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/openbmc/linux/Documentation/devicetree/bindings/leds/
H A Dcommon.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
25 led-sources:
30 $ref: /schemas/types.yaml#/definitions/uint32-array
35 from the header include/dt-bindings/leds/common.h. If there is no
42 the header include/dt-bindings/leds/common.h. If there is no matching
48 function-enumerator:
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H A Dleds-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 Each LED is represented as a sub-node of the gpio-leds device. Each
19 const: gpio-leds
24 "(^led-[0-9a-f]$|led)":
33 retain-state-suspended:
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/openbmc/linux/drivers/leds/trigger/
H A Dledtrig-disk.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * LED Disk Activity Trigger
34 led_trigger_register_simple("disk-activity", &ledtrig_disk); in ledtrig_disk_init()
35 led_trigger_register_simple("disk-read", &ledtrig_disk_read); in ledtrig_disk_init()
36 led_trigger_register_simple("disk-write", &ledtrig_disk_write); in ledtrig_disk_init()
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
18 For more details read Documentation/leds/leds-class.rst.
23 tristate "LED One-shot Trigger"
25 This allows LEDs to blink in one-shot pulses with parameters
36 bool "LED Disk Trigger"
39 This allows LEDs to be controlled by disk activity.
46 This allows LEDs to be controlled by MTD activity.
53 The flash frequency is a hyperbolic function of the 1-minute
76 tristate "LED activity Trigger"
132 This allows LEDs to be controlled by network device activity.
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H A Dledtrig-mtd.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * Based on LED IDE-Disk Activity Trigger
33 led_trigger_register_simple("nand-disk", &ledtrig_nand); in ledtrig_mtd_init()
H A DMakefile1 # SPDX-License-Identifier: GPL-2.0
2 obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
3 obj-$(CONFIG_LEDS_TRIGGER_ONESHOT) += ledtrig-oneshot.o
4 obj-$(CONFIG_LEDS_TRIGGER_DISK) += ledtrig-disk.o
5 obj-$(CONFIG_LEDS_TRIGGER_MTD) += ledtrig-mtd.o
6 obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += ledtrig-heartbeat.o
7 obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
8 obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
9 obj-$(CONFIG_LEDS_TRIGGER_CPU) += ledtrig-cpu.o
10 obj-$(CONFIG_LEDS_TRIGGER_ACTIVITY) += ledtrig-activity.o
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/openbmc/linux/Documentation/ABI/testing/
H A Dsysfs-block-device4 Contact: linux-ide@vger.kernel.org
6 (RW) Used by drivers which support software controlled activity
12 0 OFF - the LED is not activated on activity
13 1 BLINK_ON - the LED blinks on every 10ms when activity is
15 2 BLINK_OFF - the LED is on when idle, and blinks off
16 every 10ms when activity is detected.
20 control the activity LED via the em_message file.
26 Contact: linux-ide@vger.kernel.org
28 (RW) Hard disk shock protection
34 - If the device does not support the unload heads feature,
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/openbmc/linux/include/dt-bindings/leds/
H A Dcommon.h1 /* SPDX-License-Identifier: GPL-2.0 */
45 /* Obsolete equivalent: "shift-key-light" */
56 #define LED_FUNCTION_DISK "disk"
61 Obsolete equivalents: "status-led:{red,green,blue}" (Motorola Droid 4),
69 #define LED_FUNCTION_PLAYER1 "player-1"
70 #define LED_FUNCTION_PLAYER2 "player-2"
71 #define LED_FUNCTION_PLAYER3 "player-3"
72 #define LED_FUNCTION_PLAYER4 "player-4"
73 #define LED_FUNCTION_PLAYER5 "player-5"
76 #define LED_FUNCTION_ACTIVITY "activity"
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/openbmc/u-boot/include/
H A Dbootstage.h1 /* SPDX-License-Identifier: GPL-2.0+ */
20 /* bootstate sub-IDs used for kernel and ramdisk ranges */
66 BOOTSTAGE_ID_CHECK_BOOT_OS, /* Calling OS-specific boot function */
68 BOOTSTAGE_ID_CHECK_RAMDISK = 9, /* Checking ram disk */
70 BOOTSTAGE_ID_RD_MAGIC, /* Checking ram disk magic */
71 BOOTSTAGE_ID_RD_HDR_CHECKSUM, /* Checking ram disk heder checksum */
72 BOOTSTAGE_ID_RD_CHECKSUM, /* Checking ram disk checksum */
73 BOOTSTAGE_ID_COPY_RAMDISK = 12, /* Copying ram disk into place */
75 BOOTSTAGE_ID_NO_RAMDISK, /* No ram disk found (not an error) */
77 BOOTSTAGE_ID_RUN_OS = 15, /* Exiting U-Boot, entering OS */
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/openbmc/linux/include/linux/
H A Dlru_cache.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
7 Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
8 Copyright (C) 2003-2008, Philipp Reisner <philipp.reisner@linbit.com>.
9 Copyright (C) 2003-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
24 This header file (and its .c file; kernel-doc of functions see there)
39 We replicate IO (more or less synchronously) to local and remote disk.
42 we need to resync all regions that have been target of in-flight WRITE IO
48 This is known as "write intent log", and can be implemented as on-disk
53 in-flight WRITE IO, e.g. by only lazily clearing the on-disk write-intent
64 [*] usually as a result of a cluster split-brain and insufficient protection.
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/openbmc/linux/arch/parisc/include/asm/
H A Dled.h1 /* SPDX-License-Identifier: GPL-2.0 */
14 #define LED_LAN_RCV LED0 /* for LAN receive activity */
15 #define LED_LAN_TX LED1 /* for LAN transmit activity */
16 #define LED_DISK_IO LED2 /* for disk activity */
/openbmc/u-boot/doc/device-tree-bindings/leds/
H A Dcommon.txt4 - label : The label for this LED. If omitted, the label is
7 - linux,default-trigger : This parameter, if present, is a
9 "backlight" - LED will act as a back-light, controlled by the framebuffer
11 "default-on" - LED will turn on (but for leds-gpio see "default-state"
13 "heartbeat" - LED "double" flashes at a load average based rate
14 "ide-disk" - LED indicates disk activity
15 "timer" - LED flashes at a fixed, configurable rate
19 system-status {
21 linux,default-trigger = "heartbeat";
H A Dleds-gpio.txt4 - compatible : should be "gpio-leds".
6 Each LED is represented as a sub-node of the gpio-leds device. Each
9 LED sub-node properties:
10 - gpios : Should specify the LED's GPIO, see "gpios property" in
13 - label : (optional)
15 - linux,default-trigger : (optional)
17 - default-state: (optional) The initial state of the LED. Valid
19 and the default-state property is set the to same value, then no
28 compatible = "gpio-leds";
30 label = "IDE Activity";
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/openbmc/openbmc/meta-openembedded/meta-oe/recipes-support/atop/
H A Datop_2.4.0.bb1 SUMMARY = "Monitor for system resources and process activity"
2 DESCRIPTION = "Atop is an ASCII full-screen performance monitor for Linux that \
3 is capable of reporting the activity of all processes (even if processes have \
4 finished during the interval), daily logging of system and process activity for \
5 long-term analysis, highlighting overloaded system resources by using colors, \
6 etc. At regular intervals, it shows system-level activity related to the CPU, \
8 (and thread) it shows e.g. the CPU utilization, memory growth, disk \
13 LICENSE = "GPL-2.0-only"
20 file://fix-permissions.patch \
21 file://sysvinit-implement-status.patch \
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/openbmc/linux/drivers/block/drbd/
H A Ddrbd_actlog.c1 // SPDX-License-Identifier: GPL-2.0-only
7 Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
8 Copyright (C) 2003-2008, Philipp Reisner <philipp.reisner@linbit.com>.
9 Copyright (C) 2003-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
31 * in the on disk ring buffer */
38 * purge-all, set-all-idle, set-all-active, ... to-be-defined
48 /* maximum slot number, "al-extents" in drbd.conf speak.
57 * sectors-written since device creation, and other data generation tag
61 /* --- 36 byte used --- */
76 /* --- 420 bytes used (36 + 64*6) --- */
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H A Ddrbd_int.h1 /* SPDX-License-Identifier: GPL-2.0-only */
7 Copyright (C) 2001-2008, LINBIT Information Technologies GmbH.
8 Copyright (C) 1999-2008, Philipp Reisner <philipp.reisner@linbit.com>.
9 Copyright (C) 2002-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
29 #include <linux/backing-dev.h>
63 #define ID_SYNCER (-1ULL)
125 /* statistics; index: (h->command == P_BITMAP) */
143 c->word_offset = c->bit_offset >> 6; in bm_xfer_ctx_bit_to_word_offset()
145 c->word_offset = c->bit_offset >> 5; in bm_xfer_ctx_bit_to_word_offset()
146 c->word_offset &= ~(1UL); in bm_xfer_ctx_bit_to_word_offset()
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H A Ddrbd_proc.c1 // SPDX-License-Identifier: GPL-2.0-only
7 Copyright (C) 2001-2008, LINBIT Information Technologies GmbH.
8 Copyright (C) 1999-2008, Philipp Reisner <philipp.reisner@linbit.com>.
9 Copyright (C) 2002-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
46 typecheck(unsigned long, device->rs_total); in drbd_get_syncer_progress()
47 *rs_total = device->rs_total; in drbd_get_syncer_progress()
54 *bits_left = device->ov_left; in drbd_get_syncer_progress()
56 *bits_left = drbd_bm_total_weight(device) - device->rs_failed; in drbd_get_syncer_progress()
78 unsigned long tmp = 1000UL - left * 1000UL/total; in drbd_get_syncer_progress()
101 y = 20-x; in drbd_syncer_progress()
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/openbmc/linux/Documentation/admin-guide/pm/
H A Dsleep-states.rst1 .. SPDX-License-Identifier: GPL-2.0
13 Sleep states are global low-power states of the entire system in which user
14 space code cannot be executed and the overall system activity is significantly
28 Suspend-to-Idle
29 ---------------
31 This is a generic, pure software, light-weight variant of system suspend (also
34 I/O devices into low-power states (possibly lower-power than available in the
38 The system is woken up from this state by in-band interrupts, so theoretically
43 or :ref:`suspend-to-RAM <s2ram>`, or it can be used in addition to any of the
50 -------
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/openbmc/linux/arch/arm/boot/dts/marvell/
H A Dkirkwood-ns2lite.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include "kirkwood-ns2-common.dtsi"
8 compatible = "lacie,netspace_lite_v2", "marvell,kirkwood-88f6192", "marvell,kirkwood";
17 pinctrl-0 = <&pmx_ns2_sata0>;
18 pinctrl-names = "default";
20 nr-ports = <1>;
24 gpio-leds {
25 compatible = "gpio-leds";
27 blue-sata {
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H A Dkirkwood-topkick.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
5 #include "kirkwood-6282.dtsi"
8 model = "Universal Scientific Industrial Co. Topkick-1281P2";
9 compatible = "usi,topkick-1281P2", "usi,topkick", "marvell,kirkwood-88f6282", "marvell,kirkwood";
18 stdout-path = &uart0;
22 pinctrl: pin-controller@10000 {
26 * /-SW_LEFT(2)
28 * | /-SW_IDLE
30 * | | /-SW_RIGHT
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/openbmc/u-boot/arch/arm/dts/
H A Dkirkwood-ns2lite.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include "kirkwood-ns2-common.dtsi"
8 compatible = "lacie,netspace_lite_v2", "marvell,kirkwood-88f6192", "marvell,kirkwood";
17 pinctrl-0 = <&pmx_ns2_sata0>;
18 pinctrl-names = "default";
20 nr-ports = <1>;
24 gpio-leds {
25 compatible = "gpio-leds";
27 blue-sata {
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/openbmc/linux/tools/perf/Documentation/
H A Dperf-timechart.txt1 perf-timechart(1)
5 ----
6 perf-timechart - Tool to visualize total system behavior during a workload
9 --------
14 -----------
20 but it's possible to record IO (disk, network) activity using -I argument.
28 Upper bar shows incoming events (disk reads, ingress network packets).
29 Lower bar shows outgoing events (disk writes, egress network packets).
34 -----------------
35 -o::
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/openbmc/linux/arch/arm/boot/dts/intel/ixp/
H A Dintel-ixp42x-iomega-nas100d.dts1 // SPDX-License-Identifier: ISC
6 /dts-v1/;
8 #include "intel-ixp42x.dtsi"
9 #include <dt-bindings/input/input.h>
13 compatible = "iom,nas-100d", "intel,ixp42x";
14 #address-cells = <1>;
15 #size-cells = <1>;
25 stdout-path = "uart0:115200n8";
33 compatible = "gpio-leds";
34 led-wlan {
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/openbmc/linux/drivers/leds/
H A Dleds-hp6xx.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * this driver is based on leds-spitz.c by Richard Purdie.
43 .default_trigger = "hp6xx-charge",
50 .default_trigger = "disk-activity",
59 ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led); in hp6xxled_probe()
63 return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led); in hp6xxled_probe()
69 .name = "hp6xx-led",
78 MODULE_ALIAS("platform:hp6xx-led");
/openbmc/linux/Documentation/admin-guide/
H A Diostats.rst6 more extensive disk statistics have been introduced to help measure disk
7 activity. Tools such as ``sar`` and ``iostat`` typically interpret these and do
44 each snapshot of your disk statistics.
56 or long-lived system; so applications should be prepared to deal with
58 int (32 bit) or unsigned long (32-bit or 64-bit, depending on your
59 machine) as noted per-field below. Unless your observations are very
63 system-wide stats you'll have to find all the devices and sum them all up.
65 Field 1 -- # of reads completed (unsigned long)
68 Field 2 -- # of reads merged, field 6 -- # of writes merged (unsigned long)
71 ultimately handed to the disk, and so it will be counted (and queued)
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