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/OK3568_Linux_fs/kernel/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>;
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/OK3568_Linux_fs/kernel/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
44 * Locate cache slot in range [offset, index] for specified inode. If
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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
35 intermediate buffer and then memcopied it into the page cache.
37 the page cache.
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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
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/OK3568_Linux_fs/kernel/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
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()
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()
39 if (inode->i_size != AFFS_I(inode)->mmu_private) in affs_file_release()
51 struct super_block *sb = inode->i_sb; in affs_grow_extcache()
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/OK3568_Linux_fs/kernel/arch/powerpc/kernel/
H A Dcacheinfo.c1 // 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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/OK3568_Linux_fs/u-boot/arch/arm/cpu/armv8/
H A Dcache_v8.c8 * SPDX-License-Identifier: GPL-2.0+
27 * 63-48 47-39 38-30 29-21 20-12 11-00
29 * mask page size
31 * Lv0: FF8000000000 --
43 int i; in get_tcr() local
46 for (i = 0; mem_map[i].size || mem_map[i].attrs; i++) in get_tcr()
47 max_addr = max(max_addr, mem_map[i].virt + mem_map[i].size); in get_tcr()
101 return (12 + 9 * (3 - level)); in level2shift()
110 int i; in find_pte() local
122 pte = (u64*)gd->arch.tlb_addr; in find_pte()
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/OK3568_Linux_fs/kernel/drivers/rkflash/
H A Dsfc_nand_mtd_bbt.c1 // SPDX-License-Identifier: GPL-2.0
6 * Boris Brezillon <boris.brezillon@free-electrons.com>
32 * nanddev_read_bbt() - Read the BBT (Bad Block Table)
34 * @block: bbt block address
35 * @update: true - get version and overwrite bbt.cache with new version;
36 * false - get bbt version only;
38 * Initialize the in-memory BBT.
42 static int nanddev_read_bbt(struct snand_mtd_dev *nand, u32 block, bool update) in nanddev_read_bbt() argument
47 BITS_PER_LONG) * sizeof(*nand->bbt.cache); in nanddev_read_bbt()
55 u32 page_addr, i; in nanddev_read_bbt() local
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/OK3568_Linux_fs/buildroot/dl/stressapptest/git/
H A Dstressapptest.11 .TH STRESSAPPTEST 1 2009-10-20
3 stressapptest \- stress test application for simulating high load situations
13 tries to maximize randomized traffic to memory from processor and I/O, with the
20 .B \-A
24 .B \-C <threads>
28 .B \-d <device>
29 Add a direct write disk thread with block device (or file) 'device'.
32 .B \-f <filename>
36 .B \-F
40 .B \-i <threads>
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/OK3568_Linux_fs/kernel/arch/riscv/boot/dts/kendryte/
H A Dk210.dtsi1 // 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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/OK3568_Linux_fs/kernel/arch/riscv/kernel/
H A Dcacheinfo.c1 // 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()
32 * that cores have a homonogenous view of the cache hierarchy. That in get_cacheinfo()
33 * happens to be the case for the current set of RISC-V systems, but in get_cacheinfo()
42 for (index = 0; index < this_cpu_ci->num_leaves; index++) { in get_cacheinfo()
43 this_leaf = this_cpu_ci->info_list + index; in get_cacheinfo()
44 if (this_leaf->level == level && this_leaf->type == type) in get_cacheinfo()
55 return this_leaf ? this_leaf->size : 0; in get_cache_size()
62 return this_leaf ? (this_leaf->ways_of_associativity << 16 | in get_cache_geometry()
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/OK3568_Linux_fs/kernel/drivers/md/
H A Ddm-cache-target.c8 #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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/OK3568_Linux_fs/kernel/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 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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/OK3568_Linux_fs/kernel/Documentation/admin-guide/
H A Dbcache.rst2 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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/OK3568_Linux_fs/kernel/drivers/gpu/arm/mali400/ump/linux/
H A Dump_osk_low_level_mem.c2 * Copyright (C) 2010-2014, 2016-2017 ARM Limited. All rights reserved.
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
31 #include <linux/dma-mapping.h>
68 address = vmf->virtual_address; in ump_cpu_page_fault_handler()
70 MSG_ERR(("Page-fault in UMP memory region caused by the CPU\n")); in ump_cpu_page_fault_handler()
85 vma_usage_tracker = (ump_vma_usage_tracker *)vma->vm_private_data; in ump_vma_open()
88 new_val = atomic_inc_return(&vma_usage_tracker->references); in ump_vma_open()
99 vma_usage_tracker = (ump_vma_usage_tracker *)vma->vm_private_data; in ump_vma_close()
102 new_val = atomic_dec_return(&vma_usage_tracker->references); in ump_vma_close()
109 descriptor = vma_usage_tracker->descriptor; in ump_vma_close()
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/OK3568_Linux_fs/kernel/arch/powerpc/include/asm/
H A Dvdso_datapage.h1 /* 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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/OK3568_Linux_fs/kernel/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,
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/OK3568_Linux_fs/kernel/arch/powerpc/boot/dts/
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>;
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/OK3568_Linux_fs/u-boot/fs/reiserfs/
H A Dreiserfs_private.h2 * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
4 * GRUB -- GRand Unified Bootloader
7 * (C) Copyright 2003 - 2004
11 * SPDX-License-Identifier: GPL-2.0+
32 /* This is the new super block of a journaling reiserfs system */
37 __u32 s_root_block; /* root block number */
38 __u32 s_journal_block; /* journal block number */
40 …__u32 s_journal_size; /* size of the journal on FS creation. used to make sure they don't overfl…
46 __u16 s_blocksize; /* block size */
47 __u16 s_oid_maxsize; /* max size of object id array */
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H A Dreiserfs.c2 * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
4 * GRUB -- GRand Unified Bootloader
7 * (C) Copyright 2003 - 2004
11 * SPDX-License-Identifier: GPL-2.0+
52 return -1; in substring()
67 printf ("%-10s %4hd %6d %6d %9d %24.24s", in sd_print_item()
74 printf ("%-10s %4d %6d %6d %9d %24.24s", in sd_print_item()
81 journal_read (int block, int len, char *buffer) in journal_read() argument
83 return reiserfs_devread ((INFO->journal_block + block) << INFO->blocksize_shift, in journal_read()
87 /* Read a block from ReiserFS file system, taking the journal into
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/OK3568_Linux_fs/kernel/Documentation/filesystems/
H A Dsquashfs.rst1 .. SPDX-License-Identifier: GPL-2.0
7 Squashfs is a compressed read-only filesystem for Linux.
11 minimise data overhead. Block sizes greater than 4K are supported up to a
12 maximum of 1Mbytes (default block size 128K).
14 Squashfs is intended for general read-only filesystem use, for archival
15 use (i.e. in cases where a .tar.gz file may be used), and in constrained
16 block device/memory systems (e.g. embedded systems) where low overhead is
19 Mailing list: squashfs-devel@lists.sourceforge.net
23 ----------------------
30 Max filesystem size 2^64 256 MiB
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/OK3568_Linux_fs/kernel/fs/btrfs/
H A Dblock-group.c1 // SPDX-License-Identifier: GPL-2.0
5 #include "block-group.h"
6 #include "space-info.h"
7 #include "disk-io.h"
8 #include "free-space-cache.h"
9 #include "free-space-tree.h"
12 #include "ref-verify.h"
14 #include "tree-log.h"
15 #include "delalloc-space.h"
27 struct btrfs_balance_control *bctl = fs_info->balance_ctl; in get_restripe_target()
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/OK3568_Linux_fs/u-boot/fs/yaffs2/
H A Dyaffs_guts.c2 * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
4 * Copyright (C) 2002-2011 Aleph One Ltd.
53 chunk = (u32) (addr >> dev->chunk_shift); in yaffs_addr_to_chunk()
55 if (dev->chunk_div == 1) { in yaffs_addr_to_chunk()
57 offset = (u32) (addr & dev->chunk_mask); in yaffs_addr_to_chunk()
59 /* Non power-of-2 case */ in yaffs_addr_to_chunk()
63 chunk /= dev->chunk_div; in yaffs_addr_to_chunk()
65 chunk_base = ((loff_t) chunk) * dev->data_bytes_per_chunk; in yaffs_addr_to_chunk()
66 offset = (u32) (addr - chunk_base); in yaffs_addr_to_chunk()
125 int i; in yaffs_init_tmp_buffers() local
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/OK3568_Linux_fs/kernel/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 */
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/OK3568_Linux_fs/kernel/drivers/md/bcache/
H A Ddebug.c1 // SPDX-License-Identifier: GPL-2.0
24 #define for_each_written_bset(b, start, i) \ argument
25 for (i = (start); \
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()
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