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2025-03-17Docs/ABI/damon: document DAMOS sysfs files to set the min/max folio_sizeUsama Arif1-0/+14
This will be used to decide the min and max folio size to operate on for pa_stat. Link: https://lkml.kernel.org/r/20250211124437.278873-4-usamaarif642@gmail.com Signed-off-by: Usama Arif <usamaarif642@gmail.com> Reviewed-by: SeongJae Park <sj@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-17mm: zbud: remove zbudYosry Ahmed1-6/+4
The zbud compressed pages allocator is rarely used, most users use zsmalloc. zbud consumes much more memory (only stores 1 or 2 compressed pages per physical page). The only advantage of zbud is a marginal performance improvement that by no means justify the memory overhead. Historically, zsmalloc had significantly worse latency than zbud and z3fold but offered better memory savings. This is no longer the case as shown by a simple recent analysis [1]. In a kernel build test on tmpfs in a limited cgroup, zbud 2-3% less time than zsmalloc, but at the cost of using ~32% more memory (1.5G vs 1.13G). The tradeoff does not make sense for zbud in any practical scenario. The only alleged advantage of zbud is not having the dependency on CONFIG_MMU, but CONFIG_SWAP already depends on CONFIG_MMU anyway, and zbud is only used by zswap. Remove zbud after z3fold's removal, leaving zsmalloc as the one and only zpool allocator. Leave the removal of the zpool API (and its associated config options) to a followup cleanup after no more allocators show up. Deprecating zbud for a few cycles before removing it was initially proposed [2], like z3fold was marked as deprecated for 2 cycles [3]. However, Johannes rightfully pointed out that the 2 cycles is too short for most downstream consumers, and z3fold was deprecated first only as a courtesy anyway. [1]https://lore.kernel.org/lkml/CAJD7tkbRF6od-2x_L8-A1QL3=2Ww13sCj4S3i4bNndqF+3+_Vg@mail.gmail.com/ [2]https://lore.kernel.org/lkml/Z5gdnSX5Lv-nfjQL@google.com/ [3]https://lore.kernel.org/lkml/20240904233343.933462-1-yosryahmed@google.com/ Link: https://lkml.kernel.org/r/20250129180633.3501650-3-yosry.ahmed@linux.dev Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev> Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Nhat Pham <nphamcs@gmail.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Dan Streetman <ddstreet@ieee.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Seth Jennings <sjenning@redhat.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vitaly Wool <vitaly.wool@konsulko.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: WANG Xuerui <kernel@xen0n.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-17mm: z3fold: remove z3foldYosry Ahmed4-61/+0
Patch series "mm: zswap: remove z3fold and zbud", v2. After 2 cycles of deprecating z3fold, remove it as well as zbud (rationale in specific patches). This patch (of 2): Z3fold has been marked as deprecated for 2 cycles and no one complained, as expected. As there are no known users, remove the code now. Link: https://lkml.kernel.org/r/20250129180633.3501650-1-yosry.ahmed@linux.dev Link: https://lkml.kernel.org/r/20250129180633.3501650-2-yosry.ahmed@linux.dev Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev> Acked-by: Nhat Pham <nphamcs@gmail.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Dan Streetman <ddstreet@ieee.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Seth Jennings <sjenning@redhat.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vitaly Wool <vitaly.wool@konsulko.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: WANG Xuerui <kernel@xen0n.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-17mm/rmap: convert make_device_exclusive_range() to make_device_exclusive()David Hildenbrand2-2/+2
The single "real" user in the tree of make_device_exclusive_range() always requests making only a single address exclusive. The current implementation is hard to fix for properly supporting anonymous THP / large folios and for avoiding messing with rmap walks in weird ways. So let's always process a single address/page and return folio + page to minimize page -> folio lookups. This is a preparation for further changes. Reject any non-anonymous or hugetlb folios early, directly after GUP. While at it, extend the documentation of make_device_exclusive() to clarify some things. Link: https://lkml.kernel.org/r/20250210193801.781278-4-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Reviewed-by: Alistair Popple <apopple@nvidia.com> Tested-by: Alistair Popple <apopple@nvidia.com> Cc: Alex Shi <alexs@kernel.org> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Dave Airlie <airlied@gmail.com> Cc: Jann Horn <jannh@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Karol Herbst <kherbst@redhat.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Lyude <lyude@redhat.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Pasha Tatashin <pasha.tatashin@soleen.com> Cc: Peter Xu <peterx@redhat.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: SeongJae Park <sj@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Yanteng Si <si.yanteng@linux.dev> Cc: Barry Song <v-songbaohua@oppo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-17dt-bindings: clock: qcom,x1e80100-camcc: Fix the list of required-oppsVladimir Zapolskiy1-4/+5
The switch to multiple power domains implies that the required-opps property shall be updated accordingly, a record in one property corresponds to a record in another one. Fixes: 7ec95ff9abf4 ("dt-bindings: clock: move qcom,x1e80100-camcc to its own file") Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Link: https://lore.kernel.org/r/20250304143152.1799966-1-vladimir.zapolskiy@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-03-17ASoC: dt-bindings: fsl,sai: Add i.MX94 supportFrank Li1-0/+4
Add compatible string "fsl,imx94-sai" for the i.MX94 chip, which is backward compatible with i.MX95. Set it to fall back to "fsl,imx95-sai". Signed-off-by: Frank Li <Frank.Li@nxp.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20250306171013.243332-1-Frank.Li@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-03-17regulator: dt-bindings: pca9450: Add nxp,pf9453 compatible stringFrank Li1-1/+23
Add the compatible string "nxp,pf9453" for the PF9453 regulator. The PF9453 is similar to the PCA9460 but supports only LDO1, LDO2, LDO_SVNS, and BUCK[1-4]. Restrict LDO and BUCK numbers for nxp,pf9453 and keep the same restriction for other compatible strings. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20250314-pf9453-v5-1-ab0cf1f871b0@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-03-17ASoC: dt-bindings: mediatek,mt8188-mt6359: Add mediatek,accdetNícolas F. R. A. Prado1-0/+8
Add a mediatek,accdet phandle property to allow getting a reference to the MT6359 ACCDET block, which is responsible for detecting jack insertion/removal. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://patch.msgid.link/20250306-mt8188-accdet-v3-1-7828e835ff4b@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-03-17ASoC: dt-bindings: Add schema for "awinic,aw88166"Weidong Wang1-0/+1
Add the awinic,aw88166 property to support the aw88166 chip. Signed-off-by: Weidong Wang <wangweidong.a@awinic.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250312120100.9730-2-wangweidong.a@awinic.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-03-16dt-bindings: phy: rockchip: Add rk3562 naneng-combophy compatibleKever Yang1-0/+1
rk3562 use the same Naneng Combo Phy driver as rk3568. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250227110836.2343158-1-kever.yang@rock-chips.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-03-16dt-bindings: phy: Add Rockchip MIPI C-/D-PHY schemaHeiko Stuebner1-0/+87
Add dt-binding schema for the MIPI C-/D-PHY found on Rockchip RK3588 SoCs. Tested-by: Daniel Semkowicz <dse@thaumatec.com> Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com> Tested-by: Quentin Schulz <quentin.schulz@cherry.de> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de> Link: https://lore.kernel.org/r/20250313134035.278133-2-heiko@sntech.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-03-16Documentation/kbuild: Fix indentation in modules.rst exampleKefan Liu1-1/+1
Correct the indentation in an example within the `modules.rst` file to improve readability. Signed-off-by: Kefan Liu <liukefan24s@ict.ac.cn> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-03-16cxl: Remove driverAndrew Donnellan4-500/+28
Remove the cxl driver that provides support for the IBM Coherent Accelerator Processor Interface. Revert or clean up associated code in arch/powerpc that is no longer necessary. cxl has received minimal maintenance for several years, and is not supported on the Power10 processor. We aren't aware of any users who are likely to be using recent kernels. Thanks to Mikey Neuling, Ian Munsie, Daniel Axtens, Frederic Barrat, Christophe Lombard, Philippe Bergheaud, Vaibhav Jain and Alastair D'Silva for their work on this driver over the years. Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Acked-by: Madhavan Srinivasan <maddy@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://patch.msgid.link/20250219070007.177725-2-ajd@linux.ibm.com
2025-03-16Merge tag 'input-for-v6.14-rc6' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - several new device IDs added to xpad game controller driver - support for imagis IST3038H variant of chip added to imagis touch controller driver - a fix for GPIO allocation for ads7846 touch controller driver - a fix for iqs7222 driver to properly support status register - a fix for goodix-berlin touch controller driver to use the right name for the regulator - more i8042 quirks to better handle several old Clevo devices. * tag 'input-for-v6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: MAINTAINERS: Remove myself from the goodix touchscreen maintainers Input: iqs7222 - preserve system status register Input: i8042 - swap old quirk combination with new quirk for more devices Input: i8042 - swap old quirk combination with new quirk for several devices Input: i8042 - add required quirks for missing old boardnames Input: i8042 - swap old quirk combination with new quirk for NHxxRZQ Input: xpad - rename QH controller to Legion Go S Input: xpad - add support for TECNO Pocket Go Input: xpad - add support for ZOTAC Gaming Zone Input: goodix-berlin - fix vddio regulator references Input: goodix-berlin - fix comment referencing wrong regulator Input: imagis - add support for imagis IST3038H dt-bindings: input/touchscreen: imagis: add compatible for ist3038h Input: xpad - add multiple supported devices Input: xpad - add 8BitDo SN30 Pro, Hyperkin X91 and Gamesir G7 SE controllers Input: ads7846 - fix gpiod allocation Input: wdt87xx_i2c - fix compiler warning
2025-03-16Merge tag 'rust-fixes-6.14-3' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux Pull rust fixes from Miguel Ojeda: "Toolchain and infrastructure: - Disallow BTF generation with Rust + LTO - Improve rust-analyzer support 'kernel' crate: - 'init' module: remove 'Zeroable' implementation for a couple types that should not have it - 'alloc' module: fix macOS failure in host test by satisfying POSIX alignment requirement - Add missing '\n's to 'pr_*!()' calls And a couple other minor cleanups" * tag 'rust-fixes-6.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: scripts: generate_rust_analyzer: add uapi crate scripts: generate_rust_analyzer: add missing include_dirs scripts: generate_rust_analyzer: add missing macros deps rust: Disallow BTF generation with Rust + LTO rust: task: fix `SAFETY` comment in `Task::wake_up` rust: workqueue: add missing newline to pr_info! examples rust: sync: add missing newline in locked_by log example rust: init: add missing newline to pr_info! calls rust: error: add missing newline to pr_warn! calls rust: docs: add missing newline to printing macro examples rust: alloc: satisfy POSIX alignment requirement rust: init: fix `Zeroable` implementation for `Option<NonNull<T>>` and `Option<KBox<T>>` rust: remove leftover mentions of the `alloc` crate
2025-03-16Merge branch 'fixes' into topic/cxlMichael Ellerman5-5/+104
Merge our fixes branch to bring in the changes to the CXL documentation that the CXL removal patch depends on.
2025-03-15bpf, docs: Fix broken link to renamed bpf_iter_task_vmas.cT.J. Mercier1-1/+1
This file was renamed from bpf_iter_task_vma.c. Fixes: 45b38941c81f ("selftests/bpf: Rename bpf_iter_task_vma.c to bpf_iter_task_vmas.c") Signed-off-by: T.J. Mercier <tjmercier@google.com> Acked-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20250304204520.201115-1-tjmercier@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-15kbuild: add Kbuild bash completionMasahiro Yamada2-0/+67
Kernel build commands can sometimes be long, particularly when cross-compiling, making them tedious to type and prone to mistypes. This commit introduces bash completion support for common variables and targets in Kbuild. For installation instructions, please refer to the documentation in Documentation/kbuild/bash-completion.rst. The following examples demonstrate how this saves typing. [Example 1] a long command line for cross-compiling $ make A<TAB> -> completes 'A' to 'ARCH=' $ make ARCH=<TAB> -> displays all supported architectures $ make ARCH=arm64 CR<TAB> -> completes 'CR' to 'CROSS_COMPILE=' $ make ARCH=arm64 CROSS_COMPILE=<TAB> -> displays installed toolchains $ make ARCH=arm64 CROSS_COMPILE=aa<TAB> -> completes 'CROSS_COMPILE=aa' to 'CROSS_COMPILE=aarch64-linux-gnu-' $ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- def<TAB> -> completes 'def' to 'defconfig' [Example 2] a single build target $ make f<TAB> -> completes 'f' to 'fs/' $ make fs/<TAB> -> displays objects and sub-directories in fs/ $ make fs/xf<TAB> -> completes 'fs/xf' to 'fs/xfs/' $ make fs/xfs/l<TAB> -> completes 'fs/xfs/l' to 'fs/xfs/libxfs/xfs_' $ make fs/xfs/libxfs/xfs_g<TAB> -> completes 'fs/xfs/libxfs/xfs_g' to 'fs/xfs/libxfs/xfs_group.o' This does not aim to provide a complete list of variables and targets, as there are too many. However, it covers variables and targets used in common scenarios, and I hope this is useful enough. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nicolas Schier <n.schier@avm.de> Tested-by: Nicolas Schier <n.schier@avm.de>
2025-03-15docs: kconfig: Mention IS_REACHABLE as way for optional dependencyKrzysztof Kozlowski1-11/+18
Several drivers express optional Kconfig dependency with FOO || !FOO, but for many choices this is not suitable: lack of stubs for !FOO like in HWMON. Describe the second, less favorable way of optional dependency with IS_REACHABLE by moving the code from "imply" chapter to "Optional dependencies". Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-03-15kbuild: rust: add rustc-min-version support functionMiguel Ojeda1-0/+14
Introduce `rustc-min-version` support function that mimics `{gcc,clang}-min-version` ones, following commit 88b61e3bff93 ("Makefile.compiler: replace cc-ifversion with compiler-specific macros"). In addition, use it in the first use case we have in the kernel (which was done independently to minimize the changes needed for the fix). Signed-off-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Fiona Behrens <me@Kloenk.dev> Reviewed-by: Nicolas Schier <n.schier@avm.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-03-15kbuild: remove EXTRA_*FLAGS supportMasahiro Yamada2-21/+0
Commit f77bf01425b1 ("kbuild: introduce ccflags-y, asflags-y and ldflags-y") deprecated these in 2007. The migration should have been completed by now. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <kees@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org>
2025-03-15dt-bindings: rng: rockchip,rk3588-rng: Drop unnecessary status from exampleKrzysztof Kozlowski1-1/+0
Device nodes are enabled by default, so no need for 'status = "okay"' in the DTS example. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-03-15Documentation: bcachefs: SubmittingPatches: Convert footnotes to reST syntaxBagas Sanjaya1-10/+12
Footnotes list are outputted in htmldocs simply as long-running paragraph instead. Use reST numbered footnotes syntax for the job. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15Documentation: bcachefs: SubmittingPatches: Demote section headingsBagas Sanjaya1-8/+13
SubmttingPatches.rst has 4 section headings, all under the same heading levels. In absence of title headings, these section headings are all ended up as title headings in the docs output, which also affect the index toctree (increasing titles to 6 from the original 2) due to :numbered: option. Demote second-to-last section headings, making "Submitting patches to bcachefs" as title heading. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15Documentation: bcachefs: Split index toctreeBagas Sanjaya1-1/+18
bcachefs subsystem currently has 4 docs: two are development notes and the rest are actual filesystem docs. These two groups are clearly distinct and can be organized. Split the toctree into two, one for each docs group. While at it, also reduce :maxdepth: so that only title headings are listed in the toctrees. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15Documentation: bcachefs: Add casefolding toctree entryBagas Sanjaya1-0/+1
Sphinx reports htmldocs toctree warning: Documentation/filesystems/bcachefs/casefolding.rst: WARNING: document isn't included in any toctree Fix the warning by adding casefolding documentation entry to bcachefs toctree. Fixes: bc5cc09246c5 ("bcachefs: bcachefs_metadata_version_casefolding") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-next/20250221161728.32739f85@canb.auug.org.au/ Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15Documentation: bcachefs: casefolding: Use bullet list for dirent structureBagas Sanjaya1-2/+2
The doc lists dirent structure for both regular and casefolded names, yet it is written (and rendered) as long paragraph instead. Write the structure list as bullet list. Fixes: bc5cc09246c5 ("bcachefs: bcachefs_metadata_version_casefolding") Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15Documentation: bcachefs: casefolding: Fix dentry/dcache considerations sectionBagas Sanjaya1-1/+3
Sphinx reports htmldocs warnings on dentry/dcache section: Documentation/filesystems/bcachefs/casefolding.rst:75: WARNING: Title underline too short. dentry/dcache considerations --------- [docutils] Documentation/filesystems/bcachefs/casefolding.rst:84: WARNING: Definition list ends without a blank line; unexpected unindent. [docutils] Fix the section by: * Extending the section underline to match the section title length; * Separating problem list from surrounding paragraphs. Fixes: bc5cc09246c5 ("bcachefs: bcachefs_metadata_version_casefolding") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-next/20250221161911.2d16138b@canb.auug.org.au/ Closes: https://lore.kernel.org/linux-next/20250221162135.79be0147@canb.auug.org.au/ Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15Documentation: bcachefs: casefolding: Do not italicize NULBagas Sanjaya1-2/+3
Sphinx reports htmldocs warning: Documentation/filesystems/bcachefs/casefolding.rst:36: WARNING: Inline interpreted text or phrase reference start-string without end-string. [docutils] That's because NUL word is italicized but it is written in plural form instead (`NUL`s). Sphinx, however, doesn't tip over when the italicized word in this fashion is followed by punctuation instead. Do not italicize the word to keep Sphinx happy. Fixes: bc5cc09246c5 ("bcachefs: bcachefs_metadata_version_casefolding") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-next/20250221162135.79be0147@canb.auug.org.au/ Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15bcachefs: bcachefs_metadata_version_casefoldingJoshua Ashton1-0/+87
This patch implements support for case-insensitive file name lookups in bcachefs. The implementation uses the same UTF-8 lowering and normalization that ext4 and f2fs is using. More information is provided in Documentation/bcachefs/casefolding.rst Compatibility notes: This uses the new versioning scheme for incompatible features where an incompatible feature is tied to a version number: the superblock says "we may use incompat features up to x" and "incompat features up to x are in use", disallowing mounting by previous versions. Additionally, and old style incompat feature bit is used, so that kernels without utf8 casefolding support know if casefolding specifically is in use and they're allowed to mount. Signed-off-by: Joshua Ashton <joshua@froggi.es> Cc: André Almeida <andrealmeid@igalia.com> Cc: Gabriel Krisman Bertazi <krisman@suse.de> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-03-15cxl/Documentation: Remove 'mixed' from sysfs mode docIra Weiny1-8/+7
Commit 188e9529a606 ("cxl: Remove the CXL_DECODER_MIXED mistake") removed the mixed mode. Remove it from the sysfs documentation. Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Link: https://patch.msgid.link/20250224-remove-mixed-sysfs-v1-1-a329db313dac@intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-03-15Merge branch 'for-6.15/extended-linear-cache' into cxl-for-next2Dave Jiang1-0/+6
Add support for Extended Linear Cache for CXL. Add enumeration support of the cache. Add MCE notification of the aliased memory address.
2025-03-15Merge branch 'for-6.15/dirty-shutdown' into cxl-for-next2Dave Jiang2-1/+13
Add support for Global Persistent Flush (GPF) and dirty shutdown accounting.
2025-03-15cxl/pmem: Export dirty shutdown count via sysfsDavidlohr Bueso2-1/+13
Similar to how the acpi_nfit driver exports Optane dirty shutdown count, introduce: /sys/bus/cxl/devices/nvdimm-bridge0/ndbusX/nmemY/cxl/dirty_shutdown Under the conditions that 1) dirty shutdown can be set, 2) Device GPF DVSEC exists, and 3) the count itself can be retrieved. Suggested-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://patch.msgid.link/20250220220235.276831-4-dave@stgolabs.net Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-03-15cxl/pci: Support Global Persistent Flush (GPF)Davidlohr Bueso1-1/+1
Add support for GPF flows. It is found that the CXL specification around this to be a bit too involved from the driver side. And while this should really all handled by the hardware, this patch takes things with a grain of salt. Upon respective port enumeration, both phase timeouts are set to a max of 20 seconds, which is the NMI watchdog default for lockup detection. The premise is that the kernel does not have enough information to set anything better than a max across the board and hope devices finish their GPF flows within the platform energy budget. Timeout detection is based on dirty Shutdown semantics. The driver will mark it as dirty, expecting that the device clear it upon a successful GPF event. The admin may consult the device Health and check the dirty shutdown counter to see if there was a problem with data integrity. [ davej: Explicitly set return to 0 in update_gpf_port_dvsec() ] [ davej: Add spec reference for 'struct cxl_mbox_set_shutdown_state_in ] [ davej: Fix 0-day reported issue ] Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Link: https://patch.msgid.link/20250124233533.910535-1-dave@stgolabs.net Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-03-15Merge tag 'imx-bindings-6.15' of ↵Arnd Bergmann1-16/+11
https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/dt i.MX dt-bindings changes for 6.15: - Add compatibles for Skov i.MX8MP variants, VAR-SOM-MX6UL SoM and Concerto, i.MX95 15x15 EVK, btt3 i.MX28 - Drop Toradex SOMs compatibles * tag 'imx-bindings-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: dt-bindings: arm: fsl: Add VAR-SOM-MX6UL SoM and Concerto board dt-bindings: arm: fsl: drop usage of Toradex SOMs compatible alone dt-bindings: arm: fsl: add i.MX95 15x15 EVK board dt-bindings: arm: fsl: add more compatibles for Skov i.MX8MP variants dt-bindings: arm: Document the btt3 i.MX28 based board Link: https://lore.kernel.org/r/20250312074005.663165-3-shawnguo2@yeah.net Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-15Merge tag 'spacemit-dt-for-6.15-1' of https://github.com/spacemit-com/linux ↵Arnd Bergmann1-0/+1
into soc/dt RISC-V SpacemiT DT changes for 6.15 - Add Milk-V Jupiter board - MAINTAINERS info * tag 'spacemit-dt-for-6.15-1' of https://github.com/spacemit-com/linux: riscv: dts: spacemit: Add Milk-V Jupiter board device tree dt-bindings: riscv: spacemit: Add Milk-V Jupiter board compatible MAINTAINERS: spacemit: update various info Link: https://lore.kernel.org/r/20250312003023-GYA76989@gentoo Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-15cxl: Document missing sysfs filesDavidlohr Bueso1-0/+18
Add to the ABI documentation the payload_max and label_storage_size read-only files, which have been there since the early days. Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Li Ming <ming.li@zohomail.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://patch.msgid.link/20250218224853.67457-3-dave@stgolabs.net Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-03-15cxl: Plug typos in ABI docDavidlohr Bueso1-4/+4
Trivially update where necessary. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Li Ming <ming.li@zohomail.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://patch.msgid.link/20250218224853.67457-2-dave@stgolabs.net Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-03-14Documentation/virt/kvm: Document on Trust Domain Extensions (TDX)Isaku Yamahata3-4/+265
Add documentation to Intel Trusted Domain Extensions (TDX) support. Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com> Message-ID: <20250227012021.1778144-21-binbin.wu@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-14KVM: x86: Introduce Intel specific quirk KVM_X86_QUIRK_IGNORE_GUEST_PATYan Zhao1-0/+22
Introduce an Intel specific quirk KVM_X86_QUIRK_IGNORE_GUEST_PAT to have KVM ignore guest PAT when this quirk is enabled. On AMD platforms, KVM always honors guest PAT. On Intel however there are two issues. First, KVM *cannot* honor guest PAT if CPU feature self-snoop is not supported. Second, UC access on certain Intel platforms can be very slow[1] and honoring guest PAT on those platforms may break some old guests that accidentally specify video RAM as UC. Those old guests may never expect the slowness since KVM always forces WB previously. See [2]. So, introduce a quirk that KVM can enable by default on all Intel platforms to avoid breaking old unmodifiable guests. Newer userspace can disable this quirk if it wishes KVM to honor guest PAT; disabling the quirk will fail if self-snoop is not supported, i.e. if KVM cannot obey the wish. The quirk is a no-op on AMD and also if any assigned devices have non-coherent DMA. This is not an issue, as KVM_X86_QUIRK_CD_NW_CLEARED is another example of a quirk that is sometimes automatically disabled. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Suggested-by: Sean Christopherson <seanjc@google.com> Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Yan Zhao <yan.y.zhao@intel.com> Link: https://lore.kernel.org/all/Ztl9NWCOupNfVaCA@yzhao56-desk.sh.intel.com # [1] Link: https://lore.kernel.org/all/87jzfutmfc.fsf@redhat.com # [2] Message-ID: <20250224070946.31482-1-yan.y.zhao@intel.com> [Use supported_quirks/inapplicable_quirks to support both AMD and no-self-snoop cases, as well as to remove the shadow_memtype_mask check from kvm_mmu_may_ignore_guest_pat(). - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-14KVM: TDX: Handle TDG.VP.VMCALL<ReportFatalError>Binbin Wu1-0/+6
Convert TDG.VP.VMCALL<ReportFatalError> to KVM_EXIT_SYSTEM_EVENT with a new type KVM_SYSTEM_EVENT_TDX_FATAL and forward it to userspace for handling. TD guest can use TDG.VP.VMCALL<ReportFatalError> to report the fatal error it has experienced. This hypercall is special because TD guest is requesting a termination with the error information, KVM needs to forward the hypercall to userspace anyway, KVM doesn't do parsing or conversion, it just dumps the 16 general-purpose registers to userspace and let userspace decide what to do. Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com> Message-ID: <20250222014225.897298-8-binbin.wu@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-14drm/xe/hwmon: expose fan speedRaag Jadav1-0/+24
Add hwmon support for fan1_input, fan2_input and fan3_input attributes, which will expose fan speed of respective channels in RPM when supported by hardware. With this in place we can monitor fan speed using lm-sensors tool. v2: Rely on platform checks instead of mailbox error (Aravind, Rodrigo) v3: Introduce has_fan_control flag (Rodrigo) Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250312085909.755073-1-raag.jadav@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-03-14Merge tag 'samsung-dt64-6.15' of ↵Arnd Bergmann3-34/+87
https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/dt Samsung DTS ARM64 changes for v6.15 1. Google GS101: - Disable GSA core pinctrl because its registers are not available for normal world. - Add APM (Active Power Management) mailbox and the ACPM firmware nodes. - Add new boards: Google Pixel 6 Pro (Raven). - Enable framebuffer and reboot-mode. 2. Exynos990: - Add PERIS clock controller, MCT timer 3. Exynos8895: - Define all remaining serial engine (USI) and syscon nodes, add MMC. - Enable microSD and touchsreen on Samsung Galaxy S8 (dreamlte). 4. ExynosAutov920: Add UFS and CPU cache information. 5. Various cleanups. This includes two topic branches with DT bindings, which might be shared with other trees depending on needs: 1. for-v6.15/samsung-clk-dt-bindings with Exynos990 clock controller header constants. 2. for-v6.15/samsung-soc-dt-bindings with Exynos USI serial engines header constants rework. * tag 'samsung-dt64-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (25 commits) arm64: dts: tesla: Change labels to lower-case arm64: dts: exynos: gs101: Change labels to lower-case arm64: dts: exynosautov920: add ufs phy for ExynosAutov920 SoC arm64: dts: exynosautov920: add CPU cache information arm64: dts: exynos: gs101: add ACPM protocol node arm64: dts: exynos: gs101: add AP to APM mailbox node arm64: dts: exynos: gs101: add SRAM node arm64: dts: exynos: gs101: add reboot-mode support (SYSIP_DAT0) arm64: dts: exynos: gs101: align poweroff writes with downstream arm64: dts: exynos: gs101: drop explicit regmap from reboot nodes arm64: dts: exynos8895: Rename PMU nodes to fixup sorting arm64: dts: exynos8895-dreamlte: enable support for the touchscreen arm64: dts: exynos8895-dreamlte: enable support for microSD storage arm64: dts: exynos8895: add a node for mmc arm64: dts: exynos8895: define all usi nodes arm64: dts: exynos8895: add syscon nodes for peric0/1 and fsys0/1 arm64: dts: exynos990: Rename and sort PMU nodes arm64: dts: exynos990: Add CMU_PERIS and MCT nodes dt-bindings: soc: samsung: usi: add USIv1 and samsung,exynos8895-usi dt-bindings: clock: exynos990: Add CMU_PERIS block ... Link: https://lore.kernel.org/r/20250309185601.10616-2-krzysztof.kozlowski@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-14Merge tag 'v6.15-rockchip-dts64-1' of ↵Arnd Bergmann5-2/+96
https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt New boards: MNT-Reform2 laptop (rk3588), OrangePi5-Ultra (rk3588), Radxa Rock 4D (rk3576), Firefly ROC-RK3576-PC, Photonicat (rk3568) New overlays: Video-adapters for Theobroma boards and one adapter used in hw test scenarios. Interesting bigger changes contain clock support for rk3528; support for the hdmi1 controller as well as hdmi-audio support on both controllers on rk3588; the hdmi-receiver of the rk3588 landed, and rk3576 got basic graphics support and can now do hdmi output. Another big block is that we're now doing overlays way better and are including build-testing for applied overlays to the base dtb - similar to how other arches already do this. Of cours a big list of more controllers for rk3576 (nvmem, sfc), rk3588 (rng, spdif, regulator for gpu power-domain) and rk3528 (saradc, pinctrl) And a huge number of board-level improvements and additions. * tag 'v6.15-rockchip-dts64-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: (89 commits) arm64: dts: rockchip: Add SPI NOR device on the ROCK 4D arm64: dts: rockchip: Add SFC nodes for rk3576 arm64: dts: rockchip: Add maskrom button to Radxa E20C arm64: dts: rockchip: Add SARADC node for RK3528 arm64: dts: rockchip: Add user button to Radxa E20C arm64: dts: rockchip: Add leds node to Radxa E20C arm64: dts: rockchip: Add HDMI support for rock-4d arm64: dts: rockchip: enable SCMI clk for RK3528 SoC arm64: dts: rockchip: Enable HDMI receiver on rock-5b arm64: dts: rockchip: Add device tree support for HDMI RX Controller arm64: dts: rockchip: Add rk3528 QoS register node dt-bindings: mfd: syscon: Add rk3528 QoS register compatible arm64: dts: rockchip: add MNT Reform 2 laptop dt-bindings: arm: rockchip: Add MNT Reform 2 (RCORE) dt-bindings: soc: rockchip: Add RK3528 VPU GRF syscon dt-bindings: soc: rockchip: Add RK3528 VO GRF syscon arm64: dts: rockchip: Enable hdmi out display for rk3576-evb-v10 arm64: dts: rockchip: Enable hdmi display on sige5 arm64: dts: rockchip: Add hdmi for rk3576 arm64: dts: rockchip: Add vop for rk3576 ... Link: https://lore.kernel.org/r/13791512.uLZWGnKmhe@phil Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-14Merge tag 'tegra-for-6.15-dt-bindings' of ↵Arnd Bergmann2-0/+2
https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt dt-bindings: Changes for v6.15-rc1 This adds compatible strings for Tegra114 HDA and Tegra124 MIPI. * tag 'tegra-for-6.15-dt-bindings' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: dt-bindings: Document Tegra114 HDA support dt-bindings: display: tegra: Document Tegra124 MIPI Link: https://lore.kernel.org/r/20250307162332.3451523-3-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-14dt-bindings: arm: qcom: Document Lenovo ThinkPad T14s Gen 6 LCD and OLEDAbel Vesa1-1/+3
Due to the difference in how the panel backlight is being handled between the OLED variant and LCD one, it is required to have two separate DTBs. So document the compatible string for both the OLED and LCD variants. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Link: https://lore.kernel.org/r/20250314140325.4143779-2-abel.vesa@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-03-14dt-bindings: mfd: syscon: Add the pbus-csr node for Airoha EN7581 SoCLorenzo Bianconi1-0/+2
Introduce pbus-csr document bindings in syscon.yaml for EN7581 SoC. The airoha pbus-csr block provides a configuration interface for the PBUS controller used to detect if a given address is accessible on PCIe controller. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250312-en7581-pbus_csr-binding-v3-1-7bd9f00a25a4@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-03-14bindings: pinctrl: ingenic: add x1600H. Nikolaus Schaller1-0/+2
Add bindings for the Lumissil/Ingenic X1600 SoC. Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Link: https://lore.kernel.org/a9865c817d5aa9046dcbb251d834c1dbcc4e9219.1740823241.git.hns@goldelico.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-03-14dt-bindings: mfd: syscon: Add rk3528 QoS register compatibleChukun Pan1-0/+2
Document rk3528 compatible for QoS registers. Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250306123809.273655-2-amadeus@jmu.edu.cn Signed-off-by: Lee Jones <lee@kernel.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-20 23:41:56 +0300