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Commit eeb934137deb ("iommu/amd: Report SEV-TIO support") was confused
about the config options that expose amd_iommu_sev_tio_supported(), and
made the declaration (and alternative dummy function) conditional on the
CONFIG_AMD_IOMMU config option.
But the code is actually dependent on CONFIG_KVM_AMD_SEV, resulting in
ERROR: modpost: "amd_iommu_sev_tio_supported" [drivers/crypto/ccp/ccp.ko] undefined!
make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1
if you have the AMD iommu enabled, but don't enable KVM_AMD_SEV support.
Fix it by moving the declaration into the right #ifdef section in the
header file.
Fixes: eeb934137deb ("iommu/amd: Report SEV-TIO support")
Cc: Alexey Kardashevskiy <aik@amd.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: Vasant Hegde <vasant.hegde@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull nfsd updates from Chuck Lever:
- Mike Snitzer's mechanism for disabling I/O caching introduced in
v6.18 is extended to include using direct I/O. The goal is to further
reduce the memory footprint consumed by NFS clients accessing large
data sets via NFSD.
- The NFSD community adopted a maintainer entry profile during this
cycle. See
Documentation/filesystems/nfs/nfsd-maintainer-entry-profile.rst
- Work continues on hardening NFSD's implementation of the pNFS block
layout type. This type enables pNFS clients to directly access the
underlying block devices that contain an exported file system,
reducing server overhead and increasing data throughput.
- The remaining patches are clean-ups and minor optimizations. Many
thanks to the contributors, reviewers, testers, and bug reporters who
participated during the v6.19 NFSD development cycle.
* tag 'nfsd-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (38 commits)
NFSD: nfsd-io-modes: Separate lists
NFSD: nfsd-io-modes: Wrap shell snippets in literal code blocks
NFSD: Add toctree entry for NFSD IO modes docs
NFSD: add Documentation/filesystems/nfs/nfsd-io-modes.rst
NFSD: Implement NFSD_IO_DIRECT for NFS WRITE
NFSD: Make FILE_SYNC WRITEs comply with spec
NFSD: Add trace point for SCSI fencing operation.
NFSD: use correct reservation type in nfsd4_scsi_fence_client
xdrgen: Don't generate unnecessary semicolon
xdrgen: Fix union declarations
NFSD: don't start nfsd if sv_permsocks is empty
xdrgen: handle _XdrString in union encoder/decoder
xdrgen: Fix the variable-length opaque field decoder template
xdrgen: Make the xdrgen script location-independent
xdrgen: Generalize/harden pathname construction
lockd: don't allow locking on reexported NFSv2/3
MAINTAINERS: add a nfsd blocklayout reviewer
nfsd: Use MD5 library instead of crypto_shash
nfsd: stop pretending that we cache the SEQUENCE reply.
NFS: nfsd-maintainer-entry-profile: Inline function name prefixes
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"This round it contains only three small cleanup patches"
* tag 'for-linus-6.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
drivers/xen: use min() instead of min_t()
drivers/xen/xenbus: Replace deprecated strcpy in xenbus_transaction_end
drivers/xen/xenbus: Simplify return statement in join()
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git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm
Pull PCIe Link Encryption and Device Authentication from Dan Williams:
"New PCI infrastructure and one architecture implementation for PCIe
link encryption establishment via platform firmware services.
This work is the result of multiple vendors coming to consensus on
some core infrastructure (thanks Alexey, Yilun, and Aneesh!), and
three vendor implementations, although only one is included in this
pull. The PCI core changes have an ack from Bjorn, the crypto/ccp/
changes have an ack from Tom, and the iommu/amd/ changes have an ack
from Joerg.
PCIe link encryption is made possible by the soup of acronyms
mentioned in the shortlog below. Link Integrity and Data Encryption
(IDE) is a protocol for installing keys in the transmitter and
receiver at each end of a link. That protocol is transported over Data
Object Exchange (DOE) mailboxes using PCI configuration requests.
The aspect that makes this a "platform firmware service" is that the
key provisioning and protocol is coordinated through a Trusted
Execution Envrionment (TEE) Security Manager (TSM). That is either
firmware running in a coprocessor (AMD SEV-TIO), or quasi-hypervisor
software (Intel TDX Connect / ARM CCA) running in a protected CPU
mode.
Now, the only reason to ask a TSM to run this protocol and install the
keys rather than have a Linux driver do the same is so that later, a
confidential VM can ask the TSM directly "can you certify this
device?".
That precludes host Linux from provisioning its own keys, because host
Linux is outside the trust domain for the VM. It also turns out that
all architectures, save for one, do not publish a mechanism for an OS
to establish keys in the root port. So "TSM-established link
encryption" is the only cross-architecture path for this capability
for the foreseeable future.
This unblocks the other arch implementations to follow in v6.20/v7.0,
once they clear some other dependencies, and it unblocks the next
phase of work to implement the end-to-end flow of confidential device
assignment. The PCIe specification calls this end-to-end flow Trusted
Execution Environment (TEE) Device Interface Security Protocol
(TDISP).
In the meantime, Linux gets a link encryption facility which has
practical benefits along the same lines as memory encryption. It
authenticates devices via certificates and may protect against
interposer attacks trying to capture clear-text PCIe traffic.
Summary:
- Introduce the PCI/TSM core for the coordination of device
authentication, link encryption and establishment (IDE), and later
management of the device security operational states (TDISP).
Notify the new TSM core layer of PCI device arrival and departure
- Add a low level TSM driver for the link encryption establishment
capabilities of the AMD SEV-TIO architecture
- Add a library of helpers TSM drivers to use for IDE establishment
and the DOE transport
- Add skeleton support for 'bind' and 'guest_request' operations in
support of TDISP"
* tag 'tsm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm: (23 commits)
crypto/ccp: Fix CONFIG_PCI=n build
virt: Fix Kconfig warning when selecting TSM without VIRT_DRIVERS
crypto/ccp: Implement SEV-TIO PCIe IDE (phase1)
iommu/amd: Report SEV-TIO support
psp-sev: Assign numbers to all status codes and add new
ccp: Make snp_reclaim_pages and __sev_do_cmd_locked public
PCI/TSM: Add 'dsm' and 'bound' attributes for dependent functions
PCI/TSM: Add pci_tsm_guest_req() for managing TDIs
PCI/TSM: Add pci_tsm_bind() helper for instantiating TDIs
PCI/IDE: Initialize an ID for all IDE streams
PCI/IDE: Add Address Association Register setup for downstream MMIO
resource: Introduce resource_assigned() for discerning active resources
PCI/TSM: Drop stub for pci_tsm_doe_transfer()
drivers/virt: Drop VIRT_DRIVERS build dependency
PCI/TSM: Report active IDE streams
PCI/IDE: Report available IDE streams
PCI/IDE: Add IDE establishment helpers
PCI: Establish document for PCI host bridge sysfs attributes
PCI: Add PCIe Device 3 Extended Capability enumeration
PCI/TSM: Establish Secure Sessions and Link Encryption
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- Add watchdog support for:
- Renesas WWDT
- AST2700 platform
- MediaTek MT8189 SoC
- Loongson-2k0300 watchdog
- Qualcomm Kaanapali watchdog
- RK3506 compatible
- Airoha AN7583 SoC
- DT Schema conversions:
- lantiq,wdt
- TI OMAP
- marvell,orion-wdt
- Several other fixes and improvements
* tag 'linux-watchdog-6.19-rc1' of git://www.linux-watchdog.org/linux-watchdog: (30 commits)
watchdog: starfive: Fix resource leak in probe error path
dt-bindings: watchdog: airoha: Add support for Airoha AN7583 SoC
dt-bindings: watchdog: lantiq,wdt: convert bindings to dtschema
dt-bindings: watchdog: Add RK3506 compatible
dt-bindings: watchdog: Document Qualcomm Kaanapali watchdog
watchdog: wdat_wdt: Fix ACPI table leak in probe function
watchdog: loongson1: Add Loongson-2k0300 watchdog support
dt-bindings: watchdog: loongson,ls1x-wdt: Add ls2k0300-wdt compatible
watchdog: loongson1: Drop CONFIG_OF
watchdog: loongson1: Simplify ls1x_wdt_probe code
watchdog: loongson1: Add missing MODULE_PARM_DESC
watchdog/diag288: Fix module comment typos
dt-bindings: watchdog: Support MediaTek MT8189 wdt
dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT8189 SoC
dt-bindings: mfd: rohm,bd96801-pmic: Correct timeout-sec length and reference watchdog schema
dt-bindings: watchdog: Allow node names named 'pmic'
dt-bindings: watchdog: Restrict timeout-sec to one number
watchdog: renesas_wwdt: add driver
dt-bindings: watchdog: Add Renesas WWDT
dt-bindings: watchdog: Convert marvell,orion-wdt to DT schema
...
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git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull rpmsg updates from Bjorn Andersson:
- Reduce code duplication related to channel removal, and invoke the
removal in one case previously missing, both in the Glink driver
* tag 'rpmsg-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
rpmsg: glink: remove duplicate code for rpmsg device remove
rpmsg: glink: fix rpmsg device leak
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git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull remoteproc updates from Bjorn Andersson:
- Add support for the compute DSP in the Qualcomm SDM660 platform, and
finally fix up the way MSM8974 audio DSP remoteproc driver manages
its power rails
- Replace the usage of of_reserved_mem_lookup() with
of_reserved_mem_region_to_resource() to clean things up across most
of the drivers
- Perform a variety of housekeeping and cleanup work across iMX,
Mediatek, and TI remoteproc drivers
* tag 'rproc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (45 commits)
remoteproc: qcom_q6v5_wcss: use optional reset for wcss_q6_bcr_reset
remoteproc: qcom_q6v5_wcss: fix parsing of qcom,halt-regs
remoteproc: qcom_wcnss: Fix NULL vs IS_ERR() bug in wcnss_alloc_memory_region()
remoteproc: qcom: q6v5: Fix NULL vs IS_ERR() bug in q6v5_alloc_memory_region()
remoteproc: qcom: pas: Fix a couple NULL vs IS_ERR() bugs
remoteproc: qcom_q6v5_adsp: Fix a NULL vs IS_ERR() check in adsp_alloc_memory_region()
remoteproc: imx_dsp_rproc: Fix NULL vs IS_ERR() bug in imx_dsp_rproc_add_carveout()
remoteproc: st: Fix indexing of memory-regions
remoteproc: qcom: pas: Add support for SDM660 CDSP
dt-bindings: remoteproc: qcom: adsp: Add SDM660 CDSP compatible
dt-bindings: remoteproc: qcom: adsp: Add missing constrains for SDM660 ADSP
dt-bindings: remoteproc: qcom,sc8280xp-pas: Fix CDSP power desc
remoteproc: omap: Remove redundant pm_runtime_mark_last_busy() calls
remoteproc: qcom: Use of_reserved_mem_region_* functions for "memory-region"
remoteproc: qcom_q6v5_pas: Use resource with CX PD for MSM8974
dt-bindings: remoteproc: qcom,adsp: Make msm8974 use CX as power domain
remoteproc: Use of_reserved_mem_region_* functions for "memory-region"
remoteproc: imx_dsp_rproc: Simplify start/stop error handling
remoteproc: imx_rproc: Remove enum imx_rproc_method
remoteproc: imx_dsp_rproc: Simplify IMX_RPROC_RESET_CONTROLLER switch case
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock updates from Mickaël Salaün:
"This mainly fixes handling of disconnected directories and adds new
tests"
* tag 'landlock-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
selftests/landlock: Add disconnected leafs and branch test suites
selftests/landlock: Add tests for access through disconnected paths
landlock: Improve variable scope
landlock: Fix handling of disconnected directories
selftests/landlock: Fix makefile header list
landlock: Make docs in cred.h and domain.h visible
landlock: Minor comments improvements
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat updates from Len Brown:
- Add LLC statistics columns:
LLCkRPS = Last Level Cache Thousands of References Per Second
LLC%hit = Last Level Cache Hit %
- Recognize Wildcat Lake and Nova Lake platforms
- Add MSR check for Android
- Add APERF check for VMWARE
- Add RAPL check for AWS
- Minor fixes to turbostat (and x86_energy_perf_policy)
* tag 'turbostat-v2025.12.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (21 commits)
tools/power turbostat: version 2025.12.02
tools/power turbostat: Print wide names only for RAW 64-bit columns
tools/power turbostat: Print percentages in 8-columns
tools/power turbostat: Print "nan" for out of range percentages
tools/power turbostat: Validate APERF access for VMWARE
tools/power turbostat: Enhance perf probe
tools/power turbostat: Validate RAPL MSRs for AWS Nitro Hypervisor
tools/power x86_energy_perf_policy: Fix potential NULL pointer dereference
tools/power x86_energy_perf_policy: Fix format string in error message
tools/power x86_energy_perf_policy: Simplify Android MSR probe
tools/power x86_energy_perf_policy: Add Android MSR device support
tools/power turbostat: Add run-time MSR driver probe
tools/power turbostat: Set per_cpu_msr_sum to NULL after free
tools/power turbostat: Add LLC stats
tools/power turbostat: Remove dead code
tools/power turbostat: Refactor floating point printout code
tools/power turbostat.8: Update example
tools/power turbostat: Refactor added-counter value printing code
tools/power turbostat: Refactor added column header printing
tools/power turbostat: Add Wildcat Lake and Nova Lake support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull nvdimm updates from Ira Weiny:
"These are mainly bug fixes and code updates.
There is a new feature to divide up memmap= carve outs and a fix
caught in linux-next for that patch. Managing memmap memory on the fly
for multiple VM's was proving difficult and Mike provided a driver
which allows for the memory to be better manged.
Summary:
- Allow exposing RAM carveouts as NVDIMM DIMM devices
- Prevent integer overflow in ramdax_get_config_data()
- Replace use of system_wq with system_percpu_wq
- Documentation: btt: Unwrap bit 31-30 nested table
- tools/testing/nvdimm: Use per-DIMM device handle"
* tag 'libnvdimm-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm: Prevent integer overflow in ramdax_get_config_data()
Documentation: btt: Unwrap bit 31-30 nested table
nvdimm: replace use of system_wq with system_percpu_wq
tools/testing/nvdimm: Use per-DIMM device handle
nvdimm: allow exposing RAM carveouts as NVDIMM DIMM devices
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git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping updates from Marek Szyprowski:
- More DMA mapping API refactoring to physical addresses as the primary
interface instead of page+offset parameters.
This time dma_map_ops callbacks are converted to physical addresses,
what in turn results also in some simplification of architecture
specific code (Leon Romanovsky and Jason Gunthorpe)
- Clarify that dma_map_benchmark is not a kernel self-test, but
standalone tool (Qinxin Xia)
* tag 'dma-mapping-6.19-2025-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
dma-mapping: remove unused map_page callback
xen: swiotlb: Convert mapping routine to rely on physical address
x86: Use physical address for DMA mapping
sparc: Use physical address DMA mapping
powerpc: Convert to physical address DMA mapping
parisc: Convert DMA map_page to map_phys interface
MIPS/jazzdma: Provide physical address directly
alpha: Convert mapping routine to rely on physical address
dma-mapping: remove unused mapping resource callbacks
xen: swiotlb: Switch to physical address mapping callbacks
ARM: dma-mapping: Switch to physical address mapping callbacks
ARM: dma-mapping: Reduce struct page exposure in arch_sync_dma*()
dma-mapping: convert dummy ops to physical address mapping
dma-mapping: prepare dma_map_ops to conversion to physical address
tools/dma: move dma_map_benchmark from selftests to tools/dma
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Pull bitmap updates from Yury Norov:
- Runtime field_{get,prep}() (Geert)
- Rust ID pool updates (Alice)
- min_t() simplification (David)
- __sw_hweightN kernel-doc fixes (Andy)
- cpumask.h headers cleanup (Andy)
* tag 'bitmap-for-6.19' of github.com:/norov/linux: (32 commits)
rust_binder: use bitmap for allocation of handles
rust: id_pool: do not immediately acquire new ids
rust: id_pool: do not supply starting capacity
rust: id_pool: rename IdPool::new() to with_capacity()
rust: bitmap: add BitmapVec::new_inline()
rust: bitmap: add MAX_LEN and MAX_INLINE_LEN constants
cpumask: Don't use "proxy" headers
soc: renesas: Use bitfield helpers
clk: renesas: Use bitfield helpers
ALSA: usb-audio: Convert to common field_{get,prep}() helpers
soc: renesas: rz-sysc: Convert to common field_get() helper
pinctrl: ma35: Convert to common field_{get,prep}() helpers
iio: mlx90614: Convert to common field_{get,prep}() helpers
iio: dac: Convert to common field_prep() helper
gpio: aspeed: Convert to common field_{get,prep}() helpers
EDAC/ie31200: Convert to common field_get() helper
crypto: qat - convert to common field_get() helper
clk: at91: Convert to common field_{get,prep}() helpers
bitfield: Add non-constant field_{prep,get}() helpers
bitfield: Add less-checking __FIELD_{GET,PREP}()
...
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Commit 14e9a18b07ec ("rust: sync: atomic: Make Atomic*Ops pub(crate)")
added a `pub(crate)` import in the same "block" as the `pub` one,
without running `rustfmt`, which would sort them differently.
Instead of running `rustfmt` as-is, add a newline to keep the import
"blocks" with different visibilities separate.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull module updates from Daniel Gomez:
"Rust module parameter support:
- Add Rust module parameter support, enabling Rust kernel modules to
declare and use module parameters. The rust_minimal sample module
demonstrates this, and the rust null block driver will be the first
to use it in the next cycle. This also adds the Rust module files
under the modules subsystem as agreed between the Rust and modules
maintainers.
Hardening:
- Add compile-time check for embedded NUL characters in MODULE_*()
macros. This module metadata was once used (and maybe still) to
bypass license enforcement (LWN article from 2003):
https://lwn.net/Articles/82305/ [1]
MAINTAINERS:
- Add Aaron Tomlin as reviewer for the Modules subsystem"
* tag 'modules-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
MAINTAINERS: Add myself as reviewer for module support
module: Add compile-time check for embedded NUL characters
media: radio: si470x: Fix DRIVER_AUTHOR macro definition
media: dvb-usb-v2: lmedm04: Fix firmware macro definitions
modules: add rust modules files to MAINTAINERS
rust: samples: add a module parameter to the rust_minimal sample
rust: module: update the module macro with module parameter support
rust: module: use a reference in macros::module::module
rust: introduce module_param module
rust: str: add radix prefixed integer parsing functions
rust: sync: add `SetOnce`
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Selecting OF_GPIO is generally not allowed, it always gets enabled
when both GPIOLIB and OF are turned on.
The tb10x driver now warns about this after it was enabled for
compile-testing:
WARNING: unmet direct dependencies detected for OF_GPIO
Depends on [n]: GPIOLIB [=y] && OF [=n] && HAS_IOMEM [=y]
Selected by [y]:
- GPIO_TB10X [=y] && GPIOLIB [=y] && HAS_IOMEM [=y] && (ARC_PLAT_TB10X || COMPILE_TEST [=y])
OF_GPIO is not required for compile-testing and is already enabled
when the driver is usable, so just drop the 'select' line.
Fixes: 682fbb18e14c ("gpio: tb10x: allow building the module with COMPILE_TEST=y")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20251205095429.1291866-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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Currently, if the sleep flag is set, psi_dequeue() doesn't
change any of the psi_flags.
This is because psi_task_switch() will clear TSK_ONCPU as well
as other potential flags (TSK_RUNNING), and the assumption is
that a voluntary sleep always consists of a task being dequeued
followed shortly there after with a psi_sched_switch() call.
Proxy Execution changes this expectation, as mutex-blocked tasks
that would normally sleep stay on the runqueue. But in the case
where the mutex-owning task goes to sleep, or the owner is on a
remote cpu, we will then deactivate the blocked task shortly
after.
In that situation, the mutex-blocked task will have had its
TSK_ONCPU cleared when it was switched off the cpu, but it will
stay TSK_RUNNING. Then if we later dequeue it (as currently done
if we hit a case find_proxy_task() can't yet handle, such as the
case of the owner being on another rq or a sleeping owner)
psi_dequeue() won't change any state (leaving it TSK_RUNNING),
as it incorrectly expects a psi_task_switch() call to
immediately follow.
Later on when the task get woken/re-enqueued, and psi_flags are
set for TSK_RUNNING, we hit an error as the task is already
TSK_RUNNING:
psi: inconsistent task state! task=188:kworker/28:0 cpu=28 psi_flags=4 clear=0 set=4
To resolve this, extend the logic in psi_dequeue() so that
if the sleep flag is set, we also check if psi_flags have
TSK_ONCPU set (meaning the psi_task_switch is imminent) before
we do the shortcut return.
If TSK_ONCPU is not set, that means we've already switched away,
and this psi_dequeue call needs to clear the flags.
Fixes: be41bde4c3a8 ("sched: Add an initial sketch of the find_proxy_task() function")
Reported-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: Haiyue Wang <haiyuewa@163.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://patch.msgid.link/20251205012721.756394-1-jstultz@google.com
Closes: https://lore.kernel.org/lkml/20251117185550.365156-1-kprateek.nayak@amd.com/
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last task migrates out
When a task is migrated out, there is a probability that the tg->load_avg
value will become abnormal. The reason is as follows:
1. Due to the 1ms update period limitation in update_tg_load_avg(), there
is a possibility that the reduced load_avg is not updated to tg->load_avg
when a task migrates out.
2. Even though __update_blocked_fair() traverses the leaf_cfs_rq_list and
calls update_tg_load_avg() for cfs_rqs that are not fully decayed, the key
function cfs_rq_is_decayed() does not check whether
cfs->tg_load_avg_contrib is null. Consequently, in some cases,
__update_blocked_fair() removes cfs_rqs whose avg.load_avg has not been
updated to tg->load_avg.
Add a check of cfs_rq->tg_load_avg_contrib in cfs_rq_is_decayed(),
which fixes the case (2.) mentioned above.
Fixes: 1528c661c24b ("sched/fair: Ratelimit update to tg->load_avg")
Signed-off-by: xupengbo <xupengbo@oppo.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Aaron Lu <ziqianlu@bytedance.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: Aaron Lu <ziqianlu@bytedance.com>
Link: https://patch.msgid.link/20250827022208.14487-1-xupengbo@oppo.com
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rt_mutex_setprio() has only one caller: rt_mutex_adjust_prio(). It
expects that task_struct::pi_lock and rt_mutex_base::wait_lock are held.
Both locks are raw_spinlock_t and are acquired with disabled interrupts.
Nevertheless rt_mutex_setprio() disables preemption while invoking
__balance_callbacks() and raw_spin_rq_unlock(). Even if one of the
balance callbacks unlocks the rq then it must not enable interrupts
because rt_mutex_base::wait_lock is still locked.
Therefore interrupts should remain disabled and disabling preemption is
not needed.
Commit 4c9a4bc89a9cc ("sched: Allow balance callbacks for check_class_changed()")
adds a preempt-disable section to rt_mutex_setprio() and
__sched_setscheduler(). In __sched_setscheduler() the preemption is
disabled before rq is unlocked and interrupts enabled but I don't see
why it makes a difference in rt_mutex_setprio().
Remove the preempt_disable() section from rt_mutex_setprio().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20251127155529.t_sTatE4@linutronix.de
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The sched_class::task_tick() method is called on the donor
sched_class, and sched_tick() hands it rq->donor as argument,
which is consistent.
However, while hrtick() uses the donor sched_class, it then passes
rq->curr, which is inconsistent. Fix it.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: John Stultz <jstultz@google.com>
Link: https://patch.msgid.link/20250918080205.442967033@infradead.org
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A single case of space-Tab noise snuck in recently.
Fixes: 36569780b0d6 ("sched: Change nr_uninterruptible type to unsigned long")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/176478595428.498.13816176784792752599.tip-bot2@tip-bot2
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Arnd reported an x86 randconfig using gcc-15 tripped over
__scoped_seqlock_bug(). Turns out GCC chose not to inline the
scoped_seqlock helper functions and as such was not able to optimize
properly.
[ mingo: Clang fails the build too in some circumstances. ]
Reported-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Link: https://patch.msgid.link/20251204104332.GG2528459@noisy.programming.kicks-ass.net
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git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Arch Topology:
- Move parse_acpi_topology() from arm64 to common code for reuse in
RISC-V
CPU:
- Expose housekeeping CPUs through /sys/devices/system/cpu/housekeeping
- Print a newline (or 0x0A) instead of '(null)' reading
/sys/devices/system/cpu/nohz_full when nohz_full= is not set
debugfs
- Remove (broken) 'no-mount' mode
- Remove redundant access mode checks in debugfs_get_tree() and
debugfs_create_*() functions
Devres:
- Remove unused devm_free_percpu() helper
- Move devm_alloc_percpu() from device.h to devres.h
Firmware Loader:
- Replace simple_strtol() with kstrtoint()
- Do not call cancel_store() when no upload is in progress
kernfs:
- Increase struct super_block::maxbytes to MAX_LFS_FILESIZE
- Fix a missing unwind path in __kernfs_new_node()
Misc:
- Increase the name size in struct auxiliary_device_id to 40
characters
- Replace system_unbound_wq with system_dfl_wq and add WQ_PERCPU to
alloc_workqueue()
Platform:
- Replace ERR_PTR() with IOMEM_ERR_PTR() in platform ioremap
functions
Rust:
- Auxiliary:
- Unregister auxiliary device on parent device unbind
- Move parent() to impl Device; implement device context aware
parent() for Device<Bound>
- Illustrate how to safely obtain a driver's device private data
when calling from an auxiliary driver into the parant device
driver
- DebugFs:
- Implement support for binary large objects
- Device:
- Let probe() return the driver's device private data as pinned
initializer, i.e. impl PinInit<Self, Error>
- Implement safe accessor for a driver's device private data for
Device<Bound> (returned reference can't out-live driver binding
and guarantees the correct private data type)
- Implement AsBusDevice trait, to be used by class device
abstractions to derive the bus device type of the parent device
- DMA:
- Store raw pointer of allocation as NonNull
- Use start_ptr() and start_ptr_mut() to inherit correct
mutability of self
- FS:
- Add file::Offset type alias
- I2C:
- Add abstractions for I2C device / driver infrastructure
- Implement abstractions for manual I2C device registrations
- I/O:
- Use "kernel vertical" style for imports
- Define ResourceSize as resource_size_t
- Move ResourceSize to top-level I/O module
- Add type alias for phys_addr_t
- Implement Rust version of read_poll_timeout_atomic()
- PCI:
- Use "kernel vertical" style for imports
- Move I/O and IRQ infrastructure to separate files
- Add support for PCI interrupt vectors
- Implement TryInto<IrqRequest<'a>> for IrqVector<'a> to convert
an IrqVector bound to specific pci::Device into an IrqRequest
bound to the same pci::Device's parent Device
- Leverage pin_init_scope() to get rid of redundant Result in IRQ
methods
- PinInit:
- Add {pin_}init_scope() to execute code before creating an
initializer
- Platform:
- Leverage pin_init_scope() to get rid of redundant Result in IRQ
methods
- Timekeeping:
- Implement abstraction of udelay()
- Uaccess:
- Implement read_slice_partial() and read_slice_file() for
UserSliceReader
- Implement write_slice_partial() and write_slice_file() for
UserSliceWriter
sysfs:
- Prepare the constification of struct attribute"
* tag 'driver-core-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (75 commits)
rust: pci: fix build failure when CONFIG_PCI_MSI is disabled
debugfs: Fix default access mode config check
debugfs: Remove broken no-mount mode
debugfs: Remove redundant access mode checks
driver core: Check drivers_autoprobe for all added devices
driver core: WQ_PERCPU added to alloc_workqueue users
driver core: replace use of system_unbound_wq with system_dfl_wq
tick/nohz: Expose housekeeping CPUs in sysfs
tick/nohz: avoid showing '(null)' if nohz_full= not set
sysfs/cpu: Use DEVICE_ATTR_RO for nohz_full attribute
kernfs: fix memory leak of kernfs_iattrs in __kernfs_new_node
fs/kernfs: raise sb->maxbytes to MAX_LFS_FILESIZE
mod_devicetable: Bump auxiliary_device_id name size
sysfs: simplify attribute definition macros
samples/kobject: constify 'struct foo_attribute'
samples/kobject: add is_visible() callback to attribute group
sysfs: attribute_group: enable const variants of is_visible()
sysfs: introduce __SYSFS_FUNCTION_ALTERNATIVE()
sysfs: transparently handle const pointers in ATTRIBUTE_GROUPS()
sysfs: attribute_group: allow registration of const attribute
...
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Pull IPMI updates from Corey Minyard:
"Minor IPMI fixes:
- Some device tree cleanups and a maintainer add
- Fix a race when handling channel updates that could result in
errors being reported to the user in some cases"
* tag 'for-linus-6.19-1' of https://github.com/cminyard/linux-ipmi:
MAINTAINERS: Add entry on Loongson-2K IPMI driver
dt-bindings: ipmi: Convert aspeed,ast2400-ibt-bmc to DT schema
dt-bindings: ipmi: Convert nuvoton,npcm750-kcs-bmc to DT schema
ipmi: Skip channel scan if channels are already marked ready
ipmi: Fix __scan_channels() failing to rescan channels
ipmi: Fix the race between __scan_channels() and deliver_response()
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
- The DELLBOSS VD SATA controller times out when sending I/Os of size
4096 KiB or larger, even though it claims LBA48 support, which per
the ACS standard requires support for a maximum command size of
65535 sectors, i.e. 32 MiB - 512. Thus, quirk the device so that it
sets a lower maximum command size (me)
* tag 'ata-6.19-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-core: Quirk DELLBOSS VD max_sectors
ata: libata: Move quirk flags to their own enum
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull more tpm updates from Jarkko Sakkinen:
"This is targeted for tpm2-sessions updates.
There's two bug fixes and two more cosmetic tweaks for HMAC protected
sessions. They provide a baseine for further improvements to be
implemented during the the course of the release cycle"
* tag 'tpmdd-sessions-next-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm2-sessions: Open code tpm_buf_append_hmac_session()
tpm2-sessions: Remove 'attributes' parameter from tpm_buf_append_auth
tpm2-sessions: Fix tpm2_read_public range checks
tpm2-sessions: Fix out of range indexing in name_size
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media kernel-doc fix from Mauro Carvalho Chehab:
"A fix to shut up a kernel-doc warning on c3-isp driver"
* tag 'media/v6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: uapi: c3-isp: Fix documentation warning
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Pull SCSI updates from James Bottomley:
"Usual driver updates (ufs, lpfc, target, qla2xxx) plus assorted
cleanups and fixes including the WQ_PERCPU series.
The biggest core change is the new allocation of pseudo-devices which
allow the sending of internal commands to a given SCSI target"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (147 commits)
scsi: MAINTAINERS: Add the UFS include directory
scsi: scsi_debug: Support injecting unaligned write errors
scsi: qla2xxx: Fix improper freeing of purex item
scsi: ufs: rockchip: Fix compile error without CONFIG_GPIOLIB
scsi: ufs: rockchip: Reset controller on PRE_CHANGE of hce enable notify
scsi: ufs: core: Use scsi_device_busy()
scsi: ufs: core: Fix single doorbell mode support
scsi: pm80xx: Add WQ_PERCPU to alloc_workqueue() users
scsi: target: Add WQ_PERCPU to alloc_workqueue() users
scsi: qedi: Add WQ_PERCPU to alloc_workqueue() users
scsi: target: ibmvscsi: Add WQ_PERCPU to alloc_workqueue() users
scsi: qedf: Add WQ_PERCPU to alloc_workqueue() users
scsi: bnx2fc: Add WQ_PERCPU to alloc_workqueue() users
scsi: be2iscsi: Add WQ_PERCPU to alloc_workqueue() users
scsi: message: fusion: Add WQ_PERCPU to alloc_workqueue() users
scsi: lpfc: WQ_PERCPU added to alloc_workqueue() users
scsi: scsi_transport_fc: WQ_PERCPU added to alloc_workqueue users()
scsi: scsi_dh_alua: WQ_PERCPU added to alloc_workqueue() users
scsi: qla2xxx: WQ_PERCPU added to alloc_workqueue() users
scsi: target: sbp: Replace use of system_unbound_wq with system_dfl_wq
...
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Most common macros are defined in asm.h, asmmacro.h and stackframe.h.
Adjust these macros for both 32BIT and 64BIT.
Add SETUP_TWINS (Setup Trampoline Windows) and SETUP_MODES (Setup CRMD/
PRMD/EUEN) which will be used later.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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32BIT platforms only have 32bit CSR/IOCSR registers, 64BIT platforms
have both 32bit/64bit CSR/IOCSR registers. Now there are both 32bit and
64bit CSR accessors:
csr_read32()/csr_write32()/csr_xchg32();
csr_read64()/csr_write64()/csr_xchg64();
Some CSR registers (address and timer registers) are 32bit length on
32BIT platform and 64bit length on 64BIT platform. To avoid #ifdefs here
and there, they need adaptive accessors, so we define and use:
csr_read()/csr_write()/csr_xchg();
IOCSR doesn't have a "natural length", which means a 64bit register can
be treated as two 32bit registers, so we just use two 32bit accessors to
emulate a 64bit accessors.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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LoongArch64 has both AMO and LL/SC instructions, while LoongArch32 only
has LL/SC intstructions. So we add a Kconfig option CPU_HAS_AMO here and
implement atomic operations (also including local operations and percpu
operations) for both 32BIT and 64BIT platforms.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Loongson-2K3000 has a new PCI ID (0x7a46) for its display controller,
Add it for pci_fixup_vgadev() since we prefer a discrete graphics card
as default boot device if present.
Cc: stable@vger.kernel.org
Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Add and use some macros for AVEC interrupt controller, instead of using
magic numbers.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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For thread_count, the current calculation method has a maximum of 255,
which may not be sufficient in the future. Therefore, we are correcting
it now.
Reference: SMBIOS Specification, 7.5 Processor Information (Type 4)[1]
[1]: https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.9.0.pdf
Cc: stable@vger.kernel.org
Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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It is better to use unsigned long rather than long for _end and _text to
calculate the kernel length.
Cc: stable@vger.kernel.org # v6.3+
Fixes: e5f02b51fa0c ("LoongArch: Add support for kernel address space layout randomization (KASLR)")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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The __pmd() and __pte() helper macros provide the correct initialization
syntax and abstraction for the pmd_t and pte_t types.
Use __pmd() to fix follow warning about __swp_entry_to_pmd() with gcc-15
under specific configs [1] :
In file included from ./include/linux/pgtable.h:6,
from ./include/linux/mm.h:31,
from ./include/linux/pagemap.h:8,
from arch/loongarch/mm/init.c:14:
./include/linux/swapops.h: In function ‘swp_entry_to_pmd’:
./arch/loongarch/include/asm/pgtable.h:302:34: error: missing braces around initializer [-Werror=missing-braces]
302 | #define __swp_entry_to_pmd(x) ((pmd_t) { (x).val | _PAGE_HUGE })
| ^
./include/linux/swapops.h:559:16: note: in expansion of macro ‘__swp_entry_to_pmd’
559 | return __swp_entry_to_pmd(arch_entry);
| ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Also update __swp_entry_to_pte() to use __pte() for consistency.
[1]. https://download.01.org/0day-ci/archive/20251119/202511190316.luI90kAo-lkp@intel.com/config
Cc: stable@vger.kernel.org
Signed-off-by: Yuli Wang <wangyl5933@chinaunicom.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Now the optimized version of arch_dup_task_struct() for LoongArch
assumes 'thread' is the last member of 'task_struct'. But this is
not true if CONFIG_RANDSTRUCT is enabled after Linux-6.16.
So fix the arch_dup_task_struct() function for CONFIG_RANDSTRUCT by
copying the whole 'task_struct'.
Cc: stable@vger.kernel.org # 6.16+
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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When CONFIG_RANDSTRUCT enabled, members of task_struct are randomized.
There is a chance that TASK_STACK_CANARY be out of 12bit immediate's
range and causes build errors. TASK_STACK_CANARY is naturally aligned,
so fix it by replacing ld.d/st.d with ldptr.d/stptr.d which have 14bit
immediates.
Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511240656.0NaPcJs1-lkp@intel.com/
Suggested-by: Rui Wang <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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LoongArch has the bitrev.w instruction to reverse bits in a 32-bit
integer, thus there's no need to reverse the bytes and use bitrev.4b.
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Without HAVE_ARCH_BITREVERSE, the architecture-optimized bit reverse
implementations in arch/loongarch/include/asm/bitrev.h are not used at
all.
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Commit f2060bdc21d7 ("nfs/localio: add refcounting for each iocb IO
associated with NFS pgio header") inadvertantly reintroduced the same
potential for __put_cred() triggering BUG_ON(cred == current->cred) that
commit 992203a1fba5 ("nfs/localio: restore creds before releasing pageio
data") fixed.
Fix this by saving and restoring the cred around each {read,write}_iter
call within the respective for loop of nfs_local_call_{read,write} using
scoped_with_creds().
NOTE: this fix started by first reverting the following commits:
94afb627dfc2 ("nfs: use credential guards in nfs_local_call_read()")
bff3c841f7bd ("nfs: use credential guards in nfs_local_call_write()")
1d18101a644e ("Merge tag 'kernel-6.19-rc1.cred' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs")
followed by narrowly fixing the cred lifetime issue by using
scoped_with_creds(). In doing so, this commit's changes appear more
extensive than they really are (as evidenced by comparing to v6.18's
fs/nfs/localio.c).
Reported-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Acked-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/linux-next/20251205111942.4150b06f@canb.auug.org.au/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more SoC driver updates from Arnd Bergmann:
"These updates came a little late, or were based on a later 6.18-rc tag
than the others:
- A new driver for cache management on cxl devices with memory shared
in a coherent cluster. This is part of the drivers/cache/ tree, but
unlike the other drivers that back the dma-mapping interfaces, this
one is needed only during CPU hotplug.
- A shared branch for reset controllers using swnode infrastructure
- Added support for new SoC variants in the Amlogic soc_device
identification
- Minor updates in Freescale, Microchip, Samsung, and Apple SoC
drivers"
* tag 'soc-drivers-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
soc: samsung: exynos-pmu: fix device leak on regmap lookup
soc: samsung: exynos-pmu: Fix structure initialization
soc: fsl: qbman: use kmalloc_array() instead of kmalloc()
soc: fsl: qbman: add WQ_PERCPU to alloc_workqueue users
MAINTAINERS: Update email address for Christophe Leroy
MAINTAINERS: refer to intended file in STANDALONE CACHE CONTROLLER DRIVERS
cache: Support cache maintenance for HiSilicon SoC Hydra Home Agent
cache: Make top level Kconfig menu a boolean dependent on RISCV
MAINTAINERS: Add Jonathan Cameron to drivers/cache and add lib/cache_maint.c + header
arm64: Select GENERIC_CPU_CACHE_MAINTENANCE
lib: Support ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
soc: amlogic: meson-gx-socinfo: add new SoCs id
dt-bindings: arm: amlogic: meson-gx-ao-secure: support more SoCs
memregion: Support fine grained invalidate by cpu_cache_invalidate_memregion()
memregion: Drop unused IORES_DESC_* parameter from cpu_cache_invalidate_memregion()
dt-bindings: cache: sifive,ccache0: add a pic64gx compatible
MAINTAINERS: rename Microchip RISC-V entry
MAINTAINERS: add new soc drivers to Microchip RISC-V entry
soc: microchip: add mfd drivers for two syscon regions on PolarFire SoC
dt-bindings: soc: microchip: document the simple-mfd syscon on PolarFire SoC
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"This is the first half of the driver changes:
- A treewide interface change to the "syscore" operations for power
management, as a preparation for future Tegra specific changes
- Reset controller updates with added drivers for LAN969x, eic770 and
RZ/G3S SoCs
- Protection of system controller registers on Renesas and Google
SoCs, to prevent trivially triggering a system crash from e.g.
debugfs access
- soc_device identification updates on Nvidia, Exynos and Mediatek
- debugfs support in the ST STM32 firewall driver
- Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI
- Cleanups for memory controller support on Nvidia and Renesas"
* tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits)
memory: tegra186-emc: Fix missing put_bpmp
Documentation: reset: Remove reset_controller_add_lookup()
reset: fix BIT macro reference
reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe
reset: th1520: Support reset controllers in more subsystems
reset: th1520: Prepare for supporting multiple controllers
dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys
dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets
reset: remove legacy reset lookup code
clk: davinci: psc: drop unused reset lookup
reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC
reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY
dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support
reset: eswin: Add eic7700 reset driver
dt-bindings: reset: eswin: Documentation for eic7700 SoC
reset: sparx5: add LAN969x support
dt-bindings: reset: microchip: Add LAN969x support
soc: rockchip: grf: Add select correct PWM implementation on RK3368
soc/tegra: pmc: Add USB wake events for Tegra234
amba: tegra-ahb: Fix device leak on SMMU enable
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull new SoC families update from Arnd Bergmann:
"These three new families of SoC are split out into a separate branch
because they touch multiple parts of the source tree and are better
left separate for the initial merge.
- Black Sesame Technologies C1200 is an automotive SoC using
Cortex-A78 CPU cores
- Anlogic dr1v90 (not to be confused with Amlogic) is an FPGA
platform using a single nuclei ux900 RISC-V core
- Tenstorrent Blackhole is a Neural Processing Unit using custom
"Tensix" cores for computation offload managed by Linux running on
SiFive X280 RISC-V cores.
Support for all three is rather rudimentary at the moment and will get
improved as device drivers are merged through other tree"
* tag 'soc-newsoc-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
MAINTAINERS: add Black Sesame Technologies (BST) ARM SoC support
arm64: defconfig: enable BST platform support
arm64: dts: bst: add support for Black Sesame Technologies C1200 CDCU1.0 board
arm64: Kconfig: add ARCH_BST for Black Sesame Technologies SoCs
dt-bindings: arm: add Black Sesame Technologies (bst) SoC
dt-bindings: vendor-prefixes: Add Black Sesame Technologies Co., Ltd.
MAINTAINERS: Setup support for Anlogic tree
riscv: defconfig: Enable Anlogic SoC
riscv: dts: anlogic: Add Milianke MLKPAI FS01 board
riscv: dts: Add initial Anlogic DR1V90 SoC device tree
riscv: Add Anlogic SoC famly Kconfig support
dt-bindings: serial: snps-dw-apb-uart: Add Anlogic DR1V90 uart
dt-bindings: timer: Add Anlogic DR1V90 ACLINT MTIMER
dt-bindings: riscv: Add Anlogic DR1V90
dt-bindings: riscv: Add Nuclei UX900 compatibles
dt-bindings: vendor-prefixes: Add Anlogic, Milianke and Nuclei
riscv: defconfig: Enable Tenstorrent SoCs
riscv: Kconfig.socs: Add ARCH_TENSTORRENT for Tenstorrent SoCs
riscv: dts: Add Tenstorrent Blackhole SoC PCIe cards
dt-bindings: interrupt-controller: Add Tenstorrent Blackhole compatible
...
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Pull SoC devicetree updates from Arnd Bergmann:
"Three new SoCs got added in existing arm64 chip families:
- Renesas R-Car X5H (R8A78000) is a new generation of automotive
SoCs, based on 16 Cortex-A720 (Armv9.2) cores, which makes the the
currently highest-perforance embedded SoC.
- TI AM62L is a new variant of the AM62 family of industrial SoCs,
this one comes without a GPU.
- Qualcomm MSM8937 (Snapdragon 430) is an older mobile phone chip
based on Cortex-A53, and closely related to MSM8917 (Snapdragn
425), which we already support.
In addition, there are a good number of newly supported machines
across SoC families:
- Two Aspeed AST2600 (Cortex-A7) based BMC setups for large servers
- Mobile Phones and tables based on Mediatek MT6582, Nvidia Tegra124,
Qualcomm MSM8937 and Qualcomm MSM8939,
- Two Laptops based on Qualcomm SoCs: one using the older sdm850, the
other using x1p42100.
- One Router based on Rockchips RK3568
- 24 variants of the Enclustra Mercury system-on-module, all based on
32-bit Intel/Altera SocFPGA chips, plus two boards using 64-bit
SocFPGA Agilex chips..
- 30 industrial/embedded boards and single-board computers, using
various chips from NXP, Rockchips, Mediatek, TI, Amlogic, Qualcomm,
Spacemit, and Starfive.
In total there are 783 commits here, the majority of these improving
hardware support and cleaning up devicetree files across the tree,
with the majority of the changes going into the Qualcomm, NXP, Renesas
and Rockchips platforms"
* tag 'soc-dt-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (782 commits)
arm64: dts: mediatek: mt8195: Fix address range for JPEG decoder core 1
ARM: dts: samsung: exynos4412-midas: turn off SDIO WLAN chip during system suspend
ARM: dts: samsung: exynos4210-trats: turn off SDIO WLAN chip during system suspend
ARM: dts: samsung: exynos4210-i9100: turn off SDIO WLAN chip during system suspend
ARM: dts: samsung: universal_c210: turn off SDIO WLAN chip during system suspend
arm64: dts: amlogic: meson-g12b: Fix L2 cache reference for S922X CPUs
arm64: dts: Add gpio_intc node for Amlogic S7D SoCs
arm64: dts: Add gpio_intc node for Amlogic S7 SoCs
arm64: dts: Add gpio_intc node for Amlogic S6 SoCs
arm64: dts: amlogic: s7d: add ao secure node
arm64: dts: amlogic: s7: add ao secure node
arm64: dts: amlogic: s6: add ao secure node
arm64: dts: amlogic: Fix the register name of the 'DBI' region
dts: arm64: amlogic: add a5 pinctrl node
arm64: dts: amlogic: s7d: add power domain controller node
arm64: dts: amlogic: s7: add power domain controller node
arm64: dts: amlogic: s6: add power domain controller node
dts: arm64: amlogic: Add ISP related nodes for C3
arm64: dts: meson: add initial device-tree for Tanix TX9 Pro
dt-bindings: arm: amlogic: add support for Tanix TX9 Pro
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC ARM code updates from Arnd Bergmann:
"These are very minimal changes for 32-bit Arm platform code, enabling
SMP bringup for one more SoC variant (mt6582) among spelling changes
and a build warning fix"
* tag 'soc-arm-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: omap1: avoid symbol clashes in fiq handler
ARM: gemini: fix typos in comments
ARM: versatile: Fix typo in versatile.c
ARM: OMAP2+: Fix falg->flag typo in omap_smc2()
ARM: mediatek: add MT6582 smp bring up code
ARM: mediatek: add board_dt_compat entry for the MT6582 SoC
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
"As usual, a number of newly added drivers get enabled in the arm64
defconfig, in addition to minor housekeeping work on defconfig files
for arm32, arm64 and riscv"
* tag 'soc-defconfig-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
arm64: defconfig: enable Exynos ACPM clocks
arm64: defconfig: Remove the redundant SCHED_MC/SCHED_SMT
ARM: multi_v7_defconfig: Enable TI PRU Ethernet driver
arm64: defconfig: enable i.MX AIPSTZ driver
ARM: mxs_defconfig: enable sound drivers for imx28-amarula-rmm
arm64: defconfig: Enable i.MX95 drivers for pinctrl, Ethernet and PCIe
arm64: defconfig: enable rockchip camera interface
ARM: tegra: Enable EXT4 for Tegra
arm64: defconfig: Enable NVIDIA VRS PSEQ RTC
arm64: defconfig: Enable SX150x GPIO expander driver
riscv: defconfig: enable SPI_FSL_QUADSPI as a module
ARM: at91: at91_dt_defconfig: set MMC_SPI to module
arm64: defconfig: Build NSS clock controller driver for IPQ5424
arm64: defconfig: Enable SCSI UFS Crypto and Block Inline encryption drivers
arm64: defconfig: Add M31 eUSB2 PHY config
arm64: defconfig: Enable configs for Fairphone 3, 4, 5 smartphones
arm64: defconfig: Enable two Novatek display panels for MTP8750 and Tianma
arm64: defconfig: Enable RZ/T2H / RZ/N2H ADC driver
ARM: shmobile: defconfig: Refresh for v6.18-rc1
arm64: defconfig: Enable DW HDMI QP CEC support
...
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Pull KVM updates from Paolo Bonzini:
"ARM:
- Support for userspace handling of synchronous external aborts
(SEAs), allowing the VMM to potentially handle the abort in a
non-fatal manner
- Large rework of the VGIC's list register handling with the goal of
supporting more active/pending IRQs than available list registers
in hardware. In addition, the VGIC now supports EOImode==1 style
deactivations for IRQs which may occur on a separate vCPU than the
one that acked the IRQ
- Support for FEAT_XNX (user / privileged execute permissions) and
FEAT_HAF (hardware update to the Access Flag) in the software page
table walkers and shadow MMU
- Allow page table destruction to reschedule, fixing long
need_resched latencies observed when destroying a large VM
- Minor fixes to KVM and selftests
Loongarch:
- Get VM PMU capability from HW GCFG register
- Add AVEC basic support
- Use 64-bit register definition for EIOINTC
- Add KVM timer test cases for tools/selftests
RISC/V:
- SBI message passing (MPXY) support for KVM guest
- Give a new, more specific error subcode for the case when in-kernel
AIA virtualization fails to allocate IMSIC VS-file
- Support KVM_DIRTY_LOG_INITIALLY_SET, enabling dirty log gradually
in small chunks
- Fix guest page fault within HLV* instructions
- Flush VS-stage TLB after VCPU migration for Andes cores
s390:
- Always allocate ESCA (Extended System Control Area), instead of
starting with the basic SCA and converting to ESCA with the
addition of the 65th vCPU. The price is increased number of exits
(and worse performance) on z10 and earlier processor; ESCA was
introduced by z114/z196 in 2010
- VIRT_XFER_TO_GUEST_WORK support
- Operation exception forwarding support
- Cleanups
x86:
- Skip the costly "zap all SPTEs" on an MMIO generation wrap if MMIO
SPTE caching is disabled, as there can't be any relevant SPTEs to
zap
- Relocate a misplaced export
- Fix an async #PF bug where KVM would clear the completion queue
when the guest transitioned in and out of paging mode, e.g. when
handling an SMI and then returning to paged mode via RSM
- Leave KVM's user-return notifier registered even when disabling
virtualization, as long as kvm.ko is loaded. On reboot/shutdown,
keeping the notifier registered is ok; the kernel does not use the
MSRs and the callback will run cleanly and restore host MSRs if the
CPU manages to return to userspace before the system goes down
- Use the checked version of {get,put}_user()
- Fix a long-lurking bug where KVM's lack of catch-up logic for
periodic APIC timers can result in a hard lockup in the host
- Revert the periodic kvmclock sync logic now that KVM doesn't use a
clocksource that's subject to NTP corrections
- Clean up KVM's handling of MMIO Stale Data and L1TF, and bury the
latter behind CONFIG_CPU_MITIGATIONS
- Context switch XCR0, XSS, and PKRU outside of the entry/exit fast
path; the only reason they were handled in the fast path was to
paper of a bug in the core #MC code, and that has long since been
fixed
- Add emulator support for AVX MOV instructions, to play nice with
emulated devices whose guest drivers like to access PCI BARs with
large multi-byte instructions
x86 (AMD):
- Fix a few missing "VMCB dirty" bugs
- Fix the worst of KVM's lack of EFER.LMSLE emulation
- Add AVIC support for addressing 4k vCPUs in x2AVIC mode
- Fix incorrect handling of selective CR0 writes when checking
intercepts during emulation of L2 instructions
- Fix a currently-benign bug where KVM would clobber SPEC_CTRL[63:32]
on VMRUN and #VMEXIT
- Fix a bug where KVM corrupt the guest code stream when re-injecting
a soft interrupt if the guest patched the underlying code after the
VM-Exit, e.g. when Linux patches code with a temporary INT3
- Add KVM_X86_SNP_POLICY_BITS to advertise supported SNP policy bits
to userspace, and extend KVM "support" to all policy bits that
don't require any actual support from KVM
x86 (Intel):
- Use the root role from kvm_mmu_page to construct EPTPs instead of
the current vCPU state, partly as worthwhile cleanup, but mostly to
pave the way for tracking per-root TLB flushes, and elide EPT
flushes on pCPU migration if the root is clean from a previous
flush
- Add a few missing nested consistency checks
- Rip out support for doing "early" consistency checks via hardware
as the functionality hasn't been used in years and is no longer
useful in general; replace it with an off-by-default module param
to WARN if hardware fails a check that KVM does not perform
- Fix a currently-benign bug where KVM would drop the guest's
SPEC_CTRL[63:32] on VM-Enter
- Misc cleanups
- Overhaul the TDX code to address systemic races where KVM (acting
on behalf of userspace) could inadvertantly trigger lock contention
in the TDX-Module; KVM was either working around these in weird,
ugly ways, or was simply oblivious to them (though even Yan's
devilish selftests could only break individual VMs, not the host
kernel)
- Fix a bug where KVM could corrupt a vCPU's cpu_list when freeing a
TDX vCPU, if creating said vCPU failed partway through
- Fix a few sparse warnings (bad annotation, 0 != NULL)
- Use struct_size() to simplify copying TDX capabilities to userspace
- Fix a bug where TDX would effectively corrupt user-return MSR
values if the TDX Module rejects VP.ENTER and thus doesn't clobber
host MSRs as expected
Selftests:
- Fix a math goof in mmu_stress_test when running on a single-CPU
system/VM
- Forcefully override ARCH from x86_64 to x86 to play nice with
specifying ARCH=x86_64 on the command line
- Extend a bunch of nested VMX to validate nested SVM as well
- Add support for LA57 in the core VM_MODE_xxx macro, and add a test
to verify KVM can save/restore nested VMX state when L1 is using
5-level paging, but L2 is not
- Clean up the guest paging code in anticipation of sharing the core
logic for nested EPT and nested NPT
guest_memfd:
- Add NUMA mempolicy support for guest_memfd, and clean up a variety
of rough edges in guest_memfd along the way
- Define a CLASS to automatically handle get+put when grabbing a
guest_memfd from a memslot to make it harder to leak references
- Enhance KVM selftests to make it easer to develop and debug
selftests like those added for guest_memfd NUMA support, e.g. where
test and/or KVM bugs often result in hard-to-debug SIGBUS errors
- Misc cleanups
Generic:
- Use the recently-added WQ_PERCPU when creating the per-CPU
workqueue for irqfd cleanup
- Fix a goof in the dirty ring documentation
- Fix choice of target for directed yield across different calls to
kvm_vcpu_on_spin(); the function was always starting from the first
vCPU instead of continuing the round-robin search"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (260 commits)
KVM: arm64: at: Update AF on software walk only if VM has FEAT_HAFDBS
KVM: arm64: at: Use correct HA bit in TCR_EL2 when regime is EL2
KVM: arm64: Document KVM_PGTABLE_PROT_{UX,PX}
KVM: arm64: Fix spelling mistake "Unexpeced" -> "Unexpected"
KVM: arm64: Add break to default case in kvm_pgtable_stage2_pte_prot()
KVM: arm64: Add endian casting to kvm_swap_s[12]_desc()
KVM: arm64: Fix compilation when CONFIG_ARM64_USE_LSE_ATOMICS=n
KVM: arm64: selftests: Add test for AT emulation
KVM: arm64: nv: Expose hardware access flag management to NV guests
KVM: arm64: nv: Implement HW access flag management in stage-2 SW PTW
KVM: arm64: Implement HW access flag management in stage-1 SW PTW
KVM: arm64: Propagate PTW errors up to AT emulation
KVM: arm64: Add helper for swapping guest descriptor
KVM: arm64: nv: Use pgtable definitions in stage-2 walk
KVM: arm64: Handle endianness in read helper for emulated PTW
KVM: arm64: nv: Stop passing vCPU through void ptr in S2 PTW
KVM: arm64: Call helper for reading descriptors directly
KVM: arm64: nv: Advertise support for FEAT_XNX
KVM: arm64: Teach ptdump about FEAT_XNX permissions
KVM: s390: Use generic VIRT_XFER_TO_GUEST_WORK functions
...
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The error NFS4ERR_NOTSUPP will be returned for operations that are
legal, but not supported by the server.
Fixes: 156b09482933 ("NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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struct nfs_local_kiocb used ____cacheline_aligned on its iters[] array
and as the structure evolved it caused a 61 byte hole to form. Fix
this by removing ____cacheline_aligned and reordering iters[] before
iter_is_dio_aligned[].
Fixes: 6a218b9c3183 ("nfs/localio: do not issue misaligned DIO out-of-order")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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This check to ensure dio_offset_align isn't larger than PAGE_SIZE is
no longer relevant (older iterations of NFS Direct was allocating
misaligned head and tail pages but no longer does, so this check isn't
needed).
Fixes: c817248fc831 ("nfs/localio: add proper O_DIRECT support for READ and WRITE")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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