| /Linux-v5.10/Documentation/RCU/ |
| D | RTFP.txt | 4 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38 a description of Argus that noted that use of out-of-date values can
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| /Linux-v5.10/arch/arm/include/asm/ |
| D | dma-mapping.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
24 * arm_dma_alloc - allocate consistent memory for DMA
25 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
27 * @handle: bus-specific DMA address
31 * allocates pages, and will return the CPU-viewed address, and sets @handle
32 * to be the device-viewed address.
38 * arm_dma_free - free memory allocated by arm_dma_alloc
39 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
41 * @cpu_addr: CPU-view address returned from dma_alloc_coherent
42 * @handle: device-view address returned from dma_alloc_coherent
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| /Linux-v5.10/tools/perf/Documentation/ |
| D | perf-timechart.txt | 1 perf-timechart(1)
5 ----
6 perf-timechart - Tool to visualize total system behavior during a workload
9 --------
14 -----------
19 and CPU events (task switches, running times, CPU power states, etc),
20 but it's possible to record IO (disk, network) activity using -I argument.
23 that can be viewed with popular SVG viewers such as 'Inkscape'. Depending
24 on the events in the perf.data file, timechart will contain scheduler/cpu
34 -----------------
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| /Linux-v5.10/Documentation/devicetree/bindings/bus/ |
| D | socionext,uniphier-system-bus.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/bus/socionext,uniphier-system-bus.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 The UniPhier System Bus is an external bus that connects on-board devices to
11 the UniPhier SoC. It is a simple (semi-)parallel bus with address, data, and
16 within each bank to the CPU-viewed address. The needed setup includes the
21 - Masahiro Yamada <yamada.masahiro@socionext.com>
25 const: socionext,uniphier-system-bus
30 "#address-cells":
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| /Linux-v5.10/Documentation/vm/ |
| D | numa.rst | 19 Each of the 'cells' may be viewed as an SMP [symmetric multi-processor] subset
20 of the system--although some components necessary for a stand-alone SMP system
22 connected together with some sort of system interconnect--e.g., a crossbar or
23 point-to-point link are common types of NUMA system interconnects. Both of
29 to and accessible from any CPU attached to any cell and cache coherency
33 away the cell containing the CPU or IO bus making the memory access is from the
43 [cache misses] to be to "local" memory--memory on the same cell, if any--or
53 "closer" nodes--nodes that map to closer cells--will generally experience
65 the existing nodes--or the system memory for non-NUMA platforms--into multiple
68 application features on non-NUMA platforms, and as a sort of memory resource
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|
| /Linux-v5.10/arch/arm64/boot/dts/rockchip/ |
| D | rk3328-a1.dts | 1 // SPDX-License-Identifier: (GPL-2.0-only OR MIT)
2 // Copyright (c) 2017-2019 Arm Ltd.
4 /dts-v1/;
9 compatible = "azw,beelink-a1", "rockchip,rk3328";
12 * UART pins, as viewed with bottom of case removed:
15 * /-------
16 * L / o <- Gnd
17 * e / o <-- Rx
18 * f / o <--- Tx
19 * t / o <---- +3.3v
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| /Linux-v5.10/lib/ |
| D | percpu-refcount.c | 1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/percpu-refcount.h>
12 * don't try to detect the ref hitting 0 - which means that get/put can just
14 * particular cpu can (and will) wrap - this is fine, when we go to shutdown the
23 * the ref hitting 0 on every put - this would require global synchronization
36 #define PERCPU_COUNT_BIAS (1LU << (BITS_PER_LONG - 1))
44 (ref->percpu_count_ptr & ~__PERCPU_REF_ATOMIC_DEAD); in percpu_count_ptr()
48 * percpu_ref_init - initialize a percpu refcount
59 * Note that @release must not sleep - it may potentially be called from RCU
70 ref->percpu_count_ptr = (unsigned long) in percpu_ref_init()
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|
| /Linux-v5.10/Documentation/admin-guide/mm/ |
| D | numa_memory_policy.rst | 12 supported platforms with Non-Uniform Memory Access architectures since 2.4.?.
18 (``Documentation/admin-guide/cgroup-v1/cpusets.rst``)
21 programming interface that a NUMA-aware application can take advantage of. When
30 ------------------------
43 not to overload the initial boot node with boot-time
47 this is an optional, per-task policy. When defined for a
63 In a multi-threaded task, task policies apply only to the thread
100 mapping-- i.e., at Copy-On-Write.
103 virtual address space--a.k.a. threads--independent of when
108 are NOT inheritable across exec(). Thus, only NUMA-aware
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| /Linux-v5.10/Documentation/ |
| D | memory-barriers.txt | 19 documentation at tools/memory-model/. Nevertheless, even this memory
20 model should be viewed as the collective opinion of its maintainers rather
37 Note also that it is possible that a barrier may be a no-op for an
48 - Device operations.
49 - Guarantees.
53 - Varieties of memory barrier.
54 - What may not be assumed about memory barriers?
55 - Data dependency barriers (historical).
56 - Control dependencies.
57 - SMP barrier pairing.
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|
| /Linux-v5.10/drivers/media/pci/cx18/ |
| D | cx23418.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
11 #include <media/drv-intf/cx2341x.h>
19 IN[0] - Task ID. This is one of the XPU_CMD_MASK_YYY where XPU is
21 OUT[0] - Task handle. This handle is passed along with commands to
23 ReturnCode - One of the ERR_SYS_... */
27 IN[0] - Task handle. Hanlde of the task to destroy
28 ReturnCode - One of the ERR_SYS_... */
31 /* All commands for CPU have the following mask set */
49 IN[0] - audio parameters (same as CX18_CPU_SET_AUDIO_PARAMETERS?)
50 IN[1] - caller buffer address, or 0
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|
| /Linux-v5.10/arch/arm/probes/ |
| D | decode.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
31 /* We need a run-time check to determine str_pc_offset */
55 it |= it >> (27 - 10); /* Carry ITSTATE<2> to correct place */ in it_advance()
65 long cpsr = regs->ARM_cpsr; in bx_write_pc()
73 regs->ARM_cpsr = cpsr; in bx_write_pc()
74 regs->ARM_pc = pcv; in bx_write_pc()
86 /* We need run-time testing to determine if load_write_pc() should interwork. */
97 regs->ARM_pc = pcv; in load_write_pc()
114 /* We could be an ARMv6 binary on ARMv7 hardware so we need a run-time check. */
125 regs->ARM_pc = pcv; in alu_write_pc()
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|
| /Linux-v5.10/Documentation/networking/device_drivers/ethernet/aquantia/ |
| D | atlantic.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 For the aQuantia Multi-Gigabit PCI Express Family of Ethernet Adapters
12 - Identifying Your Adapter
13 - Configuration
14 - Supported ethtool options
15 - Command Line Parameters
16 - Config file parameters
17 - Support
18 - License
23 The driver in this release is compatible with AQC-100, AQC-107, AQC-108
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|
| /Linux-v5.10/Documentation/driver-api/usb/ |
| D | gadget.rst | 11 This document presents a Linux-USB "Gadget" kernel mode API, for use
17 - Supports USB 2.0, for high speed devices which can stream data at
20 - Handles devices with dozens of endpoints just as well as ones with
21 just two fixed-function ones. Gadget drivers can be written so
24 - Flexible enough to expose more complex USB device capabilities such
28 - USB "On-The-Go" (OTG) support, in conjunction with updates to the
29 Linux-USB host side.
31 - Sharing data structures and API models with the Linux-USB host side
32 API. This helps the OTG support, and looks forward to more-symmetric
36 - Minimalist, so it's easier to support new device controller hardware.
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|
| /Linux-v5.10/Documentation/admin-guide/ |
| D | cgroup-v2.rst | 9 conventions of cgroup v2. It describes all userland-visible aspects
12 v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgroup-v1>`.
17 1-1. Terminology
18 1-2. What is cgroup?
20 2-1. Mounting
21 2-2. Organizing Processes and Threads
22 2-2-1. Processes
23 2-2-2. Threads
24 2-3. [Un]populated Notification
25 2-4. Controlling Controllers
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|
| D | kernel-parameters.txt | 5 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
26 If set to vendor, prefer vendor-specific driver
58 Documentation/firmware-guide/acpi/debug.rst for more information about
121 Disable auto-serialization of AML methods
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|
| /Linux-v5.10/Documentation/gpu/ |
| D | i915.rst | 17 ------------------------
19 .. kernel-doc:: drivers/gpu/drm/i915/intel_runtime_pm.c
22 .. kernel-doc:: drivers/gpu/drm/i915/intel_runtime_pm.c
25 .. kernel-doc:: drivers/gpu/drm/i915/intel_uncore.c
29 ------------------
31 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
34 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
37 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
40 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
43 Intel GVT-g Guest Support(vGPU)
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|
| /Linux-v5.10/Documentation/driver-api/nvdimm/ |
| D | nvdimm.rst | 2 LIBNVDIMM: Non-Volatile Devices
5 libnvdimm - kernel / libndctl - userspace helper library
7 linux-nvdimm@lists.01.org
20 BLK-REGIONs, PMEM-REGIONs, Atomic Sectors, and DAX
52 A system-physical-address range where writes are persistent. A
59 performance benefit of interleaving, but enables DIMM-bounded failure
63 DIMM Physical Address, is a DIMM-relative offset. With one DIMM in
64 the system there would be a 1:1 system-physical-address:DPA association.
67 system-physical-address. BLK capacity always has a 1:1 relationship
68 with a single-DIMM's DPA range.
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|
| /Linux-v5.10/Documentation/filesystems/ |
| D | proc.rst | 1 .. SPDX-License-Identifier: GPL-2.0
24 1.1 Process-Specific Subdirectories
36 3 Per-Process Parameters
37 3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
39 3.2 /proc/<pid>/oom_score - Display current oom-killer score
40 3.3 /proc/<pid>/io - Display the IO accounting fields
41 3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
42 3.5 /proc/<pid>/mountinfo - Information about mounts
44 3.7 /proc/<pid>/task/<tid>/children - Information about task children
45 3.8 /proc/<pid>/fdinfo/<fd> - Information about opened file
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|
| /Linux-v5.10/Documentation/filesystems/caching/ |
| D | fscache.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 FS-Cache mediates between cache backends (such as CacheFS) and network
16 +---------+
17 | | +--------------+
18 | NFS |--+ | |
19 | | | +-->| CacheFS |
20 +---------+ | +----------+ | | /dev/hda5 |
21 | | | | +--------------+
22 +---------+ +-->| | |
23 | | | |--+
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|
| /Linux-v5.10/Documentation/process/ |
| D | submitting-patches.rst | 13 works, see :doc:`development-process`. Also, read :doc:`submit-checklist`
15 a driver, also read :doc:`submitting-drivers`; for device tree binding patches,
16 read :doc:`submitting-patches`.
19 If you're unfamiliar with ``git``, you would be well-advised to learn how to
24 ----------------------------
41 ---------------------
43 Describe your problem. Whether your patch is a one-line bug fix or
49 Describe user-visible impact. Straight up crashes and lockups are
54 vendor/product-specific trees that cherry-pick only specific patches
59 Quantify optimizations and trade-offs. If you claim improvements in
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|
| /Linux-v5.10/drivers/pci/controller/ |
| D | pcie-brcmstb.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 /* Copyright (C) 2009 - 2019 Broadcom */
34 /* BRCM_PCIE_CAP_REGS - Offset for the mandatory capability config regs */
175 #define IDX_ADDR(pcie) (pcie->reg_offsets[EXT_CFG_INDEX])
176 #define DATA_ADDR(pcie) (pcie->reg_offsets[EXT_CFG_DATA])
177 #define PCIE_RGR1_SW_INIT_1(pcie) (pcie->reg_offsets[RGR1_SW_INIT_1])
294 * non-linear values of PCIE_X_MISC_RC_BAR[123]_CONFIG_LO.SIZE
302 return (log2_in - 12) + 0x1c; in brcm_pcie_encode_ibar_size()
305 return log2_in - 15; in brcm_pcie_encode_ibar_size()
338 return MDIO_RD_DONE(data) ? 0 : -EIO; in brcm_pcie_mdio_read()
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|
| /Linux-v5.10/drivers/ide/ |
| D | ide-probe.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 1994-1998 Linus Torvalds & authors (see below)
10 * and Andre Hedrick <andre@linux-ide.org>
16 * -- increase WAIT_PIDENTIFY to avoid CD-ROM locking at boot
44 * generic_id - add a generic drive id
54 u16 *id = drive->id; in generic_id()
56 id[ATA_ID_CUR_CYLS] = id[ATA_ID_CYLS] = drive->cyl; in generic_id()
57 id[ATA_ID_CUR_HEADS] = id[ATA_ID_HEADS] = drive->head; in generic_id()
58 id[ATA_ID_CUR_SECTORS] = id[ATA_ID_SECTORS] = drive->sect; in generic_id()
63 u16 *id = drive->id; in ide_disk_init_chs()
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|
| /Linux-v5.10/tools/power/pm-graph/ |
| D | sleepgraph.py | 2 # SPDX-License-Identifier: GPL-2.0-only
21 # https://01.org/pm-graph
23 # git@github.com:intel/pm-graph
33 # viewed in firefox or chrome.
51 # ----------------- LIBRARIES --------------------
76 # ----------------- CLASSES --------------------
80 # A global, single-instance container used to
99 cgtest = -1
169 tmstart = 'SUSPEND START %Y%m%d-%H:%M:%S.%f'
170 tmend = 'RESUME COMPLETE %Y%m%d-%H:%M:%S.%f'
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|
| /Linux-v5.10/drivers/net/wan/ |
| D | cosa.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
20 * For Linux-specific utilities, see below in the "Software info" section.
24 * is a 2-port intelligent (with its own 8-bit CPU) synchronous serial card
28 * "scythe") is a next-generation sync/async board with two interfaces
29 * - currently any of V.24, X.21, V.35 and V.36 can be selected.
30 * It has a 16-bit SAB80166 CPU and can do up to 10 Mb/s per channel.
31 * The 8-channels version is in development.
34 * COSA can be also a bus-mastering device.
39 * The CVS tree of Linux driver can be viewed there, as well as the
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|
| /Linux-v5.10/drivers/net/ethernet/intel/ixgbe/ |
| D | ixgbe_main.c | 1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
61 "Copyright (c) 1999-2016 Intel Corporation.";
76 /* ixgbe_pci_tbl - PCI Device ID Table
151 …"Maximum number of virtual functions to allocate per physical function - default is zero and maxim…
157 "Allow unsupported and untested SFP+ modules on 82599-based adapters");
160 static int debug = -1;
177 return dev && (dev->netdev_ops == &ixgbe_netdev_ops); in netif_is_ixgbe()
186 parent_bus = adapter->pdev->bus->parent; in ixgbe_read_pci_cfg_word_parent()
188 return -1; in ixgbe_read_pci_cfg_word_parent()
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|
