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/linux/arch/riscv/boot/dts/sophgo/
H A Dsg2044-cpus.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 #address-cells = <2>;
8 #size-cells = <2>;
11 #address-cells = <1>;
12 #size-cells = <0>;
13 timebase-frequency = <50000000>;
18 i-cache-block-size = <64>;
19 i-cache-size = <65536>;
20 i-cache-sets = <512>;
21 d-cache-block-size = <64>;
[all …]
H A Dcv180x-cpus.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
9 #address-cells = <1>;
10 #size-cells = <0>;
11 timebase-frequency = <25000000>;
17 d-cache-block-size = <64>;
18 d-cache-sets = <512>;
19 d-cache-size = <65536>;
20 i-cache-block-size = <64>;
21 i-cache-sets = <128>;
22 i-cache-size = <32768>;
[all …]
/linux/arch/riscv/boot/dts/spacemit/
H A Dk1.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
6 #include <dt-bindings/clock/spacemit,k1-syscon.h>
8 /dts-v1/;
10 #address-cells = <2>;
11 #size-cells = <2>;
16 #address-cells = <1>;
17 #size-cells = <0>;
18 timebase-frequency = <24000000>;
20 cpu-map {
57 riscv,isa-base = "rv64i";
[all …]
/linux/arch/riscv/boot/dts/sifive/
H A Dfu540-c000.dtsi1 // 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>;
[all …]
H A Dfu740-c000.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
4 /dts-v1/;
6 #include <dt-bindings/clock/sifive-fu740-prci.h>
9 #address-cells = <2>;
10 #size-cells = <2>;
11 compatible = "sifive,fu740-c000", "sifive,fu740";
23 #address-cells = <1>;
24 #size-cells = <0>;
28 i-cache-block-size = <64>;
29 i-cache-sets = <128>;
[all …]
/linux/Documentation/devicetree/bindings/riscv/
H A Dcpus.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V CPUs
10 - Paul Walmsley <paul.walmsley@sifive.com>
11 - Palmer Dabbelt <palmer@sifive.com>
12 - Conor Dooley <conor@kernel.org>
15 This document uses some terminology common to the RISC-V community
19 mandated by the RISC-V ISA: a PC and some registers. This
27 - $ref: /schemas/cpu.yaml#
[all …]
/linux/fs/squashfs/
H A Dfile.c1 // 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
45 * Locate cache slot in range [offset, index] for specified inode. If
[all …]
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "SquashFS 4.0 - Squashed file system support"
4 depends on BLOCK
7 Read-Only File System). Squashfs is a highly compressed read-only
11 Block sizes greater than 4K are supported up to a maximum of 1 Mbytes
12 (default block size 128K). SquashFS 4.0 supports 64 bit filesystems
16 Squashfs is intended for general read-only filesystem use, for
17 archival use (i.e. in cases where a .tar.gz file may be used), and in
19 and tools are available from github.com/plougher/squashfs-tools.
35 intermediate buffer and then memcopied it into the page cache.
[all …]
H A Dcache.c1 // 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
25 * which have been read as as a result of a metadata (i.e. inode or
[all …]
/linux/arch/riscv/boot/dts/microchip/
H A Dmpfs.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /* Copyright (c) 2020-2021 Microchip Technology Inc */
4 /dts-v1/;
5 #include "dt-bindings/clock/microchip,mpfs-clock.h"
8 #address-cells = <2>;
9 #size-cells = <2>;
14 #address-cells = <1>;
15 #size-cells = <0>;
16 timebase-frequency = <1000000>;
21 i-cache-block-size = <64>;
[all …]
/linux/fs/affs/
H A Dfile.c1 // 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
27 inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); in affs_file_open()
28 atomic_inc(&AFFS_I(inode)->i_opencnt); in affs_file_open()
36 inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); in affs_file_release()
38 if (atomic_dec_and_test(&AFFS_I(inode)->i_opencnt)) { in affs_file_release()
40 if (inode->i_size != AFFS_I(inode)->mmu_private) in affs_file_release()
52 struct super_block *sb = inode->i_sb; in affs_grow_extcache()
[all …]
/linux/arch/powerpc/kernel/
H A Dcacheinfo.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Processor cache information made available to userspace via sysfs;
26 /* per-cpu object for tracking:
27 * - a "cache" kobject for the top-level directory
28 * - a list of "index" objects representing the cpu's local cache hierarchy
31 struct kobject *kobj; /* bare (not embedded) kobject for cache
36 /* "index" object: each cpu's cache directory has an index
37 * subdirectory corresponding to a cache object associated with the
43 struct cache *cache; member
47 * cache type */
[all …]
/linux/fs/btrfs/
H A Dblock-group.c1 // SPDX-License-Identifier: GPL-2.0
7 #include "block-group.h"
8 #include "space-info.h"
9 #include "disk-io.h"
10 #include "free-space-cache
154 btrfs_get_block_group(struct btrfs_block_group * cache) btrfs_get_block_group() argument
159 btrfs_put_block_group(struct btrfs_block_group * cache) btrfs_put_block_group() argument
233 struct btrfs_block_group *cache, *ret = NULL; block_group_cache_tree_search() local
286 btrfs_next_block_group(struct btrfs_block_group * cache) btrfs_next_block_group() argument
416 btrfs_get_caching_control(struct btrfs_block_group * cache) btrfs_get_caching_control() argument
451 btrfs_wait_block_group_cache_progress(struct btrfs_block_group * cache,u64 num_bytes) btrfs_wait_block_group_cache_progress() argument
476 btrfs_caching_ctl_wait_done(struct btrfs_block_group * cache,struct btrfs_caching_control * caching_ctl) btrfs_caching_ctl_wait_done() argument
483 btrfs_wait_block_group_cache_done(struct btrfs_block_group * cache) btrfs_wait_block_group_cache_done() argument
534 u64 extent_start, extent_end, size; btrfs_add_new_free_space() local
683 int i; load_block_group_size_class() local
926 btrfs_cache_block_group(struct btrfs_block_group * cache,bool wait) btrfs_cache_block_group() argument
1361 inc_block_group_ro(struct btrfs_block_group * cache,bool force) inc_block_group_ro() argument
2150 int i, nr = 0; btrfs_rmap_block() local
2217 exclude_super_stripes(struct btrfs_block_group * cache) exclude_super_stripes() argument
2224 int i, nr, ret; exclude_super_stripes() local
2274 struct btrfs_block_group *cache; btrfs_create_block_group_cache() local
2369 struct btrfs_block_group *cache; read_one_block_group() local
2540 struct btrfs_block_group *cache; btrfs_read_block_groups() local
2600 int i; btrfs_read_block_groups() local
2734 int i; insert_dev_extents() local
2883 btrfs_make_block_group(struct btrfs_trans_handle * trans,struct btrfs_space_info * space_info,u64 type,u64 chunk_offset,u64 size) btrfs_make_block_group() argument
2886 struct btrfs_block_group *cache; btrfs_make_block_group() local
2978 btrfs_inc_block_group_ro(struct btrfs_block_group * cache,bool do_chunk_alloc) btrfs_inc_block_group_ro() argument
3092 btrfs_dec_block_group_ro(struct btrfs_block_group * cache) btrfs_dec_block_group_ro() argument
3123 update_block_group_item(struct btrfs_trans_handle * trans,struct btrfs_path * path,struct btrfs_block_group * cache) update_block_group_item() argument
3357 struct btrfs_block_group *cache, *tmp; btrfs_setup_space_cache() local
3394 struct btrfs_block_group *cache; btrfs_start_dirty_block_groups() local
3559 struct btrfs_block_group *cache; btrfs_write_dirty_block_groups() local
3685 struct btrfs_block_group *cache; btrfs_update_block_group() local
3801 btrfs_add_reserved_bytes(struct btrfs_block_group * cache,u64 ram_bytes,u64 num_bytes,int delalloc,bool force_wrong_size_class) btrfs_add_reserved_bytes() argument
3854 btrfs_free_reserved_bytes(struct btrfs_block_group * cache,u64 num_bytes,bool is_delalloc) btrfs_free_reserved_bytes() argument
4445 for (int i = 0; i < BTRFS_SPACE_INFO_SUB_GROUP_MAX; i++) { check_removing_space_info() local
4583 btrfs_freeze_block_group(struct btrfs_block_group * cache) btrfs_freeze_block_group() argument
4642 btrfs_calc_block_group_size_class(u64 size) btrfs_calc_block_group_size_class() argument
[all...]
H A Dzoned.c1 // SPDX-License-Identifier: GPL-2.0
12 #include "disk-io.h"
13 #include "block-group.h"
14 #include "dev-replace.h"
15 #include "space-info.h"
25 #define WP_MISSING_DEV ((u64)-1)
27 #define WP_CONVENTIONAL ((u64)-2)
32 * - primary superblock: 0B (zone 0)
33 * - first copy: 512G (zone starting at that offset)
34 * - second copy: 4T (zone starting at that offset)
[all …]
/linux/arch/powerpc/boot/dts/
H A Dmicrowatt.dts1 /dts-v1/;
2 #include <dt-bindings/gpio/gpio.h>
5 #size-cells = <0x02>;
6 #address-cells = <0x02>;
8 compatible = "microwatt-soc";
15 reserved-memory {
16 #size-cells = <0x02>;
17 #address-cells = <0x02>;
28 #clock-cells = <0>;
29 compatible = "fixed-clock";
[all …]
H A Diss4xx-mpic.dts15 /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>;
[all …]
/linux/drivers/md/
H A Ddm-cache-target.c1 // SPDX-License-Identifier: GPL-2.0-only
9 #include "dm-bio-prison-v2.h"
10 #include "dm-bio-record.h"
11 #include "dm-cache-metadata.h"
12 #include "dm-io-tracker.h"
13 #include "dm-cache-background-tracker.h"
15 #include <linux/dm-io.h>
16 #include <linux/dm-kcopyd.h>
25 #define DM_MSG_PREFIX "cache"
28 "A percentage of time allocated for copying to and/or from cache");
[all …]
/linux/arch/riscv/boot/dts/thead/
H A Dth1520.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 #include <dt-bindings/interrupt-controller/irq.h>
8 #include <dt-bindings/clock/thead,th1520-clk-ap.h>
9 #include <dt-bindings/power/thead,th1520-power.h>
10 #include <dt-bindings/reset/thead,th1520-reset.h>
14 #address-cells = <2>;
15 #size-cells = <2>;
18 #address-cells = <1>;
19 #size-cells = <0>;
20 timebase-frequency = <3000000>;
[all …]
/linux/Documentation/admin-guide/device-mapper/
H A Ddm-clone.rst1 .. SPDX-License-Identifier: GPL-2.0-only
4 dm-clone
10 dm-clone is a device mapper target which produces a one-to-one copy of an
11 existing, read-only source device into a writable destination device: It
12 presents a virtual block device which makes all data appear immediately, and
15 The main use case of dm-clone is to clone a potentially remote, high-latency,
16 read-only, archival-type block device into a writable, fast, primary-type device
17 for fast, low-latency I/O. The cloned device is visible/mountable immediately
19 background, in parallel with user I/O.
21 For example, one could restore an application backup from a read-only copy,
[all …]
H A Dcache.rst2 Cache title
8 dm-cache is a device mapper target written by Joe Thornber, Heinz
11 It aims to improve performance of a block device (eg, a spindle) by
15 This device-mapper solution allows us to insert this caching at
17 a thin-provisioning pool. Caching solutions that are integrated more
20 The target reuses the metadata library used in the thin-provisioning
23 The decision as to what data to migrate and when is left to a plug-in
32 Movement of the primary copy of a logical block from one
39 The origin device always contains a copy of the logical block, which
40 may be out of date or kept in sync with the copy on the cache device
[all …]
H A Dwritecache.rst6 doesn't cache reads because reads are supposed to be cached in page cache
14 1. type of the cache device - "p" or "s"
15 - p - persistent memory
16 - s - SSD
18 3. the cache device
19 4. block size (4096 is recommended; the maximum block size is the page
20 size)
25 offset from the start of cache device in 512-byte sectors
45 applicable only to persistent memory - use the FUA flag
49 applicable only to persistent memory - don't use the FUA
[all …]
/linux/fs/nilfs2/
H A Dbtnode.c1 // SPDX-License-Identifier: GPL-2.0+
3 * NILFS B-tree node cache
5 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
15 #include <linux/backing-dev.h>
25 * nilfs_init_btnc_inode - initialize B-tree node cache inode
28 * nilfs_init_btnc_inode() sets up an inode for B-tree node cache.
34 btnc_inode->i_mode = S_IFREG; in nilfs_init_btnc_inode()
35 ii->i_flags = 0; in nilfs_init_btnc_inode()
36 memset(&ii->i_bmap_data, 0, sizeof(struct nilfs_bmap)); in nilfs_init_btnc_inode()
37 mapping_set_gfp_mask(btnc_inode->i_mapping, GFP_NOFS); in nilfs_init_btnc_inode()
[all …]
/linux/arch/mips/include/asm/octeon/
H A Dcvmx-fpa.h7 * 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
41 #include <asm/octeon/cvmx-address.h>
42 #include <asm/octeon/cvmx-fpa-defs.h>
56 * the (64-bit word) location in scratchpad to write
62 /* the ID of the device on the non-coherent bus */
84 /* Size of each block */
85 uint64_t size; member
86 /* The base memory address of whole block */
[all …]
/linux/arch/riscv/boot/dts/anlogic/
H A Ddr1v90.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
6 /dts-v1/;
8 #address-cells = <2>;
9 #size-cells = <2>;
14 #address-cells = <1>;
15 #size-cells = <0>;
16 timebase-frequency = <800000000>;
20 d-cache-block-size = <64>;
21 d-cache-sets = <256>;
22 d-cache-size = <32768>;
[all …]
/linux/arch/sh/boot/dts/
H A Dj2_mimas_v2.dts1 // 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>;
[all …]

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