S: Maintained
+F: Documentation/ABI/testing/sysfs-bus-wmi
F: Documentation/driver-api/wmi.rst
F: Documentation/wmi/
F: drivers/platform/x86/wmi.c
W: https://ez.analog.com/linux-software-drivers
F: drivers/input/misc/ad714x.c
+AD738X ADC DRIVER (AD7380/1/2/4)
+S: Supported
+W: https://wiki.analog.com/resources/tools-software/linux-drivers/iio-adc/ad738x
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml
+F: drivers/iio/adc/ad7380.c
+
AD7877 TOUCHSCREEN DRIVER
S: Supported
F: fs/aio.c
F: include/linux/*aio*.h
+AIROHA ETHERNET DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
+F: drivers/net/ethernet/mediatek/airoha_eth.c
+
AIROHA SPI SNFI DRIVER
F: drivers/input/mouse/alps.*
-ALTERA I2C CONTROLLER DRIVER
-S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-altera.txt
-F: drivers/i2c/busses/i2c-altera.c
-
ALTERA MAILBOX DRIVER
S: Maintained
S: Maintained
F: drivers/gpio/gpio-altera.c
-ALTERA SYSTEM MANAGER DRIVER
-S: Maintained
-F: drivers/mfd/altera-sysmgr.c
-F: include/linux/mfd/altera-sysmgr.h
-
-ALTERA SYSTEM RESOURCE DRIVER FOR ARRIA10 DEVKIT
-S: Maintained
-F: drivers/gpio/gpio-altera-a10sr.c
-F: drivers/mfd/altera-a10sr.c
-F: drivers/reset/reset-a10sr.c
-F: include/dt-bindings/reset/altr,rst-mgr-a10sr.h
-F: include/linux/mfd/altera-a10sr.h
-
ALTERA TRIPLE SPEED ETHERNET DRIVER
F: tools/crypto/ccp/*.c
F: tools/crypto/ccp/*.py
+AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER - HSTI SUPPORT
+S: Supported
+F: drivers/crypto/ccp/hsti.*
+
AMD DISPLAY CORE
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
F: drivers/iommu/amd/
F: include/linux/amd-iommu.h
F: drivers/platform/x86/amd/pmf/
AMD POWERPLAY AND SWSMU
-M: Evan Quan <evan.quan@amd.com>
+M: Kenneth Feng <kenneth.feng@amd.com>
S: Supported
T: git https://gitlab.freedesktop.org/agd5f/linux.git
S: Supported
F: Documentation/admin-guide/pm/amd-pstate.rst
F: drivers/cpufreq/amd-pstate*
-F: include/linux/amd-pstate.h
F: tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
AMD PTDMA DRIVER
F: drivers/iio/adc/ad7091r*
ANALOG DEVICES INC AD7192 DRIVER
-M: Alexandru Tachici <alexandru.tachici@analog.com>
+M: Alisa-Dariana Roman <alisa.roman@analog.com>
S: Supported
W: https://ez.analog.com/linux-software-drivers
F: include/linux/soc/actions/
N: owl
+ARM/AIROHA SOC SUPPORT
+S: Odd Fixes
+F: arch/arm/boot/dts/airoha/
+F: arch/arm64/boot/dts/airoha/
+
ARM/Allwinner SoC Clock Support
S: Maintained
N: sun[x456789]i
N: sun[25]0i
+ARM/ALPHASCALE ARCHITECTURE
+S: Odd Fixes
+F: arch/arm/boot/dts/alphascale/
+F: drivers/clk/clk-asm9260.c
+F: drivers/clocksource/asm9260_timer.c
+F: drivers/rtc/rtc-asm9260.c
+F: drivers/watchdog/asm9260_wdt.c
+
ARM/AMD PENSANDO ARM64 ARCHITECTURE
N: meson
ARM/Annapurna Labs ALPINE ARCHITECTURE
-S: Maintained
+S: Odd Fixes
F: arch/arm/boot/dts/amazon/
F: arch/arm/mach-alpine/
F: arch/arm64/boot/dts/amazon/
F: arch/arm/mach-aspeed/
N: aspeed
+ARM/AXM LSI SOC
+S: Odd Fixes
+F: Documentation/devicetree/bindings/arm/axxia.yaml
+F: arch/arm/boot/dts/intel/axm/
+F: arch/arm/mach-axxia/
+
ARM/BITMAIN ARCHITECTURE
S: Maintained
W: https://www.turris.cz/
F: Documentation/ABI/testing/debugfs-moxtet
+F: Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
F: Documentation/ABI/testing/sysfs-bus-moxtet-devices
F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
F: Documentation/devicetree/bindings/bus/moxtet.txt
F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
+F: Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml
F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
+F: Documentation/devicetree/bindings/interrupt-controller/marvell,mpic.yaml
F: Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
F: Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt
F: drivers/bus/moxtet.c
F: drivers/gpio/gpio-moxtet.c
F: drivers/leds/leds-turris-omnia.c
F: drivers/mailbox/armada-37xx-rwtm-mailbox.c
+F: drivers/platform/cznic/
F: drivers/watchdog/armada_37xx_wdt.c
F: include/dt-bindings/bus/moxtet.h
F: include/linux/armada-37xx-rwtm-mailbox.h
F: include/linux/moxtet.h
+F: include/linux/turris-omnia-mcu-interface.h
ARM/FARADAY FA526 PORT
S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt
+F: Documentation/devicetree/bindings/i2c/nxp,lpc1788-i2c.yaml
F: arch/arm/boot/dts/nxp/lpc/lpc43*
F: drivers/i2c/busses/i2c-lpc2k.c
F: drivers/memory/pl172.c
F: arch/arm/mach-milbeaut/
N: milbeaut
+ARM/MOXA ART SOC
+S: Odd Fixes
+F: Documentation/devicetree/bindings/arm/moxart.yaml
+F: Documentation/devicetree/bindings/clock/moxa,moxart-clock.txt
+F: arch/arm/boot/dts/moxa/
+F: drivers/clk/clk-moxart.c
+
ARM/MStar/Sigmastar Armv7 SoC support
ARM/SPREADTRUM SoC SUPPORT
S: Maintained
F: arch/arm64/boot/dts/sprd
N: sprd
F: arch/arm64/boot/dts/ti/Makefile
F: arch/arm64/boot/dts/ti/k3-*
+ARM/TEXAS INSTRUMENTS NSPIRE ARCHITECTURE
+S: Odd Fixes
+F: Documentation/devicetree/bindings/*/*/ti,nspire*
+F: Documentation/devicetree/bindings/*/ti,nspire*
+F: Documentation/devicetree/bindings/arm/ti/nspire.yaml
+F: arch/arm/boot/dts/nspire/
+
ARM/TOSHIBA VISCONTI ARCHITECTURE
F: arch/arm/vfp/
ARM/VT8500 ARM ARCHITECTURE
-S: Orphan
+S: Odd Fixes
F: Documentation/devicetree/bindings/i2c/i2c-wmt.txt
+F: arch/arm/boot/dts/vt8500/
F: arch/arm/mach-vt8500/
F: drivers/clocksource/timer-vt8500.c
F: drivers/i2c/busses/i2c-viai2c-wmt.c
F: include/uapi/linux/map_to_14segment.h
F: include/uapi/linux/map_to_7segment.h
+AVAGO APDS9306 AMBIENT LIGHT SENSOR DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/iio/light/avago,apds9300.yaml
+F: drivers/iio/light/apds9306.c
+
AVIA HX711 ANALOG DIGITAL CONVERTER IIO DRIVER
F: Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
F: drivers/spi/spi-axi-spi-engine.c
+AXI PWM GENERATOR
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
+F: drivers/pwm/pwm-axi-pwmgen.c
+
AXXIA I2C CONTROLLER
F: drivers/net/wireless/broadcom/b43/
B43LEGACY WIRELESS DRIVER
-S: Maintained
+S: Orphan
W: https://wireless.wiki.kernel.org/en/users/Drivers/b43
F: drivers/net/wireless/broadcom/b43legacy/
BCACHEFS
S: Supported
C: irc://irc.oftc.net/bcache
F: include/linux/bitmap.h
F: include/linux/bits.h
F: include/linux/cpumask.h
+F: include/linux/cpumask_types.h
F: include/linux/find.h
F: include/linux/nodemask.h
+F: include/linux/nodemask_types.h
F: include/vdso/bits.h
F: lib/bitmap-str.c
F: lib/bitmap.c
F: kernel/trace/blktrace.c
F: lib/sbitmap.c
+BLOCK LAYER DEVICE DRIVER API [RUST]
+S: Supported
+W: https://rust-for-linux.com
+B: https://github.com/Rust-for-Linux/linux/issues
+C: https://rust-for-linux.zulipchat.com/#narrow/stream/Block
+T: git https://github.com/Rust-for-Linux/linux.git rust-block-next
+F: drivers/block/rnull.rs
+F: rust/kernel/block.rs
+F: rust/kernel/block/
+
BLOCK2MTD DRIVER
-R: Stanislav Fomichev <sdf@google.com>
+R: Stanislav Fomichev <sdf@fomichev.me>
BPF [SECURITY & LSM] (Security Audit and Enforcement using BPF)
S: Maintained
F: Documentation/bpf/prog_lsm.rst
F: include/linux/bpf_lsm.h
F: kernel/bpf/bpf_lsm.c
+F: kernel/trace/bpf_trace.c
F: security/bpf/
BPF [SELFTESTS] (Test Runners & Infrastructure)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
F: Documentation/networking/can.rst
+F: Documentation/networking/iso15765-2.rst
F: include/linux/can/can-ml.h
F: include/linux/can/core.h
F: include/linux/can/skb.h
F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml
F: sound/soc/codecs/cros_ec_codec.*
+CHROMEOS EC CHARGE CONTROL
+S: Maintained
+F: drivers/power/supply/cros_charge-control.c
+
+CHROMEOS EC HARDWARE MONITORING
+S: Maintained
+F: Documentation/hwmon/cros_ec_hwmon.rst
+F: drivers/hwmon/cros_ec_hwmon.c
+
+CHROMEOS EC LED DRIVER
+S: Maintained
+F: drivers/leds/leds-cros_ec.c
+
CHROMEOS EC SUBDRIVERS
S: Maintained
+F: drivers/power/supply/cros_charge-control.c
F: drivers/power/supply/cros_usbpd-charger.c
N: cros_ec
N: cros-ec
F: sound/pci/hda/hda_cs_dsp_ctl.*
F: sound/soc/codecs/cs*
+CIRRUS LOGIC HAPTIC DRIVERS
+S: Supported
+F: Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
+F: drivers/input/misc/cs40l*
+F: drivers/mfd/cs40l*
+F: include/linux/mfd/cs40l*
+F: sound/soc/codecs/cs40l*
+
CIRRUS LOGIC DSP FIRMWARE DRIVER
CLANG CONTROL FLOW INTEGRITY SUPPORT
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
S: Maintained
F: include/linux/memcontrol.h
F: mm/memcontrol.c
+F: mm/memcontrol-v1.c
+F: mm/memcontrol-v1.h
F: mm/swap_cgroup.c
F: samples/cgroup/*
F: tools/testing/selftests/cgroup/memcg_protection.m
F: drivers/hwmon/dell-smm-hwmon.c
F: include/uapi/linux/i8k.h
+DELL PC DRIVER
+S: Maintained
+F: drivers/platform/x86/dell/dell-pc.c
+
DELL REMOTE BIOS UPDATE DRIVER
F: drivers/usb/dwc3/
DESIGNWARE XDATA IP DRIVER
-S: Maintained
+S: Orphan
F: Documentation/misc-devices/dw-xdata-pcie.rst
F: drivers/misc/dw-xdata-pcie.c
F: Documentation/devicetree/bindings/display/panel/ilitek,ili9805.yaml
F: drivers/gpu/drm/panel/panel-ilitek-ili9805.c
+DRM DRIVER FOR ILITEK ILI9806E PANELS
+S: Maintained
+F: drivers/gpu/drm/panel/panel-ilitek-ili9806e.c
+
DRM DRIVER FOR JADARD JD9365DA-H3 MIPI-DSI LCD PANELS
S: Maintained
S: Maintained
-T: git git://anongit.freedesktop.org/drm/drm-misc
+T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml
F: drivers/gpu/drm/panel/panel-lg-sw43408.c
S: Maintained
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: Documentation/gpu/vkms.rst
+F: drivers/gpu/drm/ci/xfails/vkms*
F: drivers/gpu/drm/vkms/
DRM DRIVER FOR VIRTUALBOX VIRTUAL GPU
S: Maintained
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
+F: Documentation/devicetree/bindings/display/st,stm32mp25-lvds.yaml
F: drivers/gpu/drm/stm
DRM DRIVERS FOR TI KEYSTONE
DRM DRIVERS FOR VC4
S: Supported
-T: git git://github.com/anholt/linux
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: Documentation/devicetree/bindings/display/brcm,bcm2835-*.yaml
F: drivers/gpu/drm/vc4/
DRM PANEL DRIVERS
S: Maintained
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
EXEC & BINFMT API, ELF
-R: Kees Cook <keescook@chromium.org>
+R: Kees Cook <kees@kernel.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/Kconfig.binfmt
F: fs/exec.c
+F: fs/exec_test.c
F: include/linux/binfmts.h
F: include/linux/elf.h
F: include/uapi/linux/binfmts.h
S: Supported
+F: Documentation/filesystems/iomap/*
F: fs/iomap/
F: include/linux/iomap.h
F: drivers/net/ethernet/nvidia/*
FORTIFY_SOURCE
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
S: Maintained
-F: Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
+F: Documentation/devicetree/bindings/spi/fsl,dspi*.yaml
F: drivers/spi/spi-fsl-dspi.c
F: include/linux/spi/spi-fsl-dspi.h
S: Maintained
-F: Documentation/devicetree/bindings/net/fsl-fman.txt
+F: Documentation/devicetree/bindings/net/fsl,fman*.yaml
F: drivers/net/ethernet/freescale/fman
FREESCALE QORIQ PTP CLOCK DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
+F: Documentation/devicetree/bindings/ptp/fsl,ptp.yaml
F: drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp*
F: drivers/net/ethernet/freescale/dpaa2/dprtc*
F: drivers/net/ethernet/freescale/enetc/enetc_ptp.c
FREESCALE QUICC ENGINE LIBRARY
S: Maintained
F: drivers/soc/fsl/qe/
F: drivers/tty/serial/ucc_uart.c
FREESCALE SOC DRIVERS
-S: Orphan
+S: Maintained
F: Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
F: Documentation/devicetree/bindings/soc/fsl/
F: drivers/soc/fsl/
F: sound/soc/fsl/fsl*
F: sound/soc/fsl/imx*
+FREESCALE SOC LPC32XX SOUND DRIVERS
+S: Maintained
+F: Documentation/devicetree/bindings/sound/nxp,lpc3220-i2s.yaml
+F: sound/soc/fsl/lpc3xxx-*
+
FREESCALE SOC SOUND QMC DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-fsi.txt
+F: Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml
F: drivers/i2c/busses/i2c-fsi.c
FSI-ATTACHED SPI DRIVER
F: Documentation/devicetree/bindings/media/i2c/galaxycore,gc0308.yaml
F: drivers/media/i2c/gc0308.c
+GALAXYCORE GC05a2 CAMERA SENSOR DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/galaxycore,gc05a2.yaml
+F: drivers/media/i2c/gc05a2.c
+
+GALAXYCORE GC08A3 CAMERA SENSOR DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml
+F: drivers/media/i2c/gc08a3.c
+
GALAXYCORE GC2145 SENSOR DRIVER
F: include/linux/platform_data/gsc_hwmon.h
GCC PLUGINS
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: drivers/input/touchscreen/resistive-adc-touch.c
GENERIC STRING LIBRARY
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
F: block/partitions/efi.*
HABANALABS PCI DRIVER
S: Supported
C: irc://irc.oftc.net/dri-devel
-T: git https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git
+T: git https://github.com/HabanaAI/drivers.accel.habanalabs.kernel.git
F: Documentation/ABI/testing/debugfs-driver-habanalabs
F: Documentation/ABI/testing/sysfs-driver-habanalabs
F: drivers/accel/habanalabs/
F: net/mac802154/
Intel VIRTIO DATA PATH ACCELERATOR
-M: Zhu Lingshan <lingshan.zhu@intel.com>
+M: Zhu Lingshan <lingshan.zhu@kernel.org>
S: Supported
F: drivers/vdpa/ifcvf/
F: Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
F: drivers/auxdisplay/img-ascii-lcd.c
+IMGTEC JPEG ENCODER DRIVER
+S: Supported
+F: Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml
+F: drivers/media/platform/imagination/e5010*
+
IMGTEC IR DECODER DRIVER
S: Orphan
F: drivers/media/rc/img-ir/
F: drivers/gpu/drm/i915/display/
F: drivers/gpu/drm/xe/display/
F: drivers/gpu/drm/xe/compat-i915-headers
+F: include/drm/intel/
INTEL DRM I915 DRIVER (Meteor Lake, DG2 and older excluding Poulsbo, Moorestown and derivative)
Q: http://patchwork.freedesktop.org/project/intel-gfx/
B: https://drm.pages.freedesktop.org/intel-docs/how-to-file-i915-bugs.html
C: irc://irc.oftc.net/intel-gfx
-T: git git://anongit.freedesktop.org/drm-intel
+T: git https://gitlab.freedesktop.org/drm/i915/kernel.git
F: Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon
F: Documentation/gpu/i915.rst
F: drivers/gpu/drm/ci/xfails/i915*
F: drivers/gpu/drm/i915/
-F: include/drm/i915*
+F: include/drm/intel/
F: include/uapi/drm/i915_drm.h
INTEL DRM XE DRIVER (Lunar Lake and newer)
S: Supported
W: https://drm.pages.freedesktop.org/intel-docs/
F: Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
F: Documentation/gpu/xe/
F: drivers/gpu/drm/xe/
-F: include/drm/xe*
+F: include/drm/intel/
F: include/uapi/drm/xe_drm.h
INTEL ETHERNET DRIVERS
S: Supported
W: https://www.intel.com/content/www/us/en/support.html
INTEL ETHERNET PROTOCOL DRIVER FOR RDMA
-M: Shiraz Saleem <shiraz.saleem@intel.com>
+M: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
S: Supported
F: drivers/infiniband/hw/irdma/
S: Maintained
F: drivers/platform/x86/intel/ifs
F: include/trace/events/intel_ifs.h
+F: tools/testing/selftests/drivers/platform/x86/intel/ifs/
INTEL INTEGRATED SENSOR HUB DRIVER
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
F: drivers/iommu/intel/
INTEL IPU3 CSI-2 CIO2 DRIVER
S: Maintained
W: https://invensense.tdk.com/
+F: Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600
F: Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml
F: drivers/iio/imu/inv_icm42600/
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
F: drivers/iommu/dma-iommu.c
F: drivers/iommu/dma-iommu.h
F: drivers/iommu/iova.c
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux.git
F: Documentation/devicetree/bindings/iommu/
-F: Documentation/userspace-api/iommu.rst
F: drivers/iommu/
F: include/linux/iommu.h
F: include/linux/iova.h
IO_URING
S: Maintained
T: git git://git.kernel.dk/linux-block
F: usr/
KERNEL HARDENING (not covered by other areas)
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
F: include/linux/overflow.h
F: include/linux/randomize_kstack.h
F: kernel/configs/hardening.config
+F: lib/usercopy_kunit.c
F: mm/usercopy.c
K: \b(add|choose)_random_kstack_offset\b
K: \b__check_(object_size|heap_object)\b
S: Supported
-W: http://nfs.sourceforge.net/
+B: https://bugzilla.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git
F: Documentation/filesystems/nfs/
F: fs/lockd/
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git
+F: Documentation/virt/kvm/arm/
+F: Documentation/virt/kvm/devices/arm*
F: arch/arm64/include/asm/kvm*
F: arch/arm64/include/uapi/asm/kvm*
F: arch/arm64/kvm/
KVM PARAVIRT (KVM/paravirt)
S: Supported
S: Maintained
+F: Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
F: drivers/net/dsa/lantiq_gswip.c
F: drivers/net/dsa/lantiq_pce.h
F: drivers/net/ethernet/lantiq_xrx200.c
LEAKING_ADDRESSES
-R: Kees Cook <keescook@chromium.org>
+R: Kees Cook <kees@kernel.org>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git
F: Documentation/devicetree/bindings/leds/
F: Documentation/leds/
F: drivers/leds/
LINUX FOR POWERPC EMBEDDED PPC4XX
S: Orphan
-F: arch/powerpc/platforms/40x/
F: arch/powerpc/platforms/44x/
LINUX FOR POWERPC EMBEDDED PPC85XX
F: arch/powerpc/platforms/83xx/
LINUX KERNEL DUMP TEST MODULE (LKDTM)
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Maintained
F: drivers/misc/lkdtm/*
F: tools/testing/selftests/lkdtm/*
F: drivers/media/usb/dvb-usb-v2/lmedm04*
LOADPIN SECURITY MODULE
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: Documentation/admin-guide/LSM/LoadPin.rst
F: Documentation/translations/zh_CN/arch/loongarch/
F: arch/loongarch/
F: drivers/*/*loongarch*
+F: drivers/cpufreq/loongson3_cpufreq.c
LOONGSON GPIO DRIVER
F: include/linux/dsa/mv88e6xxx.h
F: include/linux/platform_data/mv88e6xxx.h
+MARVELL 88PM886 PMIC DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml
+F: drivers/input/misc/88pm886-onkey.c
+F: drivers/mfd/88pm886.c
+F: drivers/regulators/88pm886-regulator.c
+F: include/linux/mfd/88pm886.h
+
MARVELL ARMADA 3700 PHY DRIVERS
S: Maintained
F: Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.yaml
F: drivers/mmc/host/sdhci-xenon*
+MARVELL OCTEON CN10K DPI DRIVER
+S: Supported
+F: drivers/misc/mrvl_cn10k_dpi.c
+
+MARVELL OCTEON ENDPOINT VIRTIO DATA PATH ACCELERATOR
+F: drivers/vdpa/octeon_ep/
+
MATROX FRAMEBUFFER DRIVER
S: Orphan
F: Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
F: drivers/staging/media/max96712/max96712.c
+MAX96714 GMSL2 DESERIALIZER DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/maxim,max96714.yaml
+F: drivers/media/i2c/max96714.c
+
+MAX96717 GMSL2 SERIALIZER DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/maxim,max96717.yaml
+F: drivers/media/i2c/max96717.c
+
MAX9860 MONO AUDIO VOICE CODEC DRIVER
-R: Lorenzo Stoakes <lstoakes@gmail.com>
+R: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
S: Maintained
W: http://www.linux-mm.org
F: Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
F: drivers/staging/media/meson/vdec/
+META ETHERNET DRIVERS
+S: Supported
+F: drivers/net/ethernet/meta/
+
METHODE UDPU SUPPORT
S: Maintained
S: Maintained
F: drivers/net/ethernet/microchip/lan966x/*
+ MICROCHIP LAN966X OIC DRIVER
+ S: Maintained
+ F: Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml
+ F: drivers/irqchip/irq-lan966x-oic.c
+
MICROCHIP LCDFB DRIVER
S: Supported
T: git https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git/
+F: Documentation/devicetree/bindings/soc/microchip/
F: drivers/soc/microchip/
MICROCHIP SPI DRIVER
S: Maintained
F: Documentation/devicetree/bindings/mips/mobileye.yaml
+F: Documentation/devicetree/bindings/soc/mobileye/
F: arch/mips/boot/dts/mobileye/
F: arch/mips/configs/eyeq5_defconfig
F: arch/mips/mobileye/board-epm5.its.S
+F: drivers/clk/clk-eyeq.c
+F: drivers/pinctrl/pinctrl-eyeq5.c
+F: drivers/reset/reset-eyeq.c
+F: include/dt-bindings/clock/mobileye,eyeq5-clk.h
MODULE SUPPORT
F: include/linux/most.h
MOTORCOMM PHY DRIVER
S: Maintained
F: Documentation/devicetree/bindings/leds/backlight/mps,mp3309c.yaml
F: drivers/video/backlight/mp3309c.c
+MPS MP2891 DRIVER
+S: Maintained
+F: Documentation/hwmon/mp2891.rst
+F: drivers/hwmon/pmbus/mp2891.c
+
+MPS MP2993 DRIVER
+S: Maintained
+F: Documentation/hwmon/mp2993.rst
+F: drivers/hwmon/pmbus/mp2993.c
+
+MPS MP9941 DRIVER
+S: Maintained
+F: Documentation/hwmon/mp9941.rst
+F: drivers/hwmon/pmbus/mp9941.c
+
MR800 AVERMEDIA USB FM RADIO DRIVER
T: git https://github.com/multipath-tcp/mptcp_net-next.git export-net
T: git https://github.com/multipath-tcp/mptcp_net-next.git export
F: Documentation/netlink/specs/mptcp_pm.yaml
-F: Documentation/networking/mptcp-sysctl.rst
+F: Documentation/networking/mptcp*.rst
F: include/net/mptcp.h
F: include/trace/events/mptcp.h
F: include/uapi/linux/mptcp*.h
F: include/net/tcp.h
F: include/trace/events/tcp.h
F: include/uapi/linux/tcp.h
+F: net/ipv4/inet_connection_sock.c
+F: net/ipv4/inet_hashtables.c
+F: net/ipv4/inet_timewait_sock.c
F: net/ipv4/syncookies.c
F: net/ipv4/tcp*.c
+F: net/ipv6/inet6_connection_sock.c
+F: net/ipv6/inet6_hashtables.c
F: net/ipv6/syncookies.c
F: net/ipv6/tcp*.c
F: tools/testing/selftests/nci/
NFS, SUNRPC, AND LOCKD CLIENTS
S: Maintained
S: Maintained
-F: Documentation/devicetree/bindings/sound/sgtl5000.yaml
+F: Documentation/devicetree/bindings/sound/fsl,sgtl5000.yaml
F: sound/soc/codecs/sgtl5000*
NXP SJA1105 ETHERNET SWITCH DRIVER
F: arch/arm/*omap*/*clock*
OMAP DEVICE TREE SUPPORT
F: arch/arm/mach-omap2/omap_hwmod*data*
OMAP HWMOD SUPPORT
S: Maintained
OMAP1 SUPPORT
S: Maintained
Q: http://patchwork.kernel.org/project/linux-omap/list/
F: include/linux/platform_data/i2c-omap.h
OMAP2+ SUPPORT
S: Maintained
-W: http://www.muru.com/linux/omap/
W: http://linux.omap.com/
Q: http://patchwork.kernel.org/project/linux-omap/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
F: Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt
F: drivers/pci/controller/mobiveil/pcie-layerscape-gen4.c
+PCI DRIVER FOR PLDA PCIE IP
+S: Maintained
+F: Documentation/devicetree/bindings/pci/plda,xpressrich3-axi-common.yaml
+F: drivers/pci/controller/plda/pcie-plda-host.c
+F: drivers/pci/controller/plda/pcie-plda.h
+
PCI DRIVER FOR RENESAS R-CAR
F: drivers/pci/p2pdma.c
F: include/linux/pci-p2pdma.h
+PCI POWER CONTROL
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git
+F: drivers/pci/pwrctl/*
+F: include/linux/pci-pwrctl.h
+
PCI SUBSYSTEM
S: Supported
F: Documentation/devicetree/bindings/pci/microchip*
-F: drivers/pci/controller/*microchip*
+F: drivers/pci/controller/plda/*microchip*
PCIE DRIVER FOR QUALCOMM MSM
S: Maintained
F: drivers/pci/controller/dwc/*spear*
+PCIE DRIVER FOR STARFIVE JH71x0
+S: Maintained
+F: Documentation/devicetree/bindings/pci/starfive,jh7110-pcie.yaml
+F: drivers/pci/controller/plda/pcie-starfive.c
+
PCIE ENDPOINT DRIVER FOR QUALCOMM
PENSANDO ETHERNET DRIVERS
S: Supported
F: Documentation/networking/device_drivers/ethernet/pensando/ionic.rst
F: include/linux/powercap.h
F: kernel/configs/nopm.config
+POWER SEQUENCING
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
+F: drivers/power/sequencing/
+F: include/linux/pwrseq/
+
POWER STATE COORDINATION INTERFACE (PSCI)
PROC SYSCTL
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
F: drivers/net/pse-pd/
PSTORE FILESYSTEM
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
F: Documentation/devicetree/bindings/soc/qcom/qcom,apr*
F: Documentation/devicetree/bindings/sound/qcom,*
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
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
F: drivers/net/wireless/ath/ath12k/
N: ath12k
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
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
F: drivers/net/wireless/ath/ath10k/
N: ath10k
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
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
F: drivers/net/wireless/ath/ath11k/
N: ath11k
S: Maintained
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath9k
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
F: Documentation/devicetree/bindings/net/wireless/qca,ath9k.yaml
F: drivers/net/wireless/ath/ath9k/
S: Maintained
F: Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
F: drivers/misc/fastrpc.c
F: drivers/net/ethernet/qualcomm/rmnet/
F: include/linux/if_rmnet.h
+QUALCOMM TRUST ZONE MEMORY ALLOCATOR
+S: Maintained
+F: drivers/firmware/qcom/qcom_tzmem.c
+F: drivers/firmware/qcom/qcom_tzmem.h
+F: include/linux/firmware/qcom/qcom_tzmem.h
+
QUALCOMM TSENS THERMAL DRIVER
RADEON and AMDGPU DRM DRIVERS
S: Supported
B: https://gitlab.freedesktop.org/drm/amd/-/issues
S: Maintained
F: drivers/ras/amd/fmpm.c
+RASPBERRY PI PISP BACK END
+S: Maintained
+F: Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
+F: drivers/media/platform/raspberrypi/pisp_be/
+F: include/uapi/linux/media/raspberrypi/
+
RC-CORE / LIRC FRAMEWORK
F: tools/testing/selftests/rtc/
Real-time Linux Analysis (RTLA) tools
S: Maintained
F: drivers/net/ethernet/renesas/rcar_gen4*
F: drivers/net/ethernet/renesas/rswitch*
+RENESAS ETHERNET TSN DRIVER
+S: Supported
+F: Documentation/devicetree/bindings/net/renesas,ethertsn.yaml
+F: drivers/net/ethernet/renesas/rtsn.*
+
RENESAS IDT821034 ASoC CODEC
S: Supported
F: Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
F: Documentation/devicetree/bindings/thermal/rcar-thermal.yaml
-F: drivers/thermal/rcar_gen3_thermal.c
-F: drivers/thermal/rcar_thermal.c
+F: drivers/thermal/renesas/rcar_gen3_thermal.c
+F: drivers/thermal/renesas/rcar_thermal.c
RENESAS RIIC DRIVER
F: drivers/firmware/microchip/mpfs-auto-update.c
F: drivers/i2c/busses/i2c-microchip-corei2c.c
F: drivers/mailbox/mailbox-mpfs.c
-F: drivers/pci/controller/pcie-microchip-host.c
+F: drivers/pci/controller/plda/pcie-microchip-host.c
F: drivers/pwm/pwm-microchip-core.c
F: drivers/reset/reset-mpfs.c
F: drivers/rtc/rtc-mpfs.c
X: arch/riscv/boot/dts/allwinner/
X: arch/riscv/boot/dts/renesas/
X: arch/riscv/boot/dts/sophgo/
+X: arch/riscv/boot/dts/thead/
RISC-V PMU DRIVERS
F: drivers/perf/riscv_pmu_sbi.c
RISC-V THEAD SoC SUPPORT
S: Maintained
+T: git https://github.com/pdp7/linux.git
+F: Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
F: arch/riscv/boot/dts/thead/
+F: drivers/clk/thead/clk-th1520-ap.c
+F: include/dt-bindings/clock/thead,th1520-clk-ap.h
RNBD BLOCK DRIVERS
F: drivers/mfd/rohm-bd71828.c
F: drivers/mfd/rohm-bd718x7.c
F: drivers/mfd/rohm-bd9576.c
+F: drivers/mfd/rohm-bd96801.c
F: drivers/regulator/bd71815-regulator.c
F: drivers/regulator/bd71828-regulator.c
F: drivers/regulator/bd718x7-regulator.c
F: drivers/regulator/bd9576-regulator.c
+F: drivers/regulator/bd96801-regulator.c
F: drivers/regulator/rohm-regulator.c
F: drivers/rtc/rtc-bd70528.c
F: drivers/watchdog/bd9576_wdt.c
+F: drivers/watchdog/bd96801_wdt.c
F: include/linux/mfd/rohm-bd71815.h
F: include/linux/mfd/rohm-bd71828.h
F: include/linux/mfd/rohm-bd718x7.h
F: include/linux/mfd/rohm-bd957x.h
+F: include/linux/mfd/rohm-bd96801.h
F: include/linux/mfd/rohm-generic.h
F: include/linux/mfd/rohm-shared.h
RTL8187 WIRELESS DRIVER
S: Maintained
T: git https://github.com/pkshih/rtw.git
F: drivers/infiniband/ulp/rtrs/
RUNTIME VERIFICATION (RV)
S: Maintained
S: Maintained
F: include/uapi/linux/sched.h
F: kernel/sched/
+SCIOSENSE ENS160 MULTI-GAS SENSOR DRIVER
+S: Maintained
+F: drivers/iio/chemical/ens160_core.c
+F: drivers/iio/chemical/ens160_i2c.c
+F: drivers/iio/chemical/ens160_spi.c
+F: drivers/iio/chemical/ens160.h
+
SCSI LIBSAS SUBSYSTEM
F: drivers/media/cec/platform/seco/seco-cec.h
SECURE COMPUTING
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
S: Maintained
F: drivers/mmc/host/sdhci-esdhc-imx.c
SOFTLOGIC 6x10 MPEG CODEC
S: Maintained
T: git git://linuxtv.org/media_tree.git
-F: Documentation/devicetree/bindings/media/i2c/imx258.yaml
+F: Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
F: drivers/media/i2c/imx258.c
SONY IMX274 SENSOR DRIVER
F: Documentation/devicetree/bindings/media/i2c/sony,imx274.yaml
F: drivers/media/i2c/imx274.c
+SONY IMX283 SENSOR DRIVER
+S: Maintained
+T: git git://linuxtv.org/media_tree.git
+F: Documentation/devicetree/bindings/media/i2c/sony,imx283.yaml
+F: drivers/media/i2c/imx283.c
+
SONY IMX290 SENSOR DRIVER
S: Maintained
T: git git://linuxtv.org/media_tree.git
F: Documentation/devicetree/bindings/media/i2c/st,st-vgxy61.yaml
-F: Documentation/userspace-api/media/drivers/st-vgxy61.rst
-F: drivers/media/i2c/st-vgxy61.c
+F: Documentation/userspace-api/media/drivers/vgxy61.rst
+F: drivers/media/i2c/vgxy61.c
ST VL53L0X ToF RANGER(I2C) IIO DRIVER
F: drivers/staging/olpc_dcon/
STAGING - REALTEK RTL8712U DRIVERS
S: Odd Fixes
F: drivers/staging/rtl8712/
STANDALONE CACHE CONTROLLER DRIVERS
S: Maintained
T: git https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git/
+F: Documentation/devicetree/bindings/cache/
F: drivers/cache
STARFIRE/DURALAN NETWORK DRIVER
SYSTEM CONTROL & POWER/MANAGEMENT INTERFACE (SCPI/SCMI) Message Protocol drivers
S: Maintained
F: Documentation/devicetree/bindings/firmware/arm,sc[mp]i.yaml
S: Supported
-F: drivers/net/ethernet/tehuti/*
+F: drivers/net/ethernet/tehuti/tehuti.*
+
+TEHUTI TN40XX ETHERNET DRIVER
+S: Maintained
+F: drivers/net/ethernet/tehuti/tn40*
TELECOM CLOCK DRIVER FOR MCPL0010
S: Maintained
F: Documentation/devicetree/bindings/sound/tas2552.txt
-F: Documentation/devicetree/bindings/sound/tas2562.yaml
-F: Documentation/devicetree/bindings/sound/tas2770.yaml
-F: Documentation/devicetree/bindings/sound/tas27xx.yaml
+F: Documentation/devicetree/bindings/sound/ti,tas2562.yaml
+F: Documentation/devicetree/bindings/sound/ti,tas2770.yaml
+F: Documentation/devicetree/bindings/sound/ti,tas27xx.yaml
F: Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
F: Documentation/devicetree/bindings/sound/ti,pcm3168a.yaml
F: Documentation/devicetree/bindings/sound/ti,tlv320*.yaml
-F: Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
+F: Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
F: Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
F: Documentation/devicetree/bindings/sound/tpa6130a2.txt
F: include/sound/tas2*.h
S: Odd Fixes
F: drivers/gpio/gpio-thunderx.c
+TI ADS1119 ADC DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml
+F: drivers/iio/adc/ti-ads1119.c
+
TI ADS7924 ADC DRIVER
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
+F: Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
F: drivers/pmdomain/ti/omap_prm.c
F: drivers/soc/ti/*
S: Supported
F: drivers/mmc/host/renesas_sdhi*
F: drivers/mmc/host/tmio_mmc*
-F: include/linux/mfd/tmio.h
+F: include/linux/platform_data/tmio.h
TMP513 HARDWARE MONITOR DRIVER
S: Maintained
-W: https://tomoyo.osdn.jp/
+W: https://tomoyo.sourceforge.net/
F: security/tomoyo/
TOPSTAR LAPTOP EXTRAS DRIVER
S: Maintained
-W: https://gitlab.com/jarkkojs/linux-tpmdd-test
+W: https://codeberg.org/jarkko/linux-tpmdd-test
Q: https://patchwork.kernel.org/project/linux-integrity/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
F: Documentation/devicetree/bindings/tpm/
TRACING OS NOISE / LATENCY TRACERS
S: Maintained
F: Documentation/trace/hwlat_detector.rst
F: Documentation/trace/osnoise-tracer.rst
TW5864 VIDEO4LINUX DRIVER
F: include/uapi/linux/ublk_cmd.h
UBSAN
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
F: include/linux/mtd/ubi.h
F: include/uapi/mtd/ubi-user.h
+UPROBES
+S: Maintained
+F: arch/*/include/asm/uprobes.h
+F: arch/*/kernel/probes/uprobes.c
+F: arch/*/kernel/uprobes.c
+F: include/linux/uprobes.h
+F: kernel/events/uprobes.c
+
USB "USBNET" DRIVER FRAMEWORK
F: drivers/media/i2c/og*
F: drivers/media/i2c/ov*
F: drivers/media/i2c/s5*
-F: drivers/media/i2c/st-vgxy61.c
+F: drivers/media/i2c/vgxy61.c
VF610 NAND DRIVER
S: Maintained
F: drivers/net/ethernet/via/via-rhine.c
-VIA SD/MMC CARD CONTROLLER DRIVER
-S: Maintained
-F: drivers/mmc/host/via-sdmmc.c
-
VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
F: drivers/vhost/scsi.c
VIRTIO I2C DRIVER
S: Maintained
S: Maintained
W: http://www.linux-mm.org
F: include/linux/yam.h
YAMA SECURITY MODULE
-M: Kees Cook <keescook@chromium.org>
+M: Kees Cook <kees@kernel.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: Documentation/admin-guide/LSM/Yama.rst
F: mm/zswap.c
F: tools/testing/selftests/cgroup/test_zswap.c
+SENARYTECH AUDIO CODEC DRIVER
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
+F: sound/pci/hda/patch_senarytech.c
+
THE REST
#define LPI_PROPBASE_SZ ALIGN(BIT(LPI_NRBITS), SZ_64K)
#define LPI_PENDBASE_SZ ALIGN(BIT(LPI_NRBITS) / 8, SZ_64K)
-#define LPI_PROP_DEFAULT_PRIO GICD_INT_DEF_PRI
+static u8 __ro_after_init lpi_prop_prio;
/*
* Collection structure - just an ID, and a redistributor address to
{
struct its_cmd_desc desc = {};
struct its_node *its;
- unsigned long flags;
int col_id = vpe->col_idx;
desc.its_vmovp_cmd.vpe = vpe;
return;
}
+ /*
+ * Protect against concurrent updates of the mapping state on
+ * individual VMs.
+ */
+ guard(raw_spinlock_irqsave)(&vpe->its_vm->vmapp_lock);
+
/*
* Yet another marvel of the architecture. If using the
* its_list "feature", we need to make sure that all ITSs
*
* Wall <-- Head.
*/
- raw_spin_lock_irqsave(&vmovp_lock, flags);
-
+ guard(raw_spinlock)(&vmovp_lock);
desc.its_vmovp_cmd.seq_num = vmovp_seq_num++;
desc.its_vmovp_cmd.its_list = get_its_list(vpe->its_vm);
desc.its_vmovp_cmd.col = &its->collections[col_id];
its_send_single_vcommand(its, its_build_vmovp_cmd, &desc);
}
-
- raw_spin_unlock_irqrestore(&vmovp_lock, flags);
}
static void its_send_vinvall(struct its_node *its, struct its_vpe *vpe)
static void its_map_vm(struct its_node *its, struct its_vm *vm)
{
- unsigned long flags;
-
if (gic_requires_eager_mapping())
return;
- raw_spin_lock_irqsave(&vmovp_lock, flags);
+ guard(raw_spinlock_irqsave)(&vm->vmapp_lock);
/*
* If the VM wasn't mapped yet, iterate over the vpes and get
for (i = 0; i < vm->nr_vpes; i++) {
struct its_vpe *vpe = vm->vpes[i];
- struct irq_data *d = irq_get_irq_data(vpe->irq);
- /* Map the VPE to the first possible CPU */
- vpe->col_idx = cpumask_first(cpu_online_mask);
- its_send_vmapp(its, vpe, true);
+ scoped_guard(raw_spinlock, &vpe->vpe_lock)
+ its_send_vmapp(its, vpe, true);
+
its_send_vinvall(its, vpe);
- irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
}
}
-
- raw_spin_unlock_irqrestore(&vmovp_lock, flags);
}
static void its_unmap_vm(struct its_node *its, struct its_vm *vm)
{
- unsigned long flags;
-
/* Not using the ITS list? Everything is always mapped. */
if (gic_requires_eager_mapping())
return;
- raw_spin_lock_irqsave(&vmovp_lock, flags);
+ guard(raw_spinlock_irqsave)(&vm->vmapp_lock);
if (!--vm->vlpi_count[its->list_nr]) {
int i;
- for (i = 0; i < vm->nr_vpes; i++)
+ for (i = 0; i < vm->nr_vpes; i++) {
+ guard(raw_spinlock)(&vm->vpes[i]->vpe_lock);
its_send_vmapp(its, vm->vpes[i], false);
+ }
}
-
- raw_spin_unlock_irqrestore(&vmovp_lock, flags);
}
static int its_vlpi_map(struct irq_data *d, struct its_cmd_info *info)
{
struct its_device *its_dev = irq_data_get_irq_chip_data(d);
u32 event = its_get_event_id(d);
- int ret = 0;
if (!info->map)
return -EINVAL;
- raw_spin_lock(&its_dev->event_map.vlpi_lock);
-
if (!its_dev->event_map.vm) {
struct its_vlpi_map *maps;
maps = kcalloc(its_dev->event_map.nr_lpis, sizeof(*maps),
GFP_ATOMIC);
- if (!maps) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!maps)
+ return -ENOMEM;
its_dev->event_map.vm = info->map->vm;
its_dev->event_map.vlpi_maps = maps;
} else if (its_dev->event_map.vm != info->map->vm) {
- ret = -EINVAL;
- goto out;
+ return -EINVAL;
}
/* Get our private copy of the mapping information */
its_dev->event_map.nr_vlpis++;
}
-out:
- raw_spin_unlock(&its_dev->event_map.vlpi_lock);
- return ret;
+ return 0;
}
static int its_vlpi_get(struct irq_data *d, struct its_cmd_info *info)
{
struct its_device *its_dev = irq_data_get_irq_chip_data(d);
struct its_vlpi_map *map;
- int ret = 0;
-
- raw_spin_lock(&its_dev->event_map.vlpi_lock);
map = get_vlpi_map(d);
- if (!its_dev->event_map.vm || !map) {
- ret = -EINVAL;
- goto out;
- }
+ if (!its_dev->event_map.vm || !map)
+ return -EINVAL;
/* Copy our mapping information to the incoming request */
*info->map = *map;
-out:
- raw_spin_unlock(&its_dev->event_map.vlpi_lock);
- return ret;
+ return 0;
}
static int its_vlpi_unmap(struct irq_data *d)
{
struct its_device *its_dev = irq_data_get_irq_chip_data(d);
u32 event = its_get_event_id(d);
- int ret = 0;
-
- raw_spin_lock(&its_dev->event_map.vlpi_lock);
- if (!its_dev->event_map.vm || !irqd_is_forwarded_to_vcpu(d)) {
- ret = -EINVAL;
- goto out;
- }
+ if (!its_dev->event_map.vm || !irqd_is_forwarded_to_vcpu(d))
+ return -EINVAL;
/* Drop the virtual mapping */
its_send_discard(its_dev, event);
/* and restore the physical one */
irqd_clr_forwarded_to_vcpu(d);
its_send_mapti(its_dev, d->hwirq, event);
- lpi_update_config(d, 0xff, (LPI_PROP_DEFAULT_PRIO |
+ lpi_update_config(d, 0xff, (lpi_prop_prio |
LPI_PROP_ENABLED |
LPI_PROP_GROUP1));
kfree(its_dev->event_map.vlpi_maps);
}
-out:
- raw_spin_unlock(&its_dev->event_map.vlpi_lock);
- return ret;
+ return 0;
}
static int its_vlpi_prop_update(struct irq_data *d, struct its_cmd_info *info)
if (!is_v4(its_dev->its))
return -EINVAL;
+ guard(raw_spinlock_irq)(&its_dev->event_map.vlpi_lock);
+
/* Unmap request? */
if (!info)
return its_vlpi_unmap(d);
static void gic_reset_prop_table(void *va)
{
- /* Priority 0xa0, Group-1, disabled */
- memset(va, LPI_PROP_DEFAULT_PRIO | LPI_PROP_GROUP1, LPI_PROPBASE_SZ);
+ /* Regular IRQ priority, Group-1, disabled */
+ memset(va, lpi_prop_prio | LPI_PROP_GROUP1, LPI_PROPBASE_SZ);
/* Make sure the GIC will observe the written configuration */
gic_flush_dcache_to_poc(va, LPI_PROPBASE_SZ);
{
struct its_node *its;
+ guard(raw_spinlock_irqsave)(&vpe->its_vm->vmapp_lock);
+
list_for_each_entry(its, &its_nodes, entry) {
if (!is_v4(its))
continue;
vm->db_lpi_base = base;
vm->nr_db_lpis = nr_ids;
vm->vprop_page = vprop_page;
+ raw_spin_lock_init(&vm->vmapp_lock);
if (gic_rdists->has_rvpeid)
irqchip = &its_vpe_4_1_irq_chip;
struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
struct its_node *its;
+ /* Map the VPE to the first possible CPU */
+ vpe->col_idx = cpumask_first(cpu_online_mask);
+ irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
+
/*
* If we use the list map, we issue VMAPP on demand... Unless
* we're on a GICv4.1 and we eagerly map the VPE on all ITSs
if (!gic_requires_eager_mapping())
return 0;
- /* Map the VPE to the first possible CPU */
- vpe->col_idx = cpumask_first(cpu_online_mask);
-
list_for_each_entry(its, &its_nodes, entry) {
if (!is_v4(its))
continue;
its_send_vinvall(its, vpe);
}
- irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
-
return 0;
}
goto node_err;
}
+ if (acpi_get_madt_revision() >= 7 &&
+ (its_entry->flags & ACPI_MADT_ITS_NON_COHERENT))
+ its->flags |= ITS_FLAGS_FORCE_NON_SHAREABLE;
+
err = its_probe_one(its);
if (!err)
return 0;
}
int __init its_init(struct fwnode_handle *handle, struct rdists *rdists,
- struct irq_domain *parent_domain)
+ struct irq_domain *parent_domain, u8 irq_prio)
{
struct device_node *of_node;
struct its_node *its;
gic_rdists = rdists;
+ lpi_prop_prio = irq_prio;
its_parent = parent_domain;
of_node = to_of_node(handle);
if (of_node)
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
+#include <linux/kernel.h>
#include <linux/kstrtox.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/irqchip.h>
#include <linux/irqchip/arm-gic-common.h>
#include <linux/irqchip/arm-gic-v3.h>
+#include <linux/irqchip/arm-gic-v3-prio.h>
#include <linux/irqchip/irq-partition-percpu.h>
#include <linux/bitfield.h>
#include <linux/bits.h>
#include "irq-gic-common.h"
-#define GICD_INT_NMI_PRI (GICD_INT_DEF_PRI & ~0x80)
+static u8 dist_prio_irq __ro_after_init = GICV3_PRIO_IRQ;
+static u8 dist_prio_nmi __ro_after_init = GICV3_PRIO_NMI;
#define FLAGS_WORKAROUND_GICR_WAKER_MSM8996 (1ULL << 0)
#define FLAGS_WORKAROUND_CAVIUM_ERRATUM_38539 (1ULL << 1)
#define GIC_IRQ_TYPE_PARTITION (GIC_IRQ_TYPE_LPI + 1)
+static struct cpumask broken_rdists __read_mostly __maybe_unused;
+
struct redist_region {
void __iomem *redist_base;
phys_addr_t phys_base;
*/
static DEFINE_STATIC_KEY_FALSE(supports_pseudo_nmis);
-DEFINE_STATIC_KEY_FALSE(gic_nonsecure_priorities);
-EXPORT_SYMBOL(gic_nonsecure_priorities);
+static u32 gic_get_pribits(void)
+{
+ u32 pribits;
-/*
- * When the Non-secure world has access to group 0 interrupts (as a
- * consequence of SCR_EL3.FIQ == 0), reading the ICC_RPR_EL1 register will
- * return the Distributor's view of the interrupt priority.
- *
- * When GIC security is enabled (GICD_CTLR.DS == 0), the interrupt priority
- * written by software is moved to the Non-secure range by the Distributor.
- *
- * If both are true (which is when gic_nonsecure_priorities gets enabled),
- * we need to shift down the priority programmed by software to match it
- * against the value returned by ICC_RPR_EL1.
- */
-#define GICD_INT_RPR_PRI(priority) \
- ({ \
- u32 __priority = (priority); \
- if (static_branch_unlikely(&gic_nonsecure_priorities)) \
- __priority = 0x80 | (__priority >> 1); \
- \
- __priority; \
- })
+ pribits = gic_read_ctlr();
+ pribits &= ICC_CTLR_EL1_PRI_BITS_MASK;
+ pribits >>= ICC_CTLR_EL1_PRI_BITS_SHIFT;
+ pribits++;
+
+ return pribits;
+}
+
+static bool gic_has_group0(void)
+{
+ u32 val;
+ u32 old_pmr;
+
+ old_pmr = gic_read_pmr();
+
+ /*
+ * Let's find out if Group0 is under control of EL3 or not by
+ * setting the highest possible, non-zero priority in PMR.
+ *
+ * If SCR_EL3.FIQ is set, the priority gets shifted down in
+ * order for the CPU interface to set bit 7, and keep the
+ * actual priority in the non-secure range. In the process, it
+ * looses the least significant bit and the actual priority
+ * becomes 0x80. Reading it back returns 0, indicating that
+ * we're don't have access to Group0.
+ */
+ gic_write_pmr(BIT(8 - gic_get_pribits()));
+ val = gic_read_pmr();
+
+ gic_write_pmr(old_pmr);
+
+ return val != 0;
+}
+
+static inline bool gic_dist_security_disabled(void)
+{
+ return readl_relaxed(gic_data.dist_base + GICD_CTLR) & GICD_CTLR_DS;
+}
+
+static bool cpus_have_security_disabled __ro_after_init;
+static bool cpus_have_group0 __ro_after_init;
+
+static void __init gic_prio_init(void)
+{
+ cpus_have_security_disabled = gic_dist_security_disabled();
+ cpus_have_group0 = gic_has_group0();
+
+ /*
+ * How priority values are used by the GIC depends on two things:
+ * the security state of the GIC (controlled by the GICD_CTRL.DS bit)
+ * and if Group 0 interrupts can be delivered to Linux in the non-secure
+ * world as FIQs (controlled by the SCR_EL3.FIQ bit). These affect the
+ * way priorities are presented in ICC_PMR_EL1 and in the distributor:
+ *
+ * GICD_CTRL.DS | SCR_EL3.FIQ | ICC_PMR_EL1 | Distributor
+ * -------------------------------------------------------
+ * 1 | - | unchanged | unchanged
+ * -------------------------------------------------------
+ * 0 | 1 | non-secure | non-secure
+ * -------------------------------------------------------
+ * 0 | 0 | unchanged | non-secure
+ *
+ * In the non-secure view reads and writes are modified:
+ *
+ * - A value written is right-shifted by one and the MSB is set,
+ * forcing the priority into the non-secure range.
+ *
+ * - A value read is left-shifted by one.
+ *
+ * In the first two cases, where ICC_PMR_EL1 and the interrupt priority
+ * are both either modified or unchanged, we can use the same set of
+ * priorities.
+ *
+ * In the last case, where only the interrupt priorities are modified to
+ * be in the non-secure range, we program the non-secure values into
+ * the distributor to match the PMR values we want.
+ */
+ if (cpus_have_group0 & !cpus_have_security_disabled) {
+ dist_prio_irq = __gicv3_prio_to_ns(dist_prio_irq);
+ dist_prio_nmi = __gicv3_prio_to_ns(dist_prio_nmi);
+ }
+
+ pr_info("GICD_CTRL.DS=%d, SCR_EL3.FIQ=%d\n",
+ cpus_have_security_disabled,
+ !cpus_have_group0);
+}
/* rdist_nmi_refs[n] == number of cpus having the rdist interrupt n set as NMI */
static refcount_t *rdist_nmi_refs;
desc->handle_irq = handle_fasteoi_nmi;
}
- gic_irq_set_prio(d, GICD_INT_NMI_PRI);
+ gic_irq_set_prio(d, dist_prio_nmi);
return 0;
}
desc->handle_irq = handle_fasteoi_irq;
}
- gic_irq_set_prio(d, GICD_INT_DEF_PRI);
+ gic_irq_set_prio(d, dist_prio_irq);
}
static bool gic_arm64_erratum_2941627_needed(struct irq_data *d)
offset = convert_offset_index(d, GICD_ICFGR, &index);
- ret = gic_configure_irq(index, type, base + offset, NULL);
+ ret = gic_configure_irq(index, type, base + offset);
if (ret && (range == PPI_RANGE || range == EPPI_RANGE)) {
/* Misconfigured PPIs are usually not fatal */
pr_warn("GIC: PPI INTID%ld is secure or misconfigured\n", irq);
if (!gic_supports_nmi())
return false;
- return unlikely(gic_read_rpr() == GICD_INT_RPR_PRI(GICD_INT_NMI_PRI));
+ return unlikely(gic_read_rpr() == GICV3_PRIO_NMI);
}
static bool gic_irqnr_is_special(u32 irqnr)
__gic_handle_irq_from_irqson(regs);
}
-static u32 gic_get_pribits(void)
-{
- u32 pribits;
-
- pribits = gic_read_ctlr();
- pribits &= ICC_CTLR_EL1_PRI_BITS_MASK;
- pribits >>= ICC_CTLR_EL1_PRI_BITS_SHIFT;
- pribits++;
-
- return pribits;
-}
-
-static bool gic_has_group0(void)
-{
- u32 val;
- u32 old_pmr;
-
- old_pmr = gic_read_pmr();
-
- /*
- * Let's find out if Group0 is under control of EL3 or not by
- * setting the highest possible, non-zero priority in PMR.
- *
- * If SCR_EL3.FIQ is set, the priority gets shifted down in
- * order for the CPU interface to set bit 7, and keep the
- * actual priority in the non-secure range. In the process, it
- * looses the least significant bit and the actual priority
- * becomes 0x80. Reading it back returns 0, indicating that
- * we're don't have access to Group0.
- */
- gic_write_pmr(BIT(8 - gic_get_pribits()));
- val = gic_read_pmr();
-
- gic_write_pmr(old_pmr);
-
- return val != 0;
-}
-
static void __init gic_dist_init(void)
{
unsigned int i;
writel_relaxed(0, base + GICD_ICFGRnE + i / 4);
for (i = 0; i < GIC_ESPI_NR; i += 4)
- writel_relaxed(GICD_INT_DEF_PRI_X4, base + GICD_IPRIORITYRnE + i);
+ writel_relaxed(REPEAT_BYTE_U32(dist_prio_irq),
+ base + GICD_IPRIORITYRnE + i);
/* Now do the common stuff */
- gic_dist_config(base, GIC_LINE_NR, NULL);
+ gic_dist_config(base, GIC_LINE_NR, dist_prio_irq);
val = GICD_CTLR_ARE_NS | GICD_CTLR_ENABLE_G1A | GICD_CTLR_ENABLE_G1;
if (gic_data.rdists.gicd_typer2 & GICD_TYPER2_nASSGIcap) {
gic_data.rdists.has_vpend_valid_dirty ? "Valid+Dirty " : "");
}
-/* Check whether it's single security state view */
-static inline bool gic_dist_security_disabled(void)
-{
- return readl_relaxed(gic_data.dist_base + GICD_CTLR) & GICD_CTLR_DS;
-}
-
static void gic_cpu_sys_reg_init(void)
{
int i, cpu = smp_processor_id();
write_gicreg(DEFAULT_PMR_VALUE, ICC_PMR_EL1);
} else if (gic_supports_nmi()) {
/*
- * Mismatch configuration with boot CPU, the system is likely
- * to die as interrupt masking will not work properly on all
- * CPUs
+ * Check that all CPUs use the same priority space.
*
- * The boot CPU calls this function before enabling NMI support,
- * and as a result we'll never see this warning in the boot path
- * for that CPU.
+ * If there's a mismatch with the boot CPU, the system is
+ * likely to die as interrupt masking will not work properly on
+ * all CPUs.
*/
- if (static_branch_unlikely(&gic_nonsecure_priorities))
- WARN_ON(!group0 || gic_dist_security_disabled());
- else
- WARN_ON(group0 && !gic_dist_security_disabled());
+ WARN_ON(group0 != cpus_have_group0);
+ WARN_ON(gic_dist_security_disabled() != cpus_have_security_disabled);
}
/*
for (i = 0; i < gic_data.ppi_nr + SGI_NR; i += 32)
writel_relaxed(~0, rbase + GICR_IGROUPR0 + i / 8);
- gic_cpu_config(rbase, gic_data.ppi_nr + SGI_NR, gic_redist_wait_for_rwp);
+ gic_cpu_config(rbase, gic_data.ppi_nr + SGI_NR, dist_prio_irq);
+ gic_redist_wait_for_rwp();
/* initialise system registers */
gic_cpu_sys_reg_init();
#define MPIDR_TO_SGI_RS(mpidr) (MPIDR_RS(mpidr) << ICC_SGI1R_RS_SHIFT)
#define MPIDR_TO_SGI_CLUSTER_ID(mpidr) ((mpidr) & ~0xFUL)
+/*
+ * gic_starting_cpu() is called after the last point where cpuhp is allowed
+ * to fail. So pre check for problems earlier.
+ */
+static int gic_check_rdist(unsigned int cpu)
+{
+ if (cpumask_test_cpu(cpu, &broken_rdists))
+ return -EINVAL;
+
+ return 0;
+}
+
static int gic_starting_cpu(unsigned int cpu)
{
gic_cpu_init();
};
int base_sgi;
+ cpuhp_setup_state_nocalls(CPUHP_BP_PREPARE_DYN,
+ "irqchip/arm/gicv3:checkrdist",
+ gic_check_rdist, NULL);
+
cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_GIC_STARTING,
"irqchip/arm/gicv3:starting",
gic_starting_cpu, NULL);
pr_info("Pseudo-NMIs enabled using %s ICC_PMR_EL1 synchronisation\n",
gic_has_relaxed_pmr_sync() ? "relaxed" : "forced");
- /*
- * How priority values are used by the GIC depends on two things:
- * the security state of the GIC (controlled by the GICD_CTRL.DS bit)
- * and if Group 0 interrupts can be delivered to Linux in the non-secure
- * world as FIQs (controlled by the SCR_EL3.FIQ bit). These affect the
- * ICC_PMR_EL1 register and the priority that software assigns to
- * interrupts:
- *
- * GICD_CTRL.DS | SCR_EL3.FIQ | ICC_PMR_EL1 | Group 1 priority
- * -----------------------------------------------------------
- * 1 | - | unchanged | unchanged
- * -----------------------------------------------------------
- * 0 | 1 | non-secure | non-secure
- * -----------------------------------------------------------
- * 0 | 0 | unchanged | non-secure
- *
- * where non-secure means that the value is right-shifted by one and the
- * MSB bit set, to make it fit in the non-secure priority range.
- *
- * In the first two cases, where ICC_PMR_EL1 and the interrupt priority
- * are both either modified or unchanged, we can use the same set of
- * priorities.
- *
- * In the last case, where only the interrupt priorities are modified to
- * be in the non-secure range, we use a different PMR value to mask IRQs
- * and the rest of the values that we use remain unchanged.
- */
- if (gic_has_group0() && !gic_dist_security_disabled())
- static_branch_enable(&gic_nonsecure_priorities);
-
static_branch_enable(&supports_pseudo_nmis);
if (static_branch_likely(&supports_deactivate_key))
gic_update_rdist_properties();
+ gic_prio_init();
gic_dist_init();
gic_cpu_init();
gic_enable_nmi_support();
gic_cpu_pm_init();
if (gic_dist_supports_lpis()) {
- its_init(handle, &gic_data.rdists, gic_data.domain);
+ its_init(handle, &gic_data.rdists, gic_data.domain, dist_prio_irq);
its_cpu_init();
its_lpi_memreserve_init();
} else {
of_node_put(parts_node);
}
- static void __init gic_of_setup_kvm_info(struct device_node *node)
+ static void __init gic_of_setup_kvm_info(struct device_node *node, u32 nr_redist_regions)
{
int ret;
struct resource r;
- u32 gicv_idx;
gic_v3_kvm_info.type = GIC_V3;
if (!gic_v3_kvm_info.maint_irq)
return;
- if (of_property_read_u32(node, "#redistributor-regions",
- &gicv_idx))
- gicv_idx = 1;
-
- gicv_idx += 3; /* Also skip GICD, GICC, GICH */
- ret = of_address_to_resource(node, gicv_idx, &r);
+ /* Also skip GICD, GICC, GICH */
+ ret = of_address_to_resource(node, nr_redist_regions + 3, &r);
if (!ret)
gic_v3_kvm_info.vcpu = r;
gic_populate_ppi_partitions(node);
if (static_branch_likely(&supports_deactivate_key))
- gic_of_setup_kvm_info(node);
+ gic_of_setup_kvm_info(node, nr_redist_regions);
return 0;
out_unmap_rdist:
pr_err("Couldn't map GICR region @%llx\n", redist->base_address);
return -ENOMEM;
}
+
+ if (acpi_get_madt_revision() >= 7 &&
+ (redist->flags & ACPI_MADT_GICR_NON_COHERENT))
+ gic_data.rdists.flags |= RDIST_FLAGS_FORCE_NON_SHAREABLE;
+
gic_request_region(redist->base_address, redist->length, "GICR");
gic_acpi_register_redist(redist->base_address, redist_base);
u32 size = reg == GIC_PIDR2_ARCH_GICv4 ? SZ_64K * 4 : SZ_64K * 2;
void __iomem *redist_base;
- if (!acpi_gicc_is_usable(gicc))
+ /* Neither enabled or online capable means it doesn't exist, skip it */
+ if (!(gicc->flags & (ACPI_MADT_ENABLED | ACPI_MADT_GICC_ONLINE_CAPABLE)))
+ return 0;
+
+ /*
+ * Capable but disabled CPUs can be brought online later. What about
+ * the redistributor? ACPI doesn't want to say!
+ * Virtual hotplug systems can use the MADT's "always-on" GICR entries.
+ * Otherwise, prevent such CPUs from being brought online.
+ */
+ if (!(gicc->flags & ACPI_MADT_ENABLED)) {
+ int cpu = get_cpu_for_acpi_id(gicc->uid);
+
+ pr_warn("CPU %u's redistributor is inaccessible: this CPU can't be brought online\n", cpu);
+ if (cpu >= 0)
+ cpumask_set_cpu(cpu, &broken_rdists);
return 0;
+ }
redist_base = ioremap(gicc->gicr_base_address, size);
if (!redist_base)
return -ENOMEM;
gic_request_region(gicc->gicr_base_address, size, "GICR");
+ if (acpi_get_madt_revision() >= 7 &&
+ (gicc->flags & ACPI_MADT_GICC_NON_COHERENT))
+ gic_data.rdists.flags |= RDIST_FLAGS_FORCE_NON_SHAREABLE;
+
gic_acpi_register_redist(gicc->gicr_base_address, redist_base);
return 0;
}
/*
* If GICC is enabled and has valid gicr base address, then it means
- * GICR base is presented via GICC
+ * GICR base is presented via GICC. The redistributor is only known to
+ * be accessible if the GICC is marked as enabled. If this bit is not
+ * set, we'd need to add the redistributor at runtime, which isn't
+ * supported.
*/
- if (acpi_gicc_is_usable(gicc) && gicc->gicr_base_address) {
+ if (gicc->flags & ACPI_MADT_ENABLED && gicc->gicr_base_address)
acpi_data.enabled_rdists++;
- return 0;
- }
- /*
- * It's perfectly valid firmware can pass disabled GICC entry, driver
- * should not treat as errors, skip the entry instead of probe fail.
- */
- if (!acpi_gicc_is_usable(gicc))
- return 0;
-
- return -ENODEV;
+ return 0;
}
static int __init gic_acpi_count_gicr_regions(void)
int maint_irq_mode;
static int first_madt = true;
- if (!acpi_gicc_is_usable(gicc))
+ if (!(gicc->flags &
+ (ACPI_MADT_ENABLED | ACPI_MADT_GICC_ONLINE_CAPABLE)))
return 0;
maint_irq_mode = (gicc->flags & ACPI_MADT_VGIC_IRQ_MODE) ?
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