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Author SHA1 Message Date
Linus Torvalds
7acc137211 cxl for v6.4 
- Refactor the DOE infrastructure (Data Object Exchange PCI-config-cycle
   mailbox) to be a facility of the PCI core rather than the CXL core.
   This is foundational for upcoming support for PCI device-attestation and
   PCIe / CXL link encryption.
 
 - Add support for retrieving and injecting poison for CXL memory
   expanders. This enabling uses trace-events to convey CXL media error
   records to user tooling. It includes translation of device-local
   addresses (DPA) to system physical addresses (SPA) and their
   corresponding CXL region.
 
 - Fixes for decoder enumeration that missed v6.3-final
 
 - Miscellaneous fixups
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Merge tag 'cxl-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull compute express link updates from Dan Williams:
 "DOE support is promoted from drivers/cxl/ to drivers/pci/ with Bjorn's
  blessing, and the CXL core continues to mature its media management
  capabilities with support for listing and injecting media errors. Some
  late fixes that missed v6.3-final are also included:

   - Refactor the DOE infrastructure (Data Object Exchange
     PCI-config-cycle mailbox) to be a facility of the PCI core rather
     than the CXL core.

     This is foundational for upcoming support for PCI
     device-attestation and PCIe / CXL link encryption.

   - Add support for retrieving and injecting poison for CXL memory
     expanders.

     This enabling uses trace-events to convey CXL media error records
     to user tooling. It includes translation of device-local addresses
     (DPA) to system physical addresses (SPA) and their corresponding
     CXL region.

   - Fixes for decoder enumeration that missed v6.3-final

   - Miscellaneous fixups"

* tag 'cxl-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (38 commits)
  cxl/test: Add mock test for set_timestamp
  cxl/mbox: Update CMD_RC_TABLE
  tools/testing/cxl: Require CONFIG_DEBUG_FS
  tools/testing/cxl: Add a sysfs attr to test poison inject limits
  tools/testing/cxl: Use injected poison for get poison list
  tools/testing/cxl: Mock the Clear Poison mailbox command
  tools/testing/cxl: Mock the Inject Poison mailbox command
  cxl/mem: Add debugfs attributes for poison inject and clear
  cxl/memdev: Trace inject and clear poison as cxl_poison events
  cxl/memdev: Warn of poison inject or clear to a mapped region
  cxl/memdev: Add support for the Clear Poison mailbox command
  cxl/memdev: Add support for the Inject Poison mailbox command
  tools/testing/cxl: Mock support for Get Poison List
  cxl/trace: Add an HPA to cxl_poison trace events
  cxl/region: Provide region info to the cxl_poison trace event
  cxl/memdev: Add trigger_poison_list sysfs attribute
  cxl/trace: Add TRACE support for CXL media-error records
  cxl/mbox: Add GET_POISON_LIST mailbox command
  cxl/mbox: Initialize the poison state
  cxl/mbox: Restrict poison cmds to debugfs cxl_raw_allow_all
  ...
 2023-04-30 11:51:51 -07:00
Linus Torvalds
10de638d8e s390 updates for the 6.4 merge window 
- Add support for stackleak feature. Also allow specifying
   architecture-specific stackleak poison function to enable faster
   implementation. On s390, the mvc-based implementation helps decrease
   typical overhead from a factor of 3 to just 25%
 
 - Convert all assembler files to use SYM* style macros, deprecating the
   ENTRY() macro and other annotations. Select ARCH_USE_SYM_ANNOTATIONS
 
 - Improve KASLR to also randomize module and special amode31 code
   base load addresses
 
 - Rework decompressor memory tracking to support memory holes and improve
   error handling
 
 - Add support for protected virtualization AP binding
 
 - Add support for set_direct_map() calls
 
 - Implement set_memory_rox() and noexec module_alloc()
 
 - Remove obsolete overriding of mem*() functions for KASAN
 
 - Rework kexec/kdump to avoid using nodat_stack to call purgatory
 
 - Convert the rest of the s390 code to use flexible-array member instead
   of a zero-length array
 
 - Clean up uaccess inline asm
 
 - Enable ARCH_HAS_MEMBARRIER_SYNC_CORE
 
 - Convert to using CONFIG_FUNCTION_ALIGNMENT and enable
   DEBUG_FORCE_FUNCTION_ALIGN_64B
 
 - Resolve last_break in userspace fault reports
 
 - Simplify one-level sysctl registration
 
 - Clean up branch prediction handling
 
 - Rework CPU counter facility to retrieve available counter sets just
   once
 
 - Other various small fixes and improvements all over the code
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Merge tag 's390-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Add support for stackleak feature. Also allow specifying
   architecture-specific stackleak poison function to enable faster
   implementation. On s390, the mvc-based implementation helps decrease
   typical overhead from a factor of 3 to just 25%

 - Convert all assembler files to use SYM* style macros, deprecating the
   ENTRY() macro and other annotations. Select ARCH_USE_SYM_ANNOTATIONS

 - Improve KASLR to also randomize module and special amode31 code base
   load addresses

 - Rework decompressor memory tracking to support memory holes and
   improve error handling

 - Add support for protected virtualization AP binding

 - Add support for set_direct_map() calls

 - Implement set_memory_rox() and noexec module_alloc()

 - Remove obsolete overriding of mem*() functions for KASAN

 - Rework kexec/kdump to avoid using nodat_stack to call purgatory

 - Convert the rest of the s390 code to use flexible-array member
   instead of a zero-length array

 - Clean up uaccess inline asm

 - Enable ARCH_HAS_MEMBARRIER_SYNC_CORE

 - Convert to using CONFIG_FUNCTION_ALIGNMENT and enable
   DEBUG_FORCE_FUNCTION_ALIGN_64B

 - Resolve last_break in userspace fault reports

 - Simplify one-level sysctl registration

 - Clean up branch prediction handling

 - Rework CPU counter facility to retrieve available counter sets just
   once

 - Other various small fixes and improvements all over the code

* tag 's390-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (118 commits)
  s390/stackleak: provide fast __stackleak_poison() implementation
  stackleak: allow to specify arch specific stackleak poison function
  s390: select ARCH_USE_SYM_ANNOTATIONS
  s390/mm: use VM_FLUSH_RESET_PERMS in module_alloc()
  s390: wire up memfd_secret system call
  s390/mm: enable ARCH_HAS_SET_DIRECT_MAP
  s390/mm: use BIT macro to generate SET_MEMORY bit masks
  s390/relocate_kernel: adjust indentation
  s390/relocate_kernel: use SYM* macros instead of ENTRY(), etc.
  s390/entry: use SYM* macros instead of ENTRY(), etc.
  s390/purgatory: use SYM* macros instead of ENTRY(), etc.
  s390/kprobes: use SYM* macros instead of ENTRY(), etc.
  s390/reipl: use SYM* macros instead of ENTRY(), etc.
  s390/head64: use SYM* macros instead of ENTRY(), etc.
  s390/earlypgm: use SYM* macros instead of ENTRY(), etc.
  s390/mcount: use SYM* macros instead of ENTRY(), etc.
  s390/crc32le: use SYM* macros instead of ENTRY(), etc.
  s390/crc32be: use SYM* macros instead of ENTRY(), etc.
  s390/crypto,chacha: use SYM* macros instead of ENTRY(), etc.
  s390/amode31: use SYM* macros instead of ENTRY(), etc.
  ...
 2023-04-30 11:43:31 -07:00
Linus Torvalds
d55571c008 Kbuild updates for v6.4 
- Refactor scripts/kallsyms to make it faster and easier to maintain
 
  - Clean up menuconfig
 
  - Provide Clang with hard-coded target triple instead of CROSS_COMPILE
 
  - Use -z pack-relative-relocs flags instead of --use-android-relr-tags
    for arm64 CONFIG_RELR
 
  - Add srcdeb-pkg target to build only a Debian source package
 
  - Add KDEB_SOURCE_COMPRESS option to specify the compression for a
    Debian source package
 
  - Misc cleanups and fixes
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Merge tag 'kbuild-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Refactor scripts/kallsyms to make it faster and easier to maintain

 - Clean up menuconfig

 - Provide Clang with hard-coded target triple instead of CROSS_COMPILE

 - Use -z pack-relative-relocs flags instead of --use-android-relr-tags
   for arm64 CONFIG_RELR

 - Add srcdeb-pkg target to build only a Debian source package

 - Add KDEB_SOURCE_COMPRESS option to specify the compression for a
   Debian source package

 - Misc cleanups and fixes

* tag 'kbuild-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: deb-pkg: specify targets in debian/rules as .PHONY
  sparc: unify sparc32/sparc64 archhelp
  kbuild: rpm-pkg: remove kernel-drm PROVIDES
  kbuild: deb-pkg: add KDEB_SOURCE_COMPRESS to specify source compression
  kbuild: add srcdeb-pkg target
  Makefile: use -z pack-relative-relocs
  kbuild: clang: do not use CROSS_COMPILE for target triple
  kconfig: menuconfig: reorder functions to remove forward declarations
  kconfig: menuconfig: remove unused M_EVENT macro
  kconfig: menuconfig: remove OLD_NCURSES macro
  kbuild: builddeb: Eliminate debian/arch use
  scripts/kallsyms: update the usage in the comment block
  scripts/kallsyms: decrease expand_symbol() / cleanup_symbol_name() calls
  scripts/kallsyms: change the output order
  scripts/kallsyms: move compiler-generated symbol patterns to mksysmap
  scripts/kallsyms: exclude symbols generated by itself dynamically
  scripts/mksysmap: use sed with in-line comments
  scripts/mksysmap: remove comments described in nm(1)
  scripts/kallsyms: remove redundant code for omitting U and N
  kallsyms: expand symbol name into comment for debugging
 2023-04-30 11:32:53 -07:00
Linus Torvalds
310897659c Rust changes for v6.4 
More additions to the Rust core. Importantly, this adds the pin-init
 API, which will be used by other abstractions, such as the
 synchronization ones added here too:
 
   - pin-init API: a solution for the safe pinned initialization problem.
     This allows to reduce the need for 'unsafe' code in the kernel when
     dealing with data structures that require a stable address. Commit
     90e53c5e70 ("rust: add pin-init API core") contains a nice
     introduction -- here is an example of how it looks like:
 
         #[pin_data]
         struct Example {
             #[pin]
             value: Mutex<u32>,
 
             #[pin]
             value_changed: CondVar,
         }
 
         impl Example {
             fn new() -> impl PinInit<Self> {
                 pin_init!(Self {
                     value <- new_mutex!(0),
                     value_changed <- new_condvar!(),
                 })
             }
         }
 
         // In a `Box`.
         let b = Box::pin_init(Example::new())?;
 
         // In the stack.
         stack_pin_init!(let s = Example::new());
 
   - 'sync' module: new types 'LockClassKey' ('struct lock_class_key'),
     'Lock', 'Guard', 'Mutex' ('struct mutex'), 'SpinLock'
     ('spinlock_t'), 'LockedBy' and 'CondVar' (uses 'wait_queue_head_t'),
     plus macros such as 'static_lock_class!' and 'new_spinlock!'.
 
     In particular, 'Lock' and 'Guard' are generic implementations that
     contain code that is common to all locks. Then, different backends
     (the new 'Backend' trait) are implemented and used to define types
     like 'Mutex':
 
         type Mutex<T> = Lock<T, MutexBackend>;
 
     In addition, new methods 'assume_init()', 'init_with()' and
     'pin_init_with()' for 'UniqueArc<MaybeUninit<T>>' and 'downcast()'
     for 'Arc<dyn Any + Send + Sync>'; as well as 'Debug' and 'Display'
     implementations for 'Arc' and 'UniqueArc'. Reduced stack usage of
     'UniqueArc::try_new_uninit()', too.
 
   - 'types' module: new trait 'AlwaysRefCounted' and new type 'ARef'
     (an owned reference to an always-reference-counted object, meant to
     be used in wrappers for C types that have their own ref counting
     functions).
 
     Moreover, new associated functions 'raw_get()' and 'ffi_init()'
     for 'Opaque'.
 
   - New 'task' module with a new type 'Task' ('struct task_struct'), and
     a new macro 'current!' to safely get a reference to the current one.
 
   - New 'ioctl' module with new '_IOC*' const functions (equivalent to
     the C macros).
 
   - New 'uapi' crate, intended to be accessible by drivers directly.
 
   - 'macros' crate: new 'quote!' macro (similar to the one provided in
     userspace by the 'quote' crate); and the 'module!' macro now allows
     specifying multiple module aliases.
 
   - 'error' module: new associated functions for the 'Error' type,
     such as 'from_errno()' and new functions such as 'to_result()'.
 
   - 'alloc' crate: more fallible 'Vec' methods: 'try_resize` and
     'try_extend_from_slice' and the infrastructure (imported from
     the Rust standard library) they need.
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Merge tag 'rust-6.4' of https://github.com/Rust-for-Linux/linux

Pull rust updates from Miguel Ojeda
 "More additions to the Rust core. Importantly, this adds the pin-init
  API, which will be used by other abstractions, such as the
  synchronization ones added here too:

   - pin-init API: a solution for the safe pinned initialization
     problem.

     This allows to reduce the need for 'unsafe' code in the kernel when
     dealing with data structures that require a stable address. Commit
     90e53c5e70 ("rust: add pin-init API core") contains a nice
     introduction -- here is an example of how it looks like:

        #[pin_data]
        struct Example {
            #[pin]
            value: Mutex<u32>,

            #[pin]
            value_changed: CondVar,
        }

        impl Example {
            fn new() -> impl PinInit<Self> {
                pin_init!(Self {
                    value <- new_mutex!(0),
                    value_changed <- new_condvar!(),
                })
            }
        }

        // In a `Box`.
        let b = Box::pin_init(Example::new())?;

        // In the stack.
        stack_pin_init!(let s = Example::new());

   - 'sync' module:

     New types 'LockClassKey' ('struct lock_class_key'), 'Lock',
     'Guard', 'Mutex' ('struct mutex'), 'SpinLock' ('spinlock_t'),
     'LockedBy' and 'CondVar' (uses 'wait_queue_head_t'), plus macros
     such as 'static_lock_class!' and 'new_spinlock!'.

     In particular, 'Lock' and 'Guard' are generic implementations that
     contain code that is common to all locks. Then, different backends
     (the new 'Backend' trait) are implemented and used to define types
     like 'Mutex':

        type Mutex<T> = Lock<T, MutexBackend>;

     In addition, new methods 'assume_init()', 'init_with()' and
     'pin_init_with()' for 'UniqueArc<MaybeUninit<T>>' and 'downcast()'
     for 'Arc<dyn Any + Send + Sync>'; as well as 'Debug' and 'Display'
     implementations for 'Arc' and 'UniqueArc'. Reduced stack usage of
     'UniqueArc::try_new_uninit()', too.

   - 'types' module:

     New trait 'AlwaysRefCounted' and new type 'ARef' (an owned
     reference to an always-reference-counted object, meant to be used
     in wrappers for C types that have their own ref counting
     functions).

     Moreover, new associated functions 'raw_get()' and 'ffi_init()' for
     'Opaque'.

   - New 'task' module with a new type 'Task' ('struct task_struct'),
     and a new macro 'current!' to safely get a reference to the current
     one.

   - New 'ioctl' module with new '_IOC*' const functions (equivalent to
     the C macros).

   - New 'uapi' crate, intended to be accessible by drivers directly.

   - 'macros' crate: new 'quote!' macro (similar to the one provided in
     userspace by the 'quote' crate); and the 'module!' macro now allows
     specifying multiple module aliases.

   - 'error' module:

     New associated functions for the 'Error' type, such as
     'from_errno()' and new functions such as 'to_result()'.

   - 'alloc' crate:

     More fallible 'Vec' methods: 'try_resize` and
     'try_extend_from_slice' and the infrastructure (imported from the
     Rust standard library) they need"

* tag 'rust-6.4' of https://github.com/Rust-for-Linux/linux: (44 commits)
  rust: ioctl: Add ioctl number manipulation functions
  rust: uapi: Add UAPI crate
  rust: sync: introduce `CondVar`
  rust: lock: add `Guard::do_unlocked`
  rust: sync: introduce `LockedBy`
  rust: introduce `current`
  rust: add basic `Task`
  rust: introduce `ARef`
  rust: lock: introduce `SpinLock`
  rust: lock: introduce `Mutex`
  rust: sync: introduce `Lock` and `Guard`
  rust: sync: introduce `LockClassKey`
  MAINTAINERS: add Benno Lossin as Rust reviewer
  rust: init: broaden the blanket impl of `Init`
  rust: sync: add functions for initializing `UniqueArc<MaybeUninit<T>>`
  rust: sync: reduce stack usage of `UniqueArc::try_new_uninit`
  rust: types: add `Opaque::ffi_init`
  rust: prelude: add `pin-init` API items to prelude
  rust: init: add `Zeroable` trait and `init::zeroed` function
  rust: init: add `stack_pin_init!` macro
  ...
 2023-04-30 11:20:22 -07:00
Christophe JAILLET
db2993a423 ceph: reorder fields in 'struct ceph_snapid_map' 
Group some variables based on their sizes to reduce holes.
On x86_64, this shrinks the size of 'struct ceph_snapid_map' from 72 to 64
bytes.

When such a structure is allocated, because of the way memory allocation
works, when 72 bytes were requested, 96 bytes were allocated.

So, on x86_64, this change saves 32 bytes per allocation and has the
structure fit in a single cacheline.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2023-04-30 12:37:28 +02:00
Xiubo Li
a5ffd7b6e9 ceph: pass ino# instead of old_dentry if it's disconnected 
When exporting the kceph to NFS it may pass a DCACHE_DISCONNECTED
dentry for the link operation. Then it will parse this dentry as a
snapdir, and the mds will fail the link request as -EROFS.

MDS allow clients to pass a ino# instead of a path.

Link: https://tracker.ceph.com/issues/59515
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2023-04-30 12:37:28 +02:00
Xiubo Li
aaf67de788 ceph: fix potential use-after-free bug when trimming caps 
When trimming the caps and just after the 'session->s_cap_lock' is
released in ceph_iterate_session_caps() the cap maybe removed by
another thread, and when using the stale cap memory in the callbacks
it will trigger use-after-free crash.

We need to check the existence of the cap just after the 'ci->i_ceph_lock'
being acquired. And do nothing if it's already removed.

Cc: stable@vger.kernel.org
Link: https://tracker.ceph.com/issues/43272
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Luís Henriques <lhenriques@suse.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2023-04-30 12:37:28 +02:00
Xiubo Li
7d41870d65 ceph: implement writeback livelock avoidance using page tagging 
While the mapped IOs continue if we try to flush a file's buffer
we can see that the fsync() won't complete until the IOs finish.

This is analogous to Jan Kara's commit (f446daaea9 mm: implement
writeback livelock avoidance using page tagging), we will try to
avoid livelocks of writeback when some steadily creates dirty pages
in a mapping we are writing out.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2023-04-30 12:37:28 +02:00
Xiubo Li
7a6c3a035a ceph: do not print the whole xattr value if it's too long 
If the xattr's value size is long enough the kernel will warn and
then will fail the xfstests test case.

Just print part of the value string if it's too long.

At the same time fix the function name issue in the debug logs.

Link: https://tracker.ceph.com/issues/58404
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2023-04-30 12:37:28 +02:00
Akhil R
9f855779a3 i2c: tegra: Fix PEC support for SMBUS block read 
Update the msg->len value correctly for SMBUS block read. The discrepancy
went unnoticed as msg->len is used in SMBUS transfers only when a PEC
byte is added.

Fixes: d7583c8a57 ("i2c: tegra: Add SMBus block read function")
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
 2023-04-30 07:49:06 +02:00
Linus Torvalds
825a0714d2 EFI updates for v6.4: 
- relocate the LoongArch kernel if the preferred address is already
   occupied;
 
 - implement BTI annotations for arm64 EFI stub and zboot images;
 
 - clean up arm64 zboot Kbuild rules for injecting the kernel code size.
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Merge tag 'efi-next-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI updates from Ard Biesheuvel:

 - relocate the LoongArch kernel if the preferred address is already
   occupied

 - implement BTI annotations for arm64 EFI stub and zboot images

 - clean up arm64 zboot Kbuild rules for injecting the kernel code size

* tag 'efi-next-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi/zboot: arm64: Grab code size from ELF symbol in payload
  efi/zboot: arm64: Inject kernel code size symbol into the zboot payload
  efi/zboot: Set forward edge CFI compat header flag if supported
  efi/zboot: Add BSS padding before compression
  arm64: efi: Enable BTI codegen and add PE/COFF annotation
  efi/pe: Import new BTI/IBT header flags from the spec
  efi/loongarch: Reintroduce efi_relocate_kernel() to relocate kernel
 2023-04-29 17:42:33 -07:00
Linus Torvalds
17d4ded2fc power supply and reset changes for the v6.4 series 
- power-supply core support for automatic handling of constant
   battery data supplied by firmware
 - generic-adc-battery: major cleanup
 - axp288_charger: fix ACPI issues on x86 Android tablets
 - rk817: cleanup and fix handling for low state of charge
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Merge tag 'for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:

 - power-supply core support for automatic handling of constant battery
   data supplied by firmware

 - generic-adc-battery: major cleanup

 - axp288_charger: fix ACPI issues on x86 Android tablets

 - rk817: cleanup and fix handling for low state of charge

* tag 'for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (26 commits)
  power: supply: rk817: Fix low SOC bugs
  power: supply: rk817: Drop unneeded debugging code
  power: supply: axp288_charger: Use alt usb-id extcon on some x86 android tablets
  power: supply: generic-adc-battery: style fixes
  power: supply: generic-adc-battery: improve error message
  power: supply: generic-adc-battery: update copyright info
  power: supply: generic-adc-battery: add DT support
  power: supply: generic-adc-battery: add temperature support
  power: supply: generic-adc-battery: simplify read_channel logic
  power: supply: generic-adc-battery: use simple-battery API
  power: supply: generic-adc-battery: drop memory alloc error message
  power: supply: generic-adc-battery: drop charge now support
  power: supply: generic-adc-battery: drop jitter delay support
  power: supply: generic-adc-battery: fix unit scaling
  power: supply: generic-adc-battery: convert to managed resources
  power: supply: core: auto-exposure of simple-battery data
  dt-bindings: power: supply: adc-battery: add binding
  power: supply: bq256xx: Support to disable charger
  power: supply: charger-manager: Use of_property_read_bool() for boolean properties
  power: reset: qcom-pon: drop of_match_ptr for ID table
  ...
 2023-04-29 17:37:02 -07:00
Linus Torvalds
e81507acdc Nothing looks out of the ordinary in this batch of clk driver updates. There 
are a couple patches to the core clk framework, but they're all basically
 cleanups or debugging aids. The driver updates and new additions are dominated
 in the diffstat by Qualcomm and MediaTek drivers. Qualcomm gained a handful of
 new drivers for various SoCs, and MediaTek gained a bunch of drivers for
 MT8188. The MediaTek drivers are being modernized as well, so there are
 updates all over that vendor's clk drivers. There's also a couple other new clk
 drivers in here, for example the Starfive JH7110 SoC support is added.
 
 Outside of the two major SoC vendors though, we have the usual collection of
 non-critical fixes and cleanups to various clk drivers. It's good to see that
 we're getting more cleanups and modernization patches. Maybe one day we'll be
 able to properly split clk providers from clk consumers.
 
 Core:
  - Print an informational message before disabling unused clks
 
 New Drivers:
  - BCM63268 timer clock and reset controller
  - Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and
    MT8195 SoCs
  - Mediatek MT8188 SoC clk drivers
  - Clock driver for Sunplus SP7021 SoC
  - Clk driver support for Loongson-2 SoCs
  - Clock driver for Skyworks Si521xx I2C PCIe clock generators
  - Initial Starfive JH7110 clk/reset support
  - Global clock controller drivers for Qualcomm SM7150, IPQ9574, MSM8917 and IPQ5332 SoCs
  - GPU clock controller drivers for SM6115, SM6125, SM6375 and SA8775P SoCs
 
 Updates:
  - Shrink size of clk_fractional_divider a little
  - Convert various clk drivers to devm_of_clk_add_hw_provider()
  - Convert platform clk drivers to remove_new()
  - Converted most Mediatek clock drivers to struct platform_driver
  - MediaTek clock drivers can be built as modules
  - Reimplement Loongson-1 clk driver with DT support
  - Migrate socfpga clk driver to of_clk_add_hw_provider()
  - Support for i3c clks on Aspeed ast2600 SoCs
  - Add clock generic devm_clk_hw_register_gate_parent_data
  - Add audiomix block control for i.MX8MP
  - Add support for determine_rate to i.MX composite-8m
  - Let the LCDIF Pixel clock of i.MX8MM and i.MX8MN set parent rate
  - Provide clock name in error message for clk-gpr-mux on get parent failure
  - Drop duplicate imx_clk_mux_flags macro
  - Register the i.MX8MP Media Disp2 Pix clock as bus clock
  - Add Media LDB root clock to i.MX8MP
  - Make i.MX8MP nand_usdhc_bus clock as non-critical
  - Fix the rate table for i.MX fracn-gppll
  - Disable HW control for the fracn-gppll in order to be controlled by
    register write
  - Add support for interger PLL in fracn-gppll
  - Add mcore_booted module parameter to i.MX93 provider
  - Add NIC, A55 and ARM PLL clocks to i.MX93
  - Fix i.MX8ULP XBAR_DIVBUS and AD_SLOW clock parents
  - Use "divider closest" clock type for PLL4_PFD dividers on i.MX8ULP to
    get more accurate clock rates
  - Mark the MU0_Bi and TPM5 clocks on i.MX8ULP as critical
  - Update some of the i.MX critical clocks flags to allow glitchless
    on-the-fly rate change.
  - Add I2C5 clock on Renesas R-Car V3H
  - Exynos850: Add CMU_G3D clock controller for the Mali GPU
  - Extract Exynos5433 (ARM64) clock controller power management code to
    common driver parts
  - Exynos850: make PMU_ALIVE_PCLK clock critical
  - Add Audio, thermal, camera (CSI-2), Image Signal Processor/Channel
    Selector (ISPCS), and video capture (VIN) clocks on Renesas R-Car V4H
  - Add video capture (VIN) clocks on Renesas R-Car V3H
  - Add Cortex-A53 System CPU (Z2) clocks on Renesas R-Car V3M and V3H
  - Support for Stromer Plus PLL on Qualcomm IPQ5332
  - Add a missing reset to Qualcomm QCM2290
  - Migrate Qualcomm IPQ4019 to clk_parent_data
  - Make USB GDSCs enter retention state when disabled on Qualcomm SM6375,
    MSM8996 and MSM8998 SoCs
  - Set floor rounding clk_ops for Qualcomm QCM2290 SDCC2 clk
  - Add two EMAC GDSCs on Qualcomm SC8280XP
  - Use shared rcg clk ops in Qualcomm SM6115 GCC
  - Park Qualcomm SM8350 PCIe PIPE clks when disabled
  - Add GDSCs to Qualcomm SC7280 LPASS audio clock controller
  - Add missing XO clocks to Qualcomm MSM8226 and MSM8974
  - Convert some Qualcomm clk DT bindings to YAML
  - Reparenting fix for the clock supplying camera modules on Rockchip rk3399
  - Mark more critical (bus-)clocks on Rockchip rk3588
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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:
 "Nothing looks out of the ordinary in this batch of clk driver updates.

  There are a couple patches to the core clk framework, but they're all
  basically cleanups or debugging aids. The driver updates and new
  additions are dominated in the diffstat by Qualcomm and MediaTek
  drivers. Qualcomm gained a handful of new drivers for various SoCs,
  and MediaTek gained a bunch of drivers for MT8188. The MediaTek
  drivers are being modernized as well, so there are updates all over
  that vendor's clk drivers. There's also a couple other new clk drivers
  in here, for example the Starfive JH7110 SoC support is added.

  Outside of the two major SoC vendors though, we have the usual
  collection of non-critical fixes and cleanups to various clk drivers.
  It's good to see that we're getting more cleanups and modernization
  patches. Maybe one day we'll be able to properly split clk providers
  from clk consumers.

  Core:
   - Print an informational message before disabling unused clks

  New Drivers:
   - BCM63268 timer clock and reset controller
   - Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and
     MT8195 SoCs
   - Mediatek MT8188 SoC clk drivers
   - Clock driver for Sunplus SP7021 SoC
   - Clk driver support for Loongson-2 SoCs
   - Clock driver for Skyworks Si521xx I2C PCIe clock generators
   - Initial Starfive JH7110 clk/reset support
   - Global clock controller drivers for Qualcomm SM7150, IPQ9574,
     MSM8917 and IPQ5332 SoCs
   - GPU clock controller drivers for SM6115, SM6125, SM6375 and SA8775P
     SoCs

  Updates:
   - Shrink size of clk_fractional_divider a little
   - Convert various clk drivers to devm_of_clk_add_hw_provider()
   - Convert platform clk drivers to remove_new()
   - Converted most Mediatek clock drivers to struct platform_driver
   - MediaTek clock drivers can be built as modules
   - Reimplement Loongson-1 clk driver with DT support
   - Migrate socfpga clk driver to of_clk_add_hw_provider()
   - Support for i3c clks on Aspeed ast2600 SoCs
   - Add clock generic devm_clk_hw_register_gate_parent_data
   - Add audiomix block control for i.MX8MP
   - Add support for determine_rate to i.MX composite-8m
   - Let the LCDIF Pixel clock of i.MX8MM and i.MX8MN set parent rate
   - Provide clock name in error message for clk-gpr-mux on get parent
     failure
   - Drop duplicate imx_clk_mux_flags macro
   - Register the i.MX8MP Media Disp2 Pix clock as bus clock
   - Add Media LDB root clock to i.MX8MP
   - Make i.MX8MP nand_usdhc_bus clock as non-critical
   - Fix the rate table for i.MX fracn-gppll
   - Disable HW control for the fracn-gppll in order to be controlled by
     register write
   - Add support for interger PLL in fracn-gppll
   - Add mcore_booted module parameter to i.MX93 provider
   - Add NIC, A55 and ARM PLL clocks to i.MX93
   - Fix i.MX8ULP XBAR_DIVBUS and AD_SLOW clock parents
   - Use "divider closest" clock type for PLL4_PFD dividers on i.MX8ULP
     to get more accurate clock rates
   - Mark the MU0_Bi and TPM5 clocks on i.MX8ULP as critical
   - Update some of the i.MX critical clocks flags to allow glitchless
     on-the-fly rate change.
   - Add I2C5 clock on Renesas R-Car V3H
   - Exynos850: Add CMU_G3D clock controller for the Mali GPU
   - Extract Exynos5433 (ARM64) clock controller power management code
     to common driver parts
   - Exynos850: make PMU_ALIVE_PCLK clock critical
   - Add Audio, thermal, camera (CSI-2), Image Signal Processor/Channel
     Selector (ISPCS), and video capture (VIN) clocks on Renesas R-Car
     V4H
   - Add video capture (VIN) clocks on Renesas R-Car V3H
   - Add Cortex-A53 System CPU (Z2) clocks on Renesas R-Car V3M and V3H
   - Support for Stromer Plus PLL on Qualcomm IPQ5332
   - Add a missing reset to Qualcomm QCM2290
   - Migrate Qualcomm IPQ4019 to clk_parent_data
   - Make USB GDSCs enter retention state when disabled on Qualcomm
     SM6375, MSM8996 and MSM8998 SoCs
   - Set floor rounding clk_ops for Qualcomm QCM2290 SDCC2 clk
   - Add two EMAC GDSCs on Qualcomm SC8280XP
   - Use shared rcg clk ops in Qualcomm SM6115 GCC
   - Park Qualcomm SM8350 PCIe PIPE clks when disabled
   - Add GDSCs to Qualcomm SC7280 LPASS audio clock controller
   - Add missing XO clocks to Qualcomm MSM8226 and MSM8974
   - Convert some Qualcomm clk DT bindings to YAML
   - Reparenting fix for the clock supplying camera modules on Rockchip
     rk3399
   - Mark more critical (bus-)clocks on Rockchip rk3588"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (290 commits)
  clk: qcom: gcc-sc8280xp: Add EMAC GDSCs
  clk: starfive: Delete the redundant dev_set_drvdata() in JH7110 clock drivers
  clk: rockchip: rk3588: make gate linked clocks critical
  clk: qcom: dispcc-qcm2290: Remove inexistent DSI1PHY clk
  clk: qcom: add the GPUCC driver for sa8775p
  dt-bindings: clock: qcom: describe the GPUCC clock for SA8775P
  clk: qcom: gcc-sm8350: fix PCIe PIPE clocks handling
  clk: qcom: lpassaudiocc-sc7280: Add required gdsc power domain clks in lpass_cc_sc7280_desc
  clk: qcom: lpasscc-sc7280: Skip qdsp6ss clock registration
  dt-bindings: clock: qcom,sc7280-lpasscc: Add qcom,adsp-pil-mode property
  clk: starfive: Avoid casting iomem pointers
  clk: microchip: fix potential UAF in auxdev release callback
  clk: qcom: rpm: Use managed `of_clk_add_hw_provider()`
  clk: mediatek: fhctl: Mark local variables static
  clk: sifive: make SiFive clk drivers depend on ARCH_ symbols
  clk: uniphier: Use managed `of_clk_add_hw_provider()`
  clk: si5351: Use managed `of_clk_add_hw_provider()`
  clk: si570: Use managed `of_clk_add_hw_provider()`
  clk: si514: Use managed `of_clk_add_hw_provider()`
  clk: lmk04832: Use managed `of_clk_add_hw_provider()`
  ...
 2023-04-29 17:29:39 -07:00
Linus Torvalds
af3877265d v6.4 merge window RDMA pull request 
Usual wide collection of unrelated items in drivers:
 
 - Driver bug fixes and treewide cleanups in hfi1, siw, qib, mlx5, rxe,
   usnic, usnic, bnxt_re, ocrdma, iser
    * Unnecessary NULL checks
    * kmap obsolescence
    * pci_enable_pcie_error_reporting() obsolescence
    * Unused variables and macros
    * trace event related warnings
    * casting warnings
 
 - Code cleanups for irdm and erdma
 
 - EFA reporting of 128 byte PCIe TLP support
 
 - mlx5 more agressively uses the out of order HW feature
 
 - Big rework of how state machines and tasks work in rxe
 
 - Fix a syzkaller found crash netdev refcount leak in siw
 
 - bnxt_re revises their HW description header
 
 - Congestion control for bnxt_re
 
 - Use mmu_notifiers more safely in hfi1
 
 - mlx5 gets better support for PCIe relaxed ordering inside VMs
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Usual wide collection of unrelated items in drivers:

   - Driver bug fixes and treewide cleanups in hfi1, siw, qib, mlx5,
     rxe, usnic, usnic, bnxt_re, ocrdma, iser:
       - remove unnecessary NULL checks
       - kmap obsolescence
       - pci_enable_pcie_error_reporting() obsolescence
       - unused variables and macros
       - trace event related warnings
       - casting warnings

   - Code cleanups for irdm and erdma

   - EFA reporting of 128 byte PCIe TLP support

   - mlx5 more agressively uses the out of order HW feature

   - Big rework of how state machines and tasks work in rxe

   - Fix a syzkaller found crash netdev refcount leak in siw

   - bnxt_re revises their HW description header

   - Congestion control for bnxt_re

   - Use mmu_notifiers more safely in hfi1

   - mlx5 gets better support for PCIe relaxed ordering inside VMs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (81 commits)
  RDMA/efa: Add rdma write capability to device caps
  RDMA/mlx5: Use correct device num_ports when modify DC
  RDMA/irdma: Drop spurious WQ_UNBOUND from alloc_ordered_workqueue() call
  RDMA/rxe: Fix spinlock recursion deadlock on requester
  RDMA/mlx5: Fix flow counter query via DEVX
  RDMA/rxe: Protect QP state with qp->state_lock
  RDMA/rxe: Move code to check if drained to subroutine
  RDMA/rxe: Remove qp->req.state
  RDMA/rxe: Remove qp->comp.state
  RDMA/rxe: Remove qp->resp.state
  RDMA/mlx5: Allow relaxed ordering read in VFs and VMs
  net/mlx5: Update relaxed ordering read HCA capabilities
  RDMA/mlx5: Check pcie_relaxed_ordering_enabled() in UMR
  RDMA/mlx5: Remove pcie_relaxed_ordering_enabled() check for RO write
  RDMA: Add ib_virt_dma_to_page()
  RDMA/rxe: Fix the error "trying to register non-static key in rxe_cleanup_task"
  RDMA/irdma: Slightly optimize irdma_form_ah_cm_frame()
  RDMA/rxe: Fix incorrect TASKLET_STATE_SCHED check in rxe_task.c
  IB/hfi1: Place struct mmu_rb_handler on cache line start
  IB/hfi1: Fix bugs with non-PAGE_SIZE-end multi-iovec user SDMA requests
  ...
 2023-04-29 17:21:24 -07:00
Conor Dooley
26b0812f4c
 		RISC-V: fixup in-flight collision with ARCH_WANT_OPTIMIZE_VMEMMAP rename 
Lukas warned that ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP had been
renamed in the mm tree & that RISC-V would need a fixup as part of the
merge. The warning was missed however, and RISC-V is selecting the
orphaned Kconfig option.

Fixes: 89d77f71f4 ("Merge tag 'riscv-for-linus-6.4-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux")
Reported-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>.
Link: https://lore.kernel.org/linux-riscv/CAKXUXMyVeg2kQK_edKHtMD3eADrDK_PKhCSVkMrLDdYgTQQ5rg@mail.gmail.com/
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20230429-trilogy-jolly-12bf5c53d62d@spud
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 15:33:10 -07:00
Randy Dunlap
a2a58b5ca1
 		RISC-V: fix sifive and thead section mismatches in errata 
When CONFIG_MODULES is set, __init_or_module becomes <empty>, but when
CONFIG_MODULES is not set, __init_or_module becomes __init.
In the latter case, it causes section mismatch warnings:

WARNING: modpost: vmlinux.o: section mismatch in reference: riscv_fill_cpu_mfr_info (section: .text) -> sifive_errata_patch_func (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: riscv_fill_cpu_mfr_info (section: .text) -> thead_errata_patch_func (section: .init.text)

Fixes: bb3f89487f ("RISC-V: hwprobe: Remove __init on probe_vendor_features()")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Evan Green  <evan@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230429155247.12131-1-rdunlap@infradead.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 13:18:19 -07:00
Andrew Jones
41cad8284d
 		RISC-V: Align SBI probe implementation with spec 
sbi_probe_extension() is specified with "Returns 0 if the given SBI
extension ID (EID) is not available, or 1 if it is available unless
defined as any other non-zero value by the implementation."
Additionally, sbiret.value is a long. Fix the implementation to
ensure any nonzero long value is considered a success, rather
than only positive int values.

Fixes: b9dcd9e415 ("RISC-V: Add basic support for SBI v0.2")
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230427163626.101042-1-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 13:04:50 -07:00
Song Shuai
e4ef93edd4
 		riscv: mm: remove redundant parameter of create_fdt_early_page_table 
create_fdt_early_page_table() explicitly uses early_pg_dir for
32-bit fdt mapping and the pgdir parameter is redundant here.
So remove it and its caller.

Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Song Shuai <suagrfillet@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Fixes: ef69d2559f ("riscv: Move early dtb mapping into the fixmap region")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230426100009.685435-1-suagrfillet@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 13:03:01 -07:00
Palmer Dabbelt
38dab744f7
 		Merge patch series "RISC-V Hibernation Support" 
Sia Jee Heng <jeeheng.sia@starfivetech.com> says:

This series adds RISC-V Hibernation/suspend to disk support.
Low level Arch functions were created to support hibernation.
swsusp_arch_suspend() relies code from __cpu_suspend_enter() to write
cpu state onto the stack, then calling swsusp_save() to save the memory
image.

Arch specific hibernation header is implemented and is utilized by the
arch_hibernation_header_restore() and arch_hibernation_header_save()
functions. The arch specific hibernation header consists of satp, hartid,
and the cpu_resume address. The kernel built version is also need to be
saved into the hibernation image header to making sure only the same
kernel is restore when resume.

swsusp_arch_resume() creates a temporary page table that covering only
the linear map. It copies the restore code to a 'safe' page, then start to
restore the memory image. Once completed, it restores the original
kernel's page table. It then calls into __hibernate_cpu_resume()
to restore the CPU context. Finally, it follows the normal hibernation
path back to the hibernation core.

To enable hibernation/suspend to disk into RISCV, the below config
need to be enabled:
- CONFIG_HIBERNATION
- CONFIG_ARCH_HIBERNATION_HEADER
- CONFIG_ARCH_HIBERNATION_POSSIBLE

At high-level, this series includes the following changes:
1) Change suspend_save_csrs() and suspend_restore_csrs()
   to public function as these functions are common to
   suspend/hibernation. (patch 1)
2) Refactor the common code in the __cpu_resume_enter() function and
   __hibernate_cpu_resume() function. The common code are used by
   hibernation and suspend. (patch 2)
3) Enhance kernel_page_present() function to support huge page. (patch 3)
4) Add arch/riscv low level functions to support
   hibernation/suspend to disk. (patch 4)

* b4-shazam-merge:
  RISC-V: Add arch functions to support hibernation/suspend-to-disk
  RISC-V: mm: Enable huge page support to kernel_page_present() function
  RISC-V: Factor out common code of __cpu_resume_enter()
  RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function

Link: https://lore.kernel.org/r/20230330064321.1008373-1-jeeheng.sia@starfivetech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 11:27:33 -07:00
Nathan Chancellor
b3d6bdfea2
 		riscv: Adjust dependencies of HAVE_DYNAMIC_FTRACE selection 
When building allmodconfig with clang and its integrated assembler and
linking with a version of GNU ld prior to 2.36, the following link error
occurs:

  riscv64-linux-gnu-ld: .init.data has both ordered [`__patchable_function_entries' in init/main.o] and unordered [`.init_array.0' in kernel/trace/trace_benchmark.o] sections
  riscv64-linux-gnu-ld: final link failed: bad value

This is the same error addressed by commit 45bd895180 ("arm64: Improve
HAVE_DYNAMIC_FTRACE_WITH_REGS selection for clang") for arm64. See that
changelog for a full description of why this error occurs with this
combination of tools.

In a similar manner as that change, restrict the
CONFIG_HAVE_DYNAMIC_FTRACE selection to combinations of tools known to
work so that there are no errors.

Link: https://github.com/ClangBuiltLinux/linux/issues/1817
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230404-riscv-dynamic-ftrace-checks-clang-v1-1-0ce296b7d423@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 11:27:32 -07:00
Sia Jee Heng
c031721001
 		RISC-V: Add arch functions to support hibernation/suspend-to-disk 
Low level Arch functions were created to support hibernation.
swsusp_arch_suspend() relies code from __cpu_suspend_enter() to write
cpu state onto the stack, then calling swsusp_save() to save the memory
image.

Arch specific hibernation header is implemented and is utilized by the
arch_hibernation_header_restore() and arch_hibernation_header_save()
functions. The arch specific hibernation header consists of satp, hartid,
and the cpu_resume address. The kernel built version is also need to be
saved into the hibernation image header to making sure only the same
kernel is restore when resume.

swsusp_arch_resume() creates a temporary page table that covering only
the linear map. It copies the restore code to a 'safe' page, then start
to restore the memory image. Once completed, it restores the original
kernel's page table. It then calls into __hibernate_cpu_resume()
to restore the CPU context. Finally, it follows the normal hibernation
path back to the hibernation core.

To enable hibernation/suspend to disk into RISCV, the below config
need to be enabled:
- CONFIG_HIBERNATION
- CONFIG_ARCH_HIBERNATION_HEADER
- CONFIG_ARCH_HIBERNATION_POSSIBLE

Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Reviewed-by: Mason Huo <mason.huo@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230330064321.1008373-5-jeeheng.sia@starfivetech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 11:25:13 -07:00
Sia Jee Heng
a15c90b67a
 		RISC-V: mm: Enable huge page support to kernel_page_present() function 
Currently kernel_page_present() function doesn't support huge page
detection causes the function to mistakenly return false to the
hibernation core.

Add huge page detection to the function to solve the problem.

Fixes: 9e953cda5c ("riscv: Introduce huge page support for 32/64bit kernel")
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Reviewed-by: Mason Huo <mason.huo@starfivetech.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230330064321.1008373-4-jeeheng.sia@starfivetech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 11:25:12 -07:00
Sia Jee Heng
fcb89863d1
 		RISC-V: Factor out common code of __cpu_resume_enter() 
The cpu_resume() function is very similar for the suspend to disk and
suspend to ram cases. Factor out the common code into suspend_restore_csrs
macro and suspend_restore_regs macro.

Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230330064321.1008373-3-jeeheng.sia@starfivetech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 11:25:11 -07:00
Sia Jee Heng
0def12f321
 		RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function 
Currently suspend_save_csrs() and suspend_restore_csrs() functions are
statically defined in the suspend.c. Change the function's attribute
to public so that the functions can be used by hibernation as well.

Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Reviewed-by: Mason Huo <mason.huo@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230330064321.1008373-2-jeeheng.sia@starfivetech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2023-04-29 11:25:10 -07:00
Linus Torvalds
1ae78a1451 five ksmbd server fixes, and new lock_rename_child VFS helper routine 
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Merge tag '6.4-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd

Pull ksmbd server updates from Steve French:

 - SMB3.1.1 negotiate context fixes and cleanup

 - new lock_rename_child VFS helper

 - ksmbd fix to avoid unlink race and to use the new VFS helper to avoid
   rename race

* tag '6.4-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
  ksmbd: fix racy issue from using ->d_parent and ->d_name
  ksmbd: remove unused compression negotiate ctx packing
  ksmbd: avoid duplicate negotiate ctx offset increments
  ksmbd: set NegotiateContextCount once instead of every inc
  fs: introduce lock_rename_child() helper
  ksmbd: remove internal.h include
 2023-04-29 11:10:39 -07:00
Linus Torvalds
4e1c80ae5c NFSD 6.4 Release Notes 
The big ticket item for this release is support for RPC-with-TLS
 [RFC 9289] has been added to the Linux NFS server. The goal is to
 provide a simple-to-deploy, low-overhead in-transit confidentiality
 and peer authentication mechanism. It can supplement NFS Kerberos
 and it can protect the use of legacy non-cryptographic user
 authentication flavors such as AUTH_SYS. The TLS Record protocol is
 handled entirely by kTLS, meaning it can use either software
 encryption or offload encryption to smart NICs.
 
 Work continues on improving NFSD's open file cache. Among the many
 clean-ups in that area is a patch to convert the rhashtable to use
 the list-hashing version of that data structure.
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Merge tag 'nfsd-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "The big ticket item for this release is that support for RPC-with-TLS
  [RFC 9289] has been added to the Linux NFS server.

  The goal is to provide a simple-to-deploy, low-overhead in-transit
  confidentiality and peer authentication mechanism. It can supplement
  NFS Kerberos and it can protect the use of legacy non-cryptographic
  user authentication flavors such as AUTH_SYS. The TLS Record protocol
  is handled entirely by kTLS, meaning it can use either software
  encryption or offload encryption to smart NICs.

  Aside from that, work continues on improving NFSD's open file cache.
  Among the many clean-ups in that area is a patch to convert the
  rhashtable to use the list-hashing version of that data structure"

* tag 'nfsd-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (31 commits)
  NFSD: Handle new xprtsec= export option
  SUNRPC: Support TLS handshake in the server-side TCP socket code
  NFSD: Clean up xattr memory allocation flags
  NFSD: Fix problem of COMMIT and NFS4ERR_DELAY in infinite loop
  SUNRPC: Clear rq_xid when receiving a new RPC Call
  SUNRPC: Recognize control messages in server-side TCP socket code
  SUNRPC: Be even lazier about releasing pages
  SUNRPC: Convert svc_xprt_release() to the release_pages() API
  SUNRPC: Relocate svc_free_res_pages()
  nfsd: simplify the delayed disposal list code
  SUNRPC: Ignore return value of ->xpo_sendto
  SUNRPC: Ensure server-side sockets have a sock->file
  NFSD: Watch for rq_pages bounds checking errors in nfsd_splice_actor()
  sunrpc: simplify two-level sysctl registration for svcrdma_parm_table
  SUNRPC: return proper error from get_expiry()
  lockd: add some client-side tracepoints
  nfs: move nfs_fhandle_hash to common include file
  lockd: server should unlock lock if client rejects the grant
  lockd: fix races in client GRANTED_MSG wait logic
  lockd: move struct nlm_wait to lockd.h
  ...
 2023-04-29 11:04:14 -07:00
Linus Torvalds
0127f25b5d NFS Client Updates for Linux 6.4 
New Features:
   * Convert the readdir path to use folios
   * Convert the NFS fscache code to use netfs
 
 Bugfixes and Cleanups:
   * Always send a RECLAIM_COMPLETE after establishing a lease
   * Simplify sysctl registrations and other cleanups
   * Handle out-of-order write replies on NFS v3
   * Have sunrpc call_bind_status use standard hard/soft task semantics
   * Other minor cleanups
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Merge tag 'nfs-for-6.4-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "New Features:

   - Convert the readdir path to use folios

   - Convert the NFS fscache code to use netfs

  Bugfixes and Cleanups:

   - Always send a RECLAIM_COMPLETE after establishing a lease

   - Simplify sysctl registrations and other cleanups

   - Handle out-of-order write replies on NFS v3

   - Have sunrpc call_bind_status use standard hard/soft task semantics

   - Other minor cleanups"

* tag 'nfs-for-6.4-1' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFSv4.2: Rework scratch handling for READ_PLUS
  NFS: Cleanup unused rpc_clnt variable
  NFS: set varaiable nfs_netfs_debug_id storage-class-specifier to static
  SUNRPC: remove the maximum number of retries in call_bind_status
  NFS: Convert readdir page array functions to use a folio
  NFS: Convert the readdir array-of-pages into an array-of-folios
  NFSv3: handle out-of-order write replies.
  NFS: Remove fscache specific trace points and NFS_INO_FSCACHE bit
  NFS: Remove all NFSIOS_FSCACHE counters due to conversion to netfs API
  NFS: Convert buffered read paths to use netfs when fscache is enabled
  NFS: Configure support for netfs when NFS fscache is configured
  NFS: Rename readpage_async_filler to nfs_read_add_folio
  sunrpc: simplify one-level sysctl registration for debug_table
  sunrpc: move sunrpc_table and proc routines above
  sunrpc: simplify one-level sysctl registration for xs_tunables_table
  sunrpc: simplify one-level sysctl registration for xr_tunables_table
  nfs: simplify two-level sysctl registration for nfs_cb_sysctls
  nfs: simplify two-level sysctl registration for nfs4_cb_sysctls
  lockd: simplify two-level sysctl registration for nlm_sysctls
  NFSv4.1: Always send a RECLAIM_COMPLETE after establishing lease
 2023-04-29 10:58:44 -07:00
Linus Torvalds
1e098dec61 driver ntfs3 for linux 6.4 
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Merge tag 'ntfs3_for_6.4' of https://github.com/Paragon-Software-Group/linux-ntfs3

Pull ntfs3 updates from Konstantin Komarov:
 "New code:

   - add missed "nocase" in ntfs_show_options

   - extend information on failures/errors

   - small optimizations

  Fixes:

   - some logic errors

   - some dead code was removed

   - code is refactored and reformatted according to the new version of
     clang-format

  Code removal:

   - 'noacsrules' option.

     Currently, this option does not work properly, and its use leads to
     unstable results. If we figure out how to implement it without
     errors, we will add it later

   - writepage"

* tag 'ntfs3_for_6.4' of https://github.com/Paragon-Software-Group/linux-ntfs3: (30 commits)
  fs/ntfs3: Fix root inode checking
  fs/ntfs3: Print details about mount fails
  fs/ntfs3: Add missed "nocase" in ntfs_show_options
  fs/ntfs3: Code formatting and refactoring
  fs/ntfs3: Changed ntfs_get_acl() to use dentry
  fs/ntfs3: Remove field sbi->used.bitmap.set_tail
  fs/ntfs3: Undo critial modificatins to keep directory consistency
  fs/ntfs3: Undo endian changes
  fs/ntfs3: Optimization in ntfs_set_state()
  fs/ntfs3: Fix ntfs_create_inode()
  fs/ntfs3: Remove noacsrules
  fs/ntfs3: Use bh_read to simplify code
  fs/ntfs3: Fix a possible null-pointer dereference in ni_clear()
  fs/ntfs3: Refactoring of various minor issues
  fs/ntfs3: Restore overflow checking for attr size in mi_enum_attr
  fs/ntfs3: Check for extremely large size of $AttrDef
  fs/ntfs3: Improved checking of attribute's name length
  fs/ntfs3: Add null pointer checks
  fs/ntfs3: fix spelling mistake "attibute" -> "attribute"
  fs/ntfs3: Add length check in indx_get_root
  ...
 2023-04-29 10:52:37 -07:00
Linus Torvalds
56c455b38d xfs: New code for 6.4 
o Added detailed design documentation for the upcoming online repair feature
 o major update to online scrub to complete the reverse mapping cross-referencing
   infrastructure enabling us to fully validate allocated metadata against owner
   records. This is the last piece of scrub infrastructure needed before we can
   start merging online repair functionality.
 o Fixes for the ascii-ci hashing issues
 o deprecation of the ascii-ci functionality
 o on-disk format verification bug fixes
 o various random bug fixes for syzbot and other bug reports
 
 Signed-off-by: Dave Chinner <david@fromorbit.com>
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Merge tag 'xfs-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Dave Chinner:
 "This consists mainly of online scrub functionality and the design
  documentation for the upcoming online repair functionality built on
  top of the scrub code:

   - Added detailed design documentation for the upcoming online repair
     feature

   - major update to online scrub to complete the reverse mapping
     cross-referencing infrastructure enabling us to fully validate
     allocated metadata against owner records. This is the last piece of
     scrub infrastructure needed before we can start merging online
     repair functionality.

   - Fixes for the ascii-ci hashing issues

   - deprecation of the ascii-ci functionality

   - on-disk format verification bug fixes

   - various random bug fixes for syzbot and other bug reports"

* tag 'xfs-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (107 commits)
  xfs: fix livelock in delayed allocation at ENOSPC
  xfs: Extend table marker on deprecated mount options table
  xfs: fix duplicate includes
  xfs: fix BUG_ON in xfs_getbmap()
  xfs: verify buffer contents when we skip log replay
  xfs: _{attr,data}_map_shared should take ILOCK_EXCL until iread_extents is completely done
  xfs: remove WARN when dquot cache insertion fails
  xfs: don't consider future format versions valid
  xfs: deprecate the ascii-ci feature
  xfs: test the ascii case-insensitive hash
  xfs: stabilize the dirent name transformation function used for ascii-ci dir hash computation
  xfs: cross-reference rmap records with refcount btrees
  xfs: cross-reference rmap records with inode btrees
  xfs: cross-reference rmap records with free space btrees
  xfs: cross-reference rmap records with ag btrees
  xfs: introduce bitmap type for AG blocks
  xfs: convert xbitmap to interval tree
  xfs: drop the _safe behavior from the xbitmap foreach macro
  xfs: don't load local xattr values during scrub
  xfs: remove the for_each_xbitmap_ helpers
  ...
 2023-04-29 10:44:27 -07:00
Linus Torvalds
bedf149527 New code for 6.4: 
* Remove an unused symbol.
  * Add tracepoints for the directio code.
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'iomap-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap updates from Darrick Wong:
 "The only changes for this cycle are the addition of tracepoints to the
  iomap directio code so that Ritesh (who is working on porting ext2 to
  iomap) can observe the io flows more easily.

  Summary:

   - Remove an unused symbol

   - Add tracepoints for the directio code"

* tag 'iomap-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: Add DIO tracepoints
  iomap: Remove IOMAP_DIO_NOSYNC unused dio flag
  fs.h: Add TRACE_IOCB_STRINGS for use in trace points
 2023-04-29 10:35:48 -07:00
Linus Torvalds
b28e6315a0 dma-mapping updates for Linux 6.4 
- fix a PageHighMem check in dma-coherent initialization (Doug Berger)
  - clean up the coherency defaul initialiation (Jiaxun Yang)
  - add cacheline to user/kernel dma-debug space dump messages
    (Desnes Nunes, Geert Uytterhoeve)
  - swiotlb statistics improvements (Michael Kelley)
  - misc cleanups (Petr Tesarik)
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Merge tag 'dma-mapping-6.4-2023-04-28' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - fix a PageHighMem check in dma-coherent initialization (Doug Berger)

 - clean up the coherency defaul initialiation (Jiaxun Yang)

 - add cacheline to user/kernel dma-debug space dump messages (Desnes
   Nunes, Geert Uytterhoeve)

 - swiotlb statistics improvements (Michael Kelley)

 - misc cleanups (Petr Tesarik)

* tag 'dma-mapping-6.4-2023-04-28' of git://git.infradead.org/users/hch/dma-mapping:
  swiotlb: Omit total_used and used_hiwater if !CONFIG_DEBUG_FS
  swiotlb: track and report io_tlb_used high water marks in debugfs
  swiotlb: fix debugfs reporting of reserved memory pools
  swiotlb: relocate PageHighMem test away from rmem_swiotlb_setup
  of: address: always use dma_default_coherent for default coherency
  dma-mapping: provide CONFIG_ARCH_DMA_DEFAULT_COHERENT
  dma-mapping: provide a fallback dma_default_coherent
  dma-debug: Use %pa to format phys_addr_t
  dma-debug: add cacheline to user/kernel space dump messages
  dma-debug: small dma_debug_entry's comment and variable name updates
  dma-direct: cleanup parameters to dma_direct_optimal_gfp_mask
 2023-04-29 10:29:57 -07:00
Linus Torvalds
7d8d20191c Timekeeping and clocksource/event driver updates the second batch: 
- A trivial documentation fix in the timekeeping core
 
   - A really boring set of small fixes, enhancements and cleanups in the
     drivers code. No new clocksource/clockevent drivers for a change.
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Merge tag 'timers-core-2023-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull more timer updates from Thomas Gleixner:
 "Timekeeping and clocksource/event driver updates the second batch:

   - A trivial documentation fix in the timekeeping core

   - A really boring set of small fixes, enhancements and cleanups in
     the drivers code. No new clocksource/clockevent drivers for a
     change"

* tag 'timers-core-2023-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Fix references to nonexistent ktime_get_fast_ns()
  dt-bindings: timer: rockchip: Add rk3588 compatible
  dt-bindings: timer: rockchip: Drop superfluous rk3288 compatible
  clocksource/drivers/ti: Use of_property_read_bool() for boolean properties
  clocksource/drivers/timer-ti-dm: Fix finding alwon timer
  clocksource/drivers/davinci: Fix memory leak in davinci_timer_register when init fails
  clocksource/drivers/stm32-lp: Drop of_match_ptr for ID table
  clocksource/drivers/timer-ti-dm: Convert to platform remove callback returning void
  clocksource/drivers/timer-tegra186: Convert to platform remove callback returning void
  clocksource/drivers/timer-ti-dm: Improve error message in .remove
  clocksource/drivers/timer-stm32-lp: Mark driver as non-removable
  clocksource/drivers/sh_mtu2: Mark driver as non-removable
  clocksource/drivers/timer-ti-dm: Use of_address_to_resource()
  clocksource/drivers/timer-imx-gpt: Remove non-DT function
  clocksource/drivers/timer-mediatek: Split out CPUXGPT timers
  clocksource/drivers/exynos_mct: Explicitly return 0 for shared timer
 2023-04-29 10:24:30 -07:00
Linus Torvalds
8c1318e438 lsm/stable-6.4 PR 20230428 
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Merge tag 'lsm-pr-20230428' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull lsm fix from Paul Moore:
 "A single Documentation/LSM fix to update the LSM hook documentation
  references from lsm_hooks.h to security.c"

* tag 'lsm-pr-20230428' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  lsm: move hook comments docs to security/security.c
 2023-04-29 10:17:05 -07:00
Linus Torvalds
febf9ee3d2 integrity-v6.4 
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Merge tag 'integrity-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity update from Mimi Zohar:
 "Just one one bug fix. Other integrity changes are being upstreamed via
  the tpm and lsm trees"

* tag 'integrity-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  IMA: allow/fix UML builds
 2023-04-29 10:11:32 -07:00
Linus Torvalds
86e98ed15b cgroup changes for v6.4-rc1 
* cpuset changes including the fix for an incorrect interaction with CPU
   hotplug and an optimization.
 
 * Other doc and cosmetic changes.
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Merge tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - cpuset changes including the fix for an incorrect interaction with
   CPU hotplug and an optimization

 - Other doc and cosmetic changes

* tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  docs: cgroup-v1/cpusets: update libcgroup project link
  cgroup/cpuset: Minor updates to test_cpuset_prs.sh
  cgroup/cpuset: Include offline CPUs when tasks' cpumasks in top_cpuset are updated
  cgroup/cpuset: Skip task update if hotplug doesn't affect current cpuset
  cpuset: Clean up cpuset_node_allowed
  cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers
 2023-04-29 10:05:22 -07:00
Linus Torvalds
cd546fa325 workqueue changes for v6.4-rc1 
Mostly changes from Petr to improve warning and error reporting. Workqueue
 now reports more of the relevant failures with better context which should
 help debugging.
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Merge tag 'wq-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:
 "Mostly changes from Petr to improve warning and error reporting.

  Workqueue now reports more of the relevant failures with better
  context which should help debugging"

* tag 'wq-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Introduce show_freezable_workqueues
  workqueue: Print backtraces from CPUs with hung CPU bound workqueues
  workqueue: Warn when a rescuer could not be created
  workqueue: Interrupted create_worker() is not a repeated event
  workqueue: Warn when a new worker could not be created
  workqueue: Fix hung time report of worker pools
  workqueue: Simplify a pr_warn() call in wq_select_unbound_cpu()
  MAINTAINERS: Add workqueue_internal.h to the WORKQUEUE entry
 2023-04-29 09:48:52 -07:00
Mark Rutland
ec570320b0 locking/atomic: Correct (cmp)xchg() instrumentation 
All xchg() and cmpxchg() ops are atomic RMWs, but currently we
instrument these with instrument_atomic_write() rather than
instrument_atomic_read_write(), missing the read aspect.

Similarly, all try_cmpxchg() ops are non-atomic RMWs on *oldp, but we
instrument these accesses with instrument_atomic_write() rather than
instrument_read_write(), missing the read aspect and erroneously marking
these as atomic.

Fix the instrumentation for both points.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20230413160644.490976-1-mark.rutland@arm.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:09:31 +02:00
Uros Bizjak
5cd4c26841 locking/x86: Define arch_try_cmpxchg_local() 
Define target specific arch_try_cmpxchg_local(). This
definition overrides the generic arch_try_cmpxchg_local()
fallback definition and enables target-specific
implementation of try_cmpxchg_local().

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230405141710.3551-5-ubizjak@gmail.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:09:23 +02:00
Uros Bizjak
d994f2c8e2 locking/arch: Wire up local_try_cmpxchg() 
Implement target specific support for local_try_cmpxchg()
and local_cmpxchg() using typed C wrappers that call their
_local counterpart and provide additional checking of
their input arguments.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230405141710.3551-4-ubizjak@gmail.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:09:16 +02:00
Uros Bizjak
8fc4fddaf9 locking/generic: Wire up local{,64}_try_cmpxchg() 
Implement generic support for local{,64}_try_cmpxchg().

Redirect to the atomic_ family of functions when the target
does not provide its own local.h definitions.

For 64-bit targets, implement local64_try_cmpxchg and
local64_cmpxchg using typed C wrappers that call local_
family of functions and provide additional checking
of their input arguments.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230405141710.3551-3-ubizjak@gmail.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:09:09 +02:00
Uros Bizjak
e6ce9d7411 locking/atomic: Add generic try_cmpxchg{,64}_local() support 
Add generic support for try_cmpxchg{,64}_local() and their falbacks.

These provides the generic try_cmpxchg_local family of functions
from the arch_ prefixed version, also adding explicit instrumentation.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230405141710.3551-2-ubizjak@gmail.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:09:02 +02:00
Sebastian Andrzej Siewior
286deb7ec0 locking/rwbase: Mitigate indefinite writer starvation 
On PREEMPT_RT, rw_semaphore and rwlock_t locks are unfair to writers.
Readers can indefinitely acquire the lock unless the writer fully acquired
the lock, which might never happen if there is always a reader in the
critical section owning the lock.

Mel Gorman reported that since LTP-20220121 the dio_truncate test case
went from having 1 reader to having 16 readers and that number of readers
is sufficient to prevent the down_write ever succeeding while readers
exist. Eventually the test is killed after 30 minutes as a failure.

Mel proposed a timeout to limit how long a writer can be blocked until
the reader is forced into the slowpath.

Thomas argued that there is no added value by providing this timeout.  From
a PREEMPT_RT point of view, there are no critical rw_semaphore or rwlock_t
locks left where the reader must be preferred.

Mitigate indefinite writer starvation by forcing the READER into the
slowpath once the WRITER attempts to acquire the lock.

Reported-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Link: https://lore.kernel.org/877cwbq4cq.ffs@tglx
Link: https://lore.kernel.org/r/20230321161140.HMcQEhHb@linutronix.de
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:08:52 +02:00
Andrzej Hajda
068550631f locking/arch: Rename all internal __xchg() names to __arch_xchg() 
Decrease the probability of this internal facility to be used by
driver code.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> [riscv]
Link: https://lore.kernel.org/r/20230118154450.73842-1-andrzej.hajda@intel.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
 2023-04-29 09:08:44 +02:00
Christophe JAILLET
10f67d1fd2 watchdog: dw_wdt: Simplify clk management 
Use devm_clk_get_enabled() instead of hand-writing it.
This saves some LoC.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/f6094c55cacf9637d835cd49290d9e888faeb0f7.1682491863.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
 2023-04-29 08:08:41 +02:00
Christophe JAILLET
7f53907506 watchdog: dw_wdt: Fix the error handling path of dw_wdt_drv_probe() 
The commit in Fixes has only updated the remove function and missed the
error handling path of the probe.

Add the missing reset_control_assert() call.

Fixes: 65a3b6935d ("watchdog: dw_wdt: get reset lines from dt")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/fbb650650bbb33a8fa2fd028c23157bedeed50e1.1682491863.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
 2023-04-29 08:08:41 +02:00
Xingyu Wu
b23c1f807c watchdog: starfive: Fix the warning of starfive_wdt_match 
Drop the function of of_match_ptr() to fix the warning of unused variable
'starfive_wdt_match'.

Fixes: db728ea9c7 ("drivers: watchdog: Add StarFive Watchdog driver")
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230427074400.55380-1-xingyu.wu@starfivetech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
 2023-04-29 08:08:41 +02:00
Xingyu Wu
90211b5882 watchdog: starfive: Fix the probe return error if PM and early_enable are both disabled 
When the starfive watchdog driver uses 'pm_runtime_put_sync()' as probe
return value at last and 'early_enable' is disabled, it could return the
error '-ENOSYS' if the CONFIG_PM is disabled, but the driver should works
normally.

Drop the 'return' and keep the 'pm_runtime_put_sync()', but do not use it
as the return value.

Fixes: db728ea9c7 ("drivers: watchdog: Add StarFive Watchdog driver")
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230426031216.37981-1-xingyu.wu@starfivetech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
 2023-04-29 08:08:40 +02:00
Steve French
9be11a6931 cifs: update internal module version number for cifs.ko 
From 2.42 to 2.43

Signed-off-by: Steve French <stfrench@microsoft.com>
 2023-04-28 22:50:42 -05:00
Steve French
2fe187dca6 smb3: move some common open context structs to smbfs_common 
create durable and create durable reconnect context and the maximal
access create context struct definitions can be put in common code in
smbfs_common

Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2023-04-28 22:50:32 -05:00
Steve French
1149c8467d smb3: make query_on_disk_id open context consistent and move to common code 
cifs and ksmbd were using a slightly different version of the query_on_disk_id
struct which could be confusing. Use the ksmbd version of this struct, and
move it to common code.

Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2023-04-28 22:50:16 -05:00