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/linux-6.12.1/Documentation/trace/
Ddebugging.rst11 - Written for: 6.12
14 ------------
21 $ sudo mount -t tracefs tracefs /sys/kernel/tracing
25 --------------------
57 ------------------------
61 It can be very useful in knowing what happened up to the point of the crash.
64 the ring buffer will be all the events that lead up to the crash.
76 Note, the tracing buffer is made up of per CPU buffers where each of these
77 buffers is broken up into sub-buffers that are by default PAGE_SIZE. The
82 -------------------------------
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/linux-6.12.1/Documentation/power/
Dswsusp-dmcrypt.rst2 How to use dm-crypt and swsusp together
10 You know how dm-crypt works. If not, visit the following web page:
11 http://www.saout.de/misc/dm-crypt/
13 You did read Documentation/admin-guide/initrd.rst and know how an initrd works.
16 Now your system is properly set up, your disk is encrypted except for
17 the swap device(s) and the boot partition which may contain a mini
26 up dm-crypt and then asks swsusp to resume from the encrypted
29 The most important thing is that you set up dm-crypt in such
33 to always set up this swap device first with dmsetup, so that
36 brw------- 1 root root 254, 0 Jul 28 13:37 /dev/mapper/swap0
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/linux-6.12.1/arch/arm/mach-tegra/
Dplatsmp.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-tegra/platsmp.c
26 #include <asm/mach-types.h>
50 * power-gated via the flow controller). This will have no in tegra20_boot_secondary()
51 * effect on first boot of the CPU since it should already be in tegra20_boot_secondary()
58 * power-gate the CPU this will cause the flow controller to in tegra20_boot_secondary()
80 * The power up sequence of cold boot CPU and warm boot CPU in tegra30_boot_secondary()
83 * For warm boot CPU that was resumed from CPU hotplug, the in tegra30_boot_secondary()
84 * power will be resumed automatically after un-halting the in tegra30_boot_secondary()
85 * flow controller of the warm boot CPU. We need to wait for in tegra30_boot_secondary()
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/linux-6.12.1/scripts/package/
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-6.12.1/arch/arm/boot/dts/ti/omap/
Dam5729-beagleboneai.dts1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2014-2019 Texas Instruments Incorporated - https://www.ti.com/
6 /dts-v1/;
9 #include "am57xx-commercial-grade.dtsi"
10 #include "dra74x-mmc-iodelay.dtsi"
11 #include "dra74-ipu-dsp-common.dtsi"
12 #include <dt-bindings/gpio/gpio.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
14 #include <dt-bindings/pinctrl/dra.h>
18 compatible = "beagle,am5729-beagleboneai", "ti,am5728",
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/linux-6.12.1/arch/arm64/boot/dts/rockchip/
Drk3308-evb.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
7 /dts-v1/;
8 #include <dt-bindings/input/input.h>
13 compatible = "rockchip,rk3308-evb", "rockchip,rk3308";
16 stdout-path = "serial4:1500000n8";
19 adc-keys0 {
20 compatible = "adc-keys";
21 io-channels = <&saradc 0>;
22 io-channel-names = "buttons";
23 poll-interval = <100>;
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/linux-6.12.1/arch/arm/boot/dts/qcom/
Dqcom-msm8974pro-sony-xperia-shinano-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 #include "qcom-msm8974pro.dtsi"
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
18 stdout-path = "serial0:115200n8";
21 gpio-keys {
22 compatible = "gpio-keys";
24 pinctrl-0 = <&gpio_keys_pin_a>;
25 pinctrl-names = "default";
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Dqcom-msm8974pro-oneplus-bacon.dts1 // SPDX-License-Identifier: GPL-2.0
2 #include "qcom-msm8974pro.dtsi"
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
11 chassis-type = "handset";
12 qcom,msm-id = <194 0x10000>;
13 qcom,board-id = <8 0>;
20 stdout-path = "serial0:115200n8";
23 gpio-keys {
24 compatible = "gpio-keys";
[all …]
Dqcom-msm8974pro-htc-m8.dts1 // SPDX-License-Identifier: GPL-2.0-only
2 #include "qcom-msm8974pro.dtsi"
5 #include <dt-bindings/input/input.h>
10 chassis-type = "handset";
16 gpio-keys {
17 compatible = "gpio-keys";
19 pinctrl-0 = <&gpio_keys_default>;
20 pinctrl-names = "default";
22 key-volume-down {
26 debounce-interval = <20>;
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Dqcom-msm8974pro-fairphone-fp2.dts1 // SPDX-License-Identifier: GPL-2.0
2 #include "qcom-msm8974pro.dtsi"
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
12 chassis-type = "handset";
21 stdout-path = "serial0:115200n8";
24 gpio-keys {
25 compatible = "gpio-keys";
27 pinctrl-names = "default";
[all …]
Dqcom-apq8074-dragonboard.dts1 // SPDX-License-Identifier: GPL-2.0
2 #include <dt-bindings/gpio/gpio.h>
3 #include <dt-bindings/input/input.h>
4 #include <dt-bindings/leds/common.h>
5 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
6 #include "qcom-msm8974.dtsi"
10 /delete-node/ &mpss_region;
14 compatible = "qcom,apq8074-dragonboard", "qcom,apq8074";
23 stdout-path = "serial0:115200n8";
26 gpio-keys {
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/linux-6.12.1/arch/arm/mach-exynos/
Dplatsmp.c1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
5 // Cloned from linux/arch/arm/mach-vexpress/platsmp.c
17 #include <linux/soc/samsung/exynos-regs-pmu.h>
29 /* XXX exynos_pen_release is cargo culted code - DO NOT COPY XXX */
30 volatile int exynos_pen_release = -1;
70 * having been woken up - this shouldn't happen in platform_do_lowpower()
72 * Just note it happening - when we're woken, we can report in platform_do_lowpower()
81 * exynos_cpu_power_down() - power down the specified cpu
109 * exynos_cpu_power_up() - power up the specified cpu
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/linux-6.12.1/Documentation/admin-guide/
Dkernel-parameters.rst3 The kernel's command-line parameters
12 The kernel parses parameters from the kernel command line up to "``--``";
16 Everything after "``--``" is passed as an argument to init.
32 log_buf_len=1M print-fatal-signals=1
36 log-buf-len=1M print_fatal_signals=1
38 Double-quotes can be used to protect spaces in values, e.g.::
43 ----------
52 <cpu number>-<cpu number>
57 <cpu number>,...,<cpu number>-<cpu number>
63 <cpu number>-<cpu number>:<used size>/<group size>
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Dverify-bugs-and-bisect-regressions.rst1 .. SPDX-License-Identifier: (GPL-2.0+ OR CC-BY-4.0)
9 currently supported by developers -- to then explain how to locate the change
22 read and navigate this document -- especially when you want to look something
23 up in the reference section, then jump back to where you left off.
26 https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html
32 over to the* ':ref:`step-by-step guide <introguide_bissbs>`' *below. It utilizes
45 *segment 2*. Then you can submit a preliminary report -- or continue with
47 full-fledged regression report. In the following example 6.0.13 is assumed to be
51 * **Preparations**: set up everything to build your own kernels::
55 # * Ensure Secure Boot permits booting self-compiled Linux kernels.
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/linux-6.12.1/arch/arm/kernel/
Dhyp-stub.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
7 #include <linux/irqchip/arm-gic-v3.h>
12 .arch armv7-a
16 * For the kernel proper, we need to find out the CPU boot mode long after
17 * boot, so we need to store it in a writable variable.
19 * This is not in .bss, because we set it sufficiently early that the boot-time
29 * Save the primary CPU boot mode. Requires 2 scratch registers.
46 cmp \mode, \reg1 @ matches primary CPU boot mode?
48 strne \reg1, [\reg2] @ record what happened and give up
57 * The zImage loader only runs on one CPU, so we don't bother with mult-CPU
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/linux-6.12.1/Documentation/devicetree/bindings/pinctrl/
Dfsl,mxs-pinctrl.txt6 voltage and pull-up.
9 - compatible: "fsl,imx23-pinctrl" or "fsl,imx28-pinctrl"
10 - reg: Should contain the register physical address and length for the
13 Please refer to pinctrl-bindings.txt in this directory for details of the
20 information about pull-up. For this reason, even seemingly boolean values are
26 One is to set up a group of pins for a function, both mux selection and pin
34 particular function, like SSP0 functioning as mmc0-8bit. That said, the
37 "pinctrl-*" phandle in client device node should only have one group node
41 Required subnode-properties:
42 - fsl,pinmux-ids: An integer array. Each integer in the array specify a pin
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/linux-6.12.1/drivers/firmware/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
4 # see Documentation/kbuild/kconfig-language.rst.
19 provides a mechanism for inter-processor communication between SCP
41 tristate "BIOS Enhanced Disk Drive calls determine boot disk"
46 BIOS tries boot from. This information is then exported via sysfs.
48 This option is experimental and is known to fail to boot on some
62 bool "Add firmware-provided memory map to sysfs" if EXPERT
65 Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
66 That memory map is used for example by kexec to set up parameter area
69 See also Documentation/ABI/testing/sysfs-firmware-memmap.
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/linux-6.12.1/Documentation/arch/x86/x86_64/
Dboot-options.rst1 .. SPDX-License-Identifier: GPL-2.0
4 AMD64 Specific Boot Options
39 Do not opt-in to Local MCE delivery. Use legacy method
49 Disable boot machine check logging.
55 Don't overwrite the bios-set CMCI threshold. This boot option
62 Force-enable recoverable machine check code paths
73 Use IO-APIC. Default
76 Don't use the IO-APIC.
85 See Documentation/arch/x86/i386/IO-APIC.rst
88 Don't set up the APIC timer
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/linux-6.12.1/Documentation/arch/x86/
Dboot.rst1 .. SPDX-License-Identifier: GPL-2.0
4 The Linux/x86 Boot Protocol
7 On the x86 platform, the Linux kernel uses a rather complicated boot
12 real-mode DOS as a mainstream operating system.
14 Currently, the following versions of the Linux/x86 boot protocol exist.
22 boot loader and the kernel. setup.S made relocatable,
28 Protocol 2.02 (Kernel 2.4.0-test3-pre3) New command line protocol.
31 safe for systems which use the EBDA from SMM or 32-bit
35 Protocol 2.03 (Kernel 2.4.18-pre1) Explicitly makes the highest possible
44 the boot command line.
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/linux-6.12.1/Documentation/scsi/
Dsym53c8xx_2.rst1 .. SPDX-License-Identifier: GPL-2.0
4 SYM-2 driver
11 95170 DEUIL LA BARRE - FRANCE
15 2004-10-09
38 10. Boot setup commands
54 10.4 SCSI BUS checking boot option
67 This driver supports the whole SYM53C8XX family of PCI-SCSI controllers.
68 It also support the subset of LSI53C10XX PCI-SCSI controllers that are based
72 with the FreeBSD SYM-2 driver. The 'glue' that allows this driver to work
81 - Wolfgang Stanglmeier <wolf@cologne.de>
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/linux-6.12.1/arch/arm64/boot/dts/qcom/
Dqrb2210-rb1.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
6 /dts-v1/;
8 #include <dt-bindings/leds/common.h>
14 compatible = "qcom,qrb2210-rb1", "qcom,qrb2210", "qcom,qcm2290";
23 stdout-path = "serial0:115200n8";
27 clk40M: can-clk {
28 compatible = "fixed-clock";
29 clock-frequency = <40000000>;
30 #clock-cells = <0>;
34 gpio-keys {
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/linux-6.12.1/arch/arm/mach-omap1/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
57 bool "Warn about pins the bootloader didn't set up"
73 intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is
86 timer provides more intra-tick resolution than the 32KHz timer,
90 bool "Enable wake-up events for serial ports"
94 Select this option if you want to have your system wake up
99 bool "Reset unused clocks during boot"
102 Say Y if you want to reset unused clocks during boot.
126 Support for the Palm Tungsten E PDA. To boot the kernel, you'll
136 Support for the Siemens SX1 phone. To boot the kernel,
/linux-6.12.1/arch/x86/kernel/
Dhead_64.S1 /* SPDX-License-Identifier: GPL-2.0 */
3 * linux/arch/x86/kernel/head_64.S -- start in 32bit and switch to 64bit
21 #include <asm/processor-flags.h>
25 #include <asm/nospec-branch.h>
33 * because we need identity-mapped pages.
51 * arch/x86/boot/compressed/head_64.S.
53 * We only come here initially at boot nothing else comes here.
61 /* Set up the stack for verify_cpu() */
85 * be done now, since this also includes setup of the SEV-SNP CPUID table,
114 * For SEV guests: Verify that the C-bit is correct. A malicious
[all …]
/linux-6.12.1/arch/arm64/boot/dts/amlogic/
Dmeson-g12b-odroid-go-ultra.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 /dts-v1/;
8 #include "meson-g12b-s922x.dtsi"
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/leds/common.h>
11 #include <dt-bindings/gpio/meson-g12a-gpio.h>
12 #include <dt-bindings/sound/meson-g12a-toacodec.h>
13 #include <dt-bindings/sound/meson-g12a-tohdmitx.h>
16 compatible = "hardkernel,odroid-go-ultra", "amlogic,s922x", "amlogic,g12b";
17 model = "Hardkernel ODROID-GO-Ultra";
[all …]
/linux-6.12.1/arch/s390/include/asm/
Dsections.h1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <asm-generic/sections.h>
8 * .boot.data section contains variables "shared" between the decompressor and
12 * Each variable end up in its own intermediate section .boot.data.<var name>,
14 * final .boot.data section, which should be identical in the decompressor and
17 #define __bootdata(var) __section(".boot.data." #var) var
20 * .boot.preserved.data is similar to .boot.data, but it is not part of the
24 #define __bootdata_preserved(var) __section(".boot.preserved.data." #var) var

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