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Add a section to describe how to use the bootconfig for
specifying kernel and init parameters. This is an important
section because it is the reason why this document is under
the admin-guide.
Link: https://lkml.kernel.org/r/163077086399.222577.5881779375643977991.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL (Compute Express Link) updates from Dan Williams:
- Fix detection of CXL host bridges to filter out disabled ACPI0016
devices in the ACPI DSDT.
- Fix kernel lockdown integration to disable raw commands when raw PCI
access is disabled.
- Fix a broken debug message.
- Add support for "Get Partition Info". I.e. enumerate the split
between volatile and persistent capacity on bi-modal CXL memory
expanders.
- Re-factor the core by subject area. This is a work in progress.
- Prepare libnvdimm to understand CXL labels in addition to EFI labels.
This is a work in progress.
* tag 'cxl-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (25 commits)
cxl/registers: Fix Documentation warning
cxl/pmem: Fix Documentation warning
cxl/uapi: Fix defined but not used warnings
cxl/pci: Fix debug message in cxl_probe_regs()
cxl/pci: Fix lockdown level
cxl/acpi: Do not add DSDT disabled ACPI0016 host bridge ports
libnvdimm/labels: Add claim class helpers
libnvdimm/labels: Add type-guid helpers
libnvdimm/labels: Add blk special cases for nlabel and position helpers
libnvdimm/labels: Add blk isetcookie set / validation helpers
libnvdimm/labels: Add a checksum calculation helper
libnvdimm/labels: Introduce label setter helpers
libnvdimm/labels: Add isetcookie validation helper
libnvdimm/labels: Introduce getters for namespace label fields
cxl/mem: Adjust ram/pmem range to represent DPA ranges
cxl/mem: Account for partitionable space in ram/pmem ranges
cxl/pci: Store memory capacity values
cxl/pci: Simplify register setup
cxl/pci: Ignore unknown register block types
cxl/core: Move memdev management to core
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Commit 0f06157e0135 ("cxl/core: Move register mapping infrastructure")
neglected to add a DOC header for the new drivers/core/regs.c file.
Reported-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/163072206675.2250120.3527179192933919995.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Commit 06737cd0d216 ("cxl/core: Move pmem functionality") neglected to
add a DOC header for the new drivers/cxl/core/pmem.c file.
Reported-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huwei.com>
Link: https://lore.kernel.org/r/163072206163.2250120.11486436976516079516.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The register mapping infrastructure is large enough to move to its own
compilation unit. This also cleans up an unnecessary include of <mem.h>
core/bus.c.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/162800068975.665205.12895551621746585289.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Refactor the pmem / nvdimm-bridge functionality from core/bus.c to
core/pmem.c. Introduce drivers/core/core.h to communicate data
structures and helpers between the core bus and other functionality that
registers devices on the bus.
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/162792538899.368511.3881663908293411300.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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CXL core is growing, and it's already arguably unmanageable. To support
future growth, move core functionality to a new directory and rename the
file to represent just bus support. Future work will remove non-bus
functionality.
Note that mem.h is renamed to cxlmem.h to avoid a namespace collision
with the global ARCH=um mem.h header.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/162792537866.368511.8915631504621088321.stgit@dwillia2-desk3.amr.corp.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/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New drivers/devices
- Support for Renesas RZ/G2L dma controller
- New driver for AMD PTDMA controller
Updates:
- Big pile of idxd updates
- Updates for Altera driver, stm32-dma, dw etc"
* tag 'dmaengine-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (83 commits)
dmaengine: sh: fix some NULL dereferences
dmaengine: sh: Fix unused initialization of pointer lmdesc
MAINTAINERS: Fix AMD PTDMA DRIVER entry
dmaengine: ptdma: remove PT_OFFSET to avoid redefnition
dmaengine: ptdma: Add debugfs entries for PTDMA
dmaengine: ptdma: register PTDMA controller as a DMA resource
dmaengine: ptdma: Initial driver for the AMD PTDMA
dmaengine: fsl-dpaa2-qdma: Fix spelling mistake "faile" -> "failed"
dmaengine: idxd: remove interrupt disable for dev_lock
dmaengine: idxd: remove interrupt disable for cmd_lock
dmaengine: idxd: fix setting up priv mode for dwq
dmaengine: xilinx_dma: Set DMA mask for coherent APIs
dmaengine: ti: k3-psil-j721e: Add entry for CSI2RX
dmaengine: sh: Add DMAC driver for RZ/G2L SoC
dmaengine: Extend the dma_slave_width for 128 bytes
dt-bindings: dma: Document RZ/G2L bindings
dmaengine: ioat: depends on !UML
dmaengine: idxd: set descriptor allocation size to threshold for swq
dmaengine: idxd: make submit failure path consistent on desc freeing
dmaengine: idxd: remove interrupt flag for completion list spinlock
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Document RZ/G2L DMAC bindings.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210806095322.2326-2-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Linux 5.14-rc5
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Enabling device and wq returns standard errno and that does not provide
enough details to indicate what exactly failed. The hardware command status
is only 8bits. Expand the command status to 32bits and use the upper 16
bits to define software errors to provide more details on the exact
failure. Bit 31 will be used to indicate the error is software set as the
driver is using some of the spec defined hardware error as well.
Cc: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162681373579.1968485.5891788397526827892.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Set GRPCFG traffic class to value of 1 for best performance on current
generation of accelerators. Also add override option to allow experimentation.
Sysfs knobs are disabled for DSA/IAX gen1 devices.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162681373005.1968485.3761065664382799202.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Default REQ/ACK protocol consists in maintaining ACK signal up to the
removal of REQuest and the transfer completion.
In case of alternative REQ/ACK protocol, ACK de-assertion does not wait the
removal of the REQuest, but only the transfer completion.
Due to a possible DMA stream lock when transferring data to/from STM32
USART/UART, this new bindings allow to select this alternative protocol in
device tree, especially for STM32 USART/UART nodes.
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210624093959.142265-2-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Response port is not required in some configuration of the IP core.
Signed-off-by: Olivier Dautricourt <olivier.dautricourt@orolia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Link: https://lore.kernel.org/r/fb28146a23a182be9e5435c1d3e5cac36b372294.1623898678.git.olivier.dautricourt@orolia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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This helps to remove conflict on idxd driver
Conflicts:
drivers/dma/idxd/sysfs.c
drivers/dma/idxd/bus.c
Greg says:
Bus: Make remove callback return void tag
Tag for other trees/branches to pull from in order to have a stable
place to build off of if they want to add new busses for 5.15.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add occupancy information to wq sysfs attribute. Attribute will show
wq occupancy data if "WQ Occupancy Support" field in WQCAP is 1. It
displays the number of entries currently in this WQ. This is provided
as an estimate and should not be relied on to determine whether there
is space in the WQ. The data is to provide information to user apps
for flow control.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162275745546.1857062.8765615879420582018.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly ARM cpufreq driver updates, including one new
MediaTek driver that has just passed all of the reviews, with the
addition of a revert of a recent intel_pstate commit, some core
cpufreq changes and a DT-related update of the operating performance
points (OPP) support code.
Specifics:
- Add new cpufreq driver for the MediaTek MT6779 platform called
mediatek-hw along with corresponding DT bindings (Hector.Yuan).
- Add DCVS interrupt support to the qcom-cpufreq-hw driver (Thara
Gopinath).
- Make the qcom-cpufreq-hw driver set the dvfs_possible_from_any_cpu
policy flag (Taniya Das).
- Blocklist more Qualcomm platforms in cpufreq-dt-platdev (Bjorn
Andersson).
- Make the vexpress cpufreq driver set the CPUFREQ_IS_COOLING_DEV
flag (Viresh Kumar).
- Add new cpufreq driver callback to allow drivers to register with
the Energy Model in a consistent way and make several drivers use
it (Viresh Kumar).
- Change the remaining users of the .ready() cpufreq driver callback
to move the code from it elsewhere and drop it from the cpufreq
core (Viresh Kumar).
- Revert recent intel_pstate change adding HWP guaranteed performance
change notification support to it that led to problems, because the
notification in question is triggered prematurely on some systems
(Rafael Wysocki).
- Convert the OPP DT bindings to DT schema and clean them up while at
it (Rob Herring)"
* tag 'pm-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
Revert "cpufreq: intel_pstate: Process HWP Guaranteed change notification"
cpufreq: mediatek-hw: Add support for CPUFREQ HW
cpufreq: Add of_perf_domain_get_sharing_cpumask
dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW
cpufreq: Remove ready() callback
cpufreq: sh: Remove sh_cpufreq_cpu_ready()
cpufreq: acpi: Remove acpi_cpufreq_cpu_ready()
cpufreq: qcom-hw: Set dvfs_possible_from_any_cpu cpufreq driver flag
cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev
cpufreq: qcom-cpufreq-hw: Add dcvs interrupt support
cpufreq: scmi: Use .register_em() to register with energy model
cpufreq: vexpress: Use .register_em() to register with energy model
cpufreq: scpi: Use .register_em() to register with energy model
dt-bindings: opp: Convert to DT schema
dt-bindings: Clean-up OPP binding node names in examples
ARM: dts: omap: Drop references to opp.txt
cpufreq: qcom-cpufreq-hw: Use .register_em() to register with energy model
cpufreq: omap: Use .register_em() to register with energy model
cpufreq: mediatek: Use .register_em() to register with energy model
cpufreq: imx6q: Use .register_em() to register with energy model
...
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* pm-opp:
dt-bindings: opp: Convert to DT schema
dt-bindings: Clean-up OPP binding node names in examples
ARM: dts: omap: Drop references to opp.txt
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull operating performance points (OPP) framework changes for v5.15
from Viresh Kumar:
"This moves the OPP bindings to DT schema (Rob Herring)."
* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
dt-bindings: opp: Convert to DT schema
dt-bindings: Clean-up OPP binding node names in examples
ARM: dts: omap: Drop references to opp.txt
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Convert the OPP v1 and v2 bindings to DT schema format. As the OPPv2 binding
can be extended by vendors, we need to split the common part out from the
"operating-points-v2" conforming compatible.
Cc: Yangtao Li <tiny.windzz@gmail.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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In preparation to convert OPP bindings to DT schema, clean-up a few OPP
binding node names in the binding examples.
Cc: Georgi Djakov <djakov@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Georgi Djakov <djakov@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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* pm-cpufreq:
Revert "cpufreq: intel_pstate: Process HWP Guaranteed change notification"
cpufreq: mediatek-hw: Add support for CPUFREQ HW
cpufreq: Add of_perf_domain_get_sharing_cpumask
dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW
cpufreq: Remove ready() callback
cpufreq: sh: Remove sh_cpufreq_cpu_ready()
cpufreq: acpi: Remove acpi_cpufreq_cpu_ready()
cpufreq: qcom-hw: Set dvfs_possible_from_any_cpu cpufreq driver flag
cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev
cpufreq: qcom-cpufreq-hw: Add dcvs interrupt support
cpufreq: scmi: Use .register_em() to register with energy model
cpufreq: vexpress: Use .register_em() to register with energy model
cpufreq: scpi: Use .register_em() to register with energy model
cpufreq: qcom-cpufreq-hw: Use .register_em() to register with energy model
cpufreq: omap: Use .register_em() to register with energy model
cpufreq: mediatek: Use .register_em() to register with energy model
cpufreq: imx6q: Use .register_em() to register with energy model
cpufreq: dt: Use .register_em() to register with energy model
cpufreq: Add callback to register with energy model
cpufreq: vexpress: Set CPUFREQ_IS_COOLING_DEV flag
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull more ARM cpufreq changes for v5.15-rc1 from Viresh Kumar:
"This adds a new cpufreq driver for Mediatek, which had been going
through reviews since last one year."
* 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
cpufreq: mediatek-hw: Add support for CPUFREQ HW
cpufreq: Add of_perf_domain_get_sharing_cpumask
dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW
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Add devicetree bindings for MediaTek HW driver.
Signed-off-by: Hector.Yuan <hector.yuan@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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This isn't used anymore, get rid of it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These add ACPI support to the PCI VMD driver, improve suspend-to-idle
support for AMD platforms and update documentation.
Specifics:
- Add ACPI support to the PCI VMD driver (Rafael Wysocki)
- Rearrange suspend-to-idle support code to reflect the platform
firmware expectations on some AMD platforms (Mario Limonciello)
- Make SSDT overlays documentation follow the code documented by it
more closely (Andy Shevchenko)"
* tag 'acpi-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: s2idle: Run both AMD and Microsoft methods if both are supported
Documentation: ACPI: Align the SSDT overlays file with the code
PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus
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This updates the following:
1) The ASL code to follow latest ACPI requirements, i.e.
- static buffer to be defined outside of the method
- The _ADR and _HID shouldn't be together for the same device
2) EFI section relies on the additional kernel configuration option,
i.e. CONFIG_EFI_CUSTOM_SSDT_OVERLAYS
3) Refer to ACPI machine language as AML (capitalized)
4) Miscellaneous amendments
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pull more documentation updates from Jonathan Corbet:
"Another collection of documentation patches, mostly fixes but also
includes another set of traditional Chinese translations"
* tag 'docs-5.15-2' of git://git.lwn.net/linux:
docs: pdfdocs: Fix typo in CJK-language specific font settings
docs: kernel-hacking: Remove inappropriate text
docs/zh_TW: add translations for zh_TW/filesystems
docs/zh_TW: add translations for zh_TW/cpu-freq
docs/zh_TW: add translations for zh_TW/arm64
docs/zh_CN: Modify the translator tag and fix the wrong word
Documentation/features/vm: correct huge-vmap APIs
Documentation: block: blk-mq: Fix small typo in multi-queue docs
Documentation: in_irq() cleanup
Documentation: arm: marvell: Add 88F6825 model into list
Documentation/process/maintainer-pgp-guide: Replace broken link to PGP path finder
Documentation: locking: fix references
Documentation: Update details of The Linux Kernel Module Programming Guide
docs: x86: Remove obsolete information about x86_64 vmalloc() faulting
Documentation/process/applying-patches: Activate linux-next man hyperlink
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There were typos in the fallback definitions of dummy LaTeX macros
for systems without CJK fonts.
They cause build errors in "make pdfdocs" on such systems.
Fix them.
Fixes: e291ff6f5a03 ("docs: pdfdocs: Add CJK-language-specific font settings")
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/ad7615a5-f8fa-2bc3-de6b-7ed49d458964@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Remove inappropriate sexual (and ableist) text from the locking
documentation, aligning it with the kernel code-of-conduct. As the text
was unrelated to locking, this change streamlines the document and
improves readability.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://lore.kernel.org/r/20210903151826.6300-1-alyssa@rosenzweig.io
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Create new translations for zh_TW/filesystems and link them to index.
Signed-off-by: Hu Haowen <src.res@email.cn>
Link: https://lore.kernel.org/r/20210821094059.64300-3-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Create new translations for zh_TW/cpu-freq and link them to index.
Signed-off-by: Hu Haowen <src.res@email.cn>
Link: https://lore.kernel.org/r/20210821094059.64300-2-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Create new translations for zh_TW/arm64 and link them to index.
Signed-off-by: Hu Haowen <src.res@email.cn>
Link: https://lore.kernel.org/r/20210821094059.64300-1-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Fix a wrong word;
Fix old Original tag;
Remove unnecessary blank lines;
Modify the translator tag to be consistent with the current.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210821081800.2205103-1-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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In commit:
bbc180a5adb05ee8 ("mm: HUGE_VMAP arch support cleanup")
We replaced:
* ioremap_pud_enabled() with arch_vmap_pud_supported()
* ioremap_pmd_enabled() with arch_vmap_pmd_supported()
Update the documentation accordingly.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20210817091621.16799-1-mark.rutland@arm.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Fixed a small typo in the documentation for multi-queue block IO.
Signed-off-by: Jinay Jain <jinaybjain@gmail.com>
Link: https://lore.kernel.org/r/20210812152528.300668-1-jinaybjain@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Replace the obsolete and ambiguos macro in_irq() with new
macro in_hardirq().
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Link: https://lore.kernel.org/r/20210814014831.53083-1-changbin.du@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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88F6825 is just 88F6820 but without encryption acceleration hardware and is
used e.g. in DTS file arch/arm/boot/dts/armada-385-clearfog-gtr.dtsi
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210814124805.14568-1-pali@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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finder
PGP pathfinder[1], which is suggested for finding a trust path to
unknown PGP keys by 'maintainer-pgp-guide.rst', is not working now.
This commit replaces it with other available tools.
[1] https://pgp.cs.uu.nl/
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210812095030.4704-2-sj38.park@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This patch fixes file references from txt to rst file ending in
ww-mutex-design.rst and futex-requeue-pi.rst. While on it fix a spelling
issue "desgin" to "design" reported by Matthew Wilcox.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210823183143.1691344-1-aahringo@redhat.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Recently, the content and examples of the book "The Linux Kernel Module
Programming Guide" are being actively maintained and added on Github[1].
Currently, the book is being regularly built into webpage and pdf
file using Github static page[2].
[1]: https://github.com/sysprog21/lkmpg
[2]: https://sysprog21.github.io/lkmpg/
Signed-off-by: Chun-Hung Tseng <henrybear327@gmail.com>
Link: https://lore.kernel.org/r/20210820222152.971174-1-henrybear327@gmail.com
[jc: fixed docs-build warnings]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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x86_64 vmalloc() mappings are no longer "synchronized" among page tables
via faulting since commit 6eb82f994026 ("x86/mm: Pre-allocate P4D/PUD
pages for vmalloc area"), since the corresponding P4D or PUD pages are
now preallocated at boot, by preallocate_vmalloc_pages(). Drop the
"lazily synchronized" description for less confusion.
While this file is x86_64-specific, it is worth noting that things are
different for x86_32, where vmalloc()-related changes to `init_mm.pgd` are
synchronized to all page tables in the system during runtime, via
arch_sync_kernel_mappings(). Unfortunately, this synchronization is
subject to race condition, which is further handled via faulting, see
vmalloc_fault(). See commit 4819e15f740e ("x86/mm/32: Bring back vmalloc
faulting on x86_32") for more details.
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20210818220123.2623-1-yepeilin.cs@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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There is a url for linux-next in the 'applying-patches.rst', but it's
surrounded by backquotes. So the url doesn't have a hyperlink in the
built document. To let readers easily move to the page, this commit
puts the url outside of the backquotes so that a hyperlink to the url
can be automatically made.
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Link: https://lore.kernel.org/r/20210812095030.4704-1-sj38.park@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge more updates from Andrew Morton:
"147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f.
Subsystems affected by this patch series: mm (memory-hotplug, rmap,
ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan),
alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib,
checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig,
selftests, ipc, and scripts"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits)
scripts: check_extable: fix typo in user error message
mm/workingset: correct kernel-doc notations
ipc: replace costly bailout check in sysvipc_find_ipc()
selftests/memfd: remove unused variable
Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH
configs: remove the obsolete CONFIG_INPUT_POLLDEV
prctl: allow to setup brk for et_dyn executables
pid: cleanup the stale comment mentioning pidmap_init().
kernel/fork.c: unexport get_{mm,task}_exe_file
coredump: fix memleak in dump_vma_snapshot()
fs/coredump.c: log if a core dump is aborted due to changed file permissions
nilfs2: use refcount_dec_and_lock() to fix potential UAF
nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group
nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group
nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group
nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group
nilfs2: fix NULL pointer in nilfs_##name##_attr_release
nilfs2: fix memory leak in nilfs_sysfs_create_device_group
trap: cleanup trap_init()
init: move usermodehelper_enable() to populate_rootfs()
...
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This should have been done with commit 91ed3ed0f798 ("MAINTAINERS: update
ClangBuiltLinux IRC chat") but I did not realize it was in two separate
spots.
Link: https://lkml.kernel.org/r/20210825211823.6406-3-nathan@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We are now at llvm@lists.linux.dev.
Link: https://lkml.kernel.org/r/20210825211823.6406-2-nathan@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This commit adds documents for DAMON under
`Documentation/admin-guide/mm/damon/` and `Documentation/vm/damon/`.
Link: https://lkml.kernel.org/r/20210716081449.22187-11-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Reviewed-by: Markus Boehme <markubo@amazon.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Record cpu and timestamp on allocations and frees, and show them in
reports. Upon an error, this can help correlate earlier messages in the
kernel log via allocation and free timestamps.
Link: https://lkml.kernel.org/r/20210714175312.2947941-1-elver@google.com
Suggested-by: Joern Engel <joern@purestorage.com>
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Alexander Potapenko <glider@google.com>
Acked-by: Joern Engel <joern@purestorage.com>
Cc: Yuanyuan Zhong <yzhong@purestorage.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The memory hot(un)plug documentation is outdated and incomplete. Most of
the content dates back to 2007, so it's time for a major overhaul.
Let's rewrite, reorganize and update most parts of the documentation. In
addition to memory hot(un)plug, also add some details regarding
ZONE_MOVABLE, with memory hotunplug being one of its main consumers.
Drop the file history, that information can more reliably be had from the
git log.
The style of the document is also properly fixed that e.g., "restview"
renders it cleanly now.
In the future, we might add some more details about virt users like
virtio-mem, the XEN balloon, the Hyper-V balloon and ppc64 dlpar.
Link: https://lkml.kernel.org/r/20210707073205.3835-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch series "memory-hotplug.rst: complete admin-guide overhaul", v3.
This patch (of 2):
We have the same content at Documentation/core-api/memory-hotplug.rst and
it doesn't fit into the admin-guide. The documentation was accidentially
duplicated when merging.
Link: https://lkml.kernel.org/r/20210707073205.3835-1-david@redhat.com
Link: https://lkml.kernel.org/r/20210707073205.3835-2-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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