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| /Documentation/core-api/ |
| D | local_ops.rst | 5 Semantics and Behavior of Local Atomic Operations
11 This document explains the purpose of the local atomic operations, how
14 those local variables across CPUs when the order of memory writes matters.
26 Purpose of local atomic operations
29 Local atomic operations are meant to provide fast and highly reentrant per CPU
39 Local atomic operations only guarantee variable modification atomicity wrt the
54 ``asm-generic/local.h`` in your architecture's ``local.h`` is sufficient.
63 Rules to follow when using local atomic operations
66 * Variables touched by local ops must be per cpu variables.
68 * This CPU can use local ops from any context (process, irq, softirq, nmi, ...)
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| /Documentation/devicetree/bindings/timer/ |
| D | samsung,exynos4210-mct.yaml | 14 global timer and CPU local timers. The global timer is a 64-bit free running
16 four preset counter values. The CPU local timers are 32-bit free running
18 one CPU local timer instantiated in MCT for every CPU in the system.
56 samsung,local-timers:
61 List of indices of local timers usable from this processor.
65 Interrupts should be put in specific order. This is, the local timer
72 4: Local Timer Interrupt 0
73 5: Local Timer Interrupt 1
76 i: Local Timer Interrupt n
77 For MCT block that uses a per-processor interrupt for local timers, such
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| /Documentation/bpf/ |
| D | map_cgrp_storage.rst | 8 The ``BPF_MAP_TYPE_CGRP_STORAGE`` map type represents a local fix-sized
26 a new local storage will be created if one does not exist.
28 The local storage can be removed with ``bpf_cgrp_storage_delete``::
91 (2). ``BPF_MAP_TYPE_CGRP_STORAGE`` supports local storage for more than one
95 (3). ``BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED`` allocates local storage at attach time so
96 ``bpf_get_local_storage()`` always returns non-NULL local storage.
97 ``BPF_MAP_TYPE_CGRP_STORAGE`` allocates local storage at runtime so
98 it is possible that ``bpf_cgrp_storage_get()`` may return null local storage.
99 To avoid such null local storage issue, user space can do
100 ``bpf_map_update_elem()`` to pre-allocate local storage before a BPF program
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| D | map_sk_storage.rst | 11 ``BPF_MAP_TYPE_SK_STORAGE`` is used to provide socket-local storage for BPF
13 to be provided and acts as the handle for accessing the socket-local
22 socket-local storage.
37 Socket-local storage for ``map`` can be retrieved from socket ``sk`` using the
56 Socket-local storage for ``map`` can be deleted from socket ``sk`` using the
70 Socket-local storage for map ``map_fd`` can be added or updated locally to a
94 Socket-local storage for map ``map_fd`` can be retrieved from a socket using
106 Socket-local storage for map ``map_fd`` can be deleted from a socket using the
117 This snippet shows how to declare socket-local storage in a BPF program:
128 This snippet shows how to retrieve socket-local storage in a BPF program:
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| /Documentation/ABI/testing/ |
| D | sysfs-bus-iio-frequency-admv1013 | 5 Read/write unscaled value for the Local Oscillatior path quadrature I phase shift.
11 Read/write unscaled value for the Local Oscillatior path quadrature Q phase shift.
17 Read/write value for the Local Oscillatior Feedthrough Offset Calibration I Positive
24 Read/write value for the Local Oscillatior Feedthrough Offset Calibration Q Positive side.
30 Read/write raw value for the Local Oscillatior Feedthrough Offset Calibration I Negative
37 Read/write raw value for the Local Oscillatior Feedthrough Offset Calibration Q Negative
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| D | sysfs-bus-rpmsg | 19 processor. Channels have a local ("source") rpmsg address,
26 This sysfs entry contains the src (local) rpmsg address
37 processor. Channels have a local ("source") rpmsg address,
48 remote processor. This make it a local rpmsg server,
60 /sys/bus/rpmsg/devices/.../name above) and have a local
64 A channel is first created when an entity, whether local
73 This sysfs entry tells us whether the channel is a local
84 /sys/bus/rpmsg/devices/.../name above) and have a local
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| /Documentation/ABI/stable/ |
| D | firewire-cdev | 15 be remote or local nodes. Operations on a /dev/fw* file have
24 and local node
34 - Query node IDs of local node, root node, IRM, bus
41 - Allocation of IEEE 1212 address ranges on the local
45 - Addition of descriptors or directories to the local
51 with a local node:
53 - Addition of descriptors or directories to the local
103 with the file descriptor, back out any changes to the local
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| /Documentation/translations/zh_CN/core-api/ |
| D | local_ops.rst | 51 UP之间没有不同的行为，在你的架构的 ``local.h`` 中包括 ``asm-generic/local.h``
91 #include <asm/local.h>
131 下面是一个使用 ``local.h`` 实现每个cpu基本计数器的示例模块::
133 /* test-local.c
135 * Sample module for local.h usage.
139 #include <asm/local.h>
196 MODULE_DESCRIPTION("Local Atomic Ops");
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| /Documentation/scheduler/ |
| D | sched-ext.rst | 70 local=0 global=3
71 local=5 global=24
72 local=9 global=44
73 local=13 global=56
74 local=17 global=72
201 and one local dsq per CPU (``SCX_DSQ_LOCAL``). The BPF scheduler can manage
205 A CPU always executes a task from its local DSQ. A task is "dispatched" to a
206 DSQ. A non-local DSQ is "consumed" to transfer a task to the consuming CPU's
207 local DSQ.
209 When a CPU is looking for the next task to run, if the local DSQ is not
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| /Documentation/driver-api/mei/ |
| D | iamt.rst | 36 1) Intel Local Management Service (Intel LMS)
42 local application using the same network interface as a remote application
45 When a local application sends a message addressed to the local Intel AMT host
50 Under "About Intel AMT" => "Local Access"
67 2) Intel AMT Remote configuration using a Local Agent
69 A Local Agent enables IT personnel to configure Intel AMT out-of-the-box
77 "Using the Local Agent Sample"
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| /Documentation/mm/ |
| D | numa.rst | 12 or more CPUs, local memory, and/or IO buses. For brevity and to
41 [cache misses] to be to "local" memory--memory on the same cell, if any--or
59 a given node will see the same local memory access times and bandwidth.
90 for the node where the request originates. This is called "local allocation."
91 If the "local" node cannot satisfy the request, the kernel will examine other
95 Local allocation will tend to keep subsequent access to the allocated memory
96 "local" to the underlying physical resources and off the system interconnect--
109 sched_setaffinity(2). Further, one can modify the kernel's default local
119 node the "local memory node"--the node of the first zone in CPU's node's
122 So, default, local allocations will succeed with the kernel supplying the
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| /Documentation/devicetree/bindings/iommu/ |
| D | mediatek,iommu.yaml | 26 gals0-rx gals1-rx (Global Async Local Sync rx)
29 gals0-tx gals1-tx (Global Async Local Sync tx)
42 SMI larb0 SMI larb1 ... SoCs have several SMI local arbiter(larb).
54 smi local arbiter and smi common. It will control whether the Multimedia
57 each local arbiter.
59 Normally we specify a local arbiter(larb) for each multimedia HW
62 video decode local arbiter, all these ports are according to the video HW.
64 In some SoCs, there may be a GALS(Global Async Local Sync) module between
120 List of phandle to the local arbiters in the current Socs.
122 according to the local arbiter index, like larb0, larb1, larb2...
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| /Documentation/devicetree/bindings/iio/frequency/ |
| D | adi,adrf6780.yaml | 49 Local Oscillator Amplifier Enable. Disable to put the part in
67 Double the Local Oscillator output frequency from the Local
74 Local Oscillator input frequency equal to the Local Oscillator
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| /Documentation/hwmon/ |
| D | w83773g.rst | 22 chip. This chip implements one local and two remote sensors.
28 range of -40 to +125 degrees Celsius (for local sensor) and -40 to +127
30 Resolution for both the local and remote channels is 0.125 degree C.
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| D | max1668.rst | 34 temp1_input ro local (ambient) temperature
35 temp1_max rw local temperature maximum threshold for alarm
36 temp1_max_alarm ro local temperature maximum threshold alarm
37 temp1_min rw local temperature minimum threshold for alarm
38 temp1_min_alarm ro local temperature minimum threshold alarm
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| /Documentation/devicetree/bindings/soc/qcom/ |
| D | qcom,smp2p.yaml | 17 writer (the local side) and a single reader (the remote side). Values are
18 uniquely identified in the system by the directed edge (local processor ID to
46 qcom,local-pid:
49 The identifier of the local endpoint of this edge.
109 - qcom,local-pid
133 qcom,local-pid = <0>;
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| D | qcom,smsm.yaml | 28 qcom,local-host:
32 Identifier of the local processor in the list of hosts, or in other words
33 specifier of the column in the subscription matrix representing the local
65 remote processor's state bits or the local processors bits. The node
90 Required for local entry. Denotes bit number.
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| /Documentation/devicetree/bindings/interrupt-controller/ |
| D | intel,ce4100-lapic.yaml | 7 title: Intel Local Advanced Programmable Interrupt Controller (LAPIC)
15 architecture design, with a local component (LAPIC) integrated
16 into the processor itself and an external I/O APIC. Local APIC
26 This schema defines bindings for local APIC interrupt controller.
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| /Documentation/devicetree/bindings/net/ |
| D | cavium-pip.txt | 63 local-mac-address = [ 00 0f b7 10 63 60 ];
69 local-mac-address = [ 00 0f b7 10 63 61 ];
75 local-mac-address = [ 00 0f b7 10 63 62 ];
81 local-mac-address = [ 00 0f b7 10 63 63 ];
95 local-mac-address = [ 00 0f b7 10 63 64 ];
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| /Documentation/devicetree/bindings/powerpc/fsl/ |
| D | mcm.txt | 6 Local Access Window (LAW) Node
8 The LAW node represents the region of CCSR space where local access
11 number of local access windows as specified by fsl,num-laws.
30 Definition: The value specifies the number of local access
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| D | ecm.txt | 6 Local Access Window (LAW) Node
8 The LAW node represents the region of CCSR space where local access
11 number of local access windows as specified by fsl,num-laws.
30 Definition: The value specifies the number of local access
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| /Documentation/fb/ |
| D | cmap_xfbdev.rst | 45 dr = (long) pent->co.local.red - prgb->red;
46 dg = (long) pent->co.local.green - prgb->green;
47 db = (long) pent->co.local.blue - prgb->blue;
52 co.local.red are entries that were brought in through FBIOGETCMAP which come
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| /Documentation/driver-api/ |
| D | ntb.rst | 42 inbound translation configured on the local ntb port and outbound translation
48 Memory: Local NTB Port: Peer NTB Port: Peer MMIO:
66 Memory: Local NTB Port: Peer NTB Port: Peer MMIO:
81 Local device:
84 (it may fail if local memory window initialization is unsupported)
96 Local device:
98 be allocated for memory windows between local device and peer device
107 (it may fail if local translated address setting is not supported)
144 and interrupt vectors. The Ping Pong driver also reads the first local
179 This file is used to read, set, and clear the local doorbell. Not
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| /Documentation/devicetree/bindings/clock/ti/davinci/ |
| D | psc.txt | 21 at least one local domain provides a local reset.
25 Clock, power domain and reset consumers shall use the local power domain
27 the device-specific datasheet to find these numbers. NB: Most local
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| /Documentation/admin-guide/mm/ |
| D | numaperf.rst | 17 CPUs, they may still be local to one or more compute nodes relative to
19 nodes with local memory and a memory only node for each of compute node::
23 | Local Node0 Mem | | Local Node1 Mem |
39 is considered to be one of that target's local initiators, and given
41 local initiators, and any given initiator may have multiple local
79 The performance characteristics the kernel provides for the local initiators
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