| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/mtd/ |
| D | mtd-physmap.txt | 1 CFI or JEDEC memory-mapped NOR flash, MTD-RAM (NVRAM...)
6 - compatible : should contain the specific model of mtd chip(s)
7 used, if known, followed by either "cfi-flash", "jedec-flash",
8 "mtd-ram" or "mtd-rom".
9 - reg : Address range(s) of the mtd chip(s)
11 non-identical chips can be described in one node.
12 - bank-width : Width (in bytes) of the bank. Equal to the
14 - device-width : (optional) Width of a single mtd chip. If
15 omitted, assumed to be equal to 'bank-width'.
16 - #address-cells, #size-cells : Must be present if the device has
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| /kernel/linux/linux-5.10/Documentation/filesystems/ |
| D | zonefs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 ZoneFS - Zone filesystem for Zoned block devices
11 as a file. Unlike a regular POSIX-compliant file system with native zoned block
17 As such, zonefs is in essence closer to a raw block device access interface
18 than to a full-featured POSIX file system. The goal of zonefs is to simplify
21 direct block device file ioctls which may be more obscure to developers. One
22 example of this approach is the implementation of LSM (log-structured merge)
31 -------------------
35 zones are contiguous (there are no LBA gaps). Zones may have different types.
37 * Conventional zones: there are no access constraints to LBAs belonging to
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/mtd/ |
| D | mtd-physmap.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mtd/mtd-physmap.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: CFI or JEDEC memory-mapped NOR flash, MTD-RAM (NVRAM...)
10 - Rob Herring <robh@kernel.org>
17 - $ref: mtd.yaml#
18 - $ref: /schemas/memory-controllers/mc-peripheral-props.yaml#
23 - items:
24 - enum:
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| /kernel/linux/linux-6.6/Documentation/filesystems/ |
| D | zonefs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 ZoneFS - Zone filesystem for Zoned block devices
11 as a file. Unlike a regular POSIX-compliant file system with native zoned block
17 As such, zonefs is in essence closer to a raw block device access interface
18 than to a full-featured POSIX file system. The goal of zonefs is to simplify
21 direct block device file ioctls which may be more obscure to developers. One
22 example of this approach is the implementation of LSM (log-structured merge)
31 -------------------
35 zones are contiguous (there are no LBA gaps). Zones may have different types.
37 * Conventional zones: there are no access constraints to LBAs belonging to
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| D | erofs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 EROFS - Enhanced Read-Only File System
10 EROFS filesystem stands for Enhanced Read-Only File System. It aims to form a
11 generic read-only filesystem solution for various read-only use cases instead
17 random-access friendly high-performance filesystem to get rid of unneeded I/O
18 amplification and memory-resident overhead compared to similar approaches.
22 - read-only storage media or
24 - part of a fully trusted read-only solution, which means it needs to be
25 immutable and bit-for-bit identical to the official golden image for
28 - hope to minimize extra storage space with guaranteed end-to-end performance
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| /kernel/linux/linux-5.10/fs/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
8 # Use unaligned word dcache accesses
49 bool "Direct Access (DAX) support"
56 Direct Access (DAX) can be used on memory-backed block devices.
60 mount the filesystem using the -o dax option.
74 # get_user_pages() of DAX mappings. I.e. "limited" indicates no support
76 # direct-I/O to a DAX mapping.
115 To the best of my knowledge this is dead code that no one cares about.
141 menu "CD-ROM/DVD Filesystems"
171 Everything in tmpfs is temporary in the sense that no files will be
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| /kernel/linux/linux-6.6/arch/alpha/include/asm/ |
| D | uaccess.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <asm-generic/access_ok.h>
7 * These are the main single-value transfer routines. They automatically
11 * data, we can just do these as direct assignments. (Of course, the
12 * exception handling means that it's no longer "just"...)
15 * (a) re-use the arguments for side effects (sizeof/typeof is ok)
34 * The "lda %1, 2b-1b(%0)" bits are magic to get the assembler to
41 " .long "#label"-.\n" \
42 " lda "#res","#cont"-"#label"("#err")\n" \
65 long __gu_err = -EFAULT; \
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| /kernel/linux/linux-5.10/arch/powerpc/mm/book3s64/ |
| D | radix_pgtable.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2015-2016, Aneesh Kumar K.V, IBM Corporation.
8 #define pr_fmt(fmt) "radix-mmu: " fmt
153 return -ENOMEM; in __map_kernel_page()
160 return -ENOMEM; in __map_kernel_page()
167 return -ENOMEM; in __map_kernel_page()
179 return __map_kernel_page(ea, pa, flags, map_page_size, -1, 0, 0); in radix__map_kernel_page()
196 pr_debug("Changing flags on range %lx-%lx removing 0x%lx\n", in radix__change_memory_range()
255 pr_info("Mapped 0x%016lx-0x%016lx with %s pages%s\n", start, end, buf, in print_mapping()
284 gap = next_boundary(addr, end) - addr; in create_physical_mapping()
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| /kernel/liteos_m/arch/risc-v/nuclei/gcc/ |
| D | los_interrupt.c | 2 * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
86 Input : hwiNum --- hwi num to create
87 hwiPrio --- priority of the hwi
88 hwiMode --- hwi interrupt hwiMode, between vector or non-vector
89 hwiHandler --- hwi handler
90 irqParam --- set trig hwiMode of the hwi handler
109 if ((irqParam == NULL) || (irqParam->pDevId > ECLIC_NEGTIVE_EDGE_TRIGGER)) { in ArchHwiCreate()
116 ECLIC_SetTrigIRQ(hwiNum, irqParam->pDevId); in ArchHwiCreate()
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| /kernel/linux/linux-6.6/fs/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
8 # Use unaligned word dcache accesses
59 bool "File system based Direct Access (DAX) support"
66 Direct Access (DAX) can be used on memory-backed block devices.
71 For a DAX device to support file system access it needs to have
75 # ndctl create-namespace --force --reconfig=namespace0.0 \
76 --mode=fsdax --map=mem
78 See the 'create-namespace' man page for details on the overhead of
79 --map=mem:
80 https://docs.pmem.io/ndctl-user-guide/ndctl-man-pages/ndctl-create-namespace
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| /kernel/linux/linux-6.6/arch/powerpc/boot/dts/ |
| D | o2d.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-or-later
12 gpio-controller;
13 fsl,has-wdt;
14 fsl,wdt-on-boot = <0>;
16 &gpt1 { gpio-controller; };
33 compatible = "fsl,mpc5200b-psc-spi","fsl,mpc5200-psc-spi";
34 #address-cells = <1>;
35 #size-cells = <0>;
36 cell-index = <0>;
48 compatible = "fsl,mpc5200b-psc-uart","fsl,mpc5200-psc-uart";
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| /kernel/linux/linux-5.10/arch/powerpc/boot/dts/ |
| D | o2d.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-or-later
12 gpio-controller;
13 fsl,has-wdt;
14 fsl,wdt-on-boot = <0>;
16 &gpt1 { gpio-controller; };
33 compatible = "fsl,mpc5200b-psc-spi","fsl,mpc5200-psc-spi";
34 #address-cells = <1>;
35 #size-cells = <0>;
36 cell-index = <0>;
40 spi-max-frequency = <250000>;
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| /kernel/linux/linux-5.10/arch/alpha/include/asm/ |
| D | uaccess.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
18 #define USER_DS ((mm_segment_t) { -0x40000000000UL })
20 #define get_fs() (current_thread_info()->addr_limit)
21 #define set_fs(x) (current_thread_info()->addr_limit = (x))
30 * - "addr" doesn't have any high-bits set
31 * - AND "size" doesn't have any high-bits set
32 * - AND "addr+size-(size != 0)" doesn't have any high-bits set
33 * - OR we are in kernel mode.
37 unsigned long __ao_end = __ao_a + __ao_b - !!__ao_b; \
47 * These are the main single-value transfer routines. They automatically
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| /kernel/linux/linux-6.6/Documentation/virt/kvm/x86/ |
| D | mmu.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 - correctness:
18 - security:
21 - performance:
23 - scaling:
25 - hardware:
27 - integration:
31 - dirty tracking:
33 and framebuffer-based displays
34 - footprint:
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| /kernel/linux/linux-5.10/drivers/scsi/ |
| D | scsi_common.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include <asm/unaligned.h>
18 "Direct-Access ",
19 "Sequential-Access",
23 "CD-ROM ",
32 "Direct-Access-RBC",
38 "Direct-Access-ZBC",
42 * scsi_device_type - Return 17-char string indicating device type.
48 return "Well-known LUN "; in scsi_device_type()
50 return "No Device "; in scsi_device_type()
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| /kernel/linux/linux-5.10/Documentation/virt/kvm/ |
| D | mmu.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 - correctness:
18 - security:
21 - performance:
23 - scaling:
25 - hardware:
27 - integration:
31 - dirty tracking:
33 and framebuffer-based displays
34 - footprint:
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| /kernel/linux/linux-6.6/arch/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
20 menu "General architecture-dependent options"
25 Select if the architecture can check permissions at sub-page
71 for kernel debugging, non-intrusive instrumentation and testing.
80 makes certain almost-always-true or almost-always-false branch
83 Certain performance-sensitive kernel code, such as trace points,
97 ( On 32-bit x86, the necessary options added to the compiler
104 Boot time self-test of the branch patching code.
110 Boot time self-test of the call patching code.
130 Uprobes is the user-space counterpart to kprobes: they
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| /kernel/linux/linux-5.10/drivers/gpu/drm/amd/amdkfd/ |
| D | kfd_flat_memory.c | 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
43 * Access to ATC/IOMMU mapped memory w/ associated extension of VA to 48b
45 * “Flat” shader memory access – These are new shader vector memory
47 * sourced from the vector gprs for direct access to memory.
50 * The hardware then determines how to direct the memory request
53 * Unaligned support and alignment check
56 * System Unified Address - SUA
64 * clients (CP/RLC, DMA, SHADER(ifetch, scalar, and vector ops)) to access
80 * HSA64 - ATC/IOMMU 64b
83 * by the CPU so an AMD CPU can only access the high area
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| /kernel/linux/linux-6.6/drivers/scsi/ |
| D | scsi_common.c | 1 // SPDX-License-Identifier: GPL-2.0
12 #include <asm/unaligned.h>
28 "Direct-Access ",
29 "Sequential-Access",
33 "CD-ROM ",
42 "Direct-Access-RBC",
48 "Direct-Access-ZBC",
52 * scsi_device_type - Return 17-char string indicating device type.
58 return "Well-known LUN "; in scsi_device_type()
60 return "No Device "; in scsi_device_type()
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| /kernel/linux/linux-6.6/drivers/gpu/drm/amd/amdkfd/ |
| D | kfd_flat_memory.c | 1 // SPDX-License-Identifier: GPL-2.0 OR MIT
3 * Copyright 2014-2022 Advanced Micro Devices, Inc.
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
44 * Access to ATC/IOMMU mapped memory w/ associated extension of VA to 48b
46 * “Flat” shader memory access – These are new shader vector memory
48 * sourced from the vector gprs for direct access to memory.
51 * The hardware then determines how to direct the memory request
54 * Unaligned support and alignment check
57 * System Unified Address - SUA
65 * clients (CP/RLC, DMA, SHADER(ifetch, scalar, and vector ops)) to access
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| /kernel/linux/linux-5.10/arch/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
12 menu "General architecture-dependent options"
77 for kernel debugging, non-intrusive instrumentation and testing.
86 makes certain almost-always-true or almost-always-false branch
89 Certain performance-sensitive kernel code, such as trace points,
103 ( On 32-bit x86, the necessary options added to the compiler
110 Boot time self-test of the branch patching code.
116 Boot time self-test of the call patching code.
136 Uprobes is the user-space counterpart to kprobes: they
138 to establish unintrusive probes in user-space binaries and
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| /kernel/linux/linux-5.10/fs/xfs/ |
| D | xfs_file.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
29 #include <linux/backing-dev.h>
45 struct xfs_mount *mp = ip->i_mount; in xfs_is_falloc_aligned()
49 if (!is_power_of_2(mp->m_sb.sb_rextsize)) { in xfs_is_falloc_aligned()
53 rextbytes = XFS_FSB_TO_B(mp, mp->m_sb.sb_rextsize); in xfs_is_falloc_aligned()
60 mask = XFS_FSB_TO_B(mp, mp->m_sb.sb_rextsize) - 1; in xfs_is_falloc_aligned()
62 mask = mp->m_sb.sb_blocksize - 1; in xfs_is_falloc_aligned()
76 error = xfs_trans_alloc(ip->i_mount, &M_RES(ip->i_mount)->tr_writeid, in xfs_update_prealloc_flags()
85 VFS_I(ip)->i_mode &= ~S_ISUID; in xfs_update_prealloc_flags()
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| /kernel/linux/linux-6.6/Documentation/admin-guide/sysctl/ |
| D | kernel.rst | 5 .. See scripts/check-sysctl-docs to keep this up to date
13 Documentation/admin-guide/sysctl/index.rst.
15 ------------------------------------------------------------------------------
39 If BSD-style process accounting is enabled these values control
71 The machine hardware name, the same output as ``uname -m``
77 This variable has no effect and may be removed in future kernel
129 Ctrl-Alt-Delete). Writing a value to this file which doesn't
130 correspond to a running process will result in ``-ESRCH``.
132 See also `ctrl-alt-del`_.
209 captured in parallel, but that no waiting will take place (i.e. the
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| /kernel/liteos_m/arch/risc-v/riscv32/gcc/ |
| D | los_interrupt.c | 2 * Copyright (c) 2013-2020, Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2023 Huawei Device Co., Ltd. All rights reserved.
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
49 { "Instruction access fault!" },
53 { "Load access fault!" },
55 { "Store/AMO access fault!" },
56 { "Environment call form U-mode!" },
57 { "Environment call form S-mode!" },
59 { "Environment call form M-mode!" },
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| /kernel/linux/linux-6.6/fs/xfs/ |
| D | xfs_file.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
31 #include <linux/backing-dev.h>
60 return !((pos | len) & (alloc_unit - 1)); in xfs_is_falloc_aligned()
65 * as there is no file data to flush, and thus also no need for explicit
66 * cache flush operations, and there are no non-transaction metadata updates
76 struct xfs_inode *ip = XFS_I(file->f_mapping->host); in xfs_dir_fsync()
89 if (datasync && !(ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP)) in xfs_fsync_seq()
91 return ip->i_itemp->ili_commit_seq; in xfs_fsync_seq()
119 error = xfs_log_force_seq(ip->i_mount, seq, XFS_LOG_SYNC, in xfs_fsync_flush_log()
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