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Pull vfio updates from Alex Williamson:
- Extend vfio-pci 8-byte read/write support to include archs defining
CONFIG_GENERIC_IOMAP, such as x86, and remove now extraneous #ifdefs
around 64-bit accessors (Ramesh Thomas)
- Update vfio-pci shadow ROM handling and allow cached ROM from setup
data to be exposed as a functional ROM BAR region when available
(Yunxiang Li)
- Update nvgrace-gpu vfio-pci variant driver for new Grace Blackwell
hardware, conditionalizing the uncached BAR workaround for previous
generation hardware based on the presence of a flag in a new DVSEC
capability, and include a delay during probe for link training to
complete, a new requirement for GB devices (Ankit Agrawal)
* tag 'vfio-v6.14-rc1' of https://github.com/awilliam/linux-vfio:
vfio/nvgrace-gpu: Add GB200 SKU to the devid table
vfio/nvgrace-gpu: Check the HBM training and C2C link status
vfio/nvgrace-gpu: Expose the blackwell device PF BAR1 to the VM
vfio/nvgrace-gpu: Read dvsec register to determine need for uncached resmem
vfio/platform: check the bounds of read/write syscalls
vfio/pci: Expose setup ROM at ROM bar when needed
vfio/pci: Remove shadow ROM specific code paths
vfio/pci: Remove #ifdef iowrite64 and #ifdef ioread64
vfio/pci: Enable iowrite64 and ioread64 for vfio pci
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the big set of driver core and debugfs updates for 6.14-rc1.
Included in here is a bunch of driver core, PCI, OF, and platform rust
bindings (all acked by the different subsystem maintainers), hence the
merge conflict with the rust tree, and some driver core api updates to
mark things as const, which will also require some fixups due to new
stuff coming in through other trees in this merge window.
There are also a bunch of debugfs updates from Al, and there is at
least one user that does have a regression with these, but Al is
working on tracking down the fix for it. In my use (and everyone
else's linux-next use), it does not seem like a big issue at the
moment.
Here's a short list of the things in here:
- driver core rust bindings for PCI, platform, OF, and some i/o
functions.
We are almost at the "write a real driver in rust" stage now,
depending on what you want to do.
- misc device rust bindings and a sample driver to show how to use
them
- debugfs cleanups in the fs as well as the users of the fs api for
places where drivers got it wrong or were unnecessarily doing
things in complex ways.
- driver core const work, making more of the api take const * for
different parameters to make the rust bindings easier overall.
- other small fixes and updates
All of these have been in linux-next with all of the aforementioned
merge conflicts, and the one debugfs issue, which looks to be resolved
"soon""
* tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
rust: device: Use as_char_ptr() to avoid explicit cast
rust: device: Replace CString with CStr in property_present()
devcoredump: Constify 'struct bin_attribute'
devcoredump: Define 'struct bin_attribute' through macro
rust: device: Add property_present()
saner replacement for debugfs_rename()
orangefs-debugfs: don't mess with ->d_name
octeontx2: don't mess with ->d_parent or ->d_parent->d_name
arm_scmi: don't mess with ->d_parent->d_name
slub: don't mess with ->d_name
sof-client-ipc-flood-test: don't mess with ->d_name
qat: don't mess with ->d_name
xhci: don't mess with ->d_iname
mtu3: don't mess wiht ->d_iname
greybus/camera - stop messing with ->d_iname
mediatek: stop messing with ->d_iname
netdevsim: don't embed file_operations into your structs
b43legacy: make use of debugfs_get_aux()
b43: stop embedding struct file_operations into their objects
carl9170: stop embedding file_operations into their objects
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
"Here is the tty/serial driver set of changes for 6.14-rc1. Nothing
major in here, it was delayed a bit due to a regression found in
linux-next which has now been reverted and verified that it is fixed.
Other than the reverts, highlights include:
- 8250 work to get the nbcon mode working (partially reverted)
- altera_jtaguart minor fixes
- fsl_lpuart minor updates
- sh-sci driver minor updatesa
- other tiny driver updates and cleanups
All of these have been in linux-next for a while, and now with no
reports of problems (thanks to the reverts)"
* tag 'tty-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (44 commits)
Revert "serial: 8250: Switch to nbcon console"
Revert "serial: 8250: Revert "drop lockdep annotation from serial8250_clear_IER()""
serial: sh-sci: Increment the runtime usage counter for the earlycon device
serial: sh-sci: Clean sci_ports[0] after at earlycon exit
serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use
serial: sh-sci: Move runtime PM enable to sci_probe_single()
serial: sh-sci: Drop __initdata macro for port_cfg
serial: kgdb_nmi: Remove unused knock code
tty: Permit some TIOCL_SETSEL modes without CAP_SYS_ADMIN
tty: xilinx_uartps: split sysrq handling
serial: 8250: Revert "drop lockdep annotation from serial8250_clear_IER()"
serial: 8250: Switch to nbcon console
serial: 8250: Provide flag for IER toggling for RS485
serial: 8250: Use high-level writing function for FIFO
serial: 8250: Use frame time to determine timeout
serial: 8250: Adjust the timeout for FIFO mode
tty: atmel_serial: Use of_property_present() for non-boolean properties
serial: sc16is7xx: Add polling mode if no IRQ pin is available
dt-bindings: serial: sc16is7xx: Add description for polling mode
tty: serial: atmel: make it selectable for ARCH_LAN969X
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull KVM/arm64 updates from Will Deacon:
"New features:
- Support for non-protected guest in protected mode, achieving near
feature parity with the non-protected mode
- Support for the EL2 timers as part of the ongoing NV support
- Allow control of hardware tracing for nVHE/hVHE
Improvements, fixes and cleanups:
- Massive cleanup of the debug infrastructure, making it a bit less
awkward and definitely easier to maintain. This should pave the way
for further optimisations
- Complete rewrite of pKVM's fixed-feature infrastructure, aligning
it with the rest of KVM and making the code easier to follow
- Large simplification of pKVM's memory protection infrastructure
- Better handling of RES0/RES1 fields for memory-backed system
registers
- Add a workaround for Qualcomm's Snapdragon X CPUs, which suffer
from a pretty nasty timer bug
- Small collection of cleanups and low-impact fixes"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (87 commits)
arm64/sysreg: Get rid of TRFCR_ELx SysregFields
KVM: arm64: nv: Fix doc header layout for timers
KVM: arm64: nv: Apply RESx settings to sysreg reset values
KVM: arm64: nv: Always evaluate HCR_EL2 using sanitising accessors
KVM: arm64: Fix selftests after sysreg field name update
coresight: Pass guest TRFCR value to KVM
KVM: arm64: Support trace filtering for guests
KVM: arm64: coresight: Give TRBE enabled state to KVM
coresight: trbe: Remove redundant disable call
arm64/sysreg/tools: Move TRFCR definitions to sysreg
tools: arm64: Update sysreg.h header files
KVM: arm64: Drop pkvm_mem_transition for host/hyp donations
KVM: arm64: Drop pkvm_mem_transition for host/hyp sharing
KVM: arm64: Drop pkvm_mem_transition for FF-A
KVM: arm64: Explicitly handle BRBE traps as UNDEFINED
KVM: arm64: vgic: Use str_enabled_disabled() in vgic_v3_probe()
arm64: kvm: Introduce nvhe stack size constants
KVM: arm64: Fix nVHE stacktrace VA bits mask
KVM: arm64: Fix FEAT_MTE in pKVM
Documentation: Update the behaviour of "kvm-arm.mode"
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Migrate to the generic rule for built-in DTB
- Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled
- Derive timer max_delta from PRCFG1's timer_bits
- Correct the cacheinfo sharing information
- Add pgprot_nx() implementation
- Add debugfs entries to switch SFB/TSO state
- Change the maximum number of watchpoints
- Some bug fixes and other small changes
* tag 'loongarch-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: Extend the maximum number of watchpoints
LoongArch: Change 8 to 14 for LOONGARCH_MAX_{BRP,WRP}
LoongArch: Add debugfs entries to switch SFB/TSO state
LoongArch: Fix warnings during S3 suspend
LoongArch: Adjust SETUP_SLEEP and SETUP_WAKEUP
LoongArch: Refactor bug_handler() implementation
LoongArch: Add pgprot_nx() implementation
LoongArch: Correct the __switch_to() prototype in comments
LoongArch: Correct the cacheinfo sharing information
LoongArch: Derive timer max_delta from PRCFG1's timer_bits
LoongArch: Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled
LoongArch: Migrate to the generic rule for built-in DTB
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Pull drm fixes from Simona Vetter:
"cgroup:
- fix Koncfig fallout from new dmem controller
Driver Changes:
- v3d NULL pointer regression fix in fence signalling race
- virtio: uaf in dma_buf free path
- xlnx: fix kerneldoc
- bochs: fix double-free on driver removal
- zynqmp: add missing locking to DP bridge driver
- amdgpu fixes all over:
- documentation, display, sriov, various hw block drivers
- use drm/sched helper
- mark some debug module options as unsafe
- amdkfd: mark some debug module options as unsafe, trap handler
updates, fix partial migration handling
DRM core:
- fix fbdev Kconfig select rules, improve tiled-based display
support"
* tag 'drm-next-2025-01-27' of https://gitlab.freedesktop.org/drm/kernel: (40 commits)
drm/amd/display: Optimize cursor position updates
drm/amd/display: Add hubp cache reset when powergating
drm/amd/amdgpu: Enable scratch data dump for mes 12
drm/amd: Clarify kdoc for amdgpu.gttsize
drm/amd/amdgpu: Prevent null pointer dereference in GPU bandwidth calculation
drm/amd/display: Fix error pointers in amdgpu_dm_crtc_mem_type_changed
drm/amdgpu: fix ring timeout issue in gfx10 sr-iov environment
drm/amd/pm: Fix smu v13.0.6 caps initialization
drm/amd/pm: Refactor SMU 13.0.6 SDMA reset firmware version checks
revert "drm/amdgpu/pm: add definition PPSMC_MSG_ResetSDMA2"
revert "drm/amdgpu/pm: Implement SDMA queue reset for different asic"
drm/amd/pm: Add capability flags for SMU v13.0.6
drm/amd/display: fix SUBVP DC_DEBUG_MASK documentation
drm/amd/display: fix CEC DC_DEBUG_MASK documentation
drm/amdgpu: fix the PCIe lanes reporting in the INFO IOCTL
drm/amdgpu: cache gpu pcie link width
drm/amd/display: mark static functions noinline_for_stack
drm/amdkfd: Clear MODE.VSKIP in gfx9 trap handler
drm/amdgpu: Refine ip detection log message
drm/amdgpu: Add handler for SDMA context empty
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mikulas Patocka:
- fix a spelling error in dm-raid
- change kzalloc to kcalloc
- remove useless test in alloc_multiple_bios
- disable REQ_NOWAIT for flushes
- dm-transaction-manager: use red-black trees instead of linear lists
- atomic writes support for dm-linear, dm-stripe and dm-mirror
- dm-crypt: code cleanups and two bugfixes
* tag 'for-6.14/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm-crypt: track tag_offset in convert_context
dm-crypt: don't initialize cc_sector again
dm-crypt: don't update io->sector after kcryptd_crypt_write_io_submit()
dm-crypt: use bi_sector in bio when initialize integrity seed
dm-crypt: fully initialize clone->bi_iter in crypt_alloc_buffer()
dm-crypt: set atomic as false when calling crypt_convert() in kworker
dm-mirror: Support atomic writes
dm-io: Warn on creating multiple atomic write bios for a region
dm-stripe: Enable atomic writes
dm-linear: Enable atomic writes
dm: Ensure cloned bio is same length for atomic write
dm-table: atomic writes support
dm-transaction-manager: use red-black trees instead of linear lists
dm: disable REQ_NOWAIT for flushes
dm: remove useless test in alloc_multiple_bios
dm: change kzalloc to kcalloc
dm raid: fix spelling errors in raid_ctr()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc/IIO driver updates from Greg KH:
"Here is the "big" set of char/misc/iio and other smaller driver
subsystem updates for 6.14-rc1. Loads of different things in here this
development cycle, highlights are:
- ntsync "driver" to handle Windows locking types enabling Wine to
work much better on many workloads (i.e. games). The driver
framework was in 6.13, but now it's enabled and fully working
properly. Should make many SteamOS users happy. Even comes with
tests!
- Large IIO driver updates and bugfixes
- FPGA driver updates
- Coresight driver updates
- MHI driver updates
- PPS driver updatesa
- const bin_attribute reworking for many drivers
- binder driver updates
- smaller driver updates and fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
ntsync: Fix reference leaks in the remaining create ioctls.
spmi: hisi-spmi-controller: Drop duplicated OF node assignment in spmi_controller_probe()
spmi: Set fwnode for spmi devices
ntsync: fix a file reference leak in drivers/misc/ntsync.c
scripts/tags.sh: Don't tag usages of DECLARE_BITMAP
dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
interconnect: sm8750: Add missing const to static qcom_icc_desc
memstick: core: fix kernel-doc notation
intel_th: core: fix kernel-doc warnings
binder: log transaction code on failure
iio: dac: ad3552r-hs: clear reset status flag
iio: dac: ad3552r-common: fix ad3541/2r ranges
iio: chemical: bme680: Fix uninitialized variable in __bme680_read_raw()
misc: fastrpc: Fix copy buffer page size
misc: fastrpc: Fix registered buffer page address
misc: fastrpc: Deregister device nodes properly in error scenarios
nvmem: core: improve range check for nvmem_cell_write()
nvmem: qcom-spmi-sdam: Set size in struct nvmem_config
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the pretty small staging driver tree update for 6.14-rc1. Not
much happened this development cycle:
- deleted some unused ioctl code from the rtl8723bs driver
- gpib driver cleanups and fixes
- other tiny minor coding style fixes.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (38 commits)
staging: gpib: Agilent usb code cleanup
staging: gpib: Fix NULL pointer dereference in detach
staging: gpib: Fix inadvertent negative shift
staging: gpib: fix prefixing 0x with decimal output
staging: gpib: Use C99 syntax and make static
staging: gpib: Avoid plain integers as NULL pointers
staging: gpib: Use __user for user space pointers
staging: gpib: Use __iomem attribute for io addresses
staging: gpib: Add missing mutex unlock in ni usb driver
staging: gpib: Add missing mutex unlock in agilent usb driver
staging: gpib: Modernize gpib_interface_t initialization and make static
staging: gpib: Remove commented-out debug code
staging: rtl8723bs: Remove ioctl interface
staging: gpib: tnt4882: Handle gpib_register_driver() errors
staging: gpib: pc2: Handle gpib_register_driver() errors
staging: gpib: ni_usb: Handle gpib_register_driver() errors
staging: gpib: lpvo_usb: Return error value from gpib_register_driver()
staging: gpib: ines: Handle gpib_register_driver() errors
staging: gpib: hp_82341: Handle gpib_register_driver() errors
staging: gpib: hp_82335: Return error value from gpib_register_driver()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt driver updates from Greg KH:
"Here is the USB and Thunderbolt driver updates for 6.14-rc1. Nothing
huge in here, just lots of new hardware support and updates for
existing drivers. Changes here are:
- big gadget f_tcm driver update
- other gadget driver updates and fixes
- thunderbolt driver updates for new hardware and capabilities and
lots more debugging functionality to handle it when things aren't
working well.
- xhci driver updates
- new USB-serial device updates
- typec driver updates, including a chrome platform driver (acked by
the subsystem maintainers)
- other small driver updates
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (123 commits)
usb: hcd: Bump local buffer size in rh_string()
Revert "usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null"
usb: typec: tcpci: Prevent Sink disconnection before vPpsShutdown in SPR PPS
usb: xhci: tegra: Fix OF boolean read warning
usb: host: xhci-plat: add support compatible ID PNP0D15
usb: typec: ucsi: Add a macro definition for UCSI v1.0
usb: dwc3: core: Defer the probe until USB power supply ready
usbip: Correct format specifier for seqnum from %d to %u
usbip: Fix seqnum sign extension issue in vhci_tx_urb
dt-bindings: usb: snps,dwc3: Split core description
usb: quirks: Add NO_LPM quirk for TOSHIBA TransMemory-Mx device
usb: dwc3: gadget: Reinitiate stream for all host NoStream behavior
USB: Use str_enable_disable-like helpers
USB: gadget: Use str_enable_disable-like helpers
USB: phy: Use str_enable_disable-like helpers
USB: typec: Use str_enable_disable-like helpers
USB: host: Use str_enable_disable-like helpers
USB: Replace own str_plural with common one
USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()
usb: phy: Remove API devm_usb_put_phy()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm fixes from Uwe Kleine-König:
"Two fixes.
Conor Dooley found and fixed a problem in the pwm-microchip-core
driver that existed since the driver's birth in v6.5-rc1. It's about a
corner case that only happens if two pwm devices of the same chip are
set to the same long period.
The other problem is about the new pwm API that currently is only
supported by two hardware drivers. The fix prevents a NULL pointer
exception if one of the new functions is called for a pwm device with
a driver that only provides the old callbacks"
* tag 'pwm/for-6.14-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
pwm: Ensure callbacks exist before calling them
pwm: microchip-core: fix incorrect comparison with max period
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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:
- introduce power supply extensions, which allows adding properties
to a power supply device from a separate driver. This will be used
initially to extend the generic ACPI charger/battery driver with
vendor extensions for charge thresholds.
- convert all drivers from power_supply_for_each_device to new
power_supply_for_each_psy(), which avoids lots of casting being
done in the drivers.
- avoid LED trigger like values in uevent for
POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR
- introduce POWER_SUPPLY_PROP_CHARGE_TYPES, which is similar to the
POWER_SUPPLY_PROP_CHARGE_TYPE property, but also lists the
available options on the specific platform
Power-supply drivers
- dell-laptop: use new power_supply_charge_types_show/_parse helpers
- stc3117: new driver for equally named fuel gauge chip
- bq24190: add support for new POWER_SUPPLY_PROP_CHARGE_TYPES
- bq24190: add BQ24297 support
- bq27xxx: add voltage min design for bq27000/bq27200
- cros_charge-control: convert to new power supply extension API
- multiple drivers: constify 'struct bin_attribute'
- ds2782: convert to device managed resources
- max1720x: add charge full property
- max1720x: support extra thermistor temperatures
- max17042: add max77705 support
- ip5xxx-power: add support for IP5306
- ltc4162-l-charger: add ltc4162-f/s and ltc4015 support
- gpio-charger: support for default charge current limit
- misc small cleanups and fixes
Reset drivers:
- at91-poweroff: add sam9x7 support"
* tag 'for-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (77 commits)
power: supply: max1720x: add support for reading internal and thermistor temperatures
power: supply: ltc4162l: Use GENMASK macro in bitmask operation
power: supply: max17042: add max77705 fuel gauge support
dt-bindings: power: supply: max17042: add max77705 support
power: supply: add undervoltage health status property
power: supply: max17042: add platform driver variant
power: supply: max17042: make interrupt shared
power: reset: keystone: Use syscon_regmap_lookup_by_phandle_args
power: supply: Use str_enable_disable-like helpers
platform/x86: dell-laptop: Use power_supply_charge_types_show/_parse() helpers
power: supply: bq2415x_charger: Immediately reschedule delayed work on notifier events
power: supply: Add STC3117 fuel gauge unit driver
dt-bindings: power: supply: Add STC3117 Fuel Gauge
power: supply: ug3105_battery: Let the core handle POWER_SUPPLY_PROP_TECHNOLOGY
power: supply: gpio-charger: add support for default charge current limit
dt-bindings: power: supply: gpio-charger: add support for default charge current limit
power: supply: Use power_supply_external_power_changed() in __power_supply_changed_work()
power: supply: core: fix build of extension sysfs group if CONFIG_SYSFS=n
power: supply: bq2415x_charger: report charging state changes to userspace
bq27xxx: add voltage min design for bq27000 and bq27200
...
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Pull virtio updates from Michael Tsirkin:
"A small number of improvements all over the place:
- vdpa/octeon support for multiple interrupts
- virtio-pci support for error recovery
- vp_vdpa support for notification with data
- vhost/net fix to set num_buffers for spec compliance
- virtio-mem now works with kdump on s390
And small cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (23 commits)
virtio_blk: Add support for transport error recovery
virtio_pci: Add support for PCIe Function Level Reset
vhost/net: Set num_buffers for virtio 1.0
vdpa/octeon_ep: read vendor-specific PCI capability
virtio-pci: define type and header for PCI vendor data
vdpa/octeon_ep: handle device config change events
vdpa/octeon_ep: enable support for multiple interrupts per device
vdpa: solidrun: Replace deprecated PCI functions
s390/kdump: virtio-mem kdump support (CONFIG_PROC_VMCORE_DEVICE_RAM)
virtio-mem: support CONFIG_PROC_VMCORE_DEVICE_RAM
virtio-mem: remember usable region size
virtio-mem: mark device ready before registering callbacks in kdump mode
fs/proc/vmcore: introduce PROC_VMCORE_DEVICE_RAM to detect device RAM ranges in 2nd kernel
fs/proc/vmcore: factor out freeing a list of vmcore ranges
fs/proc/vmcore: factor out allocating a vmcore range and adding it to a list
fs/proc/vmcore: move vmcore definitions out of kcore.h
fs/proc/vmcore: prefix all pr_* with "vmcore:"
fs/proc/vmcore: disallow vmcore modifications while the vmcore is open
fs/proc/vmcore: replace vmcoredd_mutex by vmcore_mutex
fs/proc/vmcore: convert vmcore_cb_lock into vmcore_mutex
...
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NVIDIA is productizing the new Grace Blackwell superchip
SKU bearing device ID 0x2941.
Add the SKU devid to nvgrace_gpu_vfio_pci_table.
CC: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20250124183102.3976-5-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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In contrast to Grace Hopper systems, the HBM training has been moved
out of the UEFI on the Grace Blackwell systems. This reduces the system
bootup time significantly.
The onus of checking whether the HBM training has completed thus falls
on the module.
The HBM training status can be determined from a BAR0 register.
Similarly, another BAR0 register exposes the status of the CPU-GPU
chip-to-chip (C2C) cache coherent interconnect.
Based on testing, 30s is determined to be sufficient to ensure
initialization completion on all the Grace based systems. Thus poll
these register and check for 30s. If the HBM training is not complete
or if the C2C link is not ready, fail the probe.
While the time is not required on Grace Hopper systems, it is
beneficial to make the check to ensure the device is in an
expected state. Hence keeping it generalized to both the generations.
Ensure that the BAR0 is enabled before accessing the registers.
CC: Alex Williamson <alex.williamson@redhat.com>
CC: Kevin Tian <kevin.tian@intel.com>
CC: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20250124183102.3976-4-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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There is a HW defect on Grace Hopper (GH) to support the
Multi-Instance GPU (MIG) feature [1] that necessiated the presence
of a 1G region carved out from the device memory and mapped as
uncached. The 1G region is shown as a fake BAR (comprising region 2 and 3)
to workaround the issue.
The Grace Blackwell systems (GB) differ from GH systems in the following
aspects:
1. The aforementioned HW defect is fixed on GB systems.
2. There is a usable BAR1 (region 2 and 3) on GB systems for the
GPUdirect RDMA feature [2].
This patch accommodate those GB changes by showing the 64b physical
device BAR1 (region2 and 3) to the VM instead of the fake one. This
takes care of both the differences.
Moreover, the entire device memory is exposed on GB as cacheable to
the VM as there is no carveout required.
Link: https://www.nvidia.com/en-in/technologies/multi-instance-gpu/ [1]
Link: https://docs.nvidia.com/cuda/gpudirect-rdma/ [2]
Cc: Kevin Tian <kevin.tian@intel.com>
CC: Jason Gunthorpe <jgg@nvidia.com>
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20250124183102.3976-3-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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NVIDIA's recently introduced Grace Blackwell (GB) Superchip is a
continuation with the Grace Hopper (GH) superchip that provides a
cache coherent access to CPU and GPU to each other's memory with
an internal proprietary chip-to-chip cache coherent interconnect.
There is a HW defect on GH systems to support the Multi-Instance
GPU (MIG) feature [1] that necessiated the presence of a 1G region
with uncached mapping carved out from the device memory. The 1G
region is shown as a fake BAR (comprising region 2 and 3) to
workaround the issue. This is fixed on the GB systems.
The presence of the fix for the HW defect is communicated by the
device firmware through the DVSEC PCI config register with ID 3.
The module reads this to take a different codepath on GB vs GH.
Scan through the DVSEC registers to identify the correct one and use
it to determine the presence of the fix. Save the value in the device's
nvgrace_gpu_pci_core_device structure.
Link: https://www.nvidia.com/en-in/technologies/multi-instance-gpu/ [1]
CC: Jason Gunthorpe <jgg@nvidia.com>
CC: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20250124183102.3976-2-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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Add support for proper cleanup and re-initialization of virtio-blk devices
during transport reset error recovery flow.
This enhancement includes:
- Pre-reset handler (reset_prepare) to perform device-specific cleanup
- Post-reset handler (reset_done) to re-initialize the device
These changes allow the device to recover from various reset scenarios,
ensuring proper functionality after a reset event occurs.
Without this implementation, the device cannot properly recover from
resets, potentially leading to undefined behavior or device malfunction.
This feature has been tested using PCI transport with Function Level
Reset (FLR) as an example reset mechanism. The reset can be triggered
manually via sysfs (echo 1 > /sys/bus/pci/devices/$PCI_ADDR/reset).
Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Message-Id: <1732690652-3065-3-git-send-email-israelr@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Implement support for Function Level Reset (FLR) in virtio_pci devices.
This change adds reset_prepare and reset_done callbacks, allowing
drivers to properly handle FLR operations.
Without this patch, performing and recovering from an FLR is not possible
for virtio_pci devices. This implementation ensures proper FLR handling
and recovery for both physical and virtual functions.
The device reset can be triggered in case of error or manually via
sysfs:
echo 1 > /sys/bus/pci/devices/$PCI_ADDR/reset
Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Message-Id: <1732690652-3065-2-git-send-email-israelr@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The specification says the device MUST set num_buffers to 1 if
VIRTIO_NET_F_MRG_RXBUF has not been negotiated.
Fixes: 41e3e42108bc ("vhost/net: enable virtio 1.0")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240915-v1-v1-1-f10d2cb5e759@daynix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-4-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The first interrupt of the device is used to notify the host about
device configuration changes, such as link status updates. The ISR
configuration area is updated to indicate a config change event when
triggered.
Signed-off-by: Satha Rao <skoteshwar@marvell.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-2-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Updated the driver to utilize all the MSI-X interrupt vectors supported
by each OCTEON endpoint VF, instead of relying on a single vector.
Enabling more interrupts allows packets from multiple rings to be
distributed across multiple cores, improving parallelism and
performance.
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-1-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The PCI functions
pcim_iomap_regions()
pcim_iounmap_regions()
pcim_iomap_table()
have been deprecated by the PCI subsystem.
Replace these functions with their successors pcim_iomap_region() and
pcim_iounmap_region().
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Message-Id: <20241219094428.21511-2-phasta@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
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Let's implement the get_device_ram() vmcore callback, so
architectures that select NEED_PROC_VMCORE_NEED_DEVICE_RAM, like s390
soon, can include that memory in a crash dump.
Merge ranges, and process ranges that might contain a mixture of plugged
and unplugged, to reduce the total number of ranges.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-12-david@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Let's remember the usable region size, which will be helpful in kdump
mode next.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-11-david@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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After the callbacks are registered we may immediately get a callback. So
mark the device ready before registering the callbacks.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-10-david@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"The various patchsets are summarized below. Plus of course many
indivudual patches which are described in their changelogs.
- "Allocate and free frozen pages" from Matthew Wilcox reorganizes
the page allocator so we end up with the ability to allocate and
free zero-refcount pages. So that callers (ie, slab) can avoid a
refcount inc & dec
- "Support large folios for tmpfs" from Baolin Wang teaches tmpfs to
use large folios other than PMD-sized ones
- "Fix mm/rodata_test" from Petr Tesarik performs some maintenance
and fixes for this small built-in kernel selftest
- "mas_anode_descend() related cleanup" from Wei Yang tidies up part
of the mapletree code
- "mm: fix format issues and param types" from Keren Sun implements a
few minor code cleanups
- "simplify split calculation" from Wei Yang provides a few fixes and
a test for the mapletree code
- "mm/vma: make more mmap logic userland testable" from Lorenzo
Stoakes continues the work of moving vma-related code into the
(relatively) new mm/vma.c
- "mm/page_alloc: gfp flags cleanups for alloc_contig_*()" from David
Hildenbrand cleans up and rationalizes handling of gfp flags in the
page allocator
- "readahead: Reintroduce fix for improper RA window sizing" from Jan
Kara is a second attempt at fixing a readahead window sizing issue.
It should reduce the amount of unnecessary reading
- "synchronously scan and reclaim empty user PTE pages" from Qi Zheng
addresses an issue where "huge" amounts of pte pagetables are
accumulated:
https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/
Qi's series addresses this windup by synchronously freeing PTE
memory within the context of madvise(MADV_DONTNEED)
- "selftest/mm: Remove warnings found by adding compiler flags" from
Muhammad Usama Anjum fixes some build warnings in the selftests
code when optional compiler warnings are enabled
- "mm: don't use __GFP_HARDWALL when migrating remote pages" from
David Hildenbrand tightens the allocator's observance of
__GFP_HARDWALL
- "pkeys kselftests improvements" from Kevin Brodsky implements
various fixes and cleanups in the MM selftests code, mainly
pertaining to the pkeys tests
- "mm/damon: add sample modules" from SeongJae Park enhances DAMON to
estimate application working set size
- "memcg/hugetlb: Rework memcg hugetlb charging" from Joshua Hahn
provides some cleanups to memcg's hugetlb charging logic
- "mm/swap_cgroup: remove global swap cgroup lock" from Kairui Song
removes the global swap cgroup lock. A speedup of 10% for a
tmpfs-based kernel build was demonstrated
- "zram: split page type read/write handling" from Sergey Senozhatsky
has several fixes and cleaups for zram in the area of
zram_write_page(). A watchdog softlockup warning was eliminated
- "move pagetable_*_dtor() to __tlb_remove_table()" from Kevin
Brodsky cleans up the pagetable destructor implementations. A rare
use-after-free race is fixed
- "mm/debug: introduce and use VM_WARN_ON_VMG()" from Lorenzo Stoakes
simplifies and cleans up the debugging code in the VMA merging
logic
- "Account page tables at all levels" from Kevin Brodsky cleans up
and regularizes the pagetable ctor/dtor handling. This results in
improvements in accounting accuracy
- "mm/damon: replace most damon_callback usages in sysfs with new
core functions" from SeongJae Park cleans up and generalizes
DAMON's sysfs file interface logic
- "mm/damon: enable page level properties based monitoring" from
SeongJae Park increases the amount of information which is
presented in response to DAMOS actions
- "mm/damon: remove DAMON debugfs interface" from SeongJae Park
removes DAMON's long-deprecated debugfs interfaces. Thus the
migration to sysfs is completed
- "mm/hugetlb: Refactor hugetlb allocation resv accounting" from
Peter Xu cleans up and generalizes the hugetlb reservation
accounting
- "mm: alloc_pages_bulk: small API refactor" from Luiz Capitulino
removes a never-used feature of the alloc_pages_bulk() interface
- "mm/damon: extend DAMOS filters for inclusion" from SeongJae Park
extends DAMOS filters to support not only exclusion (rejecting),
but also inclusion (allowing) behavior
- "Add zpdesc memory descriptor for zswap.zpool" from Alex Shi
introduces a new memory descriptor for zswap.zpool that currently
overlaps with struct page for now. This is part of the effort to
reduce the size of struct page and to enable dynamic allocation of
memory descriptors
- "mm, swap: rework of swap allocator locks" from Kairui Song redoes
and simplifies the swap allocator locking. A speedup of 400% was
demonstrated for one workload. As was a 35% reduction for kernel
build time with swap-on-zram
- "mm: update mips to use do_mmap(), make mmap_region() internal"
from Lorenzo Stoakes reworks MIPS's use of mmap_region() so that
mmap_region() can be made MM-internal
- "mm/mglru: performance optimizations" from Yu Zhao fixes a few
MGLRU regressions and otherwise improves MGLRU performance
- "Docs/mm/damon: add tuning guide and misc updates" from SeongJae
Park updates DAMON documentation
- "Cleanup for memfd_create()" from Isaac Manjarres does that thing
- "mm: hugetlb+THP folio and migration cleanups" from David
Hildenbrand provides various cleanups in the areas of hugetlb
folios, THP folios and migration
- "Uncached buffered IO" from Jens Axboe implements the new
RWF_DONTCACHE flag which provides synchronous dropbehind for
pagecache reading and writing. To permite userspace to address
issues with massive buildup of useless pagecache when
reading/writing fast devices
- "selftests/mm: virtual_address_range: Reduce memory" from Thomas
Weißschuh fixes and optimizes some of the MM selftests"
* tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
mm/compaction: fix UBSAN shift-out-of-bounds warning
s390/mm: add missing ctor/dtor on page table upgrade
kasan: sw_tags: use str_on_off() helper in kasan_init_sw_tags()
tools: add VM_WARN_ON_VMG definition
mm/damon/core: use str_high_low() helper in damos_wmark_wait_us()
seqlock: add missing parameter documentation for raw_seqcount_try_begin()
mm/page-writeback: consolidate wb_thresh bumping logic into __wb_calc_thresh
mm/page_alloc: remove the incorrect and misleading comment
zram: remove zcomp_stream_put() from write_incompressible_page()
mm: separate move/undo parts from migrate_pages_batch()
mm/kfence: use str_write_read() helper in get_access_type()
selftests/mm/mkdirty: fix memory leak in test_uffdio_copy()
kasan: hw_tags: Use str_on_off() helper in kasan_init_hw_tags()
selftests/mm: virtual_address_range: avoid reading from VM_IO mappings
selftests/mm: vm_util: split up /proc/self/smaps parsing
selftests/mm: virtual_address_range: unmap chunks after validation
selftests/mm: virtual_address_range: mmap() without PROT_WRITE
selftests/memfd/memfd_test: fix possible NULL pointer dereference
mm: add FGP_DONTCACHE folio creation flag
mm: call filemap_fdatawrite_range_kick() after IOCB_DONTCACHE issue
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
"Mainly individually changelogged singleton patches. The patch series
in this pull are:
- "lib min_heap: Improve min_heap safety, testing, and documentation"
from Kuan-Wei Chiu provides various tightenings to the min_heap
library code
- "xarray: extract __xa_cmpxchg_raw" from Tamir Duberstein preforms
some cleanup and Rust preparation in the xarray library code
- "Update reference to include/asm-<arch>" from Geert Uytterhoeven
fixes pathnames in some code comments
- "Converge on using secs_to_jiffies()" from Easwar Hariharan uses
the new secs_to_jiffies() in various places where that is
appropriate
- "ocfs2, dlmfs: convert to the new mount API" from Eric Sandeen
switches two filesystems to the new mount API
- "Convert ocfs2 to use folios" from Matthew Wilcox does that
- "Remove get_task_comm() and print task comm directly" from Yafang
Shao removes now-unneeded calls to get_task_comm() in various
places
- "squashfs: reduce memory usage and update docs" from Phillip
Lougher implements some memory savings in squashfs and performs
some maintainability work
- "lib: clarify comparison function requirements" from Kuan-Wei Chiu
tightens the sort code's behaviour and adds some maintenance work
- "nilfs2: protect busy buffer heads from being force-cleared" from
Ryusuke Konishi fixes an issues in nlifs when the fs is presented
with a corrupted image
- "nilfs2: fix kernel-doc comments for function return values" from
Ryusuke Konishi fixes some nilfs kerneldoc
- "nilfs2: fix issues with rename operations" from Ryusuke Konishi
addresses some nilfs BUG_ONs which syzbot was able to trigger
- "minmax.h: Cleanups and minor optimisations" from David Laight does
some maintenance work on the min/max library code
- "Fixes and cleanups to xarray" from Kemeng Shi does maintenance
work on the xarray library code"
* tag 'mm-nonmm-stable-2025-01-24-23-16' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (131 commits)
ocfs2: use str_yes_no() and str_no_yes() helper functions
include/linux/lz4.h: add some missing macros
Xarray: use xa_mark_t in xas_squash_marks() to keep code consistent
Xarray: remove repeat check in xas_squash_marks()
Xarray: distinguish large entries correctly in xas_split_alloc()
Xarray: move forward index correctly in xas_pause()
Xarray: do not return sibling entries from xas_find_marked()
ipc/util.c: complete the kernel-doc function descriptions
gcov: clang: use correct function param names
latencytop: use correct kernel-doc format for func params
minmax.h: remove some #defines that are only expanded once
minmax.h: simplify the variants of clamp()
minmax.h: move all the clamp() definitions after the min/max() ones
minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()
minmax.h: reduce the #define expansion of min(), max() and clamp()
minmax.h: update some comments
minmax.h: add whitespace around operators and after commas
nilfs2: do not update mtime of renamed directory that is not moved
nilfs2: handle errors that nilfs_prepare_chunk() may return
CREDITS: fix spelling mistake
...
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata updates from Damien Le Moal:
- Constify struct pci_device_id (Christophe)
- Remove unused code in the sata_gemini driver (David)
- Improve libahci_platform to allow supporting non consecutive port
numbers as specified in device trees (Josua)
- Cleanup ahci driver code handling of port numbers with the new helper
ahci_ignore_port() (me)
- Use pm_sleep_ptr() to remove CONFIG_PM_SLEEP ifdefs in the ahci_st
driver (Raphael). More of these changes will be included in the next
cycle
* tag 'ata-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ahci: st: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr()
ahci: Introduce ahci_ignore_port() helper
ata: libahci_platform: support non-consecutive port numbers
ata: sata_gemini: Remove remaining reset glue
ata: sata_gemini: Remove unused gemini_sata_reset_bridge()
ata: Constify struct pci_device_id
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, fnic, qla2xx, mpi3mr).
The major core change is the renaming of the slave_ methods plus a bit
of constification. The rest are minor updates and fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (103 commits)
scsi: fnic: Propagate SCSI error code from fnic_scsi_drv_init()
scsi: fnic: Test for memory allocation failure and return error code
scsi: fnic: Return appropriate error code from failure of scsi drv init
scsi: fnic: Return appropriate error code for mem alloc failure
scsi: fnic: Remove always-true IS_FNIC_FCP_INITIATOR macro
scsi: fnic: Fix use of uninitialized value in debug message
scsi: fnic: Delete incorrect debugfs error handling
scsi: fnic: Remove unnecessary else to fix warning in FDLS FIP
scsi: fnic: Remove extern definition from .c files
scsi: fnic: Remove unnecessary else and unnecessary break in FDLS
scsi: mpi3mr: Fix possible crash when setting up bsg fails
scsi: ufs: bsg: Set bsg_queue to NULL after removal
scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails
scsi: st: Don't set pos_unknown just after device recognition
scsi: aic7xxx: Fix build 'aicasm' warning
scsi: Revert "scsi: ufs: core: Probe for EXT_IID support"
scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
scsi: scsi_debug: Constify sdebug_driver_template
scsi: documentation: Corrections for struct updates
scsi: driver-api: documentation: Change what is added to docbook
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
"Two changes for the 6.14 kernel.
The first change concerns the PCI driver for 1394 OHCI hardware.
Previously, it used legacy PCI suspend/resume callbacks, which have
now been replaced with callbacks defined in the Linux generic power
management framework. This original patch was posted in 2020 and has
been adapted with some modifications for the latest kernel. Note that
the driver still includes platform-specific operations for PowerPC,
and these operations have not been tested in the new implementation
yet. It would be helpful to share the results of suspending/resuming
on the platform.
The other one is a minor fix for the memory allocation in some KUnit
tests"
* tag 'firewire-updates-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: test: Fix potential null dereference in firewire kunit test
firewire: ohci: use generic power management
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The enable_gpe_wakeup() function calls acpi_enable_all_wakeup_gpes(),
and the later one may call the preempt_schedule_common() function,
resulting in a thread switch and causing the CPU to be in an interrupt
enabled state after the enable_gpe_wakeup() function returns, leading
to the warnings as follow.
[ C0] WARNING: ... at kernel/time/timekeeping.c:845 ktime_get+0xbc/0xc8
[ C0] ...
[ C0] Call Trace:
[ C0] [<90000000002243b4>] show_stack+0x64/0x188
[ C0] [<900000000164673c>] dump_stack_lvl+0x60/0x88
[ C0] [<90000000002687e4>] __warn+0x8c/0x148
[ C0] [<90000000015e9978>] report_bug+0x1c0/0x2b0
[ C0] [<90000000016478e4>] do_bp+0x204/0x3b8
[ C0] [<90000000025b1924>] exception_handlers+0x1924/0x10000
[ C0] [<9000000000343bbc>] ktime_get+0xbc/0xc8
[ C0] [<9000000000354c08>] tick_sched_timer+0x30/0xb0
[ C0] [<90000000003408e0>] __hrtimer_run_queues+0x160/0x378
[ C0] [<9000000000341f14>] hrtimer_interrupt+0x144/0x388
[ C0] [<9000000000228348>] constant_timer_interrupt+0x38/0x48
[ C0] [<90000000002feba4>] __handle_irq_event_percpu+0x64/0x1e8
[ C0] [<90000000002fed48>] handle_irq_event_percpu+0x20/0x80
[ C0] [<9000000000306b9c>] handle_percpu_irq+0x5c/0x98
[ C0] [<90000000002fd4a0>] generic_handle_domain_irq+0x30/0x48
[ C0] [<9000000000d0c7b0>] handle_cpu_irq+0x70/0xa8
[ C0] [<9000000001646b30>] handle_loongarch_irq+0x30/0x48
[ C0] [<9000000001646bc8>] do_vint+0x80/0xe0
[ C0] [<90000000002aea1c>] finish_task_switch.isra.0+0x8c/0x2a8
[ C0] [<900000000164e34c>] __schedule+0x314/0xa48
[ C0] [<900000000164ead8>] schedule+0x58/0xf0
[ C0] [<9000000000294a2c>] worker_thread+0x224/0x498
[ C0] [<900000000029d2f0>] kthread+0xf8/0x108
[ C0] [<9000000000221f28>] ret_from_kernel_thread+0xc/0xa4
[ C0]
[ C0] ---[ end trace 0000000000000000 ]---
The root cause is acpi_enable_all_wakeup_gpes() uses a mutex to protect
acpi_hw_enable_all_wakeup_gpes(), and acpi_ut_acquire_mutex() may cause
a thread switch. Since there is no longer concurrent execution during
loongarch_acpi_suspend(), we can call acpi_hw_enable_all_wakeup_gpes()
directly in enable_gpe_wakeup().
The solution is similar to commit 22db06337f590d01 ("ACPI: sleep: Avoid
breaking S3 wakeup due to might_sleep()").
Fixes: 366bb35a8e48 ("LoongArch: Add suspend (ACPI S3) support")
Signed-off-by: Qunqin Zhao <zhaoqunqin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
|
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We cannot and should not put per-CPU compression stream in
write_incompressible_page() because that function never gets any
per-CPU streams in the first place. It's zram_write_page() that
puts the stream before it calls write_incompressible_page().
Link: https://lkml.kernel.org/r/20250115072003.380567-1-senozhatsky@chromium.org
Fixes: 485d11509d6d ("zram: factor out ZRAM_HUGE write")
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Before SLUB initialization, various subsystems used memblock_alloc to
allocate memory. In most cases, when memory allocation fails, an
immediate panic is required. To simplify this behavior and reduce
repetitive checks, introduce `memblock_alloc_or_panic`. This function
ensures that memory allocation failures result in a panic automatically,
improving code readability and consistency across subsystems that require
this behavior.
[guoweikang.kernel@gmail.com: arch/s390: save_area_alloc default failure behavior changed to panic]
Link: https://lkml.kernel.org/r/20250109033136.2845676-1-guoweikang.kernel@gmail.com
Link: https://lore.kernel.org/lkml/Z2fknmnNtiZbCc7x@kernel.org/
Link: https://lkml.kernel.org/r/20250102072528.650926-1-guoweikang.kernel@gmail.com
Signed-off-by: Guo Weikang <guoweikang.kernel@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> [s390]
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
The previous commit removed the page_list argument from
alloc_pages_bulk_noprof() along with the alloc_pages_bulk_list() function.
Now that only the *_array() flavour of the API remains, we can do the
following renaming (along with the _noprof() ones):
alloc_pages_bulk_array -> alloc_pages_bulk
alloc_pages_bulk_array_mempolicy -> alloc_pages_bulk_mempolicy
alloc_pages_bulk_array_node -> alloc_pages_bulk_node
Link: https://lkml.kernel.org/r/275a3bbc0be20fbe9002297d60045e67ab3d4ada.1734991165.git.luizcap@redhat.com
Signed-off-by: Luiz Capitulino <luizcap@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Current fake-numa implementation prevents new Numa nodes to be later
hot-plugged by drivers. A common symptom of this limitation is the "node
<X> was absent from the node_possible_map" message by associated warning
in mm/memory_hotplug.c: add_memory_resource().
This comes from the lack of remapping in both pxm_to_node_map[] and
node_to_pxm_map[] tables to take fake-numa nodes into account and thus
triggers collisions with original and physical nodes only-mapping that had
been determined from BIOS tables.
This patch fixes this by doing the necessary node-ids translation in both
pxm_to_node_map[]/node_to_pxm_map[] tables. node_distance[] table has
also been fixed accordingly.
Details:
When trying to use fake-numa feature on our system where new Numa nodes
are being "hot-plugged" upon driver load, this fails with the following
type of message and warning with stack :
node 8 was absent from the node_possible_map WARNING: CPU: 61 PID: 4259 at
mm/memory_hotplug.c:1506 add_memory_resource+0x3dc/0x418
This issue prevents the use of the fake-NUMA debug feature with the
system's full configuration, when it has proven to be sometimes extremely
useful for performance testing of multi-tasked, memory-bound applications,
as it enables better isolation of processes/ranks compared to fat NUMA
nodes.
Usual numactl output after driver has “hot-plugged”/unveiled some
new Numa nodes with and without memory :
$ numactl --hardware
available: 9 nodes (0-8)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 0 size: 490037 MB
node 0 free: 484432 MB
node 1 cpus:
node 1 size: 97280 MB
node 1 free: 97279 MB
node 2 cpus:
node 2 size: 0 MB
node 2 free: 0 MB
node 3 cpus:
node 3 size: 0 MB
node 3 free: 0 MB
node 4 cpus:
node 4 size: 0 MB
node 4 free: 0 MB
node 5 cpus:
node 5 size: 0 MB
node 5 free: 0 MB
node 6 cpus:
node 6 size: 0 MB
node 6 free: 0 MB
node 7 cpus:
node 7 size: 0 MB
node 7 free: 0 MB
node 8 cpus:
node 8 size: 0 MB
node 8 free: 0 MB
node distances:
node 0 1 2 3 4 5 6 7 8
0: 10 80 80 80 80 80 80 80 80
1: 80 10 255 255 255 255 255 255 255
2: 80 255 10 255 255 255 255 255 255
3: 80 255 255 10 255 255 255 255 255
4: 80 255 255 255 10 255 255 255 255
5: 80 255 255 255 255 10 255 255 255
6: 80 255 255 255 255 255 10 255 255
7: 80 255 255 255 255 255 255 10 255
8: 80 255 255 255 255 255 255 255 10
With recent M.Rapoport set of fake-numa patches in mm-everything
and using numa=fake=4 boot parameter :
$ numactl --hardware
available: 4 nodes (0-3)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 0 size: 122518 MB
node 0 free: 117141 MB
node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 1 size: 219911 MB
node 1 free: 219751 MB
node 2 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 2 size: 122599 MB
node 2 free: 122541 MB
node 3 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 3 size: 122479 MB
node 3 free: 122408 MB
node distances:
node 0 1 2 3
0: 10 10 10 10
1: 10 10 10 10
2: 10 10 10 10
3: 10 10 10 10
With recent M.Rapoport set of fake-numa patches in mm-everything,
this patch on top, using numa=fake=4 boot parameter :
# numactl —hardware
available: 12 nodes (0-11)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 0 size: 122518 MB
node 0 free: 116429 MB
node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 1 size: 122631 MB
node 1 free: 122576 MB
node 2 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 2 size: 122599 MB
node 2 free: 122544 MB
node 3 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65 66 67 68 69 70 71
node 3 size: 122479 MB
node 3 free: 122419 MB
node 4 cpus:
node 4 size: 97280 MB
node 4 free: 97279 MB
node 5 cpus:
node 5 size: 0 MB
node 5 free: 0 MB
node 6 cpus:
node 6 size: 0 MB
node 6 free: 0 MB
node 7 cpus:
node 7 size: 0 MB
node 7 free: 0 MB
node 8 cpus:
node 8 size: 0 MB
node 8 free: 0 MB
node 9 cpus:
node 9 size: 0 MB
node 9 free: 0 MB
node 10 cpus:
node 10 size: 0 MB
node 10 free: 0 MB
node 11 cpus:
node 11 size: 0 MB
node 11 free: 0 MB
node distances:
node 0 1 2 3 4 5 6 7 8 9 10 11
0: 10 10 10 10 80 80 80 80 80 80 80 80
1: 10 10 10 10 80 80 80 80 80 80 80 80
2: 10 10 10 10 80 80 80 80 80 80 80 80
3: 10 10 10 10 80 80 80 80 80 80 80 80
4: 80 80 80 80 10 255 255 255 255 255 255 255
5: 80 80 80 80 255 10 255 255 255 255 255 255
6: 80 80 80 80 255 255 10 255 255 255 255 255
7: 80 80 80 80 255 255 255 10 255 255 255 255
8: 80 80 80 80 255 255 255 255 10 255 255 255
9: 80 80 80 80 255 255 255 255 255 10 255 255
10: 80 80 80 80 255 255 255 255 255 255 10 255
11: 80 80 80 80 255 255 255 255 255 255 255 10
Link: https://lkml.kernel.org/r/20250106120659.359610-2-bfaccini@nvidia.com
Signed-off-by: Bruno Faccini <bfaccini@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Memory hotplug presently auto-onlines memory into a zone the kernel deems
appropriate if CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y.
The memhp_default_state boot param enables runtime config, but it's not
possible to do this at build-time.
Remove CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE, and replace it with
CONFIG_MHP_DEFAULT_ONLINE_TYPE_* choices that sync with the boot param.
Selections:
CONFIG_MHP_DEFAULT_ONLINE_TYPE_OFFLINE
=> mhp_default_online_type = "offline"
Memory will not be onlined automatically.
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_AUTO
=> mhp_default_online_type = "online"
Memory will be onlined automatically in a zone deemed.
appropriate by the kernel.
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_KERNEL
=> mhp_default_online_type = "online_kernel"
Memory will be onlined automatically.
The zone may allow kernel data (e.g. ZONE_NORMAL).
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_MOVABLE
=> mhp_default_online_type = "online_movable"
Memory will be onlined automatically.
The zone will be ZONE_MOVABLE.
Default to CONFIG_MHP_DEFAULT_ONLINE_TYPE_OFFLINE to match the existing
default CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=n behavior.
Existing users of CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y should use
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_AUTO.
[gourry@gourry.net: update KConfig comments]
Link: https://lkml.kernel.org/r/20241226182918.648799-1-gourry@gourry.net
Link: https://lkml.kernel.org/r/20241220210709.300066-1-gourry@gourry.net
Signed-off-by: Gregory Price <gourry@gourry.net>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
zram writeback is a costly operation, because every target slot (unless
ZRAM_HUGE) is decompressed before it gets written to a backing device.
The writeback to a backing device uses submit_bio_wait() which may look
like a rescheduling point. However, if the backing device has
BD_HAS_SUBMIT_BIO bit set __submit_bio() calls directly
disk->fops->submit_bio(bio) on the backing device and so when
submit_bio_wait() calls blk_wait_io() the I/O is already done. On such
systems we effective end up in a loop
for_each (target slot) {
decompress(slot)
__submit_bio()
disk->fops->submit_bio(bio)
}
Which on PREEMPT_NONE systems triggers watchdogs (since there are no
explicit rescheduling points). Add cond_resched() to the zram writeback
loop.
Link: https://lkml.kernel.org/r/20241218063513.297475-8-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
We only can read pages from zspool in writeback, zram_read_page() is not
really right in that context not only because it's a more generic function
that handles ZRAM_WB pages, but also because it requires us to unlock slot
between slot flag check and actual page read. Use zram_read_from_zspool()
instead and do slot flags check and page read under the same slot lock.
Link: https://lkml.kernel.org/r/20241218063513.297475-7-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Similarly to write, split the page read code into ZRAM_HUGE read,
ZRAM_SAME read and compressed page read to simplify the code.
Link: https://lkml.kernel.org/r/20241218063513.297475-6-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
zram_write_page() handles: ZRAM_SAME pages (which was already factored
out) stores, regular page stores and ZRAM_HUGE pages stores.
ZRAM_HUGE handling adds a significant amount of complexity. Instead, we
can handle ZRAM_HUGE in a separate function. This allows us to simplify
zs_handle allocations slow-path, as it now does not handle ZRAM_HUGE case.
ZRAM_HUGE zs_handle allocation, on the other hand, can now drop
__GFP_KSWAPD_RECLAIM because we handle ZRAM_HUGE in preemptible context
(outside of local-lock scope).
Link: https://lkml.kernel.org/r/20241218063513.297475-5-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Handling of ZRAM_SAME now uses a goto to the final stages of
zram_write_page() plus it introduces a branch and flags variable, which is
not making the code any simpler. In reality, we can handle ZRAM_SAME
immediately when we detect such pages and remove a goto and a branch.
Factor out ZRAM_SAME handling into a separate routine to simplify
zram_write_page().
Link: https://lkml.kernel.org/r/20241218063513.297475-4-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Element is in the same anon union as handle and hence holds the same
value, which makes code below sort of confusing
handle = zram_get_handle()
if (!handle)
element = zram_get_element()
Element doesn't really simplify the code, let's just remove it. We
already re-purpose handle to store the block id a written back page.
Link: https://lkml.kernel.org/r/20241218063513.297475-3-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Patch series "zram: split page type read/write handling", v2.
This is a subset of [1] series which contains only fixes and improvements
(no new features, as ZRAM_HUGE split is still under consideration).
The motivation for factoring out is that zram_write_page() gets more and
more complex all the time, because it tries to handle too many scenarios:
ZRAM_SAME store, ZRAM_HUGE store, compress page store with zs_malloc
allocation slowpath and conditional recompression, etc. Factor those out
and make things easier to handle.
Addition of cond_resched() is simply a fix, I can trigger watchdog from
zram writeback(). And early slot free is just a reasonable thing to do.
[1] https://lore.kernel.org/linux-kernel/20241119072057.3440039-1-senozhatsky@chromium.org
This patch (of 7):
In the current implementation entry's previously allocated memory is
released in the very last moment, when we already have allocated a new
memory for new data. This, basically, temporarily increases memory usage
for no good reason. For example, consider the case when both old (stale)
and new entry data are incompressible so such entry will temporarily use
two physical pages - one for stale (old) data and one for new data. We
can release old memory as soon as we get a write request for entry.
Link: https://lkml.kernel.org/r/20241218063513.297475-1-senozhatsky@chromium.org
Link: https://lkml.kernel.org/r/20241218063513.297475-2-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull remoteproc updates from Bjorn Andersson:
- Correct error path in rproc_alloc(), with regards to put_device() and
freeing of the rproc index ida
- The Mediatek SCP remoteproc driver is returned to only creating child
devices from specific DeviceTree nodes
- Update the OMAP remoteproc driver to match the cleanups in the OMAP
iommu driver
In addition to this, a number of conversions to devres and other small,
mostly stylistic, code cleanups
* tag 'rproc-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
remoteproc: st: Use syscon_regmap_lookup_by_phandle_args
remoteproc: keystone: Use syscon_regmap_lookup_by_phandle_args
remoteproc: st: Simplify with dev_err_probe
remoteproc: omap: Simplify returning syscon PTR_ERR
remoteproc: keystone: Simplify returning syscon PTR_ERR
remoteproc: k3-r5: Add devm action to release tsp
remoteproc: k3-r5: Use devm_rproc_add() helper
remoteproc: k3-r5: Use devm_ioremap_wc() helper
remoteproc: k3-r5: Use devm_kcalloc() helper
remoteproc: k3-r5: Add devm action to release reserved memory
remoteproc: mtk_scp: Only populate devices for SCP cores
remoteproc: omap: Handle ARM dma_iommu_mapping
remoteproc: core: Fix ida_free call while not allocated
|
|
git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- Add Qualcomm IPQ5424 DT binding
- da9052_wdt: add support for bootstatus bits
- Other small fixes and improvements
* tag 'linux-watchdog-6.14-rc1' of git://www.linux-watchdog.org/linux-watchdog:
dt-bindings: watchdog: Document Qualcomm IPQ5424
watchdog: rti_wdt: Fix an OF node leak in rti_wdt_probe()
watchdog: max77620: fix excess field in kerneldoc
watchdog: sp805_wdt: Drop documentation of non-existent `status` member
watchdog: rzv2h_wdt: Use local `dev` pointer in probe
watchdog: da9052_wdt: add support for bootstatus bits
watchdog: sp805: Report correct timeleft at maximum
watchdog: rti: Fix off-by-one in heartbeat recovery
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"MTD changes:
- There's been no major core change, just a bunch of driver related
improvements.
Amongst them the conversion to of_property_present() for
non-boolean properties, the addition of the support for Fujitsu
MB85RS128TY FRAM, a couple of improvements to the phram driver and
the usual load of misc changes.
Raw NAND changes:
- A new controller driver, from Nuvoton, has been merged
- Bastien Curutchet has contributed a series improving the Davinci
controller driver, both on the organization of the code, but also
on the performance side. The binding has also been converted to
yaml, received a new OOB layout and now supports on-die ECC engines
- The Qualcomm controller driver has been deeply cleaned to extract
some parts of the code into a shared file with the Qualcomm SPI
memory controller
- Aside from these main changes, the Cadence binding has been
converted to yaml, the brcmnand controller driver has received a
small fix, otherwise some more minor changes have also made their
way in
SPI NAND changes:
- The SPI NAND subsystem has seen a great improvement, with the
advent of DTR operations (DDR operations, which may be extended to
the address cycles). The first vendor driver to benefit from these
improvements is the Winbond driver
- A new manufacturer driver is added SkyHigh, with a new constraint
for the core, it is impossible to disable the on-die ECC engine
- A Foresee device is also now supported
SPI NOR changes:
- Several flash entries have been added: Atmel AT25SF321, Spansion
S28HL256T and S28HL02GT
- Support for vcc-supply regulators and their DT bindings has been
added
- The mx25u25635f entry has been dropped. The flash shares its ID
with mx25u25645g and both parts have an SFDP table. Removing their
entry lets them be driven by the generic SFDP-based driver"
* tag 'mtd/for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (47 commits)
mtd: spinand: skyhigh: Align with recent read from cache variant changes
mtd: spinand: winbond: Add support for DTR operations
mtd: spinand: winbond: Add comment about naming
mtd: spinand: winbond: Update the *JW chip definitions
mtd: spinand: Add support for read DTR operations
mtd: spinand: Enhance the logic when picking a variant
mtd: spinand: Add an optional frequency to read from cache macros
mtd: spinand: Create distinct fast and slow read from cache variants
mtd: hyperbus: Use of_property_present() for non-boolean properties
mtd: st_spi_fsm: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr()
mtd: rawnand: davinci: add ROM supported OOB layout
mtd: spi-nor: sysfs: constify 'struct bin_attribute'
mtd: spi-nor: spansion: Add support for S28HL02GT
mtd: spi-nor: spansion: Add support for S28HL256T
mtd: spi-nor: extend description of size member of struct flash_info
mtd: rawnand: davinci: Reduce polling interval in NAND_OP_WAITRDY_INSTR
mtd: rawnand: qcom: Fix build issue on x86 architecture
mtd: rawnand: qcom: use FIELD_PREP and GENMASK
mtd: nand: Add qpic_common API file
mtd: rawnand: qcom: Add qcom prefix to common api
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Batch sizing of multiple BARs while memory decoding is disabled
instead of disabling/enabling decoding for each BAR individually;
this optimizes virtualized environments where toggling decoding
enable is expensive (Alex Williamson)
- Add host bridge .enable_device() and .disable_device() hooks for
bridges that need to configure things like Requester ID to StreamID
mapping when enabling devices (Frank Li)
- Extend struct pci_ecam_ops with .enable_device() and
.disable_device() hooks so drivers that use pci_host_common_probe()
instead of their own .probe() have a way to set the
.enable_device() callbacks (Marc Zyngier)
- Drop 'No bus range found' message so we don't complain when DTs
don't specify the default 'bus-range = <0x00 0xff>' (Bjorn Helgaas)
- Rename the drivers/pci/of_property.c struct of_pci_range to
of_pci_range_entry to avoid confusion with the global of_pci_range
in include/linux/of_address.h (Bjorn Helgaas)
Driver binding:
- Update resource request API documentation to encourage callers to
supply a driver name when requesting resources (Philipp Stanner)
- Export pci_intx_unmanaged() and pcim_intx() (always managed) so
callers of pci_intx() (which is sometimes managed) can explicitly
choose the one they need (Philipp Stanner)
- Convert drivers from pci_intx() to always-managed pcim_intx() or
never-managed pci_intx_unmanaged(): amd_sfh, ata (ahci, ata_piix,
pata_rdc, sata_sil24, sata_sis, sata_uli, sata_vsc), bnx2x, bna,
ntb, qtnfmac, rtsx, tifm_7xx1, vfio, xen-pciback (Philipp Stanner)
- Remove pci_intx_unmanaged() since pci_intx() is now always
unmanaged and pcim_intx() is always managed (Philipp Stanner)
Error handling:
- Unexport pcie_read_tlp_log() to encourage drivers to use PCI core
logging rather than building their own (Ilpo Järvinen)
- Move TLP Log handling to its own file (Ilpo Järvinen)
- Store number of supported End-End TLP Prefixes always so we can
read the correct number of DWORDs from the TLP Prefix Log (Ilpo
Järvinen)
- Read TLP Prefixes in addition to the Header Log in
pcie_read_tlp_log() (Ilpo Järvinen)
- Add pcie_print_tlp_log() to consolidate printing of TLP Header and
Prefix Log (Ilpo Järvinen)
- Quirk the Intel Raptor Lake-P PIO log size to accommodate vendor
BIOSes that don't configure it correctly (Takashi Iwai)
ASPM:
- Save parent L1 PM Substates config so when we restore it along with
an endpoint's config, the parent info isn't junk (Jian-Hong Pan)
Power management:
- Avoid D3 for Root Ports on TUXEDO Sirius Gen1 with old BIOS because
the system can't wake up from suspend (Werner Sembach)
Endpoint framework:
- Destroy the EPC device in devm_pci_epc_destroy(), which previously
didn't call devres_release() (Zijun Hu)
- Finish virtual EP removal in pci_epf_remove_vepf(), which
previously caused a subsequent pci_epf_add_vepf() to fail with
-EBUSY (Zijun Hu)
- Write BAR_MASK before iATU registers in pci_epc_set_bar() so we
don't depend on the BAR_MASK reset value being larger than the
requested BAR size (Niklas Cassel)
- Prevent changing BAR size/flags in pci_epc_set_bar() to prevent
reads from bypassing the iATU if we reduced the BAR size (Niklas
Cassel)
- Verify address alignment when programming iATU so we don't attempt
to write bits that are read-only because of the BAR size, which
could lead to directing accesses to the wrong address (Niklas
Cassel)
- Implement artpec6 pci_epc_features so we can rely on all drivers
supporting it so we can use it in EPC core code (Niklas Cassel)
- Check for BARs of fixed size to prevent endpoint drivers from
trying to change their size (Niklas Cassel)
- Verify that requested BAR size is a power of two when endpoint
driver sets the BAR (Niklas Cassel)
Endpoint framework tests:
- Clear pci-epf-test dma_chan_rx, not dma_chan_tx, after freeing
dma_chan_rx (Mohamed Khalfella)
- Correct the DMA MEMCPY test so it doesn't fail if the Endpoint
supports both DMA_PRIVATE and DMA_MEMCPY (Manivannan Sadhasivam)
- Add pci-epf-test and pci_endpoint_test support for capabilities
(Niklas Cassel)
- Add Endpoint test for consecutive BARs (Niklas Cassel)
- Remove redundant comparison from Endpoint BAR test because a > 1MB
BAR can always be exactly covered by iterating with a 1MB buffer
(Hans Zhang)
- Move and convert PCI Endpoint tests from tools/pci to Kselftests
(Manivannan Sadhasivam)
Apple PCIe controller driver:
- Convert StreamID mapping configuration from a bus notifier to the
.enable_device() and .disable_device() callbacks (Marc Zyngier)
Freescale i.MX6 PCIe controller driver:
- Add Requester ID to StreamID mapping configuration when enabling
devices (Frank Li)
- Use DWC core suspend/resume functions for imx6 (Frank Li)
- Add suspend/resume support for i.MX8MQ, i.MX8Q, and i.MX95 (Richard
Zhu)
- Add DT compatible string 'fsl,imx8q-pcie-ep' and driver support for
i.MX8Q series (i.MX8QM, i.MX8QXP, and i.MX8DXL) Endpoints (Frank
Li)
- Add DT binding for optional i.MX95 Refclk and driver support to
enable it if the platform hasn't enabled it (Richard Zhu)
- Configure PHY based on controller being in Root Complex or Endpoint
mode (Frank Li)
- Rely on dbi2 and iATU base addresses from DT via
dw_pcie_get_resources() instead of hardcoding them (Richard Zhu)
- Deassert apps_reset in imx_pcie_deassert_core_reset() since it is
asserted in imx_pcie_assert_core_reset() (Richard Zhu)
- Add missing reference clock enable or disable logic for IMX6SX,
IMX7D, IMX8MM (Richard Zhu)
- Remove redundant imx7d_pcie_init_phy() since
imx7d_pcie_enable_ref_clk() does the same thing (Richard Zhu)
Freescale Layerscape PCIe controller driver:
- Simplify by using syscon_regmap_lookup_by_phandle_args() instead
of syscon_regmap_lookup_by_phandle() followed by
of_property_read_u32_array() (Krzysztof Kozlowski)
Marvell MVEBU PCIe controller driver:
- Add MODULE_DEVICE_TABLE() to enable module autoloading (Liao Chen)
MediaTek PCIe Gen3 controller driver:
- Use clk_bulk_prepare_enable() instead of separate
clk_bulk_prepare() and clk_bulk_enable() (Lorenzo Bianconi)
- Rearrange reset assert/deassert so they're both done in the
*_power_up() callbacks (Lorenzo Bianconi)
- Document that Airoha EN7581 requires PHY init and power-on before
PHY reset deassert, unlike other MediaTek Gen3 controllers (Lorenzo
Bianconi)
- Move Airoha EN7581 post-reset delay from the en7581 clock .enable()
method to mtk_pcie_en7581_power_up() (Lorenzo Bianconi)
- Sleep instead of delay during Airoha EN7581 power-up, since this is
a non-atomic context (Lorenzo Bianconi)
- Skip PERST# assertion on Airoha EN7581 during probe and
suspend/resume to avoid a hardware defect (Lorenzo Bianconi)
- Enable async probe to reduce system startup time (Douglas Anderson)
Microchip PolarFlare PCIe controller driver:
- Set up the inbound address translation based on whether the
platform allows coherent or non-coherent DMA (Daire McNamara)
- Update DT binding such that platforms are DMA-coherent by default
and must specify 'dma-noncoherent' if needed (Conor Dooley)
Mobiveil PCIe controller driver:
- Convert mobiveil-pcie.txt to YAML and update 'interrupt-names'
and 'reg-names' (Frank Li)
Qualcomm PCIe controller driver:
- Add DT SM8550 and SM8650 optional 'global' interrupt for link
events (Neil Armstrong)
- Add DT 'compatible' strings for IPQ5424 PCIe controller (Manikanta
Mylavarapu)
- If 'global' IRQ is supported for detection of Link Up events, tell
DWC core not to wait for link up (Krishna chaitanya chundru)
Renesas R-Car PCIe controller driver:
- Avoid passing stack buffer as resource name (King Dix)
Rockchip PCIe controller driver:
- Simplify clock and reset handling by using bulk interfaces (Anand
Moon)
- Pass typed rockchip_pcie (not void) pointer to
rockchip_pcie_disable_clocks() (Anand Moon)
- Return -ENOMEM, not success, when pci_epc_mem_alloc_addr() fails
(Dan Carpenter)
Rockchip DesignWare PCIe controller driver:
- Use dll_link_up IRQ to detect Link Up and enumerate devices so
users don't have to manually rescan (Niklas Cassel)
- Tell DWC core not to wait for link up since the 'sys' interrupt is
required and detects Link Up events (Niklas Cassel)
Synopsys DesignWare PCIe controller driver:
- Don't wait for link up in DWC core if driver can detect Link Up
event (Krishna chaitanya chundru)
- Update ICC and OPP votes after Link Up events (Krishna chaitanya
chundru)
- Always stop link in dw_pcie_suspend_noirq(), which is required at
least for i.MX8QM to re-establish link on resume (Richard Zhu)
- Drop racy and unnecessary LTSSM state check before sending
PME_TURN_OFF message in dw_pcie_suspend_noirq() (Richard Zhu)
- Add struct of_pci_range.parent_bus_addr for devices that need their
immediate parent bus address, not the CPU address, e.g., to program
an internal Address Translation Unit (iATU) (Frank Li)
TI DRA7xx PCIe controller driver:
- Simplify by using syscon_regmap_lookup_by_phandle_args() instead of
syscon_regmap_lookup_by_phandle() followed by
of_parse_phandle_with_fixed_args() or of_property_read_u32_index()
(Krzysztof Kozlowski)
Xilinx Versal CPM PCIe controller driver:
- Add DT binding and driver support for Xilinx Versal CPM5
(Thippeswamy Havalige)
MicroSemi Switchtec management driver:
- Add Microchip PCI100X device IDs (Rakesh Babu Saladi)
Miscellaneous:
- Move reset related sysfs code from pci.c to pci-sysfs.c where other
similar code lives (Ilpo Järvinen)
- Simplify reset_method_store() memory management by using __free()
instead of explicit kfree() cleanup (Ilpo Järvinen)
- Constify struct bin_attribute for sysfs, VPD, P2PDMA, and the IBM
ACPI hotplug driver (Thomas Weißschuh)
- Remove redundant PCI_VSEC_HDR and PCI_VSEC_HDR_LEN_SHIFT (Dongdong
Zhang)
- Correct documentation of the 'config_acs=' kernel parameter
(Akihiko Odaki)"
* tag 'pci-v6.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (111 commits)
PCI: Batch BAR sizing operations
dt-bindings: PCI: microchip,pcie-host: Allow dma-noncoherent
PCI: microchip: Set inbound address translation for coherent or non-coherent mode
Documentation: Fix pci=config_acs= example
PCI: Remove redundant PCI_VSEC_HDR and PCI_VSEC_HDR_LEN_SHIFT
PCI: Don't include 'pm_wakeup.h' directly
selftests: pci_endpoint: Migrate to Kselftest framework
selftests: Move PCI Endpoint tests from tools/pci to Kselftests
misc: pci_endpoint_test: Fix IOCTL return value
dt-bindings: PCI: qcom: Document the IPQ5424 PCIe controller
dt-bindings: PCI: qcom,pcie-sm8550: Document 'global' interrupt
dt-bindings: PCI: mobiveil: Convert mobiveil-pcie.txt to YAML
PCI: switchtec: Add Microchip PCI100X device IDs
misc: pci_endpoint_test: Remove redundant 'remainder' test
misc: pci_endpoint_test: Add consecutive BAR test
misc: pci_endpoint_test: Add support for capabilities
PCI: endpoint: pci-epf-test: Add support for capabilities
PCI: endpoint: pci-epf-test: Fix check for DMA MEMCPY test
PCI: endpoint: pci-epf-test: Set dma_chan_rx pointer to NULL on error
PCI: dwc: Simplify config resource lookup
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Sensor driver fixes
- remove dead TI wl128x FM radio driver
- Add support for the imx462 sensor at the IMX290 binding
- V4L2 pixel data transmitter and receiver documentation improvements
- Add support for MIPI Discovery and Configuration for C-PHY line
orders
- imx8-isi fixes and improvements
- stm32: dcmipp: add core support for the stm32mp25
- qcom: camss: Add sc7280 support
- Various fixes and enhancements
* tag 'media/v6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (152 commits)
media: nuvoton: Fix an error check in npcm_video_ece_init()
media: dvb-usb-v2: af9035: fix ISO C90 compilation error on af9035_i2c_master_xfer
media: platform: rzg2l-cru: rzg2l-video: Fix the comment in rzg2l_cru_start_streaming_vq()
media: fix secfeed undefined when filter alloc fail
media: dt-bindings: trivial white-space and example cleanup
MAINTAINERS: repair file entry in MEDIA DRIVERS FOR STM32 - CSI
media: solo6x10: Use const 'struct bin_attribute' callback
media: saa7164: Remove unused values
staging: media: imx: fix OF node leak in imx_media_add_of_subdevs()
media: platform: exynos4-is: Remove unused __is_get_frame_size
media: vidtv: Fix a null-ptr-deref in vidtv_mux_stop_thread
media: mmp: Bring back registration of the device
media: cec: include linux/debugfs.h and linux/seq_file.h where needed
Revert "media: qcom: camss: Restructure camss_link_entities"
media: venus: Remove unused hfi_core_ping()
media: dt-bindings: qcom-venus: Deprecate video-decoder and video-encoder where applicable
media: venus: Populate video encoder/decoder nodename entries
media: venus: Add support for static video encoder/decoder declarations
media: venus: match instance creation and destruction order
media: venus: destroy hfi session after m2m_ctx release
...
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