| /linux/arch/alpha/lib/ |
| H A D | ev6-clear_user.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * arch/alpha/lib/ev6-clear_user.S
4 * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
8 * We have to make sure that $0 is always up-to-date and contains the
9 * right "bytes left to zero" value (and that it is updated only _after_
16 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
18 * E - either cluster
19 * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
20 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
25 * it's going to be worth the effort to hand-unroll a big loop, and use wh64.
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| H A D | ev6-memset.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * arch/alpha/lib/ev6-memset.S
8 * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
13 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
15 * E - either cluster
16 * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
17 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
48 * undertake a major re-write to interleave the constant materialization
49 * with other parts of the fall-through code. This is important, even
88 subq $16,$3,$16 # E : $16 is new aligned destination
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| H A D | ev6-memchr.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * arch/alpha/lib/ev6-memchr.S
5 * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
9 * - memory accessed as aligned quadwords only
10 * - uses cmpbge to compare 8 bytes in parallel
11 * - does binary search to find 0 byte in last
18 * - only minimum number of quadwords may be accessed
19 * - the third argument is an unsigned long
24 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
26 * E - either cluster
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| H A D | ev6-memcpy.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * arch/alpha/lib/ev6-memcpy.S
4 * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
8 * - memory accessed as aligned quadwords only
9 * - uses bcmpge to compare 8 bytes in parallel
14 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
16 * E - either cluster
17 * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
18 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
21 * $1,$2, - scratch
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| H A D | stxncpy.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
6 * Copy no more than COUNT bytes of the null-terminated string from
27 * a2 = the number of full words left in COUNT
29 * Furthermore, v0, a3-a5, t11, and $at are untouched.
42 aligned copy in its own procedure descriptor */
55 lda t2, -1 # e1 : build a mask against false zero
79 the end-of-count bit is set in t8 iff it applies.
107 /* Add the end-of-count bit to the eos detection bitmask. */
121 /* Are source and destination co-aligned? */
128 srl a2, 3, a2 # e0 : a2 = loop counter = (count - 1)/8
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| H A D | memchr.S | 17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
22 - memory accessed as aligned quadwords only
23 - uses cmpbge to compare 8 bytes in parallel
24 - does binary search to find 0 byte in last
31 - only minimum number of quadwords may be accessed
32 - the third argument is an unsigned long
44 # Hack -- if someone passes in (size_t)-1, hoping to just
47 # that we will never have a 56-bit address space, cropping
49 zap $18, 0x80, $5 #-e0 :
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| H A D | ev6-stxncpy.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * arch/alpha/lib/ev6-stxncpy.S
4 * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
6 * Copy no more than COUNT bytes of the null-terminated string from
27 * a2 = the number of full words left in COUNT
29 * Furthermore, v0, a3-a5, t11, and $at are untouched.
34 * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
36 * E - either cluster
37 * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
38 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
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| /linux/include/linux/ |
| H A D | regset.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * User-mode machine state access
22 size_t left; member
27 if (s->left) { in membuf_zero()
28 if (size > s->left) in membuf_zero()
29 size = s->left; in membuf_zero()
30 memset(s->p, 0, size); in membuf_zero()
31 s->p += size; in membuf_zero()
32 s->left -= size; in membuf_zero()
34 return s->left; in membuf_zero()
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| /linux/arch/sparc/lib/ |
| H A D | M7memcpy.S | 15 * Fast assembler language version of the following C-program for memcpy
16 * which represents the `standard' for the C-library.
26 * } while (--n != 0);
37 * if src & dst aligned on word boundary but not long word boundary,
39 * if src & dst aligned on long word boundary
41 * if src & dst not aligned and length <= SHORTCHECK (SHORTCHECK=14)
59 * finish_long: src/dst aligned on 8 bytes
60 * copy with ldx/stx in 8-way unrolled loop;
61 * copy final 0-63 bytes; exit with dst addr
62 * } else { src/dst aligned; count > MED_MAX
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| H A D | M7memset.S | 15 * Fast assembler language version of the following C-program for memset
16 * which represents the `standard' for the C-library.
25 * } while (--n != 0);
35 * Then store as many 4-byte chunks, followed by trailing bytes.
39 * store 8-bytes chunks to align the address on 64 byte boundary
42 * 64-byte cache line to zero which will also clear the
49 * In the main loop, continue pre-setting the first long
56 * store remaining data in 64-byte chunks until less than
59 * Store as many 8-byte chunks, followed by trailing bytes.
109 .size M7clear_page,.-M7clear_page
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| /linux/Documentation/input/ |
| H A D | gamepad.rst | 1 ---------------------------
3 ---------------------------
11 having user-space deal with different button-mappings for each gamepad, this
25 | <===DP===> |SE| |ST| (W) -|- (E) | |
35 D-Pad Left Right Action Pad
43 - Action-Pad
44 4 buttons in diamonds-shape (on the right side). The buttons are
47 - D-Pad (Direction-pad)
48 4 buttons (on the left side) that point up, down, left and right.
49 - Menu-Pad
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| /linux/drivers/infiniband/hw/hfi1/ |
| H A D | pio_copy.c | 1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
8 /* additive distance between non-SOP and SOP space */
10 #define PIO_BLOCK_MASK (PIO_BLOCK_SIZE - 1)
15 * pio_copy - copy data block to MMIO space
19 * @from: source, must be 8 byte aligned
20 * @count: number of DWORD (32-bit) quantities to copy from source
27 * o pbuf->start always starts on a block boundary
33 void __iomem *dest = pbuf->start + SOP_DISTANCE; in pio_copy()
35 void __iomem *dend; /* 8-byte data end */ in pio_copy()
41 /* calculate where the QWORD data ends - in SOP=1 space */ in pio_copy()
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| /linux/Documentation/arch/sparc/oradax/ |
| H A D | dax-hv-api.txt | 3 Publication date 2017-09-25 08:21
5 Extracted via "pdftotext -f 547 -l 572 -layout sun4v_20170925.pdf"
16 live-migration and other system management activities.
20 …high speed processoring of database-centric operations. The coprocessors may support one or more of
28 …e Completion Area and, unless execution order is specifically restricted through the use of serial-
45 …device node in the guest MD (Section 8.24.17, “Database Analytics Accelerators (DAX) virtual-device
51 36.1.1.1. "ORCL,sun4v-dax" Device Compatibility
54 • No-op/Sync
81 36.1.1.2. "ORCL,sun4v-dax-fc" Device Compatibility
82 … "ORCL,sun4v-dax-fc" is compatible with the "ORCL,sun4v-dax" interface, and includes additional CCB
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| /linux/arch/riscv/lib/ |
| H A D | uaccess.S | 4 #include <asm/asm-extable.h>
7 #include <asm/alternative-macros.h>
65 * a0 - start of uncopied dst
66 * a1 - start of uncopied src
67 * a2 - size
68 * t0 - end of uncopied dst
76 li a3, 9*SZREG-1 /* size must >= (word_copy stride + SZREG-1) */
80 * Copy first bytes until dst is aligned to word boundary.
81 * a0 - start of dst
82 * t1 - start of aligned dst
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| H A D | memmove.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
12 * a0 - dest
15 * a0 - Inclusive first byte of dest
16 * a1 - Inclusive first byte of src
17 * a2 - Length of copy n
22 * Note: This currently only works on little-endian.
23 * To port to big-endian, reverse the direction of shifts
33 * Forward Copy: a1 - Index counter of src
34 * Reverse Copy: a4 - Index counter of src
35 * Forward Copy: t3 - Index counter of dest
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| /linux/tools/testing/selftests/powerpc/stringloops/ |
| H A D | memcmp_64.S | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
8 #include <asm/ppc-opcode.h>
42 std r3,-STACKFRAMESIZE+STK_REG(R31)(r1); \
43 std r4,-STACKFRAMESIZE+STK_REG(R30)(r1); \
44 std r5,-STACKFRAMESIZE+STK_REG(R29)(r1); \
46 stdu r1,-STACKFRAMESIZE(r1); \
58 std r3,-STACKFRAMESIZE+STK_REG(R31)(r1); \
59 std r4,-STACKFRAMESIZE+STK_REG(R30)(r1); \
60 std r5,-STACKFRAMESIZE+STK_REG(R29)(r1); \
62 stdu r1,-STACKFRAMESIZE(r1); \
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| /linux/arch/powerpc/lib/ |
| H A D | memcmp_64.S | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
8 #include <asm/ppc-opcode.h>
42 std r3,-STACKFRAMESIZE+STK_REG(R31)(r1); \
43 std r4,-STACKFRAMESIZE+STK_REG(R30)(r1); \
44 std r5,-STACKFRAMESIZE+STK_REG(R29)(r1); \
46 stdu r1,-STACKFRAMESIZE(r1); \
58 std r3,-STACKFRAMESIZE+STK_REG(R31)(r1); \
59 std r4,-STACKFRAMESIZE+STK_REG(R30)(r1); \
60 std r5,-STACKFRAMESIZE+STK_REG(R29)(r1); \
62 stdu r1,-STACKFRAMESIZE(r1); \
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| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | selection-api-configuration.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
15 time the cropping/composing rectangles may have to be aligned, and both
20 :ref:`constraint flags <v4l2-selection-flags>`.
26 See figure :ref:`sel-targets-capture` for examples of the selection
30 The range of coordinates of the top left corner, width and height of
32 target. It is recommended for the driver developers to put the top/left
36 The top left corner, width and height of the source rectangle, that is
51 coordinates are expressed in pixels. The rectangle's top/left corner
63 :ref:`constraint flags <v4l2-selection-flags>`.
91 All coordinates are expressed in pixels. The top/left corner is always
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| /linux/Documentation/devicetree/bindings/media/ |
| H A D | video-interface-devices.yaml | 1 # 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/drivers/video/fbdev/kyro/ |
| H A D | STG4000OverlayDevice.c | 57 /*clipped on-screen pixel position of overlay */
63 /*clipped pixel pos of source data within buffer thses need to be 128 bit word aligned */
69 /* on-screen pixel position of overlay */
152 return -EINVAL; in CreateOverlaySurface()
155 /* Stride in 16 byte words - 16Bpp */ in CreateOverlaySurface()
226 * Make sure that LUT not used - ?????? in CreateOverlaySurface()
280 return -EINVAL; in SetOverlayBlendMode()
309 ulBits--; in Overlap()
318 u32 left, u32 top, in SetOverlayViewPort() argument
348 srcDest.ulSrcX2 = ovlWidth - 1; in SetOverlayViewPort()
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| /linux/drivers/mtd/devices/ |
| H A D | ms02-nv.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * DEC MS02-NV (54-20948-01) battery backed-up NVRAM module for
16 * 0x000000 - 0x3fffff SRAM
17 * 0x400000 - 0x7fffff CSR
22 * 0x000000 - 0x0003ff diagnostic area, destroyed upon a reboot
23 * 0x000400 - ENDofRAM storage area, available to operating systems
31 * for the start address of the user-available is 0x001000 which is
32 * nicely page aligned. The area between 0x000404 and 0x000fff may
36 * operating system, a magic ID to distinguish a MS02-NV board from
42 * The firmware only handles the MS02-NV board if installed in the
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| /linux/tools/iio/ |
| H A D | iio_generic_buffer.c | 1 // SPDX-License-Identifier: GPL-2.0-only
12 * generic_buffer -n <device_name> -t <trigger_name>
38 * enum autochan - state for the automatic channel enabling mechanism
47 * size_from_channelarray() - calculate the storage size of a scan
66 channels[i].location = bytes - bytes % channels[i].bytes in size_from_channelarray()
73 * We want the data in next sample to also be properly aligned so in size_from_channelarray()
79 bytes += max - misalignment; in size_from_channelarray()
88 * of left aligned data in print1byte()
90 input >>= info->shift; in print1byte()
91 input &= info->mask; in print1byte()
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| /linux/lib/crc/ |
| H A D | crc4.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * crc4.c - simple crc-4 calculations.
16 * crc4 - calculate the 4-bit crc of a value.
23 * The @x value is treated as left-aligned, and bits above @bits are ignored
31 x &= (1ull << bits) - 1; in crc4()
33 /* Align to 4-bits */ in crc4()
36 /* Calculate crc4 over four-bit nibbles, starting at the MSbit */ in crc4()
37 for (i = bits - 4; i >= 0; i -= 4) in crc4()
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| H A D | crc7.c | 1 // SPDX-License-Identifier: GPL-2.0-only
12 * Table for CRC-7 (polynomial x^7 + x^3 + 1).
13 * This is a big-endian CRC (msbit is highest power of x),
14 * aligned so the msbit of the byte is the x^6 coefficient
53 * crc7_be - update the CRC7 for the data buffer
60 * The CRC7 is left-aligned in the byte (the lsbit is always 0), as that
66 while (len--) in crc7_be()
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| /linux/arch/hexagon/lib/ |
| H A D | memcpy.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
12 * and length from 0 to 2^32-1
23 * DJH 6/ 1/09 Version 1.1 modified ABI to inlcude R16-R19
25 * DJH 10/14/09 Version 1.3 added special loop for aligned case, was
28 * occurring if only 1 left outstanding, fixes bug
36 * aligned to dword boundaries,underwriting by 1
63 * ptr8_in = (s64 *) &ptr_in[-offset]; //read in the aligned pointers
70 * prolog = 32 - ((int) ptr_out);
73 * kernel = len - prolog;
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