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/Documentation/devicetree/bindings/reserved-memory/
Dramoops.txt11 size of these optional buffers must fit in the reserved region.
14 records. These records have a configurable size, with a size of 0 indicating
17 At least one of "record-size", "console-size", "ftrace-size", or "pmsg-size"
30 - ecc-size: enables ECC support and specifies ECC buffer size in bytes
33 - record-size: maximum size in bytes of each dump done on oops/panic
36 - console-size: size in bytes of log buffer reserved for kernel messages
39 - ftrace-size: size in bytes of log buffer reserved for function tracing and
42 - pmsg-size: size in bytes of log buffer reserved for userspace messages
Dreserved-memory.txt14 #address-cells, #size-cells (required) - standard definition
23 specify a specific range of reserved memory, or a 'size' property with
36 size (required) - length based on parent's #size-cells
37 - Size in bytes of memory to reserve.
38 alignment (optional) - length based on parent's #size-cells
44 If both reg and size are present, then the reg property takes precedence
45 and size is ignored.
84 one default of all device drivers (named linux,cma@72000000 and 64MiB in size),
90 #size-cells = <1>;
98 #size-cells = <1>;
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/Documentation/devicetree/bindings/nios2/
Dnios2.txt17 - dcache-line-size: Contains data cache line size.
18 - icache-line-size: Contains instruction line size.
19 - dcache-size: Contains data cache size.
20 - icache-size: Contains instruction cache size.
25 - altr,tlb-ptr-sz: Specifies size of TLB pointer.
46 dcache-line-size = <32>;
47 icache-line-size = <32>;
48 dcache-size = <32768>;
49 icache-size = <32768>;
/Documentation/devicetree/bindings/mtd/
Dhisi504-nand.txt6 - reg: The first contains base physical address and size of
8 physical address and size of NAND controller's buffer.
13 - #size-cells: Partition size, should be set 1.
18 - nand-ecc-step-size: Number of data bytes covered by a single ECC step.
20 The following ECC strength and step size are currently supported:
22 - nand-ecc-strength = <16>, nand-ecc-step-size = <1024>
36 nand-ecc-step-size = <1024>;
38 #size-cells = <1>;
Datmel-nand.txt20 - #size-cells: should be set to 1.
39 3rd entry: the memory region size (always 0x800000)
88 #size-cells = <1>;
104 #size-cells = <1>;
128 - reg : should specify localbus address and size used for the chip,
130 If the hardware ECC is PMECC, it should contain address and size for
132 The PMECC lookup table address and size in ROM is optional. If not
136 - #address-cells, #size-cells : Must be present if the device has sub-nodes
152 - atmel,pmecc-sector-size : sector size for ECC computation. Supported values
155 for different sector size. First one is for sector size 512, the next is for
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Dmtk-nand.txt19 - reg: Base physical address and size of NFI.
25 - #size-cells: Should be 0.
38 #size-cells = <0>;
50 - nand-ecc-step-size: Number of data bytes covered by a single ECC step.
66 S : spare size per sector.
67 F : FDM size, should be in the range [1,8].
69 O : oob size.
70 P : page size.
71 Q : nand-ecc-step-size.
75 this number depends on max ecc step size
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/Documentation/devicetree/bindings/eeprom/
Dat25.txt13 - pagesize : size of the eeprom page
14 - size : total eeprom size in bytes
24 Obsolete legacy properties can be used in place of "size", "pagesize",
26 - at25,byte-len : total eeprom size in bytes
28 - at25,page-size : size of the eeprom page
41 size = <32768>;
/Documentation/filesystems/ext4/
Dblocks.rst9 block groups. Block size is specified at mkfs time and typically is
10 4KiB. You may experience mounting problems if block size is greater than
11 page size (i.e. 64KiB blocks on a i386 which only has 4KiB memory
38 * - File System Size
53 * - Block Group Size
67 - 4,398,314,962,956 (really 2^32 due to field size limitations)
68 * - File Size, Extents
73 * - File Size, Block Maps
100 * - File System Size
115 * - Block Group Size
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Dbigalloc.rst6 At the moment, the default size of a block is 4KiB, which is a commonly
7 supported page size on most MMU-capable hardware. This is fortunate, as
8 ext4 code is not prepared to handle the case where the block size
9 exceeds the page size. However, for a filesystem of mostly huge files,
18 megabyte range, it might make sense to set a cluster size of 1 megabyte.
20 256 4k blocks. This shrinks the total size of the block allocation
25 The administrator can set a block cluster size at mkfs time (which is
28 that block groups can be several gigabytes in size (instead of just
/Documentation/devicetree/bindings/net/
Dibm,emac.txt31 - max-frame-size : 1 cell, maximum frame size supported in bytes
32 - rx-fifo-size : 1 cell, Rx fifo size in bytes for 10 and 100 Mb/sec
35 - tx-fifo-size : 1 cell, Tx fifo size in bytes for 10 and 100 Mb/sec
38 - fifo-entry-size : 1 cell, size of a fifo entry (used to calculate
41 - mal-burst-size : 1 cell, MAL burst size (used to calculate thresholds)
76 - rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec
78 rx-fifo-size). For Axon, either absent or 2048.
79 - tx-fifo-size-gige : 1 cell, Tx fifo size in bytes for 1000 Mb/sec
81 tx-fifo-size). For Axon, either absent or 2048.
95 - #size-cells: Must be <0>.
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Dmarvell-orion-net.txt24 - #size-cells: shall be 0.
30 - marvell,tx-checksum-limit: max tx packet size for hardware checksum.
42 - marvell,tx-queue-size: size of the transmit ring buffer.
44 - marvell,tx-sram-size: size of transmit descriptor buffer located in SRAM.
45 - marvell,rx-queue-size: size of the receive ring buffer.
47 - marvell,rx-sram-size: size of receive descriptor buffer located in SRAM.
71 #size-cells = <0>;
/Documentation/devicetree/bindings/arm/socionext/
Dcache-uniphier.txt13 - cache-size: specifies the size in bytes of the cache
15 - cache-line-size: specifies the line size in bytes
32 cache-size = <0x80000>;
34 cache-line-size = <128>;
44 cache-size = <0x200000>;
46 cache-line-size = <128>;
56 cache-size = <0x400000>;
58 cache-line-size = <256>;
/Documentation/driver-api/mmc/
Dmmc-dev-attrs.rst34 erase_size Erase group size
35 preferred_erase_size Preferred erase size
36 raw_rpmb_size_mult RPMB partition size
45 Note on Erase Size and Preferred Erase Size:
47 "erase_size" is the minimum size, in bytes, of an erase
48 operation. For MMC, "erase_size" is the erase group size
50 to trim or secure trim operations where the minimum size is
67 which is multiplied by the size of the erase area,
74 size for erasing large areas.
77 erase size if a card specifies one, otherwise it is
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/Documentation/devicetree/bindings/input/touchscreen/
Dhideep.txt15 - touchscreen-size-x : X axis size of touchscreen
16 - touchscreen-size-y : Y axis size of touchscreen
37 touchscreen-size-x = <1080>;
38 touchscreen-size-y = <1920>;
/Documentation/devicetree/bindings/pci/
Dtango-pcie.txt6 - reg: address/size of PCI configuration space, address/size of register area
7 - bus-range: defined by size of PCI configuration space
9 - #size-cells: <2>
22 #size-cells = <2>;
/Documentation/devicetree/bindings/riscv/
Dsifive-l2-cache.txt12 - cache-block-size: Specifies the block size in bytes of the cache.
20 - cache-size: Specifies the size in bytes of the cache. Should be 2097152
26 - reg: Physical base address and size of L2 cache controller registers map
41 cache-block-size = <64>;
44 cache-size = <2097152>;
/Documentation/media/uapi/dvb/
Ddmx-set-buffer-size.rst25 .. c:function:: int ioctl( int fd, DMX_SET_BUFFER_SIZE, unsigned long size)
35 ``size``
36 Unsigned long size
41 This ioctl call is used to set the size of the circular buffer used for
42 filtered data. The default size is two maximum sized sections, i.e. if
43 this function is not called a buffer size of ``2 * 4096`` bytes will be
/Documentation/devicetree/bindings/sound/
Domap-mcbsp.txt8 - reg: Register location and size, for OMAP4+ as an array:
9 <MPU access base address, size>,
10 <L3 interconnect address, size>;
18 - ti,buffer-size: Size of the FIFO on the port (OMAP2430 and newer SoC)
34 ti,buffer-size = <1280>;
/Documentation/admin-guide/blockdev/drbd/
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/Documentation/sphinx-static/
Dtheme_overrides.css7 /* Improve contrast and increase size for easier reading. */
12 font-size: 100%;
30 font-size: 100%;
42 font-size: 100%;
75 .rst-content table.docutils caption { text-align: left; font-size: 100%; }
79 * - captions should have 100% (not 85%) font size
84 font-size: 150%;
89 font-size: 100%;
121 font-size: 85%;
/Documentation/admin-guide/mm/
Dhugetlbpage.rst11 the Linux kernel. This support is built on top of multiple page size support
31 default huge page size and information about the number of free, reserved
32 and surplus huge pages in the pool of huge pages of default size.
33 The huge page size is needed for generating the proper alignment and
34 size of the arguments to system calls that map huge page regions.
48 is the size of the pool of huge pages.
64 is the default hugepage size (in Kb).
98 of a specific size, one must precede the huge pages boot command parameters
99 with a huge page size selection parameter "hugepagesz=<size>". <size> must
101 page size may be selected with the "default_hugepagesz=<size>" boot parameter.
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/Documentation/filesystems/
Derofs.txt22 - Currently 4KB block size (nobh) and therefore maximum 16TB address space;
28 Inode metadata size: 32 bytes 64 bytes
29 Max file size: 4 GB 16 EB (also limited by max. vol size)
78 |-> aligned with the block size
84 All data areas should be aligned with the block size, but metadata areas
88 value (32 bytes) and designed to be kept in line with v1 inode size.
99 |-> aligned with the inode slot size
136 2) fixed-output size data compression (must have extents);
139 The size of the optional xattrs is indicated by i_xattr_count in inode
195 size size size size size
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/Documentation/admin-guide/device-mapper/
Ddm-service-time.rst9 The service time for each path is estimated by dividing the total size
34 <status> <fail-count> <in-flight-size> <relative_throughput>
39 <in-flight-size>:
40 The size of in-flight I/Os on the path.
49 dm-service-time adds the I/O size to 'in-flight-size' when the I/O is
54 ('in-flight-size' + 'size-of-incoming-io') / 'relative_throughput'
60 the division and just compare the 'in-flight-size'.
62 2. If the paths have the same 'in-flight-size', skip the division
Ddm-integrity.rst44 2. load the dm-integrity target with one-sector size, the kernel driver
48 5. load the dm-integrity target with the the target size
51 with the size "provided_data_sectors"
61 3. the size of the integrity tag (if "-" is used, the size is taken from
92 The size of journal, this argument is used only if formatting the
109 The tag area is accessed using buffers, the buffer size is
110 configurable. The large buffer size means that the I/O size will
114 The journal watermark in percents. When the size of the journal
152 the size of files that were written. To protect against this
167 The size of a data block in bytes. The larger the block size the
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