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/openbmc/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>;
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/openbmc/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#
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/openbmc/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
35 intermediate buffer and then memcopied it into the page cache.
37 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 …]
/openbmc/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>
11 #address-cells = <2>;
12 #size-cells = <2>;
15 #address-cells = <1>;
16 #size-cells = <0>;
17 timebase-frequency = <3000000>;
24 i-cache-block-size = <64>;
25 i-cache-size = <65536>;
26 i-cache-sets = <512>;
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/openbmc/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>;
20 i-cache-block-size = <64>;
21 i-cache-sets = <128>;
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/openbmc/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 …]
/openbmc/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 …]
/openbmc/u-boot/arch/arm/cpu/armv8/
H A Dcache_v8.c1 // SPDX-License-Identifier: GPL-2.0+
26 * 63-48 47-39 38-30 29-21 20-12 11-00
28 * mask page size
30 * Lv0: FF8000000000 --
42 int i; in get_tcr() local
45 for (i = 0; mem_map[i].size || mem_map[i].attrs; i++) in get_tcr()
46 max_addr = max(max_addr, mem_map[i].virt + mem_map[i].size); in get_tcr()
100 return (12 + 9 * (3 - level)); in level2shift()
109 int i; in find_pte() local
121 pte = (u64*)gd->arch.tlb_addr; in find_pte()
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/openbmc/qemu/contrib/plugins/
H A Dcache.c5 * See the COPYING file in the top-level directory.
12 #include <qemu-plugin.h>
37 * A CacheSet is a set of cache blocks. A memory block that maps to a set can be
38 * put in any of the blocks inside the set. The number of block per set is
41 * Each block contains the stored tag and a valid bit. Since this is not
43 * whether a block is in the cache or not by searching for its tag.
45 * In order to search for memory data in the cache, the set identifier and tag
49 * An address is logically divided into three portions: The block offset,
52 * The set number is used to identify the set in which the block may exist.
81 } Cache; typedef
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/openbmc/linux/arch/powerpc/include/asm/
H A Dvdso_datapage.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
62 __u64 physicalMemorySize; /* Size of real memory(B) 0x28 */
70 __u32 dcache_size; /* L1 d-cache size 0x60 */
71 __u32 dcache_line_size; /* L1 d-cache line size 0x64 */
72 __u32 icache_size; /* L1 i-cache size 0x68 */
73 __u32 icache_line_size; /* L1 i-cache line size 0x6C */
78 __u32 dcache_block_size; /* L1 d-cache block size */
79 __u32 icache_block_size; /* L1 i-cache block size */
80 __u32 dcache_log_block_size; /* L1 d-cache log block size */
81 __u32 icache_log_block_size; /* L1 i-cache log block size */
[all …]
/openbmc/qemu/system/
H A Dphysmem.c21 #include "exec/page-vary.h"
31 #include "hw/core/tcg-cpu-ops.h"
34 #include "exec/exec-all.h"
35 #include "exec/page-protection.h"
37 #include "hw/qdev-core.h"
38 #include "hw/qdev-properties.h"
45 #include "qemu/config-file.h"
46 #include "qemu/error-report.h"
47 #include "qemu/qemu-prin
188 unsigned i; phys_map_node_alloc() local
250 int i; phys_page_compact() local
320 int i; phys_page_find() local
616 int i; tcg_register_iommu_notifier() local
657 int i; tcg_iommu_free_notifier_list() local
817 RAMBlock *block; qemu_get_ram_block() local
857 RAMBlock *block; tlb_reset_dirty_range_all() local
1158 RAMBlock *block; ram_block_format() local
1241 int64_t size; get_file_size() local
1404 file_ram_alloc(RAMBlock * block,ram_addr_t memory,int fd,bool truncate,off_t offset,Error ** errp) file_ram_alloc() argument
1485 find_ram_offset(ram_addr_t size) find_ram_offset() argument
1487 RAMBlock *block, *next_block; find_ram_offset() local
1537 qemu_ram_setup_dump(void * addr,ram_addr_t size) qemu_ram_setup_dump() argument
1626 RAMBlock *block; qemu_ram_set_idstr() local
1652 qemu_ram_unset_idstr(RAMBlock * block) qemu_ram_unset_idstr() argument
1671 RAMBlock *block; qemu_ram_pagesize_largest() local
1699 qemu_ram_resize(RAMBlock * block,ram_addr_t newsize,Error ** errp) qemu_ram_resize() argument
1761 qemu_ram_msync(RAMBlock * block,ram_addr_t start,ram_addr_t length) qemu_ram_msync() argument
1795 int i; dirty_memory_extend() local
1834 RAMBlock *block; ram_block_add() local
1945 qemu_ram_alloc_from_fd(ram_addr_t size,MemoryRegion * mr,uint32_t ram_flags,int fd,off_t offset,Error ** errp) qemu_ram_alloc_from_fd() argument
2014 qemu_ram_alloc_from_file(ram_addr_t size,MemoryRegion * mr,uint32_t ram_flags,const char * mem_path,off_t offset,Error ** errp) qemu_ram_alloc_from_file() argument
2020 RAMBlock *block; qemu_ram_alloc_from_file() local
2063 qemu_ram_alloc_internal(ram_addr_t size,ram_addr_t max_size,void (* resized)(const char *,uint64_t length,void * host),void * host,uint32_t ram_flags,MemoryRegion * mr,Error ** errp) qemu_ram_alloc_internal() argument
2103 qemu_ram_alloc_from_ptr(ram_addr_t size,void * host,MemoryRegion * mr,Error ** errp) qemu_ram_alloc_from_ptr() argument
2110 qemu_ram_alloc(ram_addr_t size,uint32_t ram_flags,MemoryRegion * mr,Error ** errp) qemu_ram_alloc() argument
2117 qemu_ram_alloc_resizeable(ram_addr_t size,ram_addr_t maxsz,void (* resized)(const char *,uint64_t length,void * host),MemoryRegion * mr,Error ** errp) qemu_ram_alloc_resizeable() argument
2127 reclaim_ramblock(RAMBlock * block) reclaim_ramblock() argument
2150 qemu_ram_free(RAMBlock * block) qemu_ram_free() argument
2174 RAMBlock *block; qemu_ram_remap() local
2231 qemu_ram_ptr_length(RAMBlock * block,ram_addr_t addr,hwaddr * size,bool lock,bool is_write) qemu_ram_ptr_length() argument
2232 qemu_ram_ptr_length(RAMBlock * block,ram_addr_t addr,hwaddr * size,bool lock,bool is_write) qemu_ram_ptr_length() argument
2296 RAMBlock *block; qemu_ram_block_from_host() local
2349 RAMBlock *block; qemu_ram_block_by_name() local
2366 RAMBlock *block; qemu_ram_addr_from_host() local
2675 memory_region_flush_rom_device(MemoryRegion * mr,hwaddr addr,hwaddr size) memory_region_flush_rom_device() argument
3356 address_space_cache_init(MemoryRegionCache * cache,AddressSpace * as,hwaddr addr,hwaddr len,bool is_write) address_space_cache_init() argument
3404 address_space_cache_invalidate(MemoryRegionCache * cache,hwaddr addr,hwaddr access_len) address_space_cache_invalidate() argument
3414 address_space_cache_destroy(MemoryRegionCache * cache) address_space_cache_destroy() argument
3435 address_space_translate_cached(MemoryRegionCache * cache,hwaddr addr,hwaddr * xlat,hwaddr * plen,bool is_write,MemTxAttrs attrs) address_space_translate_cached() argument
3516 address_space_read_cached_slow(MemoryRegionCache * cache,hwaddr addr,void * buf,hwaddr len) address_space_read_cached_slow() argument
3533 address_space_write_cached_slow(MemoryRegionCache * cache,hwaddr addr,const void * buf,hwaddr len) address_space_write_cached_slow() argument
3610 RAMBlock *block; qemu_ram_foreach_block() local
3792 MR_SIZE(size) global() argument
3797 int i; mtree_print_dispatch() local
[all...]
/openbmc/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.h"
11 #include "free-space-tree.h"
14 #include "ref-verify.h"
16 #include "tree-log.h"
17 #include "delalloc-space.h"
23 #include "extent-tree.h"
[all …]
H A Dzoned.c1 // SPDX-License-Identifier: GPL-2.0
12 #include "rcu-string.h"
13 #include "disk-io.h"
14 #include "block-group.h"
16 #include "dev-replace.h"
17 #include "space-info.h"
26 #define WP_MISSING_DEV ((u64)-1)
28 #define WP_CONVENTIONAL ((u64)-2)
33 * - primary superblock: 0B (zone 0)
34 * - first copy: 512G (zone starting at that offset)
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/openbmc/qemu/docs/
H A Dqcow2-cache.txt1 qcow2 L2/refcount cache configuration
3 Copyright (C) 2015, 2018-2020 Igalia, S.L.
7 later. See the COPYING file in the top-level directory.
10 ------------
11 The QEMU qcow2 driver has two caches that can improve the I/O
12 performance significantly. However, setting the right cache sizes is
18 Please refer to the docs/interop/qcow2.txt file for an in-depth
23 --------
24 A qcow2 file is organized in units of constant size called clusters.
26 The cluster size is configurable, but it must be a power of two and
[all …]
/openbmc/linux/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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/openbmc/linux/arch/riscv/boot/dts/starfive/
H A Djh7100.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
7 /dts-v1/;
8 #include <dt-bindings/clock/starfive-jh7100.h>
9 #include <dt-bindings/reset/starfive-jh7100.h>
13 #address-cells = <2>;
14 #size-cells = <2>;
17 #address-cells = <1>;
18 #size-cells = <0>;
21 compatible = "sifive,u74-mc", "riscv";
23 d-cache-block-size = <64>;
[all …]
H A Djh7110.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
7 /dts-v1/;
8 #include <dt-bindings/clock/starfive,jh7110-crg.h>
9 #include <dt-bindings/power/starfive,jh7110-pmu.h>
10 #include <dt-bindings/reset/starfive,jh7110-crg.h>
11 #include <dt-bindings/thermal/thermal.h>
15 #address-cells = <2>;
16 #size-cells = <2>;
19 #address-cells = <1>;
20 #size-cells = <0>;
[all …]
/openbmc/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 …]
/openbmc/linux/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>;
[all …]
/openbmc/linux/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
[all …]
/openbmc/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,
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/openbmc/u-boot/fs/reiserfs/
H A Dreiserfs_private.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
5 * GRUB -- GRand Unified Bootloader
8 * (C) Copyright 2003 - 2004
31 /* This is the new super block of a journaling reiserfs system */
36 __u32 s_root_block; /* root block number */
37 __u32 s_journal_block; /* journal block number */
39 …__u32 s_journal_size; /* size of the journal on FS creation. used to make sure they don't overfl…
45 __u16 s_blocksize; /* block size */
46 __u16 s_oid_maxsize; /* max size of object id array */
[all …]

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