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/linux/Documentation/devicetree/bindings/dma/
H A Dapple,admac.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
13 The controller has been seen with up to 24 channels. Even-numbered channels
14 are TX-only, odd-numbered are RX-only. Individual channels are coupled to
18 - Martin Povišer <povik+lin@cutebit.org>
21 - $ref: dma-controller.yaml#
26 - enum:
27 - apple,t6000-admac
28 - apple,t8103-admac
[all …]
/linux/Documentation/devicetree/bindings/display/bridge/
H A Dthine,thc63lvd1024.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacopo Mondi <jacopo+renesas@jmondi.org>
11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
34 even-numbered pixels are received on port@0 and odd-numbered pixels on
60 - port@0
61 - port@2
63 oe-gpios:
67 powerdown-gpios:
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/linux/include/linux/
H A Dasn1_ber_bytecode.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
28 /* The tag-matching ops come first and the odd-numbered slots
66 /* The following eight have bit 0 -> SET, 1 -> OF, 2 -> ACT */
/linux/drivers/net/ethernet/intel/fm10k/
H A Dfm10k_mbx.h1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
45 * +----------+ connect() +----------+
46 * | CLOSED | --------------> | CONNECT |
47 * +----------+ +----------+
54 * +----------+ disconnect() +----------+
55 * |DISCONNECT| <-------------- | OPEN |
56 * +----------+ +----------+
90 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
92 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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/linux/arch/arm/probes/kprobes/
H A Dtest-core.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * arch/arm/kernel/kprobes-test.c
12 * supported instruction sets: ARM, 16-bit Thumb, and 32-bit Thumb. These tests
23 * The individual test cases are in kprobes-test-arm.c and kprobes-test-thumb.c
24 * which use the macros defined in kprobes-test.h. The rest of this
31 * -------------------
41 * post-handler of the test_before probe is used to modify the saved CPU
43 * pre-handler of the of the test_after probe saves a copy of the CPU
83 * (branch backwards). In these, the local variables numbered 1, 50, 2 and
87 * ---------
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/linux/arch/mips/cavium-octeon/executive/
H A Dcvmx-pko.c7 * 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
34 #include <asm/octeon/cvmx-config.h>
35 #include <asm/octeon/cvmx-pko.h>
36 #include <asm/octeon/cvmx-helper.h>
64 return -1; in __cvmx_pko_int()
85 config.s.tail = (queue == (num_queues - 1)); in __cvmx_pko_iport_config()
95 (CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE - in __cvmx_pko_iport_config()
190 * Set the size of the PKO command buffers to an odd number of in cvmx_pko_initialize_global()
[all …]
/linux/sound/hda/codecs/hdmi/
H A Datihdmi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
18 ((codec)->core.vendor_id == 0x1002aa01 && \
19 ((codec)->core.revision_id & 0xff00) >= 0x0300)
106 return -EINVAL; in get_eld_ati()
170 /* format is supported, copy SAD as-is */ in get_eld_ati()
189 return -EINVAL; in get_eld_ati()
196 * [1..251] msecs = (x-1)*2 (max 500ms with x = 251 = 0xfb) in get_eld_ati()
212 buf[6] = video_latency_hdmi - audio_latency_hdmi; in get_eld_ati()
217 buf[5] |= ((pos - ELD_FIXED_BYTES - sink_desc_len) / 3) << 4; in get_eld_ati()
219 /* Baseline ELD block length is 4-byte aligned */ in get_eld_ati()
[all …]
/linux/drivers/ata/
H A Dpata_artop.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * pata_artop.c - ARTOP ATA controller driver
9 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
11 * driver by Thibaut VARENE <varenet@parisc-linux.org>
43 * artop62x0_pre_reset - probe begin
57 struct ata_port *ap = link->ap; in artop62x0_pre_reset()
58 struct pci_dev *pdev = to_pci_dev(ap->host->dev); in artop62x0_pre_reset()
60 /* Odd numbered device ids are the units with enable bits. */ in artop62x0_pre_reset()
61 if ((pdev->device & 1) && in artop62x0_pre_reset()
62 !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) in artop62x0_pre_reset()
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H A Dlibata-sff.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * libata-sff.c - helper library for PCI IDE BMDMA
5 * Copyright 2003-2006 Red Hat, Inc. All rights reserved.
6 * Copyright 2003-2006 Jeff Garzik
9 * as Documentation/driver-api/libata.rst
12 * http://www.sata-io.org/
53 * ata_sff_check_status - Read device status reg & clear interrupt
56 * Reads ATA taskfile status register for currently-selected device
65 return ioread8(ap->ioaddr.status_addr); in ata_sff_check_status()
70 * ata_sff_altstatus - Read device alternate status reg
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/linux/lib/
H A Dasn1_decoder.c1 // SPDX-License-Identifier: GPL-2.0-or-later
66 if (unlikely(datalen - dp < 2)) { in asn1_find_indefinite_length()
78 if (--indef_level <= 0) { in asn1_find_indefinite_length()
79 *_len = dp - *_dp; in asn1_find_indefinite_length()
88 if (unlikely(datalen - dp < 2)) in asn1_find_indefinite_length()
107 n = len - 0x80; in asn1_find_indefinite_length()
108 if (unlikely(n > sizeof(len) - 1)) in asn1_find_indefinite_length()
110 if (unlikely(n > datalen - dp)) in asn1_find_indefinite_length()
113 for (; n > 0; n--) { in asn1_find_indefinite_length()
118 if (len > datalen - dp) in asn1_find_indefinite_length()
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/linux/Documentation/filesystems/
H A Dvfat.rst10 mount -t vfat /dev/fd0 /mnt
42 **-20**: If current process is in group of file's group ID,
45 **-2**: Other users can change timestamp.
69 There is also an option of doing UTF-8 translations
76 UTF-8 is the filesystem safe version of Unicode that
79 If 'uni_xlate' gets set, UTF-8 gets disabled.
156 cases in presence of DST - time stamps in a different DST
176 FAT has the ATTR_RO (read-only) attribute. On Windows,
181 If you want to use ATTR_RO as read-only flag even for
184 **errors=panic|continue|remount-ro**
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/linux/drivers/net/ethernet/aquantia/atlantic/macsec/
H A Dmacsec_api.c1 // SPDX-License-Identifier: GPL-2.0-only
46 return (*data != 0xffff) ? 0 : -ETIME; in aq_mss_mdio_read()
118 * packed_record - [OUT] The table row data (raw).
269 return -EINVAL; in set_ingress_prectlf_record()
273 packed_record[0] = rec->sa_da[0] & 0xFFFF; in set_ingress_prectlf_record()
274 packed_record[1] = (rec->sa_da[0] >> 16) & 0xFFFF; in set_ingress_prectlf_record()
275 packed_record[2] = rec->sa_da[1] & 0xFFFF; in set_ingress_prectlf_record()
276 packed_record[3] = rec->eth_type & 0xFFFF; in set_ingress_prectlf_record()
277 packed_record[4] = rec->match_mask & 0xFFFF; in set_ingress_prectlf_record()
278 packed_record[5] = rec->match_type & 0xF; in set_ingress_prectlf_record()
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/linux/sound/soc/atmel/
H A Dmchp-i2s-mcc.c1 // SPDX-License-Identifier: GPL-2.0
3 // Driver for Microchip I2S Multi-channel controller
29 * ---- I2S Controller Register map ----
75 * ---- Control Register (Write-only) ----
86 * ---- Mode Register A (Read/Write) ----
135 /* Number of TDM Channels - 1 */
138 ((((ch) - 1) << 13) & MCHP_I2SMCC_MRA_NBCHAN_MASK)
169 * ---- Mode Register B (Read/Write) ----
183 (((fls(no_words) - 1) << 8) & MCHP_I2SMCC_MRB_DMACHUNK_MASK)
190 * ---- Status Registers (Read-only) ----
[all …]
/linux/arch/powerpc/kernel/
H A Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
10 * PowerPC-64 Support added by Dave Engebretsen, Peter Bergner, and
117 * On big-cores system, thread_group_l1_cache_map for each CPU corresponds to
118 * the set its siblings that share the L1-cache.
123 * On some big-cores system, thread_group_l2_cache_map for each CPU
125 * L2-cache.
150 /* Special case - we inhibit secondary thread startup in smp_generic_cpu_bootable()
169 return -EINVAL; in smp_generic_kick_cpu()
173 * cpu_start field to become non-zero After we set cpu_start, in smp_generic_kick_cpu()
176 if (!paca_ptrs[nr]->cpu_start) { in smp_generic_kick_cpu()
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/linux/drivers/scsi/isci/
H A Dinit.c7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
136 return sysfs_emit(buf, "%d\n", ihost->id); in isci_show_id()
184 /* ata recovery called from ata-eh */
206 * isci_register_sas_ha() - This method initializes various lldd
219 struct sas_ha_struct *sas_ha = &(isci_host->sas_ha); in isci_register_sas_ha()
223 sas_phys = devm_kcalloc(&isci_host->pdev->dev, in isci_register_sas_ha()
227 return -ENOMEM; in isci_register_sas_ha()
229 sas_ports = devm_kcalloc(&isci_host->pdev->dev, in isci_register_sas_ha()
[all …]
/linux/Documentation/
H A Dmemory-barriers.txt19 documentation at tools/memory-model/. Nevertheless, even this memory
37 Note also that it is possible that a barrier may be a no-op for an
48 - Device operations.
49 - Guarantees.
53 - Varieties of memory barrier.
54 - What may not be assumed about memory barriers?
55 - Address-dependency barriers (historical).
56 - Control dependencies.
57 - SMP barrier pairing.
58 - Examples of memory barrier sequences.
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/linux/drivers/md/
H A Draid0.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 Copyright (C) 1994-96 Marc ZYNGIER
5 <zyngier@ufr-info-p7.ibp.fr> or
9 RAID-0 management functions.
40 struct r0conf *conf = mddev->private; in dump_zones()
41 int raid_disks = conf->strip_zone[0].nb_dev; in dump_zones()
42 pr_debug("md: RAID0 configuration for %s - %d zone%s\n", in dump_zones()
44 conf->nr_strip_zones, conf->nr_strip_zones==1?"":"s"); in dump_zones()
45 for (j = 0; j < conf->nr_strip_zones; j++) { in dump_zones()
49 for (k = 0; k < conf->strip_zone[j].nb_dev; k++) in dump_zones()
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/linux/drivers/usb/host/
H A Duhci-hcd.c1 // SPDX-License-Identifier: GPL-2.0
8 * (C) Copyright 1999-2002 Johannes Erdfelt, johannes@erdfelt.com
15 * support from usb-ohci.c by Adam Richter, adam@yggdrasil.com).
16 * (C) Copyright 1999 Gregory P. Smith (from usb-ohci.c)
17 * (C) Copyright 2004-2007 Alan Stern, stern@rowland.harvard.edu
40 #include <linux/dma-mapping.h>
50 #include "uhci-hcd.h"
105 * There's not much to be done about period-1 interrupts; they have in uhci_frame_skel_link()
106 * to occur in every frame. But we can schedule period-2 interrupts in uhci_frame_skel_link()
107 * in odd-numbered frames, period-4 interrupts in frames congruent in uhci_frame_skel_link()
[all …]
/linux/Documentation/process/
H A Dadding-syscalls.rst9 :ref:`Documentation/process/submitting-patches.rst <submittingpatches>`.
13 ------------------------
18 kernel, there are other possibilities -- choose what fits best for your
21 - If the operations involved can be made to look like a filesystem-like
26 - If the new functionality involves operations where the kernel notifies
30 - However, operations that don't map to
31 :manpage:`read(2)`/:manpage:`write(2)`-like operations
35 - If you're just exposing runtime system information, a new node in sysfs
41 - If the operation is specific to a particular file or file descriptor, then
47 - If the operation is specific to a particular task or process, then an
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/linux/Documentation/RCU/Design/Data-Structures/
H A DData-Structures.rst15 Data-Structure Relationships
25 .. kernel-figure:: BigTreeClassicRCU.svg
34 which results in a three-level ``rcu_node`` tree.
38 The purpose of this combining tree is to allow per-CPU events
39 such as quiescent states, dyntick-idle transitions,
42 Quiescent states are recorded by the per-CPU ``rcu_data`` structures,
43 and other events are recorded by the leaf-level ``rcu_node``
54 As can be seen from the diagram, on a 64-bit system
55 a two-level tree with 64 leaves can accommodate 1,024 CPUs, with a fanout
58 +-----------------------------------------------------------------------+
[all …]
/linux/sound/usb/
H A Dmidi.c2 * usbmidi.c - ALSA USB MIDI driver
4 * Copyright (c) 2002-2009 Clemens Ladisch
7 * Based on the OSS usb-midi driver by NAGANO Daisuke,
179 if (err < 0 && err != -ENODEV) in snd_usbmidi_submit_urb()
180 dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err); in snd_usbmidi_submit_urb()
189 switch (urb->status) { in snd_usbmidi_urb_error()
191 case -ENOENT: in snd_usbmidi_urb_error()
192 case -ECONNRESET: in snd_usbmidi_urb_error()
193 case -ESHUTDOWN: in snd_usbmidi_urb_error()
194 case -ENODEV: in snd_usbmidi_urb_error()
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/linux/drivers/bus/mhi/ep/
H A Dmain.c1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/dma-direction.h>
31 struct device *dev = &mhi_cntrl->mhi_dev->dev; in mhi_ep_send_event()
36 mutex_lock(&mhi_cntrl->event_lock); in mhi_ep_send_event()
37 ring = &mhi_cntrl->mhi_event[ring_idx].ring; in mhi_ep_send_event()
38 ctx = (union mhi_ep_ring_ctx *)&mhi_cntrl->ev_ctx_cache[ring_idx]; in mhi_ep_send_event()
39 if (!ring->started) { in mhi_ep_send_event()
54 mutex_unlock(&mhi_cntrl->event_lock); in mhi_ep_send_event()
70 if (READ_ONCE(ring->irq_pending)) in mhi_ep_send_event()
71 cancel_delayed_work(&ring->intmodt_work); in mhi_ep_send_event()
[all …]
/linux/drivers/pinctrl/starfive/
H A Dpinctrl-starfive-jh7100.c1 // SPDX-License-Identifier: GPL-2.0
26 #include <dt-bindings/pinctrl/pinctrl-starfive-jh7100.h>
29 #include "../pinctrl-utils.h"
33 #define DRIVER_NAME "pinctrl-starfive"
37 * https://github.com/starfive-tech/JH7100_Docs
48 * The following 32-bit registers come in pairs, but only the offset of the
49 * first register is defined. The first controls (interrupts for) GPIO 0-31 and
50 * the second GPIO 32-63.
54 * Interrupt Type. If set to 1 the interrupt is edge-triggered. If set to 0 the
55 * interrupt is level-triggered.
[all …]
/linux/net/netfilter/
H A Dnft_set_pipapo.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (c) 2019-2020 Red Hat GmbH
15 * -------
17 * Match packet bytes against entries composed of ranged or non-ranged packet
22 * --- fields --->
33 * ------------------
65 * next-field rules the current rule maps to.
73 * A stand-alone, reference implementation, also including notes about possible
78 * ---------
80 * - For each packet field:
[all …]
/linux/drivers/scsi/sym53c8xx_2/
H A Dsym_hipd.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * of PCI-SCSI IO processors.
6 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
7 * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx>
10 * Copyright (C) 1998-2000 Gerard Roudier
13 * a port of the FreeBSD ncr driver to Linux-1.2.13.
17 * Stefan Esser <se@mi.Uni-Koeln.de>
25 *-----------------------------------------------------------------------------
55 while (n-- > 0) in sym_printl_hex()
62 sym_print_addr(cp->cmd, "%s: ", label); in sym_print_msg()
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