Searched +full:access +full:- +full:ns (Results 1 – 25 of 44) sorted by relevance
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| /Documentation/devicetree/bindings/memory-controllers/ |
| D | ti,gpmc-child.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ti,gpmc-child.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Tony Lindgren <tony@atomide.com>
11 - Roger Quadros <rogerq@kernel.org>
24 gpmc,sync-clk-ps:
28 # Chip-select signal timings corresponding to GPMC_CONFIG2:
29 gpmc,cs-on-ns:
33 gpmc,cs-rd-off-ns:
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| D | st,stm32-fmc2-ebi-props.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/st,stm32-fmc2-ebi-props.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Christophe Kerello <christophe.kerello@foss.st.com>
11 - Marek Vasut <marex@denx.de>
14 st,fmc2-ebi-cs-transaction-type:
33 st,fmc2-ebi-cs-cclk-enable:
36 during asynchronous and synchronous access. By default, the
37 FMC_CLK is only generated during synchronous access.
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| D | ti-aemif.txt | 4 provide a glue-less interface to a variety of asynchronous memory devices like
6 can be accessed at any given time via four chip selects with 64M byte access
11 Davinci DM646x - http://www.ti.com/lit/ug/sprueq7c/sprueq7c.pdf
12 OMAP-L138 (DA850) - http://www.ti.com/lit/ug/spruh77a/spruh77a.pdf
13 Kestone - http://www.ti.com/lit/ug/sprugz3a/sprugz3a.pdf
17 - compatible: "ti,davinci-aemif"
18 "ti,keystone-aemif"
19 "ti,da850-aemif"
21 - reg: contains offset/length value for AEMIF control registers
24 - #address-cells: Must be 2. The partition number has to be encoded in the
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| D | atmel,ebi.txt | 5 The EBI provides a glue-less interface to asynchronous memories through the SMC
10 - compatible: "atmel,at91sam9260-ebi"
11 "atmel,at91sam9261-ebi"
12 "atmel,at91sam9263-ebi0"
13 "atmel,at91sam9263-ebi1"
14 "atmel,at91sam9rl-ebi"
15 "atmel,at91sam9g45-ebi"
16 "atmel,at91sam9x5-ebi"
17 "atmel,sama5d3-ebi"
18 "microchip,sam9x60-ebi"
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| D | st,stm32-fmc2-ebi.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/st,stm32-fmc2-ebi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 asynchronous static devices (such as PSNOR, PSRAM or other memory-mapped
14 - to translate AXI transactions into the appropriate external device
16 - to meet the access time requirements of the external devices
19 Select. The FMC2 performs only one access at a time to an external device.
22 - Christophe Kerello <christophe.kerello@foss.st.com>
27 - st,stm32mp1-fmc2-ebi
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| /Documentation/arch/m68k/ |
| D | buddha-driver.rst | 8 ------------------------------------------------------------------------
11 Buddha-part of the Catweasel Zorro-II version
21 product number: 0 (42 for Catweasel Z-II)
23 Rom-vector: $1000
25 The card should be a Z-II board, size 64K, not for freemem
26 list, Rom-Vektor is valid, no second Autoconfig-board on the
30 as the Amiga Kickstart does: The lower nibble of the 8-Bit
36 otherwise your chance is only 1:16 to find the board :-).
38 The local memory-map is even active when mapped to $e8:
41 $0-$7e Autokonfig-space, see Z-II docs.
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| /Documentation/devicetree/bindings/iommu/ |
| D | qcom,iommu.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Konrad Dybcio <konradybcio@kernel.org>
13 Qualcomm "B" family devices which are not compatible with arm-smmu have
14 a similar looking IOMMU, but without access to the global register space
16 to non-secure vs secure interrupt line.
21 - items:
22 - enum:
23 - qcom,msm8916-iommu
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| /Documentation/trace/ |
| D | timerlat-tracer.rst | 6 find sources of wakeup latencies of real-time threads. Like cyclictest,
13 -----
28 # _-----=> irqs-off
29 # / _----=> need-resched
30 # | / _---=> hardirq/softirq
31 # || / _--=> preempt-depth
34 # TASK-PID CPU# |||| TIMESTAMP ID CONTEXT LATENCY
36 <idle>-0 [000] d.h1 54.029328: #1 context irq timer_latency 932 ns
37 <...>-867 [000] .... 54.029339: #1 context thread timer_latency 11700 ns
38 <idle>-0 [001] dNh1 54.029346: #1 context irq timer_latency 2833 ns
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| /Documentation/filesystems/nfs/ |
| D | localio.rst | 26 But unlike the LOCALIO protocol, the sockaddr-based matching didn't
42 - With LOCALIO:
48 - Without LOCALIO:
55 - With LOCALIO:
61 - Without LOCALIO:
93 deciding if the NFS client and server are co-located on the same
103 in shared kernel memory if they are truly co-located.
115 onus on the server to somehow discover that the client is co-located
122 6. Why is having the client perform a server-side file OPEN, without
131 client perform a server-side file open, without using RPC, is ideal.
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| D | nfs41-server.rst | 7 by reading this file will contain either "+4.1" or "-4.1"
11 It can be disabled at run time by writing the string "-4.1" to
16 (Warning: older servers will interpret "+4.1" and "-4.1" as "+4" and
17 "-4", respectively. Therefore, code meant to work on both new and old
25 focuses on the mandatory-to-implement NFSv4.1 Sessions, providing
37 - **pNFS** Parallel NFS
38 - **FDELG** File Delegations
39 - **DDELG** Directory Delegations
43 - **I** Implemented NFSv4.1 operations.
44 - **NS** Not Supported.
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| /Documentation/devicetree/bindings/memory-controllers/ddr/ |
| D | jedec,lpddr2-timings.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2-timings.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LPDDR2 SDRAM AC timing parameters for a given speed-bin
10 - Krzysztof Kozlowski <krzk@kernel.org>
14 const: jedec,lpddr2-timings
16 max-freq:
19 Maximum DDR clock frequency for the speed-bin, in Hz.
21 min-freq:
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| /Documentation/devicetree/bindings/i2c/ |
| D | st,stm32-i2c.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/st,stm32-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
13 - $ref: /schemas/i2c/i2c-controller.yaml#
14 - if:
19 - st,stm32f7-i2c
20 - st,stm32mp13-i2c
21 - st,stm32mp15-i2c
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| /Documentation/devicetree/bindings/powerpc/opal/ |
| D | power-mgt.txt | 1 IBM Power-Management Bindings
4 Linux running on baremetal POWER machines has access to the processor
6 node @power-mgt in the device-tree by the firmware.
9 ----------------
12 - name: The name of the idle state as defined by the firmware.
14 - flags: indicating some aspects of this idle states such as the
15 extent of state-loss, whether timebase is stopped on this
18 - exit-latency: The latency involved in transitioning the state of the
21 - target-residency: The minimum time that the CPU needs to reside in
22 this idle state in order to accrue power-savings
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| /Documentation/devicetree/bindings/usb/ |
| D | mediatek,mtk-xhci.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/usb/mediatek,mtk-xhci.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Chunfeng Yun <chunfeng.yun@mediatek.com>
14 - $ref: usb-xhci.yaml
19 case 2: supports dual-role mode, and the host is based on xHCI driver.
25 - enum:
26 - mediatek,mt2701-xhci
27 - mediatek,mt2712-xhci
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| /Documentation/trace/coresight/ |
| D | coresight-etm4x-reference.rst | 11 ---------------------------
20 ----
37 ----
47 ----
52 - > 0 : Programs up the hardware with the current values held in the driver
55 - = 0 : disable trace hardware.
60 ----
72 ----
77 When FEAT_TRF is implemented, value of TRFCR_ELx.TS used for trace session. Otherwise -1
86 ----
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| /Documentation/devicetree/bindings/net/ |
| D | ti,cpsw-switch.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/ti,cpsw-switch.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Siddharth Vadapalli <s-vadapalli@ti.com>
11 - Roger Quadros <rogerq@kernel.org>
14 The 3-port switch gigabit ethernet subsystem provides ethernet packet
24 - const: ti,cpsw-switch
25 - items:
26 - const: ti,am335x-cpsw-switch
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| /Documentation/devicetree/bindings/iio/adc/ |
| D | st,stm32-adc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 STM32 ADC is a successive approximation analog-to-digital converter.
13 stored in a left-aligned or right-aligned 32-bit data register.
17 voltage goes beyond the user-defined, higher or lower thresholds.
22 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
27 - st,stm32f4-adc-core
28 - st,stm32h7-adc-core
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| /Documentation/admin-guide/mm/damon/ |
| D | start.rst | 1 .. SPDX-License-Identifier: GPL-2.0
18 ------
25 ---------------
37 Snapshot Data Access Patterns
40 The commands below show the memory access pattern of a program at the moment of
44 $ sudo damo start "./masim ./configs/stairs.cfg --quiet"
46 0 addr [85.541 TiB , 85.541 TiB ) (57.707 MiB ) access 0 % age 10.400 s
47 1 addr [85.541 TiB , 85.542 TiB ) (413.285 MiB) access 0 % age 11.400 s
48 2 addr [127.649 TiB , 127.649 TiB) (57.500 MiB ) access 0 % age 1.600 s
49 3 addr [127.649 TiB , 127.649 TiB) (32.500 MiB ) access 0 % age 500 ms
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| /Documentation/block/ |
| D | null_blk.rst | 1 .. SPDX-License-Identifier: GPL-2.0
11 block-layer implementations. It emulates a block device of X gigabytes in size.
15 Multi-queue block-layer
17 - Request-based.
18 - Configurable submission queues per device.
20 No block-layer (Known as bio-based)
22 - Bio-based. IO requests are submitted directly to the device driver.
23 - Directly accepts bio data structure and returns them.
30 queue_mode=[0-2]: Default: 2-Multi-queue
31 Selects which block-layer the module should instantiate with.
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| /Documentation/networking/ |
| D | phy.rst | 26 #. Increase code-reuse
27 #. Increase overall code-maintainability
67 for one of the users. (e.g. "git grep fsl,.*-mdio arch/powerpc/boot/dts/")
72 The Reduced Gigabit Medium Independent Interface (RGMII) is a 12-pin
74 data lines. Due to this design decision, a 1.5ns to 2ns delay must be added
84 or the PCB traces insert the correct 1.5-2ns delay
97 * PHY devices may offer sub-nanosecond granularity in how they allow a
98 receiver/transmitter side delay (e.g: 0.5, 1.0, 1.5ns) to be specified. Such
115 PHY_INTERFACE_MODE_RGMII, it should make sure that the MAC-level delays are
124 option to insert the expected 2ns RGMII delay.
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| /Documentation/virt/gunyah/ |
| D | index.rst | 1 .. SPDX-License-Identifier: GPL-2.0
10 message-queue
12 Gunyah is a Type-1 hypervisor which is independent of any OS kernel, and runs in
15 security and can support a much smaller trusted computing base than a Type-2
19 https://github.com/quic/gunyah-hypervisor.
23 - Scheduling:
25 A scheduler for virtual CPUs (vCPUs) on physical CPUs enables time-sharing
30 its own. The default is a real-time priority with round-robin scheduler.
31 2. "Proxy" scheduling in which an owner-VM can donate the remainder of its
32 own vCPU's time slice to an owned-VM's vCPU via a hypercall.
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| /Documentation/devicetree/bindings/mfd/ |
| D | syscon.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 represent as any specific type of device. The typical use-case is
13 for some other node's driver, or platform-specific code, to acquire
17 and access the registers directly.
20 - Lee Jones <lee@kernel.org>
30 - al,alpine-sysfabric-servic
31 - allwinner,sun8i-a83t-system-controller
32 - allwinner,sun8i-h3-system-controller
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| /Documentation/arch/sparc/oradax/ |
| D | oracle-dax.rst | 6 (DAX2) processor chips, and has direct access to the CPU's L3 caches
25 the accompanying document, dax-hv-api.txt, which is a plain text
27 Specification" version 3.0.20+15, dated 2017-09-25.
59 The kernel does not have access to physical memory in the Sun4v
86 made accessible via mmap(), and are read-only for the application.
109 equal to the number of bytes given in the call. Otherwise -1 is
113 -----------
122 --------
129 --------
138 ---------------------------------------------
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| /Documentation/userspace-api/ |
| D | landlock.rst | 1 .. SPDX-License-Identifier: GPL-2.0
2 .. Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
3 .. Copyright © 2019-2020 ANSSI
4 .. Copyright © 2021-2022 Microsoft Corporation
7 Landlock: unprivileged access control
14 filesystem or network access) for a set of processes. Because Landlock
16 new security layers in addition to the existing system-wide access-controls.
23 ``dmesg | grep landlock || journalctl -kb -g landlock`` .
41 `filesystem access rights`.
45 and the related actions are defined with `network access rights`.
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| /Documentation/devicetree/bindings/firmware/ |
| D | nvidia,tegra186-bpmp.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/firmware/nvidia,tegra186-bpmp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
25 - .../mailbox/mailbox.txt
26 - .../mailbox/nvidia,tegra186-hsp.yaml
32 - .../clock/clock-bindings.txt
33 - <dt-bindings/clock/tegra186-clock.h>
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