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The perf subsystem assumes that all counters are by default per-CPU. So
the user space tool reads a counter from each CPU. However, the IOMMU
counters are system-wide and can be read from any CPU. Here we use a CPU
mask to restrict counting to one CPU to handle the issue. (with CPU
hotplug notifier to choose a different CPU if the chosen one is taken
off-line).
The CPU is exposed to /sys/bus/event_source/devices/dmar*/cpumask for
the user space perf tool.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20230128200428.1459118-6-kan.liang@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Implement the IOMMU performance monitor capability, which supports the
collection of information about key events occurring during operation of
the remapping hardware, to aid performance tuning and debug.
The IOMMU perfmon support is implemented as part of the IOMMU driver and
interfaces with the Linux perf subsystem.
The IOMMU PMU has the following unique features compared with the other
PMUs.
- Support counting. Not support sampling.
- Does not support per-thread counting. The scope is system-wide.
- Support per-counter capability register. The event constraints can be
enumerated.
- The available event and event group can also be enumerated.
- Extra Enhanced Commands are introduced to control the counters.
Add a new variable, struct iommu_pmu *pmu, to in the struct intel_iommu
to track the PMU related information.
Add iommu_pmu_register() and iommu_pmu_unregister() to register and
unregister a IOMMU PMU. The register function setup the IOMMU PMU ops
and invoke the standard perf_pmu_register() interface to register a PMU
in the perf subsystem. This patch only exposes the functions. The
following patch will enable them in the IOMMU driver.
The IOMMU PMUs can be found under /sys/bus/event_source/devices/dmar*
The available filters and event format can be found at the format folder
$ ls /sys/bus/event_source/devices/dmar1/format/
event event_group filter_ats filter_ats_en filter_page_table
filter_page_table_en
The supported events can be found at the events folder
$ ls /sys/bus/event_source/devices/dmar1/events/
ats_blocked fs_nonleaf_hit int_cache_hit_posted
iommu_mem_blocked iotlb_hit pasid_cache_lookup ss_nonleaf_hit
ctxt_cache_hit fs_nonleaf_lookup int_cache_lookup
iommu_mrds iotlb_lookup pg_req_posted ss_nonleaf_lookup
ctxt_cache_lookup int_cache_hit_nonposted iommu_clocks
iommu_requests pasid_cache_hit pw_occupancy
The command below illustrates filter usage with a simple example.
$ perf stat -e dmar1/iommu_requests,filter_ats_en=0x1,filter_ats=0x1/
-a sleep 1
Performance counter stats for 'system wide':
368,947 dmar1/iommu_requests,filter_ats_en=0x1,filter_ats=0x1/
1.002592074 seconds time elapsed
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20230128200428.1459118-5-kan.liang@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Add documentation for memory_failure's per NUMA node sysfs entries
Link: https://lkml.kernel.org/r/20230120034622.2698268-4-jiaqiyan@google.com
Signed-off-by: Jiaqi Yan <jiaqiyan@google.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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This patch exports the CAN channel ID as a sysfs attribute. The CAN
channel ID is a user-configurable u8/u32 identifier that can be set
individually for each CAN interface of a PEAK USB device.
Exporting the channel ID as a sysfs attribute allows users to easily read
the ID and to write udev rules that can match against the ID. This is
especially useful for PEAK USB devices that do not export a serial
number at SUB level.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Lukas Magel <lukas.magel@posteo.net>
Link: https://lore.kernel.org/all/20230116200932.157769-7-lukas.magel@posteo.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux into char-misc-next
Suzuki writes:
coresight: Updates for v6.3
- Dynamic TraceID allocation scheme for CoreSight trace source. Allows systems
with > 44 CPUs to use the ETMs. TraceID is advertised via AUX_OUTPUT_HWID
packets in perf.data. Also allows allocating trace-ids for non-CPU bound trace
components (e.g., Qualcomm TPDA).
- Support for Qualcomm TPDA and TPDM CoreSight devices.
- Support for Ultrasoc SMB CoreSight Sink buffer.
- Fixes for HiSilicon PTT driver
- MAINTAINERS update: Add Reviewer for HiSilicon PTT driver
- Bug fixes for CTI power management and sysfs mode
- Fix CoreSight ETM4x TRCSEQRSTEVRn access
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
* tag 'coresight-next-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux: (35 commits)
coresight: tmc: Don't enable TMC when it's not ready.
coresight: tpda: fix return value check in tpda_probe()
Coresight: tpda/tpdm: remove incorrect __exit annotation
coresight: perf: Output trace id only once
coresight: Fix uninitialised variable use in coresight_disable
Documentation: coresight: tpdm: Add dummy comment after sysfs list
Documentation: coresight: Extend title heading syntax in TPDM and TPDA documentation
Documentation: trace: Add documentation for TPDM and TPDA
dt-bindings: arm: Adds CoreSight TPDA hardware definitions
Coresight: Add TPDA link driver
coresight-tpdm: Add integration test support
coresight-tpdm: Add DSB dataset support
dt-bindings: arm: Add CoreSight TPDM hardware
Coresight: Add coresight TPDM source driver
coresight: core: Use IDR for non-cpu bound sources' paths.
coresight: trace-id: Add debug & test macros to Trace ID allocation
coresight: events: PERF_RECORD_AUX_OUTPUT_HW_ID used for Trace ID
kernel: events: Export perf_report_aux_output_id()
coresight: trace id: Remove legacy get trace ID function.
coresight: etmX.X: stm: Remove trace_id() callback
...
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Add a new attribute to the default control config group that allows
users to specify whether they want to enable the optional interrupt
endpoint for the VideoControl interface.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Link: https://lore.kernel.org/r/20230130105045.120886-3-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 98de59bfe4b2f ("take calculation of final prot in
security_mmap_file() into a helper") caused ima_file_mmap() to receive the
protections requested by the application and not those applied by the
kernel.
After restoring the original MMAP_CHECK behavior, existing attestation
servers might be broken due to not being ready to handle new entries
(previously missing) in the IMA measurement list.
Restore the original correct MMAP_CHECK behavior, instead of keeping the
current buggy one and introducing a new hook with the correct behavior.
Otherwise, there would have been the risk of IMA users not noticing the
problem at all, as they would actively have to update the IMA policy, to
switch to the correct behavior.
Also, introduce the new MMAP_CHECK_REQPROT hook to keep the current
behavior, so that IMA users could easily fix a broken attestation server,
although this approach is discouraged due to potentially missing
measurements.
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
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Due to holidays we started -next with more -fixes in-flight than
usual, and people have been asking where they are. Backmerge to get
things better in sync.
Conflicts:
- Tiny conflict in drm_fbdev_generic.c between variable rename and
missing error handling that got added.
- Conflict in drm_fb_helper.c between the added call to vgaswitcheroo
in drm_fb_helper_single_fb_probe and a refactor patch that extracted
lots of helpers and incidentally removed the dev local variable.
Readd it to make things compile.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The current discard_io_aware_gran is a fixed value, change it to be
configurable through the sys node.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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The user can set the max_sectors limit to any valid value via sysfs
/sys/block/<dev>/queue/max_sectors_kb attribute. If the device limits
are ever rescanned, though, the limit reverts back to the potentially
artificially low BLK_DEF_MAX_SECTORS value.
Preserve the user's setting as the max_sectors limit as long as it's
valid. The user can reset back to defaults by writing 0 to the sysfs
file.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20230105205146.3610282-3-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga into char-misc-next
Xu writes:
FPGA Manager changes for 6.3-rc1
Microchip:
- Ivan's reliability improvements for Microchip Polarfire FPGA
FPGA DFL doc:
- Randy and Yilun's kernel doc fixes.
The 2 patches, "fpga: dfl: more kernel-doc corrections" &
"fpga: dfl: kernel-doc corrections" conflicts with Matthew's FPGA
patch "fpga: dfl: add basic support for DFHv1" on tty-next. Yilun
resolved the conflicts on:
--branch for-next https://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga.git/
On that branch, Matthew's patch is applied first then kernel doc fixes
follow.
Intel m10 bmc MFD & sub devices:
- Lee's topic branch merged, to support new BMC board type with new
PMCI interface to host, as well as its new sub devices.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
* tag 'fpga-for-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga:
fpga: bridge: return errors in the show() method of the "state" attribute
fpga: dfl: more kernel-doc corrections
fpga: dfl: kernel-doc corrections
fpga: microchip-spi: separate data frame write routine
fpga: microchip-spi: rewrite status polling in a time measurable way
fpga: microchip-spi: move SPI I/O buffers out of stack
mfd: intel-m10-bmc: Add PMCI driver
fpga: m10bmc-sec: Make rsu status type specific
fpga: m10bmc-sec: Create helpers for rsu status/progress checks
mfd: intel-m10-bmc: Prefix register defines with M10BMC_N3000
fpga: intel-m10-bmc: Rework flash read/write
mfd: intel-m10-bmc: Support multiple CSR register layouts
mfd: intel-m10-bmc: Split into core and spi specific parts
mfd: intel-m10-bmc: Rename the local variables
mfd: intel-m10-bmc: Create m10bmc_platform_info for type specific info
mfd: intel-m10-bmc: Add missing includes to header
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Add the mfd driver for the Platform Management Component Interface
(PMCI) based interface of Intel MAX10 BMC controller.
PMCI is a software-visible interface, connected to card BMC which
provided the basic functionality of read/write BMC register. The access
to the register is done indirectly via a hardware controller/bridge
that handles read/write/clear commands and acknowledgments for the
commands.
Previously, intel-m10-bmc provided sysfs under
/sys/bus/spi/devices/... which is generalized in this change because
not all MAX10 BMC appear under SPI anymore.
Co-developed-by: Tianfei zhang <tianfei.zhang@intel.com>
Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Co-developed-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Co-developed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230116100845.6153-11-ilpo.jarvinen@linux.intel.com
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Stephen Rothwell reported htmldocs warnings when merging accel tree:
Documentation/ABI/testing/sysfs-driver-habanalabs:201: ERROR: Unexpected indentation.
Documentation/ABI/testing/sysfs-driver-habanalabs:201: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/ABI/testing/sysfs-driver-habanalabs:201: ERROR: Unexpected indentation.
Documentation/ABI/testing/sysfs-driver-habanalabs:201: WARNING: Block quote ends without a blank line; unexpected unindent.
Fix these by fixing alignment of list of card status returned by
/sys/class/habanalabs/hl<n>/status.
Link: https://lore.kernel.org/linux-next/20230120130634.61c3e857@canb.auug.org.au/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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As device status was changed recently, we must update the
documentation as well.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Similar to the justification in:
1b58b4cac6fc ("cxl/port: Record parent dport when adding ports")
...userspace wants to know the routing information for ports for
calculating the memdev order for region creation among other things.
Cache the information the kernel discovers at enumeration time in a
'parent_dport' attribute to save userspace the time of trawling sysfs
to recover the same information.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/167124082375.1626103.6047000000121298560.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v6.3
The main addition is a unified userspace interface for SCMI irrespective
of the underlying transport and along with some changed to refactor the
SCMI stack probing sequence.
1. SCMI unified userspace interface
This is to have a unified way of testing an SCMI platform firmware
implementation for compliance, fuzzing etc., from the perspective of
the non-secure OSPM irrespective of the underlying transport supporting
SCMI. It is just for testing/development and not a feature intended fo
use in production.
Currently an SCMI Compliance Suite[1] can only work by injecting SCMI
messages using the mailbox test driver only which makes it transport
specific and can't be used with any other transport like virtio,
smc/hvc, optee, etc. Also the shared memory can be transport specific
and it is better to even abstract/hide those details while providing
the userspace access. So in order to scale with any transport, we need
a unified interface for the same.
In order to achieve that, SCMI "raw mode support" is being added through
debugfs which is more configurable as well. A userspace application
can inject bare SCMI binary messages into the SCMI core stack; such
messages will be routed by the SCMI regular kernel stack to the backend
platform firmware using the configured transport transparently. This
eliminates the to know about the specific underlying transport
internals that will be taken care of by the SCMI core stack itself.
Further no additional changes needed in the device tree like in the
mailbox-test driver.
[1] https://gitlab.arm.com/tests/scmi-tests
2. Refactoring of the SCMI stack probing sequence
On some platforms, SCMI transport can be provide by OPTEE/TEE which
introduces certain dependency in the probe ordering. In order to address
the same, the SCMI bus is split into its own module which continues to
be initialized at subsys_initcall, while the SCMI core stack, including
its various transport backends (like optee, mailbox, virtio, smc), is
now moved into a separate module at module_init level.
This allows the other possibly dependent subsystems to register and/or
access SCMI bus well before the core SCMI stack and its dependent
transport backends.
* tag 'scmi-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (31 commits)
firmware: arm_scmi: Clarify raw per-channel ABI documentation
firmware: arm_scmi: Add per-channel raw injection support
firmware: arm_scmi: Add the raw mode co-existence support
firmware: arm_scmi: Call raw mode hooks from the core stack
firmware: arm_scmi: Reject SCMI drivers when configured in raw mode
firmware: arm_scmi: Add debugfs ABI documentation for raw mode
firmware: arm_scmi: Add core raw transmission support
firmware: arm_scmi: Add debugfs ABI documentation for common entries
firmware: arm_scmi: Populate a common SCMI debugfs root
debugfs: Export debugfs_create_str symbol
include: trace: Add platform and channel instance references
firmware: arm_scmi: Add internal platform/channel identifiers
firmware: arm_scmi: Move errors defs and code to common.h
firmware: arm_scmi: Add xfer helpers to provide raw access
firmware: arm_scmi: Add flags field to xfer
firmware: arm_scmi: Refactor scmi_wait_for_message_response
firmware: arm_scmi: Refactor polling helpers
firmware: arm_scmi: Refactor xfer in-flight registration routines
firmware: arm_scmi: Split bus and driver into distinct modules
firmware: arm_scmi: Introduce a new lifecycle for protocol devices
...
Link: https://lore.kernel.org/r/20230120162152.1438456-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Explain more in detail how the per-channel <m> identifier is chosen.
Suggested-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20230120122326.1932614-1-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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This can be used by userspace to determine the address size of the
running kernel.
It frees userspace from having to interpret this information from the
UTS machine field.
Userspace implementation:
https://github.com/util-linux/util-linux/pull/1966
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20221221-address-bits-v1-1-8446b13244ac@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Triple Modular Redundancy(TMR) subsystem contains three microblaze cores,
subsystem is fault-tolerant and continues to operate nominally after
encountering an error. Together with the capability to detect and recover
from errors, the implementation ensures the reliability of the entire
subsystem. TMR Manager is responsible for performing recovery of the
subsystem detects the fault via a break signal it invokes microblaze
software break handler which calls the tmr manager driver api to
update the error count and status, added support for fault detection
feature via sysfs interface.
Usage:
To know the break handler count(Error count):
cat /sys/devices/platform/amba_pl/44a10000.tmr_manager/errcnt
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.kedareswara.rao@amd.com>
Link: https://lore.kernel.org/r/20221125054113.122833-3-appana.durga.kedareswara.rao@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On a system configured with multiple transport channels, expose a few
additional debugfs per-channel entries to allow a user to explicitly select
which transport channel to use for the SCMI message injection.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230118121426.492864-18-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Add description of the debugfs SCMI raw mode ABI.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230118121426.492864-14-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Add description of the debugfs SCMI common ABI.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230118121426.492864-12-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Integration test for tpdm can help to generate the data for
verification of the topology during TPDM software bring up.
Sample:
echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink
echo 1 > /sys/bus/coresight/devices/tpdm0/enable_source
echo 1 > /sys/bus/coresight/devices/tpdm0/integration_test
echo 2 > /sys/bus/coresight/devices/tpdm0/integration_test
cat /dev/tmc_etf0 > /data/etf-tpdm0.bin
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230117145708.16739-6-quic_jinlmao@quicinc.com
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Update documentation describing sysfs node that could help to
configure hardware error threshold for users in the user space. And
describing sysfs node that could read the device isolated state.
Signed-off-by: Kai Ye <yekai13@huawei.com>
Link: https://lore.kernel.org/r/20221119074817.12063-3-yekai13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is a custom (non-USB IF) extension to the USB standard:
https://wicg.github.io/webusb/
This specification is published under the W3C Community Contributor
Agreement, which in particular allows to implement the specification
without any royalties.
The specification allows USB gadgets to announce an URL to landing
page and describes a Javascript interface for websites to interact
with the USB gadget, if the user allows it. It is currently
supported by Chromium-based browsers, such as Chrome, Edge and
Opera on all major operating systems including Linux.
This patch adds optional support for Linux-based USB gadgets
wishing to expose such a landing page.
During device enumeration, a host recognizes that the announced
USB version is at least 2.01, which means, that there are BOS
descriptors available. The device than announces WebUSB support
using a platform device capability. This includes a vendor code
under which the landing page URL can be retrieved using a
vendor-specific request.
Previously, the BOS descriptors would unconditionally include an
LPM related descriptor, as BOS descriptors were only ever sent
when the device was LPM capable. As this is no longer the case,
this patch puts this descriptor behind a lpm_capable condition.
Usage is modeled after os_desc descriptors:
echo 1 > webusb/use
echo "https://www.kernel.org" > webusb/landingPage
lsusb will report the device with the following lines:
Platform Device Capability:
bLength 24
bDescriptorType 16
bDevCapabilityType 5
bReserved 0
PlatformCapabilityUUID {3408b638-09a9-47a0-8bfd-a0768815b665}
WebUSB:
bcdVersion 1.00
bVendorCode 0
iLandingPage 1 https://www.kernel.org
Signed-off-by: Jó Ágila Bitsch <jgilab@gmail.com>
Link: https://lore.kernel.org/r/Y8Crf8P2qAWuuk/F@jo-einhundert
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the TraceID API to allocate ETM trace IDs dynamically.
As with the etm4x we allocate on enable / disable for perf,
allocate on enable / reset for sysfs.
Additionally we allocate on sysfs file read as both perf and sysfs
can read the ID before enabling the hardware.
Remove sysfs option to write trace ID - which is inconsistent with
both the dynamic allocation method and the fixed allocation method
previously used.
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230116124928.5440-7-mike.leach@linaro.org
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Document newly added DAMON sysfs interface files for DAMOS filtering on
the DAMON ABI document.
Link: https://lkml.kernel.org/r/20221205230830.144349-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Bring in documentation for UltraSoc SMB driver.
It simply describes the device, sysfs interface and the
firmware bindings.
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Junhao He <hejunhao3@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230114101302.62320-3-hejunhao3@huawei.com
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Remove Cornelia's email address from the file as suggested by her. List
linux-s390 mailing-list address as the primary contact instead.
Link: https://lore.kernel.org/linux-s390/8735d0oiq6.fsf@redhat.com/
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The description of dcc sysfs files is somewhat confusing and not effective.
Rewrite it to be clear.
While at it, also use literal code block for config sysfs examples and
remove redundant examples that are obvious.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221230135030.17002-3-bagasdotme@gmail.com
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/sys/kernel/debug/dcc/.../[list-number]/config documentation
kernel test robot reported htmldocs warnings:
Documentation/ABI/testing/debugfs-driver-dcc:34: WARNING: Unexpected indentation.
Documentation/ABI/testing/debugfs-driver-dcc:34: WARNING: Block quote ends without a blank line; unexpected unindent.
Fix these by fixing numbered list syntax on description of
/sys/kernel/debug/dcc/.../[list-number]/config, including adding blank line
separators as appropriate.
Link: https://lore.kernel.org/linux-doc/202212300426.eMLsZsvA-lkp@intel.com/
Fixes: 4cbe60cf5ad622 ("soc: qcom: dcc: Add driver support for Data Capture and Compare unit(DCC)")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221230135030.17002-2-bagasdotme@gmail.com
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We supported configuring fault injection parameter via sysfs w/
below commits, however, we forgot to add doc entry, fix it.
commit 087968974fcd ("f2fs: add fault injection to sysfs")
/sys/fs/f2fs/fault_injection/fault_*
commit 1ecc0c5c50ce ("f2fs: support configuring fault injection per superblock")
/sys/fs/f2fs/<device>/fault_*
Cc: Sheng Yong <shengyong@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Pull block fixes from Jens Axboe:
"The big change here is obviously the revert of the pktcdvd driver
removal. Outside of that, just minor tweaks. In detail:
- Re-instate the pktcdvd driver, which necessitates adding back
bio_copy_data_iter() and the fops->devnode() hook for now (me)
- Fix for splitting of a bio marked as NOWAIT, causing either nowait
reads or writes to error with EAGAIN even if parts of the IO
completed (me)
- Fix for ublk, punting management commands to io-wq as they can all
easily block for extended periods of time (Ming)
- Removal of SRCU dependency for the block layer (Paul)"
* tag 'block-2023-01-06' of git://git.kernel.dk/linux:
block: Remove "select SRCU"
Revert "pktcdvd: remove driver."
Revert "block: remove devnode callback from struct block_device_operations"
Revert "block: bio_copy_data_iter"
ublk: honor IO_URING_F_NONBLOCK for handling control command
block: don't allow splitting of a REQ_NOWAIT bio
block: handle bio_split_to_limits() NULL return
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Exporsing HotPlugDetect(HPD) helps userspace to infer HPD
state as defined by VESA DisplayPort Alt Mode on USB Type-C Standard.
This allows userspace to notify users for self help, for instance,
to hint user that the display port cable is probably detached (or)
the display port sink (viz., monitors ect.,) is un-powered.
Also helps to debug issues reported from field.
This change adds an additional attribute "hpd" to the existing
"displayport" attributes.
VESA DisplayPort Alt Mode on USB Type-C Standard defines how
HotPlugDetect(HPD) shall be supported on the USB-C connector
when operating in DisplayPort Alt Mode. This is a read only
node which reflects the current state of HPD.
Valid values:
- 1 when HPD’s logical state is high (HPD_High)
- 0 when HPD’s logical state is low (HPD_Low)
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20221211193755.1392128-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit f40eb99897af665f11858dd7b56edcb62c3f3c67.
There are apparently still users out there of this driver. While we'd
love to remove it to ease the maintenance burden, let's reinstate it
for now until better (userspace) solutions can be developed.
Link: https://lore.kernel.org/lkml/20230104190115.ceglfefco475ev6c@pali/
Reported-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The DCC is a DMA Engine designed to capture and store data
during system crash or software triggers. The DCC operates
based on user inputs via the debugfs interface. The user gives
addresses as inputs and these addresses are stored in the
dcc sram. In case of a system crash or a manual software
trigger by the user through the debugfs interface,
the dcc captures and stores the values at these addresses.
This patch contains the driver which has all the methods
pertaining to the debugfs interface, auxiliary functions to
support all the four fundamental operations of dcc namely
read, write, read/modify/write and loop. The probe method
here instantiates all the resources necessary for dcc to
operate mainly the dedicated dcc sram where it stores the
values. The DCC driver can be used for debugging purposes
without going for a reboot since it can perform software
triggers as well based on user inputs.
Also add the documentation for debugfs entries which explains
the functionalities of each debugfs file that has been created
for dcc.
The following is the justification of using debugfs interface
over the other alternatives like sysfs/ioctls
i) As can be seen from the debugfs attribute descriptions,
some of the debugfs attribute files here contains multiple
arguments which needs to be accepted from the user. This goes
against the design style of sysfs.
ii) The user input patterns have been made simple and convenient
in this case with the use of debugfs interface as user doesn't
need to shuffle between different files to execute one instruction
as was the case on using other alternatives.
Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Reviewed-by: Alex Elder <elder@linaro.org>
[bjorn: Fixed up a few indents and line wraps]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/644b4f66a358492a8a6738454035c3b120092fe7.1672148732.git.quic_schowdhu@quicinc.com
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening fixes from Kees Cook:
- Fix CFI failure with KASAN (Sami Tolvanen)
- Fix LKDTM + CFI under GCC 7 and 8 (Kristina Martsenko)
- Limit CONFIG_ZERO_CALL_USED_REGS to Clang > 15.0.6 (Nathan
Chancellor)
- Ignore "contents" argument in LoadPin's LSM hook handling
- Fix paste-o in /sys/kernel/warn_count API docs
- Use READ_ONCE() consistently for oops/warn limit reading
* tag 'hardening-v6.2-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
cfi: Fix CFI failure with KASAN
exit: Use READ_ONCE() for all oops/warn limit reads
security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6
lkdtm: cfi: Make PAC test work with GCC 7 and 8
docs: Fix path paste-o for /sys/kernel/warn_count
LoadPin: Ignore the "contents" argument of the LSM hooks
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New support:
- Qualcomm SDM670, SM6115 and SM6375 GPI controller support
- Ingenic JZ4755 dmaengine support
- Removal of iop-adma driver
Updates:
- Tegra support for dma-channel-mask
- at_hdmac cleanup and virt-chan support for this driver"
* tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (46 commits)
dmaengine: Revert "dmaengine: remove s3c24xx driver"
dmaengine: tegra: Add support for dma-channel-mask
dt-bindings: dmaengine: Add dma-channel-mask to Tegra GPCDMA
dmaengine: idxd: Remove linux/msi.h include
dt-bindings: dmaengine: qcom: gpi: add compatible for SM6375
dmaengine: idxd: Fix crc_val field for completion record
dmaengine: at_hdmac: Convert driver to use virt-dma
dmaengine: at_hdmac: Remove unused member of at_dma_chan
dmaengine: at_hdmac: Rename "chan_common" to "dma_chan"
dmaengine: at_hdmac: Rename "dma_common" to "dma_device"
dmaengine: at_hdmac: Use bitfield access macros
dmaengine: at_hdmac: Keep register definitions and structures private to at_hdmac.c
dmaengine: at_hdmac: Set include entries in alphabetic order
dmaengine: at_hdmac: Use pm_ptr()
dmaengine: at_hdmac: Use devm_clk_get()
dmaengine: at_hdmac: Use devm_platform_ioremap_resource
dmaengine: at_hdmac: Use devm_kzalloc() and struct_size()
dmaengine: at_hdmac: Introduce atc_get_llis_residue()
dmaengine: at_hdmac: s/atc_get_bytes_left/atc_get_residue
dmaengine: at_hdmac: Pass residue by address to avoid unnecessary implicit casts
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of driver core and kernfs changes for 6.2-rc1.
The "big" change in here is the addition of a new macro,
container_of_const() that will preserve the "const-ness" of a pointer
passed into it.
The "problem" of the current container_of() macro is that if you pass
in a "const *", out of it can comes a non-const pointer unless you
specifically ask for it. For many usages, we want to preserve the
"const" attribute by using the same call. For a specific example, this
series changes the kobj_to_dev() macro to use it, allowing it to be
used no matter what the const value is. This prevents every subsystem
from having to declare 2 different individual macros (i.e.
kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
the const value at build time, which having 2 macros would not do
either.
The driver for all of this have been discussions with the Rust kernel
developers as to how to properly mark driver core, and kobject,
objects as being "non-mutable". The changes to the kobject and driver
core in this pull request are the result of that, as there are lots of
paths where kobjects and device pointers are not modified at all, so
marking them as "const" allows the compiler to enforce this.
So, a nice side affect of the Rust development effort has been already
to clean up the driver core code to be more obvious about object
rules.
All of this has been bike-shedded in quite a lot of detail on lkml
with different names and implementations resulting in the tiny version
we have in here, much better than my original proposal. Lots of
subsystem maintainers have acked the changes as well.
Other than this change, included in here are smaller stuff like:
- kernfs fixes and updates to handle lock contention better
- vmlinux.lds.h fixes and updates
- sysfs and debugfs documentation updates
- device property updates
All of these have been in the linux-next tree for quite a while with
no problems"
* tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits)
device property: Fix documentation for fwnode_get_next_parent()
firmware_loader: fix up to_fw_sysfs() to preserve const
usb.h: take advantage of container_of_const()
device.h: move kobj_to_dev() to use container_of_const()
container_of: add container_of_const() that preserves const-ness of the pointer
driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion.
driver core: fix up missed scsi/cxlflash class.devnode() conversion.
driver core: fix up some missing class.devnode() conversions.
driver core: make struct class.devnode() take a const *
driver core: make struct class.dev_uevent() take a const *
cacheinfo: Remove of_node_put() for fw_token
device property: Add a blank line in Kconfig of tests
device property: Rename goto label to be more precise
device property: Move PROPERTY_ENTRY_BOOL() a bit down
device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*()
kernfs: fix all kernel-doc warnings and multiple typos
driver core: pass a const * into of_device_uevent()
kobject: kset_uevent_ops: make name() callback take a const *
kobject: kset_uevent_ops: make filter() callback take a const *
kobject: make kobject_namespace take a const *
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc and other driver subsystem changes
for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of
new driver development and minor fixes.
Highlights include:
- fastrpc driver updates
- iio new drivers and updates
- habanalabs driver updates for new hardware and features
- slimbus driver updates
- speakup module parameters added to aid in boot time configuration
- i2c probe_new conversions for lots of different drivers
- other small driver fixes and additions
One semi-interesting change in here is the increase of the number of
misc dynamic minors available to 1048448 to handle new huge-cpu
systems.
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits)
extcon: usbc-tusb320: Convert to i2c's .probe_new()
extcon: rt8973: Convert to i2c's .probe_new()
extcon: fsa9480: Convert to i2c's .probe_new()
extcon: max77843: Replace irqchip mask_invert with unmask_base
chardev: fix error handling in cdev_device_add()
mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
drivers: mcb: fix resource leak in mcb_probe()
coresight: etm4x: fix repeated words in comments
coresight: cti: Fix null pointer error on CTI init before ETM
coresight: trbe: remove cpuhp instance node before remove cpuhp state
counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update
misc: fastrpc: Add dma_mask to fastrpc_channel_ctx
misc: fastrpc: Add mmap request assigning for static PD pool
misc: fastrpc: Safekeep mmaps on interrupted invoke
misc: fastrpc: Add support for audiopd
misc: fastrpc: Rework fastrpc_req_munmap
misc: fastrpc: Use fastrpc_map_put in fastrpc_map_create on fail
misc: fastrpc: Add fastrpc_remote_heap_alloc
misc: fastrpc: Add reserved mem support
misc: fastrpc: Rename audio protection domain to root
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt driver updates from Greg KH:
"Here is the large set of USB and Thunderbolt driver changes for
6.2-rc1. Overall, thanks to the removal of a driver, more lines were
removed than added, a nice change. Highlights include:
- removal of the sisusbvga driver that was not used by anyone anymore
- minor thunderbolt driver changes and tweaks
- chipidea driver updates
- usual set of typec driver features and hardware support added
- musb minor driver fixes
- fotg210 driver fixes, bringing that hardware back from the "dead"
- minor dwc3 driver updates
- addition, and then removal, of a list.h helper function for many
USB and other subsystem drivers, that ended up breaking the build.
That will come back for 6.3-rc1, it missed this merge window.
- usual xhci updates and enhancements
- usb-serial driver updates and support for new devices
- other minor USB driver updates
All of these have been in linux-next for a while with no reported
problems"
* tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (153 commits)
usb: gadget: uvc: Rename bmInterfaceFlags -> bmInterlaceFlags
usb: dwc2: power on/off phy for peripheral mode in dual-role mode
usb: dwc2: disable lpm feature on Rockchip SoCs
dt-bindings: usb: mtk-xhci: add support for mt7986
usb: dwc3: core: defer probe on ulpi_read_id timeout
usb: ulpi: defer ulpi_register on ulpi_read_id timeout
usb: misc: onboard_usb_hub: add Genesys Logic GL850G hub support
dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller
dt-bindings: vendor-prefixes: add Genesys Logic
usb: fotg210-udc: fix potential memory leak in fotg210_udc_probe()
usb: typec: tipd: Set mode of operation for USB Type-C connector
usb: gadget: udc: drop obsolete dependencies on COMPILE_TEST
usb: musb: remove extra check in musb_gadget_vbus_draw
usb: gadget: uvc: Prevent buffer overflow in setup handler
usb: dwc3: qcom: Fix memory leak in dwc3_qcom_interconnect_init
usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe()
usb: storage: Add check for kcalloc
USB: sisusbvga: use module_usb_driver()
USB: sisusbvga: rename sisusb.c to sisusbvga.c
USB: sisusbvga: remove console support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've added two features: F2FS_IOC_START_ATOMIC_REPLACE
and a per-block age-based extent cache.
F2FS_IOC_START_ATOMIC_REPLACE is a variant of the previous atomic
write feature which guarantees a per-file atomicity. It would be more
efficient than AtomicFile implementation in Android framework.
The per-block age-based extent cache implements another type of extent
cache in memory which keeps the per-block age in a file, so that block
allocator could split the hot and cold data blocks more accurately.
Enhancements:
- introduce F2FS_IOC_START_ATOMIC_REPLACE
- refactor extent_cache to add a new per-block-age-based extent cache support
- introduce discard_urgent_util, gc_mode, max_ordered_discard sysfs knobs
- add proc entry to show discard_plist info
- optimize iteration over sparse directories
- add barrier mount option
Bug fixes:
- avoid victim selection from previous victim section
- fix to enable compress for newly created file if extension matches
- set zstd compress level correctly
- initialize locks early in f2fs_fill_super() to fix bugs reported by syzbot
- correct i_size change for atomic writes
- allow to read node block after shutdown
- allow to set compression for inlined file
- fix gc mode when gc_urgent_high_remaining is 1
- should put a page when checking the summary info
Minor fixes and various clean-ups in GC, discard, debugfs, sysfs, and
doc"
* tag 'f2fs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (63 commits)
f2fs: reset wait_ms to default if any of the victims have been selected
f2fs: fix some format WARNING in debug.c and sysfs.c
f2fs: don't call f2fs_issue_discard_timeout() when discard_cmd_cnt is 0 in f2fs_put_super()
f2fs: fix iostat parameter for discard
f2fs: Fix spelling mistake in label: free_bio_enrty_cache -> free_bio_entry_cache
f2fs: add block_age-based extent cache
f2fs: allocate the extent_cache by default
f2fs: refactor extent_cache to support for read and more
f2fs: remove unnecessary __init_extent_tree
f2fs: move internal functions into extent_cache.c
f2fs: specify extent cache for read explicitly
f2fs: introduce f2fs_is_readonly() for readability
f2fs: remove F2FS_SET_FEATURE() and F2FS_CLEAR_FEATURE() macro
f2fs: do some cleanup for f2fs module init
MAINTAINERS: Add f2fs bug tracker link
f2fs: remove the unused flush argument to change_curseg
f2fs: open code allocate_segment_by_default
f2fs: remove struct segment_allocation default_salloc_ops
f2fs: introduce discard_urgent_util sysfs node
f2fs: define MIN_DISCARD_GRANULARITY macro
...
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|
Running "make htmldocs" shows that "/sys/kernel/oops_count" was
duplicated. This should have been "warn_count":
Warning: /sys/kernel/oops_count is defined 2 times:
./Documentation/ABI/testing/sysfs-kernel-warn_count:0
./Documentation/ABI/testing/sysfs-kernel-oops_count:0
Fix the typo.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-doc/202212110529.A3Qav8aR-lkp@intel.com
Fixes: 8b05aa263361 ("panic: Expose "warn_count" to sysfs")
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening updates from Kees Cook:
- Convert flexible array members, fix -Wstringop-overflow warnings, and
fix KCFI function type mismatches that went ignored by maintainers
(Gustavo A. R. Silva, Nathan Chancellor, Kees Cook)
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add
more __alloc_size attributes, and introduce full testing of all
allocator functions. Finally remove the ksize() side-effect so that
each allocation-aware checker can finally behave without exceptions
- Introduce oops_limit (default 10,000) and warn_limit (default off) to
provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook)
- Introduce overflows_type() and castable_to_type() helpers for cleaner
overflow checking
- Improve code generation for strscpy() and update str*() kern-doc
- Convert strscpy and sigphash tests to KUnit, and expand memcpy tests
- Always use a non-NULL argument for prepare_kernel_cred()
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell)
- Adjust orphan linker section checking to respect CONFIG_WERROR (Xin
Li)
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu)
- Fix um vs FORTIFY warnings for always-NULL arguments
* tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits)
ksmbd: replace one-element arrays with flexible-array members
hpet: Replace one-element array with flexible-array member
um: virt-pci: Avoid GCC non-NULL warning
signal: Initialize the info in ksignal
lib: fortify_kunit: build without structleak plugin
panic: Expose "warn_count" to sysfs
panic: Introduce warn_limit
panic: Consolidate open-coded panic_on_warn checks
exit: Allow oops_limit to be disabled
exit: Expose "oops_count" to sysfs
exit: Put an upper limit on how often we can oops
panic: Separate sysctl logic from CONFIG_SMP
mm/pgtable: Fix multiple -Wstringop-overflow warnings
mm: Make ksize() a reporting-only function
kunit/fortify: Validate __alloc_size attribute results
drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
driver core: Add __alloc_size hint to devm allocators
overflow: Introduce overflows_type() and castable_to_type()
coredump: Proactively round up to kmalloc bucket size
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- More userfaultfs work from Peter Xu
- Several convert-to-folios series from Sidhartha Kumar and Huang Ying
- Some filemap cleanups from Vishal Moola
- David Hildenbrand added the ability to selftest anon memory COW
handling
- Some cpuset simplifications from Liu Shixin
- Addition of vmalloc tracing support by Uladzislau Rezki
- Some pagecache folioifications and simplifications from Matthew
Wilcox
- A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use
it
- Miguel Ojeda contributed some cleanups for our use of the
__no_sanitize_thread__ gcc keyword.
This series should have been in the non-MM tree, my bad
- Naoya Horiguchi improved the interaction between memory poisoning and
memory section removal for huge pages
- DAMON cleanups and tuneups from SeongJae Park
- Tony Luck fixed the handling of COW faults against poisoned pages
- Peter Xu utilized the PTE marker code for handling swapin errors
- Hugh Dickins reworked compound page mapcount handling, simplifying it
and making it more efficient
- Removal of the autonuma savedwrite infrastructure from Nadav Amit and
David Hildenbrand
- zram support for multiple compression streams from Sergey Senozhatsky
- David Hildenbrand reworked the GUP code's R/O long-term pinning so
that drivers no longer need to use the FOLL_FORCE workaround which
didn't work very well anyway
- Mel Gorman altered the page allocator so that local IRQs can remnain
enabled during per-cpu page allocations
- Vishal Moola removed the try_to_release_page() wrapper
- Stefan Roesch added some per-BDI sysfs tunables which are used to
prevent network block devices from dirtying excessive amounts of
pagecache
- David Hildenbrand did some cleanup and repair work on KSM COW
breaking
- Nhat Pham and Johannes Weiner have implemented writeback in zswap's
zsmalloc backend
- Brian Foster has fixed a longstanding corner-case oddity in
file[map]_write_and_wait_range()
- sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang
Chen
- Shiyang Ruan has done some work on fsdax, to make its reflink mode
work better under xfstests. Better, but still not perfect
- Christoph Hellwig has removed the .writepage() method from several
filesystems. They only need .writepages()
- Yosry Ahmed wrote a series which fixes the memcg reclaim target
beancounting
- David Hildenbrand has fixed some of our MM selftests for 32-bit
machines
- Many singleton patches, as usual
* tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (313 commits)
mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio
mm: mmu_gather: allow more than one batch of delayed rmaps
mm: fix typo in struct pglist_data code comment
kmsan: fix memcpy tests
mm: add cond_resched() in swapin_walk_pmd_entry()
mm: do not show fs mm pc for VM_LOCKONFAULT pages
selftests/vm: ksm_functional_tests: fixes for 32bit
selftests/vm: cow: fix compile warning on 32bit
selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE) definitions
mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem
mm,thp,rmap: fix races between updates of subpages_mapcount
mm: memcg: fix swapcached stat accounting
mm: add nodes= arg to memory.reclaim
mm: disable top-tier fallback to reclaim on proactive reclaim
selftests: cgroup: make sure reclaim target memcg is unprotected
selftests: cgroup: refactor proactive reclaim code to reclaim_until()
mm: memcg: fix stale protection of reclaim target memcg
mm/mmap: properly unaccount memory on mas_preallocate() failure
omfs: remove ->writepage
jfs: remove ->writepage
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode and IFS updates from Borislav Petkov:
"The IFS (In-Field Scan) stuff goes through tip because the IFS driver
uses the same structures and similar functionality as the microcode
loader and it made sense to route it all through this branch so that
there are no conflicts.
- Add support for multiple testing sequences to the Intel In-Field
Scan driver in order to be able to run multiple different test
patterns. Rework things and remove the BROKEN dependency so that
the driver can be enabled (Jithu Joseph)
- Remove the subsys interface usage in the microcode loader because
it is not really needed
- A couple of smaller fixes and cleanups"
* tag 'x86_microcode_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/microcode/intel: Do not retry microcode reloading on the APs
x86/microcode/intel: Do not print microcode revision and processor flags
platform/x86/intel/ifs: Add missing kernel-doc entry
Revert "platform/x86/intel/ifs: Mark as BROKEN"
Documentation/ABI: Update IFS ABI doc
platform/x86/intel/ifs: Add current_batch sysfs entry
platform/x86/intel/ifs: Remove reload sysfs entry
platform/x86/intel/ifs: Add metadata validation
platform/x86/intel/ifs: Use generic microcode headers and functions
platform/x86/intel/ifs: Add metadata support
x86/microcode/intel: Use a reserved field for metasize
x86/microcode/intel: Add hdr_type to intel_microcode_sanity_check()
x86/microcode/intel: Reuse microcode_sanity_check()
x86/microcode/intel: Use appropriate type in microcode_sanity_check()
x86/microcode/intel: Reuse find_matching_signature()
platform/x86/intel/ifs: Remove memory allocation from load path
platform/x86/intel/ifs: Remove image loading during init
platform/x86/intel/ifs: Return a more appropriate error code
platform/x86/intel/ifs: Remove unused selection
x86/microcode: Drop struct ucode_cpu_info.valid
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"MTD core changes:
- Fix refcount error in del_mtd_device()
- Fix possible resource leak in init_mtd()
- Set ROOT_DEV for partitions marked as rootfs in DT
- Describe marking rootfs partitions in the bindings
- Fix device name leak when register device fails in add_mtd_device()
- Try to find OF node for every MTD partition
- simplify (a bit) code find partition-matching dynamic OF node
MTD driver changes:
- pxa2xx-flash maps: fix memory leak in probe
- BCM parser: refer to ARCH_BCMBCA instead of ARCH_BCM4908
- lpddr2_nvm: Fix possible null-ptr-deref
- inftlcore: fix repeated words in comments
- lart: remove driver
- tplink:
- Add TP-Link SafeLoader partitions table parser and bindings
- Describe TP-Link SafeLoader parser
- Describe TP-Link SafeLoader dynamic subpartitions
- mtdoops:
- Panic caused mtdoops to call mtdoops_erase function immediately
- Add mtdoops_erase function and move mtdoops_inc_counter after it
- Change printk() to counterpart pr_ functions
MTD binding cleanup:
- Fixed-partitions: Fix 'sercomm,scpart-id' schema
- Standardize the style in the examples
- Drop object types when referencing other files
- Argue in favor of keeping additionalProperties set to true
- NVMEM-cells:
- Inherit from MTD partitions
- Drop range property from example
- Partitions:
- Change qcom,smem-part partition type
- Constrain the list of parsers
- Physmap: Reuse the generic definitions
- SPI-NOR: Drop common properties
- Sunxi-nand: Add an example to validate the bindings
- Onenand: Mention the expected node name
- Ingenic: Mark partitions in the controller node as deprecated
- NAND:
- Standardize the child node name
- Drop common properties already defined in generic files
- nand-chip.yaml should reference mtd.yaml
- Remove useless file about partitions
- Clarify all partition subnodes
SPI NOR core changes:
- Add support for flash reset using the dt reset-gpios property.
- Update hwcaps.mask to include 8D-8D-8D read and page program ops
when xSPI profile 1.0 table is defined.
- Bypass zero erase size in spi_nor_find_best_erase_type().
- Fix select_uniform_erase to skip 0 erase size
- Add generic flash driver. If a flash is not found in the flash_info
array, fall back to the generic flash driver which is described
solely by the flash's SFDP tables.
- Fix the number of bytes for the dummy cycles in
spi_nor_spimem_check_readop().
- Introduce SPI_NOR_QUAD_PP flag, as PP_1_1_4 is not SFDP
discoverable.
SPI NOR manufacturer drivers changes:
- Spansion:
- use PARSE_SFDP for s28hs512t,
- add support for s28hl512t, s28hl01gt, and s28hs01gt.
- Gigadevice: Replace default_init() with post_bfpt() for gd25q256.
- Micron - ST: Enable locking for mt25qu256a.
- Winbond: Add support for W25Q512NW-IQ.
- ISSI: Use PARSE_SFDP and SPI_NOR_QUAD_PP.
Raw NAND core changes:
- Drop obsolete dependencies on COMPILE_TEST
- MAINTAINERS: rectify entry for MESON NAND controller bindings
- Drop EXPORT_SYMBOL_GPL for nanddev_erase()
Raw NAND driver changes:
- marvell: Enable NFC/DEVBUS arbiter
- gpmi: Use pm_runtime_resume_and_get instead of pm_runtime_get_sync
- mpc5121: Replace NO_IRQ by 0
- lpc32xx_{slc,mlc}:
- Switch to using pm_ptr()
- Switch to using gpiod API
- lpc32xx_mlc: Switch to using pm_ptr()
- cadence: Support 64-bit slave dma interface
- rockchip: Describe rk3128-nfc in the bindings
- brcmnand: Update interrupts description in the bindings
SPI-NAND driver changes:
- winbond:
- Add Winbond W25N02KV flash support
- Fix flash identification"
* tag 'mtd/for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (76 commits)
mtd: rawnand: Drop obsolete dependencies on COMPILE_TEST
mtd: maps: pxa2xx-flash: fix memory leak in probe
mtd: core: Fix refcount error in del_mtd_device()
mtd: spi-nor: add SFDP fixups for Quad Page Program
mtd: spi-nor: issi: is25wp256: Init flash based on SFDP
mtd: spi-nor: winbond: add support for W25Q512NW-IQ
mtd: spi-nor: micron-st: Enable locking for mt25qu256a
mtd: spi-nor: Fix the number of bytes for the dummy cycles
mtd: spi-nor: gigadevice: gd25q256: replace gd25q256_default_init with gd25q256_post_bfpt
mtd: spi-nor: Fix formatting in spi_nor_read_raw() kerneldoc comment
mtd: spi-nor: sysfs: print JEDEC ID for generic flash driver
mtd: spi-nor: add generic flash driver
mtd: spi-nor: fix select_uniform_erase to skip 0 erase size
mtd: spi-nor: move function declaration out of sfdp.h
mtd: spi-nor: remember full JEDEC flash ID
mtd: spi-nor: sysfs: hide manufacturer if it is not set
mtd: spi-nor: hide jedec_id sysfs attribute if not present
mtd: spi-nor: Check for zero erase size in spi_nor_find_best_erase_type()
mtd: rawnand: marvell: Enable NFC/DEVBUS arbiter
mtd: parsers: refer to ARCH_BCMBCA instead of ARCH_BCM4908
...
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Pull drm updates from Dave Airlie:
"The biggest highlight is that the accel subsystem framework is merged.
Hopefully for 6.3 we will be able to line up a driver to use it.
In drivers land, i915 enables DG2 support by default now, and nouveau
has a big stability refactoring and initial ampere support, AMD
includes new hw IP support and should build on ARM again. There is
also an ofdrm driver to take over offb on platforms it's used.
Stuff outside my tree, the dma-buf patches hit a few places, the vc4
firmware changes also do, and i915 has some interactions with MEI for
discrete GPUs. I think all of those should have been acked/reviewed by
relevant parties.
New driver:
- ofdrm - replacement for offb
fbdev:
- add support for nomodeset
fourcc:
- add Vivante tiled modifier
core:
- atomic-helpers: CRTC primary plane test fixes, fb access hooks
- connector: TV API consistency, cmdline parser improvements
- send connector hotplug on cleanup
- sort makefile objects
tests:
- sort kunit tests
- improve DP-MST tests
- add kunit helpers to create a device
sched:
- module param for scheduling policy
- refcounting fix
buddy:
- add back random seed log
ttm:
- convert ttm_resource to size_t
- optimize pool allocations
edid:
- HFVSDB parsing support fixes
- logging/debug improvements
- DSC quirks
dma-buf:
- Add unlocked vmap and attachment mapping
- move drivers to common locking convention
- locking improvements
firmware:
- new API for rPI firmware and vc4
xilinx:
- zynqmp: displayport bridge support
- dpsub fix
bridge:
- adv7533: Remove dynamic lane switching
- it6505: Runtime PM support, sync improvements
- ps8640: Handle AUX defer messages
- tc358775: Drop soft-reset over I2C
panel:
- panel-edp: Add INX N116BGE-EA2 C2 and C4 support.
- Jadard JD9365DA-H3
- NewVision NV3051D
amdgpu:
- DCN support on ARM
- DCN 2.1 secure display
- Sienna Cichlid mode2 reset fixes
- new GC 11.x firmware versions
- drop AMD specific DSC workarounds in favour of drm code
- clang warning fixes
- scheduler rework
- SR-IOV fixes
- GPUVM locking fixes
- fix memory leak in CS IOCTL error path
- flexible array updates
- enable new GC/PSP/SMU/NBIO IP
- GFX preemption support for gfx9
amdkfd:
- cache size fixes
- userptr fixes
- enable cooperative launch on gfx 10.3
- enable GC 11.0.4 KFD support
radeon:
- replace kmap with kmap_local_page
- ACPI ref count fix
- HDA audio notifier support
i915:
- DG2 enabled by default
- MTL enablement work
- hotplug refactoring
- VBT improvements
- Display and watermark refactoring
- ADL-P workaround
- temp disable runtime_pm for discrete-
- fix for A380 as a secondary GPU
- Wa_18017747507 for DG2
- CS timestamp support fixes for gen5 and earlier
- never purge busy TTM objects
- use i915_sg_dma_sizes for all backends
- demote GuC kernel contexts to normal priority
- gvt: refactor for new MDEV interface
- enable DC power states on eDP ports
- fix gen 2/3 workarounds
nouveau:
- fix page fault handling
- Ampere acceleration support
- driver stability improvements
- nva3 backlight support
msm:
- MSM_INFO_GET_FLAGS support
- DPU: XR30 and P010 image formats
- Qualcomm SM6115 support
- DSI PHY support for QCM2290
- HDMI: refactored dev init path
- remove exclusive-fence hack
- fix speed-bin detection
- enable clamp to idle on 7c3
- improved hangcheck detection
vmwgfx:
- fb and cursor refactoring
- convert to generic hashtable
- cursor improvements
etnaviv:
- hw workarounds
- softpin MMU fixes
ast:
- atomic gamma LUT support
- convert to SHMEM
lcdif:
- support YUV planes
- Increase DMA burst size
- FIFO threshold tuning
meson:
- fix return type of cvbs mode_valid
mgag200:
- fix PLL setup on some revisions
sun4i:
- A100 and D1 support
udl:
- modesetting improvements
- hot unplug support
vc4:
- support PAL-M
- fix regression preventing 4K @ 60Hz
- fix NULL ptr deref
v3d:
- switch to drm managed resources
renesas:
- RZ/G2L DSI support
- DU Kconfig cleanup
mediatek:
- fixup dpi and hdmi
- MT8188 dpi support
- MT8195 AFBC support
tegra:
- NVDEC hardware on Tegra234 SoC
hdlcd:
- switch to drm managed resources
ingenic:
- fix registration error path
hisilicon:
- convert to drm_mode_init
maildp:
- use managed resources
mtk:
- use drm_mode_init
rockchip:
- use drm_mode_copy"
* tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm: (1397 commits)
drm/amdgpu: fix mmhub register base coding error
drm/amdgpu: add tmz support for GC IP v11.0.4
drm/amdgpu: enable GFX Clock Gating control for GC IP v11.0.4
drm/amdgpu: enable GFX Power Gating for GC IP v11.0.4
drm/amdgpu: enable GFX IP v11.0.4 CG support
drm/amdgpu: Make amdgpu_ring_mux functions as static
drm/amdgpu: generally allow over-commit during BO allocation
drm/amd/display: fix array index out of bound error in DCN32 DML
drm/amd/display: 3.2.215
drm/amd/display: set optimized required for comp buf changes
drm/amd/display: Add debug option to skip PSR CRTC disable
drm/amd/display: correct DML calc error of UrgentLatency
drm/amd/display: correct static_screen_event_mask
drm/amd/display: Ensure commit_streams returns the DC return code
drm/amd/display: read invalid ddc pin status cause engine busy
drm/amd/display: Bypass DET swath fill check for max clocks
drm/amd/display: Disable uclk pstate for subvp pipes
drm/amd/display: Fix DCN2.1 default DSC clocks
drm/amd/display: Enable dp_hdmi21_pcon support
drm/amd/display: prevent seamless boot on displays that don't have the preferred dig
...
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Pull block updates from Jens Axboe:
- NVMe pull requests via Christoph:
- Support some passthrough commands without CAP_SYS_ADMIN (Kanchan
Joshi)
- Refactor PCIe probing and reset (Christoph Hellwig)
- Various fabrics authentication fixes and improvements (Sagi
Grimberg)
- Avoid fallback to sequential scan due to transient issues (Uday
Shankar)
- Implement support for the DEAC bit in Write Zeroes (Christoph
Hellwig)
- Allow overriding the IEEE OUI and firmware revision in configfs
for nvmet (Aleksandr Miloserdov)
- Force reconnect when number of queue changes in nvmet (Daniel
Wagner)
- Minor fixes and improvements (Uros Bizjak, Joel Granados, Sagi
Grimberg, Christoph Hellwig, Christophe JAILLET)
- Fix and cleanup nvme-fc req allocation (Chaitanya Kulkarni)
- Use the common tagset helpers in nvme-pci driver (Christoph
Hellwig)
- Cleanup the nvme-pci removal path (Christoph Hellwig)
- Use kstrtobool() instead of strtobool (Christophe JAILLET)
- Allow unprivileged passthrough of Identify Controller (Joel
Granados)
- Support io stats on the mpath device (Sagi Grimberg)
- Minor nvmet cleanup (Sagi Grimberg)
- MD pull requests via Song:
- Code cleanups (Christoph)
- Various fixes
- Floppy pull request from Denis:
- Fix a memory leak in the init error path (Yuan)
- Series fixing some batch wakeup issues with sbitmap (Gabriel)
- Removal of the pktcdvd driver that was deprecated more than 5 years
ago, and subsequent removal of the devnode callback in struct
block_device_operations as no users are now left (Greg)
- Fix for partition read on an exclusively opened bdev (Jan)
- Series of elevator API cleanups (Jinlong, Christoph)
- Series of fixes and cleanups for blk-iocost (Kemeng)
- Series of fixes and cleanups for blk-throttle (Kemeng)
- Series adding concurrent support for sync queues in BFQ (Yu)
- Series bringing drbd a bit closer to the out-of-tree maintained
version (Christian, Joel, Lars, Philipp)
- Misc drbd fixes (Wang)
- blk-wbt fixes and tweaks for enable/disable (Yu)
- Fixes for mq-deadline for zoned devices (Damien)
- Add support for read-only and offline zones for null_blk
(Shin'ichiro)
- Series fixing the delayed holder tracking, as used by DM (Yu,
Christoph)
- Series enabling bio alloc caching for IRQ based IO (Pavel)
- Series enabling userspace peer-to-peer DMA (Logan)
- BFQ waker fixes (Khazhismel)
- Series fixing elevator refcount issues (Christoph, Jinlong)
- Series cleaning up references around queue destruction (Christoph)
- Series doing quiesce by tagset, enabling cleanups in drivers
(Christoph, Chao)
- Series untangling the queue kobject and queue references (Christoph)
- Misc fixes and cleanups (Bart, David, Dawei, Jinlong, Kemeng, Ye,
Yang, Waiman, Shin'ichiro, Randy, Pankaj, Christoph)
* tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux: (247 commits)
blktrace: Fix output non-blktrace event when blk_classic option enabled
block: sed-opal: Don't include <linux/kernel.h>
sed-opal: allow using IOC_OPAL_SAVE for locking too
blk-cgroup: Fix typo in comment
block: remove bio_set_op_attrs
nvmet: don't open-code NVME_NS_ATTR_RO enumeration
nvme-pci: use the tagset alloc/free helpers
nvme: add the Apple shared tag workaround to nvme_alloc_io_tag_set
nvme: only set reserved_tags in nvme_alloc_io_tag_set for fabrics controllers
nvme: consolidate setting the tagset flags
nvme: pass nr_maps explicitly to nvme_alloc_io_tag_set
block: bio_copy_data_iter
nvme-pci: split out a nvme_pci_ctrl_is_dead helper
nvme-pci: return early on ctrl state mismatch in nvme_reset_work
nvme-pci: rename nvme_disable_io_queues
nvme-pci: cleanup nvme_suspend_queue
nvme-pci: remove nvme_pci_disable
nvme-pci: remove nvme_disable_admin_queue
nvme: merge nvme_shutdown_ctrl into nvme_disable_ctrl
nvme: use nvme_wait_ready in nvme_shutdown_ctrl
...
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