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/linux/Documentation/driver-api/usb/
H A Dpersist.rst1 .. _usb-persist:
14 bus must continue to supply suspend current (around 1-5 mA). This
16 detect connect-change events (devices being plugged in or unplugged).
23 device is still attached or perhaps it was removed and a different
28 wakes up all the devices attached to that controller are treated as
38 Unfortunately problems _can_ arise, particularly with mass-storage
41 filesystem on the device, you're out of luck -- everything in that
57 suspend-to-RAM. On almost all systems, no suspend current is
58 available during hibernation (also known as swsusp or suspend-to-disk).
65 suspended -- but it will crash as soon as it wakes up, which isn't
[all …]
/linux/Documentation/driver-api/cxl/linux/
H A Dmemory-hotplug.rst1 .. SPDX-License-Identifier: GPL-2.0
8 memory-hotplug component.
15 4) Driver-Managed Memory Designation
19 The default-online behavior of hotplug memory is dictated by the following,
22 - :code:`CONFIG_MHP_DEFAULT_ONLINE_TYPE` Build Configuration
23 - :code:`memhp_default_state` Boot parameter
24 - :code:`/sys/devices/system/memory/auto_online_blocks` value
36 :code:`ZONE_MOVABLE` attempts to retain the hotplug-ability of a memory block
37 so that it the entire region may be hot-unplugged at a later time. Any capacity
38 onlined into :code:`ZONE_NORMAL` should be considered permanently attached to
[all …]
/linux/Documentation/fb/
H A Dudlfb.rst2 udlfb - DisplayLink USB 2.0 driver
15 pixels line-by-line via USB bulk transfers.
18 does not require any acks - the effect is very low latency that
20 non-gaming and non-video applications.
23 setting is very flexible - able to set nearly arbitrary modes from any timing.
35 one-to-one with the fbdev interface, making the driver quite small and
66 At that point, a /dev/fb? interface will be present for user-mode applications
71 defio support enabled, to support a page-fault based detection mechanism
74 The most common client of udlfb is xf86-video-displaylink or a modified
75 xf86-video-fbdev X server. These servers have no real DisplayLink specific
[all …]
/linux/arch/powerpc/kernel/
H A Deeh_driver.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * PCI Error Recovery Driver for RPA-compliant PPC64 platform.
17 #include <asm/ppc-pci.h>
18 #include <asm/pci-bridge.h>
78 return !edev || (edev->mode & EEH_DEV_REMOVED); in eeh_dev_removed()
83 if (!edev->pdev) in eeh_edev_actionable()
85 if (edev->pdev->error_state == pci_channel_io_perm_failure) in eeh_edev_actionable()
89 if (eeh_pe_passed(edev->pe)) in eeh_edev_actionable()
96 * eeh_pcid_get - Get the PCI device driver
106 if (!pdev || !pdev->dev.driver) in eeh_pcid_get()
[all …]
H A Deeh_pe.c1 // SPDX-License-Identifier: GPL-2.0-or-later
20 #include <asm/pci-bridge.h>
21 #include <asm/ppc-pci.h>
27 * eeh_set_pe_aux_size - Set PE auxiliary data size
41 * eeh_pe_alloc - Allocate PE
63 pe->type = type; in eeh_pe_alloc()
64 pe->phb = phb; in eeh_pe_alloc()
65 INIT_LIST_HEAD(&pe->child_list); in eeh_pe_alloc()
66 INIT_LIST_HEAD(&pe->edevs); in eeh_pe_alloc()
68 pe->data = (void *)pe + ALIGN(sizeof(struct eeh_pe), in eeh_pe_alloc()
[all …]
/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mp-venice-gw71xx.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/leds/common.h>
8 #include <dt-bindings/phy/phy-imx8-pcie.h>
12 compatible = "gpio-usb-b-connector", "usb-b-connector";
13 pinctrl-names = "default";
14 pinctrl-0 = <&pinctrl_usbcon1>;
16 label = "Type-C";
17 id-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
21 remote-endpoint = <&usb3_dwc>;
[all …]
H A Dimx8mp-verdin-dev.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 native-hdmi-connector {
8 compatible = "hdmi-connector";
14 remote-endpoint = <&hdmi_tx_out>;
19 reg_eth2phy: regulator-eth2phy {
20 compatible = "regulator-fixed";
21 enable-active-high;
23 off-on-delay-us = <500000>;
24 regulator-max-microvolt = <3300000>;
25 regulator-min-microvolt = <3300000>;
[all …]
H A Dimx8mp-verdin-dahlia.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 native-hdmi-connector {
8 compatible = "hdmi-connector";
14 remote-endpoint = <&hdmi_tx_out>;
20 compatible = "simple-audio-card";
21 simple-audio-card,bitclock-master = <&codec_dai>;
22 simple-audio-card,format = "i2s";
23 simple-audio-card,frame-master = <&codec_dai>;
24 simple-audio-card,mclk-fs = <256>;
25 simple-audio-card,name = "verdin-wm8904";
[all …]
H A Dimx8mp-venice-gw75xx.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/leds/common.h>
8 #include <dt-bindings/phy/phy-imx8-pcie.h>
11 led-controller {
12 compatible = "gpio-leds";
13 pinctrl-names = "default";
14 pinctrl-0 = <&pinctrl_gpio_leds>;
16 led-0 {
20 default-state = "on";
[all …]
H A Dimx8mp-dhcom-pdk3.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 * DHCM-iMX8ML8-C160-R409-F1638-SPI16-GE-CAN2-SD-RTC-WBTA-ADC-T-RGB-CSI2-HS-I-01D2
7 * DHCOM PCB number: 660-100 or newer
8 * PDK3 PCB number: 669-100 or newer
11 /dts-v1/;
13 #include <dt-bindings/leds/common.h>
14 #include <dt-bindings/phy/phy-imx8-pcie.h>
15 #include "imx8mp-dhcom-som.dtsi"
19 compatible = "dh,imx8mp-dhcom-pdk3", "dh,imx8mp-dhcom-som",
23 stdout-path = &uart1;
[all …]
H A Dimx8mp-venice-gw72xx.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/leds/common.h>
8 #include <dt-bindings/phy/phy-imx8-pcie.h>
16 compatible = "gpio-usb-b-connector", "usb-b-connector";
17 pinctrl-names = "default";
18 pinctrl-0 = <&pinctrl_usbcon1>;
21 vbus-supply = <&reg_usb1_vbus>;
22 id-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
26 remote-endpoint = <&usb3_dwc>;
[all …]
H A Dimx8mp-venice-gw73xx.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/leds/common.h>
8 #include <dt-bindings/phy/phy-imx8-pcie.h>
16 compatible = "gpio-usb-b-connector", "usb-b-connector";
17 pinctrl-names = "default";
18 pinctrl-0 = <&pinctrl_usbcon1>;
21 vbus-supply = <&reg_usb1_vbus>;
22 id-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
26 remote-endpoint = <&usb3_dwc>;
[all …]
H A Dimx8mp-phyboard-pollux-rdk.dts1 // SPDX-License-Identifier: GPL-2.0
7 /dts-v1/;
9 #include <dt-bindings/phy/phy-imx8-pcie.h>
10 #include <dt-bindings/leds/leds-pca9532.h>
11 #include <dt-bindings/pwm/pwm.h>
12 #include <dt-bindings/thermal/thermal.h>
13 #include "imx8mp-phycore-som.dtsi"
16 model = "PHYTEC phyBOARD-Pollux i.MX8MP";
17 compatible = "phytec,imx8mp-phyboard-pollux-rdk",
18 "phytec,imx8mp-phycore-som", "fsl,imx8mp";
[all …]
H A Dimx8mp-tqma8mpql-mba8mp-ras314.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
3 * Copyright (c) 2023-2024 TQ-Systems GmbH <linux@ew.tq-group.com>,
4 * D-82229 Seefeld, Germany.
9 /dts-v1/;
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/net/ti-dp83867.h>
13 #include <dt-bindings/phy/phy-imx8-pcie.h>
14 #include <dt-bindings/pwm/pwm.h>
15 #include "imx8mp-tqma8mpql.dtsi"
18 model = "TQ-Systems i.MX8MPlus TQMa8MPxL on MBa8MP-RAS314";
[all …]
H A Dimx8mp-tqma8mpql-mba8mpxl.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
3 * Copyright 2021-2022 TQ-Systems GmbH
4 * Author: Alexander Stein <alexander.stein@tq-group.com>
7 /dts-v1/;
9 #include <dt-bindings/leds/common.h>
10 #include <dt-bindings/net/ti-dp83867.h>
11 #include <dt-bindings/phy/phy-imx8-pcie.h>
12 #include <dt-bindings/pwm/pwm.h>
13 #include "imx8mp-tqma8mpql.dtsi"
16 model = "TQ-Systems i.MX8MPlus TQMa8MPxL on MBa8MPxL";
[all …]
H A Dimx8mp-venice-gw74xx.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/linux-event-codes.h>
10 #include <dt-bindings/leds/common.h>
11 #include <dt-bindings/phy/phy-imx8-pcie.h>
12 #include <dt-bindings/net/ti-dp83867.h>
18 compatible = "gateworks,imx8mp-gw74xx", "fsl,imx8mp";
33 stdout-path = &uart2;
42 pinctrl-names = "default";
[all …]
/linux/drivers/usb/dwc3/
H A Ddwc3-imx8mp.c1 // SPDX-License-Identifier: GPL-2.0
3 * dwc3-imx8mp.c - NXP imx8mp Specific Glue layer
45 #define USB_CTRL0_PORTPWR_EN BIT(12) /* 1 - PPC enabled (default) */
46 #define USB_CTRL0_USB3_FIXED BIT(22) /* 1 - USB3 permanent attached */
47 #define USB_CTRL0_USB2_FIXED BIT(23) /* 1 - USB2 permanent attached */
49 #define USB_CTRL1_OC_POLARITY BIT(16) /* 0 - HIGH / 1 - LOW */
50 #define USB_CTRL1_PWR_POLARITY BIT(17) /* 0 - HIGH / 1 - LOW */
66 struct device *dev = dwc3_imx->dev; in imx8mp_configure_glue()
69 if (!dwc3_imx->glue_base) in imx8mp_configure_glue()
72 value = readl(dwc3_imx->glue_base + USB_CTRL0); in imx8mp_configure_glue()
[all …]
/linux/fs/xfs/libxfs/
H A Dxfs_ialloc_btree.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
33 return M_IGEO(cur->bc_mp)->inobt_mnr[level != 0]; in xfs_inobt_get_minrecs()
40 return xfs_inobt_init_cursor(to_perag(cur->bc_group), cur->bc_tp, in xfs_inobt_dup_cursor()
41 cur->bc_ag.agbp); in xfs_inobt_dup_cursor()
48 return xfs_finobt_init_cursor(to_perag(cur->bc_group), cur->bc_tp, in xfs_finobt_dup_cursor()
49 cur->bc_ag.agbp); in xfs_finobt_dup_cursor()
58 struct xfs_buf *agbp = cur->bc_ag.agbp; in xfs_inobt_set_root()
59 struct xfs_agi *agi = agbp->b_addr; in xfs_inobt_set_root()
61 agi->agi_root = nptr->s; in xfs_inobt_set_root()
[all …]
H A Dxfs_rmap_btree.c1 // SPDX-License-Identifier: GPL-2.0
33 * This is a per-ag tree used to track the owner(s) of a given extent. With
59 return xfs_rmapbt_init_cursor(cur->bc_mp, cur->bc_tp, in xfs_rmapbt_dup_cursor()
60 cur->bc_ag.agbp, to_perag(cur->bc_group)); in xfs_rmapbt_dup_cursor()
69 struct xfs_buf *agbp = cur->bc_ag.agbp; in xfs_rmapbt_set_root()
70 struct xfs_agf *agf = agbp->b_addr; in xfs_rmapbt_set_root()
71 struct xfs_perag *pag = to_perag(cur->bc_group); in xfs_rmapbt_set_root()
73 ASSERT(ptr->s != 0); in xfs_rmapbt_set_root()
75 agf->agf_rmap_root = ptr->s; in xfs_rmapbt_set_root()
76 be32_add_cpu(&agf->agf_rmap_level, inc); in xfs_rmapbt_set_root()
[all …]
/linux/Documentation/networking/
H A Dnapi.rst1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
30 of the NAPI instance while the method is the driver-specific event
37 -----------
40 from the system. The instances are attached to the netdevice passed
55 ------------
64 argument - drivers can process completions for any number of Tx
96 or return ``budget - 1``.
101 -------------
109 As mentioned in the :ref:`drv_ctrl` section - napi_disable() and subsequent
118 --------------------------
[all …]
H A Dfilter.rst1 .. SPDX-License-Identifier: GPL-2.0
3 .. _networking-filter:
10 ------
17 ------------
24 BPF allows a user-space program to attach a filter onto any socket and
44 SO_LOCK_FILTER option allows to lock the filter attached to a socket. Once
49 The biggest user of this construct might be libpcap. Issuing a high-level
50 filter command like `tcpdump -i em1 port 22` passes through the libpcap
52 via SO_ATTACH_FILTER to the kernel. `tcpdump -i em1 port 22 -ddd`
57 qdisc layer, SECCOMP-BPF (SECure COMPuting [1]_), and lots of other places
[all …]
/linux/drivers/acpi/acpica/
H A Dexstore.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: exstore - AML Interpreter object store support
6 * Copyright (C) 2000 - 2025, Intel Corp.
35 * PARAMETERS: *source_desc - Value to be stored
36 * *dest_desc - Where to store it. Must be an NS node
39 * walk_state - Current walk state
46 * the destination operand -- not just simply the actual "Store"
86 switch (dest_desc->common.type) { in acpi_ex_store()
93 /* Allow stores to Constants -- a Noop as per ACPI spec */ in acpi_ex_store()
95 if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) { in acpi_ex_store()
[all …]
H A Devgpe.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: evgpe - General Purpose Event handling and dispatch
6 * Copyright (C) 2000 - 2025, Intel Corp.
27 * PARAMETERS: gpe_event_info - GPE to update
44 gpe_register_info = gpe_event_info->register_info; in acpi_ev_update_gpe_enable_mask()
53 ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); in acpi_ev_update_gpe_enable_mask()
57 if (gpe_event_info->runtime_count) { in acpi_ev_update_gpe_enable_mask()
58 ACPI_SET_BIT(gpe_register_info->enable_for_run, in acpi_ev_update_gpe_enable_mask()
62 gpe_register_info->enable_mask = gpe_register_info->enable_for_run; in acpi_ev_update_gpe_enable_mask()
70 * PARAMETERS: gpe_event_info - GPE to enable
[all …]
H A Devxfgpe.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: evxfgpe - External Interfaces for General Purpose Events (GPEs)
6 * Copyright (C) 2000 - 2025, Intel Corp.
83 * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 in ACPI_EXPORT_SYMBOL()
84 * gpe_number - GPE level within the GPE block in ACPI_EXPORT_SYMBOL()
89 * hardware-enabled. in ACPI_EXPORT_SYMBOL()
109 if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != in ACPI_EXPORT_SYMBOL()
115 /* Poll edge-triggered GPEs to handle existing events */ in ACPI_EXPORT_SYMBOL()
137 * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 in ACPI_EXPORT_SYMBOL()
138 * gpe_number - GPE level within the GPE block in ACPI_EXPORT_SYMBOL()
[all …]
/linux/include/uapi/linux/
H A Dif_link.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
43 * struct rtnl_link_stats64 - The main device statistics structure.
93 * - 30.3.1.1.21 aMulticastFramesReceivedOK
103 * - 30.3.1.1.23 aInRangeLengthErrors
104 * - 30.3.1.1.24 aOutOfRangeLengthField
105 * - 30.
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