
     the vhost_task abstraction. Another 100+ lines removed, with
     generally better behavior too like having these threads properly
     parented in the process tree.

   - Revert a workaround for an old CPU erratum (Nehalem/Westmere) that
     didn't really work; there was really nothing to work around anyway:
     the broken patch was meant to fix nested virtualization, but the
     PERF_GLOBAL_CTRL MSR is virtualized and therefore unaffected by the
     erratum.

   - Fix 6.12 regression where CONFIG_KVM will be built as a module even
     if asked to be builtin, as long as neither KVM_INTEL nor KVM_AMD is
     'y'.

  x86 selftests:

   - x86 selftests can now use AVX.

  Documentation:

   - Use rST internal links

   - Reorganize the introduction to the API document

  Generic:

   - Protect vcpu->pid accesses outside of vcpu->mutex with a rwlock
     instead of RCU, so that running a vCPU on a different task doesn't
     encounter long due to having to wait for all CPUs become quiescent.

     In general both reads and writes are rare, but userspace that
     supports confidential computing is introducing the use of "helper"
     vCPUs that may jump from one host processor to another. Those will
     be very happy to trigger a synchronize_rcu(), and the effect on
     performance is quite the disaster"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (298 commits)
  KVM: x86: Break CONFIG_KVM_X86's direct dependency on KVM_INTEL || KVM_AMD
  KVM: x86: add back X86_LOCAL_APIC dependency
  Revert "KVM: VMX: Move LOAD_IA32_PERF_GLOBAL_CTRL errata handling out of setup_vmcs_config()"
  KVM: x86: switch hugepage recovery thread to vhost_task
  KVM: x86: expose MSR_PLATFORM_INFO as a feature MSR
  x86: KVM: Advertise CPUIDs for new instructions in Clearwater Forest
  Documentation: KVM: fix malformed table
  irqchip/loongson-eiointc: Add virt extension support
  LoongArch: KVM: Add irqfd support
  LoongArch: KVM: Add PCHPIC user mode read and write functions
  LoongArch: KVM: Add PCHPIC read and write functions
  LoongArch: KVM: Add PCHPIC device support
  LoongArch: KVM: Add EIOINTC user mode read and write functions
  LoongArch: KVM: Add EIOINTC read and write functions
  LoongArch: KVM: Add EIOINTC device support
  LoongArch: KVM: Add IPI user mode read and write function
  LoongArch: KVM: Add IPI read and write function
  LoongArch: KVM: Add IPI device support
  LoongArch: KVM: Add iocsr and mmio bus simulation in kernel
  KVM: arm64: Pass on SVE mapping failures
  ...
2024-11-23 16:00:50 -08:00
Linus Torvalds
42d9e8b7cc powerpc updates for 6.13
- Rework kfence support for the HPT MMU to work on systems with >= 16TB of RAM.
 
  - Remove the powerpc "maple" platform, used by the "Yellow Dog Powerstation".
 
  - Add support for DYNAMIC_FTRACE_WITH_CALL_OPS,
    DYNAMIC_FTRACE_WITH_DIRECT_CALLS & BPF Trampolines.
 
  - Add support for running KVM nested guests on Power11.
 
  - Other small features, cleanups and fixes.
 
 Thanks to: Amit Machhiwal, Arnd Bergmann, Christophe Leroy, Costa Shulyupin,
 David Hunter, David Wang, Disha Goel, Gautam Menghani, Geert Uytterhoeven,
 Hari Bathini, Julia Lawall, Kajol Jain, Keith Packard, Lukas Bulwahn, Madhavan
 Srinivasan, Markus Elfring, Michal Suchanek, Ming Lei, Mukesh Kumar Chaurasiya,
 Nathan Chancellor, Naveen N Rao, Nicholas Piggin, Nysal Jan K.A, Paulo Miguel
 Almeida, Pavithra Prakash, Ritesh Harjani (IBM), Rob Herring (Arm), Sachin P
 Bappalige, Shen Lichuan, Simon Horman, Sourabh Jain, Thomas Weißschuh, Thorsten
 Blum, Thorsten Leemhuis, Venkat Rao Bagalkote, Zhang Zekun,
 zhang jiao.
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Merge tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Rework kfence support for the HPT MMU to work on systems with >= 16TB
   of RAM.

 - Remove the powerpc "maple" platform, used by the "Yellow Dog
   Powerstation".

 - Add support for DYNAMIC_FTRACE_WITH_CALL_OPS,
   DYNAMIC_FTRACE_WITH_DIRECT_CALLS & BPF Trampolines.

 - Add support for running KVM nested guests on Power11.

 - Other small features, cleanups and fixes.

Thanks to Amit Machhiwal, Arnd Bergmann, Christophe Leroy, Costa
Shulyupin, David Hunter, David Wang, Disha Goel, Gautam Menghani, Geert
Uytterhoeven, Hari Bathini, Julia Lawall, Kajol Jain, Keith Packard,
Lukas Bulwahn, Madhavan Srinivasan, Markus Elfring, Michal Suchanek,
Ming Lei, Mukesh Kumar Chaurasiya, Nathan Chancellor, Naveen N Rao,
Nicholas Piggin, Nysal Jan K.A, Paulo Miguel Almeida, Pavithra Prakash,
Ritesh Harjani (IBM), Rob Herring (Arm), Sachin P Bappalige, Shen
Lichuan, Simon Horman, Sourabh Jain, Thomas Weißschuh, Thorsten Blum,
Thorsten Leemhuis, Venkat Rao Bagalkote, Zhang Zekun, and zhang jiao.

* tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (89 commits)
  EDAC/powerpc: Remove PPC_MAPLE drivers
  powerpc/perf: Add per-task/process monitoring to vpa_pmu driver
  powerpc/kvm: Add vpa latency counters to kvm_vcpu_arch
  docs: ABI: sysfs-bus-event_source-devices-vpa-pmu: Document sysfs event format entries for vpa_pmu
  powerpc/perf: Add perf interface to expose vpa counters
  MAINTAINERS: powerpc: Mark Maddy as "M"
  powerpc/Makefile: Allow overriding CPP
  powerpc-km82xx.c: replace of_node_put() with __free
  ps3: Correct some typos in comments
  powerpc/kexec: Fix return of uninitialized variable
  macintosh: Use common error handling code in via_pmu_led_init()
  powerpc/powermac: Use of_property_match_string() in pmac_has_backlight_type()
  powerpc: remove dead config options for MPC85xx platform support
  powerpc/xive: Use cpumask_intersects()
  selftests/powerpc: Remove the path after initialization.
  powerpc/xmon: symbol lookup length fixed
  powerpc/ep8248e: Use %pa to format resource_size_t
  powerpc/ps3: Reorganize kerneldoc parameter names
  KVM: PPC: Book3S HV: Fix kmv -> kvm typo
  powerpc/sstep: make emulate_vsx_load and emulate_vsx_store static
  ...
2024-11-23 10:44:31 -08:00
Linus Torvalds
5c00ff742b - The series "zram: optimal post-processing target selection" from
Sergey Senozhatsky improves zram's post-processing selection algorithm.
   This leads to improved memory savings.
 
 - Wei Yang has gone to town on the mapletree code, contributing several
   series which clean up the implementation:
 
 	- "refine mas_mab_cp()"
 	- "Reduce the space to be cleared for maple_big_node"
 	- "maple_tree: simplify mas_push_node()"
 	- "Following cleanup after introduce mas_wr_store_type()"
 	- "refine storing null"
 
 - The series "selftests/mm: hugetlb_fault_after_madv improvements" from
   David Hildenbrand fixes this selftest for s390.
 
 - The series "introduce pte_offset_map_{ro|rw}_nolock()" from Qi Zheng
   implements some rationaizations and cleanups in the page mapping code.
 
 - The series "mm: optimize shadow entries removal" from Shakeel Butt
   optimizes the file truncation code by speeding up the handling of shadow
   entries.
 
 - The series "Remove PageKsm()" from Matthew Wilcox completes the
   migration of this flag over to being a folio-based flag.
 
 - The series "Unify hugetlb into arch_get_unmapped_area functions" from
   Oscar Salvador implements a bunch of consolidations and cleanups in the
   hugetlb code.
 
 - The series "Do not shatter hugezeropage on wp-fault" from Dev Jain
   takes away the wp-fault time practice of turning a huge zero page into
   small pages.  Instead we replace the whole thing with a THP.  More
   consistent cleaner and potentiall saves a large number of pagefaults.
 
 - The series "percpu: Add a test case and fix for clang" from Andy
   Shevchenko enhances and fixes the kernel's built in percpu test code.
 
 - The series "mm/mremap: Remove extra vma tree walk" from Liam Howlett
   optimizes mremap() by avoiding doing things which we didn't need to do.
 
 - The series "Improve the tmpfs large folio read performance" from
   Baolin Wang teaches tmpfs to copy data into userspace at the folio size
   rather than as individual pages.  A 20% speedup was observed.
 
 - The series "mm/damon/vaddr: Fix issue in
   damon_va_evenly_split_region()" fro Zheng Yejian fixes DAMON splitting.
 
 - The series "memcg-v1: fully deprecate charge moving" from Shakeel Butt
   removes the long-deprecated memcgv2 charge moving feature.
 
 - The series "fix error handling in mmap_region() and refactor" from
   Lorenzo Stoakes cleanup up some of the mmap() error handling and
   addresses some potential performance issues.
 
 - The series "x86/module: use large ROX pages for text allocations" from
   Mike Rapoport teaches x86 to use large pages for read-only-execute
   module text.
 
 - The series "page allocation tag compression" from Suren Baghdasaryan
   is followon maintenance work for the new page allocation profiling
   feature.
 
 - The series "page->index removals in mm" from Matthew Wilcox remove
   most references to page->index in mm/.  A slow march towards shrinking
   struct page.
 
 - The series "damon/{self,kunit}tests: minor fixups for DAMON debugfs
   interface tests" from Andrew Paniakin performs maintenance work for
   DAMON's self testing code.
 
 - The series "mm: zswap swap-out of large folios" from Kanchana Sridhar
   improves zswap's batching of compression and decompression.  It is a
   step along the way towards using Intel IAA hardware acceleration for
   this zswap operation.
 
 - The series "kasan: migrate the last module test to kunit" from
   Sabyrzhan Tasbolatov completes the migration of the KASAN built-in tests
   over to the KUnit framework.
 
 - The series "implement lightweight guard pages" from Lorenzo Stoakes
   permits userapace to place fault-generating guard pages within a single
   VMA, rather than requiring that multiple VMAs be created for this.
   Improved efficiencies for userspace memory allocators are expected.
 
 - The series "memcg: tracepoint for flushing stats" from JP Kobryn uses
   tracepoints to provide increased visibility into memcg stats flushing
   activity.
 
 - The series "zram: IDLE flag handling fixes" from Sergey Senozhatsky
   fixes a zram buglet which potentially affected performance.
 
 - The series "mm: add more kernel parameters to control mTHP" from
   Maíra Canal enhances our ability to control/configuremultisize THP from
   the kernel boot command line.
 
 - The series "kasan: few improvements on kunit tests" from Sabyrzhan
   Tasbolatov has a couple of fixups for the KASAN KUnit tests.
 
 - The series "mm/list_lru: Split list_lru lock into per-cgroup scope"
   from Kairui Song optimizes list_lru memory utilization when lockdep is
   enabled.
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Merge tag 'mm-stable-2024-11-18-19-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - The series "zram: optimal post-processing target selection" from
   Sergey Senozhatsky improves zram's post-processing selection
   algorithm. This leads to improved memory savings.

 - Wei Yang has gone to town on the mapletree code, contributing several
   series which clean up the implementation:
	- "refine mas_mab_cp()"
	- "Reduce the space to be cleared for maple_big_node"
	- "maple_tree: simplify mas_push_node()"
	- "Following cleanup after introduce mas_wr_store_type()"
	- "refine storing null"

 - The series "selftests/mm: hugetlb_fault_after_madv improvements" from
   David Hildenbrand fixes this selftest for s390.

 - The series "introduce pte_offset_map_{ro|rw}_nolock()" from Qi Zheng
   implements some rationaizations and cleanups in the page mapping
   code.

 - The series "mm: optimize shadow entries removal" from Shakeel Butt
   optimizes the file truncation code by speeding up the handling of
   shadow entries.

 - The series "Remove PageKsm()" from Matthew Wilcox completes the
   migration of this flag over to being a folio-based flag.

 - The series "Unify hugetlb into arch_get_unmapped_area functions" from
   Oscar Salvador implements a bunch of consolidations and cleanups in
   the hugetlb code.

 - The series "Do not shatter hugezeropage on wp-fault" from Dev Jain
   takes away the wp-fault time practice of turning a huge zero page
   into small pages. Instead we replace the whole thing with a THP. More
   consistent cleaner and potentiall saves a large number of pagefaults.

 - The series "percpu: Add a test case and fix for clang" from Andy
   Shevchenko enhances and fixes the kernel's built in percpu test code.

 - The series "mm/mremap: Remove extra vma tree walk" from Liam Howlett
   optimizes mremap() by avoiding doing things which we didn't need to
   do.

 - The series "Improve the tmpfs large folio read performance" from
   Baolin Wang teaches tmpfs to copy data into userspace at the folio
   size rather than as individual pages. A 20% speedup was observed.

 - The series "mm/damon/vaddr: Fix issue in
   damon_va_evenly_split_region()" fro Zheng Yejian fixes DAMON
   splitting.

 - The series "memcg-v1: fully deprecate charge moving" from Shakeel
   Butt removes the long-deprecated memcgv2 charge moving feature.

 - The series "fix error handling in mmap_region() and refactor" from
   Lorenzo Stoakes cleanup up some of the mmap() error handling and
   addresses some potential performance issues.

 - The series "x86/module: use large ROX pages for text allocations"
   from Mike Rapoport teaches x86 to use large pages for
   read-only-execute module text.

 - The series "page allocation tag compression" from Suren Baghdasaryan
   is followon maintenance work for the new page allocation profiling
   feature.

 - The series "page->index removals in mm" from Matthew Wilcox remove
   most references to page->index in mm/. A slow march towards shrinking
   struct page.

 - The series "damon/{self,kunit}tests: minor fixups for DAMON debugfs
   interface tests" from Andrew Paniakin performs maintenance work for
   DAMON's self testing code.

 - The series "mm: zswap swap-out of large folios" from Kanchana Sridhar
   improves zswap's batching of compression and decompression. It is a
   step along the way towards using Intel IAA hardware acceleration for
   this zswap operation.

 - The series "kasan: migrate the last module test to kunit" from
   Sabyrzhan Tasbolatov completes the migration of the KASAN built-in
   tests over to the KUnit framework.

 - The series "implement lightweight guard pages" from Lorenzo Stoakes
   permits userapace to place fault-generating guard pages within a
   single VMA, rather than requiring that multiple VMAs be created for
   this. Improved efficiencies for userspace memory allocators are
   expected.

 - The series "memcg: tracepoint for flushing stats" from JP Kobryn uses
   tracepoints to provide increased visibility into memcg stats flushing
   activity.

 - The series "zram: IDLE flag handling fixes" from Sergey Senozhatsky
   fixes a zram buglet which potentially affected performance.

 - The series "mm: add more kernel parameters to control mTHP" from
   Maíra Canal enhances our ability to control/configuremultisize THP
   from the kernel boot command line.

 - The series "kasan: few improvements on kunit tests" from Sabyrzhan
   Tasbolatov has a couple of fixups for the KASAN KUnit tests.

 - The series "mm/list_lru: Split list_lru lock into per-cgroup scope"
   from Kairui Song optimizes list_lru memory utilization when lockdep
   is enabled.

* tag 'mm-stable-2024-11-18-19-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (215 commits)
  cma: enforce non-zero pageblock_order during cma_init_reserved_mem()
  mm/kfence: add a new kunit test test_use_after_free_read_nofault()
  zram: fix NULL pointer in comp_algorithm_show()
  memcg/hugetlb: add hugeTLB counters to memcg
  vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event
  mm: mmap_lock: check trace_mmap_lock_$type_enabled() instead of regcount
  zram: ZRAM_DEF_COMP should depend on ZRAM
  MAINTAINERS/MEMORY MANAGEMENT: add document files for mm
  Docs/mm/damon: recommend academic papers to read and/or cite
  mm: define general function pXd_init()
  kmemleak: iommu/iova: fix transient kmemleak false positive
  mm/list_lru: simplify the list_lru walk callback function
  mm/list_lru: split the lock to per-cgroup scope
  mm/list_lru: simplify reparenting and initial allocation
  mm/list_lru: code clean up for reparenting
  mm/list_lru: don't export list_lru_add
  mm/list_lru: don't pass unnecessary key parameters
  kasan: add kunit tests for kmalloc_track_caller, kmalloc_node_track_caller
  kasan: change kasan_atomics kunit test as KUNIT_CASE_SLOW
  kasan: use EXPORT_SYMBOL_IF_KUNIT to export symbols
  ...
2024-11-23 09:58:07 -08:00
Chao Yu
009a8241a8 f2fs: add a sysfs node to limit max read extent count per-inode
Quoted:
"at this time, there are still 1086911 extent nodes in this zombie
extent tree that need to be cleaned up.

crash_arm64_sprd_v8.0.3++> extent_tree.node_cnt ffffff80896cc500
  node_cnt = {
    counter = 1086911
  },
"

As reported by Xiuhong, there will be a huge number of extent nodes
in extent tree, it may potentially cause:
- slab memory fragments
- extreme long time shrink on extent tree
- low mapping efficiency

Let's add a sysfs node to limit max read extent count for each inode,
by default, value of this threshold is 10240, it can be updated
according to user's requirement.

Reported-by: Xiuhong Wang <xiuhong.wang@unisoc.com>
Closes: https://lore.kernel.org/linux-f2fs-devel/20241112110627.1314632-1-xiuhong.wang@unisoc.com/
Signed-off-by: Xiuhong Wang <xiuhong.wang@unisoc.com>
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2024-11-23 15:48:13 +00:00
Linus Torvalds
ceba6f6f33 IOMMU Updates for Linux v6.13:
Including:
 
 	- Core Updates:
 	  - Convert call-sites using iommu_domain_alloc() to more specific
 	    versions and remove function.
 	  - Introduce iommu_paging_domain_alloc_flags().
 	  - Extend support for allocating PASID-capable domains to more
 	    drivers.
 	  - Remove iommu_present().
 	  - Some smaller improvements.
 
 	- New IOMMU driver for RISC-V.
 
 	- Intel VT-d Updates:
 	  - Add domain_alloc_paging support.
 	  - Enable user space IOPFs in non-PASID and non-svm cases.
 	  - Small code refactoring and cleanups.
 	  - Add domain replacement support for pasid.
 
 	- AMD-Vi Updates:
 	  - Adapt to iommu_paging_domain_alloc_flags() interface and alloc V2
 	    page-tables by default.
 	  - Replace custom domain ID allocator with IDA allocator.
 	  - Add ops->release_domain() support.
 	  - Other improvements to device attach and domain allocation code
 	    paths.
 
 	- ARM-SMMU Updates:
 	  - SMMUv2:
 	    - Return -EPROBE_DEFER for client devices probing before their SMMU.
 	    - Devicetree binding updates for Qualcomm MMU-500 implementations.
 	  - SMMUv3:
 	    - Minor fixes and cleanup for NVIDIA's virtual command queue driver.
 	  - IO-PGTable:
 	    - Fix indexing of concatenated PGDs and extend selftest coverage.
 	    - Remove unused block-splitting support.
 
 	- S390 IOMMU:
 	  - Implement support for blocking domain.
 
 	- Mediatek IOMMU:
 	  - Enable 35-bit physical address support for mt8186.
 
 	- OMAP IOMMU driver:
 	  - Adapt to recent IOMMU core changes and unbreak driver.
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Merge tag 'iommu-updates-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Joerg Roedel:
 "Core Updates:
   - Convert call-sites using iommu_domain_alloc() to more specific
     versions and remove function
   - Introduce iommu_paging_domain_alloc_flags()
   - Extend support for allocating PASID-capable domains to more drivers
   - Remove iommu_present()
   - Some smaller improvements

  New IOMMU driver for RISC-V

  Intel VT-d Updates:
   - Add domain_alloc_paging support
   - Enable user space IOPFs in non-PASID and non-svm cases
   - Small code refactoring and cleanups
   - Add domain replacement support for pasid

  AMD-Vi Updates:
   - Adapt to iommu_paging_domain_alloc_flags() interface and alloc V2
     page-tables by default
   - Replace custom domain ID allocator with IDA allocator
   - Add ops->release_domain() support
   - Other improvements to device attach and domain allocation code
     paths

  ARM-SMMU Updates:
   - SMMUv2:
      - Return -EPROBE_DEFER for client devices probing before their
        SMMU
      - Devicetree binding updates for Qualcomm MMU-500 implementations
   - SMMUv3:
      - Minor fixes and cleanup for NVIDIA's virtual command queue
        driver
   - IO-PGTable:
      - Fix indexing of concatenated PGDs and extend selftest coverage
      - Remove unused block-splitting support

  S390 IOMMU:
   - Implement support for blocking domain

  Mediatek IOMMU:
   - Enable 35-bit physical address support for mt8186

  OMAP IOMMU driver:
   - Adapt to recent IOMMU core changes and unbreak driver"

* tag 'iommu-updates-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (92 commits)
  iommu/tegra241-cmdqv: Fix alignment failure at max_n_shift
  iommu: Make set_dev_pasid op support domain replacement
  iommu/arm-smmu-v3: Make set_dev_pasid() op support replace
  iommu/vt-d: Add set_dev_pasid callback for nested domain
  iommu/vt-d: Make identity_domain_set_dev_pasid() to handle domain replacement
  iommu/vt-d: Make intel_svm_set_dev_pasid() support domain replacement
  iommu/vt-d: Limit intel_iommu_set_dev_pasid() for paging domain
  iommu/vt-d: Make intel_iommu_set_dev_pasid() to handle domain replacement
  iommu/vt-d: Add iommu_domain_did() to get did
  iommu/vt-d: Consolidate the struct dev_pasid_info add/remove
  iommu/vt-d: Add pasid replace helpers
  iommu/vt-d: Refactor the pasid setup helpers
  iommu/vt-d: Add a helper to flush cache for updating present pasid entry
  iommu: Pass old domain to set_dev_pasid op
  iommu/iova: Fix typo 'adderss'
  iommu: Add a kdoc to iommu_unmap()
  iommu/io-pgtable-arm-v7s: Remove split on unmap behavior
  iommu/io-pgtable-arm: Remove split on unmap behavior
  iommu/vt-d: Drain PRQs when domain removed from RID
  iommu/vt-d: Drop pasid requirement for prq initialization
  ...
2024-11-22 19:55:10 -08:00
Linus Torvalds
eb78332b10 More thermal control updates for 6.13-rc1
- Add SAR2130P compatible to DT bindings in the QCom Tsens driver (Dmitry
    Baryshkov).
 
  - Add static annotation to arrays describing platform sensors in the
    LVTS Mediatek driver (Colin Ian King).
 
  - Switch back to struct platform_driver::remove() from the previous
    callbacks prototype rework (Uwe Kleine-König).
 
  - Add MSM8937 compatible to DT bindings and its support in the QCom
    Tsens driver (Barnabás Czémán).
 
  - Remove a pointless sign test on an unsigned value in k3_bgp_read_temp()
    in the k3_j72xx_bandgap driver (Rex Nie).
 
  - Fix a pointer reference loss when realloc() fails in the thermal
    library (Zhang Jiao).
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Merge tag 'thermal-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more thermal control updates from Rafael Wysocki:
 "These update a few thermal drivers used on ARM platforms and thermal
  tools:

   - Add SAR2130P compatible to DT bindings in the QCom Tsens driver
     (Dmitry Baryshkov)

   - Add static annotation to arrays describing platform sensors in the
     LVTS Mediatek driver (Colin Ian King)

   - Switch back to struct platform_driver::remove() from the previous
     callbacks prototype rework (Uwe Kleine-König)

   - Add MSM8937 compatible to DT bindings and its support in the QCom
     Tsens driver (Barnabás Czémán)

   - Remove a pointless sign test on an unsigned value in
     k3_bgp_read_temp() in the k3_j72xx_bandgap driver (Rex Nie)

   - Fix a pointer reference loss when realloc() fails in the thermal
     library (Zhang Jiao)"

* tag 'thermal-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  tools/thermal: Fix common realloc mistake
  thermal/drivers/k3_j72xx_bandgap: Simplify code in k3_bgp_read_temp()
  thermal/drivers/qcom/tsens-v1: Add support for MSM8937 tsens
  dt-bindings: thermal: tsens: Add MSM8937
  thermal: Switch back to struct platform_driver::remove()
  thermal/drivers/mediatek/lvts_thermal: Make read-only arrays static const
  dt-bindings: thermal: qcom-tsens: Add SAR2130P compatible
2024-11-22 19:43:18 -08:00
Linus Torvalds
6f9baa9b92 More power management updates for 6.13-rc1
- Add virtual cpufreq driver for guest kernels (David Dai).
 
  - Minor cleanup to various cpufreq drivers (Andy Shevchenko, Dhruva
    Gole, Jie Zhan, Jinjie Ruan, Shuosheng Huang, Sibi Sankar, and Yuan
    Can).
 
  - Revert "cpufreq: brcmstb-avs-cpufreq: Fix initial command check" (Colin
    Ian King).
 
  - Improve DT bindings for qcom-hw driver (Dmitry Baryshkov, Konrad
    Dybcio, and Nikunj Kela).
 
  - Make cpuidle_play_dead() try all idle states with :enter_dead()
    callbacks and change their return type to void (Rafael Wysocki).
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Merge tag 'pm-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These mostly are updates of cpufreq drivers used on ARM platforms plus
  one new DT-based cpufreq driver for virtualized guests and two cpuidle
  changes that should not make any difference on systems currently in
  the field, but will be needed for future development:

   - Add virtual cpufreq driver for guest kernels (David Dai)

   - Minor cleanup to various cpufreq drivers (Andy Shevchenko, Dhruva
     Gole, Jie Zhan, Jinjie Ruan, Shuosheng Huang, Sibi Sankar, and Yuan
     Can)

   - Revert "cpufreq: brcmstb-avs-cpufreq: Fix initial command check"
     (Colin Ian King)

   - Improve DT bindings for qcom-hw driver (Dmitry Baryshkov, Konrad
     Dybcio, and Nikunj Kela)

   - Make cpuidle_play_dead() try all idle states with :enter_dead()
     callbacks and change their return type to void (Rafael Wysocki)"

* tag 'pm-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
  cpuidle: Change :enter_dead() driver callback return type to void
  cpuidle: Do not return from cpuidle_play_dead() on callback failures
  arm64: dts: qcom: sc8180x: Add a SoC-specific compatible to cpufreq-hw
  dt-bindings: cpufreq: cpufreq-qcom-hw: Add SC8180X compatible
  cpufreq: sun50i: add a100 cpufreq support
  cpufreq: mediatek-hw: Fix wrong return value in mtk_cpufreq_get_cpu_power()
  cpufreq: CPPC: Fix wrong return value in cppc_get_cpu_power()
  cpufreq: CPPC: Fix wrong return value in cppc_get_cpu_cost()
  cpufreq: loongson3: Check for error code from devm_mutex_init() call
  cpufreq: scmi: Fix cleanup path when boost enablement fails
  cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost()
  cpufreq: CPPC: Fix possible null-ptr-deref for cpufreq_cpu_get_raw()
  Revert "cpufreq: brcmstb-avs-cpufreq: Fix initial command check"
  dt-bindings: cpufreq: cpufreq-qcom-hw: Add SAR2130P compatible
  cpufreq: add virtual-cpufreq driver
  dt-bindings: cpufreq: add virtual cpufreq device
  cpufreq: loongson2: Unregister platform_driver on failure
  cpufreq: ti-cpufreq: Remove revision offsets in AM62 family
  cpufreq: ti-cpufreq: Allow backward compatibility for efuse syscon
  cppc_cpufreq: Remove HiSilicon CPPC workaround
  ...
2024-11-22 19:29:48 -08:00
Linus Torvalds
9f3a2ba62c The core framework gained a clk provider helper, a clk consumer helper, and
some unit tests for the assigned clk rates feature in DeviceTree. On the vendor
 driver side, we gained a whole pile of SoC driver support detailed below. The
 majority in the diffstat is Qualcomm, but there's also quite a few Samsung and
 Mediatek clk driver additions in here as well. The top vendors is quite common,
 but the sheer amount of new drivers is uncommon, so I'm anticipating a larger
 number of fixes for clk drivers this cycle.
 
 Core:
  - devm_clk_bulk_get_all_enabled() to return number of clks acquired
  - devm_clk_hw_register_gate_parent_hw() helper to modernize drivers
  - KUnit tests for clk-assigned-rates{,-u64}
 
 New Drivers:
  - Marvell PXA1908 SoC clks
  - Mobileye EyeQ5, EyeQ6L and EyeQ6H clk driver
  - TWL6030 clk driver
  - Nuvoton Arbel BMC NPCM8XX SoC clks
  - MediaTek MT6735 SoC clks
  - MediaTek MT7620, MT7628 and MT7688 MMC clks
  - Add a driver for gated fixed rate clocks
  - Global clock controllers for Qualcomm QCS8300 and IPQ5424 SoCs
  - Camera, display and video clock controllers for Qualcomm SA8775P SoCs
  - Global, display, GPU, TCSR, and RPMh clock controllers for Qualcomm SAR2130P
  - Global, camera, display, GPU, and video clock controllers for Qualcomm
    SM8475 SoCs
  - RTC power domain and Battery Backup Function (VBATTB) clock support for the
    Renesas RZ/G3S SoC
  - Qualcomm IPQ9574 alpha PLLs
  - Support for i.MX91 CCM in the i.MX93 driver
  - Microchip LAN969X SoC clks
  - Cortex-A55 core clocks and Interrupt Control Unit (ICU) clock and reset on
    Renesas RZ/V2H(P)
  - Samsung ExynosAutov920 clk drivers for PERIC1, MISC, HSI0 and HSI1
  - Samsung Exynos8895 clk drivers for FSYS0/1, PERIC0/1, PERIS and TOP
 
 Updates:
  - Convert more clk bindings to YAML
  - Various clk driver cleanups: NULL checks, add const, etc.
  - Remove END/NUM #defines that count number of clks in various binding headers
  - Continue moving reset drivers to drivers/reset via auxiliary bus
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The core framework gained a clk provider helper, a clk consumer
  helper, and some unit tests for the assigned clk rates feature in
  DeviceTree. On the vendor driver side, we gained a whole pile of SoC
  driver support detailed below. The majority in the diffstat is
  Qualcomm, but there's also quite a few Samsung and Mediatek clk driver
  additions in here as well. The top vendors is quite common, but the
  sheer amount of new drivers is uncommon, so I'm anticipating a larger
  number of fixes for clk drivers this cycle.

  Core:
   - devm_clk_bulk_get_all_enabled() to return number of clks acquired
   - devm_clk_hw_register_gate_parent_hw() helper to modernize drivers
   - KUnit tests for clk-assigned-rates{,-u64}

  New Drivers:
   - Marvell PXA1908 SoC clks
   - Mobileye EyeQ5, EyeQ6L and EyeQ6H clk driver
   - TWL6030 clk driver
   - Nuvoton Arbel BMC NPCM8XX SoC clks
   - MediaTek MT6735 SoC clks
   - MediaTek MT7620, MT7628 and MT7688 MMC clks
   - Add a driver for gated fixed rate clocks
   - Global clock controllers for Qualcomm QCS8300 and IPQ5424 SoCs
   - Camera, display and video clock controllers for Qualcomm SA8775P
     SoCs
   - Global, display, GPU, TCSR, and RPMh clock controllers for Qualcomm
     SAR2130P
   - Global, camera, display, GPU, and video clock controllers for
     Qualcomm SM8475 SoCs
   - RTC power domain and Battery Backup Function (VBATTB) clock support
     for the Renesas RZ/G3S SoC
   - Qualcomm IPQ9574 alpha PLLs
   - Support for i.MX91 CCM in the i.MX93 driver
   - Microchip LAN969X SoC clks
   - Cortex-A55 core clocks and Interrupt Control Unit (ICU) clock and
     reset on Renesas RZ/V2H(P)
   - Samsung ExynosAutov920 clk drivers for PERIC1, MISC, HSI0 and HSI1
   - Samsung Exynos8895 clk drivers for FSYS0/1, PERIC0/1, PERIS and TOP

  Updates:
   - Convert more clk bindings to YAML
   - Various clk driver cleanups: NULL checks, add const, etc.
   - Remove END/NUM #defines that count number of clks in various
     binding headers
   - Continue moving reset drivers to drivers/reset via auxiliary bus"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (162 commits)
  clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access
  clk: Fix invalid execution of clk_set_rate
  clk: clk-loongson2: Fix memory corruption bug in struct loongson2_clk_provider
  clk: lan966x: make it selectable for ARCH_LAN969X
  clk: eyeq: add EyeQ6H west fixed factor clocks
  clk: eyeq: add EyeQ6H central fixed factor clocks
  clk: eyeq: add EyeQ5 fixed factor clocks
  clk: eyeq: add fixed factor clocks infrastructure
  clk: eyeq: require clock index with phandle in all cases
  clk: fixed-factor: add clk_hw_register_fixed_factor_index() function
  dt-bindings: clock: eyeq: add more Mobileye EyeQ5/EyeQ6H clocks
  dt-bindings: soc: mobileye: set `#clock-cells = <1>` for all compatibles
  clk: clk-axi-clkgen: make sure to enable the AXI bus clock
  dt-bindings: clock: axi-clkgen: include AXI clk
  clk: mmp: Add Marvell PXA1908 MPMU driver
  clk: mmp: Add Marvell PXA1908 APMU driver
  clk: mmp: Add Marvell PXA1908 APBCP driver
  clk: mmp: Add Marvell PXA1908 APBC driver
  dt-bindings: clock: Add Marvell PXA1908 clock bindings
  clk: mmp: Switch to use struct u32_fract instead of custom one
  ...
2024-11-22 17:02:25 -08:00
Linus Torvalds
2fb7eb3d7e - Improved handling of LCD power states and interactions with the fbdev subsystem.
- Introduced new LCD_POWER_ constants to decouple the LCD subsystem from fbdev.
 - Several drivers were updated to use the new LCD_POWER_ constants.
 - Clarified the semantics of the lcd_ops.controls_device callback.
 - Removed unnecessary includes and dependencies.
 - Removed unused notifier functionality.
 - Simplified code with scoped for-each loops.
 - Fixed module autoloading for the ktz8866 driver.
 - Updated device tree bindings to yaml format.
 - Minor cleanups and improvements in various drivers.
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Merge tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:

 - Improve handling of LCD power states and interactions with the fbdev
   subsystem

 - Introduce new LCD_POWER_ constants to decouple the LCD subsystem from
   fbdev

 - Update several drivers to use the new LCD_POWER_ constants

 - Clarify the semantics of the lcd_ops.controls_device callback

 - Remove unnecessary includes and dependencies

 - Remove unused notifier functionality

 - Simplify code with scoped for-each loops

 - Fix module autoloading for the ktz8866 driver

 - Update device tree bindings to yaml format

 - Minor cleanups and improvements in various drivers

* tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (33 commits)
  MAINTAINERS: Use Daniel Thompson's korg address for Backlight work
  dt-bindings: backlight: Convert zii,rave-sp-backlight.txt to yaml
  backlight: Remove notifier
  backlight: ktz8866: Fix module autoloading
  backlight: 88pm860x_bl: Simplify with scoped for each OF child loop
  backlight: lcd: Do not include <linux/fb.h> in lcd header
  backlight: lcd: Remove struct fb_videomode from set_mode callback
  backlight: lcd: Replace check_fb with controls_device
  HID: picoLCD: Replace check_fb in favor of struct fb_info.lcd_dev
  fbdev: omap: Use lcd power constants
  fbdev: imxfb: Use lcd power constants
  fbdev: imxfb: Replace check_fb in favor of struct fb_info.lcd_dev
  fbdev: clps711x-fb: Use lcd power constants
  fbdev: clps711x-fb: Replace check_fb in favor of struct fb_info.lcd_dev
  backlight: tdo24m: Use lcd power constants
  backlight: platform_lcd: Use lcd power constants
  backlight: platform_lcd: Remove match_fb from struct plat_lcd_data
  backlight: platform_lcd: Remove include statement for <linux/backlight.h>
  backlight: otm3225a: Use lcd power constants
  backlight: ltv350qv: Use lcd power constants
  ...
2024-11-22 16:29:57 -08:00
Linus Torvalds
93251bdf7a - Removed unused local header files from various drivers.
- Reverted platform driver removal to the original method for consistency.
 - Introduced ordered workqueues for LED events, replacing the less efficient system_wq.
 - Switched to a safer iteration macro in several drivers to prevent potential memory leaks.
 - Fixed a refcounting bug in the mt6360 flash LED driver.
 - Fixed an uninitialized variable in the mt6370_mc_pattern_clear() function.
 - Resolved Smatch warnings in the leds-bcm6328 driver.
 - Addressed a potential NULL pointer dereference in the brightness_show() function.
 - Fixed an incorrect format specifier in the ss4200 driver.
 - Prevented a resource leak in the max5970 driver's probe function.
 - Added support for specifying the number of serial shift bits in the device tree for the BCM63138 family.
 - Implemented multicolor brightness control in the lp5562 driver.
 - Added a device tree property to override the default LED pin polarity.
 - Added a property to specify the default brightness value when the LED is initially on.
 - Set missing timing properties for the ktd2692 driver.
 - Documented the "rc-feedback" trigger for controlling LEDs based on remote control activity.
 - Converted text bindings to YAML for the pca955x driver to enable device tree validation.
 - Removed redundant checks for invalid channel numbers in the lp55xx driver.
 - Updated the MAINTAINERS file with current contact information.
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Merge tag 'leds-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

PULL LED updates from Lee Jones:

 - Remove unused local header files from various drivers

 - Revert platform driver removal to the original method for consistency

 - Introduce ordered workqueues for LED events, replacing the less
   efficient system_wq

 - Switch to a safer iteration macro in several drivers to prevent
   potential memory leaks

 - Fix a refcounting bug in the mt6360 flash LED driver

 - Fix an uninitialized variable in the mt6370_mc_pattern_clear()
   function

 - Resolve Smatch warnings in the leds-bcm6328 driver

 - Address a potential NULL pointer dereference in the brightness_show()
   function

 - Fix an incorrect format specifier in the ss4200 driver

 - Prevent a resource leak in the max5970 driver's probe function

 - Add support for specifying the number of serial shift bits in the
   device tree for the BCM63138 family

 - Implement multicolor brightness control in the lp5562 driver

 - Add a device tree property to override the default LED pin polarity

 - Add a property to specify the default brightness value when the LED
   is initially on

 - Set missing timing properties for the ktd2692 driver

 - Document the "rc-feedback" trigger for controlling LEDs based on
   remote control activity

 - Convert text bindings to YAML for the pca955x driver to enable device
   tree validation

 - Remove redundant checks for invalid channel numbers in the lp55xx
   driver

 - Update the MAINTAINERS file with current contact information

* tag 'leds-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (46 commits)
  leds: ss4200: Fix the wrong format specifier for 'blinking'
  leds: pwm: Add optional DT property default-brightness
  dt-bindings: leds: pwm: Add default-brightness property
  leds: class: Protect brightness_show() with led_cdev->led_access mutex
  leds: ktd2692: Set missing timing properties
  leds: max5970: Fix unreleased fwnode_handle in probe function
  leds: Introduce ordered workqueue for LEDs events instead of system_wq
  MAINTAINERS: Replace Siemens IPC related bouncing maintainers
  leds: bcm6328: Replace divide condition with comparison for shift value
  leds: lp55xx: Remove redundant test for invalid channel number
  dt-bindings: leds: pca955x: Convert text bindings to YAML
  leds: rgb: leds-mt6370-rgb: Fix uninitialized variable 'ret' in mt6370_mc_pattern_clear
  leds: lp5562: Add multicolor brightness control
  dt-bindings: leds: Add 'active-high' property
  leds: Switch back to struct platform_driver::remove()
  leds: bcm63138: Add some register defines
  leds: bcm63138: Handle shift register config
  leds: bcm63138: Use scopes and guards
  dt-bindings: leds: bcm63138: Add shift register bits
  leds: leds-gpio-register: Reorganize kerneldoc parameter names
  ...
2024-11-22 16:25:20 -08:00
Linus Torvalds
80739fd00c - Several drivers, including atmel-flexcom/rk8xx-core, palmas, and
tps65010, have undergone minor code improvements to enhance consistency and
   fix race conditions.
 
 - The syscon driver now utilizes the regmap max_register_is_0 capability
   for consistent register map configuration across syscons of all sizes.
 
 - New device support has been added for QCS8300, qcs615, SA8255p, and
   samsung,s2dos05, expanding the range of compatible hardware.
 
 - The cros_ec driver now supports loading cros_ec_ucsi on supported ECs
   and avoids loading the charger with UCSI, streamlining functionality.
 
 - The bd96801 driver now utilizes the more modern maple tree register
   cache, improving performance.
 
 - The da9052-spi driver has undergone a fix to change the read-mask to
   write-mask, preventing potential issues.
 
 - Unused declarations in max77693 have been removed, and support for
   samsung,s2dos05 has been added, enhancing code clarity and device compatibility.
 
 - Error handling in cs42l43 has been fixed to avoid unbalanced regulator
   put and ensure proper synchronization during driver removal.
 
 - The wcd934x driver now uses MODULE_DEVICE_TABLE() instead of
   MODULE_ALIAS(), improving code consistency.
 
 - Documentation for qcom,tcsr, syscon, and atmel-smc has been updated
   and reorganized for better clarity and maintainability.
 
 - The intel_soc_pmic_bxtwc driver has undergone significant improvements,
   including the use of IRQ domains for various devices, fixing IRQ domain names
   duplication, and code refactoring for better consistency and maintainability.
 
 - The ipaq-micro driver has received a fix for a missing break statement in
   the default case, enhancing code robustness.
 
 - Support for the AXP323 PMIC has been added to the axp20x driver, along
   with ensuring a clear relationship between IDs and model names, and allowing
   multiple regulators, broadening hardware compatibility.
 
 - The cs42l43 driver now disables IRQs during suspend for improved power
   management.
 
 - The adp5585 driver has reduced its dependencies by dropping the obsolete
   dependency on COMPILE_TEST.
 
 - Initial support for the MT6328 PMIC has been added to the mt6397 driver,
   expanding the range of supported hardware.
 
 - The rtc-bd70528 driver has been simplified by dropping the IC name from
   IRQ, improving code readability.
 
 - Documentation for qcom,spmi-pmic, ti,twl, and zii,rave-sp has been
   updated to enhance clarity and incorporate new features.
 
 - The rt5033 driver has received a fix for a missing regmap_del_irq_chip()
   in the error handling path.
 
 - New device support has been added for MSM8917, and the
   intel_soc_pmic_crc driver now supports non-ACPI instantiated i2c_client.
 
 - The 88pm886 driver has added support for the RTC cell, and the tqmx86
   driver has improved its GPIO IRQ setup and added I2C IRQ support,
   increasing functionality.
 
 - The sprd,sc2731 DT schema has been updated and converted to YAML format
   for better readability and maintainability.
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Merge tag 'mfd-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:

 - Several drivers, including atmel-flexcom/rk8xx-core, palmas, and
   tps65010, have undergone minor code improvements to enhance
   consistency and fix race conditions.

 - The syscon driver now utilizes the regmap max_register_is_0
   capability for consistent register map configuration across syscons
   of all sizes.

 - New device support has been added for QCS8300, qcs615, SA8255p, and
   samsung,s2dos05, expanding the range of compatible hardware.

 - The cros_ec driver now supports loading cros_ec_ucsi on supported ECs
   and avoids loading the charger with UCSI, streamlining functionality.

 - The bd96801 driver now utilizes the more modern maple tree register
   cache, improving performance.

 - The da9052-spi driver has undergone a fix to change the read-mask to
   write-mask, preventing potential issues.

 - Unused declarations in max77693 have been removed, and support for
   samsung,s2dos05 has been added, enhancing code clarity and device
   compatibility.

 - Error handling in cs42l43 has been fixed to avoid unbalanced
   regulator put and ensure proper synchronization during driver
   removal.

 - The wcd934x driver now uses MODULE_DEVICE_TABLE() instead of
   MODULE_ALIAS(), improving code consistency.

 - Documentation for qcom,tcsr, syscon, and atmel-smc has been updated
   and reorganized for better clarity and maintainability.

 - The intel_soc_pmic_bxtwc driver has undergone significant
   improvements, including the use of IRQ domains for various devices,
   fixing IRQ domain names duplication, and code refactoring for better
   consistency and maintainability.

 - The ipaq-micro driver has received a fix for a missing break
   statement in the default case, enhancing code robustness.

 - Support for the AXP323 PMIC has been added to the axp20x driver,
   along with ensuring a clear relationship between IDs and model names,
   and allowing multiple regulators, broadening hardware compatibility.

 - The cs42l43 driver now disables IRQs during suspend for improved
   power management.

 - The adp5585 driver has reduced its dependencies by dropping the
   obsolete dependency on COMPILE_TEST.

 - Initial support for the MT6328 PMIC has been added to the mt6397
   driver, expanding the range of supported hardware.

 - The rtc-bd70528 driver has been simplified by dropping the IC name
   from IRQ, improving code readability.

 - Documentation for qcom,spmi-pmic, ti,twl, and zii,rave-sp has been
   updated to enhance clarity and incorporate new features.

 - The rt5033 driver has received a fix for a missing
   regmap_del_irq_chip() in the error handling path.

 - New device support has been added for MSM8917, and the
   intel_soc_pmic_crc driver now supports non-ACPI instantiated
   i2c_client.

 - The 88pm886 driver has added support for the RTC cell, and the tqmx86
   driver has improved its GPIO IRQ setup and added I2C IRQ support,
   increasing functionality.

 - The sprd,sc2731 DT schema has been updated and converted to YAML
   format for better readability and maintainability.

* tag 'mfd-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (62 commits)
  dt-bindings: mfd: bd71828: Use charger resistor in mOhm instead of MOhm
  dt-bindings: mfd: sprd,sc2731: Convert to YAML
  mfd: tqmx86: Add I2C IRQ support
  mfd: tqmx86: Make IRQ setup errors non-fatal
  mfd: tqmx86: Refactor GPIO IRQ setup
  mfd: tqmx86: Improve gpio_irq module parameter description
  mfd: tqmx86: Add board definitions for TQMx120UC, TQMx130UC and TQMxE41S
  mfd: 88pm886: Add the RTC cell
  dt-bindings: mfd: Add Realtek RTL9300 switch peripherals
  mfd: intel_soc_pmic_crc: Add support for non ACPI instantiated i2c_client
  mfd: intel_soc_pmic_*: Consistently use filename as driver name
  dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8917
  mfd: rt5033: Fix missing regmap_del_irq_chip()
  mfd: cgbc-core: Fix error handling paths in cgbc_init_device()
  dt-bindings: mfd: aspeed: Support for AST2700
  mfd: Switch back to struct platform_driver::remove()
  dt-bindings: mfd: qcom,spmi-pmic: Document PMICs added in SM8750
  mfd: rtc: bd7xxxx Drop IC name from IRQ
  mfd: mt6397: Add initial support for MT6328
  mfd: adp5585: Drop obsolete dependency on COMPILE_TEST
  ...
2024-11-22 16:19:47 -08:00
Linus Torvalds
06afb0f361 tracing updates for v6.13:
- Addition of faultable tracepoints
 
   There's a tracepoint attached to both a system call entry and exit. This
   location is known to allow page faults. The tracepoints are called under
   an rcu_read_lock() which does not allow faults that can sleep. This limits
   the ability of tracepoint handlers to page fault in user space system call
   parameters. Now these tracepoints have been made "faultable", allowing the
   callbacks to fault in user space parameters and record them.
 
   Note, only the infrastructure has been implemented. The consumers (perf,
   ftrace, BPF) now need to have their code modified to allow faults.
 
 - Fix up of BPF code for the tracepoint faultable logic
 
 - Update tracepoints to use the new static branch API
 
 - Remove trace_*_rcuidle() variants and the SRCU protection they used
 
 - Remove unused TRACE_EVENT_FL_FILTERED logic
 
 - Replace strncpy() with strscpy() and memcpy()
 
 - Use replace per_cpu_ptr(smp_processor_id()) with this_cpu_ptr()
 
 - Fix perf events to not duplicate samples when tracing is enabled
 
 - Replace atomic64_add_return(1, counter) with atomic64_inc_return(counter)
 
 - Make stack trace buffer 4K instead of PAGE_SIZE
 
 - Remove TRACE_FLAG_IRQS_NOSUPPORT flag as it was never used
 
 - Get the true return address for function tracer when function graph tracer
   is also running.
 
   When function_graph trace is running along with function tracer,
   the parent function of the function tracer sometimes is
   "return_to_handler", which is the function graph trampoline to record
   the exit of the function. Use existing logic that calls into the
   fgraph infrastructure to find the real return address.
 
 - Remove (un)regfunc pointers out of tracepoint structure
 
 - Added last minute bug fix for setting pending modules in stack function
   filter.
 
   echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter
 
   Would cause a kernel NULL dereference.
 
 - Minor clean ups
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Merge tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing updates from Steven Rostedt:

 - Addition of faultable tracepoints

   There's a tracepoint attached to both a system call entry and exit.
   This location is known to allow page faults. The tracepoints are
   called under an rcu_read_lock() which does not allow faults that can
   sleep. This limits the ability of tracepoint handlers to page fault
   in user space system call parameters. Now these tracepoints have been
   made "faultable", allowing the callbacks to fault in user space
   parameters and record them.

   Note, only the infrastructure has been implemented. The consumers
   (perf, ftrace, BPF) now need to have their code modified to allow
   faults.

 - Fix up of BPF code for the tracepoint faultable logic

 - Update tracepoints to use the new static branch API

 - Remove trace_*_rcuidle() variants and the SRCU protection they used

 - Remove unused TRACE_EVENT_FL_FILTERED logic

 - Replace strncpy() with strscpy() and memcpy()

 - Use replace per_cpu_ptr(smp_processor_id()) with this_cpu_ptr()

 - Fix perf events to not duplicate samples when tracing is enabled

 - Replace atomic64_add_return(1, counter) with
   atomic64_inc_return(counter)

 - Make stack trace buffer 4K instead of PAGE_SIZE

 - Remove TRACE_FLAG_IRQS_NOSUPPORT flag as it was never used

 - Get the true return address for function tracer when function graph
   tracer is also running.

   When function_graph trace is running along with function tracer, the
   parent function of the function tracer sometimes is
   "return_to_handler", which is the function graph trampoline to record
   the exit of the function. Use existing logic that calls into the
   fgraph infrastructure to find the real return address.

 - Remove (un)regfunc pointers out of tracepoint structure

 - Added last minute bug fix for setting pending modules in stack
   function filter.

     echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter

   Would cause a kernel NULL dereference.

 - Minor clean ups

* tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (31 commits)
  ftrace: Fix regression with module command in stack_trace_filter
  tracing: Fix function name for trampoline
  ftrace: Get the true parent ip for function tracer
  tracing: Remove redundant check on field->field in histograms
  bpf: ensure RCU Tasks Trace GP for sleepable raw tracepoint BPF links
  bpf: decouple BPF link/attach hook and BPF program sleepable semantics
  bpf: put bpf_link's program when link is safe to be deallocated
  tracing: Replace strncpy() with strscpy() when copying comm
  tracing: Add might_fault() check in __DECLARE_TRACE_SYSCALL
  tracing: Fix syscall tracepoint use-after-free
  tracing: Introduce tracepoint_is_faultable()
  tracing: Introduce tracepoint extended structure
  tracing: Remove TRACE_FLAG_IRQS_NOSUPPORT
  tracing: Replace multiple deprecated strncpy with memcpy
  tracing: Make percpu stack trace buffer invariant to PAGE_SIZE
  tracing: Use atomic64_inc_return() in trace_clock_counter()
  trace/trace_event_perf: remove duplicate samples on the first tracepoint event
  tracing/bpf: Add might_fault check to syscall probes
  tracing/perf: Add might_fault check to syscall probes
  tracing/ftrace: Add might_fault check to syscall probes
  ...
2024-11-22 13:27:01 -08:00
Linus Torvalds
4b01712311 tracing/tools: Updates for 6.13
- Add ':' to getopt option 'trace-buffer-size' in timerlat_hist for
   consistency
 
 - Remove unused sched_getattr define
 
 - Rename sched_setattr() helper to syscall_sched_setattr() to avoid
   conflicts
 
 - Update counters to long from int to avoid overflow
 
 - Add libcpupower dependency detection
 
 - Add --deepest-idle-state to timerlat to limit deep idle sleeps
 
 - Other minor clean ups and documentation changes
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Merge tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tools updates from Steven Rostedt:

 - Add ':' to getopt option 'trace-buffer-size' in timerlat_hist for
   consistency

 - Remove unused sched_getattr define

 - Rename sched_setattr() helper to syscall_sched_setattr() to avoid
   conflicts

 - Update counters to long from int to avoid overflow

 - Add libcpupower dependency detection

 - Add --deepest-idle-state to timerlat to limit deep idle sleeps

 - Other minor clean ups and documentation changes

* tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  verification/dot2: Improve dot parser robustness
  tools/rtla: Improve exception handling in timerlat_load.py
  tools/rtla: Enhance argument parsing in timerlat_load.py
  tools/rtla: Improve code readability in timerlat_load.py
  rtla/timerlat: Do not set params->user_workload with -U
  rtla: Documentation: Mention --deepest-idle-state
  rtla/timerlat: Add --deepest-idle-state for hist
  rtla/timerlat: Add --deepest-idle-state for top
  rtla/utils: Add idle state disabling via libcpupower
  rtla: Add optional dependency on libcpupower
  tools/build: Add libcpupower dependency detection
  rtla/timerlat: Make timerlat_hist_cpu->*_count unsigned long long
  rtla/timerlat: Make timerlat_top_cpu->*_count unsigned long long
  tools/rtla: fix collision with glibc sched_attr/sched_set_attr
  tools/rtla: drop __NR_sched_getattr
  rtla: Fix consistency in getopt_long for timerlat_hist
  rv: Fix a typo
  tools/rv: Correct the grammatical errors in the comments
  tools/rv: Correct the grammatical errors in the comments
  rtla: use the definition for stdout fd when calling isatty()
2024-11-22 13:24:22 -08:00
Linus Torvalds
563cb0b1e7 cxl changes for v6.13
- Constify range_contains() input parameters to prevent changes.
 - Add support for displaying RCD capabilities in sysfs to support lspci for CXL device.
 - Downgrade warning message to debug in cxl_probe_component_regs().
 - Add support for adding a printf specifier '$pra' to emit 'struct range' content.
   - Add sanity tests for 'struct resource'.
   - Add documentation for special case.
   - Add %pra for 'struct range'.
   - Add %pra usage in CXL code.
 - Add preparation code for DCD support
   - Add range_overlaps().
   - Add CDAT DSMAS table shared and read only flag in ACPICA.
   - Add documentation to 'struct dev_dax_range'.
   - Delay event buffer allocation in CXL PCI code until needed.
   - Use guard() in cxl_dpa_set_mode().
   - Refactor create region code to consolidate common code.
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Merge tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl updates from Dave Jiang:

 - Constify range_contains() input parameters to prevent changes

 - Add support for displaying RCD capabilities in sysfs to support lspci
   for CXL device

 - Downgrade warning message to debug in cxl_probe_component_regs()

 - Add support for adding a printf specifier '%pra' to emit 'struct
   range' content:
     - Add sanity tests for 'struct resource'
     - Add documentation for special case
     - Add %pra for 'struct range'
     - Add %pra usage in CXL code

 - Add preparation code for DCD support:
     - Add range_overlaps()
     - Add CDAT DSMAS table shared and read only flag in ACPICA
     - Add documentation to 'struct dev_dax_range'
     - Delay event buffer allocation in CXL PCI code until needed
     - Use guard() in cxl_dpa_set_mode()
     - Refactor create region code to consolidate common code

* tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/region: Refactor common create region code
  cxl/hdm: Use guard() in cxl_dpa_set_mode()
  cxl/pci: Delay event buffer allocation
  dax: Document struct dev_dax_range
  ACPI/CDAT: Add CDAT/DSMAS shared and read only flag values
  range: Add range_overlaps()
  cxl/cdat: Use %pra for dpa range outputs
  printf: Add print format (%pra) for struct range
  Documentation/printf: struct resource add start == end special case
  test printf: Add very basic struct resource tests
  cxl: downgrade a warning message to debug level in cxl_probe_component_regs()
  cxl/pci: Add sysfs attribute for CXL 1.1 device link status
  cxl/core/regs: Add rcd_pcie_cap initialization
  kernel/range: Const-ify range_contains parameters
2024-11-22 12:33:52 -08:00
Sebastian Fricke
83a474c11e docs: Add debugging guide for the media subsystem
Provide a guide for developers on how to debug code with a focus on the
media subsystem. This document aims to provide a rough overview over the
possibilities and a rational to help choosing the right tool for the
given circumstances.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-2-edf5c5b3746f@collabora.com
2024-11-22 10:48:12 -07:00
Sebastian Fricke
a037699da0 docs: Add debugging section to process
This idea was formed after noticing that new developers experience
certain difficulty to navigate within the multitude of different
debugging options in the Kernel and while there often is good
documentation for the tools, the developer has to know first that they
exist and where to find them.
Add a general debugging section to the Kernel documentation, as an
easily locatable entry point to other documentation and as a general
guideline for the topic.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-1-edf5c5b3746f@collabora.com
2024-11-22 10:48:12 -07:00
Uwe Kleine-König
d8c949c577 docs/licensing: Clarify wording about "GPL" and "Proprietary"
There are currently some doubts about out-of-tree kernel modules licensed
under GPLv3 and if they are supposed to be able to use symbols exported
using EXPORT_SYMBOL_GPL.

Clarify that "Proprietary" means anything non-GPL2 even though the
license might be an open source license. Also disambiguate "GPL
compatible" to "GPLv2 compatible".

Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241115103842.585207-2-ukleinek@kernel.org
2024-11-22 10:44:25 -07:00
Pavel Tikhomirov
21e500138b docs: core-api/gfp_mask-from-fs-io: indicate that vmalloc supports GFP_NOFS/GFP_NOIO
After the commit 451769ebb7 ("mm/vmalloc: alloc GFP_NO{FS,IO} for
vmalloc") in v5.17 it is now safe to use GFP_NOFS/GFP_NOIO flags
in [k]vmalloc, let's reflect it in documentation.

Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241119093922.567138-1-ptikhomirov@virtuozzo.com
2024-11-22 10:42:37 -07:00
Randy Dunlap
9e6c5870bb Documentation: kernel-doc: enumerate identifier *type*s
Explain that a kernel-doc :identifiers: line can refer to a struct,
union, enum, or typedef as well as functions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241119203201.110953-1-rdunlap@infradead.org
2024-11-22 10:37:40 -07:00