- riscv,sv57
- riscv,none
+ reg:
+ description:
+ The hart ID of this CPU node.
+
riscv,cbom-block-size:
$ref: /schemas/types.yaml#/definitions/uint32
description:
const: 1
compatible:
- const: riscv,cpu-intc
+ oneOf:
+ - items:
+ - const: andestech,cpu-intc
+ - const: riscv,cpu-intc
+ - const: riscv,cpu-intc
interrupt-controller: true
filing info, a direct bug tracker link, or a mailto: URI.
C: URI for *chat* protocol, server and channel where developers
usually hang out, for example irc://server/channel.
- P: Subsystem Profile document for more details submitting
+ P: *Subsystem Profile* document for more details submitting
patches to the given subsystem. This is either an in-tree file,
or a URI. See Documentation/maintainer/maintainer-entry-profile.rst
for details.
F: drivers/iio/accel/adxl372_i2c.c
F: drivers/iio/accel/adxl372_spi.c
+AF8133J THREE-AXIS MAGNETOMETER DRIVER
+M: Ondřej Jirman <megi@xff.cz>
+S: Maintained
+F: Documentation/devicetree/bindings/iio/magnetometer/voltafield,af8133j.yaml
+F: drivers/iio/magnetometer/af8133j.c
+
AF9013 MEDIA DRIVER
L: linux-media@vger.kernel.org
S: Orphan
M: David Airlie <airlied@redhat.com>
L: dri-devel@lists.freedesktop.org
S: Maintained
-T: git git://anongit.freedesktop.org/drm/drm
+T: git https://gitlab.freedesktop.org/drm/kernel.git
F: drivers/char/agp/
F: include/linux/agp*
F: include/uapi/linux/agp*
F: drivers/infiniband/hw/efa/
F: include/uapi/rdma/efa-abi.h
+AMD ADDRESS TRANSLATION LIBRARY (ATL)
+M: Yazen Ghannam <Yazen.Ghannam@amd.com>
+L: linux-edac@vger.kernel.org
+S: Supported
+F: drivers/ras/amd/atl/*
+
AMD AXI W1 DRIVER
M: Kris Chaplin <kris.chaplin@amd.com>
R: Thomas Delev <thomas.delev@amd.com>
F: tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
AMD PTDMA DRIVER
-M: Sanjay R Mehta <sanju.mehta@amd.com>
+M: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
L: dmaengine@vger.kernel.org
S: Maintained
F: drivers/dma/ptdma/
F: drivers/perf/amlogic/
F: include/soc/amlogic/
+AMPHENOL CHIPCAP 2 HUMIDITY-TEMPERATURE IIO DRIVER
+M: Javier Carrasco <javier.carrasco.cruz@gmail.com>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/hwmon/amphenol,chipcap2.yaml
+F: Documentation/hwmon/chipcap2.rst
+F: drivers/hwmon/chipcap2.c
+
AMPHION VPU CODEC V4L2 DRIVER
M: Ming Qian <ming.qian@nxp.com>
M: Zhou Peng <eagle.zhou@nxp.com>
S: Supported
W: http://ez.analog.com/community/linux-device-drivers
F: Documentation/devicetree/bindings/iio/adc/adi,ad7091r*
-F: drivers/iio/adc/drivers/iio/adc/ad7091r*
+F: drivers/iio/adc/ad7091r*
ANALOG DEVICES INC AD7192 DRIVER
M: Alexandru Tachici <alexandru.tachici@analog.com>
F: Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
F: drivers/hwmon/adm1177.c
+ANALOG DEVICES INC ADMFM2000 DRIVER
+M: Kim Seer Paller <kimseer.paller@analog.com>
+L: linux-iio@vger.kernel.org
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml
+F: drivers/iio/frequency/admfm2000.c
+
ANALOG DEVICES INC ADMV1013 DRIVER
M: Antoniu Miclaus <antoniu.miclaus@analog.com>
L: linux-iio@vger.kernel.org
F: drivers/staging/iio/*/ad*
X: drivers/iio/*/adjd*
-ANALOG DEVICES INC MAX31760 DRIVER
-M: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
-S: Maintained
-W: http://wiki.analog.com/
-W: https://ez.analog.com/linux-software-drivers
-F: Documentation/devicetree/bindings/hwmon/adi,max31760.yaml
-F: Documentation/hwmon/max31760.rst
-F: drivers/hwmon/max31760.c
-
ANALOGBITS PLL LIBRARIES
M: Paul Walmsley <paul.walmsley@sifive.com>
+M: Samuel Holland <samuel.holland@sifive.com>
S: Supported
F: drivers/clk/analogbits/*
F: include/linux/clk/analogbits*
M: Sascha Hauer <s.hauer@pengutronix.de>
R: Pengutronix Kernel Team <kernel@pengutronix.de>
R: Fabio Estevam <festevam@gmail.com>
-R: NXP Linux Team <linux-imx@nxp.com>
+L: imx@lists.linux.dev
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/rtc/rtc-mt2712.txt
-F: Documentation/devicetree/bindings/rtc/rtc-mt7622.txt
+F: Documentation/devicetree/bindings/rtc/mediatek,mt2712-rtc.yaml
+F: Documentation/devicetree/bindings/rtc/mediatek,mt7622-rtc.yaml
F: drivers/rtc/rtc-mt2712.c
F: drivers/rtc/rtc-mt6397.c
F: drivers/rtc/rtc-mt7622.c
F: Documentation/devicetree/bindings/arm/ste-*
F: Documentation/devicetree/bindings/arm/ux500.yaml
F: Documentation/devicetree/bindings/arm/ux500/
+F: Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml
F: Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
F: arch/arm/boot/dts/st/ste-*
F: arch/arm/mach-nomadik/
F: drivers/clocksource/clksrc-dbx500-prcmu.c
F: drivers/dma/ste_dma40*
F: drivers/pmdomain/st/ste-ux500-pm-domain.c
+F: drivers/gpio/gpio-nomadik.c
F: drivers/hwspinlock/u8500_hsem.c
F: drivers/i2c/busses/i2c-nomadik.c
F: drivers/iio/adc/ab8500-gpadc.c
F: drivers/*/*wpcm*
ARM/NXP S32G ARCHITECTURE
-M: Chester Lin <chester62515@gmail.com>
-R: Andreas Färber <afaerber@suse.de>
+R: Chester Lin <chester62515@gmail.com>
R: Matthias Brugger <mbrugger@suse.com>
-R: NXP S32 Linux Team <s32@nxp.com>
+R: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>
+L: NXP S32 Linux Team <s32@nxp.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm64/boot/dts/freescale/s32g*.dts*
+F: drivers/pinctrl/nxp/
ARM/Orion SoC/Technologic Systems TS-78xx platform support
M: Alexander Clouter <alex@digriz.org.uk>
F: drivers/phy/qualcomm/
F: drivers/power/*/msm*
F: drivers/reset/reset-qcom-*
+F: drivers/rtc/rtc-pm8xxx.c
F: drivers/spi/spi-geni-qcom.c
F: drivers/spi/spi-qcom-qspi.c
F: drivers/spi/spi-qup.c
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-media@vger.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml
F: drivers/media/platform/samsung/s5p-mfc/
ARM/SOCFPGA ARCHITECTURE
ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS
M: Corentin Chary <corentin.chary@gmail.com>
-L: acpi4asus-user@lists.sourceforge.net
+M: Luke D. Jones <luke@ljones.dev>
L: platform-driver-x86@vger.kernel.org
S: Maintained
-W: http://acpi4asus.sf.net
+W: https://asus-linux.org/
F: drivers/platform/x86/asus*.c
F: drivers/platform/x86/eeepc*.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
F: drivers/platform/x86/asus-tf103c-dock.c
+ASUS ROG RYUJIN AIO HARDWARE MONITOR DRIVER
+M: Aleksa Savic <savicaleksa83@gmail.com>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: drivers/hwmon/asus_rog_ryujin.c
+
ASUS WIRELESS RADIO CONTROL DRIVER
M: João Paulo Rechi Vita <jprvita@gmail.com>
L: platform-driver-x86@vger.kernel.org
F: include/linux/auxiliary_bus.h
AUXILIARY DISPLAY DRIVERS
-M: Miguel Ojeda <ojeda@kernel.org>
-S: Maintained
+M: Andy Shevchenko <andy@kernel.org>
+R: Geert Uytterhoeven <geert@linux-m68k.org>
+S: Odd Fixes
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay.git
F: Documentation/devicetree/bindings/auxdisplay/
F: drivers/auxdisplay/
F: include/linux/cfag12864b.h
+F: include/uapi/linux/map_to_14segment.h
+F: include/uapi/linux/map_to_7segment.h
AVIA HX711 ANALOG DIGITAL CONVERTER IIO DRIVER
M: Andreas Klinger <ak@it-klinger.de>
L: linux-bcachefs@vger.kernel.org
S: Supported
C: irc://irc.oftc.net/bcache
+T: git https://evilpiepirate.org/git/bcachefs.git
F: fs/bcachefs/
BDISP ST MEDIA DRIVER
BITMAP API
M: Yury Norov <yury.norov@gmail.com>
-R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
R: Rasmus Villemoes <linux@rasmusvillemoes.dk>
S: Maintained
F: include/linux/bitfield.h
M: Daniel Borkmann <daniel@iogearbox.net>
M: Andrii Nakryiko <andrii@kernel.org>
R: Martin KaFai Lau <martin.lau@linux.dev>
+R: Eduard Zingerman <eddyz87@gmail.com>
R: Song Liu <song@kernel.org>
R: Yonghong Song <yonghong.song@linux.dev>
R: John Fastabend <john.fastabend@gmail.com>
BPF [LIBRARY] (libbpf)
M: Andrii Nakryiko <andrii@kernel.org>
+M: Eduard Zingerman <eddyz87@gmail.com>
L: bpf@vger.kernel.org
S: Maintained
F: tools/lib/bpf/
BPF [SELFTESTS] (Test Runners & Infrastructure)
M: Andrii Nakryiko <andrii@kernel.org>
+M: Eduard Zingerman <eddyz87@gmail.com>
R: Mykola Lysenko <mykolal@fb.com>
L: bpf@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/broadcom/bnxt/
F: include/linux/firmware/broadcom/tee_bnxt_fw.h
-BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER
-M: Arend van Spriel <aspriel@gmail.com>
-M: Franky Lin <franky.lin@broadcom.com>
-M: Hante Meuleman <hante.meuleman@broadcom.com>
+BROADCOM BRCM80211 IEEE802.11 WIRELESS DRIVERS
+M: Arend van Spriel <arend.vanspriel@broadcom.com>
L: linux-wireless@vger.kernel.org
+L: brcm80211@lists.linux.dev
L: brcm80211-dev-list.pdl@broadcom.com
S: Supported
F: drivers/net/wireless/broadcom/brcm80211/
+F: include/linux/platform_data/brcmfmac.h
BROADCOM BRCMSTB GPIO DRIVER
M: Doug Berger <opendmb@gmail.com>
CACHEFILES: FS-CACHE BACKEND FOR CACHING ON MOUNTED FILESYSTEMS
M: David Howells <dhowells@redhat.com>
-L: linux-cachefs@redhat.com (moderated for non-subscribers)
+L: netfs@lists.linux.dev
S: Supported
F: Documentation/filesystems/caching/cachefiles.rst
F: fs/cachefiles/
F: net/sched/sch_cake.c
CAN NETWORK DRIVERS
-M: Wolfgang Grandegger <wg@grandegger.com>
M: Marc Kleine-Budde <mkl@pengutronix.de>
+M: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
L: linux-can@vger.kernel.org
S: Maintained
W: https://github.com/linux-can
S: Maintained
F: drivers/platform/chrome/cros_hps_i2c.c
+CHROMEOS EC WATCHDOG
+M: Lukasz Majczak <lma@chromium.org>
+L: chrome-platform@lists.linux.dev
+S: Maintained
+F: drivers/watchdog/cros_ec_wdt.c
+
CHRONTEL CH7322 CEC DRIVER
M: Joe Tessler <jrt@google.com>
L: linux-media@vger.kernel.org
F: include/sound/cs*
F: sound/pci/hda/cirrus*
F: sound/pci/hda/cs*
+F: sound/pci/hda/hda_component*
F: sound/pci/hda/hda_cs_dsp_ctl.*
F: sound/soc/codecs/cs*
R: Ronnie Sahlberg <ronniesahlberg@gmail.com> (directory leases, sparse files)
R: Shyam Prasad N <sprasad@microsoft.com> (multichannel)
R: Tom Talpey <tom@talpey.com> (RDMA, smbdirect)
+R: Bharath SM <bharathsm@microsoft.com> (deferred close, directory leases)
L: linux-cifs@vger.kernel.org
L: samba-technical@lists.samba.org (moderated for non-subscribers)
S: Supported
L: linux-cxl@vger.kernel.org
S: Maintained
F: drivers/cxl/
+F: include/linux/cxl-einj.h
F: include/linux/cxl-event.h
F: include/uapi/linux/cxl_mem.h
F: tools/testing/cxl/
M: Johannes Weiner <hannes@cmpxchg.org>
M: Michal Hocko <mhocko@kernel.org>
M: Roman Gushchin <roman.gushchin@linux.dev>
-M: Shakeel Butt <shakeelb@google.com>
+M: Shakeel Butt <shakeel.butt@linux.dev>
R: Muchun Song <muchun.song@linux.dev>
L: cgroups@vger.kernel.org
L: linux-mm@kvack.org
S: Maintained
+F: include/linux/memcontrol.h
F: mm/memcontrol.c
F: mm/swap_cgroup.c
F: samples/cgroup/*
F: Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
F: drivers/net/can/ctucanfd/
+CVE ASSIGNMENT CONTACT
+M: CVE Assignment Team <cve@kernel.org>
+S: Maintained
+F: Documentation/process/cve.rst
+
CW1200 WLAN driver
S: Orphan
F: drivers/net/wireless/st/cw1200/
F: drivers/platform/x86/dell/dell-wmi-descriptor.c
DELL WMI HARDWARE PRIVACY SUPPORT
-M: Perry Yuan <Perry.Yuan@dell.com>
L: Dell.Client.Kernel@dell.com
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: include/linux/dm-*.h
F: include/uapi/linux/dm-*.h
+DEVICE-MAPPER VDO TARGET
+M: Matthew Sakai <msakai@redhat.com>
+M: dm-devel@lists.linux.dev
+L: dm-devel@lists.linux.dev
+S: Maintained
+F: Documentation/admin-guide/device-mapper/vdo*.rst
+F: drivers/md/dm-vdo/
+
DEVLINK
M: Jiri Pirko <jiri@resnulli.us>
L: netdev@vger.kernel.org
M: Support Opensource <support.opensource@diasemi.com>
S: Supported
W: http://www.dialog-semiconductor.com/products
-F: Documentation/devicetree/bindings/input/da90??-onkey.txt
F: Documentation/devicetree/bindings/input/dlg,da72??.txt
+F: Documentation/devicetree/bindings/input/dlg,da9062-onkey.yaml
F: Documentation/devicetree/bindings/mfd/da90*.txt
F: Documentation/devicetree/bindings/mfd/dlg,da90*.yaml
F: Documentation/devicetree/bindings/regulator/da92*.txt
F: Documentation/devicetree/bindings/regulator/dlg,da9*.yaml
F: Documentation/devicetree/bindings/regulator/dlg,slg51000.yaml
F: Documentation/devicetree/bindings/sound/da[79]*.txt
-F: Documentation/devicetree/bindings/thermal/da90??-thermal.txt
-F: Documentation/devicetree/bindings/watchdog/dlg,da90??-watchdog.yaml
+F: Documentation/devicetree/bindings/thermal/dlg,da9062-thermal.yaml
+F: Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
F: Documentation/hwmon/da90??.rst
F: drivers/gpio/gpio-da90??.c
F: drivers/hwmon/da90??-hwmon.c
S: Maintained
F: Documentation/admin-guide/quickly-build-trimmed-linux.rst
F: Documentation/admin-guide/reporting-issues.rst
+F: Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
DOCUMENTATION SCRIPTS
M: Mauro Carvalho Chehab <mchehab@kernel.org>
S: Maintained
B: https://gitlab.freedesktop.org/drm
C: irc://irc.oftc.net/dri-devel
-T: git git://anongit.freedesktop.org/drm/drm
+T: git https://gitlab.freedesktop.org/drm/kernel.git
F: Documentation/devicetree/bindings/display/
F: Documentation/devicetree/bindings/gpu/
F: Documentation/gpu/
X: drivers/gpu/drm/msm/
X: drivers/gpu/drm/nouveau/
X: drivers/gpu/drm/radeon/
-X: drivers/gpu/drm/renesas/
+X: drivers/gpu/drm/renesas/rcar-du/
X: drivers/gpu/drm/tegra/
DRM DRIVERS FOR ALLWINNER A10
F: Documentation/devicetree/bindings/display/renesas,du.yaml
F: drivers/gpu/drm/renesas/rcar-du/
+DRM DRIVERS FOR RENESAS RZ
+M: Biju Das <biju.das.jz@bp.renesas.com>
+L: dri-devel@lists.freedesktop.org
+L: linux-renesas-soc@vger.kernel.org
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
+F: drivers/gpu/drm/renesas/rz-du/
+
DRM DRIVERS FOR RENESAS SHMOBILE
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
M: Geert Uytterhoeven <geert+renesas@glider.be>
L: dri-devel@lists.freedesktop.org
L: linux-renesas-soc@vger.kernel.org
S: Supported
+T: git git://anongit.freedesktop.org/drm/drm-misc
F: Documentation/devicetree/bindings/display/renesas,shmobile-lcdc.yaml
F: drivers/gpu/drm/renesas/shmobile/
F: include/linux/platform_data/shmob_drm.h
DRM GPU SCHEDULER
M: Luben Tuikov <ltuikov89@gmail.com>
+M: Matthew Brost <matthew.brost@intel.com>
L: dri-devel@lists.freedesktop.org
S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
L: linux-edac@vger.kernel.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git edac-for-next
-F: Documentation/admin-guide/ras.rst
F: Documentation/driver-api/edac.rst
F: drivers/edac/
F: include/linux/edac.h
EMMC CMDQ HOST CONTROLLER INTERFACE (CQHCI) DRIVER
M: Adrian Hunter <adrian.hunter@intel.com>
-M: Ritesh Harjani <riteshh@codeaurora.org>
-M: Asutosh Das <asutoshd@codeaurora.org>
+M: Asutosh Das <quic_asutoshd@quicinc.com>
+R: Ritesh Harjani <ritesh.list@gmail.com>
L: linux-mmc@vger.kernel.org
S: Supported
F: drivers/mmc/host/cqhci*
F: include/linux/errseq.h
F: lib/errseq.c
+ESD CAN NETWORK DRIVERS
+M: Stefan Mätje <stefan.maetje@esd.eu>
+R: socketcan@esd.eu
+L: linux-can@vger.kernel.org
+S: Maintained
+F: drivers/net/can/esd/
+
ESD CAN/USB DRIVERS
M: Frank Jungclaus <frank.jungclaus@esd.eu>
R: socketcan@esd.eu
S: Maintained
F: rust/kernel/net/phy.rs
-EXEC & BINFMT API
+EXEC & BINFMT API, ELF
R: Eric Biederman <ebiederm@xmission.com>
R: Kees Cook <keescook@chromium.org>
L: linux-mm@kvack.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/execve
+F: Documentation/userspace-api/ELF.rst
F: fs/*binfmt_*.c
F: fs/exec.c
F: include/linux/binfmts.h
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat.git
F: fs/exfat/
+EXPRESSWIRE PROTOCOL LIBRARY
+M: Duje Mihanović <duje.mihanovic@skole.hr>
+L: linux-leds@vger.kernel.org
+S: Maintained
+F: drivers/leds/leds-expresswire.c
+F: include/linux/leds-expresswire.h
+
EXT2 FILE SYSTEM
M: Jan Kara <jack@suse.com>
L: linux-ext4@vger.kernel.org
S: Maintained
F: Documentation/filesystems/ext2.rst
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git
F: fs/ext2/
F: include/linux/ext2*
FILE LOCKING (flock() and fcntl()/lockf())
M: Jeff Layton <jlayton@kernel.org>
M: Chuck Lever <chuck.lever@oracle.com>
+R: Alexander Aring <alex.aring@gmail.com>
L: linux-fsdevel@vger.kernel.org
S: Maintained
F: fs/fcntl.c
FILESYSTEMS [NETFS LIBRARY]
M: David Howells <dhowells@redhat.com>
-L: linux-cachefs@redhat.com (moderated for non-subscribers)
+R: Jeff Layton <jlayton@kernel.org>
+L: netfs@lists.linux.dev
L: linux-fsdevel@vger.kernel.org
S: Supported
F: Documentation/filesystems/caching/
M: Wei Fang <wei.fang@nxp.com>
R: Shenwei Wang <shenwei.wang@nxp.com>
R: Clark Wang <xiaoning.wang@nxp.com>
-R: NXP Linux Team <linux-imx@nxp.com>
+L: imx@lists.linux.dev
L: netdev@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/fsl,fec.yaml
FREESCALE IMX LPI2C DRIVER
M: Dong Aisheng <aisheng.dong@nxp.com>
L: linux-i2c@vger.kernel.org
-L: linux-imx@nxp.com
+L: imx@lists.linux.dev
S: Maintained
F: Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
F: drivers/i2c/busses/i2c-imx-lpi2c.c
F: drivers/soc/fsl/qe/qmc.c
F: include/soc/fsl/qe/qmc.h
+FREESCALE QUICC ENGINE QMC HDLC DRIVER
+M: Herve Codina <herve.codina@bootlin.com>
+L: netdev@vger.kernel.org
+L: linuxppc-dev@lists.ozlabs.org
+S: Maintained
+F: drivers/net/wan/fsl_qmc_hdlc.c
+
FREESCALE QUICC ENGINE TSA DRIVER
M: Herve Codina <herve.codina@bootlin.com>
L: linuxppc-dev@lists.ozlabs.org
F: drivers/i2c/muxes/i2c-mux-gpio.c
F: include/linux/platform_data/i2c-mux-gpio.h
+GENERIC GPIO RESET DRIVER
+M: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+S: Maintained
+F: drivers/reset/reset-gpio.c
+
GENERIC HDLC (WAN) DRIVERS
M: Krzysztof Halasa <khc@pm.waw.pl>
S: Maintained
F: include/linux/string_choices.h
F: include/linux/string_helpers.h
F: lib/string.c
+F: lib/string_kunit.c
F: lib/string_helpers.c
-F: lib/test-string_helpers.c
-F: lib/test_string.c
+F: lib/string_helpers_kunit.c
+F: scripts/coccinelle/api/string_choices.cocci
GENERIC UIO DRIVER FOR PCI DEVICES
M: "Michael S. Tsirkin" <mst@redhat.com>
F: arch/arm64/boot/dts/exynos/google/
F: drivers/clk/samsung/clk-gs101.c
F: include/dt-bindings/clock/google,gs101.h
+K: [gG]oogle.?[tT]ensor
GPD POCKET FAN DRIVER
M: Hans de Goede <hdegoede@redhat.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
F: Documentation/ABI/obsolete/sysfs-gpio
F: Documentation/ABI/testing/gpio-cdev
+F: Documentation/userspace-api/gpio/
F: drivers/gpio/gpiolib-cdev.c
F: include/uapi/linux/gpio.h
F: tools/gpio/
F: drivers/media/usb/hdpvr/
HEWLETT PACKARD ENTERPRISE ILO CHIF DRIVER
-M: Matt Hsiao <matt.hsiao@hpe.com>
+M: Keng-Yu Lin <keng-yu.lin@hpe.com>
S: Supported
F: drivers/misc/hpilo.[ch]
HONEYWELL MPRLS0025PA PRESSURE SENSOR SERIES IIO DRIVER
M: Andreas Klinger <ak@it-klinger.de>
+M: Petre Rodan <petre.rodan@subdimension.ro>
L: linux-iio@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/iio/pressure/honeywell,mprls0025pa.yaml
-F: drivers/iio/pressure/mprls0025pa.c
+F: drivers/iio/pressure/mprls0025pa*
HP BIOSCFG DRIVER
M: Jorge Lopez <jorge.lopez2@hp.com>
W: https://i2c.wiki.kernel.org/
Q: https://patchwork.ozlabs.org/project/linux-i2c/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
-F: Documentation/devicetree/bindings/i2c/i2c.txt
F: Documentation/i2c/
F: drivers/i2c/*
F: include/dt-bindings/i2c/i2c.h
S: Maintained
W: https://i2c.wiki.kernel.org/
Q: https://patchwork.ozlabs.org/project/linux-i2c/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git
F: Documentation/devicetree/bindings/i2c/
F: drivers/i2c/algos/
F: drivers/i2c/busses/
F: include/scsi/viosrp.h
IBM Power Virtual SCSI Device Target Driver
-M: Michael Cyr <mikecyr@linux.ibm.com>
+M: Tyrel Datwyler <tyreld@linux.ibm.com>
L: linux-scsi@vger.kernel.org
L: target-devel@vger.kernel.org
S: Supported
M: Paulo Flabiano Smorigo <pfsmorigo@gmail.com>
L: linux-crypto@vger.kernel.org
S: Supported
-F: drivers/crypto/vmx/Kconfig
-F: drivers/crypto/vmx/Makefile
-F: drivers/crypto/vmx/aes*
-F: drivers/crypto/vmx/ghash*
-F: drivers/crypto/vmx/ppc-xlate.pl
-F: drivers/crypto/vmx/vmx.c
+F: arch/powerpc/crypto/Kconfig
+F: arch/powerpc/crypto/Makefile
+F: arch/powerpc/crypto/aes.c
+F: arch/powerpc/crypto/aes_cbc.c
+F: arch/powerpc/crypto/aes_ctr.c
+F: arch/powerpc/crypto/aes_xts.c
+F: arch/powerpc/crypto/aesp8-ppc.*
+F: arch/powerpc/crypto/ghash.c
+F: arch/powerpc/crypto/ghashp8-ppc.pl
+F: arch/powerpc/crypto/ppc-xlate.pl
+F: arch/powerpc/crypto/vmx.c
IBM ServeRAID RAID DRIVER
S: Orphan
S: Maintained
F: drivers/media/rc/iguanair.c
+IIO BACKEND FRAMEWORK
+M: Nuno Sa <nuno.sa@analog.com>
+R: Olivier Moysan <olivier.moysan@foss.st.com>
+L: linux-iio@vger.kernel.org
+S: Maintained
+F: drivers/iio/industrialio-backend.c
+F: include/linux/iio/backend.h
+
IIO DIGITAL POTENTIOMETER DAC
M: Peter Rosin <peda@axentia.se>
L: linux-iio@vger.kernel.org
S: Maintained
F: drivers/iio/industrialio-gts-helper.c
F: include/linux/iio/iio-gts-helper.h
+F: drivers/iio/test/iio-test-gts.c
IIO MULTIPLEXER
M: Peter Rosin <peda@axentia.se>
IMGTEC POWERVR DRM DRIVER
M: Frank Binns <frank.binns@imgtec.com>
-M: Donald Robson <donald.robson@imgtec.com>
M: Matt Coster <matt.coster@imgtec.com>
S: Supported
T: git git://anongit.freedesktop.org/drm/drm-misc
-F: Documentation/devicetree/bindings/gpu/img,powervr.yaml
+F: Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
+F: Documentation/devicetree/bindings/gpu/img,powervr-sgx.yaml
F: Documentation/gpu/imagination/
F: drivers/gpu/drm/imagination/
F: include/uapi/drm/pvr_drm.h
S: Orphan
F: drivers/video/fbdev/imsttfb.c
-INA209 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
-F: Documentation/hwmon/ina209.rst
-F: drivers/hwmon/ina209.c
-
-INA2XX HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/hwmon/ina2xx.rst
-F: drivers/hwmon/ina2xx.c
-F: include/linux/platform_data/ina2xx.h
-
INDEX OF FURTHER KERNEL DOCUMENTATION
M: Carlos Bilbao <carlos.bilbao@amd.com>
S: Maintained
M: Jani Nikula <jani.nikula@linux.intel.com>
M: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
M: Rodrigo Vivi <rodrigo.vivi@intel.com>
-M: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
+M: Tvrtko Ursulin <tursulin@ursulin.net>
L: intel-gfx@lists.freedesktop.org
S: Supported
W: https://drm.pages.freedesktop.org/intel-docs/
INTEL GVT-g DRIVERS (Intel GPU Virtualization)
M: Zhenyu Wang <zhenyuw@linux.intel.com>
-M: Zhi Wang <zhi.a.wang@intel.com>
+M: Zhi Wang <zhi.wang.linux@gmail.com>
L: intel-gvt-dev@lists.freedesktop.org
L: intel-gfx@lists.freedesktop.org
S: Supported
-W: https://01.org/igvt-g
+W: https://github.com/intel/gvt-linux/wiki
T: git https://github.com/intel/gvt-linux.git
F: drivers/gpu/drm/i915/gvt/
F: drivers/net/wireless/intel/iwlegacy/
INTEL WIRELESS WIFI LINK (iwlwifi)
-M: Gregory Greenman <gregory.greenman@intel.com>
M: Miri Korenblit <miriam.rachel.korenblit@intel.com>
L: linux-wireless@vger.kernel.org
S: Supported
S: Maintained
F: drivers/net/wwan/iosm/
+INTEL(R) FLEXIBLE RETURN AND EVENT DELIVERY
+M: Xin Li <xin@zytor.com>
+M: "H. Peter Anvin" <hpa@zytor.com>
+S: Supported
+F: Documentation/arch/x86/x86_64/fred.rst
+F: arch/x86/entry/entry_64_fred.S
+F: arch/x86/entry/entry_fred.c
+F: arch/x86/include/asm/fred.h
+F: arch/x86/kernel/fred.c
+
INTEL(R) TRACE HUB
M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
S: Supported
F: include/linux/iommu.h
F: include/linux/iova.h
F: include/linux/of_iommu.h
-F: include/uapi/linux/iommu.h
IOMMUFD
M: Jason Gunthorpe <jgg@nvidia.com>
F: arch/x86/include/asm/jailhouse_para.h
F: arch/x86/kernel/jailhouse.c
-JC42.4 TEMPERATURE SENSOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/hwmon/jedec,jc42.yaml
-F: Documentation/hwmon/jc42.rst
-F: drivers/hwmon/jc42.c
-
JFS FILESYSTEM
M: Dave Kleikamp <shaggy@kernel.org>
L: jfs-discussion@lists.sourceforge.net
KERNEL UNIT TESTING FRAMEWORK (KUnit)
M: Brendan Higgins <brendanhiggins@google.com>
M: David Gow <davidgow@google.com>
+R: Rae Moar <rmoar@google.com>
L: linux-kselftest@vger.kernel.org
L: kunit-dev@googlegroups.com
S: Maintained
F: Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml
F: drivers/video/backlight/ktd253-backlight.c
+KTD2801 BACKLIGHT DRIVER
+M: Duje Mihanović <duje.mihanovic@skole.hr>
+S: Maintained
+F: Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml
+F: drivers/video/backlight/ktd2801-backlight.c
+
KTEST
M: Steven Rostedt <rostedt@goodmis.org>
M: John Hawley <warthog9@eaglescrag.net>
F: drivers/scsi/53c700*
LEAKING_ADDRESSES
-M: Tobin C. Harding <me@tobin.cc>
M: Tycho Andersen <tycho@tycho.pizza>
+R: Kees Cook <keescook@chromium.org>
L: linux-hardening@vger.kernel.org
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tobin/leaks.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: scripts/leaking_addresses.pl
LED SUBSYSTEM
F: drivers/*/*pasemi*
F: drivers/char/tpm/tpm_ibmvtpm*
F: drivers/crypto/nx/
-F: drivers/crypto/vmx/
F: drivers/i2c/busses/i2c-opal.c
F: drivers/net/ethernet/ibm/ibmveth.*
F: drivers/net/ethernet/ibm/ibmvnic.*
F: include/linux/livepatch.h
F: kernel/livepatch/
F: kernel/module/livepatch.c
-F: lib/livepatch/
F: samples/livepatch/
F: tools/testing/selftests/livepatch/
F: drivers/hwmon/lm90.c
F: include/dt-bindings/thermal/lm90.h
-LM95234 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/hwmon/lm95234.rst
-F: drivers/hwmon/lm95234.c
-
LME2510 MEDIA DRIVER
M: Malcolm Priestley <tvboxspy@gmail.com>
L: linux-media@vger.kernel.org
F: Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
F: drivers/iio/temperature/ltc2983.c
-LTC4261 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
+LTC4282 HARDWARE MONITOR DRIVER
+M: Nuno Sa <nuno.sa@analog.com>
L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/hwmon/ltc4261.rst
-F: drivers/hwmon/ltc4261.c
+S: Supported
+F: Documentation/devicetree/bindings/hwmon/adi,ltc4282.yaml
+F: Documentation/hwmon/ltc4282.rst
+F: drivers/hwmon/ltc4282.c
LTC4286 HARDWARE MONITOR DRIVER
M: Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
L: linux-man@vger.kernel.org
S: Maintained
W: http://www.kernel.org/doc/man-pages
+T: git git://git.kernel.org/pub/scm/docs/man-pages/man-pages.git
+T: git git://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git
MANAGEMENT COMPONENT TRANSPORT PROTOCOL (MCTP)
M: Jeremy Kerr <jk@codeconstruct.com.au>
S: Supported
F: drivers/net/ethernet/marvell/octeon_ep
+MARVELL OCTEON ENDPOINT VF DRIVER
+M: Veerasenareddy Burru <vburru@marvell.com>
+M: Sathesh Edara <sedara@marvell.com>
+M: Shinas Rasheed <srasheed@marvell.com>
+M: Satananda Burla <sburla@marvell.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/marvell/octeon_ep_vf
+
MARVELL OCTEONTX2 PHYSICAL FUNCTION DRIVER
M: Sunil Goutham <sgoutham@marvell.com>
M: Geetha sowjanya <gakula@marvell.com>
F: Documentation/hwmon/max15301.rst
F: drivers/hwmon/pmbus/max15301.c
-MAX16065 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/hwmon/max16065.rst
-F: drivers/hwmon/max16065.c
-
MAX2175 SDR TUNER DRIVER
M: Ramesh Shanmugasundaram <rashanmu@gmail.com>
L: linux-media@vger.kernel.org
F: drivers/media/i2c/max2175*
F: include/uapi/linux/max2175.h
-MAX31827 TEMPERATURE SWITCH DRIVER
-M: Daniel Matyas <daniel.matyas@analog.com>
-L: linux-hwmon@vger.kernel.org
-S: Supported
-W: https://ez.analog.com/linux-software-drivers
-F: Documentation/devicetree/bindings/hwmon/adi,max31827.yaml
-F: Documentation/hwmon/max31827.rst
-F: drivers/hwmon/max31827.c
-
MAX31335 RTC DRIVER
M: Antoniu Miclaus <antoniu.miclaus@analog.com>
L: linux-rtc@vger.kernel.org
F: Documentation/hwmon/max6650.rst
F: drivers/hwmon/max6650.c
-MAX6697 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/hwmon/max6697.txt
-F: Documentation/hwmon/max6697.rst
-F: drivers/hwmon/max6697.c
-F: include/linux/platform_data/max6697.h
-
MAX9286 QUAD GMSL DESERIALIZER DRIVER
M: Jacopo Mondi <jacopo+renesas@jmondi.org>
M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
F: Documentation/devicetree/bindings/media/renesas,csi2.yaml
F: Documentation/devicetree/bindings/media/renesas,isp.yaml
F: Documentation/devicetree/bindings/media/renesas,vin.yaml
+F: drivers/media/platform/renesas/rcar-csi2.c
F: drivers/media/platform/renesas/rcar-isp.c
F: drivers/media/platform/renesas/rcar-vin/
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/dma/mtk-*
+F: Documentation/devicetree/bindings/dma/mediatek,*
F: drivers/dma/mediatek/
MEDIATEK ETHERNET DRIVER
F: drivers/media/platform/mediatek/vcodec/
F: drivers/media/platform/mediatek/vpu/
+MEDIATEK MIPI-CSI CDPHY DRIVER
+M: Julien Stephan <jstephan@baylibre.com>
+M: Andy Hsieh <andy.hsieh@mediatek.com>
+S: Supported
+F: Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml
+F: drivers/phy/mediatek/phy-mtk-mipi-csi-0-5*
+
MEDIATEK MMC/SD/SDIO DRIVER
M: Chaotian Jing <chaotian.jing@mediatek.com>
S: Maintained
MELLANOX MLX5 VDPA DRIVER
M: Dragos Tatulea <dtatulea@nvidia.com>
-L: virtualization@lists.linux-foundation.org
+L: virtualization@lists.linux.dev
S: Supported
F: drivers/vdpa/mlx5/
M: "Paul E. McKenney" <paulmck@kernel.org>
L: linux-kernel@vger.kernel.org
S: Supported
- F: arch/powerpc/include/asm/membarrier.h
+ F: Documentation/scheduler/membarrier.rst
+ F: arch/*/include/asm/membarrier.h
+ F: arch/*/include/asm/sync_core.h
F: include/uapi/linux/membarrier.h
F: kernel/sched/membarrier.c
T: quilt git://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new
F: include/linux/gfp.h
F: include/linux/gfp_types.h
+F: include/linux/memfd.h
+F: include/linux/memory.h
F: include/linux/memory_hotplug.h
+F: include/linux/memory-tiers.h
+F: include/linux/mempolicy.h
+F: include/linux/mempool.h
+F: include/linux/memremap.h
F: include/linux/mm.h
+F: include/linux/mm_*.h
F: include/linux/mmzone.h
+F: include/linux/mmu_notifier.h
F: include/linux/pagewalk.h
F: include/linux/rmap.h
F: include/trace/events/ksm.h
F: mm/
F: tools/mm/
F: tools/testing/selftests/mm/
+N: include/linux/page[-_]*
+
+MEMORY MAPPING
+M: Andrew Morton <akpm@linux-foundation.org>
+R: Liam R. Howlett <Liam.Howlett@oracle.com>
+R: Vlastimil Babka <vbabka@suse.cz>
+R: Lorenzo Stoakes <lstoakes@gmail.com>
+L: linux-mm@kvack.org
+S: Maintained
+W: http://www.linux-mm.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
+F: mm/mmap.c
MEMORY TECHNOLOGY DEVICES (MTD)
M: Miquel Raynal <miquel.raynal@bootlin.com>
MICROCHIP AT91 DMA DRIVERS
M: Ludovic Desroches <ludovic.desroches@microchip.com>
-M: Tudor Ambarus <tudor.ambarus@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: dmaengine@vger.kernel.org
S: Supported
F: drivers/media/platform/microchip/microchip-csi2dc.c
MICROCHIP ECC DRIVER
-M: Tudor Ambarus <tudor.ambarus@linaro.org>
L: linux-crypto@vger.kernel.org
-S: Maintained
+S: Orphan
F: drivers/crypto/atmel-ecc.*
MICROCHIP EIC DRIVER
M: Claudiu Beznea <claudiu.beznea@tuxon.dev>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
-F: Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt
+F: Documentation/devicetree/bindings/regulator/microchip,mcp16502.yaml
F: drivers/regulator/mcp16502.c
MICROCHIP MCP3564 ADC DRIVER
F: drivers/mmc/host/atmel-mci.c
MICROCHIP NAND DRIVER
-M: Tudor Ambarus <tudor.ambarus@linaro.org>
L: linux-mtd@lists.infradead.org
-S: Supported
+S: Orphan
F: Documentation/devicetree/bindings/mtd/atmel-nand.txt
F: drivers/mtd/nand/raw/atmel/*
F: drivers/nvmem/microchip-otpc.c
F: include/dt-bindings/nvmem/microchip,sama7g5-otpc.h
+MICROCHIP PAC1934 POWER/ENERGY MONITOR DRIVER
+M: Marius Cristea <marius.cristea@microchip.com>
+L: linux-iio@vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
+F: drivers/iio/adc/pac1934.c
+
MICROCHIP PCI1XXXX GP DRIVER
M: Vaibhaav Ram T.L <vaibhaavram.tl@microchip.com>
M: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
F: drivers/platform/surface/surface_dtx.c
F: include/uapi/linux/surface_aggregator/dtx.h
+MICROSOFT SURFACE SENSOR FAN DRIVER
+M: Maximilian Luz <luzmaximilian@gmail.com>
+M: Ivor Wanders <ivor@iwanders.net>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/hwmon/surface_fan.rst
+F: drivers/hwmon/surface_fan.c
+
MICROSOFT SURFACE GPE LID SUPPORT DRIVER
M: Maximilian Luz <luzmaximilian@gmail.com>
L: platform-driver-x86@vger.kernel.org
F: drivers/platform/mips/
F: include/dt-bindings/mips/
+MIPS BAIKAL-T1 PLATFORM
+M: Serge Semin <fancer.lancer@gmail.com>
+L: linux-mips@vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/bus/baikal,bt1-*.yaml
+F: Documentation/devicetree/bindings/clock/baikal,bt1-*.yaml
+F: drivers/bus/bt1-*.c
+F: drivers/clk/baikal-t1/
+F: drivers/memory/bt1-l2-ctl.c
+F: drivers/mtd/maps/physmap-bt1-rom.[ch]
+
MIPS BOSTON DEVELOPMENT BOARD
M: Paul Burton <paulburton@kernel.org>
L: linux-mips@vger.kernel.org
Q: http://patchwork.linuxtv.org/project/linux-media/list/
F: drivers/media/dvb-frontends/mn88473*
+MOBILEYE MIPS SOCS
+M: Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
+M: Gregory CLEMENT <gregory.clement@bootlin.com>
+M: Théo Lebrun <theo.lebrun@bootlin.com>
+L: linux-mips@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/mips/mobileye.yaml
+F: arch/mips/boot/dts/mobileye/
+F: arch/mips/configs/eyeq5_defconfig
+F: arch/mips/mobileye/board-epm5.its.S
+
MODULE SUPPORT
M: Luis Chamberlain <mcgrof@kernel.org>
L: linux-modules@vger.kernel.org
S: Maintained
F: net/ncsi/
-NCT6775 HARDWARE MONITOR DRIVER - CORE & PLATFORM DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/hwmon/nct6775.rst
-F: drivers/hwmon/nct6775-core.c
-F: drivers/hwmon/nct6775-platform.c
-F: drivers/hwmon/nct6775.h
-
NCT6775 HARDWARE MONITOR DRIVER - I2C DRIVER
M: Zev Weiss <zev@bewilderbeest.net>
L: linux-hwmon@vger.kernel.org
M: Jakub Kicinski <kuba@kernel.org>
S: Maintained
F: drivers/net/netdevsim/*
+F: tools/testing/selftests/drivers/net/netdevsim/*
NETEM NETWORK EMULATOR
M: Stephen Hemminger <stephen@networkplumber.org>
NETFILTER
M: Pablo Neira Ayuso <pablo@netfilter.org>
M: Jozsef Kadlecsik <kadlec@netfilter.org>
-M: Florian Westphal <fw@strlen.de>
L: netfilter-devel@vger.kernel.org
L: coreteam@netfilter.org
S: Maintained
F: drivers/connector/
F: drivers/net/
F: include/dt-bindings/net/
+F: include/linux/cn_proc.h
F: include/linux/etherdevice.h
F: include/linux/fcdevice.h
F: include/linux/fddidevice.h
F: include/linux/if_*
F: include/linux/inetdevice.h
F: include/linux/netdevice.h
+F: include/uapi/linux/cn_proc.h
F: include/uapi/linux/if_*
F: include/uapi/linux/netdevice.h
X: drivers/net/wireless/
F: Documentation/networking/net_cachelines/
F: Documentation/process/maintainer-netdev.rst
F: Documentation/userspace-api/netlink/
+F: include/linux/framer/framer-provider.h
+F: include/linux/framer/framer.h
F: include/linux/in.h
F: include/linux/indirect_call_wrapper.h
F: include/linux/net.h
NETWORKING [MPTCP]
M: Matthieu Baerts <matttbe@kernel.org>
M: Mat Martineau <martineau@kernel.org>
-R: Geliang Tang <geliang.tang@linux.dev>
+R: Geliang Tang <geliang@kernel.org>
L: netdev@vger.kernel.org
L: mptcp@lists.linux.dev
S: Maintained
L: linux-nilfs@vger.kernel.org
S: Supported
W: https://nilfs.sourceforge.io/
-W: https://nilfs.osdn.jp/
T: git https://github.com/konis/nilfs2.git
F: Documentation/filesystems/nilfs2.rst
F: fs/nilfs2/
T: git https://github.com/davejiang/linux.git
F: drivers/ntb/hw/intel/
-NTFS FILESYSTEM
-M: Anton Altaparmakov <anton@tuxera.com>
-R: Namjae Jeon <linkinjeon@kernel.org>
-L: linux-ntfs-dev@lists.sourceforge.net
-S: Supported
-W: http://www.tuxera.com/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs.git
-F: Documentation/filesystems/ntfs.rst
-F: fs/ntfs/
-
NTFS3 FILESYSTEM
M: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
L: ntfs3@lists.linux.dev
NXP i.MX 7D/6SX/6UL/93 AND VF610 ADC DRIVER
M: Haibo Chen <haibo.chen@nxp.com>
L: linux-iio@vger.kernel.org
-L: linux-imx@nxp.com
+L: imx@lists.linux.dev
S: Maintained
F: Documentation/devicetree/bindings/iio/adc/fsl,imx7d-adc.yaml
F: Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
NXP i.MX 8QXP ADC DRIVER
M: Cai Huoqing <cai.huoqing@linux.dev>
M: Haibo Chen <haibo.chen@nxp.com>
-L: linux-imx@nxp.com
+L: imx@lists.linux.dev
L: linux-iio@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml
NXP i.MX 8QXP/8QM JPEG V4L2 DRIVER
M: Mirela Rabulea <mirela.rabulea@nxp.com>
-R: NXP Linux Team <linux-imx@nxp.com>
+L: imx@lists.linux.dev
L: linux-media@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
M: Abel Vesa <abelvesa@kernel.org>
R: Peng Fan <peng.fan@nxp.com>
L: linux-clk@vger.kernel.org
-L: linux-imx@nxp.com
+L: imx@lists.linux.dev
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux.git clk/imx
F: Documentation/devicetree/bindings/clock/imx*
F: Documentation/hwmon/nzxt-kraken2.rst
F: drivers/hwmon/nzxt-kraken2.c
+NZXT-KRAKEN3 HARDWARE MONITORING DRIVER
+M: Jonas Malaco <jonas@protocubo.io>
+M: Aleksa Savic <savicaleksa83@gmail.com>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/hwmon/nzxt-kraken3.rst
+F: drivers/hwmon/nzxt-kraken3.c
+
NZXT-SMART2 HARDWARE MONITORING DRIVER
M: Aleksandr Mezin <mezin.alexander@gmail.com>
L: linux-hwmon@vger.kernel.org
F: drivers/infiniband/ulp/opa_vnic
OPEN FIRMWARE AND FLATTENED DEVICE TREE
-M: Rob Herring <robh+dt@kernel.org>
-M: Frank Rowand <frowand.list@gmail.com>
+M: Rob Herring <robh@kernel.org>
+M: Saravana Kannan <saravanak@google.com>
L: devicetree@vger.kernel.org
S: Maintained
W: http://www.devicetree.org/
K: of_overlay_remove
OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
-M: Rob Herring <robh+dt@kernel.org>
+M: Rob Herring <robh@kernel.org>
M: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
M: Conor Dooley <conor+dt@kernel.org>
L: devicetree@vger.kernel.org
M: Amir Goldstein <amir73il@gmail.com>
L: linux-unionfs@vger.kernel.org
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs.git
F: Documentation/filesystems/overlayfs.rst
F: fs/overlayfs/
PCI DRIVER FOR FU740
M: Paul Walmsley <paul.walmsley@sifive.com>
M: Greentime Hu <greentime.hu@sifive.com>
+M: Samuel Holland <samuel.holland@sifive.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml
PCI DRIVER FOR TI DRA7XX/J721E
M: Vignesh Raghavendra <vigneshr@ti.com>
+R: Siddharth Vadapalli <s-vadapalli@ti.com>
L: linux-omap@vger.kernel.org
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
F: drivers/pci/controller/pcie-xilinx-cpm.c
PCI ENDPOINT SUBSYSTEM
-M: Lorenzo Pieralisi <lpieralisi@kernel.org>
+M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
M: Krzysztof Wilczyński <kw@linux.com>
-R: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
R: Kishon Vijay Abraham I <kishon@kernel.org>
L: linux-pci@vger.kernel.org
S: Supported
F: include/linux/of_pci.h
F: include/linux/pci*
F: include/uapi/linux/pci*
-F: lib/pci*
PCIE DRIVER FOR AMAZON ANNAPURNA LABS
M: Jonathan Chocron <jonnyc@amazon.com>
R: Will Deacon <will@kernel.org>
R: James Clark <james.clark@arm.com>
R: Mike Leach <mike.leach@linaro.org>
-R: Leo Yan <leo.yan@linaro.org>
+R: Leo Yan <leo.yan@linux.dev>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: tools/build/feature/test-libopencsd.c
M: Jacky Bai <ping.bai@nxp.com>
R: Pengutronix Kernel Team <kernel@pengutronix.de>
L: linux-gpio@vger.kernel.org
+L: NXP S32 Linux Team <s32@nxp.com>
S: Maintained
F: Documentation/devicetree/bindings/pinctrl/fsl,*
+F: Documentation/devicetree/bindings/pinctrl/nxp,s32*
F: drivers/pinctrl/freescale/
+F: drivers/pinctrl/nxp/
PIN CONTROLLER - INTEL
M: Mika Westerberg <mika.westerberg@linux.intel.com>
F: drivers/gpio/gpio-sama5d2-piobu.c
F: drivers/pinctrl/pinctrl-at91*
-PIN CONTROLLER - NXP S32
-M: Chester Lin <clin@suse.com>
-R: NXP S32 Linux Team <s32@nxp.com>
-L: linux-gpio@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/pinctrl/nxp,s32*
-F: drivers/pinctrl/nxp/
-
PIN CONTROLLER - QUALCOMM
M: Bjorn Andersson <andersson@kernel.org>
L: linux-arm-msm@vger.kernel.org
F: drivers/pinctrl/renesas/
PIN CONTROLLER - SAMSUNG
-M: Tomasz Figa <tomasz.figa@gmail.com>
M: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
R: Alim Akhtar <alim.akhtar@samsung.com>
F: Documentation/hwmon/pm6764tr.rst
F: drivers/hwmon/pmbus/pm6764tr.c
-PMBUS HARDWARE MONITORING DRIVERS
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-W: http://hwmon.wiki.kernel.org/
-W: http://www.roeck-us.net/linux/drivers/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
-F: Documentation/devicetree/bindings/hwmon/ltc2978.txt
-F: Documentation/devicetree/bindings/hwmon/max31785.txt
-F: Documentation/hwmon/adm1275.rst
-F: Documentation/hwmon/ibm-cffps.rst
-F: Documentation/hwmon/ir35221.rst
-F: Documentation/hwmon/lm25066.rst
-F: Documentation/hwmon/ltc2978.rst
-F: Documentation/hwmon/ltc3815.rst
-F: Documentation/hwmon/max16064.rst
-F: Documentation/hwmon/max20751.rst
-F: Documentation/hwmon/max31785.rst
-F: Documentation/hwmon/max34440.rst
-F: Documentation/hwmon/max8688.rst
-F: Documentation/hwmon/pmbus-core.rst
-F: Documentation/hwmon/pmbus.rst
-F: Documentation/hwmon/tps40422.rst
-F: Documentation/hwmon/ucd9000.rst
-F: Documentation/hwmon/ucd9200.rst
-F: Documentation/hwmon/zl6100.rst
-F: drivers/hwmon/pmbus/
-F: include/linux/pmbus.h
-
PMC SIERRA MaxRAID DRIVER
L: linux-scsi@vger.kernel.org
S: Orphan
F: fs/timerfd.c
F: include/linux/time_namespace.h
F: include/linux/timer*
+F: include/trace/events/timer*
F: kernel/time/*timer*
F: kernel/time/namespace.c
F: drivers/power/supply/
F: include/linux/power/
F: include/linux/power_supply.h
+F: tools/testing/selftests/power_supply/
POWERNV OPERATOR PANEL LCD DISPLAY DRIVER
M: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
L: linux-kernel@vger.kernel.org
L: linux-fsdevel@vger.kernel.org
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git sysctl-next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl.git sysctl-next
F: fs/proc/proc_sysctl.c
F: include/linux/sysctl.h
F: kernel/sysctl-test.c
F: include/linux/pstore*
K: \b(pstore|ramoops)
+PT5161L HARDWARE MONITOR DRIVER
+M: Cosmo Chou <cosmo.chou@quantatw.com>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/hwmon/pt5161l.rst
+F: drivers/hwmon/pt5161l.c
+
PTP HARDWARE CLOCK SUPPORT
M: Richard Cochran <richardcochran@gmail.com>
L: netdev@vger.kernel.org
QUALCOMM ATH12K WIRELESS DRIVER
M: Kalle Valo <kvalo@kernel.org>
-M: Jeff Johnson <quic_jjohnson@quicinc.com>
+M: Jeff Johnson <jjohnson@kernel.org>
L: ath12k@lists.infradead.org
S: Supported
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath12k
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
F: drivers/net/wireless/ath/ath12k/
+N: ath12k
QUALCOMM ATHEROS ATH10K WIRELESS DRIVER
M: Kalle Valo <kvalo@kernel.org>
-M: Jeff Johnson <quic_jjohnson@quicinc.com>
+M: Jeff Johnson <jjohnson@kernel.org>
L: ath10k@lists.infradead.org
S: Supported
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath10k
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
-F: Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml
F: drivers/net/wireless/ath/ath10k/
+N: ath10k
QUALCOMM ATHEROS ATH11K WIRELESS DRIVER
M: Kalle Valo <kvalo@kernel.org>
-M: Jeff Johnson <quic_jjohnson@quicinc.com>
+M: Jeff Johnson <jjohnson@kernel.org>
L: ath11k@lists.infradead.org
S: Supported
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath11k
B: https://wireless.wiki.kernel.org/en/users/Drivers/ath11k/bugreport
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
-F: Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
F: drivers/net/wireless/ath/ath11k/
+N: ath11k
QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
M: Toke Høiland-Jørgensen <toke@toke.dk>
F: Documentation/devicetree/bindings/net/wireless/qca,ath9k.yaml
F: drivers/net/wireless/ath/ath9k/
+QUALCOMM ATHEROS QCA7K ETHERNET DRIVER
+M: Stefan Wahren <wahrenst@gmx.net>
+L: netdev@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/net/qca,qca7000.txt
+F: drivers/net/ethernet/qualcomm/qca*
+
QUALCOMM BAM-DMUX WWAN NETWORK DRIVER
M: Stephan Gerhold <stephan@gerhold.net>
L: netdev@vger.kernel.org
QUALCOMM ETHQOS ETHERNET DRIVER
M: Vinod Koul <vkoul@kernel.org>
-R: Bhupesh Sharma <bhupesh.sharma@linaro.org>
L: netdev@vger.kernel.org
L: linux-arm-msm@vger.kernel.org
S: Maintained
M: Borislav Petkov <bp@alien8.de>
L: linux-edac@vger.kernel.org
S: Maintained
-F: Documentation/admin-guide/ras.rst
+F: Documentation/admin-guide/RAS
F: drivers/ras/
F: include/linux/ras.h
F: include/ras/ras_event.h
+RAS FRU MEMORY POISON MANAGER (FMPM)
+M: Yazen Ghannam <Yazen.Ghannam@amd.com>
+L: linux-edac@vger.kernel.org
+S: Maintained
+F: drivers/ras/amd/fmpm.c
+
RC-CORE / LIRC FRAMEWORK
M: Sean Young <sean@mess.org>
L: linux-media@vger.kernel.org
F: drivers/infiniband/sw/rdmavt
RDS - RELIABLE DATAGRAM SOCKETS
-M: Santosh Shilimkar <santosh.shilimkar@oracle.com>
+M: Allison Henderson <allison.henderson@oracle.com>
L: netdev@vger.kernel.org
L: linux-rdma@vger.kernel.org
L: rds-devel@oss.oracle.com (moderated for non-subscribers)
F: arch/riscv/boot/dts/
X: arch/riscv/boot/dts/allwinner/
X: arch/riscv/boot/dts/renesas/
+X: arch/riscv/boot/dts/sophgo/
RISC-V PMU DRIVERS
M: Atish Patra <atishp@atishpatra.org>
F: rust/
F: samples/rust/
F: scripts/*rust*
+F: tools/testing/selftests/rust/
K: \b(?i:rust)\b
RXRPC SOCKETS (AF_RXRPC)
SAMSUNG SOC CLOCK DRIVERS
M: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
-M: Tomasz Figa <tomasz.figa@gmail.com>
M: Chanwoo Choi <cw00.choi@samsung.com>
R: Alim Akhtar <alim.akhtar@samsung.com>
L: linux-samsung-soc@vger.kernel.org
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) NXP i.MX DRIVER
M: Haibo Chen <haibo.chen@nxp.com>
-L: linux-imx@nxp.com
+L: imx@lists.linux.dev
L: linux-mmc@vger.kernel.org
S: Maintained
F: drivers/mmc/host/sdhci-esdhc-imx.c
F: drivers/watchdog/simatic-ipc-wdt.c
SIFIVE DRIVERS
-M: Palmer Dabbelt <palmer@dabbelt.com>
M: Paul Walmsley <paul.walmsley@sifive.com>
+M: Samuel Holland <samuel.holland@sifive.com>
L: linux-riscv@lists.infradead.org
S: Supported
+F: drivers/dma/sf-pdma/
N: sifive
+K: fu[57]40
K: [^@]sifive
-SIFIVE CACHE DRIVER
-M: Conor Dooley <conor@kernel.org>
-L: linux-riscv@lists.infradead.org
-S: Maintained
-F: Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
-F: drivers/cache/sifive_ccache.c
-
-SIFIVE FU540 SYSTEM-ON-CHIP
-M: Paul Walmsley <paul.walmsley@sifive.com>
-M: Palmer Dabbelt <palmer@dabbelt.com>
-L: linux-riscv@lists.infradead.org
-S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/pjw/sifive.git
-N: fu540
-K: fu540
-
-SIFIVE PDMA DRIVER
-M: Green Wan <green.wan@sifive.com>
-S: Maintained
-F: Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
-F: drivers/dma/sf-pdma/
-
-
SILEAD TOUCHSCREEN DRIVER
M: Hans de Goede <hdegoede@redhat.com>
L: linux-input@vger.kernel.org
F: drivers/net/ethernet/socionext/sni_ave.c
SOCIONEXT (SNI) NETSEC NETWORK DRIVER
-M: Jassi Brar <jaswinder.singh@linaro.org>
M: Ilias Apalodimas <ilias.apalodimas@linaro.org>
+M: Masahisa Kojima <kojima.masahisa@socionext.com>
L: netdev@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/socionext,synquacer-netsec.yaml
F: drivers/platform/x86/sony-laptop.c
F: include/linux/sony-laptop.h
-SOPHGO DEVICETREES
-M: Chao Wei <chao.wei@sophgo.com>
+SOPHGO DEVICETREES and DRIVERS
M: Chen Wang <unicorn_wang@outlook.com>
+M: Inochi Amaoto <inochiama@outlook.com>
+T: git https://github.com/sophgo/linux.git
S: Maintained
-F: arch/riscv/boot/dts/sophgo/
-F: Documentation/devicetree/bindings/riscv/sophgo.yaml
+N: sophgo
+K: sophgo
SOUND
M: Jaroslav Kysela <perex@perex.cz>
F: sound/core/compress_offload.c
F: sound/soc/soc-compress.c
+SOUND - CORE KUNIT TEST
+M: Ivan Orlov <ivan.orlov0322@gmail.com>
+L: linux-sound@vger.kernel.org
+S: Supported
+F: sound/core/sound_kunit.c
+
SOUND - DMAENGINE HELPERS
M: Lars-Peter Clausen <lars@metafoo.de>
S: Supported
SPARC + UltraSPARC (sparc/sparc64)
M: "David S. Miller" <davem@davemloft.net>
+M: Andreas Larsson <andreas@gaisler.com>
L: sparclinux@vger.kernel.org
S: Maintained
Q: http://patchwork.ozlabs.org/project/sparclinux/list/
T: git https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git/
F: Documentation/devicetree/bindings/soc/starfive/
+STARFIVE STARLINK PMU DRIVER
+M: Ji Sheng Teoh <jisheng.teoh@starfivetech.com>
+S: Maintained
+F: Documentation/admin-guide/perf/starfive_starlink_pmu.rst
+F: Documentation/devicetree/bindings/perf/starfive,jh8100-starlink-pmu.yaml
+F: drivers/perf/starfive_starlink_pmu.c
+
STARFIVE TRNG DRIVER
M: Jia Jie Ho <jiajie.ho@starfivetech.com>
S: Supported
F: drivers/phy/starfive/phy-jh7110-pcie.c
F: drivers/phy/starfive/phy-jh7110-usb.c
+STARFIVE JH8100 EXTERNAL INTERRUPT CONTROLLER DRIVER
+M: Changhuang Liang <changhuang.liang@starfivetech.com>
+S: Supported
+F: Documentation/devicetree/bindings/interrupt-controller/starfive,jh8100-intc.yaml
+F: drivers/irqchip/irq-starfive-jh8100-intc.c
+
STATIC BRANCH/CALL
M: Peter Zijlstra <peterz@infradead.org>
M: Josh Poimboeuf <jpoimboe@kernel.org>
F: drivers/cpufreq/sc[mp]i-cpufreq.c
F: drivers/firmware/arm_scmi/
F: drivers/firmware/arm_scpi.c
+F: drivers/hwmon/scmi-hwmon.c
F: drivers/pmdomain/arm/
F: drivers/powercap/arm_scmi_powercap.c
F: drivers/regulator/scmi-regulator.c
TECHNICAL ADVISORY BOARD PROCESS DOCS
M: "Theodore Ts'o" <tytso@mit.edu>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-L: tech-board-discuss@lists.linux-foundation.org
+L: tech-board-discuss@lists.linux.dev
S: Maintained
F: Documentation/process/contribution-maturity-model.rst
F: Documentation/process/researcher-guidelines.rst
TI DAVINCI SERIES CLOCK DRIVER
M: David Lechner <david@lechnology.com>
-R: Sekhar Nori <nsekhar@ti.com>
S: Maintained
F: Documentation/devicetree/bindings/clock/ti/davinci/
F: drivers/clk/davinci/
F: drivers/media/i2c/ds90*
F: include/media/i2c/ds90*
+TI HDC302X HUMIDITY DRIVER
+M: Javier Carrasco <javier.carrasco.cruz@gmail.com>
+M: Li peiyu <579lpy@gmail.com>
+L: linux-iio@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/iio/humidity/ti,hdc3020.yaml
+F: drivers/iio/humidity/hdc3020.c
+
TI ICSSG ETHERNET DRIVER (ICSSG)
R: MD Danish Anwar <danishanwar@ti.com>
R: Roger Quadros <rogerq@kernel.org>
F: drivers/mmc/host/tmio_mmc*
F: include/linux/mfd/tmio.h
-TMP401 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
-F: Documentation/hwmon/tmp401.rst
-F: drivers/hwmon/tmp401.c
-
-TMP464 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/hwmon/ti,tmp464.yaml
-F: Documentation/hwmon/tmp464.rst
-F: drivers/hwmon/tmp464.c
-
TMP513 HARDWARE MONITOR DRIVER
M: Eric Tremblay <etremblay@distech-controls.com>
L: linux-hwmon@vger.kernel.org
UBI FILE SYSTEM (UBIFS)
M: Richard Weinberger <richard@nod.at>
+R: Zhihao Cheng <chengzhihao1@huawei.com>
L: linux-mtd@lists.infradead.org
S: Supported
W: http://www.linux-mtd.infradead.org/doc/ubifs.html
F: drivers/block/ublk_drv.c
F: include/uapi/linux/ublk_cmd.h
+UBSAN
+M: Kees Cook <keescook@chromium.org>
+R: Marco Elver <elver@google.com>
+R: Andrey Konovalov <andreyknvl@gmail.com>
+R: Andrey Ryabinin <ryabinin.a.a@gmail.com>
+L: kasan-dev@googlegroups.com
+L: linux-hardening@vger.kernel.org
+S: Supported
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
+F: Documentation/dev-tools/ubsan.rst
+F: include/linux/ubsan.h
+F: lib/Kconfig.ubsan
+F: lib/test_ubsan.c
+F: lib/ubsan.c
+F: scripts/Makefile.ubsan
+K: \bARCH_HAS_UBSAN\b
+
UCLINUX (M68KNOMMU AND COLDFIRE)
M: Greg Ungerer <gerg@linux-m68k.org>
L: linux-m68k@lists.linux-m68k.org
UNSORTED BLOCK IMAGES (UBI)
M: Richard Weinberger <richard@nod.at>
+R: Zhihao Cheng <chengzhihao1@huawei.com>
L: linux-mtd@lists.infradead.org
S: Supported
W: http://www.linux-mtd.infradead.org/
F: drivers/usb/typec/mux/pi3usb30532.c
USB TYPEC PORT CONTROLLER DRIVERS
-M: Guenter Roeck <linux@roeck-us.net>
L: linux-usb@vger.kernel.org
-S: Maintained
+S: Orphan
F: drivers/usb/typec/tcpm/
USB UHCI DRIVER
S: Maintained
F: drivers/vfio/pci/mlx5/
-VFIO VIRTIO PCI DRIVER
-M: Yishai Hadas <yishaih@nvidia.com>
+VFIO NVIDIA GRACE GPU DRIVER
+M: Ankit Agrawal <ankita@nvidia.com>
L: kvm@vger.kernel.org
-L: virtualization@lists.linux-foundation.org
-S: Maintained
-F: drivers/vfio/pci/virtio
+S: Supported
+F: drivers/vfio/pci/nvgrace-gpu/
VFIO PCI DEVICE SPECIFIC DRIVERS
R: Jason Gunthorpe <jgg@nvidia.com>
S: Maintained
F: drivers/vfio/platform/
+VFIO VIRTIO PCI DRIVER
+M: Yishai Hadas <yishaih@nvidia.com>
+L: kvm@vger.kernel.org
+L: virtualization@lists.linux.dev
+S: Maintained
+F: drivers/vfio/pci/virtio
+
VGA_SWITCHEROO
R: Lukas Wunner <lukas@wunner.de>
S: Maintained
F: drivers/staging/vme_user/
VMWARE BALLOON DRIVER
-M: Nadav Amit <namit@vmware.com>
-R: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
+M: Jerrin Shaji George <jerrin.shaji-george@broadcom.com>
+R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
L: linux-kernel@vger.kernel.org
S: Supported
F: drivers/misc/vmw_balloon.c
XILINX CAN DRIVER
M: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
-R: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
L: linux-can@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/can/xilinx,can.yaml
F: drivers/net/can/xilinx_can.c
XILINX EVENT MANAGEMENT DRIVER
-M: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
+M: Michal Simek <michal.simek@amd.com>
S: Maintained
F: drivers/soc/xilinx/xlnx_event_manager.c
F: include/linux/firmware/xlnx-event-manager.h
M: Derek Kiernan <derek.kiernan@amd.com>
M: Dragan Cvetic <dragan.cvetic@amd.com>
S: Maintained
-F: Documentation/devicetree/bindings/misc/xlnx,sd-fec.txt
+F: Documentation/devicetree/bindings/misc/xlnx,sd-fec.yaml
F: Documentation/misc-devices/xilinx_sdfec.rst
F: drivers/misc/Kconfig
F: drivers/misc/Makefile
S: Maintained
F: drivers/crypto/xilinx/zynqmp-sha.c
+XILINX ZYNQMP NVMEM DRIVER
+M: Praveen Teja Kundanala <praveen.teja.kundanala@amd.com>
+M: Kalyani Akula <kalyani.akula@amd.com>
+R: Michal Simek <michal.simek@amd.com>
+S: Maintained
+F: Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml
+F: drivers/nvmem/zynqmp_nvmem.c
+
XILLYBUS DRIVER
M: Eli Billauer <eli.billauer@gmail.com>
L: linux-kernel@vger.kernel.org
F: Documentation/filesystems/zonefs.rst
F: fs/zonefs/
-ZPOOL COMPRESSED PAGE STORAGE API
-M: Dan Streetman <ddstreet@ieee.org>
-L: linux-mm@kvack.org
-S: Maintained
-F: include/linux/zpool.h
-F: mm/zpool.c
-
ZR36067 VIDEO FOR LINUX DRIVER
M: Corentin Labbe <clabbe@baylibre.com>
L: mjpeg-users@lists.sourceforge.net
M: Johannes Weiner <hannes@cmpxchg.org>
M: Yosry Ahmed <yosryahmed@google.com>
M: Nhat Pham <nphamcs@gmail.com>
+R: Chengming Zhou <chengming.zhou@linux.dev>
L: linux-mm@kvack.org
S: Maintained
F: Documentation/admin-guide/mm/zswap.rst
+F: include/linux/zpool.h
F: include/linux/zswap.h
+F: mm/zpool.c
F: mm/zswap.c
+F: tools/testing/selftests/cgroup/test_zswap.c
THE REST
M: Linus Torvalds <torvalds@linux-foundation.org>
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_GIGANTIC_PAGE
select ARCH_HAS_KCOV
+ select ARCH_HAS_MEMBARRIER_CALLBACKS
+ select ARCH_HAS_MEMBARRIER_SYNC_CORE
select ARCH_HAS_MMIOWB
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PMEM_API
+ select ARCH_HAS_PREPARE_SYNC_CORE_CMD
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SET_DIRECT_MAP if MMU
select ARCH_HAS_SET_MEMORY if MMU
select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
select ARCH_HAS_STRICT_MODULE_RWX if MMU && !XIP_KERNEL
+ select ARCH_HAS_SYNC_CORE_BEFORE_USERMODE
select ARCH_HAS_SYSCALL_WRAPPER
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
- select ARCH_HAS_UBSAN_SANITIZE_ALL
+ select ARCH_HAS_UBSAN
select ARCH_HAS_VDSO_DATA
select ARCH_KEEP_MEMBLOCK if ACPI
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_SUPPORTS_CFI_CLANG
select ARCH_SUPPORTS_DEBUG_PAGEALLOC if MMU
select ARCH_SUPPORTS_HUGETLBFS if MMU
+ # LLD >= 14: https://github.com/llvm/llvm-project/issues/50505
+ select ARCH_SUPPORTS_LTO_CLANG if LLD_VERSION >= 140000
+ select ARCH_SUPPORTS_LTO_CLANG_THIN if LLD_VERSION >= 140000
select ARCH_SUPPORTS_PAGE_TABLE_CHECK if MMU
select ARCH_SUPPORTS_PER_VMA_LOCK if MMU
select ARCH_SUPPORTS_SHADOW_CALL_STACK if HAVE_SHADOW_CALL_STACK
select HAVE_ARCH_KGDB_QXFER_PKT
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
+ select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
select HAVE_ARCH_TRACEHOOK
select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !PREEMPTION
select HAVE_EBPF_JIT if MMU
+ select HAVE_FAST_GUP if MMU
select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_FUNCTION_ERROR_INJECTION
select HAVE_GCC_PLUGINS
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if !LD_IS_LLD
select HAVE_MOVE_PMD
select HAVE_MOVE_PUD
+ select HAVE_PAGE_SIZE_4KB
select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select IRQ_FORCED_THREADING
select KASAN_VMALLOC if KASAN
select LOCK_MM_AND_FIND_VMA
+ select MMU_GATHER_RCU_TABLE_FREE if SMP && MMU
select MODULES_USE_ELF_RELA if MODULES
select MODULE_SECTIONS if MODULES
select OF
config CLANG_SUPPORTS_DYNAMIC_FTRACE
def_bool CC_IS_CLANG
- # https://github.com/llvm/llvm-project/commit/6ab8927931851bb42b2c93a00801dc499d7d9b1e
- depends on CLANG_VERSION >= 130000
# https://github.com/ClangBuiltLinux/linux/issues/1817
depends on AS_IS_GNU || (AS_IS_LLVM && (LD_IS_LLD || LD_VERSION >= 23600))
def_bool $(as-instr,.insn r 51$(comma) 0$(comma) 0$(comma) t0$(comma) t0$(comma) zero)
config AS_HAS_OPTION_ARCH
- # https://reviews.llvm.org/D123515
+ # https://github.com/llvm/llvm-project/commit/9e8ed3403c191ab9c4903e8eeb8f732ff8a43cb4
def_bool y
depends on $(as-instr, .option arch$(comma) +m)
depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
depends on AS_HAS_OPTION_ARCH
+ # This symbol indicates that the toolchain supports all v1.0 vector crypto
+ # extensions, including Zvk*, Zvbb, and Zvbc. LLVM added all of these at once.
+ # binutils added all except Zvkb, then added Zvkb. So we just check for Zvkb.
+ config TOOLCHAIN_HAS_VECTOR_CRYPTO
+ def_bool $(as-instr, .option arch$(comma) +v$(comma) +zvkb)
+ depends on AS_HAS_OPTION_ARCH
+
config RISCV_ISA_ZBB
bool "Zbb extension support for bit manipulation instructions"
depends on TOOLCHAIN_HAS_ZBB
affects irq stack size, which is equal to thread stack size.
config RISCV_MISALIGNED
- bool "Support misaligned load/store traps for kernel and userspace"
+ bool
select SYSCTL_ARCH_UNALIGN_ALLOW
- default y
help
- Say Y here if you want the kernel to embed support for misaligned
- load/store for both kernel and userspace. When disable, misaligned
- accesses will generate SIGBUS in userspace and panic in kernel.
+ Embed support for emulating misaligned loads and stores.
+
+ choice
+ prompt "Unaligned Accesses Support"
+ default RISCV_PROBE_UNALIGNED_ACCESS
+ help
+ This determines the level of support for unaligned accesses. This
+ information is used by the kernel to perform optimizations. It is also
+ exposed to user space via the hwprobe syscall. The hardware will be
+ probed at boot by default.
+
+ config RISCV_PROBE_UNALIGNED_ACCESS
+ bool "Probe for hardware unaligned access support"
+ select RISCV_MISALIGNED
+ help
+ During boot, the kernel will run a series of tests to determine the
+ speed of unaligned accesses. This probing will dynamically determine
+ the speed of unaligned accesses on the underlying system. If unaligned
+ memory accesses trap into the kernel as they are not supported by the
+ system, the kernel will emulate the unaligned accesses to preserve the
+ UABI.
+
+ config RISCV_EMULATED_UNALIGNED_ACCESS
+ bool "Emulate unaligned access where system support is missing"
+ select RISCV_MISALIGNED
+ help
+ If unaligned memory accesses trap into the kernel as they are not
+ supported by the system, the kernel will emulate the unaligned
+ accesses to preserve the UABI. When the underlying system does support
+ unaligned accesses, the unaligned accesses are assumed to be slow.
+
+ config RISCV_SLOW_UNALIGNED_ACCESS
+ bool "Assume the system supports slow unaligned memory accesses"
+ depends on NONPORTABLE
+ help
+ Assume that the system supports slow unaligned memory accesses. The
+ kernel and userspace programs may not be able to run at all on systems
+ that do not support unaligned memory accesses.
config RISCV_EFFICIENT_UNALIGNED_ACCESS
- bool "Assume the CPU supports fast unaligned memory accesses"
+ bool "Assume the system supports fast unaligned memory accesses"
depends on NONPORTABLE
select DCACHE_WORD_ACCESS if MMU
select HAVE_EFFICIENT_UNALIGNED_ACCESS
help
- Say Y here if you want the kernel to assume that the CPU supports
- efficient unaligned memory accesses. When enabled, this option
- improves the performance of the kernel on such CPUs. However, the
- kernel will run much more slowly, or will not be able to run at all,
- on CPUs that do not support efficient unaligned memory accesses.
+ Assume that the system supports fast unaligned memory accesses. When
+ enabled, this option improves the performance of the kernel on such
+ systems. However, the kernel and userspace programs will run much more
+ slowly, or will not be able to run at all, on systems that do not
+ support efficient unaligned memory accesses.
- If unsure what to do here, say N.
+ endchoice
endmenu # "Platform type"
def_bool y
config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION
- def_bool CRASH_CORE
+ def_bool CRASH_RESERVE
config COMPAT
bool "Kernel support for 32-bit U-mode"
config BUILTIN_DTB
bool "Built-in device tree"
depends on OF && NONPORTABLE
- default y if XIP_KERNEL
+ help
+ Build a device tree into the Linux image.
+ This option should be selected if no bootloader is being used.
+ If unsure, say N.
+
+
+config BUILTIN_DTB_SOURCE
+ string "Built-in device tree source"
+ depends on BUILTIN_DTB
+ help
+ DTS file path (without suffix, relative to arch/riscv/boot/dts)
+ for the DTS file that will be used to produce the DTB linked into the
+ kernel.
endmenu # "Boot options"
source "kernel/power/Kconfig"
- # Hibernation is only possible on systems where the SBI implementation has
- # marked its reserved memory as not accessible from, or does not run
- # from the same memory as, Linux
config ARCH_HIBERNATION_POSSIBLE
- def_bool NONPORTABLE
+ def_bool y
config ARCH_HIBERNATION_HEADER
def_bool HIBERNATION
riscv,isa-base = "rv64i";
riscv,isa-extensions = "i", "m", "a", "f", "d", "c",
"zicntr", "zicsr", "zifencei",
- "zihpm";
+ "zihpm", "xandespmu";
mmu-type = "riscv,sv39";
i-cache-size = <0x8000>;
i-cache-line-size = <0x40>;
cpu0_intc: interrupt-controller {
#interrupt-cells = <1>;
- compatible = "riscv,cpu-intc";
+ compatible = "andestech,cpu-intc", "riscv,cpu-intc";
interrupt-controller;
};
};
};
};
+&pinctrl {
+ gpio-ranges = <&pinctrl 0 0 232>;
+};
+
&soc {
dma-noncoherent;
interrupt-parent = <&plic>;
#include <asm-generic/bitops/fls.h>
#else
+ #define __HAVE_ARCH___FFS
+ #define __HAVE_ARCH___FLS
+ #define __HAVE_ARCH_FFS
+ #define __HAVE_ARCH_FLS
+
+ #include <asm-generic/bitops/__ffs.h>
+ #include <asm-generic/bitops/__fls.h>
+ #include <asm-generic/bitops/ffs.h>
+ #include <asm-generic/bitops/fls.h>
+
#include <asm/alternative-macros.h>
#include <asm/hwcap.h>
static __always_inline unsigned long variable__ffs(unsigned long word)
{
- int num;
-
- asm_volatile_goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
: : : : legacy);
return word;
legacy:
- num = 0;
- #if BITS_PER_LONG == 64
- if ((word & 0xffffffff) == 0) {
- num += 32;
- word >>= 32;
- }
- #endif
- if ((word & 0xffff) == 0) {
- num += 16;
- word >>= 16;
- }
- if ((word & 0xff) == 0) {
- num += 8;
- word >>= 8;
- }
- if ((word & 0xf) == 0) {
- num += 4;
- word >>= 4;
- }
- if ((word & 0x3) == 0) {
- num += 2;
- word >>= 2;
- }
- if ((word & 0x1) == 0)
- num += 1;
- return num;
+ return generic___ffs(word);
}
/**
static __always_inline unsigned long variable__fls(unsigned long word)
{
- int num;
-
- asm_volatile_goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
: : : : legacy);
return BITS_PER_LONG - 1 - word;
legacy:
- num = BITS_PER_LONG - 1;
- #if BITS_PER_LONG == 64
- if (!(word & (~0ul << 32))) {
- num -= 32;
- word <<= 32;
- }
- #endif
- if (!(word & (~0ul << (BITS_PER_LONG - 16)))) {
- num -= 16;
- word <<= 16;
- }
- if (!(word & (~0ul << (BITS_PER_LONG - 8)))) {
- num -= 8;
- word <<= 8;
- }
- if (!(word & (~0ul << (BITS_PER_LONG - 4)))) {
- num -= 4;
- word <<= 4;
- }
- if (!(word & (~0ul << (BITS_PER_LONG - 2)))) {
- num -= 2;
- word <<= 2;
- }
- if (!(word & (~0ul << (BITS_PER_LONG - 1))))
- num -= 1;
- return num;
+ return generic___fls(word);
}
/**
static __always_inline int variable_ffs(int x)
{
- int r;
-
- if (!x)
- return 0;
-
- asm_volatile_goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
: : : : legacy);
+ if (!x)
+ return 0;
+
asm volatile (".option push\n"
".option arch,+zbb\n"
CTZW "%0, %1\n"
".option pop\n"
- : "=r" (r) : "r" (x) :);
+ : "=r" (x) : "r" (x) :);
- return r + 1;
+ return x + 1;
legacy:
- r = 1;
- if (!(x & 0xffff)) {
- x >>= 16;
- r += 16;
- }
- if (!(x & 0xff)) {
- x >>= 8;
- r += 8;
- }
- if (!(x & 0xf)) {
- x >>= 4;
- r += 4;
- }
- if (!(x & 3)) {
- x >>= 2;
- r += 2;
- }
- if (!(x & 1)) {
- x >>= 1;
- r += 1;
- }
- return r;
+ return generic_ffs(x);
}
/**
static __always_inline int variable_fls(unsigned int x)
{
- int r;
-
- if (!x)
- return 0;
-
- asm_volatile_goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[legacy]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
: : : : legacy);
+ if (!x)
+ return 0;
+
asm volatile (".option push\n"
".option arch,+zbb\n"
CLZW "%0, %1\n"
".option pop\n"
- : "=r" (r) : "r" (x) :);
+ : "=r" (x) : "r" (x) :);
- return 32 - r;
+ return 32 - x;
legacy:
- r = 32;
- if (!(x & 0xffff0000u)) {
- x <<= 16;
- r -= 16;
- }
- if (!(x & 0xff000000u)) {
- x <<= 8;
- r -= 8;
- }
- if (!(x & 0xf0000000u)) {
- x <<= 4;
- r -= 4;
- }
- if (!(x & 0xc0000000u)) {
- x <<= 2;
- r -= 2;
- }
- if (!(x & 0x80000000u)) {
- x <<= 1;
- r -= 1;
- }
- return r;
+ return generic_fls(x);
}
/**
/* SPDX-License-Identifier: GPL-2.0-only */
/*
- * Copyright 2022-2023 Rivos, Inc
+ * Copyright 2022-2024 Rivos, Inc
*/
#ifndef _ASM_CPUFEATURE_H
DECLARE_PER_CPU(struct riscv_cpuinfo, riscv_cpuinfo);
- DECLARE_PER_CPU(long, misaligned_access_speed);
-
/* Per-cpu ISA extensions. */
extern struct riscv_isainfo hart_isa[NR_CPUS];
void riscv_user_isa_enable(void);
- #ifdef CONFIG_RISCV_MISALIGNED
- bool unaligned_ctl_available(void);
- bool check_unaligned_access_emulated(int cpu);
+ #if defined(CONFIG_RISCV_MISALIGNED)
+ bool check_unaligned_access_emulated_all_cpus(void);
void unaligned_emulation_finish(void);
+ bool unaligned_ctl_available(void);
+ DECLARE_PER_CPU(long, misaligned_access_speed);
#else
static inline bool unaligned_ctl_available(void)
{
return false;
}
+ #endif
+
+ #if defined(CONFIG_RISCV_PROBE_UNALIGNED_ACCESS)
+ DECLARE_STATIC_KEY_FALSE(fast_unaligned_access_speed_key);
- static inline bool check_unaligned_access_emulated(int cpu)
+ static __always_inline bool has_fast_unaligned_accesses(void)
{
- return false;
+ return static_branch_likely(&fast_unaligned_access_speed_key);
+ }
+ #else
+ static __always_inline bool has_fast_unaligned_accesses(void)
+ {
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS))
+ return true;
+ else
+ return false;
}
-
- static inline void unaligned_emulation_finish(void) {}
#endif
unsigned long riscv_get_elf_hwcap(void);
"ext must be < RISCV_ISA_EXT_MAX");
if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE)) {
- asm_volatile_goto(
+ asm goto(
ALTERNATIVE("j %l[l_no]", "nop", 0, %[ext], 1)
:
: [ext] "i" (ext)
"ext must be < RISCV_ISA_EXT_MAX");
if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE)) {
- asm_volatile_goto(
+ asm goto(
ALTERNATIVE("nop", "j %l[l_yes]", 0, %[ext], 1)
:
: [ext] "i" (ext)
return __riscv_isa_extension_available(hart_isa[cpu].isa, ext);
}
- DECLARE_STATIC_KEY_FALSE(fast_misaligned_access_speed_key);
-
#endif
#define RISCV_ISA_EXT_ZFA 71
#define RISCV_ISA_EXT_ZTSO 72
#define RISCV_ISA_EXT_ZACAS 73
+ #define RISCV_ISA_EXT_XANDESPMU 74
+#define RISCV_ISA_EXT_XLINUXENVCFG 127
+
#define RISCV_ISA_EXT_MAX 128
#define RISCV_ISA_EXT_INVALID U32_MAX
* Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel
* is configured with CONFIG_SPARSEMEM_VMEMMAP enabled.
*/
-#define vmemmap ((struct page *)VMEMMAP_START)
+#define vmemmap ((struct page *)VMEMMAP_START - (phys_ram_base >> PAGE_SHIFT))
#define PCI_IO_SIZE SZ_16M
#define PCI_IO_END VMEMMAP_START
#define VA_USER_SV48 (UL(1) << (VA_BITS_SV48 - 1))
#define VA_USER_SV57 (UL(1) << (VA_BITS_SV57 - 1))
- #ifdef CONFIG_COMPAT
#define MMAP_VA_BITS_64 ((VA_BITS >= VA_BITS_SV48) ? VA_BITS_SV48 : VA_BITS)
#define MMAP_MIN_VA_BITS_64 (VA_BITS_SV39)
#define MMAP_VA_BITS (is_compat_task() ? VA_BITS_SV32 : MMAP_VA_BITS_64)
#define MMAP_MIN_VA_BITS (is_compat_task() ? VA_BITS_SV32 : MMAP_MIN_VA_BITS_64)
- #else
- #define MMAP_VA_BITS ((VA_BITS >= VA_BITS_SV48) ? VA_BITS_SV48 : VA_BITS)
- #define MMAP_MIN_VA_BITS (VA_BITS_SV39)
- #endif /* CONFIG_COMPAT */
-
#else
#include <asm/pgtable-32.h>
#endif /* CONFIG_64BIT */
}
#define pmd_leaf pmd_leaf
-static inline int pmd_leaf(pmd_t pmd)
+static inline bool pmd_leaf(pmd_t pmd)
{
return pmd_present(pmd) && (pmd_val(pmd) & _PAGE_LEAF);
}
return pte;
}
+ #ifdef CONFIG_RISCV_ISA_SVNAPOT
#define pte_leaf_size(pte) (pte_napot(pte) ? \
napot_cont_size(napot_cont_order(pte)) :\
PAGE_SIZE)
+ #endif
#ifdef CONFIG_NUMA_BALANCING
/*
WRITE_ONCE(*ptep, pteval);
}
- void flush_icache_pte(pte_t pte);
+ void flush_icache_pte(struct mm_struct *mm, pte_t pte);
- static inline void __set_pte_at(pte_t *ptep, pte_t pteval)
+ static inline void __set_pte_at(struct mm_struct *mm, pte_t *ptep, pte_t pteval)
{
if (pte_present(pteval) && pte_exec(pteval))
- flush_icache_pte(pteval);
+ flush_icache_pte(mm, pteval);
set_pte(ptep, pteval);
}
+#define PFN_PTE_SHIFT _PAGE_PFN_SHIFT
+
static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval, unsigned int nr)
{
page_table_check_ptes_set(mm, ptep, pteval, nr);
for (;;) {
- __set_pte_at(ptep, pteval);
+ __set_pte_at(mm, ptep, pteval);
if (--nr == 0)
break;
ptep++;
static inline void pte_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- __set_pte_at(ptep, __pte(0));
+ __set_pte_at(mm, ptep, __pte(0));
}
#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS /* defined in mm/pgtable.c */
return pte_write(pmd_pte(pmd));
}
+ #define pud_write pud_write
+ static inline int pud_write(pud_t pud)
+ {
+ return pte_write(pud_pte(pud));
+ }
+
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
pmd_t *pmdp, pmd_t pmd)
{
page_table_check_pmd_set(mm, pmdp, pmd);
- return __set_pte_at((pte_t *)pmdp, pmd_pte(pmd));
+ return __set_pte_at(mm, (pte_t *)pmdp, pmd_pte(pmd));
}
static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
pud_t *pudp, pud_t pud)
{
page_table_check_pud_set(mm, pudp, pud);
- return __set_pte_at((pte_t *)pudp, pud_pte(pud));
+ return __set_pte_at(mm, (pte_t *)pudp, pud_pte(pud));
}
#ifdef CONFIG_PAGE_TABLE_CHECK
#define TASK_SIZE_MIN (PGDIR_SIZE_L3 * PTRS_PER_PGD / 2)
#ifdef CONFIG_COMPAT
- #define TASK_SIZE_32 (_AC(0x80000000, UL))
- #define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
+ #define TASK_SIZE_32 (_AC(0x80000000, UL) - PAGE_SIZE)
+ #define TASK_SIZE (is_compat_task() ? \
TASK_SIZE_32 : TASK_SIZE_64)
#else
#define TASK_SIZE TASK_SIZE_64
struct pt_regs regs;
/* Saved and restored by high-level functions */
unsigned long scratch;
+ unsigned long envcfg;
unsigned long tvec;
unsigned long ie;
#ifdef CONFIG_MMU
asmlinkage void hibernate_restore_image(unsigned long resume_satp, unsigned long satp_temp,
unsigned long cpu_resume);
asmlinkage int hibernate_core_restore_code(void);
+ bool riscv_sbi_hsm_is_supported(void);
+ bool riscv_sbi_suspend_state_is_valid(u32 state);
+ int riscv_sbi_hart_suspend(u32 state);
#endif
static void tlb_flush(struct mmu_gather *tlb);
+ #ifdef CONFIG_MMU
+ #include <linux/swap.h>
+
+ /*
+ * While riscv platforms with riscv_ipi_for_rfence as true require an IPI to
+ * perform TLB shootdown, some platforms with riscv_ipi_for_rfence as false use
+ * SBI to perform TLB shootdown. To keep software pagetable walkers safe in this
+ * case we switch to RCU based table free (MMU_GATHER_RCU_TABLE_FREE). See the
+ * comment below 'ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE' in include/asm-generic/tlb.h
+ * for more details.
+ */
+ static inline void __tlb_remove_table(void *table)
+ {
+ free_page_and_swap_cache(table);
+ }
+
+ #endif /* CONFIG_MMU */
+
#define tlb_flush tlb_flush
#include <asm-generic/tlb.h>
static inline void tlb_flush(struct mmu_gather *tlb)
{
#ifdef CONFIG_MMU
- if (tlb->fullmm || tlb->need_flush_all)
+ if (tlb->fullmm || tlb->need_flush_all || tlb->freed_tables)
flush_tlb_mm(tlb->mm);
else
flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end,
CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_patch.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_sbi.o = $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_return_address.o = $(CC_FLAGS_FTRACE)
endif
CFLAGS_syscall_table.o += $(call cc-option,-Wno-override-init,)
CFLAGS_compat_syscall_table.o += $(call cc-option,-Wno-override-init,)
obj-y += head.o
obj-y += soc.o
obj-$(CONFIG_RISCV_ALTERNATIVE) += alternative.o
- obj-y += copy-unaligned.o
obj-y += cpu.o
obj-y += cpufeature.o
obj-y += entry.o
obj-y += process.o
obj-y += ptrace.o
obj-y += reset.o
+obj-y += return_address.o
obj-y += setup.o
obj-y += signal.o
obj-y += syscall_table.o
obj-$(CONFIG_MMU) += vdso.o vdso/
obj-$(CONFIG_RISCV_MISALIGNED) += traps_misaligned.o
+ obj-$(CONFIG_RISCV_MISALIGNED) += unaligned_access_speed.o
+ obj-$(CONFIG_RISCV_PROBE_UNALIGNED_ACCESS) += copy-unaligned.o
+
obj-$(CONFIG_FPU) += fpu.o
obj-$(CONFIG_RISCV_ISA_V) += vector.o
obj-$(CONFIG_RISCV_ISA_V) += kernel_mode_vector.o
obj-$(CONFIG_KEXEC_CORE) += kexec_relocate.o crash_save_regs.o machine_kexec.o
obj-$(CONFIG_KEXEC_FILE) += elf_kexec.o machine_kexec_file.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
-obj-$(CONFIG_CRASH_CORE) += crash_core.o
+obj-$(CONFIG_VMCORE_INFO) += vmcore_info.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
#include <linux/cpu.h>
#include <linux/cpuhotplug.h>
#include <linux/ctype.h>
- #include <linux/jump_label.h>
#include <linux/log2.h>
#include <linux/memory.h>
#include <linux/module.h>
#include <asm/cacheflush.h>
#include <asm/cpufeature.h>
#include <asm/hwcap.h>
- #include <asm/hwprobe.h>
#include <asm/patch.h>
#include <asm/processor.h>
+#include <asm/sbi.h>
#include <asm/vector.h>
- #include "copy-unaligned.h"
-
#define NUM_ALPHA_EXTS ('z' - 'a' + 1)
- #define MISALIGNED_ACCESS_JIFFIES_LG2 1
- #define MISALIGNED_BUFFER_SIZE 0x4000
- #define MISALIGNED_BUFFER_ORDER get_order(MISALIGNED_BUFFER_SIZE)
- #define MISALIGNED_COPY_SIZE ((MISALIGNED_BUFFER_SIZE / 2) - 0x80)
-
unsigned long elf_hwcap __read_mostly;
/* Host ISA bitmap */
/* Per-cpu ISA extensions. */
struct riscv_isainfo hart_isa[NR_CPUS];
- /* Performance information */
- DEFINE_PER_CPU(long, misaligned_access_speed);
-
- static cpumask_t fast_misaligned_access;
-
/**
* riscv_isa_extension_base() - Get base extension word
*
RISCV_ISA_EXT_ZVKB
};
+/*
+ * While the [ms]envcfg CSRs were not defined until version 1.12 of the RISC-V
+ * privileged ISA, the existence of the CSRs is implied by any extension which
+ * specifies [ms]envcfg bit(s). Hence, we define a custom ISA extension for the
+ * existence of the CSR, and treat it as a subset of those other extensions.
+ */
+static const unsigned int riscv_xlinuxenvcfg_exts[] = {
+ RISCV_ISA_EXT_XLINUXENVCFG
+};
+
/*
* The canonical order of ISA extension names in the ISA string is defined in
* chapter 27 of the unprivileged specification.
__RISCV_ISA_EXT_DATA(c, RISCV_ISA_EXT_c),
__RISCV_ISA_EXT_DATA(v, RISCV_ISA_EXT_v),
__RISCV_ISA_EXT_DATA(h, RISCV_ISA_EXT_h),
- __RISCV_ISA_EXT_DATA(zicbom, RISCV_ISA_EXT_ZICBOM),
- __RISCV_ISA_EXT_DATA(zicboz, RISCV_ISA_EXT_ZICBOZ),
+ __RISCV_ISA_EXT_SUPERSET(zicbom, RISCV_ISA_EXT_ZICBOM, riscv_xlinuxenvcfg_exts),
+ __RISCV_ISA_EXT_SUPERSET(zicboz, RISCV_ISA_EXT_ZICBOZ, riscv_xlinuxenvcfg_exts),
__RISCV_ISA_EXT_DATA(zicntr, RISCV_ISA_EXT_ZICNTR),
__RISCV_ISA_EXT_DATA(zicond, RISCV_ISA_EXT_ZICOND),
__RISCV_ISA_EXT_DATA(zicsr, RISCV_ISA_EXT_ZICSR),
__RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL),
__RISCV_ISA_EXT_DATA(svnapot, RISCV_ISA_EXT_SVNAPOT),
__RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT),
+ __RISCV_ISA_EXT_DATA(xandespmu, RISCV_ISA_EXT_XANDESPMU),
};
const size_t riscv_isa_ext_count = ARRAY_SIZE(riscv_isa_ext);
set_bit(RISCV_ISA_EXT_ZIHPM, isainfo->isa);
}
+ /*
+ * "V" in ISA strings is ambiguous in practice: it should mean
+ * just the standard V-1.0 but vendors aren't well behaved.
+ * Many vendors with T-Head CPU cores which implement the 0.7.1
+ * version of the vector specification put "v" into their DTs.
+ * CPU cores with the ratified spec will contain non-zero
+ * marchid.
+ */
+ if (acpi_disabled && riscv_cached_mvendorid(cpu) == THEAD_VENDOR_ID &&
+ riscv_cached_marchid(cpu) == 0x0) {
+ this_hwcap &= ~isa2hwcap[RISCV_ISA_EXT_v];
+ clear_bit(RISCV_ISA_EXT_v, isainfo->isa);
+ }
+
/*
* All "okay" hart should have same isa. Set HWCAP based on
* common capabilities of every "okay" hart, in case they don't
return hwcap;
}
- static int check_unaligned_access(void *param)
- {
- int cpu = smp_processor_id();
- u64 start_cycles, end_cycles;
- u64 word_cycles;
- u64 byte_cycles;
- int ratio;
- unsigned long start_jiffies, now;
- struct page *page = param;
- void *dst;
- void *src;
- long speed = RISCV_HWPROBE_MISALIGNED_SLOW;
-
- if (check_unaligned_access_emulated(cpu))
- return 0;
-
- /* Make an unaligned destination buffer. */
- dst = (void *)((unsigned long)page_address(page) | 0x1);
- /* Unalign src as well, but differently (off by 1 + 2 = 3). */
- src = dst + (MISALIGNED_BUFFER_SIZE / 2);
- src += 2;
- word_cycles = -1ULL;
- /* Do a warmup. */
- __riscv_copy_words_unaligned(dst, src, MISALIGNED_COPY_SIZE);
- preempt_disable();
- start_jiffies = jiffies;
- while ((now = jiffies) == start_jiffies)
- cpu_relax();
-
- /*
- * For a fixed amount of time, repeatedly try the function, and take
- * the best time in cycles as the measurement.
- */
- while (time_before(jiffies, now + (1 << MISALIGNED_ACCESS_JIFFIES_LG2))) {
- start_cycles = get_cycles64();
- /* Ensure the CSR read can't reorder WRT to the copy. */
- mb();
- __riscv_copy_words_unaligned(dst, src, MISALIGNED_COPY_SIZE);
- /* Ensure the copy ends before the end time is snapped. */
- mb();
- end_cycles = get_cycles64();
- if ((end_cycles - start_cycles) < word_cycles)
- word_cycles = end_cycles - start_cycles;
- }
-
- byte_cycles = -1ULL;
- __riscv_copy_bytes_unaligned(dst, src, MISALIGNED_COPY_SIZE);
- start_jiffies = jiffies;
- while ((now = jiffies) == start_jiffies)
- cpu_relax();
-
- while (time_before(jiffies, now + (1 << MISALIGNED_ACCESS_JIFFIES_LG2))) {
- start_cycles = get_cycles64();
- mb();
- __riscv_copy_bytes_unaligned(dst, src, MISALIGNED_COPY_SIZE);
- mb();
- end_cycles = get_cycles64();
- if ((end_cycles - start_cycles) < byte_cycles)
- byte_cycles = end_cycles - start_cycles;
- }
-
- preempt_enable();
-
- /* Don't divide by zero. */
- if (!word_cycles || !byte_cycles) {
- pr_warn("cpu%d: rdtime lacks granularity needed to measure unaligned access speed\n",
- cpu);
-
- return 0;
- }
-
- if (word_cycles < byte_cycles)
- speed = RISCV_HWPROBE_MISALIGNED_FAST;
-
- ratio = div_u64((byte_cycles * 100), word_cycles);
- pr_info("cpu%d: Ratio of byte access time to unaligned word access is %d.%02d, unaligned accesses are %s\n",
- cpu,
- ratio / 100,
- ratio % 100,
- (speed == RISCV_HWPROBE_MISALIGNED_FAST) ? "fast" : "slow");
-
- per_cpu(misaligned_access_speed, cpu) = speed;
-
- /*
- * Set the value of fast_misaligned_access of a CPU. These operations
- * are atomic to avoid race conditions.
- */
- if (speed == RISCV_HWPROBE_MISALIGNED_FAST)
- cpumask_set_cpu(cpu, &fast_misaligned_access);
- else
- cpumask_clear_cpu(cpu, &fast_misaligned_access);
-
- return 0;
- }
-
- static void check_unaligned_access_nonboot_cpu(void *param)
- {
- unsigned int cpu = smp_processor_id();
- struct page **pages = param;
-
- if (smp_processor_id() != 0)
- check_unaligned_access(pages[cpu]);
- }
-
- DEFINE_STATIC_KEY_FALSE(fast_misaligned_access_speed_key);
-
- static void modify_unaligned_access_branches(cpumask_t *mask, int weight)
- {
- if (cpumask_weight(mask) == weight)
- static_branch_enable_cpuslocked(&fast_misaligned_access_speed_key);
- else
- static_branch_disable_cpuslocked(&fast_misaligned_access_speed_key);
- }
-
- static void set_unaligned_access_static_branches_except_cpu(int cpu)
- {
- /*
- * Same as set_unaligned_access_static_branches, except excludes the
- * given CPU from the result. When a CPU is hotplugged into an offline
- * state, this function is called before the CPU is set to offline in
- * the cpumask, and thus the CPU needs to be explicitly excluded.
- */
-
- cpumask_t fast_except_me;
-
- cpumask_and(&fast_except_me, &fast_misaligned_access, cpu_online_mask);
- cpumask_clear_cpu(cpu, &fast_except_me);
-
- modify_unaligned_access_branches(&fast_except_me, num_online_cpus() - 1);
- }
-
- static void set_unaligned_access_static_branches(void)
- {
- /*
- * This will be called after check_unaligned_access_all_cpus so the
- * result of unaligned access speed for all CPUs will be available.
- *
- * To avoid the number of online cpus changing between reading
- * cpu_online_mask and calling num_online_cpus, cpus_read_lock must be
- * held before calling this function.
- */
-
- cpumask_t fast_and_online;
-
- cpumask_and(&fast_and_online, &fast_misaligned_access, cpu_online_mask);
-
- modify_unaligned_access_branches(&fast_and_online, num_online_cpus());
- }
-
- static int lock_and_set_unaligned_access_static_branch(void)
- {
- cpus_read_lock();
- set_unaligned_access_static_branches();
- cpus_read_unlock();
-
- return 0;
- }
-
- arch_initcall_sync(lock_and_set_unaligned_access_static_branch);
-
- static int riscv_online_cpu(unsigned int cpu)
- {
- static struct page *buf;
-
- /* We are already set since the last check */
- if (per_cpu(misaligned_access_speed, cpu) != RISCV_HWPROBE_MISALIGNED_UNKNOWN)
- goto exit;
-
- buf = alloc_pages(GFP_KERNEL, MISALIGNED_BUFFER_ORDER);
- if (!buf) {
- pr_warn("Allocation failure, not measuring misaligned performance\n");
- return -ENOMEM;
- }
-
- check_unaligned_access(buf);
- __free_pages(buf, MISALIGNED_BUFFER_ORDER);
-
- exit:
- set_unaligned_access_static_branches();
-
- return 0;
- }
-
- static int riscv_offline_cpu(unsigned int cpu)
- {
- set_unaligned_access_static_branches_except_cpu(cpu);
-
- return 0;
- }
-
- /* Measure unaligned access on all CPUs present at boot in parallel. */
- static int check_unaligned_access_all_cpus(void)
- {
- unsigned int cpu;
- unsigned int cpu_count = num_possible_cpus();
- struct page **bufs = kzalloc(cpu_count * sizeof(struct page *),
- GFP_KERNEL);
-
- if (!bufs) {
- pr_warn("Allocation failure, not measuring misaligned performance\n");
- return 0;
- }
-
- /*
- * Allocate separate buffers for each CPU so there's no fighting over
- * cache lines.
- */
- for_each_cpu(cpu, cpu_online_mask) {
- bufs[cpu] = alloc_pages(GFP_KERNEL, MISALIGNED_BUFFER_ORDER);
- if (!bufs[cpu]) {
- pr_warn("Allocation failure, not measuring misaligned performance\n");
- goto out;
- }
- }
-
- /* Check everybody except 0, who stays behind to tend jiffies. */
- on_each_cpu(check_unaligned_access_nonboot_cpu, bufs, 1);
-
- /* Check core 0. */
- smp_call_on_cpu(0, check_unaligned_access, bufs[0], true);
-
- /*
- * Setup hotplug callbacks for any new CPUs that come online or go
- * offline.
- */
- cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "riscv:online",
- riscv_online_cpu, riscv_offline_cpu);
-
- out:
- unaligned_emulation_finish();
- for_each_cpu(cpu, cpu_online_mask) {
- if (bufs[cpu])
- __free_pages(bufs[cpu], MISALIGNED_BUFFER_ORDER);
- }
-
- kfree(bufs);
- return 0;
- }
-
- arch_initcall(check_unaligned_access_all_cpus);
-
void riscv_user_isa_enable(void)
{
if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_ZICBOZ))
- csr_set(CSR_SENVCFG, ENVCFG_CBZE);
+ csr_set(CSR_ENVCFG, ENVCFG_CBZE);
}
#ifdef CONFIG_RISCV_ALTERNATIVE
#include <asm/cpufeature.h>
#include <asm/cpu_ops.h>
- #include <asm/cpufeature.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
#include <asm/numa.h>
static DECLARE_COMPLETION(cpu_running);
-void __init smp_prepare_boot_cpu(void)
-{
-}
-
void __init smp_prepare_cpus(unsigned int max_cpus)
{
int cpuid;
void suspend_save_csrs(struct suspend_context *context)
{
context->scratch = csr_read(CSR_SCRATCH);
+ if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_XLINUXENVCFG))
+ context->envcfg = csr_read(CSR_ENVCFG);
context->tvec = csr_read(CSR_TVEC);
context->ie = csr_read(CSR_IE);
void suspend_restore_csrs(struct suspend_context *context)
{
csr_write(CSR_SCRATCH, context->scratch);
+ if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_XLINUXENVCFG))
+ csr_write(CSR_ENVCFG, context->envcfg);
csr_write(CSR_TVEC, context->tvec);
csr_write(CSR_IE, context->ie);
}
arch_initcall(sbi_system_suspend_init);
+
+ static int sbi_suspend_finisher(unsigned long suspend_type,
+ unsigned long resume_addr,
+ unsigned long opaque)
+ {
+ struct sbiret ret;
+
+ ret = sbi_ecall(SBI_EXT_HSM, SBI_EXT_HSM_HART_SUSPEND,
+ suspend_type, resume_addr, opaque, 0, 0, 0);
+
+ return (ret.error) ? sbi_err_map_linux_errno(ret.error) : 0;
+ }
+
+ int riscv_sbi_hart_suspend(u32 state)
+ {
+ if (state & SBI_HSM_SUSP_NON_RET_BIT)
+ return cpu_suspend(state, sbi_suspend_finisher);
+ else
+ return sbi_suspend_finisher(state, 0, 0);
+ }
+
+ bool riscv_sbi_suspend_state_is_valid(u32 state)
+ {
+ if (state > SBI_HSM_SUSPEND_RET_DEFAULT &&
+ state < SBI_HSM_SUSPEND_RET_PLATFORM)
+ return false;
+
+ if (state > SBI_HSM_SUSPEND_NON_RET_DEFAULT &&
+ state < SBI_HSM_SUSPEND_NON_RET_PLATFORM)
+ return false;
+
+ return true;
+ }
+
+ bool riscv_sbi_hsm_is_supported(void)
+ {
+ /*
+ * The SBI HSM suspend function is only available when:
+ * 1) SBI version is 0.3 or higher
+ * 2) SBI HSM extension is available
+ */
+ if (sbi_spec_version < sbi_mk_version(0, 3) ||
+ !sbi_probe_extension(SBI_EXT_HSM)) {
+ pr_info("HSM suspend not available\n");
+ return false;
+ }
+
+ return true;
+ }
#endif /* CONFIG_RISCV_SBI */
* Checksum library
*
* Influenced by arch/arm64/lib/csum.c
- * Copyright (C) 2023 Rivos Inc.
+ * Copyright (C) 2023-2024 Rivos Inc.
*/
#include <linux/bitops.h>
#include <linux/compiler.h>
* support, so nop when Zbb is available and jump when Zbb is
* not available.
*/
- asm_volatile_goto(ALTERNATIVE("j %l[no_zbb]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[no_zbb]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
:
:
* support, so nop when Zbb is available and jump when Zbb is
* not available.
*/
- asm_volatile_goto(ALTERNATIVE("j %l[no_zbb]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[no_zbb]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
:
:
: no_zbb);
#ifdef CONFIG_32BIT
- asm_volatile_goto(".option push \n\
+ asm_goto_output(".option push \n\
.option arch,+zbb \n\
rori %[fold_temp], %[csum], 16 \n\
andi %[offset], %[offset], 1 \n\
return (unsigned short)csum;
#else /* !CONFIG_32BIT */
- asm_volatile_goto(".option push \n\
+ asm_goto_output(".option push \n\
.option arch,+zbb \n\
rori %[fold_temp], %[csum], 32 \n\
add %[csum], %[fold_temp], %[csum] \n\
* support, so nop when Zbb is available and jump when Zbb is
* not available.
*/
- asm_volatile_goto(ALTERNATIVE("j %l[no_zbb]", "nop", 0,
+ asm goto(ALTERNATIVE("j %l[no_zbb]", "nop", 0,
RISCV_ISA_EXT_ZBB, 1)
:
:
* branches. The largest chunk of overlap was delegated into the
* do_csum_common function.
*/
- if (static_branch_likely(&fast_misaligned_access_speed_key))
- return do_csum_no_alignment(buff, len);
-
- if (((unsigned long)buff & OFFSET_MASK) == 0)
+ if (has_fast_unaligned_accesses() || (((unsigned long)buff & OFFSET_MASK) == 0))
return do_csum_no_alignment(buff, len);
return do_csum_with_alignment(buff, len);
#include <asm/io.h>
#include <asm/numa.h>
#include <asm/pgtable.h>
-#include <asm/ptdump.h>
#include <asm/sections.h>
#include <asm/soc.h>
#include <asm/tlbflush.h>
if (IS_ENABLED(CONFIG_64BIT))
set_kernel_memory(lm_alias(__start_rodata), lm_alias(_data),
set_memory_ro);
-
- debug_checkwx();
}
#else
static __init pgprot_t pgprot_from_va(uintptr_t va)
}
early_param("no5lvl", print_no5lvl);
+ static void __init set_mmap_rnd_bits_max(void)
+ {
+ mmap_rnd_bits_max = MMAP_VA_BITS - PAGE_SHIFT - 3;
+ }
+
/*
* There is a simple way to determine if 4-level is supported by the
* underlying hardware: establish 1:1 mapping in 4-level page table mode
#if defined(CONFIG_64BIT) && !defined(CONFIG_XIP_KERNEL)
set_satp_mode(dtb_pa);
+ set_mmap_rnd_bits_max();
#endif
/*
bool high = false;
int ret;
- if (!IS_ENABLED(CONFIG_KEXEC_CORE))
+ if (!IS_ENABLED(CONFIG_CRASH_RESERVE))
return;
ret = parse_crashkernel(cmdline, memblock_phys_mem_size(),
early_memtest(min_low_pfn << PAGE_SHIFT, max_low_pfn << PAGE_SHIFT);
arch_numa_init();
sparse_init();
+#ifdef CONFIG_SPARSEMEM_VMEMMAP
+ /* The entire VMEMMAP region has been populated. Flush TLB for this region */
+ local_flush_tlb_kernel_range(VMEMMAP_START, VMEMMAP_END);
+#endif
zone_sizes_init();
arch_reserve_crashkernel();
memblock_dump_all();
A non-physical non-deterministic ("true") RNG (e.g., an entropy source
compliant with NIST SP800-90B) intended to provide a seed to a
- deterministic RNG (e.g. per NIST SP800-90C).
+ deterministic RNG (e.g., per NIST SP800-90C).
This RNG does not perform any cryptographic whitening of the generated
+ random numbers.
- See https://www.chronox.de/jent.html
+ See https://www.chronox.de/jent/
if CRYPTO_JITTERENTROPY
if CRYPTO_FIPS && EXPERT
if PPC
source "arch/powerpc/crypto/Kconfig"
endif
+ if RISCV
+ source "arch/riscv/crypto/Kconfig"
+ endif
if S390
source "arch/s390/crypto/Kconfig"
endif
config ACPI_PROCESSOR
tristate "Processor"
- depends on X86 || ARM64 || LOONGARCH
+ depends on X86 || ARM64 || LOONGARCH || RISCV
select ACPI_PROCESSOR_IDLE
select ACPI_CPU_FREQ_PSS if X86 || LOONGARCH
select THERMAL
which is used to report some hardware errors notified via
SCI, mainly the corrected errors.
-config ACPI_CUSTOM_METHOD
- tristate "Allow ACPI methods to be inserted/replaced at run time"
- depends on DEBUG_FS
- help
- This debug facility allows ACPI AML methods to be inserted and/or
- replaced without rebooting the system. For details refer to:
- Documentation/firmware-guide/acpi/method-customizing.rst.
-
- NOTE: This option is security sensitive, because it allows arbitrary
- kernel memory to be written to by root (uid=0) users, allowing them
- to bypass certain security measures (e.g. if root is not allowed to
- load additional kernel modules after boot, this feature may be used
- to override that restriction).
-
config ACPI_BGRT
bool "Boottime Graphics Resource Table support"
depends on EFI && (X86 || ARM64)
config ACPI_REDUCED_HARDWARE_ONLY
bool "Hardware-reduced ACPI support only" if EXPERT
- def_bool n
help
This config item changes the way the ACPI code is built. When this
option is selected, the kernel will use a specialized version of
# ARM CPU Frequency scaling drivers
#
- config ACPI_CPPC_CPUFREQ
- tristate "CPUFreq driver based on the ACPI CPPC spec"
- depends on ACPI_PROCESSOR
- select ACPI_CPPC_LIB
- help
- This adds a CPUFreq driver which uses CPPC methods
- as described in the ACPIv5.1 spec. CPPC stands for
- Collaborative Processor Performance Controls. It
- is based on an abstract continuous scale of CPU
- performance values which allows the remote power
- processor to flexibly optimize for power and
- performance. CPPC relies on power management firmware
- support for its operation.
-
- If in doubt, say N.
-
- config ACPI_CPPC_CPUFREQ_FIE
- bool "Frequency Invariance support for CPPC cpufreq driver"
- depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
- default y
- help
- This extends frequency invariance support in the CPPC cpufreq driver,
- by using CPPC delivered and reference performance counters.
-
- If in doubt, say N.
-
config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
tristate "Allwinner nvmem based SUN50I CPUFreq driver"
depends on ARCH_SUNXI
config ARM_QCOM_CPUFREQ_HW
tristate "QCOM CPUFreq HW driver"
depends on ARCH_QCOM || COMPILE_TEST
+ depends on COMMON_CLK
help
Support for the CPUFreq HW driver.
Some QCOM chipsets have a HW engine to offload the steps
full perf feature support i.e. counter overflow, privilege mode
filtering, counter configuration.
+config STARFIVE_STARLINK_PMU
+ depends on ARCH_STARFIVE || COMPILE_TEST
+ depends on 64BIT
+ bool "StarFive StarLink PMU"
+ help
+ Provide support for StarLink Performance Monitor Unit.
+ StarLink Performance Monitor Unit integrates one or more cores with
+ an L3 memory system. The L3 cache events are added into perf event
+ subsystem, allowing monitoring of various L3 cache perf events.
+
+ config ANDES_CUSTOM_PMU
+ bool "Andes custom PMU support"
+ depends on ARCH_RENESAS && RISCV_ALTERNATIVE && RISCV_PMU_SBI
+ default y
+ help
+ The Andes cores implement the PMU overflow extension very
+ similar to the standard Sscofpmf and Smcntrpmf extension.
+
+ This will patch the overflow and pending CSRs and handle the
+ non-standard behaviour via the regular SBI PMU driver and
+ interface.
+
+ If you don't know what to do here, say "Y".
+
config ARM_PMU_ACPI
depends on ARM_PMU && ACPI
def_bool y
#include <linux/of.h>
#include <linux/cpu_pm.h>
#include <linux/sched/clock.h>
+ #include <linux/soc/andes/irq.h>
#include <asm/errata_list.h>
#include <asm/sbi.h>
#include <asm/cpufeature.h>
+ #define ALT_SBI_PMU_OVERFLOW(__ovl) \
+ asm volatile(ALTERNATIVE_2( \
+ "csrr %0, " __stringify(CSR_SSCOUNTOVF), \
+ "csrr %0, " __stringify(THEAD_C9XX_CSR_SCOUNTEROF), \
+ THEAD_VENDOR_ID, ERRATA_THEAD_PMU, \
+ CONFIG_ERRATA_THEAD_PMU, \
+ "csrr %0, " __stringify(ANDES_CSR_SCOUNTEROF), \
+ 0, RISCV_ISA_EXT_XANDESPMU, \
+ CONFIG_ANDES_CUSTOM_PMU) \
+ : "=r" (__ovl) : \
+ : "memory")
+
+ #define ALT_SBI_PMU_OVF_CLEAR_PENDING(__irq_mask) \
+ asm volatile(ALTERNATIVE( \
+ "csrc " __stringify(CSR_IP) ", %0\n\t", \
+ "csrc " __stringify(ANDES_CSR_SLIP) ", %0\n\t", \
+ 0, RISCV_ISA_EXT_XANDESPMU, \
+ CONFIG_ANDES_CUSTOM_PMU) \
+ : : "r"(__irq_mask) \
+ : "memory")
+
#define SYSCTL_NO_USER_ACCESS 0
#define SYSCTL_USER_ACCESS 1
#define SYSCTL_LEGACY 2
static union sbi_pmu_ctr_info *pmu_ctr_list;
static bool riscv_pmu_use_irq;
static unsigned int riscv_pmu_irq_num;
+ static unsigned int riscv_pmu_irq_mask;
static unsigned int riscv_pmu_irq;
/* Cache the available counters in a bitmask */
if (event->hw.idx != -1)
csr_write(CSR_SCOUNTEREN,
- csr_read(CSR_SCOUNTEREN) | (1 << pmu_sbi_csr_index(event)));
+ csr_read(CSR_SCOUNTEREN) | BIT(pmu_sbi_csr_index(event)));
}
static void pmu_sbi_reset_scounteren(void *arg)
if (event->hw.idx != -1)
csr_write(CSR_SCOUNTEREN,
- csr_read(CSR_SCOUNTEREN) & ~(1 << pmu_sbi_csr_index(event)));
+ csr_read(CSR_SCOUNTEREN) & ~BIT(pmu_sbi_csr_index(event)));
}
static void pmu_sbi_ctr_start(struct perf_event *event, u64 ival)
event = cpu_hw_evt->events[fidx];
if (!event) {
- csr_clear(CSR_SIP, BIT(riscv_pmu_irq_num));
+ ALT_SBI_PMU_OVF_CLEAR_PENDING(riscv_pmu_irq_mask);
return IRQ_NONE;
}
* Overflow interrupt pending bit should only be cleared after stopping
* all the counters to avoid any race condition.
*/
- csr_clear(CSR_SIP, BIT(riscv_pmu_irq_num));
+ ALT_SBI_PMU_OVF_CLEAR_PENDING(riscv_pmu_irq_mask);
/* No overflow bit is set */
if (!overflow)
/* compute hardware counter index */
hidx = info->csr - CSR_CYCLE;
/* check if the corresponding bit is set in sscountovf */
- if (!(overflow & (1 << hidx)))
+ if (!(overflow & BIT(hidx)))
continue;
/*
* Keep a track of overflowed counters so that they can be started
* with updated initial value.
*/
- overflowed_ctrs |= 1 << lidx;
+ overflowed_ctrs |= BIT(lidx);
hw_evt = &event->hw;
riscv_pmu_event_update(event);
perf_sample_data_init(&data, 0, hw_evt->last_period);
if (riscv_pmu_use_irq) {
cpu_hw_evt->irq = riscv_pmu_irq;
- csr_clear(CSR_IP, BIT(riscv_pmu_irq_num));
- csr_set(CSR_IE, BIT(riscv_pmu_irq_num));
+ ALT_SBI_PMU_OVF_CLEAR_PENDING(riscv_pmu_irq_mask);
enable_percpu_irq(riscv_pmu_irq, IRQ_TYPE_NONE);
}
{
if (riscv_pmu_use_irq) {
disable_percpu_irq(riscv_pmu_irq);
- csr_clear(CSR_IE, BIT(riscv_pmu_irq_num));
}
/* Disable all counters access for user mode now */
riscv_cached_mimpid(0) == 0) {
riscv_pmu_irq_num = THEAD_C9XX_RV_IRQ_PMU;
riscv_pmu_use_irq = true;
+ } else if (riscv_isa_extension_available(NULL, XANDESPMU) &&
+ IS_ENABLED(CONFIG_ANDES_CUSTOM_PMU)) {
+ riscv_pmu_irq_num = ANDES_SLI_CAUSE_BASE + ANDES_RV_IRQ_PMOVI;
+ riscv_pmu_use_irq = true;
}
+ riscv_pmu_irq_mask = BIT(riscv_pmu_irq_num % BITS_PER_LONG);
+
if (!riscv_pmu_use_irq)
return -EOPNOTSUPP;
struct anon_vma_chain;
struct user_struct;
struct pt_regs;
+struct folio_batch;
extern int sysctl_page_lock_unfairness;
#ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
extern const int mmap_rnd_bits_min;
- extern const int mmap_rnd_bits_max;
+ extern int mmap_rnd_bits_max __ro_after_init;
extern int mmap_rnd_bits __read_mostly;
#endif
#ifdef CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
/* test whether an address (unsigned long or pointer) is aligned to PAGE_SIZE */
#define PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)(addr), PAGE_SIZE)
-#define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
static inline struct folio *lru_to_folio(struct list_head *head)
{
return list_entry((head)->prev, struct folio, lru);
# define VM_UFFD_MINOR VM_NONE
#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */
+/*
+ * This flag is used to connect VFIO to arch specific KVM code. It
+ * indicates that the memory under this VMA is safe for use with any
+ * non-cachable memory type inside KVM. Some VFIO devices, on some
+ * platforms, are thought to be unsafe and can cause machine crashes
+ * if KVM does not lock down the memory type.
+ */
+#ifdef CONFIG_64BIT
+#define VM_ALLOW_ANY_UNCACHED_BIT 39
+#define VM_ALLOW_ANY_UNCACHED BIT(VM_ALLOW_ANY_UNCACHED_BIT)
+#else
+#define VM_ALLOW_ANY_UNCACHED VM_NONE
+#endif
+
/* Bits set in the VMA until the stack is in its final location */
#define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ | VM_STACK_EARLY)
return NULL;
}
+static inline void vma_assert_locked(struct vm_area_struct *vma)
+{
+ mmap_assert_locked(vma->vm_mm);
+}
+
static inline void release_fault_lock(struct vm_fault *vmf)
{
mmap_read_unlock(vmf->vma->vm_mm);
* How many times the entire folio is mapped as a single unit (eg by a
* PMD or PUD entry). This is probably not what you want, except for
* debugging purposes - it does not include PTE-mapped sub-pages; look
- * at folio_mapcount() or page_mapcount() or total_mapcount() instead.
+ * at folio_mapcount() or page_mapcount() instead.
*/
static inline int folio_entire_mapcount(struct folio *folio)
{
return folio_total_mapcount(folio);
}
-static inline int total_mapcount(struct page *page)
-{
- if (likely(!PageCompound(page)))
- return atomic_read(&page->_mapcount) + 1;
- return folio_total_mapcount(page_folio(page));
-}
-
static inline bool folio_large_is_mapped(struct folio *folio)
{
/*
__folio_put(folio);
}
+void folios_put_refs(struct folio_batch *folios, unsigned int *refs);
+
/*
* union release_pages_arg - an array of pages or folios
*
/**
* folios_put - Decrement the reference count on an array of folios.
* @folios: The folios.
- * @nr: How many folios there are.
*
- * Like folio_put(), but for an array of folios. This is more efficient
- * than writing the loop yourself as it will optimise the locks which
- * need to be taken if the folios are freed.
+ * Like folio_put(), but for a batch of folios. This is more efficient
+ * than writing the loop yourself as it will optimise the locks which need
+ * to be taken if the folios are freed. The folios batch is returned
+ * empty and ready to be reused for another batch; there is no need to
+ * reinitialise it.
*
* Context: May be called in process or interrupt context, but not in NMI
* context. May be called while holding a spinlock.
*/
-static inline void folios_put(struct folio **folios, unsigned int nr)
+static inline void folios_put(struct folio_batch *folios)
{
- release_pages(folios, nr);
+ folios_put_refs(folios, NULL);
}
static inline void put_page(struct page *page)
}
#ifdef NODE_NOT_IN_PAGE_FLAGS
-extern int page_to_nid(const struct page *page);
+int page_to_nid(const struct page *page);
#else
static inline int page_to_nid(const struct page *page)
{
- struct page *p = (struct page *)page;
-
- return (PF_POISONED_CHECK(p)->flags >> NODES_PGSHIFT) & NODES_MASK;
+ return (PF_POISONED_CHECK(page)->flags >> NODES_PGSHIFT) & NODES_MASK;
}
#endif
#endif
}
+/* Only hugetlbfs can allocate folios larger than MAX_ORDER */
+#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
+#define MAX_FOLIO_NR_PAGES (1UL << PUD_ORDER)
+#else
+#define MAX_FOLIO_NR_PAGES MAX_ORDER_NR_PAGES
+#endif
+
/*
* compound_nr() returns the number of pages in this potentially compound
* page. compound_nr() can be called on a tail page, and is defined to
mm_trace_rss_stat(mm, member);
}
-/* Optimized variant when page is already known not to be PageAnon */
-static inline int mm_counter_file(struct page *page)
+/* Optimized variant when folio is already known not to be anon */
+static inline int mm_counter_file(struct folio *folio)
{
- if (PageSwapBacked(page))
+ if (folio_test_swapbacked(folio))
return MM_SHMEMPAGES;
return MM_FILEPAGES;
}
-static inline int mm_counter(struct page *page)
+static inline int mm_counter(struct folio *folio)
{
- if (PageAnon(page))
+ if (folio_test_anon(folio))
return MM_ANONPAGES;
- return mm_counter_file(page);
+ return mm_counter_file(folio);
}
static inline unsigned long get_mm_rss(struct mm_struct *mm)
# Detect buggy gcc and clang, fixed in gcc-11 clang-14.
def_bool $(success,echo 'int foo(int *x) { asm goto (".long (%l[bar]) - .": "+m"(*x) ::: bar); return *x; bar: return 0; }' | $CC -x c - -c -o /dev/null)
+config GCC_ASM_GOTO_OUTPUT_WORKAROUND
+ bool
+ depends on CC_IS_GCC && CC_HAS_ASM_GOTO_OUTPUT
+ # Fixed in GCC 14, 13.3, 12.4 and 11.5
+ # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921
+ default y if GCC_VERSION < 110500
+ default y if GCC_VERSION >= 120000 && GCC_VERSION < 120400
+ default y if GCC_VERSION >= 130000 && GCC_VERSION < 130300
+
config TOOLS_SUPPORT_RELR
def_bool $(success,env "CC=$(CC)" "LD=$(LD)" "NM=$(NM)" "OBJCOPY=$(OBJCOPY)" $(srctree)/scripts/tools-support-relr.sh)
bool
config IRQ_WORK
- bool
+ def_bool y if SMP
config BUILDTIME_TABLE_SORT
bool
default "-Wimplicit-fallthrough=5" if CC_IS_GCC && $(cc-option,-Wimplicit-fallthrough=5)
default "-Wimplicit-fallthrough" if CC_IS_CLANG && $(cc-option,-Wunreachable-code-fallthrough)
-# Currently, disable gcc-11+ array-bounds globally.
+# Currently, disable gcc-10+ array-bounds globally.
# It's still broken in gcc-13, so no upper bound yet.
-config GCC11_NO_ARRAY_BOUNDS
+config GCC10_NO_ARRAY_BOUNDS
def_bool y
config CC_NO_ARRAY_BOUNDS
bool
- default y if CC_IS_GCC && GCC_VERSION >= 110000 && GCC11_NO_ARRAY_BOUNDS
+ default y if CC_IS_GCC && GCC_VERSION >= 100000 && GCC10_NO_ARRAY_BOUNDS
+
+# Currently, disable -Wstringop-overflow for GCC globally.
+config GCC_NO_STRINGOP_OVERFLOW
+ def_bool y
+
+config CC_NO_STRINGOP_OVERFLOW
+ bool
+ default y if CC_IS_GCC && GCC_NO_STRINGOP_OVERFLOW
+
+config CC_STRINGOP_OVERFLOW
+ bool
+ default y if CC_IS_GCC && !CC_NO_STRINGOP_OVERFLOW
#
# For architectures that know their GCC __int128 support is sound
config HAVE_PCSPKR_PLATFORM
bool
-# interpreter that classic socket filters depend on
-config BPF
- bool
- select CRYPTO_LIB_SHA1
-
menuconfig EXPERT
bool "Configure standard kernel features (expert users)"
# Unhide debug options, to make the on-by-default options visible
config SGETMASK_SYSCALL
bool "sgetmask/ssetmask syscalls support" if EXPERT
- def_bool PARISC || M68K || PPC || MIPS || X86 || SPARC || MICROBLAZE || SUPERH
+ default PARISC || M68K || PPC || MIPS || X86 || SPARC || MICROBLAZE || SUPERH
help
sys_sgetmask and sys_ssetmask are obsolete system calls
no longer supported in libc but still enabled by default in some
config ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
bool
+ config ARCH_HAS_PREPARE_SYNC_CORE_CMD
+ bool
+
config ARCH_HAS_SYNC_CORE_BEFORE_USERMODE
bool
#endif
#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_UCLAMP_TASK
#ifdef CONFIG_UCLAMP_TASK_GROUP
static void uclamp_update_root_tg(void)
{
return result;
}
#endif
-#endif
static int uclamp_validate(struct task_struct *p,
const struct sched_attr *attr)
}
}
-#else /* CONFIG_UCLAMP_TASK */
+#else /* !CONFIG_UCLAMP_TASK */
static inline void uclamp_rq_inc(struct rq *rq, struct task_struct *p) { }
static inline void uclamp_rq_dec(struct rq *rq, struct task_struct *p) { }
static inline int uclamp_validate(struct task_struct *p,
}
}
+bool cpus_equal_capacity(int this_cpu, int that_cpu)
+{
+ if (!sched_asym_cpucap_active())
+ return true;
+
+ if (this_cpu == that_cpu)
+ return true;
+
+ return arch_scale_cpu_capacity(this_cpu) == arch_scale_cpu_capacity(that_cpu);
+}
+
bool cpus_share_cache(int this_cpu, int that_cpu)
{
if (this_cpu == that_cpu)
* if (signal_pending_state()) if (p->state & @state)
*
* Also, the membarrier system call requires a full memory barrier
- * after coming from user-space, before storing to rq->curr.
+ * after coming from user-space, before storing to rq->curr; this
+ * barrier matches a full barrier in the proximity of the membarrier
+ * system call exit.
*/
rq_lock(rq, &rf);
smp_mb__after_spinlock();
*
* Here are the schemes providing that barrier on the
* various architectures:
- * - mm ? switch_mm() : mmdrop() for x86, s390, sparc, PowerPC.
- * switch_mm() rely on membarrier_arch_switch_mm() on PowerPC.
+ * - mm ? switch_mm() : mmdrop() for x86, s390, sparc, PowerPC,
+ * RISC-V. switch_mm() relies on membarrier_arch_switch_mm()
+ * on PowerPC and on RISC-V.
* - finish_lock_switch() for weakly-ordered
* architectures where spin_unlock is a full barrier,
* - switch_to() for arm64 (weakly-ordered, spin_unlock
* is a RELEASE barrier),
+ *
+ * The barrier matches a full barrier in the proximity of
+ * the membarrier system call entry.
+ *
+ * On RISC-V, this barrier pairing is also needed for the
+ * SYNC_CORE command when switching between processes, cf.
+ * the inline comments in membarrier_arch_switch_mm().
*/
++*switch_count;
static void sched_update_worker(struct task_struct *tsk)
{
- if (tsk->flags & (PF_WQ_WORKER | PF_IO_WORKER)) {
+ if (tsk->flags & (PF_WQ_WORKER | PF_IO_WORKER | PF_BLOCK_TS)) {
+ if (tsk->flags & PF_BLOCK_TS)
+ blk_plug_invalidate_ts(tsk);
if (tsk->flags & PF_WQ_WORKER)
wq_worker_running(tsk);
- else
+ else if (tsk->flags & PF_IO_WORKER)
io_wq_worker_running(tsk);
}
}
| MEMBARRIER_PRIVATE_EXPEDITED_RSEQ_BITMASK \
| MEMBARRIER_CMD_GET_REGISTRATIONS)
+static DEFINE_MUTEX(membarrier_ipi_mutex);
+#define SERIALIZE_IPI() guard(mutex)(&membarrier_ipi_mutex)
+
static void ipi_mb(void *info)
{
smp_mb(); /* IPIs should be serializing but paranoid. */
return 0;
/*
- * Matches memory barriers around rq->curr modification in
+ * Matches memory barriers after rq->curr modification in
* scheduler.
*/
smp_mb(); /* system call entry is not a mb. */
if (!zalloc_cpumask_var(&tmpmask, GFP_KERNEL))
return -ENOMEM;
+ SERIALIZE_IPI();
cpus_read_lock();
rcu_read_lock();
for_each_online_cpu(cpu) {
/*
* Memory barrier on the caller thread _after_ we finished
- * waiting for the last IPI. Matches memory barriers around
+ * waiting for the last IPI. Matches memory barriers before
* rq->curr modification in scheduler.
*/
smp_mb(); /* exit from system call is not a mb */
MEMBARRIER_STATE_PRIVATE_EXPEDITED_SYNC_CORE_READY))
return -EPERM;
ipi_func = ipi_sync_core;
+ prepare_sync_core_cmd(mm);
} else if (flags == MEMBARRIER_FLAG_RSEQ) {
if (!IS_ENABLED(CONFIG_RSEQ))
return -EINVAL;
return 0;
/*
- * Matches memory barriers around rq->curr modification in
+ * Matches memory barriers after rq->curr modification in
* scheduler.
+ *
+ * On RISC-V, this barrier pairing is also needed for the
+ * SYNC_CORE command when switching between processes, cf.
+ * the inline comments in membarrier_arch_switch_mm().
*/
smp_mb(); /* system call entry is not a mb. */
if (cpu_id < 0 && !zalloc_cpumask_var(&tmpmask, GFP_KERNEL))
return -ENOMEM;
+ SERIALIZE_IPI();
cpus_read_lock();
if (cpu_id >= 0) {
/*
* Memory barrier on the caller thread _after_ we finished
- * waiting for the last IPI. Matches memory barriers around
+ * waiting for the last IPI. Matches memory barriers before
* rq->curr modification in scheduler.
*/
smp_mb(); /* exit from system call is not a mb */
* between threads which are users of @mm has its membarrier state
* updated.
*/
+ SERIALIZE_IPI();
cpus_read_lock();
rcu_read_lock();
for_each_online_cpu(cpu) {
#ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
const int mmap_rnd_bits_min = CONFIG_ARCH_MMAP_RND_BITS_MIN;
- const int mmap_rnd_bits_max = CONFIG_ARCH_MMAP_RND_BITS_MAX;
+ int mmap_rnd_bits_max __ro_after_init = CONFIG_ARCH_MMAP_RND_BITS_MAX;
int mmap_rnd_bits __read_mostly = CONFIG_ARCH_MMAP_RND_BITS;
#endif
#ifdef CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
* Requires inode->i_mapping->i_mmap_rwsem
*/
static void __remove_shared_vm_struct(struct vm_area_struct *vma,
- struct file *file, struct address_space *mapping)
+ struct address_space *mapping)
{
if (vma_is_shared_maywrite(vma))
mapping_unmap_writable(mapping);
if (file) {
struct address_space *mapping = file->f_mapping;
i_mmap_lock_write(mapping);
- __remove_shared_vm_struct(vma, file, mapping);
+ __remove_shared_vm_struct(vma, mapping);
i_mmap_unlock_write(mapping);
}
}
flush_dcache_mmap_unlock(mapping);
}
+static void vma_link_file(struct vm_area_struct *vma)
+{
+ struct file *file = vma->vm_file;
+ struct address_space *mapping;
+
+ if (file) {
+ mapping = file->f_mapping;
+ i_mmap_lock_write(mapping);
+ __vma_link_file(vma, mapping);
+ i_mmap_unlock_write(mapping);
+ }
+}
+
static int vma_link(struct mm_struct *mm, struct vm_area_struct *vma)
{
VMA_ITERATOR(vmi, mm, 0);
- struct address_space *mapping = NULL;
vma_iter_config(&vmi, vma->vm_start, vma->vm_end);
if (vma_iter_prealloc(&vmi, vma))
return -ENOMEM;
vma_start_write(vma);
-
vma_iter_store(&vmi, vma);
-
- if (vma->vm_file) {
- mapping = vma->vm_file->f_mapping;
- i_mmap_lock_write(mapping);
- __vma_link_file(vma, mapping);
- i_mmap_unlock_write(mapping);
- }
-
+ vma_link_file(vma);
mm->map_count++;
validate_mm(mm);
return 0;
}
if (vp->remove && vp->file) {
- __remove_shared_vm_struct(vp->remove, vp->file, vp->mapping);
+ __remove_shared_vm_struct(vp->remove, vp->mapping);
if (vp->remove2)
- __remove_shared_vm_struct(vp->remove2, vp->file,
- vp->mapping);
+ __remove_shared_vm_struct(vp->remove2, vp->mapping);
} else if (vp->insert) {
/*
* split_vma has split insert from vma, and needs
vma_prepare(&vp);
vma_adjust_trans_huge(vma, start, end, 0);
- vma->vm_start = start;
- vma->vm_end = end;
- vma->vm_pgoff = pgoff;
+ vma_set_range(vma, start, end, pgoff);
vma_iter_store(vmi, vma);
vma_complete(&vp, vmi, vma->vm_mm);
vma_adjust_trans_huge(vma, start, end, 0);
vma_iter_clear(vmi);
- vma->vm_start = start;
- vma->vm_end = end;
- vma->vm_pgoff = pgoff;
+ vma_set_range(vma, start, end, pgoff);
vma_complete(&vp, vmi, vma->vm_mm);
return 0;
}
* area is returned, or the function will return NULL
*/
static struct vm_area_struct
-*vma_merge(struct vma_iterator *vmi, struct mm_struct *mm,
- struct vm_area_struct *prev, unsigned long addr, unsigned long end,
- unsigned long vm_flags, struct anon_vma *anon_vma, struct file *file,
- pgoff_t pgoff, struct mempolicy *policy,
+*vma_merge(struct vma_iterator *vmi, struct vm_area_struct *prev,
+ struct vm_area_struct *src, unsigned long addr, unsigned long end,
+ unsigned long vm_flags, pgoff_t pgoff, struct mempolicy *policy,
struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
struct anon_vma_name *anon_name)
{
+ struct mm_struct *mm = src->vm_mm;
+ struct anon_vma *anon_vma = src->anon_vma;
+ struct file *file = src->vm_file;
struct vm_area_struct *curr, *next, *res;
struct vm_area_struct *vma, *adjust, *remove, *remove2;
struct vm_area_struct *anon_dup = NULL;
} else if (merge_prev) { /* case 2 */
if (curr) {
vma_start_write(curr);
- err = dup_anon_vma(prev, curr, &anon_dup);
if (end == curr->vm_end) { /* case 7 */
+ /*
+ * can_vma_merge_after() assumed we would not be
+ * removing prev vma, so it skipped the check
+ * for vm_ops->close, but we are removing curr
+ */
+ if (curr->vm_ops && curr->vm_ops->close)
+ err = -EINVAL;
remove = curr;
} else { /* case 5 */
adjust = curr;
adj_start = (end - curr->vm_start);
}
+ if (!err)
+ err = dup_anon_vma(prev, curr, &anon_dup);
}
} else { /* merge_next */
vma_start_write(next);
vma_prepare(&vp);
vma_adjust_trans_huge(vma, vma_start, vma_end, adj_start);
-
- vma->vm_start = vma_start;
- vma->vm_end = vma_end;
- vma->vm_pgoff = vma_pgoff;
+ vma_set_range(vma, vma_start, vma_end, vma_pgoff);
if (vma_expanded)
vma_iter_store(vmi, vma);
/*
* mmap_region() will call shmem_zero_setup() to create a file,
* so use shmem's get_unmapped_area in case it can be huge.
- * do_mmap() will clear pgoff, so match alignment.
*/
- pgoff = 0;
get_area = shmem_get_unmapped_area;
} else if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
/* Ensures that larger anonymous mappings are THP aligned. */
get_area = thp_get_unmapped_area;
}
+ /* Always treat pgoff as zero for anonymous memory. */
+ if (!file)
+ pgoff = 0;
+
addr = get_area(file, addr, len, pgoff, flags);
if (IS_ERR_VALUE(addr))
return addr;
}
}
anon_vma_unlock_write(vma->anon_vma);
- khugepaged_enter_vma(vma, vma->vm_flags);
mas_destroy(&mas);
validate_mm(mm);
return error;
}
}
anon_vma_unlock_write(vma->anon_vma);
- khugepaged_enter_vma(vma, vma->vm_flags);
mas_destroy(&mas);
validate_mm(mm);
return error;
pgoff_t pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
struct vm_area_struct *merged;
- merged = vma_merge(vmi, vma->vm_mm, prev, start, end, vm_flags,
- vma->anon_vma, vma->vm_file, pgoff, policy,
- uffd_ctx, anon_name);
+ merged = vma_merge(vmi, prev, vma, start, end, vm_flags,
+ pgoff, policy, uffd_ctx, anon_name);
if (merged)
return merged;
struct vm_area_struct *vma, unsigned long start,
unsigned long end, pgoff_t pgoff)
{
- return vma_merge(vmi, vma->vm_mm, prev, start, end, vma->vm_flags,
- vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
- vma->vm_userfaultfd_ctx, anon_vma_name(vma));
+ return vma_merge(vmi, prev, vma, start, end, vma->vm_flags, pgoff,
+ vma_policy(vma), vma->vm_userfaultfd_ctx, anon_vma_name(vma));
}
/*
pgoff_t pgoff = vma->vm_pgoff + vma_pages(vma);
/* vma is specified as prev, so case 1 or 2 will apply. */
- return vma_merge(vmi, vma->vm_mm, vma, vma->vm_end, vma->vm_end + delta,
- vma->vm_flags, vma->anon_vma, vma->vm_file, pgoff,
- vma_policy(vma), vma->vm_userfaultfd_ctx,
- anon_vma_name(vma));
+ return vma_merge(vmi, vma, vma, vma->vm_end, vma->vm_end + delta,
+ vma->vm_flags, pgoff, vma_policy(vma),
+ vma->vm_userfaultfd_ctx, anon_vma_name(vma));
}
/*
}
vma_iter_config(&vmi, addr, end);
- vma->vm_start = addr;
- vma->vm_end = end;
+ vma_set_range(vma, addr, end, pgoff);
vm_flags_init(vma, vm_flags);
vma->vm_page_prot = vm_get_page_prot(vm_flags);
- vma->vm_pgoff = pgoff;
if (file) {
vma->vm_file = get_file(file);
vma_start_write(vma);
vma_iter_store(&vmi, vma);
mm->map_count++;
- if (vma->vm_file) {
- i_mmap_lock_write(vma->vm_file->f_mapping);
- if (vma_is_shared_maywrite(vma))
- mapping_allow_writable(vma->vm_file->f_mapping);
-
- flush_dcache_mmap_lock(vma->vm_file->f_mapping);
- vma_interval_tree_insert(vma, &vma->vm_file->f_mapping->i_mmap);
- flush_dcache_mmap_unlock(vma->vm_file->f_mapping);
- i_mmap_unlock_write(vma->vm_file->f_mapping);
- }
+ vma_link_file(vma);
/*
* vma_merge() calls khugepaged_enter_vma() either, the below
goto unacct_fail;
vma_set_anonymous(vma);
- vma->vm_start = addr;
- vma->vm_end = addr + len;
- vma->vm_pgoff = addr >> PAGE_SHIFT;
+ vma_set_range(vma, addr, addr + len, addr >> PAGE_SHIFT);
vm_flags_init(vma, flags);
vma->vm_page_prot = vm_get_page_prot(flags);
vma_start_write(vma);
new_vma = vm_area_dup(vma);
if (!new_vma)
goto out;
- new_vma->vm_start = addr;
- new_vma->vm_end = addr + len;
- new_vma->vm_pgoff = pgoff;
+ vma_set_range(new_vma, addr, addr + len, pgoff);
if (vma_dup_policy(vma, new_vma))
goto out_free_vma;
if (anon_vma_clone(new_vma, vma))
if (unlikely(vma == NULL))
return ERR_PTR(-ENOMEM);
- vma->vm_start = addr;
- vma->vm_end = addr + len;
-
+ vma_set_range(vma, addr, addr + len, 0);
vm_flags_init(vma, (vm_flags | mm->def_flags |
VM_DONTEXPAND | VM_SOFTDIRTY) & ~VM_LOCKED_MASK);
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
free_kbytes = K(global_zone_page_state(NR_FREE_PAGES));
- sysctl_user_reserve_kbytes = min(free_kbytes / 32, 1UL << 17);
+ sysctl_user_reserve_kbytes = min(free_kbytes / 32, SZ_128K);
return 0;
}
subsys_initcall(init_user_reserve);
free_kbytes = K(global_zone_page_state(NR_FREE_PAGES));
- sysctl_admin_reserve_kbytes = min(free_kbytes / 32, 1UL << 13);
+ sysctl_admin_reserve_kbytes = min(free_kbytes / 32, SZ_8K);
return 0;
}
subsys_initcall(init_admin_reserve);
case MEM_ONLINE:
/* Default max is 128MB. Leave alone if modified by operator. */
tmp = sysctl_user_reserve_kbytes;
- if (0 < tmp && tmp < (1UL << 17))
+ if (tmp > 0 && tmp < SZ_128K)
init_user_reserve();
/* Default max is 8MB. Leave alone if modified by operator. */
tmp = sysctl_admin_reserve_kbytes;
- if (0 < tmp && tmp < (1UL << 13))
+ if (tmp > 0 && tmp < SZ_8K)
init_admin_reserve();
break;
git.samba.org / sfrench / cifs-2.6.git / commitdiff