| /linux/drivers/gpu/drm/i915/gem/ |
| H A D | i915_gem_ttm.h | 1 /* SPDX-License-Identifier: MIT */
13 * i915_gem_to_ttm - Convert a struct drm_i915_gem_object to a
22 return &obj->__do_not_access; in i915_gem_to_ttm()
31 * i915_ttm_is_ghost_object - Check if the ttm bo is a ghost object.
39 return bo->destroy != i915_ttm_bo_destroy; in i915_ttm_is_ghost_object()
43 * i915_ttm_to_gem - Convert a struct ttm_buffer_object to an embedding
82 * i915_ttm_gtt_binds_lmem - Should the memory be viewed as LMEM by the GTT?
85 * Return: true if memory should be viewed as LMEM for GTT binding purposes,
90 return mem->mem_type != I915_PL_SYSTEM; in i915_ttm_gtt_binds_lmem()
94 * i915_ttm_cpu_maps_iomem - Should the memory be viewed as IOMEM by the CPU?
[all …]
|
| /linux/Documentation/RCU/ |
| H A 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38 a description of Argus that noted that use of out-of-date values can
[all …]
|
| /linux/tools/perf/Documentation/ |
| H A 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 -----------------
[all …]
|
| H A D | perf-arm-spe.txt | 1 perf-arm-spe(1)
5 ----
6 perf-arm-spe - Support for Arm Statistical Profiling Extension within Perf tools
9 -
[all...] |
| /linux/Documentation/devicetree/bindings/bus/ |
| H A 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":
[all …]
|
| /linux/Documentation/mm/ |
| H A D | numa.rst | 17 Each of the 'cells' may be viewed as an SMP [symmetric multi-processor] subset
18 of the system--although some components necessary for a stand-alone SMP system
20 connected together with some sort of system interconnect--e.g., a crossbar or
21 point-to-point link are common types of NUMA system interconnects. Both of
27 to and accessible from any CPU attached to any cell and cache coherency
31 away the cell containing the CPU or IO bus making the memory access is from the
41 [cache misses] to be to "local" memory--memory on the same cell, if any--or
51 "closer" nodes--nodes that map to closer cells--will generally experience
63 the existing nodes--or the system memory for non-NUMA platforms--into multiple
66 application features on non-NUMA platforms, and as a sort of memory resource
[all …]
|
| /linux/lib/ |
| H A D | percpu-refcount.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 #include <linux/percpu-refcount.h>
13 * don't try to detect the ref hitting 0 - which means that get/put can just
15 * particular cpu can (and will) wrap - this is fine, when we go to shutdown the
24 * the ref hitting 0 on every put - this would require global synchronization
37 #define PERCPU_COUNT_BIAS (1LU << (BITS_PER_LONG - 1))
45 (ref->percpu_count_ptr & ~__PERCPU_REF_ATOMIC_DEAD); in percpu_count_ptr()
49 * percpu_ref_init - initialize a percpu refcount
60 * Note that @release must not sleep - it may potentially be called from RCU
71 ref->percpu_count_ptr = (unsigned long) in percpu_ref_init()
[all …]
|
| /linux/Documentation/admin-guide/mm/ |
| H A D | numa_memory_policy.rst | 10 supported platforms with Non-Uniform Memory Access architectures since 2.4.?.
16 (``Documentation/admin-guide/cgroup-v1/cpusets.rst``)
19 programming interface that a NUMA-aware application can take advantage of. When
28 ------------------------
41 not to overload the initial boot node with boot-time
45 this is an optional, per-task policy. When defined for a
61 In a multi-threaded task, task policies apply only to the thread
98 mapping-- i.e., at Copy-On-Write.
101 virtual address space--a.k.a. threads--independent of when
106 are NOT inheritable across exec(). Thus, only NUMA-aware
[all …]
|
| /linux/Documentation/trace/coresight/ |
| H A D | coresight-config.rst | 1 .. SPDX-License-Identifier: GPL-2.0
14 programming of the CoreSight system with pre-defined configurations that
17 Many CoreSight components can be programmed in complex ways - especially ETMs.
30 --------
41 accesses in the driver - the resource usage and parameter descriptions
67 system - which is described below.
74 --------------
82 enabled on a class of devices - i.e. any ETMv4, or specific devices, e.g. a
118 perf record -e cs_etm/autofdo/ myapp
137 system can be viewed using the configfs API.
[all …]
|
| /linux/arch/arm/probes/ |
| H A D | decode.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
32 /* We need a run-time check to determine str_pc_offset */
41 long cpsr = regs->ARM_cpsr; in bx_write_pc()
49 regs->ARM_cpsr = cpsr; in bx_write_pc()
50 regs->ARM_pc = pcv; in bx_write_pc()
62 /* We need run-time testing to determine if load_write_pc() should interwork. */
73 regs->ARM_pc = pcv; in load_write_pc()
90 /* We could be an ARMv6 binary on ARMv7 hardware so we need a run-time check. */
101 regs->ARM_pc = pcv; in alu_write_pc()
118 * viewed as an array of these and declared like:
[all …]
|
| /linux/Documentation/ |
| H A 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 - Address-dependency barriers (historical).
56 - Control dependencies.
57 - SMP barrier pairing.
[all …]
|
| /linux/Documentation/networking/dsa/ |
| H A D | dsa.rst | 22 An Ethernet switch typically comprises multiple front-panel ports and one
23 or more CPU or management ports. The DSA subsystem currently relies on the
27 gateways, or even top-of-rack switches. This host Ethernet controller will
28 be later referred to as "conduit" and "cpu" in DSA terminology and code.
36 For each front-panel port, DSA creates specialized network devices which are
37 used as controlling and data-flowing endpoints for use by the Linux networking
46 - what port is this frame coming from
47 - what was the reason why this frame got forwarded
48 - how to send CPU originated traffic to specific ports
52 on Port-based VLAN IDs).
[all …]
|
| /linux/drivers/media/pci/cx18/ |
| H A 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
[all …]
|
| /linux/Documentation/security/ |
| H A D | snp-tdx-threat-model.rst | 17 the kernel through various networking or limited HW-specific exposed
48 additional mechanisms to control guest-host page mapping. More details on
49 the x86-specific solutions can be found in
51 …https://www.amd.com/system/files/techdocs/sev-snp-strengthening-vm-isolation-with-integrity-protec…
56 that acts as a security manager. The host-side virtual machine monitor
63 In the following diagram, the "<--->" lines represent bi-directional
67 +-------------------+ +-----------------------+
68 | CoCo guest VM |<---->| |
69 +-------------------+ | |
71 +-------------------+ | |
[all …]
|
| /linux/Documentation/networking/device_drivers/ethernet/aquantia/ |
| H A 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
[all …]
|
| /linux/Documentation/driver-api/usb/ |
| H A 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.
[all …]
|
| /linux/Documentation/arch/s390/ |
| H A D | vfio-ap.rst | 13 The AP adapter cards are exposed via the AP bus. The motivation for vfio-ap
32 CPU.
45 sub-directory::
76 significant bit, correspond to domains 0-255.
111 * NQAP: to enqueue an AP command-request message to a queue
112 * DQAP: to dequeue an AP command-reply message from a queue
132 an APID from 0-255. If a bit is set, the corresponding adapter is valid for
137 corresponds to an AP queue index (APQI) from 0-255. If a bit is set, the
142 changed by an AP command-request message sent to a usage domain from the
144 0-255. If a bit is set, the corresponding domain can be modified by an AP
[all …]
|
| /linux/Documentation/admin-guide/ |
| H A D | kernel-parameters.txt | 16 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
[all …]
|
| /linux/Documentation/process/ |
| H A D | submitting-patches.rst | 13 works, see Documentation/process/development-process.rst. Also, read
14 Documentation/process/submit-checklist.rst
17 Documentation/devicetree/bindings/submitting-patches.rst.
20 If you're unfamiliar with ``git``, you would be well-advised to learn how to
26 :ref:`Documentation/process/maintainer-handbooks.rst <maintainer_handbooks_main>`.
29 ----------------------------
46 ---------------------
48 Describe your problem. Whether your patch is a one-line bug fix or
54 Describe user-visible impact. Straight up crashes and lockups are
59 vendor/product-specific trees that cherry-pick only specific patches
[all …]
|
| /linux/tools/power/pm-graph/ |
| H A D | sleepgraph.py | 2 # SPDX-License-Identifier: GPL-2.0-only
21 # https://www.intel.com/content/www/us/en/developer/topic-technology/open/pm-graph/overview.html
23 # git@github.com:intel/pm-graph
33 # viewed in firefox or chrome.
51 # --
[all...] |
| /linux/drivers/net/ethernet/intel/ixgbe/ |
| H A D | ixgbe_main.c | 1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
63 "Copyright (c) 1999-2016 Intel Corporation.";
78 /* ixgbe_pci_tbl - PCI Device ID Table
153 …"Maximum number of virtual functions to allocate per physical function - default is zero and maxim…
159 "Allow unsupported and untested SFP+ modules on 82599-based adapters");
162 static int debug = -1;
181 return dev && (dev->netdev_ops == &ixgbe_netdev_ops); in netif_is_ixgbe()
190 parent_bus = adapter->pdev->bus->parent; in ixgbe_read_pci_cfg_word_parent()
192 return -1; in ixgbe_read_pci_cfg_word_parent()
[all …]
|
| /linux/kernel/bpf/ |
| H A D | verifier.c | 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
7 #include <linux/bpf-cgroup.h>
23 #include <linux/error-injection.h>
54 * The first pass is depth-first-search to check that the program is a DAG.
56 * - larger than BPF_MAXINSNS insns
57 * - if loop is present (detected via back-edge)
58 * - unreachable insns exist (shouldn't be a forest. program = one function)
59 * - out of bounds or malformed jumps
71 * All registers are 64-bit.
[all …]
|