| /openbmc/u-boot/arch/arm/mach-bcm283x/ |
| H A D | Kconfig | 17 bool "Broadcom BCM2837 SoC 32-bit support"
24 bool "Broadcom BCM2837 SoC 64-bit support"
39 Support for all ARM1176-/BCM2835-based Raspberry Pi variants, such as
40 the A, A+, B, B+, Compute Module, and Zero. This option cannot
41 support BCM2836/BCM2837-based Raspberry Pis such as the RPi 2 and
48 bool "Raspberry Pi Zero W"
50 Support for all ARM1176-/BCM2835-based Raspberry Pi variants, such as
51 the RPi Zero model W.
55 default on the RPi Zero W. To enable the UART console, the following
56 non-default option must be present in config.txt: enable_uart=1.
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| /openbmc/linux/Documentation/devicetree/bindings/arm/bcm/ |
| H A D | bcm2835.yaml | 1 # 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
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| /openbmc/linux/arch/arc/include/asm/ |
| H A D | bitops.h | 1 /* 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]
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| /openbmc/qemu/docs/ |
| H A D | xbzrle.txt | 1 XBZRLE (Xor Based Zero Run Length Encoding)
4 Using XBZRLE (Xor Based Zero Run Length Encoding) allows for the reduction
5 of VM downtime and the total live-migration time of Virtual machines.
26 of the page, where zero represents an unchanged value.
27 The page data delta is represented by zero and non zero runs.
28 A zero run is represented by its length (in bytes).
29 A non zero run is represented by its length (in bytes) and the new data.
49 This work was originally based on research results published
55 XBZRLE has a sustained bandwidth of 2-2.5 GB/s for typical workloads making it
56 ideal for in-line, real-time encoding such as is needed for live-migration.
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| /openbmc/linux/Documentation/fb/ |
| H A D | api.rst | 9 ---------------
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
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| /openbmc/u-boot/board/imgtec/malta/ |
| H A D | lowlevel_init.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
53 * based on a patch sent by Antony Pavlov <antonynpavlov@gmail.com>
56 * 'MIPS: qemu-malta: add YAMON-style GT64120 memory map'
58 * http://www.mail-archive.com/barebox@lists.infradead.org/msg06128.html
60 * based on write_bootloader() in qemu.git/hw/mips_malta.c
69 /* setup MEM-to-PCI0 mapping */
72 /* setup PCI0 io window to 0x18000000-0x181fffff */
121 li t2, -CONFIG_SYS_MEM_SIZE
127 /* initialise IP1 - unused */
129 li t2, -MALTA_MSC01_IP1_SIZE
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| /openbmc/qemu/scripts/kvm/ |
| H A D | vmxcap | 5 # Copyright 2009-2010 Red Hat, Inc.
11 # the COPYING file in the top-level directory.
60 zero = not (mb1 & (1 << bit))
66 and one and not zero):
68 elif zero and not one:
70 elif one and not zero:
72 elif one and zero:
74 print(' %-40s %s' % (self.bits[bit], s))
76 # All 64 bits in the tertiary controls MSR are allowed-1
105 v = (value >> lo) & ((1 << (hi - lo + 1)) - 1)
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| /openbmc/linux/drivers/thermal/ |
| H A D | cpuidle_cooling.c | 1 // SPDX-License-Identifier: GPL-2.0
21 * struct cpuidle_cooling_device - data for the idle cooling device
31 * cpuidle_cooling_runtime - Running time computation
33 * @state: a percentile based number
37 * means the running duration is zero. If we have a 50% ratio
43 * running = idle x ((100 / ratio) - 1)
47 * running = (idle x 100) / ratio - idle
52 * Return: An unsigned int for a usec based runtime duration.
60 return ((idle_duration_us * 100) / state) - idle_duration_us; in cpuidle_cooling_runtime()
64 * cpuidle_cooling_get_max_state - Get the maximum state
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| /openbmc/qemu/include/hw/ |
| H A D | ptimer.h | 19 * When it reaches zero it will trigger a callback function, and
21 * and keep counting down, or to stop (as a one-shot timer).
23 * A transaction-based API is used for modifying ptimer state: all calls
29 * list of state-modifying functions and detailed semantics of the callback.)
31 * Forgetting to set the period/frequency (or setting it to zero) is a
49 * - Starting to run with a period = 0 emits error message and stops the
52 * - Setting period to 0 of the running timer emits error message and
55 * - Starting to run with counter = 0 or setting it to "0" while timer
59 * - Counter value of the running timer is one less than the actual value.
61 * - Changing period/frequency of the running timer loses time elapsed
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| /openbmc/u-boot/board/Seagate/goflexhome/ |
| H A D | kwbimage.cfg | 1 # SPDX-License-Identifier: GPL-2.0+
5 # Based on dockstar/kwbimage.cfg originally written by
8 # Based on sheevaplug/kwbimage.cfg originally written by
12 # Refer docs/README.kwimage for more details about how-to configure
24 # Configure RGMII-0 interface pad voltage to 1.8V
29 # bit13-0: 0xc30 (3120 DDR2 clks refresh rate)
30 # bit23-14: zero
33 # bit29-26: zero
34 # bit31-30: 01
42 # bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
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| /openbmc/linux/drivers/usb/gadget/udc/ |
| H A D | Kconfig | 1 # 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)
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| /openbmc/linux/Documentation/devicetree/bindings/mtd/ |
| H A D | fsmc-nand.txt | 5 - 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
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| /openbmc/u-boot/doc/imx/common/ |
| H A D | mxs.txt | 1 Booting U-Boot on a MXS processor
4 This document describes the MXS U-Boot port. This document mostly covers topics
8 -----------
14 into the unix command prompt in U-Boot source code root directory.
16 The (=>) introduces a snipped of code that should by typed into U-Boot command
20 --------
23 2) Compiling U-Boot for a MXS based board
24 3) Installation of U-Boot for a MXS based board to SD card
25 4) Installation of U-Boot into NAND flash on a MX28 based board
26 5) Installation of U-Boot into SPI NOR flash on a MX28 based board
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| /openbmc/qemu/target/i386/tcg/ |
| H A D | decode-new.h | 2 * Decode table flags, mostly based on Intel SDM.
35 X86_TYPE_L, /* The upper 4 bits of the immediate select a 128-bit register */
52 X86_TYPE_I_unsigned, /* Immediate, zero-extended */
53 X86_TYPE_nop, /* modrm operand decoded but not loaded into s->T{0,1} */
54 X86_TYPE_2op, /* 2-operand RMW instruction */
55 X86_TYPE_LoBits, /* encoded in bits 0-2 of the operand + REX.B */
56 X86_TYPE_0, /* Hard-coded GPRs (RAX..RDI) */
64 X86_TYPE_ES, /* Hard-coded segment registers */
77 X86_SIZE_d, /* 32-bit */
78 X86_SIZE_dq, /* SSE/AVX 128-bit */
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| /openbmc/u-boot/include/ |
| H A D | dma.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Copyright (C) 2015 - 2018 Texas Instruments Incorporated <www.ti.com>
16 * enum dma_direction - dma transfer direction indicator
35 * struct dma_dev_priv - information about a device used by the uclass
61 * DMA consumer DMA_MEM_TO_DEV (transmit) usage example (based on networking).
62 * Note. dma_send() is sync operation always - it'll start transfer and will
64 * - get/request dma channel
66 * ret = dma_get_by_name(common->dev, "tx0", &dma_tx);
69 * - enable dma channel
73 * - dma transmit DMA_MEM_TO_DEV.
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| /openbmc/linux/arch/mips/include/asm/octeon/ |
| H A D | cvmx-helper.h | 7 * 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>
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| /openbmc/linux/arch/arm/include/asm/ |
| H A D | hugetlb-3level.h | 1 /* 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
|
| /openbmc/linux/net/netlabel/ |
| H A D | netlabel_cipso_v4.c | 1 // 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 …]
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| H A D | netlabel_calipso.c | 1 // 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_ops_register - Register the CALIPSO operations
82 * netlbl_calipso_add_pass - Adds a CALIPSO pass DOI definition
87 * Create a new CALIPSO_MAP_PASS DOI definition based on the given ADD message
88 * and add it to the CALIPSO engine. Return zero on success and non-zero on
100 return -ENOMEM; in netlbl_calipso_add_pass()
101 doi_def->type = CALIPSO_MAP_PASS; in netlbl_calipso_add_pass()
102 doi_def->doi = nla_get_u32(info->attrs[NLBL_CALIPSO_A_DOI]); in netlbl_calipso_add_pass()
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| /openbmc/linux/Documentation/admin-guide/media/ |
| H A D | technisat.rst | 1 .. 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``
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| /openbmc/linux/Documentation/filesystems/ext4/ |
| H A D | verity.rst | 1 .. 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
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| /openbmc/u-boot/board/gateworks/gw_ventana/ |
| H A D | README | 1 U-Boot for the Gateworks Ventana Product Family boards
3 This file contains information for the port of U-Boot to the Gateworks
7 is supported by a single bootloader build by using a common SPL and U-Boot
13 ---------------------------------
19 will build the following artifacts from U-Boot source:
20 - SPL - Secondary Program Loader that the i.MX6 BOOT ROM (Primary Program
22 The DRAM controller, loads u-boot.img from the detected boot device,
25 - u-boot.img - The main U-Boot core which is u-boot.bin with a image header.
29 --------
31 To build U-Boot for the Gateworks Ventana product family:
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| /openbmc/docs/designs/ |
| H A D | multihost-phosphor-buttons.md | 1 # Multi-host front panel phosphor buttons interface
15 phosphor-buttons currently only support push type buttons.support for different
20 Currently handler events are only based on monitoring gpio events as input
23 based on dbus property changes.
38 +----------------------------------------------+
42 | +--------------+ +--------------+ |
46 | +--------------+ +--------------+ |
51 +----------------------------------------------+
57 example for a multihost platform yosemite-V2 it has host selector switch mux as
61 +---------------------------+ +------------+
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| /openbmc/linux/drivers/usb/core/ |
| H A D | usb-acpi.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * USB-ACPI glue code
19 * usb_acpi_power_manageable - check whether usb port has
22 * @index: port index based zero
40 #define UUID_USB_CONTROLLER_DSM "ce2ee385-00e6-48cb-9f05-2edb927c4899"
44 * usb_acpi_port_lpm_incapable - check if lpm should be disabled for a port.
46 * @index: zero based port index
51 * Arg0: UUID = ce2ee385-00e6-48cb-9f05-2edb927c4899
73 dev_dbg(&hdev->dev, "port-%d no acpi handle\n", port1); in usb_acpi_port_lpm_incapable()
74 return -ENODEV; in usb_acpi_port_lpm_incapable()
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| /openbmc/linux/tools/testing/selftests/bpf/ |
| H A D | test_dev_cgroup.c | 1 // 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()
|