| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | vidioc-s-hw-freq-seek.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_S_HW_FREQ_SEEK - Perform a hardware frequency seek
41 The ``rangelow`` and ``rangehigh`` fields can be set to a non-zero value
58 If this ioctl is called from a non-blocking filehandle, then ``EAGAIN``
65 .. flat-table:: struct v4l2_hw_freq_seek
66 :header-rows: 0
67 :stub-columns: 0
70 * - __u32
71 - ``tuner``
72 - The tuner index number. This is the same value as in the struct
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| /linux/Documentation/block/ |
| H A D | bfq-iosched.rst | 5 BFQ is a proportional-share I/O scheduler, with some extra
6 low-latency capabilities. In addition to cgroups support (blkio or io
9 - BFQ guarantees a high system and application responsiveness, and a
10 low latency for time-sensitive applications, such as audio or video
12 - BFQ distributes bandwidth, not just time, among processes or
19 goal, for a given device, is to achieve the maximum-possible
20 throughput at all times, then do switch off all low-latency heuristics
25 As every I/O scheduler, BFQ adds some overhead to per-I/O-request
27 single-lock-protected, per-request processing time of BFQ---i.e., the
29 completion hooks---is, e.g., 1.9 us on an Intel Core i7-2760QM@2.40GHz
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| /linux/Documentation/admin-guide/sysctl/ |
| H A D | vm.rst | 13 ------------------------------------------------------------------------------
27 - admin_reserve_kbytes
28 - compact_memory
29 - compaction_proactiveness
30 - compact_unevictable_allowed
31 - defrag_mode
32 - dirty_background_bytes
33 - dirty_background_ratio
34 - dirty_bytes
35 - dirty_expire_centisecs
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| /linux/drivers/net/ethernet/asix/ |
| H A D | Kconfig | 9 If you have a network (Ethernet, non-USB, not NE2000 compatible)
15 tristate "Asix AX88796C-SPI support"
31 changed at run time via spi-compression ethtool tunable.
|
| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-fs-ext4 | 44 Files which have fewer blocks than this tunable
57 algorithm will pre-read into the buffer cache
63 This file is read-only and shows the number of blocks
71 This file is read-only and shows the number of kilobytes
79 This file is read-only and shows the number of
87 Tuning parameter which (if non-zero) controls the goal
117 This file is read-only and shows the pid of journal thread in
118 current pid-namespace or 0 if task is unreachable.
|
| /linux/drivers/gpu/drm/i915/ |
| H A D | Kconfig.profile | 35 that complements the runtime-pm autosuspend and provides a lower
39 runtime pm autosuspend delay tunable.
46 check the health of the GPU and undertake regular house-keeping of
98 take a non-negligible time to setup, we do a short spin first to
|
| /linux/tools/include/uapi/linux/ |
| H A D | fs.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
9 * sending patches for review to linux-fsdevel@vger.kernel.org and
10 * linux-api@vger.kernel.org.
27 * the file limit at runtime and only root can increase the per-process
29 * upper limit on files-per-process.
94 /* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */
100 __s64 dest_fd; /* in - destination file */
101 __u64 dest_offset; /* in - start of extent in destination */
102 __u64 bytes_deduped; /* out - total # of bytes we were able
109 __s32 status; /* out - see above description */
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| /linux/include/uapi/linux/ |
| H A D | ethtool.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
26 * have the same layout for 32-bit and 64-bit userland.
38 * struct ethtool_cmd - DEPRECATED, link control and status
43 * interface supports autonegotiation or auto-detection.
44 * Read-onl
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| H A D | fs.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
9 * sending patches for review to linux-fsdevel@vger.kernel.org and
10 * linux-api@vger.kernel.org.
27 * the file limit at runtime and only root can increase the per-process
29 * upper limit on files-per-process.
162 /* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */
168 __s64 dest_fd; /* in - destination file */
169 __u64 dest_offset; /* in - start of extent in destination */
170 __u64 bytes_deduped; /* out - total # of bytes we were able
177 __s32 status; /* out - see above description */
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| /linux/tools/perf/trace/beauty/include/uapi/linux/ |
| H A D | fs.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
9 * sending patches for review to linux-fsdevel@vger.kernel.org and
10 * linux-api@vger.kernel.org.
27 * the file limit at runtime and only root can increase the per-process
29 * upper limit on files-per-process.
162 /* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */
168 __s64 dest_fd; /* in - destination file */
169 __u64 dest_offset; /* in - start of extent in destination */
170 __u64 bytes_deduped; /* out - total # of bytes we were able
177 __s32 status; /* out - see above description */
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| /linux/Documentation/devicetree/bindings/mmc/ |
| H A D | mmc-controller-common.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mmc/mmc-controller-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ulf Hansson <ulf.hansson@linaro.org>
14 possible slots or ports for multi-slot controllers.
17 "#address-cells":
22 "#size-cells":
29 broken-cd:
34 cd-gpios:
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|
| H A D | nvidia,tegra20-sdhci.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mmc/nvidia,tegra20-sdhci.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
18 mmc-controller.yaml and the properties for the Tegra SDHCI controller.
23 - enum:
24 - nvidia,tegra20-sdhci
25 - nvidia,tegra30-sdhci
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|
| /linux/include/linux/ |
| H A D | ethtool.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
50 * enum ethtool_phys_id_state - indicator state for physical identification
66 ETH_RSS_HASH_TOP_BIT, /* Configurable RSS hash function - Toeplitz */
67 ETH_RSS_HASH_XOR_BIT, /* Configurable RSS hash function - Xor */
68 ETH_RSS_HASH_CRC32_BIT, /* Configurable RSS hash function - Crc32 */
78 * struct kernel_ethtool_ringparam - RX/TX ring configuration
103 * enum ethtool_supported_ring_param - indicator caps for setting ring params
110 * @ETHTOOL_RING_USE_HDS_THRS: capture for setting header-data-split-thresh
151 * In a simpler world it should be equal to netdev->carrier_down_count
153 * actually take the physical link down, not to mention NC-SI which,
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|
| H A D | topology.h | 18 * NON INFRINGEMENT. See the GNU General Public License for more
63 * The following tunable allows platforms to override the default node
68 * AMD EPYC machines use this because even though the 2-hop distance
71 * between NUMA nodes 2-hops apart.
194 #define topology_physical_package_id(cpu) ((void)(cpu), -1)
197 #define topology_die_id(cpu) ((void)(cpu), -1)
200 #define topology_cluster_id(cpu) ((void)(cpu), -1)
206 #define topology_book_id(cpu) ((void)(cpu), -1)
209 #define topology_drawer_id(cpu) ((void)(cpu), -1)
280 return ERR_PTR(-EOPNOTSUPP); in sched_numa_hop_mask()
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|
| H A D | edac.h | 6 * 2006-2008 (c) MontaVista Software, Inc. This file is licensed under
26 #define EDAC_OPSTATE_INVAL -1
60 * enum dev_type - describe the type of memory DRAM chips used at the stick
93 * enum hw_event_mc_err_type - type of the detected error
95 * @HW_EVENT_ERR_CORRECTED: Corrected Error - Indicates that an ECC
97 * @HW_EVENT_ERR_UNCORRECTED: Uncorrected Error - Indicates an error that
101 * it for example, by re-trying the operation).
102 * @HW_EVENT_ERR_DEFERRED: Deferred Error - Indicates an uncorrectable
108 * @HW_EVENT_ERR_FATAL: Fatal Error - Uncorrected error that could not
110 * @HW_EVENT_ERR_INFO: Informational - The CPER spec defines a forth
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| /linux/Documentation/admin-guide/pm/ |
| H A D | cpufreq.rst | 1 .. SPDX-License-Identifier: GPL-2.0
20 Operating Performance Points or P-states (in ACPI terminology). As a rule,
24 time (or the more power is drawn) by the CPU in the given P-state. Therefore
29 as possible and then there is no reason to use any P-states different from the
30 highest one (i.e. the highest-performance frequency/voltage configuration
38 put into different P-states.
41 capacity, so as to decide which P-states to put the CPUs into. Of course, since
64 information on the available P-states (or P-state ranges in some cases) and
65 access platform-specific hardware interfaces to change CPU P-states as requested
70 performance scaling algorithms for P-state selection can be represented in a
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|
| /linux/include/target/ |
| H A D | target_core_fabric.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
13 * If non-null, fabric_alias is used for matching target/$fabric
26 * Setting this value tells target-core to enforce this limit, and
29 * target-core will currently reset se_cmd->data_length to this
33 * XXX: Not all initiator hosts honor this block-limit EVPD
45 * Optionally used by fabrics to allow demo-mode login, but not
51 * Optionally used as a configfs tunable to determine when
52 * target-core should signal the PROTECT=1 feature bit for
53 * backends that don't support T10-PI, so that either fabric
54 * HW offload or target-core emulation performs the associated
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|
| /linux/arch/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
22 # IOMMUs not handled by dma-iommu. Drivers must never select this symbol.
29 menu "General architecture-dependent options"
34 Select if the architecture can check permissions at sub-page
70 by sharing mid-level caches, last-level cache tags or internal
74 bool "Multi-Core Cache (MC) scheduler support"
78 Multi-core scheduler support improves the CPU scheduler's decision
79 making when dealing with multi-core CPU chips at a cost of slightly
127 for kernel debugging, non-intrusive instrumentation and testing.
136 makes certain almost-always-true or almost-always-false branch
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| /linux/net/ceph/ |
| H A D | osdmap.c | 1 // SPDX-License-Identifier: GPL-2.0
24 printk(KERN_INFO "%s (%pU e%u): %pV", KBUILD_MODNAME, &map->fsid, in osdmap_info()
25 map->epoch, &vaf); in osdmap_info()
60 * the foo_mask is the smallest value 2^n-1 that is >= foo.
64 pi->pg_num_mask = (1 << calc_bits_of(pi->pg_num-1)) - 1; in calc_pg_masks()
65 pi->pgp_num_mask = (1 << calc_bits_of(pi->pgp_num-1)) - 1; in calc_pg_masks()
75 ceph_decode_need(p, end, (1+b->h.size) * sizeof(u32), bad); in crush_decode_uniform_bucket()
76 b->item_weight = ceph_decode_32(p); in crush_decode_uniform_bucket()
79 return -EINVAL; in crush_decode_uniform_bucket()
87 b->item_weights = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); in crush_decode_list_bucket()
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|
| /linux/kernel/power/ |
| H A D | snapshot.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 * Copyright (C) 1998-2005 Pavel Machek <pavel@ucw.cz>
121 * from their ->freeze() and ->freeze_noirq() callbacks so that they don't
122 * cause image creation to fail (tunable via /sys/power/reserved_size).
132 * Preferred image size in bytes (tunable via /sys/power/image_size).
154 #define LINKED_PAGE_DATA_SIZE (PAGE_SIZE - sizeo
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| /linux/drivers/net/dsa/sja1105/ |
| H A D | sja1105_clocking.c | 1 // SPDX-License-Identifier: BSD-3-Clause
2 /* Copyright 2016-2018 NXP
3 * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
107 sja1105_packing(buf, &idiv->clksrc, 28, 24, size, op); in sja1105_cgu_idiv_packing()
108 sja1105_packing(buf, &idiv->autoblock, 11, 11, size, op); in sja1105_cgu_idiv_packing()
109 sja1105_packing(buf, &idiv->idiv, 5, 2, size, op); in sja1105_cgu_idiv_packing()
110 sja1105_packing(buf, &idiv->pd, 0, 0, size, op); in sja1105_cgu_idiv_packing()
116 const struct sja1105_regs *regs = priv->info->regs; in sja1105_cgu_idiv_config()
117 struct device *dev = priv->ds->dev; in sja1105_cgu_idiv_config()
121 if (regs->cgu_idiv[port] == SJA1105_RSV_ADDR) in sja1105_cgu_idiv_config()
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| /linux/Documentation/scheduler/ |
| H A D | sched-util-clamp.rst | 1 .. SPDX-License-Identifier: GPL-2.0
57 foreground, top-app, etc. Util clamp can be used to constrain how much
60 the ones belonging to the currently active app (top-app group). Beside this
65 1. The big cores are free to run top-app tasks immediately. top-app
106 Note that by design RT tasks don't have per-task PELT signal and must always
114 See :ref:`section 3.4 <uclamp-default-values>` for default values and
115 :ref:`3.4.1 <sched-util-clamp-min-rt-default>` on how to change RT tasks
150 task on the rq to only a subset of tasks on the top-most bucket.
157 uclamp value of the rq. See :ref:`section 2.1 <uclamp-buckets>` for details on
182 .. _uclamp-buckets:
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| /linux/Documentation/networking/dsa/ |
| H A D | sja1105.rst | 8 The NXP SJA1105 is a family of 10 SPI-managed automotive switches:
10 - SJA1105E: First generation, no TTEthernet
11 - SJA1105T: First generation, TTEthernet
12 - SJA1105P: Second generation, no TTEthernet, no SGMII
13 - SJA1105Q: Second generation, TTEthernet, no SGMII
14 - SJA1105R: Second generation, no TTEthernet, SGMII
15 - SJA1105S: Second generation, TTEthernet, SGMII
16 - SJA1110A: Third generation, TTEthernet, SGMII, integrated 100base-T1 and
17 100base-TX PHYs
18 - SJA1110B: Third generation, TTEthernet, SGMII, 100base-T1, 100base-TX
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|
| /linux/mm/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
30 compress them into a dynamically allocated RAM-based memory pool.
145 int "Maximum number of physical pages per-zspage"
226 specifically-sized allocations with user-controlled contents
230 user-controlled allocations. This may very slightly increase
232 of extra pages since the bulk of user-controlled allocations
233 are relatively long-lived.
248 Try running: slabinfo -DA
285 utilization of a direct-mapped memory-side-cache. See section
288 the presence of a memory-side-cache. There are also incidental
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| /linux/drivers/platform/x86/ |
| H A D | asus-wmi.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
22 #include <linux/hwmon-sysfs.h>
25 #include <linux/input/sparse-keymap.h>
32 #include <linux/platform_data/x86/asus-wmi.h>
45 #include "asus-wmi.h"
58 #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
140 /* New modes for devices with 3 mini-led mode types */
196 u16 mfun; /* probably "Multi-function" to be called */
197 u16 sfun; /* probably "Sub-function" to be called */
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