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/Documentation/admin-guide/pm/
Dintel-speed-select.rst1 .. SPDX-License-Identifier: GPL-2.0
7 The Intel(R) Speed Select Technology (Intel(R) SST) provides a powerful new
9 With Intel(R) SST, one server can be configured for power and performance for a
14 - https://www.intel.com/content/www/us/en/architecture-and-technology/speed-select-technology-artic…
15 - https://builders.intel.com/docs/networkbuilders/intel-speed-select-technology-base-frequency-enha…
19 dynamically without pre-configuring via BIOS setup options. This dynamic
29 intel-speed-select configuration tool
32 Most Linux distribution packages may include the "intel-speed-select" tool. If not,
38 # cd tools/power/x86/intel-speed-select/
43 ------------
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/Documentation/devicetree/bindings/mtd/partitions/
Dbinman.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 This corresponds to a binman 'entry'. It is a single partition which holds
11 data of a defined type.
14 partition. There are quite a number of binman-specific entry types, such as
18 - Simon Glass <sjg@chromium.org>
21 - $ref: /schemas/mtd/partitions/partition.yaml#
26 - u-boot # u-boot.bin from U-Boot project
27 - tfa-bl31 # bl31.bin or bl31.elf from TF-A project
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/Documentation/devicetree/bindings/memory-controllers/fsl/
Dimx8m-ddrc.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/fsl/imx8m-ddrc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peng Fan <peng.fan@nxp.com>
18 switching is implemented by TF-A code which runs from a SRAM area.
27 - enum:
28 - fsl,imx8mn-ddrc
29 - fsl,imx8mm-ddrc
30 - fsl,imx8mq-ddrc
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/Documentation/arch/arm64/
Damu.rst9 Date: 2019-09-10
16 ---------------------
22 counters intended for system management use. The AMU extension provides a
24 optional external memory-mapped interface.
26 Version 1 of the Activity Monitors architecture implements a counter group
27 of four fixed and architecturally defined 64-bit event counters.
29 - CPU cycle counter: increments at the frequency of the CPU.
30 - Constant counter: increments at the fixed frequency of the system
32 - Instructions retired: increments with every architecturally executed
34 - Memory stall cycles: counts instruction dispatch stall cycles caused by
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/Documentation/admin-guide/acpi/
Dssdt-overlays.rst1 .. SPDX-License-Identifier: GPL-2.0
7 In order to support ACPI open-ended hardware configurations (e.g. development
8 boards) we need a way to augment the ACPI configuration provided by the firmware
9 image. A common example is connecting sensors on I2C / SPI buses on development
12 Although this can be accomplished by creating a kernel platform driver or
17 Because ACPI supports external references in AML code a more practical
21 For example, to enumerate a Bosch BMA222E accelerometer on the I2C bus of the
59 ASL Optimizing Compiler version 20140214-64 [Mar 29 2014]
60 Copyright (c) 2000 - 2014 Intel Corporation
62 ASL Input: minnomax.asl - 30 lines, 614 bytes, 7 keywords
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/Documentation/trace/
Dmmiotrace.rst2 In-kernel memory-mapped I/O tracing
11 Injection Test Harness. In Dec 2006 - Jan 2007, using the code from Intel,
12 Jeff Muizelaar created a tool for tracing MMIO accesses with the Nouveau
15 Mmiotrace was built for reverse engineering any memory-mapped IO device with
19 Out-of-tree mmiotrace was originally modified for mainline inclusion and
24 -----------
29 is on-line, therefore mmiotrace takes all but one CPU off-line during run-time
30 activation. You can re-enable CPUs by hand, but you have been warned, there
35 ---------------------
38 $ mount -t debugfs debugfs /sys/kernel/debug
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/Documentation/devicetree/bindings/mailbox/
Dxlnx,zynqmp-ipi-mailbox.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mailbox/xlnx,zynqmp-ipi-mailbox.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
14 +-------------------------------------+
16 +-------------------------------------+
17 +--------------------------------------------------+
18 TF-A | |
21 +--------------------------+ |
24 +--------------------------------------------------+
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/Documentation/driver-api/
Dlibata.rst10 libATA is a library used inside the Linux kernel to support ATA host
12 transports for ATA and ATAPI devices, and SCSI<->ATA translation for ATA
16 internals, and a couple sample ATA low-level drivers.
22 is defined for every low-level libata
23 hardware driver, and it controls how the low-level driver interfaces
26 FIS-based drivers will hook into the system with ``->qc_prep()`` and
27 ``->qc_issue()`` high-level hooks. Hardware which behaves in a manner
29 defining at a bare minimum the bus I/O addresses of the ATA shadow
33 ----------------------------------------------------------
35 Post-IDENTIFY device configuration
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/Documentation/admin-guide/media/
Dbttv.rst1 .. SPDX-License-Identifier: GPL-2.0
8 ----------------------
12 ./scripts/config -e PCI
13 ./scripts/config -m I2C
14 ./scripts/config -m INPUT
15 ./scripts/config -m MEDIA_SUPPORT
16 ./scripts/config -e MEDIA_PCI_SUPPORT
17 ./scripts/config -e MEDIA_ANALOG_TV_SUPPORT
18 ./scripts/config -e MEDIA_DIGITAL_TV_SUPPORT
19 ./scripts/config -e MEDIA_RADIO_SUPPORT
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