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/Linux-v6.1/Documentation/userspace-api/media/v4l/
Dpixfmt-z16.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-PIX-FMT-Z16:
10 16-bit depth data with distance values at each pixel
16 This is a 16-bit format, representing depth data. Each pixel is a
19 is stored in a 16-bit word in the little endian byte order.
27 .. flat-table::
28 :header-rows: 0
29 :stub-columns: 0
31 * - start + 0:
32 - Z\ :sub:`00low`
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/Linux-v6.1/include/linux/
Dzorro.h2 * linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions
4 * Copyright (C) 1995--2003 Geert Uytterhoeven
50 int (*probe)(struct zorro_dev *z, const struct zorro_device_id *id); /* New device inserted */
51 … void (*remove)(struct zorro_dev *z); /* Device removed (NULL if not a hot-plug capable driver) */
62 /* New-style probing */
72 * Minimal information about a Zorro device, passed from bootinfo
94 #define zorro_resource_start(z) ((z)->resource.start) argument
95 #define zorro_resource_end(z) ((z)->resource.end) argument
96 #define zorro_resource_len(z) (resource_size(&(z)->resource)) argument
97 #define zorro_resource_flags(z) ((z)->resource.flags) argument
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/Linux-v6.1/Documentation/arm/nwfpe/
Dnetwinder-fpe.rst14 {P|M|Z} = {round to +infinity,round to -infinity,round to zero},
20 ------------------------------------------------------------
22 LDF/STF - load and store floating
30 LFM/SFM - load and store multiple floating
47 ----------------------------------------------------------------
51 FLT{cond}<S,D,E>{P,M,Z} Fn, Rd Convert integer to floating point
52 FIX{cond}{P,M,Z} Rd, Fn Convert floating point to integer
76 ---------------------------------------------------
80 ADF{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - add
81 SUF{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - subtract
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Dtodo.rst6 POW{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - power
7 RPW{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - reverse power
8 POL{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - polar angle (arctan2)
10 LOG{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - logarithm to base 10
11 LGN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - logarithm to base e
12 EXP{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - exponent
13 SIN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - sine
14 COS{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - cosine
15 TAN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - tangent
16 ASN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - arcsine
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/Linux-v6.1/Documentation/devicetree/bindings/iio/
Dmount-matrix.txt2 * is the definition of +/- values practical or counterintuitive?
5 * should we have HOWTO engineer a correct matrix for a new device (without comparing to a different…
12 The mounting matrix is a device tree property used to orient any device
13 that produce three-dimensional data in relation to the world where it is
17 reference into the device frame of reference using a translation matrix as
20 The typical usecase is that where a component has an internal representation
21 of the (x,y,z) triplets, such as different registers to read these coordinates,
22 and thus implying that the component should be mounted in a certain orientation
25 For example a device with some kind of screen, where the user is supposed to
28 reference to (x,y,z) orientation, with (x,y) corresponding to these axes on the
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/Linux-v6.1/drivers/zorro/
Dzorro-driver.c6 * Loosely based on drivers/pci/pci-driver.c
21 * zorro_match_device - Tell if a Zorro device structure has a matching
26 * Used by a driver to check whether a Zorro device present in the
33 const struct zorro_dev *z) in zorro_match_device() argument
35 while (ids->id) { in zorro_match_device()
36 if (ids->id == ZORRO_WILDCARD || ids->id == z->id) in zorro_match_device()
47 struct zorro_driver *drv = to_zorro_driver(dev->driver); in zorro_device_probe()
48 struct zorro_dev *z = to_zorro_dev(dev); in zorro_device_probe() local
50 if (drv->probe) { in zorro_device_probe()
53 id = zorro_match_device(drv->id_table, z); in zorro_device_probe()
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Dzorro.c4 * Copyright (C) 1995-2003 Geert Uytterhoeven
19 #include <linux/dma-mapping.h>
54 struct zorro_dev *z; in zorro_find_device() local
59 for (z = from ? from+1 : &zorro_autocon[0]; in zorro_find_device()
60 z < zorro_autocon+zorro_num_autocon; in zorro_find_device()
61 z++) in zorro_find_device()
62 if (id == ZORRO_WILDCARD || id == z->id) in zorro_find_device()
63 return z; in zorro_find_device()
71 * by the system. Every bit represents a 64K chunk, for a maximum of 8MB
72 * (128 chunks, physical 0x00200000-0x009fffff).
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Dzorro-sysfs.c6 * Loosely based on drivers/pci/pci-sysfs.c
29 struct zorro_dev *z; \
31 z = to_zorro_dev(dev); \
32 return sprintf(buf, format_string, z->field); \
44 struct zorro_dev *z; in serial_show() local
46 z = to_zorro_dev(dev); in serial_show()
47 return sprintf(buf, "0x%08x\n", be32_to_cpu(z->rom.er_SerialNumber)); in serial_show()
54 struct zorro_dev *z = to_zorro_dev(dev); in resource_show() local
57 (unsigned long)zorro_resource_start(z), in resource_show()
58 (unsigned long)zorro_resource_end(z), in resource_show()
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/Linux-v6.1/mm/
Dshuffle.c1 // SPDX-License-Identifier: GPL-2.0
20 return -EINVAL; in shuffle_param_set()
21 if (*(bool *)kp->arg) in shuffle_param_set()
33 * For two pages to be swapped in the shuffle, they must be free (on a
42 * Given we're dealing with randomly selected pfns in a zone we in shuffle_valid_page()
54 /* ...is the page free and currently on a free_area list? */ in shuffle_valid_page()
69 * Fisher-Yates shuffle the freelist which prescribes iterating through an
71 * the span, end_pfn - start_pfn.
74 * of bias in the distribution, like modulo bias or pseudo-random number
77 * be a perfect shuffle.
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/Linux-v6.1/drivers/md/
Ddm-zoned.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 #include <linux/device-mapper.h>
14 #include <linux/dm-kcopyd.h>
21 #include <linux/radix-tree.h>
25 * dm-zoned creates block devices with 4KB blocks, always.
29 #define DMZ_BLOCK_MASK (DMZ_BLOCK_SIZE - 1)
33 #define DMZ_BLOCK_MASK_BITS (DMZ_BLOCK_SIZE_BITS - 1)
35 #define DMZ_BLOCK_SECTORS_SHIFT (DMZ_BLOCK_SHIFT - SECTOR_SHIFT)
37 #define DMZ_BLOCK_SECTORS_MASK (DMZ_BLOCK_SECTORS - 1)
40 * 4KB block <-> 512B sector conversion.
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/Linux-v6.1/lib/mpi/
Dec.c1 /* ec.c - Elliptic Curve functions
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * You should have received a copy of the GNU Lesser General Public
21 #include "mpi-internal.h"
24 #define point_init(a) mpi_point_init((a)) argument
25 #define point_free(a) mpi_point_free_parts((a)) argument
33 /* Create a new point option. NBITS gives the size in bits of one
34 * coordinate; it is only used to pre-allocate some resources and
35 * might also be passed as 0 to use a default value.
60 /* Initialize the fields of a point object. gcry_mpi_point_free_parts
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/Linux-v6.1/Documentation/devicetree/bindings/iio/accel/
Dlis302.txt3 This device is matched via its bus drivers, and has a number of properties
8 - compatible: should be set to "st,lis3lv02d-spi"
9 - reg: the chipselect index
10 - spi-max-frequency: maximal bus speed, should be set to 1000000 unless
12 - interrupts: the interrupt generated by the device
15 - compatible: should be set to "st,lis3lv02d"
16 - reg: i2c slave address
17 - Vdd-supply: The input supply for Vdd
18 - Vdd_IO-supply: The input supply for Vdd_IO
23 - st,click-single-{x,y,z}: if present, tells the device to issue an
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/Linux-v6.1/drivers/s390/char/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
17 Include support for using an IBM 3270 terminal as a Linux tty.
31 Include support for using an IBM 3270 terminal as a Linux system
39 Include support for IBM 3215 line-mode terminals.
46 Include support for using an IBM 3215 line-mode terminal as a
57 Include support for IBM SCLP line-mode terminals.
64 Include support for using an IBM HWC line-mode terminal as the Linux
69 prompt "Support for SCLP VT220-compatible terminal"
72 Include support for an IBM SCLP VT220-compatible terminal.
76 prompt "Support for console on SCLP VT220-compatible terminal"
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/Linux-v6.1/arch/m68k/fpsp040/
Dsatan.S5 | input value. satand does the same except the input value is a
8 | Input: Double-extended value in memory location pointed to by address
11 | Output: Arctan(X) returned in floating-point register Fp0.
25 | Step 2. Let X = sgn * 2**k * 1.xxxxxxxx...x. Note that k = -4, -3,..., or 3.
27 | of X with a bit-1 attached at the 6-th bit position. Define u
28 | to be u = (X-F) / (1 + X*F).
30 | Step 3. Approximate arctan(u) by a polynomial poly.
32 | Step 4. Return arctan(F) + poly, arctan(F) is fetched from a table of values
39 | Step 7. Define X' = -1/X. Approximate arctan(X') by an odd polynomial in X'.
232 |--ENTRY POINT FOR ATAN(X) FOR DENORMALIZED ARGUMENT
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/Linux-v6.1/crypto/
Dfcrypt.c13 * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 /* Rotate right two 32 bit numbers as a 56 bit number */
60 u32 t = lo & ((1 << n) - 1); \
61 lo = (lo >> n) | ((hi & ((1 << n) - 1)) << (32 - n)); \
62 hi = (hi >> n) | (t << (24-n)); \
65 /* Rotate right one 64 bit number as a 56 bit number */
66 #define ror56_64(k, n) (k = (k >> n) | ((k & ((1 << n) - 1)) << (56 - n)))
70 * /afs/transarc.com/public/afsps/afs.rel31b.export-src/rxkad/sboxes.h
72 #undef Z
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/Linux-v6.1/Documentation/ABI/testing/
Dsysfs-ata3 Provide a place in sysfs for storing the ATA topology of the
8 -------------------------------
10 For each port, a directory ataX is created where X is the ata_port_id of the
20 nr_pmp_links: (RO) If a SATA Port Multiplier (PM) is
35 persistent links in /dev/disk/by-path.
38 -------------------------------
40 Behind each port, there is a ata_link. If there is a SATA PM in the topology, 15
43 If a link is behind a port, the directory name is linkX, where X is ata_port_id
44 of the port. If a link is behind a PM, its name is linkX.Y where X is
65 ---------------------------------
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/Linux-v6.1/Documentation/driver-api/
Dzorro.rst5 :Author: Written by Geert Uytterhoeven <geert@linux-m68k.org>
10 ------------
13 AutoConfig(tm), it's 100% Plug-and-Play.
17 - The Zorro II address space is 24-bit and lies within the first 16 MB of the
20 - Zorro III is a 32-bit extension of Zorro II, which is backwards compatible
25 -------------------------
27 Zorro devices are found by calling ``zorro_find_device()``, which returns a
28 pointer to the ``next`` Zorro device with the specified Zorro ID. A probe loop
31 struct zorro_dev *z = NULL;
33 while ((z = zorro_find_device(ZORRO_PROD_xxx, z))) {
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/Linux-v6.1/include/linux/input/
Dadxl34x.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
20 * X,Y,Z Axis Offset:
22 * form with a scale factor of 15.6 mg/LSB (i.e. 0x7F = +2 g)
30 * TAP_X/Y/Z Enable: Setting TAP_X, Y, or Z Enable enables X,
31 * Y, or Z participation in Tap detection. A '0' excludes the
50 * (i.e. 0xFF = +16 g). A zero value may result in undesirable
60 * to qualify as a tap event. The scale factor is 625 us/LSB. A zero
69 * from the detection of a tap event to the opening of the time
70 * window tap_window for a possible second tap event. The scale
71 * factor is 1.25 ms/LSB. A zero value will disable the Double Tap
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/Linux-v6.1/drivers/i2c/busses/
Di2c-icy.c1 // SPDX-License-Identifier: GPL-2.0
3 * I2C driver for stand-alone PCF8584 style adapters on Zorro cards
8 * There has been a modern community re-print of this design in 2019:
11 * The card is basically a Philips PCF8584 connected straight to the
17 * This started as a fork of i2c-elektor.c and has evolved since.
18 * Thanks go to its authors for providing a base to grow on.
23 * As it turns out, i2c-algo-pcf is really written with i2c-elektor's
24 * edge-triggered ISA interrupts in mind, while the Amiga's Zorro bus has
25 * level-triggered interrupts. This means that once an interrupt occurs, we
29 * However, because of the PCF8584's host-side protocol, there is no good
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/Linux-v6.1/tools/testing/selftests/bpf/progs/
Dget_func_args_test.c1 // SPDX-License-Identifier: GPL-2.0
14 __u64 a = 0, z = 0, ret = 0; in BPF_PROG() local
20 err = bpf_get_func_arg(ctx, 0, &a); in BPF_PROG()
24 * to save it, like for 'int a' with 32-bit mov like: in BPF_PROG()
26 * mov %edi,-0x8(%rbp) in BPF_PROG()
30 test1_result &= err == 0 && ((int) a == 1); in BPF_PROG()
33 err = bpf_get_func_arg(ctx, 1, &z); in BPF_PROG()
34 test1_result &= err == -EINVAL; in BPF_PROG()
38 test1_result &= err == -EOPNOTSUPP; in BPF_PROG()
47 __u64 a = 0, b = 0, z = 0, ret = 0; in BPF_PROG() local
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Dbtf_dump_test_case_namespacing.c1 // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
4 * BTF-to-C dumper test validating no name versioning happens between
9 /* ----- START-EXPECTED-OUTPUT ----- */
30 struct A {}; struct
35 A = 1, enumerator
44 enum Z;
50 typedef int Z; typedef
52 /*------ END-EXPECTED-OUTPUT ------ */
61 struct A a; in f()
66 enum Z *z; in f()
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/Linux-v6.1/Documentation/s390/
Dmonreader.rst2 Linux API for read access to z/VM Monitor Records
5 Date : 2004-Nov-26
14 This item delivers a new Linux API in the form of a misc char device that is
15 usable from user space and allows read access to the z/VM Monitor Records
16 collected by the `*MONITOR` System Service of z/VM.
21 The z/VM guest on which you want to access this API needs to be configured in
25 This item will use the IUCV device driver to access the z/VM services, so you
26 need a kernel with IUCV support. You also need z/VM version 4.4 or 5.1.
33 See also "CP Command and Utility Reference" (SC24-6081-00) for more information
35 and Administration" (SC24-6116-00) for more information on DCSSes.
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/Linux-v6.1/drivers/net/ethernet/8390/
Dhydra.c11 /* The Amiganet is a Zorro-II board made by Hydra Systems. It contains a */
12 /* NS8390 NIC (network interface controller) clone, 16 or 64K on-board RAM */
13 /* and 10BASE-2 (thin coax) and AUI connectors. */
33 #define EI_SHIFT(x) (ei_local->reg_offset[x])
53 #define WORDSWAP(a) ((((a)>>8)&0xff) | ((a)<<8)) argument
56 static int hydra_init_one(struct zorro_dev *z,
58 static int hydra_init(struct zorro_dev *z);
68 static void hydra_remove_one(struct zorro_dev *z);
83 static int hydra_init_one(struct zorro_dev *z, in hydra_init_one() argument
88 if (!request_mem_region(z->resource.start, 0x10000, "Hydra")) in hydra_init_one()
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/Linux-v6.1/tools/memory-model/litmus-tests/
DZ6.0+pooncerelease+poacquirerelease+fencembonceonce.litmus6 * This litmus test shows that a release-acquire chain, while sufficient
7 * when there is but one non-reads-from (AKA non-rf) link, does not suffice
9 * P0's write, which means that there are two non-rf links: P1() to P2()
10 * is a write-to-write link (AKA a "coherence" or just "co" link) and P2()
11 * to P0() is a read-to-write link (AKA a "from-reads" or just "fr" link).
12 * When there are two or more non-rf links, you typically will need one
13 * full barrier for each non-rf link. (Exceptions include some cases
25 P1(int *y, int *z)
30 smp_store_release(z, 1);
33 P2(int *x, int *z)
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/Linux-v6.1/arch/arm/nwfpe/
Dsoftfloat-macros5 This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
11 National Science Foundation under grant MIP-9311980. The original version
12 of this code was written as part of a project to build a fixed-point vector
16 http://www.jhauser.us/arithmetic/SoftFloat-2b/SoftFloat-source.txt
33 -------------------------------------------------------------------------------
34 Shifts `a' right by the number of bits given in `count'. If any nonzero
38 result will be either 0 or 1, depending on whether `a' is zero or nonzero.
40 -------------------------------------------------------------------------------
42 INLINE void shift32RightJamming( bits32 a, int16 count, bits32 *zPtr )
44 bits32 z;
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