| /linux-5.10/arch/riscv/boot/dts/sifive/ |
| D | fu540-c000.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /* Copyright (c) 2018-2019 SiFive, Inc */
4 /dts-v1/;
6 #include <dt-bindings/clock/sifive-fu540-prci.h>
9 #address-cells = <2>;
10 #size-cells = <2>;
11 compatible = "sifive,fu540-c000", "sifive,fu540";
23 #address-cells = <1>;
24 #size-cells = <0>;
28 i-cache-block-size = <64>;
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| /linux-5.10/fs/squashfs/ |
| D | file.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Squashfs - a compressed read only filesystem for Linux
14 * compressed fragment block (tail-end packed block). The compressed size
15 * of each datablock is stored in a block list contained within the
19 * larger), the code implements an index cache that caches the mapping from
20 * block index to datablock location on disk.
22 * The index cache allows Squashfs to handle large files (up to 1.75 TiB) while
23 * retaining a simple and space-efficient block list on disk. The cache
26 * The index cache is designed to be memory efficient, and by default uses
44 * Locate cache slot in range [offset, index] for specified inode. If
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| D | cache.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Squashfs - a compressed read only filesystem for Linux
8 * cache.c
15 * This file implements a generic cache implementation used for both caches,
16 * plus functions layered ontop of the generic cache implementation to
19 * To avoid out of memory and fragmentation issues with vmalloc the cache
22 * It should be noted that the cache is not used for file datablocks, these
23 * are decompressed and cached in the page-cache in the normal way. The
24 * cache is only used to temporarily cache fragment and metadata blocks
29 * have been packed with it, these because of locality-of-reference may be read
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| /linux-5.10/Documentation/admin-guide/ |
| D | bcache.rst | 2 A block layer cache (bcache)
6 nice if you could use them as cache... Hence bcache.
11 This is the git repository of bcache-tools:
12 https://git.kernel.org/pub/scm/linux/kernel/git/colyli/bcache-tools.git/
17 It's designed around the performance characteristics of SSDs - it only allocates
18 in erase block sized buckets, and it uses a hybrid btree/log to track cached
19 extents (which can be anywhere from a single sector to the bucket size). It's
20 designed to avoid random writes at all costs; it fills up an erase block
25 great lengths to protect your data - it reliably handles unclean shutdown. (It
29 Writeback caching can use most of the cache for buffering writes - writing
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| /linux-5.10/arch/powerpc/kernel/ |
| D | cacheinfo.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Processor cache information made available to userspace via sysfs;
27 /* per-cpu object for tracking:
28 * - a "cache" kobject for the top-level directory
29 * - a list of "index" objects representing the cpu's local cache hierarchy
32 struct kobject *kobj; /* bare (not embedded) kobject for cache
37 /* "index" object: each cpu's cache directory has an index
38 * subdirectory corresponding to a cache object associated with the
44 struct cache *cache; member
48 * cache type */
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| /linux-5.10/arch/riscv/kernel/ |
| D | cacheinfo.c | 1 // SPDX-License-Identifier: GPL-2.0-only
22 if (rv_cache_ops && rv_cache_ops->get_priv_group) in cache_get_priv_group()
23 return rv_cache_ops->get_priv_group(this_leaf); in cache_get_priv_group()
33 for (index = 0; index < this_cpu_ci->num_leaves; index++) { in get_cacheinfo()
34 this_leaf = this_cpu_ci->info_list + index; in get_cacheinfo()
35 if (this_leaf->level == level && this_leaf->type == type) in get_cacheinfo()
46 return this_leaf ? this_leaf->size : 0; in get_cache_size()
53 return this_leaf ? (this_leaf->ways_of_associativity << 16 | in get_cache_geometry()
54 this_leaf->coherency_line_size) : in get_cache_geometry()
59 unsigned int level, unsigned int size, in ci_leaf_init() argument
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| /linux-5.10/arch/riscv/boot/dts/kendryte/ |
| D | k210.dtsi | 1 // SPDX-License-Identifier: GPL-2.0+
6 #include <dt-bindings/clock/k210-clk.h>
10 * Although the K210 is a 64-bit CPU, the address bus is only 32-bits
13 #address-cells = <1>;
14 #size-cells = <1>;
23 * Since this is a non-ratified draft specification, the kernel does not
28 #address-cells = <1>;
29 #size-cells = <0>;
30 timebase-frequency = <7800000>;
36 mmu-type = "none";
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| /linux-5.10/fs/ext2/ |
| D | xattr.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2001-2003 Andreas Gruenbacher <agruen@suse.de>
18 * block. If all extended attributes of an inode are identical, these
19 * inodes may share the same extended attribute block. Such situations
20 * are automatically detected by keeping a cache of recent attribute block
21 * numbers and hashes over the block's contents in memory.
24 * Extended attribute block layout:
26 * +------------------+
36 * +------------------+
38 * The block header is followed by multiple entry descriptors. These entry
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| /linux-5.10/fs/affs/ |
| D | file.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * (c) 1996 Hans-Joachim Widmaier - Rewritten
7 * (C) 1993 Ray Burr - Modified for Amiga FFS filesystem.
11 * (C) 1991 Linus Torvalds - minix filesystem
25 pr_debug("open(%lu,%d)\n", in affs_file_open()
26 inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); in affs_file_open()
27 atomic_inc(&AFFS_I(inode)->i_opencnt); in affs_file_open()
34 pr_debug("release(%lu, %d)\n", in affs_file_release()
35 inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); in affs_file_release()
37 if (atomic_dec_and_test(&AFFS_I(inode)->i_opencnt)) { in affs_file_release()
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| /linux-5.10/arch/powerpc/include/asm/ |
| D | vdso_datapage.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
61 __u64 physicalMemorySize; /* Size of real memory(B) 0x28 */
69 __u32 dcache_size; /* L1 d-cache size 0x60 */
70 __u32 dcache_line_size; /* L1 d-cache line size 0x64 */
71 __u32 icache_size; /* L1 i-cache size 0x68 */
72 __u32 icache_line_size; /* L1 i-cache line size 0x6C */
77 __u32 dcache_block_size; /* L1 d-cache block size */
78 __u32 icache_block_size; /* L1 i-cache block size */
79 __u32 dcache_log_block_size; /* L1 d-cache log block size */
80 __u32 icache_log_block_size; /* L1 i-cache log block size */
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| /linux-5.10/Documentation/devicetree/bindings/riscv/ |
| D | cpus.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V bindings for 'cpus' DT nodes
10 - Paul Walmsley <paul.walmsley@sifive.com>
11 - Palmer Dabbelt <palmer@sifive.com>
14 This document uses some terminology common to the RISC-V community
18 mandated by the RISC-V ISA: a PC and some registers. This
28 - items:
29 - enum:
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| /linux-5.10/arch/powerpc/boot/dts/ |
| D | iss4xx-mpic.dts | 15 /dts-v1/;
20 #address-cells = <2>;
21 #size-cells = <1>;
22 model = "ibm,iss-4xx";
23 compatible = "ibm,iss-4xx";
24 dcr-parent = <&{/cpus/cpu@0}>;
31 #address-cells = <1>;
32 #size-cells = <0>;
38 clock-frequency = <100000000>; // 100Mhz :-)
39 timebase-frequency = <100000000>;
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| D | iss4xx.dts | 15 /dts-v1/;
18 #address-cells = <2>;
19 #size-cells = <1>;
20 model = "ibm,iss-4xx";
21 compatible = "ibm,iss-4xx";
22 dcr-parent = <&{/cpus/cpu@0}>;
29 #address-cells = <1>;
30 #size-cells = <0>;
36 clock-frequency = <100000000>; // 100Mhz :-)
37 timebase-frequency = <100000000>;
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| D | ps3.dts | 1 // SPDX-License-Identifier: GPL-2.0-only
9 /dts-v1/;
14 #size-cells = <2>;
15 #address-cells = <2>;
21 * We'll get the size of the bootmem block from lv1 after startup,
33 * dtc expects a clock-frequency and timebase-frequency entries, so
38 * threads is with an ibm,ppc-interrupt-server#s entry. We'll put one
43 #size-cells = <0>;
44 #address-cells = <1>;
49 ibm,ppc-interrupt-server#s = <0x0 0x1>;
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| /linux-5.10/arch/sh/boot/dts/ |
| D | j2_mimas_v2.dts | 1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
5 compatible = "jcore,j2-soc";
8 #address-cells = <1>;
9 #size-cells = <1>;
11 interrupt-parent = <&aic>;
14 #address-cells = <1>;
15 #size-cells = <0>;
21 clock-frequency = <50000000>;
22 d-cache-size = <8192>;
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| /linux-5.10/drivers/mtd/ |
| D | sm_ftl.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright © 2009 - Maxim Levitsky
27 "Timeout (in ms) for cache flush (1000 ms default");
31 MODULE_PARM_DESC(debug, "Debug level (0-2)");
34 /* ------------------- sysfs attributes ---------------------------------- */
47 strncpy(buf, sm_attr->data, sm_attr->len); in sm_attr_show()
48 return sm_attr->len; in sm_attr_show()
61 vendor = kstrndup(ftl->cis_buffer + SM_CIS_VENDOR_OFFSET, in sm_create_sysfs_attributes()
62 SM_SMALL_PAGE - SM_CIS_VENDOR_OFFSET, GFP_KERNEL); in sm_create_sysfs_attributes()
72 sysfs_attr_init(&vendor_attribute->dev_attr.attr); in sm_create_sysfs_attributes()
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| /linux-5.10/drivers/gpu/drm/i915/gt/shaders/clear_kernel/ |
| D | ivb.asm | 1 // SPDX-License-Identifier: MIT
10 * 2. Write 32x16 block of all "0" to render target buffer which indirectly clears
11 * 512 bytes of Render Cache.
20 * DW 1.0 - Block Offset to write Render Cache
21 * DW 1.1 [15:0] - Clear Word
22 * DW 1.2 - Delay iterations
23 * DW 1.3 - Enable Instrumentation (only for debug)
24 * DW 1.4 - Rsvd (intended for context ID)
25 * DW 1.5 - [31:16]:SliceCount, [15:0]:SubSlicePerSliceCount
26 * DW 1.6 - Rsvd MBZ (intended for Enable Wait on Total Thread Count)
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| D | hsw.asm | 1 // SPDX-License-Identifier: MIT
10 * 2. Write 32x16 block of all "0" to render target buffer which indirectly clears
11 * 512 bytes of Render Cache.
20 * DW 1.0 - Block Offset to write Render Cache
21 * DW 1.1 [15:0] - Clear Word
22 * DW 1.2 - Delay iterations
23 * DW 1.3 - Enable Instrumentation (only for debug)
24 * DW 1.4 - Rsvd (intended for context ID)
25 * DW 1.5 - [31:16]:SliceCount, [15:0]:SubSlicePerSliceCount
26 * DW 1.6 - Rsvd MBZ (intended for Enable Wait on Total Thread Count)
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| /linux-5.10/drivers/md/ |
| D | dm-cache-target.c | 8 #include "dm-bio-prison-v2.h"
9 #include "dm-bio-record.h"
10 #include "dm-cache-metadata.h"
12 #include <linux/dm-io.h>
13 #include <linux/dm-kcopyd.h>
22 #define DM_MSG_PREFIX "cache"
25 "A percentage of time allocated for copying to and/or from cache");
27 /*----------------------------------------------------------------*/
32 * oblock: index of an origin block
33 * cblock: index of a cache block
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| /linux-5.10/drivers/md/bcache/ |
| D | super.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * bcache setup/teardown code, and some metadata io - read a superblock and
65 unsigned int bucket_size = le16_to_cpu(s->bucket_size); in get_bucket_size()
67 if (sb->version >= BCACHE_SB_VERSION_CDEV_WITH_FEATURES && in get_bucket_size()
69 bucket_size |= le16_to_cpu(s->bucket_size_hi) << 16; in get_bucket_size()
80 sb->first_bucket= le16_to_cpu(s->first_bucket); in read_super_common()
81 sb->nbuckets = le64_to_cpu(s->nbuckets); in read_super_common()
82 sb->bucket_size = get_bucket_size(sb, s); in read_super_common()
84 sb->nr_in_set = le16_to_cpu(s->nr_in_set); in read_super_common()
85 sb->nr_this_dev = le16_to_cpu(s->nr_this_dev); in read_super_common()
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| D | debug.c | 1 // SPDX-License-Identifier: GPL-2.0
26 (void *) i < (void *) (start) + (KEY_SIZE(&b->key) << 9) &&\
27 i->seq == (start)->seq; \
28 i = (void *) i + set_blocks(i, block_bytes(b->c->cache)) * \
29 block_bytes(b->c->cache))
33 struct btree *v = b->c->verify_data; in bch_btree_verify()
37 if (!b->c->verify || !b->c->verify_ondisk) in bch_btree_verify()
40 down(&b->io_mutex); in bch_btree_verify()
41 mutex_lock(&b->c->verify_lock); in bch_btree_verify()
43 ondisk = b->c->verify_ondisk; in bch_btree_verify()
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| /linux-5.10/drivers/base/ |
| D | cacheinfo.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * cacheinfo support - processor cache information via sysfs
26 #define cache_leaves(cpu) (ci_cacheinfo(cpu)->num_leaves)
27 #define per_cpu_cacheinfo(cpu) (ci_cacheinfo(cpu)->info_list)
38 return sib_leaf->fw_token == this_leaf->fw_token; in cache_leaves_are_shared()
41 /* OF properties to query for a given cache type */
50 .size_prop = "cache-size",
51 .line_size_props = { "cache-line-size",
52 "cache-block-size", },
53 .nr_sets_prop = "cache-sets",
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| /linux-5.10/fs/btrfs/ |
| D | extent-tree.c | 1 // SPDX-License-Identifier: GPL-2.0
20 #include "tree-log.h"
21 #include "disk-io.h"
22 #include "print-tree.h"
26 #include "free-space-cache.h"
27 #include "free-space-tree.h"
30 #include "ref-verify.h"
31 #include "space-info.h"
32 #include "block-rsv.h"
33 #include "delalloc-space.h"
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| /linux-5.10/block/partitions/ |
| D | ldm.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ldm - Support for Windows Logical Disk Manager (Dynamic Disks)
6 * Copyright (c) 2001-2012 Anton Altaparmakov
9 * Documentation is available at http://www.linux-ntfs.org/doku.php?id=downloads
23 * ldm_debug/info/error/crit - Output an error message
57 * ldm_parse_privhead - Read the LDM Database PRIVHEAD structure
59 * @ph: In-memory privhead structure in which to return parsed information
62 * sets up the in-memory privhead structure @ph with the obtained information.
77 ph->ver_major = get_unaligned_be16(data + 0x000C); in ldm_parse_privhead()
78 ph->ver_minor = get_unaligned_be16(data + 0x000E); in ldm_parse_privhead()
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| /linux-5.10/drivers/md/persistent-data/ |
| D | dm-bitset.h | 9 #include "dm-array.h"
11 /*----------------------------------------------------------------*/
15 * uses a tiny, one word cache to reduce the number of array lookups and so
18 * Like the dm-array that it's based on, the caller needs to keep track of
19 * the size of the bitset separately. The underlying dm-array implicitly
20 * knows how many words it's storing and will return -ENODATA if you try
29 * This describes the bitset and includes the cache. It's not called it
33 * b) Get yourself a root. The root is the index of a block of data on the
44 * Even read operations may trigger the cache to be flushed and as such
49 * d) Set a bit with dm_bitset_set_bit().
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