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/Documentation/devicetree/bindings/timer/
Dti,timer-dm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/timer/ti,timer-dm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI dual-mode timer
10 - Tony Lindgren <tony@atomide.com>
13 The TI dual-mode timer is a general purpose timer with PWM capabilities.
18 - items:
19 - enum:
20 - ti,am335x-timer
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Darm,arch_timer.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/timer/arm,arch_timer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ARM architected timer
10 - Marc Zyngier <marc.zyngier@arm.com>
11 - Mark Rutland <mark.rutland@arm.com>
13 ARM cores may have a per-core architected timer, which provides per-cpu timers,
14 or a memory mapped architected timer, which provides up to 8 frames with a
15 physical and optional virtual timer per frame.
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/Documentation/devicetree/bindings/arm/
Datmel-sysregs.txt4 - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
5 - reg : Should contain registers location and length
7 PIT Timer required properties:
8 - compatible: Should be "atmel,at91sam9260-pit"
9 - reg: Should contain registers location and length
10 - interrupts: Should contain interrupt for the PIT which is the IRQ line
13 PIT64B Timer required properties:
14 - compatible: Should be "microchip,sam9x60-pit64b" or
15 "microchip,sam9x7-pit64b", "microchip,sam9x60-pit64b"
16 - reg: Should contain registers location and length
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/Documentation/devicetree/bindings/rtc/
Damlogic,meson-vrtc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/rtc/amlogic,meson-vrtc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Neil Armstrong <neil.armstrong@linaro.org>
17 application processors (AP) and the secure co-processor (SCP.) When
19 program an always-on timer before going sleep. When the timer expires,
23 - $ref: rtc.yaml#
28 - amlogic,meson-vrtc
34 - compatible
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/Documentation/devicetree/bindings/watchdog/
Dintel,keembay-wdt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/watchdog/intel,keembay-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Intel Keem Bay SoC non-secure Watchdog Timer
10 - Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
13 - $ref: watchdog.yaml#
18 - intel,keembay-wdt
28 - description: interrupt specifier for threshold interrupt line
29 - description: interrupt specifier for timeout interrupt line
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/Documentation/arch/x86/x86_64/
Dboot-options.rst1 .. SPDX-License-Identifier: GPL-2.0
30 Disable features for corrected errors, e.g. polling timer
39 Do not opt-in to Local MCE delivery. Use legacy method
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
91 Don't check the IO-APIC timer. This can work around
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/Documentation/virt/geniezone/
Dintroduction.rst1 .. SPDX-License-Identifier: GPL-2.0
9 GenieZone hypervisor (gzvm) is a type-I hypervisor that supports various virtual
10 machine types and provides security features such as TEE-like scenarios and
11 secure boot. It can create guest VMs for security use cases and has
15 kernel for vCPU scheduling, memory management, inter-VM communication and virtio
25 - vCPU Management
31 - Memory Management
38 - Virtual Platform
41 guest VM. The platform supports various architecture-defined devices, such as
42 virtual arch timer, GIC, MMIO, PSCI, and exception watching...etc.
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/Documentation/arch/arm64/
Dbooting.rst13 (EL0 - EL3), with EL0, EL1 and EL2 having a secure and a non-secure
15 level and exists only in secure mode. Both are architecturally optional.
19 is passed to the Linux kernel. This may include secure monitor and
33 ---------------------------
46 -------------------------
50 The device tree blob (dtb) must be placed on an 8-byte boundary and must
59 ------------------------------
71 ------------------------
75 The decompressed kernel image contains a 64-byte header as follows::
91 - As of v3.17, all fields are little endian unless stated otherwise.
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/Documentation/arch/parisc/
Dregisters.rst2 Register Usage for Linux/PA-RISC
11 -----------------
15 CR 1-CR 7(undefined) unused
16 CR 8 (Protection ID) per-process value*
22 CR16 (Interval Timer) read for cycle count/write starts Interval Tmr
23 CR17-CR22 interruption parameters
40 -----------------------------
44 SR4-SR7 set to 0
51 ---------------------------
58 SR4-SR7 Defines short address space for user/kernel
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/Documentation/devicetree/bindings/display/msm/
Dgpu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Rob Clark <robdclark@gmail.com>
14 # as a work-around:
20 - qcom,adreno
21 - amd,imageon
23 - compatible
28 - description: |
30 figure out the chip-id.
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/Documentation/netlink/specs/
Drt_link.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 name: rt-link
4 protocol: netlink-raw
11 -
12 name: ifinfo-flags
15 -
17 -
19 -
21 -
23 -
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/Documentation/virt/kvm/
Dapi.rst1 .. SPDX-License-Identifier: GPL-2.0
4 The Definitive KVM (Kernel-based Virtual Machine) API Documentation
13 - System ioctls: These query and set global attributes which affect the
17 - VM ioctls: These query and set attributes that affect an entire virtual
24 - vcpu ioctls: These query and set attributes that control the operation
32 - device ioctls: These query and set attributes that control the operation
80 facility that allows backward-compatible extensions to the API to be
104 the ioctl returns -ENOTTY.
122 -----------------------
139 -----------------
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/Documentation/admin-guide/
Dkernel-parameters.txt16 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 nospcr -- disable console in ACPI SPCR table as
41 If set to vendor, prefer vendor-specific driver
73 Documentation/firmware-guide/acpi/debug.rst for more information about
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Ddevices.txt1 0 Unnamed devices (e.g. non-device mounts)
7 2 = /dev/kmem OBSOLETE - replaced by /proc/kcore
11 6 = /dev/core OBSOLETE - replaced by /proc/kcore
14 9 = /dev/urandom Faster, less secure random number gen.
18 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore
31 2 char Pseudo-TTY masters
37 Pseudo-tty's are named as follows:
40 the 1st through 16th series of 16 pseudo-ttys each, and
44 These are the old-style (BSD) PTY devices; Unix98
106 3 char Pseudo-TTY slaves
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/Documentation/networking/
Dip-sysctl.rst1 .. SPDX-License-Identifier: GPL-2.0
10 ip_forward - BOOLEAN
11 - 0 - disabled (default)
12 - not 0 - enabled
20 ip_default_ttl - INTEGER
25 ip_no_pmtu_disc - INTEGER
27 fragmentation-required ICMP is received, the PMTU to this
38 accept fragmentation-needed errors if the underlying protocol
43 only intended to secure e.g. name servers in namespaces where
48 Possible values: 0-3
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/Documentation/admin-guide/sysctl/
Dkernel.rst5 .. See scripts/check-sysctl-docs to keep this up to date
13 Documentation/admin-guide/sysctl/index.rst.
15 ------------------------------------------------------------------------------
39 If BSD-style process accounting is enabled these values control
71 The machine hardware name, the same output as ``uname -m``
129 Ctrl-Alt-Delete). Writing a value to this file which doesn't
130 correspond to a running process will result in ``-ESRCH``.
132 See also `ctrl-alt-del`_.
236 ctrl-alt-del
239 When the value in this file is 0, ctrl-alt-del is trapped and
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/Documentation/ABI/testing/
Dsysfs-driver-ufs3 Contact: linux-scsi@vger.kernel.org
5 This file contains the auto-hibernate idle timer setting of a
6 UFS host controller. A value of '0' means auto-hibernate is not
11 10-bit values with a power-of-ten multiplier which allows a
125 Description: This file shows the secure removal type. This is one of
261 Description: This file shows number of secure write protect areas
273 written during the pre-soldering phase of the PSA flow.
307 Description: This file shows the MIPI M-PHY version number in BCD format.
395 Description: This file shows the maximum data-in buffer size. This
406 Description: This file shows the maximum data-out buffer size. This
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