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/linux/kernel/module/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
64 bool "Debug duplicate modules with auto-loading"
66 Module autoloading allows in-kernel code to request modules through
75 requests are non-fatal virtual memory is a limited resource and each
80 module requests to help identify if module auto-loading may be the
81 culprit to your early boot virtual memory pressure. Since virtual
84 requests for the same module to a single request. You can boot with
93 non-wait request_module() call is synchronous and waits until modprobe
94 completes. Subsequent auto-loading requests for the same module do
100 boot on systems which are failing to boot or if you suspect you may be
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/linux/Documentation/networking/
H A Dnetconsole.rst1 .. SPDX-License-Identifier: GPL-2.0
31 It can be used either built-in or as a module. As a built-in,
34 capture of early kernel panics, it does capture most of the boot
43 netconsole=[+][r][src-port]@[src-ip]/[<dev>],[tgt-port]@<tgt-ip>/[tgt-macaddr]
48 src-port source for UDP packets (defaults to 6665)
49 src-ip source IP to use (interface address)
51 tgt-port port for logging agent (6666)
52 tgt-ip IP address for logging agent
53 tgt-macaddr ethernet MAC address for logging agent (broadcast)
77 Built-in netconsole starts immediately after the TCP stack is
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/linux/arch/arm/boot/dts/marvell/
H A Dkirkwood-linkstation.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
12 stdout-path = &uart0;
16 pinctrl: pin-controller@10000 {
17 pmx_power_hdd0: pmx-power-hdd0 {
20 pmx_usb_vbus: pmx-usb-vbus {
23 pmx_led_alarm: pmx-led-alarm {
26 pmx_led_function_red: pmx-led-function-red {
29 pmx_led_function_blue: pmx-led-function-blue {
32 pmx_led_info: pmx-led-info {
35 pmx_led_power: pmx-led-power {
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H A Dorion5x-lacie-d2-network.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2014 Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
7 /dts-v1/;
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/input/input.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include "orion5x-mv88f5182.dtsi"
16 compatible = "lacie,d2-network", "marvell,orion5x-88f5182", "marvell,orion5x";
25 stdout-path = &uart0;
34 gpio-keys {
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H A Dkirkwood-lsxl.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 #include "kirkwood-6281.dtsi"
8 stdout-path = &uart0;
12 pinctrl: pin-controller@10000 {
13 /* Non-default UART pins */
14 pmx_uart0: pmx-uart0 {
18 pmx_power_hdd: pmx-power-hdd {
22 pmx_usb_vbus: pmx-usb-vbus {
26 pmx_fan_high: pmx-fan-high {
30 pmx_fan_low: pmx-fan-low {
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H A Dkirkwood-netxbig.dtsi1 // SPDX-License-Identifier: GPL-2.0
9 * Based on netxbig_v2-setup.c,
14 #include <dt-bindings/leds/leds-netxbig.h>
16 #include "kirkwood-6281.dtsi"
21 stdout-path = &uart0;
33 #address-cells = <1>;
34 #size-cells = <1>;
35 compatible = "mxicy,mx25l4005a", "jedec,spi-nor";
37 spi-max-frequency = <20000000>;
42 label = "u-boot";
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/linux/Documentation/ABI/testing/
H A Dsysfs-kernel-mm-mempolicy-weighted-interleave3 Contact: Linux memory management mailing list <linux-mm@kvack.org>
8 Contact: Linux memory management mailing list <linux-mm@kvack.org>
24 empty string, ...) will return -EINVAL.
29 What: /sys/kernel/mm/mempolicy/weighted_interleave/auto
31 Contact: Linux memory management mailing list <linux-mm@kvack.org>
32 Description: Auto-weighting configuration interface
35 that the system is in auto mode, and a 'false' indicates that
38 In auto mode, all node weights are re-calculated and overwritten
40 is made available during either boot or hotplug events.
48 Writing any true value string (e.g. Y or 1) will enable auto
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/linux/Documentation/devicetree/bindings/mfd/
H A Dams,as3711.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
15 two step-up DC/DC converters are defined.
26 Step-up converter configuration, to be used as a backlight source
31 const: ams,as3711-bl
33 su1-dev:
34 description: Framebuffer phandle for the first step-up converter
37 su1-max-uA:
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/linux/include/dt-bindings/soc/
H A Dsamsung,boot-mode.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
6 * Device Tree bindings for Samsung Boot Mode.
12 /* Boot mode definitions for Exynos Auto v9 SoC */
/linux/scripts/package/
H A Dbuildtar2 # SPDX-License-Identifier: GPL-2.0
7 # (C) 2004-2006 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
14 set -eu
22 # Clean-up and re-create the temporary directory
24 rm -rf -- "${tmpdir}"
25 mkdir -p -- "${tmpdir}/boot"
31 if grep -q '^CONFIG_OF_EARLY_FLATTREE=y' include/config/auto.conf; then
33 if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
34 …$MAKE ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_DTBS_PATH="${tmpdir}/boot/dtbs/${KERNELRELEASE…
42 make ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_MOD_PATH="${tmpdir}" modules_install
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/linux/Documentation/networking/device_drivers/ethernet/cirrus/
H A Dcs89x0.rst1 .. SPDX-License-Identifier: GPL-2.0
33 2.1 CS8900-based Adapter Configuration
34 2.2 CS8920-based Adapter Configuration
46 5.2.1 Diagnostic Self-Test
56 6.5 Kernel boot parameters
66 The CS8900-based ISA Ethernet Adapters from Cirrus Logic follow
67 IEEE 802.3 standards and support half or full-duplex operation in ISA bus
69 in 16-bit ISA or EISA bus expansion slots and are available in
70 10BaseT-only or 3-media configurations (10BaseT, 10Base2, and AUI for 10Base-5
73 CS8920-based adapters are similar to the CS8900-based adapter with additional
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/linux/Documentation/admin-guide/
H A Dkernel-parameters.txt5 avoid prolonged boot times. The lazy option will add
10 at once during boot.
16 force -- enable ACPI if default was off
17 on -- enable ACPI but allow fallback to DT [arm64,riscv64]
18 off -- disable ACPI if default was on
19 noirq -- do not use ACPI for IRQ routing
20 strict -- Be less tolerant of platforms that are not
22 rsdt -- prefer RSDT over (default) XSDT
23 copy_dsdt -- copy DSDT to memory
24 nocmcff -- Disable firmware first mode for corrected
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H A Dinitrd.rst8 initrd provides the capability to load a RAM disk by the boot loader.
15 where the kernel comes up with a minimum set of compiled-in drivers, and
19 discussion of the boot process can be found in [#f1]_.
23 ---------
27 1) the boot loader loads the kernel and the initial RAM disk
42 the usual boot sequence
51 Boot command-line options
52 -------------------------
70 Note: /dev/initrd is read-only and it can only be used once. As soon
76 initrd is mounted as root, and the normal boot procedure is followed,
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/linux/Documentation/devicetree/bindings/regulator/
H A Drichtek,rt5190a-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rt5190a-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
23 - richtek,rt5190a
31 vin2-supply:
34 vin3-supply:
37 vin4-supply:
40 vinldo-supply:
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H A Drichtek,rt5759-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rt5759-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RT5759 is a high-performance, synchronous step-down DC-DC converter that
15 voltage can be programmable with I2C controlled 7-Bit VID.
18 https://www.richtek.com/assets/product_file/RT5759/DS5759-00.pdf
23 - richtek,rt5759
24 - richtek,rt5759a
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H A Dnxp,pca9450-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/nxp,pca9450-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Robin Gong <yibin.gong@nxp.com>
18 https://www.nxp.com/docs/en/data-sheet/PCA9450DS.pdf
21 https://www.nxp.com/docs/en/data-sheet/PF9453_SDS.pdf
31 - nxp,pca9450a
32 - nxp,pca9450b
33 - nxp,pca9450c
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/linux/drivers/remoteproc/
H A Domap_remoteproc.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2011-2020 Texas Instruments Incorporated - http://www.ti.com/
8 * Ohad Ben-Cohen <ohad@wizery.com>
12 * Suman Anna <s-anna@ti.com>
13 * Hari Kanigeri <h-kanigeri2@ti.com>
27 #include <linux/dma-mapping.h>
31 #include <linux/omap-iommu.h>
32 #include <linux/omap-mailbox.h>
36 #include <clocksource/timer-ti-dm.h>
38 #include <linux/platform_data/dmtimer-omap.h>
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/linux/Documentation/networking/device_drivers/ethernet/netronome/
H A Dnfp.rst1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
14 - `Overview`_
15 - `Acquiring Firmware`_
16 - `Devlink Info`_
17 - `Configure Device`_
18 - `Statistics`_
25 are also incorporated in the companies' family of Agilio SmartNICs. The SR-IOV
35 Firmware files on the host filesystem contain card type (`AMDA-*` string), media
40 `linux-firmware.git` repository.
46 -----------------
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/linux/Documentation/driver-api/cxl/linux/
H A Doverview.rst1 .. SPDX-License-Identifier: GPL-2.0
7 This section presents the configuration process of a CXL Type-3 memory device,
14 1) Early Boot
16 a) BIOS, Build, and Boot Parameters
25 i) EFI Memory Map / E820 Consulted for Soft-Reserved
29 * Soft-Reserved IO Resource created for CFMWS entry
66 * If auto-decoder (BIOS-programmed decoders), driver validates
69 * If user-configured, validation and associations are built at
70 decoder-commit time.
82 * kmem - dax device is converted to hotplug memory blocks
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H A Dcxl-driver.rst1 .. SPDX-License-Identifier: GPL-2.0
12 The :code:`cxl-cli` library, maintained as part of the NDTCL project, may
19 * cxl_core - fundamental init interface and core object creation
20 * cxl_port - initializes root and provides port enumeration interface.
21 * cxl_acpi - initializes root decoders and interacts with ACPI data.
22 * cxl_p/mem - initializes memory devices
23 * cxl_pci - uses cxl_port to enumerate the actual fabric hierarchy.
27 Here is an example from a single-socket system with 4 host bridges. Two host
38 .. kernel-render:: DOT
39 :alt: Digraph of CXL fabric describing host-bridge interleaving
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/linux/Documentation/fb/
H A Dgxfb.rst2 gxfb - AMD Geode GX2 framebuffer driver
14 * Most important: boot logo :-)
24 Switching modes is done using gxfb.mode_option=<resolution>... boot
34 XF68_FBDev should generally work fine, but it is non-accelerated.
46 <x>x<y>[-<bpp>][@<refresh>]
47 vram size of video ram (normally auto-detected)
H A Dlxfb.rst2 lxfb - AMD Geode LX framebuffer driver
14 * Most important: boot logo :-)
24 Switching modes is done using lxfb.mode_option=<resolution>... boot
34 XF68_FBDev should generally work fine, but it is non-accelerated.
46 <x>x<y>[-<bpp>][@<refresh>]
47 vram size of video ram (normally auto-detected)
/linux/tools/hv/
H A Dhv_set_ifconfig.sh2 # SPDX-License-Identifier: GPL-2.0
26 # or "none" if no boot-time protocol should be used)
47 # mac-address=macaddr
49 # interface-name=interface name
52 # method=<protocol> (where <protocol> is "auto" if DHCP is configured
53 # or "manual" if no boot-time protocol should be used)
82 cp $1 /etc/sysconfig/network-scripts/
85 interface=$(echo $2 | awk -F - '{ print $2 }')
88 sed '/\[connection\]/a autoconnect=true' $2 > /etc/NetworkManager/system-connections/${filename}
/linux/arch/arm/boot/dts/nvidia/
H A Dtegra30-asus-tf600t.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/input/gpio-keys.h>
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/thermal/thermal.h>
10 #include "tegra30-cpu-opp.dtsi"
11 #include "tegra30-cpu-opp-microvolt.dtsi"
16 chassis-type = "convertible";
34 * pre-existing /chosen node to be available to insert the
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dadi,ltc4282.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nuno Sa <nuno.sa@analog.com>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
20 - adi,ltc4282
25 vdd-supply: true
30 '#clock-cells':
33 adi,rsense-nano-ohms:
36 adi,vin-mode-microvolt:
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