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/Documentation/devicetree/bindings/riscv/
Dcpus.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V bindings for 'cpus' DT nodes
10 - Paul Walmsley <paul.walmsley@sifive.com>
11 - Palmer Dabbelt <palmer@sifive.com>
14 This document uses some terminology common to the RISC-V community
18 mandated by the RISC-V ISA: a PC and some registers. This
28 - items:
29 - enum:
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/Documentation/x86/
Dpti.rst1 .. SPDX-License-Identifier: GPL-2.0
27 This approach helps to ensure that side-channel attacks leveraging
30 Once enabled at compile-time, it can be disabled at boot with the
31 'nopti' or 'pti=' kernel parameters (see kernel-parameters.txt).
36 When PTI is enabled, the kernel manages two sets of page tables.
43 that any missed kernel->user CR3 switch will immediately crash
49 each CPU's copy of the area a compile-time-fixed virtual address.
65 Protection against side-channel attacks is important. But,
70 a. Each process now needs an order-1 PGD instead of order-0.
86 non-PTI SYSCALL entry code, so requires mapping fewer
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/Documentation/networking/
Dbonding.txt7 Corrections, HA extensions : 2000/10/03-15 :
8 - Willy Tarreau <willy at meta-x.org>
9 - Constantine Gavrilov <const-g at xpert.com>
10 - Chad N. Tindel <ctindel at ieee dot org>
11 - Janice Girouard <girouard at us dot ibm dot com>
12 - Jay Vosburgh <fubar at us dot ibm dot com>
16 - Mitch Williams <mitch.a.williams at intel.com>
29 the original tools from extreme-linux and beowulf sites will not work
114 -----------------------------------------------
130 -------------------------------------
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/Documentation/admin-guide/
Dsysrq.rst22 - 0 - disable sysrq completely
23 - 1 - enable all functions of sysrq
24 - >1 - bitmask of allowed sysrq functions (see below for detailed function
27 2 = 0x2 - enable control of console logging level
28 4 = 0x4 - enable control of keyboard (SAK, unraw)
29 8 = 0x8 - enable debugging dumps of processes etc.
30 16 = 0x10 - enable sync command
31 32 = 0x20 - enable remount read-only
32 64 = 0x40 - enable signalling of processes (term, kill, oom-kill)
33 128 = 0x80 - allow reboot/poweroff
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Dkernel-parameters.txt5 force -- enable ACPI if default was off
6 on -- enable ACPI but allow fallback to DT [arm64]
7 off -- disable ACPI if default was on
8 noirq -- do not use ACPI for IRQ routing
9 strict -- Be less tolerant of platforms that are not
11 rsdt -- prefer RSDT over (default) XSDT
12 copy_dsdt -- copy DSDT to memory
56 Documentation/firmware-guide/acpi/debug.rst for more information about
119 Disable auto-serialization of AML methods
122 auto-serialization feature.
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/Documentation/
DDMA-API-HOWTO.txt10 with example pseudo-code. For a concise description of the API, see
11 DMA-API.txt.
23 The virtual memory system (TLB, page tables, etc.) translates virtual
39 supports 64-bit addresses for main memory and PCI BARs, it may use an IOMMU
40 so devices only need to use 32-bit DMA addresses.
49 +-------+ +------+ +------+
52 C +-------+ --------> B +------+ ----------> +------+ A
54 +-----+ | | | | bridge | | +--------+
55 | | | | +------+ | | | |
58 +-----+ +-------+ +------+ +------+ +--------+
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/Documentation/RCU/
DRTFP.txt4 This document describes RCU-related publications, and is followed by
19 with short-lived threads, such as the K42 research operating system.
20 However, Linux has long-lived tasks, so more is needed.
23 serialization, which is an RCU-like mechanism that relies on the presence
27 that these overheads were not so expensive in the mid-80s. Nonetheless,
28 passive serialization appears to be the first deferred-destruction
30 has lapsed, so this approach may be used in non-GPL software, if desired.
34 In 1987, Rashid et al. described lazy TLB-flush [RichardRashid87a].
36 this paper helped inspire the update-side batching used in the later
38 a description of Argus that noted that use of out-of-date values can
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