Home
last modified time | relevance | path

Searched +full:zero +full:- +full:based (Results 1 – 25 of 1065) sorted by relevance

12345678910>>...43

/Linux-v6.1/Documentation/devicetree/bindings/arm/bcm/
Dbcm2835.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eric Anholt <eric@anholt.net>
11 - Stefan Wahren <wahrenst@gmx.net>
18 - description: BCM2711 based Boards
20 - enum:
21 - raspberrypi,400
22 - raspberrypi,4-compute-module
23 - raspberrypi,4-model-b
[all …]
/Linux-v6.1/arch/arc/include/asm/
Dbitops.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
23 * This is a pure count, so (1-32) or (0-31) doesn't apply
24 * It could be 0 to 32, based on num of 0's in there
50 r -= 16; in constant_fls()
54 r -= 8; in constant_fls()
58 r -= 4; in constant_fls()
62 r -= 2; in constant_fls()
65 r -= 1; in constant_fls()
71 * @result: [1-32]
[all …]
/Linux-v6.1/Documentation/fb/
Dapi.rst9 ---------------
12 with frame buffer devices. In-kernel APIs between device drivers and the frame
22 ---------------
36 - FB_CAP_FOURCC
38 The driver supports the four character code (FOURCC) based format setting API.
44 --------------------
46 Pixels are stored in memory in hardware-dependent formats. Applications need
58 - FB_TYPE_PACKED_PIXELS
67 - FB_TYPE_PLANES
75 - FB_TYPE_INTERLEAVED_PLANES
[all …]
/Linux-v6.1/drivers/usb/gadget/udc/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
7 # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
9 # - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
10 # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
11 # - Some systems have both kinds of controllers.
13 # With help from a special transceiver and a "Mini-AB" jack, systems with
14 # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
22 # - integrated/SOC controllers first
23 # - licensed IP used in both SOC and discrete versions
24 # - discrete ones (including all PCI-only controllers)
[all …]
/Linux-v6.1/drivers/thermal/
Dcpuidle_cooling.c1 // SPDX-License-Identifier: GPL-2.0
20 * struct cpuidle_cooling_device - data for the idle cooling device
30 * cpuidle_cooling_runtime - Running time computation
32 * @state: a percentile based number
36 * means the running duration is zero. If we have a 50% ratio
42 * running = idle x ((100 / ratio) - 1)
46 * running = (idle x 100) / ratio - idle
51 * Return: An unsigned int for a usec based runtime duration.
59 return ((idle_duration_us * 100) / state) - idle_duration_us; in cpuidle_cooling_runtime()
63 * cpuidle_cooling_get_max_state - Get the maximum state
[all …]
/Linux-v6.1/Documentation/devicetree/bindings/mtd/
Dfsmc-nand.txt5 - compatible : "st,spear600-fsmc-nand", "stericsson,fsmc-nand"
6 - reg : Address range of the mtd chip
7 - reg-names: Should contain the reg names "fsmc_regs", "nand_data", "nand_addr" and "nand_cmd"
10 - bank-width : Width (in bytes) of the device. If not present, the width
12 - nand-skip-bbtscan: Indicates the BBT scanning should be skipped
13 - timings: array of 6 bytes for NAND timings. The meanings of these bytes
16 are valid. Zero means one clockcycle, 15 means 16 clock
20 kept in Hi-Z (tristate) after the start of a write access.
21 Only valid for write transactions. Zero means zero cycles,
24 when writing) after the command deassertation. Zero means
[all …]
/Linux-v6.1/net/netlabel/
Dnetlabel_cipso_v4.c1 // SPDX-License-Identifier: GPL-2.0-or-later
9 * Author: Paul Moore <paul@paul-moore.com>
13 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
70 * netlbl_cipsov4_add_common - Parse the common sections of a ADD message
76 * in @doi_def. Returns zero on success, negative values on failure.
86 doi_def->doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]); in netlbl_cipsov4_add_common()
88 if (nla_validate_nested_deprecated(info->attrs[NLBL_CIPSOV4_A_TAGLST], in netlbl_cipsov4_add_common()
92 return -EINVAL; in netlbl_cipsov4_add_common()
94 nla_for_each_nested(nla, info->attrs[NLBL_CIPSOV4_A_TAGLST], nla_rem) in netlbl_cipsov4_add_common()
97 return -EINVAL; in netlbl_cipsov4_add_common()
[all …]
Dnetlabel_calipso.c1 // SPDX-License-Identifier: GPL-2.0-or-later
9 * Authors: Paul Moore <paul@paul-moore.com>
13 /* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
60 * netlbl_calipso_add_pass - Adds a CALIPSO pass DOI definition
65 * Create a new CALIPSO_MAP_PASS DOI definition based on the given ADD message
66 * and add it to the CALIPSO engine. Return zero on success and non-zero on
78 return -ENOMEM; in netlbl_calipso_add_pass()
79 doi_def->type = CALIPSO_MAP_PASS; in netlbl_calipso_add_pass()
80 doi_def->doi = nla_get_u32(info->attrs[NLBL_CALIPSO_A_DOI]); in netlbl_calipso_add_pass()
89 * netlbl_calipso_add - Handle an ADD message
[all …]
/Linux-v6.1/arch/mips/include/asm/octeon/
Dcvmx-helper.h7 * Copyright (c) 2003-2008 Cavium Networks
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
37 #include <asm/octeon/cvmx-config.h>
38 #include <asm/octeon/cvmx-fpa.h>
39 #include <asm/octeon/cvmx-wqe.h>
64 #include <asm/octeon/cvmx-helper-errata.h>
65 #include <asm/octeon/cvmx-helper-loop.h>
66 #include <asm/octeon/cvmx-helper-npi.h>
67 #include <asm/octeon/cvmx-helper-rgmii.h>
[all …]
/Linux-v6.1/Documentation/admin-guide/media/
Dtechnisat.rst1 .. SPDX-License-Identifier: GPL-2.0
13 -----------------------------
19 .. code-block:: none
21 lspci -vvv for a PCI device (lsusb -vvv for an USB device) will show you for example:
29 -------------------
37 (except ``Simple tuner support`` for ATSC 3rd generation only -> see case 9 please).
41 - Main module part:
50 - Frontend / Tuner / Demodulator module part:
55 - SkyStar DVB-S Revision 2.3:
57 #) => ``Zarlink VP310/MT312/ZL10313 based``
[all …]
/Linux-v6.1/arch/arm/include/asm/
Dhugetlb-3level.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * arch/arm/include/asm/hugetlb-3level.h
7 * Based on arch/x86/include/asm/hugetlb.h.
15 * If our huge pte is non-zero then mark the valid bit.
16 * This allows pte_present(huge_ptep_get(ptep)) to return true for non-zero
/Linux-v6.1/Documentation/filesystems/ext4/
Dverity.rst1 .. SPDX-License-Identifier: GPL-2.0
4 ------------
6 ext4 supports fs-verity, which is a filesystem feature that provides
7 Merkle tree based hashing for individual readonly files. Most of
8 fs-verity is common to all filesystems that support it; see
10 fs-verity documentation. However, the on-disk layout of the verity
11 metadata is filesystem-specific. On ext4, the verity metadata is
14 - Zero-padding to the next 65536-byte boundary. This padding need not
15 actually be allocated on-disk, i.e. it may be a hole.
17 - The Merkle tree, as documented in
[all …]
/Linux-v6.1/tools/testing/selftests/vm/
Dgup_test.c93 int filed, i, opt, nr_pages = 1, thp = -1, write = 1, nthreads = 1, ret; in main()
95 char *file = "/dev/zero"; in main()
99 while ((opt = getopt(argc, argv, "m:r:n:F:f:abcj:tTLUuwWSHpz")) != -1) { in main()
114 * user's non-option arguments. in main()
116 * .which_pages is zero-based, so that zero can mean "do in main()
174 return -1; in main()
183 * ./gup_test -c 0 1 0x1001 in main()
191 * Do the 1-based indexing here, so that the user can in main()
192 * use normal 0-based indexing on the command line. in main()
213 if (gup_fd == -1) { in main()
/Linux-v6.1/mm/
Dgup_test.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
27 * Each non-zero entry is the number of the page (1-based: first page is
28 * page 1, so that zero entries mean "do nothing") from the .addr base.
/Linux-v6.1/tools/testing/selftests/bpf/
Dtest_dev_cgroup.c1 // SPDX-License-Identifier: GPL-2.0-only
21 #define TEST_CGROUP "/test-bpf-based-device-cgroup/"
57 /* All operations with /dev/zero and and /dev/urandom are allowed, in main()
60 assert(system("rm -f /tmp/test_dev_cgroup_null") == 0); in main()
62 assert(system("rm -f /tmp/test_dev_cgroup_null") == 0); in main()
64 /* /dev/zero is whitelisted */ in main()
65 assert(system("rm -f /tmp/test_dev_cgroup_zero") == 0); in main()
67 assert(system("rm -f /tmp/test_dev_cgroup_zero") == 0); in main()
69 assert(system("dd if=/dev/urandom of=/dev/zero count=64") == 0); in main()
75 assert(system("dd if=/dev/random of=/dev/zero count=64")); in main()
/Linux-v6.1/arch/arm/mach-zynq/
Dplatsmp.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (C) 2011-2013 Xilinx
8 * based on linux/arch/arm/mach-realview/platsmp.c
20 #include <linux/irqchip/arm-gic.h>
32 u32 trampoline_code_size = &zynq_secondary_trampoline_end - in zynq_cpun_start()
40 static u8 __iomem *zero; in zynq_cpun_start() local
41 u32 trampoline_size = &zynq_secondary_trampoline_jump - in zynq_cpun_start()
47 zero = ioremap(0, trampoline_code_size); in zynq_cpun_start()
48 if (!zero) { in zynq_cpun_start()
50 return -1; in zynq_cpun_start()
[all …]
/Linux-v6.1/include/linux/
Dfreelist.h1 /* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
10 * A simple CAS-based lock-free free list. Not the fastest thing in the world
15 * Adapted from: https://moodycamel.com/blog/2014/solving-the-aba-problem-for-lock-free-free-lists
33 * Since the refcount is zero, and nobody can increase it once it's in __freelist_add()
34 * zero (except us, and we run only one copy of this method per node at in __freelist_add()
37 * back above zero, then other threads could increase it (happens under in __freelist_add()
38 * heavy contention, when the refcount goes to zero in between a load in __freelist_add()
40 * something non-zero, then the refcount increment is done by the other in __freelist_add()
41 * thread) -- so if the CAS to add the node to the actual list fails, in __freelist_add()
43 * who puts the refcount back to zero (which could be us, hence the in __freelist_add()
[all …]
Dhighmem.h1 /* SPDX-License-Identifier: GPL-2.0 */
14 #include "highmem-internal.h"
17 * kmap - Map a page for long term usage
40 * kunmap - Unmap the virtual address mapped by kmap()
49 * kmap_to_page - Get the page for a kmap'ed address
57 * kmap_flush_unused - Flush all unused kmap mappings in order to
63 * kmap_local_page - Map a page for temporary usage
71 * management is stack based. The unmap has to be in the reverse order of
99 * kmap_local_folio - Map a page in this folio for temporary usage
104 * management is stack based. The unmap has to be in the reverse order of
[all …]
/Linux-v6.1/drivers/rtc/
Drtc-mxc_v2.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2004-2011 Freescale Semiconductor, Inc.
26 #define SRTC_LPSR_NVES BIT(14) /* lp non-valid state exit status */
51 * The caller should hold the pdata->lock
63 if (!--timeout) { in mxc_rtc_sync_lp_locked()
76 void __iomem *ioaddr = pdata->ioaddr; in mxc_rtc_interrupt()
80 spin_lock(&pdata->lock); in mxc_rtc_interrupt()
81 if (clk_enable(pdata->clk)) { in mxc_rtc_interrupt()
82 spin_unlock(&pdata->lock); in mxc_rtc_interrupt()
92 rtc_update_irq(pdata->rtc, 1, RTC_AF | RTC_IRQF); in mxc_rtc_interrupt()
[all …]
/Linux-v6.1/Documentation/devicetree/bindings/soc/fsl/cpm_qe/
Dcpm.txt10 - compatible : "fsl,cpm1", "fsl,cpm2", or "fsl,qe".
11 - reg : A 48-byte region beginning with CPCR.
15 #address-cells = <1>;
16 #size-cells = <1>;
17 #interrupt-cells = <2>;
18 compatible = "fsl,mpc8272-cpm", "fsl,cpm2";
24 - fsl,cpm-command : This value is ORed with the opcode and command flag
27 - fsl,cpm-brg : Indicates which baud rate generator the device
29 should be dynamically allocated. If zero, the
32 - reg : Unless otherwise specified, the first resource represents the
[all …]
/Linux-v6.1/arch/powerpc/boot/
Dplanetcore.h1 /* SPDX-License-Identifier: GPL-2.0 */
31 * Returns zero/NULL on failure, non-zero on success.
37 /* Updates the device tree local-mac-address properties based
42 /* Sets the linux,stdout-path in the /chosen node. This requires the
43 * linux,planetcore-label property in each serial node.
/Linux-v6.1/Documentation/block/
Dublk.rst1 .. SPDX-License-Identifier: GPL-2.0
13 new virtual block device such as ublk-qcow2 (there are several attempts of
18 - They can be written many programming languages.
19 - They can use libraries that are not available in the kernel.
20 - They can be debugged with tools familiar to application developers.
21 - Crashes do not kernel panic the machine.
22 - Bugs are likely to have a lower security impact than bugs in kernel
24 - They can be installed and updated independently of the kernel.
25 - They can be used to simulate block device easily with user specified
35 ``nbdublk`` [#userspace_nbdublk]_ based on ``libublksrv`` [#userspace_lib]_.
[all …]
/Linux-v6.1/Documentation/devicetree/bindings/mips/ingenic/
Ddevices.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Ingenic XBurst based Platforms Device Tree Bindings
10 - 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
21 - description: Qi Hardware Ben NanoNote
23 - const: qi,lb60
24 - const: ingenic,jz4740
26 - description: YLM RetroMini RS-90
28 - const: ylm,rs90
[all …]
/Linux-v6.1/drivers/gpu/drm/
Ddrm_connector.c49 * Hence they are reference-counted using drm_connector_get() and
65 * For connectors which are not fixed (like built-in panels) the driver needs to
74 * Note drm_connector_[un]register() first take connector->lock and then
92 { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
93 { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
94 { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
101 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
102 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
130 * drm_get_connector_type_name - return a string for connector type
145 * drm_connector_get_cmdline_mode - reads the user's cmdline mode
[all …]
/Linux-v6.1/Documentation/admin-guide/mm/damon/
Dreclaim.rst1 .. SPDX-License-Identifier: GPL-2.0
4 DAMON-based Reclamation
7 DAMON-based Reclamation (DAMON_RECLAIM) is a static kernel module that aimed to
9 It doesn't aim to replace the LRU-list based page_granularity reclamation, but
15 On general memory over-committed systems, proactively reclaiming cold pages
20 Free Pages Reporting [3]_ based memory over-commit virtualization systems are
24 guests could be not so memory-frugal, mainly because some kernel subsystems and
25 user-space applications are designed to use as much memory as available. Then,
54 -------
60 no real monitoring and reclamation due to the watermarks-based activation
[all …]

12345678910>>...43