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/linux/tools/include/linux/
H A Doverflow.h1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
12 * #define type_min(T) (T)(is_signed_type(T) ? (T)1 << (8*sizeof(T)-1) : 0)
13 * #define type_max(T) (T)(is_signed_type(T) ? ((T)1 << (8*sizeof(T)-1)) - 1 : ~(T)0)
17 * the type_max expression (but not if -fsanitize=undefined is in
23 * a-feature-not-a-bug, since people shouldn't be doing arithmetic on
28 * https://mail-index.netbsd.org/tech-misc/2007/02/05/0000.html -
31 #define is_signed_type(type) (((type)(-1)) < (type)1)
32 #define __type_half_max(type) ((type)1 << (8*sizeof(type) - 1 - is_signed_type(type)))
33 #define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T)))
34 #define type_min(T) ((T)((T)-type_max(T)-(T)1))
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/linux/include/linux/dma/
H A Dti-cppi5.h1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com
16 * struct cppi5_desc_hdr_t - Descriptor header, present in all types of
31 * struct cppi5_host_desc_t - Host-mode packet and buffer descriptor definition
39 * Protocol Specific Data (optional, 0-128 bytes in
41 * Other Software Data (0-N bytes, optional)
66 * 0 - located in the descriptor,
87 /* Return Policy: 0 - Entire packet 1 - Each buffer */
119 * struct cppi5_desc_epib_t - Host Packet Descriptor Extended Packet Info Block
133 * struct cppi5_monolithic_desc_t - Monolithic-mode packet descriptor
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/linux/Documentation/devicetree/bindings/media/
H A Dmediatek,mdp3-tdshp.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/mediatek,mdp3-tdshp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek Media Data Path 3 Two-Dimensional Sharpness
10 - Matthias Brugger <matthias.bgg@gmail.com>
11 - Moudy Ho <moudy.ho@mediatek.com>
14 Two-Dimensional Sharpness (TDSHP) is a Media Profile Path 3 (MDP3) component
20 - mediatek,mt8195-mdp3-tdshp
25 mediatek,gce-client-reg:
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H A Dvideo-interface-devices.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/video-interface-devices.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacopo Mondi <jacopo@jmondi.org>
11 - Sakari Ailus <sakari.ailus@linux.intel.com>
14 flash-leds:
15 $ref: /schemas/types.yaml#/definitions/phandle-array
17 An array of phandles, each referring to a flash LED, a sub-node of the LED
20 lens-focus:
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/linux/include/media/i2c/
H A Dupd64083.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * upd6408x - NEC Electronics 3-Dimensional Y/C separation input defines
11 /* There are two bits of information that the driver needs in order
15 The first two operating modes expect a composite signal on the Y input,
16 the second two operating modes use both the Y and C inputs.
19 YCNR mode is used for S-Video inputs.
21 The external Y-ADC is selected when the composite input comes from a
23 the input is a S-Video signal, then the internal Y-ADC input should
33 /* Note: the following two modes cannot be used in combination with the
34 external Y-ADC. */
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/linux/Documentation/userspace-api/
H A Ddma-buf-alloc-exchange.rst1 .. SPDX-License-Identifier: GPL-2.0
2 .. Copyright 2021-2023 Collabora Ltd.
9 support for sharing pixel-buffer allocations between processes, devices, and
12 approach this sharing for two-dimensional image data.
25 Conceptually a two-dimensional array of pixels. The pixels may be stored
30 A span along a single y-axis value, e.g. from co-ordinates (0,100) to
37 A span along a single x-axis value, e.g. from co-ordinates (100,0) to
46 A two-dimensional array of some or all of an image's color and alpha
80 A value that denotes the relationship between pixel-location co-ordinates
81 and byte-offset values. Typically used as the byte offset between two
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/linux/include/linux/
H A Doverflow.h1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
14 * #define type_min(T) (T)(is_signed_type(T) ? (T)1 << (8*sizeof(T)-1) : 0)
15 * #define type_max(T) (T)(is_signed_type(T) ? ((T)1 << (8*sizeof(T)-1)) - 1 : ~(T)0)
19 * the type_max expression (but not if -fsanitize=undefined is in
25 * a-feature-not-a-bug, since people shouldn't be doing arithmetic on
30 * https://mail-index.netbsd.org/tech-misc/2007/02/05/0000.html -
33 #define __type_half_max(type) ((type)1 << (8*sizeof(type) - 1 - is_signed_type(type)))
34 #define __type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T)))
36 #define __type_min(T) ((T)((T)-type_max(T)-(T)1))
40 * Avoids triggering -Wtype-limits compilation warning,
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H A Dedac.h6 * 2006-2008 (c) MontaVista Software, Inc. This file is licensed under
26 #define EDAC_OPSTATE_INVAL -1
56 /* String used to join two or more labels */
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
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/linux/include/sound/
H A Dmadera-pdata.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2016-2019 Cirrus Logic, Inc. and
35 * values. Two-dimensional array
/linux/Documentation/userspace-api/media/v4l/
H A Dextended-controls.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _extended-controls:
71 it also allows for 64-bit values and pointers to be passed.
75 such as N-dimensional arrays and/or structures. You need to specify the
83 particular, this ioctl gives the dimensions of the N-dimensional array if
96 audio bitrates. Some drivers only support one or two bitrates, others
110 .. code-block:: c
131 .. code-block:: c
141 The 32-bit ``qctrl.id`` value is subdivided into three bit ranges: the
147 non-zero for controls. The range of 0x1000 and up are reserved for
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H A Dvidioc-queryctrl.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
42 of a struct :ref:`v4l2_queryctrl <v4l2-queryctrl>` and call the
60 driver returns the next supported non-compound control, or ``EINVAL`` if
72 :ref:`v4l2_queryctrl <v4l2-queryctrl>` since that structure is full.
80 fields of struct :ref:`v4l2_querymenu <v4l2-querymenu>` and call the
85 :ref:`v4l2_queryctrl <v4l2-queryctrl>` ``minimum`` to ``maximum``,
99 .. _v4l2-queryctrl:
103 .. flat-table:: struct v4l2_queryctrl
104 :header-rows: 0
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H A Dext-ctrls-codec.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _codec-controls:
24 .. _mpeg-control-id:
27 -----------------
35 .. _v4l2-mpeg-stream-type:
40 enum v4l2_mpeg_stream_type -
41 The MPEG-1, -2 or -4 output stream type. One cannot assume anything
48 .. flat-table::
49 :header-rows: 0
50 :stub-columns: 0
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H A Dvidioc-g-ext-ctrls.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_EXT_CTRLS - VIDIOC_S_EXT_CTRLS - VIDIOC_TRY_EXT_CTRLS - Get or set the value of several co…
44 :ref:`ctrl-class`) and all controls in the control array must belong
61 relevant for pointer-type controls like strings), then the driver will
63 should re-allocate the memory to this new size and try again. For the
70 N-dimensional arrays are set and retrieved row-by-row. You cannot set a
97 If ``request_fd`` is set to a not-yet-queued :ref:`request <media-request-api>`
118 were set/get. Only low-level errors (e. g. a failed i2c command) can
131 .. flat-table:: struct v4l2_ext_control
132 :header-rows: 0
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/linux/drivers/infiniband/sw/siw/
H A Dsiw_mem.h1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
4 /* Copyright (c) 2008-2019, IBM Corporation */
30 kref_put(&mem->ref, siw_free_mem); in siw_mem_put()
42 num_sge--; in siw_unref_mem_sgl()
48 #define CHUNK_MASK (~(PAGES_PER_CHUNK - 1))
56 * @umem: two dimensional list of page pointers
61 unsigned int page_idx = (addr - umem->fp_addr) >> PAGE_SHIFT, in siw_get_upage()
65 if (likely(page_idx < umem->num_pages)) in siw_get_upage()
66 return umem->page_chunk[chunk_idx].plist[page_in_chunk]; in siw_get_upage()
/linux/Documentation/mm/
H A Dmemory-model.rst1 .. SPDX-License-Identifier: GPL-2.0
15 Linux abstracts this diversity using one of the two memory models:
23 Regardless of the selected memory model, there exists one-to-one
35 non-NUMA systems with contiguous, or mostly contiguous, physical
54 straightforward: `PFN - ARCH_PFN_OFFSET` is an index to the
65 as hot-plug and hot-remove of the physical memory, alternative memory
66 maps for non-volatile memory devices and deferred initialization of
85 NR\_MEM\_SECTIONS = 2 ^ {(MAX\_PHYSMEM\_BITS - SECTION\_SIZE\_BITS)}
87 The `mem_section` objects are arranged in a two-dimensional array
103 With SPARSEMEM there are two possible ways to convert a PFN to the
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/linux/drivers/md/dm-vdo/indexer/
H A Dindex-page-map.c1 // SPDX-License-Identifier: GPL-2.0-only
6 #include "index-page-map.h"
10 #include "memory-alloc.h"
13 #include "string-utils.h"
14 #include "thread-utils.h"
16 #include "hash-utils.h"
20 * The index page map is conceptually a two-dimensional array indexed by chapter number and index
28 #define PAGE_MAP_MAGIC_LENGTH (sizeof(PAGE_MAP_MAGIC) - 1)
32 return geometry->chapters_per_volume * (geometry->index_pages_per_chapter - 1); in get_entry_count()
45 map->geometry = geometry; in uds_make_index_page_map()
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/linux/Documentation/virt/kvm/x86/
H A Dmmu.rst1 .. SPDX-License-Identifier: GPL-2.0
13 - correctness:
18 - security:
21 - performance:
23 - scaling:
25 - hardware:
27 - integration:
31 - dirty tracking:
33 and framebuffer-based displays
34 - footprint:
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/linux/Documentation/cpu-freq/
H A Dcpufreq-stats.rst1 .. SPDX-License-Identifier: GPL-2.0
16 3. Configuring cpufreq-stats
22 cpufreq-stats is a driver that provides CPU frequency statistics for each CPU.
37 - time_in_state
38 - total_trans
39 - trans_table
48 <mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # ls -l
50 drwxr-xr-x 2 root root 0 May 14 16:06 .
51 drwxr-xr-x 3 root root 0 May 14 15:58 ..
52 --w------- 1 root root 4096 May 14 16:06 reset
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/linux/drivers/input/
H A Dtouchscreen.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Generic helper functions for touchscreens and other two-dimensional
39 if (!test_bit(axis, dev->absbit)) { in touchscreen_set_params()
40 dev_warn(&dev->dev, in touchscreen_set_params()
46 absinfo = &dev->absinfo[axis]; in touchscreen_set_params()
47 absinfo->minimum = min; in touchscreen_set_params()
48 absinfo->maximum = max; in touchscreen_set_params()
49 absinfo->fuzz = fuzz; in touchscreen_set_params()
53 * touchscreen_parse_properties - parse common touchscreen properties
56 * single-touch or multi-touch axes
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/linux/include/drm/
H A Ddrm_rect.h2 * Copyright (C) 2011-2013 Intel Corporation
37 * struct drm_rect - two dimensional rectangle
51 * DRM_RECT_INIT - initialize a rectangle from x/y/w/h
67 * DRM_RECT_FMT - printf string for &struct drm_rect
71 * DRM_RECT_ARG - printf arguments for &struct drm_rect
74 #define DRM_RECT_ARG(r) drm_rect_width(r), drm_rect_height(r), (r)->x1, (r)->y1
77 * DRM_RECT_FP_FMT - printf string for &struct drm_rect in 16.16 fixed point
81 * DRM_RECT_FP_ARG - printf arguments for &struct drm_rect in 16.16 fixed point
90 (r)->x1 >> 16, (((r)->x1 & 0xffff) * 15625) >> 10, \
91 (r)->y1 >> 16, (((r)->y1 & 0xffff) * 15625) >> 10
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/linux/Documentation/ABI/testing/
H A Dsysfs-class-thermal61 E.g. it can be one of critical, hot, passive, `active[0-*]`
84 The trip point in this thermal zone which `cdev[0-*]` is
85 associated with; -1 means the cooling device is not
92 The influence of `cdev[0-*]` in this thermal zone. This value
124 Documentation/driver-api/thermal/power_allocator.rst
133 Documentation/driver-api/thermal/power_allocator.rst
143 Documentation/driver-api/thermal/power_allocator.rst
153 Documentation/driver-api/thermal/power_allocator.rst
165 Documentation/driver-api/thermal/power_allocator.rst
194 Documentation/driver-api/thermal/power_allocator.rst
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/linux/arch/x86/include/asm/
H A Dvmxfeatures.h1 /* SPDX-License-Identifier: GPL-2.0 */
8 #define NVMXINTS 5 /* N 32-bit words worth of info */
16 /* Pin-Based VM-Execution Controls, EPT/VPID, APIC and VM-Functions, word 0 */
17 #define VMX_FEATURE_INTR_EXITING ( 0*32+ 0) /* VM-Exit on vectored interrupts */
18 #define VMX_FEATURE_NMI_EXITING ( 0*32+ 3) /* VM-Exit on NMIs */
23 /* EPT/VPID features, scattered to bits 16-23 */
28 #define VMX_FEATURE_EPT_5LEVEL ( 0*32+ 20) /* "ept_5level" 5-level EPT paging */
30 /* Aggregated APIC features 24-27 */
34 /* VM-Functions, shifted to bits 28-31 */
37 /* Primary Processor-Based VM-Execution Controls, word 1 */
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/linux/tools/testing/selftests/bpf/progs/
H A Dcore_reloc_types.h31 /* we have test_progs[-flavor], so cut flavor part */
259 /* two flavors of same struct with incompatible layout for b.b.b */
287 /* two flavors of same struct having one of a.a.a and b.b.b, but not both */
450 /* zero-sized array, but not at the end */
734 /* non-bitfields */
742 uint16_t ub1: 3; /* 1 -> 3 */
743 uint32_t ub2: 20; /* 2 -> 20 */
744 uint8_t ub7: 1; /* 7 -> 1 */
746 int8_t sb4: 1; /* 4 -> 1 */
747 int32_t sb20: 30; /* 20 -> 30 */
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/linux/Documentation/userspace-api/media/mediactl/
H A Dmedia-types.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _media-controller-types:
10 .. _media-entity-functions:
11 .. _MEDIA-ENT-F-UNKNOWN:
12 .. _MEDIA-ENT-F-V4L2-SUBDEV-UNKNOWN:
13 .. _MEDIA-ENT-F-IO-V4L:
14 .. _MEDIA-ENT-F-IO-VBI:
15 .. _MEDIA-ENT-F-IO-SWRADIO:
16 .. _MEDIA-ENT-F-IO-DTV:
17 .. _MEDIA-ENT-F-DTV-DEMOD:
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/linux/kernel/sched/
H A Dcpupri.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * Copyright (C) 2007-2008 Novell
18 * a 2 dimensional bitmap (the first for priority class, the second for CPUs
20 * restrictions can find a suitable CPU with O(1) complexity (e.g. two bit
27 * p->rt_priority p->prio newpri cpupri
29 * -1 -1 (CPUPRI_INVALID)
48 cpupri = CPUPRI_INVALID; /* -1 */ in convert_prio()
52 cpupri = MAX_RT_PRIO-1 - prio; /* 1 ... 99 */ in convert_prio()
55 case MAX_RT_PRIO-1: in convert_prio()
70 struct cpupri_vec *vec = &cp->pri_to_cpu[idx]; in __cpupri_find()
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