| /openbmc/linux/Documentation/devicetree/bindings/sound/ |
| H A D | atmel,sama5d2-classd.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/sound/atmel,sama5d2-classd.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Nicolas Ferre <nicolas.ferre@microchip.com>
12 - Alexandre Belloni <alexandre.belloni@bootlin.com>
13 - Claudiu Beznea <claudiu.beznea@microchip.com>
21 const: atmel,sama5d2-classd
32 dma-names:
38 clock-names:
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| /openbmc/linux/tools/testing/selftests/net/ |
| H A D | ip_defrag.c | 1 // SPDX-License-Identifier: GPL-2.0
16 #include <time.h>
63 if (ret == -1 && (errno == ETIMEDOUT || errno == EAGAIN)) in recv_validate_udp()
66 if (ret != -1) in recv_validate_udp()
73 if (ret == -1) in recv_validate_udp()
89 sum -= 0xffff; in raw_checksum()
95 sum -= 0xffff; in raw_checksum()
106 sum = raw_checksum((uint8_t *)&iphdr->ip_src, 2 * sizeof(iphdr->ip_src), in udp_checksum()
122 sum = raw_checksum((uint8_t *)&iphdr->ip6_src, 2 * sizeof(iphdr->ip6_src), in udp6_checksum()
124 sum = raw_checksum((uint8_t *)&udphdr->len, sizeof(udphdr->len), sum); in udp6_checksum()
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| /openbmc/linux/Documentation/arch/x86/ |
| H A D | resctrl.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 :Authors: - Fenghua Yu <fenghua.yu@intel.com>
10 - Tony Luck <tony.luck@intel.com>
11 - Vikas Shivappa <vikas.shivappa@intel.com>
38 # mount -t resctrl resctrl [-o cdp[,cdpl2][,mba_MBps]] /sys/fs/resctrl
54 pseudo-locking is a unique way of using cache control to "pin" or
56 "Cache Pseudo-Locking".
93 own settings for cache use which can over-ride
125 Corresponding region is pseudo-locked. No
145 non-linear. This field is purely informational
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| /openbmc/qemu/docs/devel/ |
| H A D | memory.rst | 8 - ordinary RAM
9 - memory-mapped I/O (MMIO)
10 - memory controllers that can dynamically reroute physical memory regions
15 - tracking RAM changes by the guest
16 - setting up coalesced memory for kvm
17 - setting up ioeventfd regions for kvm
28 ----------------
33 - RAM: a RAM region is simply a range of host memory that can be made available
39 - MMIO: a range of guest memory that is implemented by host callbacks;
44 - ROM: a ROM memory region works like RAM for reads (directly accessing
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| /openbmc/linux/drivers/gpu/drm/i915/gt/ |
| H A D | intel_gt_types.h | 1 /* SPDX-License-Identifier: MIT */
53 * overlap in valid steering targets with 'subslice' style registers, we will
54 * need to explicitly re-steer reads of registers of the other type.
56 * Only the replication types that may need additional non-default steering
69 * will always return a non-terminated value at instance (0, 0). We'll
190 * @total: Total time this engine was busy.
192 * Accumulated time not counting the most recent block in cases
212 * Mask of the non fused CCS slices
250 * Should be taken before uncore->lock in cases where both are desired.
255 * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
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| /openbmc/linux/drivers/video/ |
| H A D | aperture.c | 1 // SPDX-License-Identifier: MIT
20 * driver can be active at any given time. Many systems load a generic
21 * graphics drivers, such as EFI-GOP or VESA, early during the boot process.
23 * hardware-specific driver. To take over the device, the dedicated driver
25 * ownership of framebuffer memory and hand-over between drivers.
32 * .. code-block:: c
42 * return -ENODEV;
43 * base = mem->start;
61 * The given example reads the platform device's I/O-memory range from the
82 * .. code-block:: c
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| /openbmc/linux/Documentation/admin-guide/cgroup-v1/ |
| H A D | cpusets.rst | 11 - Portions Copyright (c) 2004-2006 Silicon Graphics, Inc.
12 - Modified by Paul Jackson <pj@sgi.com>
13 - Modified by Christoph Lameter <cl@linux.com>
14 - Modified by Paul Menage <menage@google.com>
15 - Modified by Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
41 ----------------------
45 an on-line node that contains memory.
54 Documentation/admin-guide/cgroup-v1/cgroups.rst.
73 ----------------------------
77 non-uniform access times (NUMA) presents additional challenges for
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| /openbmc/qemu/docs/specs/ |
| H A D | ppc-spapr-hcalls.rst | 5 When used with the ``pseries`` machine type, ``qemu-system-ppc64`` implements
23 RTAS stands for Run-Time Abstraction Sercies and is a set of runtime services
54 non-cacheable accesses to any guest physical addresses that the
65 of memory (supports overlap of source and destination) and XOR which
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| /openbmc/linux/arch/x86/boot/compressed/ |
| H A D | kaslr.c | 1 // SPDX-License-Identifier: GPL-2.0
41 /* Simplified build-specific string for starting entropy. */
53 hash = (hash << ((sizeof(hash) * 8) - 7)) | (hash >> 7); in rotate_xor()
82 * Store memory limit: MAXMEM on 64-bit and KERNEL_IMAGE_SIZE on 32-bit.
96 MEM_AVOID_MEMMAP_END = MEM_AVOID_MEMMAP_BEGIN + MAX_MEMMAP_REGIONS - 1,
105 if (one->start + one->size <= two->start) in mem_overlaps()
108 if (one->start >= two->start + two->size) in mem_overlaps()
133 return -EINVAL; in parse_memmap()
137 return -EINVAL; in parse_memmap()
142 return -EINVAL; in parse_memmap()
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| /openbmc/linux/Documentation/admin-guide/mm/ |
| H A D | numa_memory_policy.rst | 10 supported platforms with Non-Uniform Memory Access architectures since 2.4.?.
16 (``Documentation/admin-guide/cgroup-v1/cpusets.rst``)
19 programming interface that a NUMA-aware application can take advantage of. When
28 ------------------------
41 not to overload the initial boot node with boot-time
45 this is an optional, per-task policy. When defined for a
61 In a multi-threaded task, task policies apply only to the thread
64 at the time a new task policy is installed retain their current
70 the policy at the time they were allocated.
98 mapping-- i.e., at Copy-On-Write.
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| /openbmc/linux/lib/ |
| H A D | memcpy_kunit.c | 1 // SPDX-License-Identifier: GPL-2.0
97 /* Verify argument side-effects aren't repeated. */ in memcpy_test()
104 compare("argument side-effects", dest, three); in memcpy_test()
135 struct some_bytes overlap = { in memmove_test() local
171 /* Verify argument side-effects aren't repeated. */ in memmove_test()
178 compare("argument side-effects", dest, five); in memmove_test()
181 ptr = &overlap.data[2]; in memmove_test()
182 memmove(ptr, overlap.data, 5); in memmove_test()
183 compare("overlapping write", overlap, overlap_expected); in memmove_test()
195 memchr(larger_array + 1, 0xaa, ARRAY_SIZE(larger_array) - 1)); in memmove_test()
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| /openbmc/linux/drivers/net/wireless/broadcom/brcm80211/brcmsmac/ |
| H A D | main.h | 37 /* Maximum wait time for a MAC suspend */
38 /* uS: 83mS is max packet time (64KB ampdu @ 6Mbps) */
48 * Usage example, e.g. a three-bit field (bits 4-6):
52 * regval = R_REG(osh, ®s->regfoo);
55 * W_REG(osh, ®s->regfoo, regval);
58 (((unsigned)1 << (width)) - 1)
67 /* max # supported core revisions (0 .. MAXCOREREV - 1) */
76 #define BRCMS_SHORTSLOT_AUTO -1 /* Driver will manage Shortslot setting */
91 #define TXFID_QUEUE_MASK 0x0007 /* Bits 0-2 */
92 #define TXFID_SEQ_MASK 0x7FE0 /* Bits 5-15 */
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| /openbmc/qemu/block/ |
| H A D | qcow2.h | 4 * Copyright (c) 2004-2006 Fabrice Bellard
50 #define QCOW_MAX_CLUSTER_OFFSET ((1ULL << 56) - 1)
71 /* Maximum of parallel sub-request per guest request */
89 (QCOW_OFLAG_SUB_ALLOC(Y) - QCOW_OFLAG_SUB_ALLOC(X))
131 #define QCOW2_OPT_DATA_FILE "data-file"
132 #define QCOW2_OPT_LAZY_REFCOUNTS "lazy-refcounts"
133 #define QCOW2_OPT_DISCARD_REQUEST "pass-discard-request"
134 #define QCOW2_OPT_DISCARD_SNAPSHOT "pass-discard-snapshot"
135 #define QCOW2_OPT_DISCARD_OTHER "pass-discard-other"
136 #define QCOW2_OPT_DISCARD_NO_UNREF "discard-no-unref"
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| /openbmc/linux/net/netfilter/ |
| H A D | xt_time.c | 6 * This is a module which is used for time matching
23 u_int8_t month; /* (1-12) */
24 u_int8_t monthday; /* (1-31) */
25 u_int8_t weekday; /* (1-7) */
26 u_int8_t hour; /* (0-23) */
27 u_int8_t minute; /* (0-59) */
28 u_int8_t second; /* (0-59) */
43 * Since time progresses forward, it is best to organize this array in reverse,
44 * to minimize lookup time.
51 /* 2039 - 2030 */
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| /openbmc/linux/fs/nilfs2/ |
| H A D | gcinode.c | 1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
12 * This file adds the cache of on-disk blocks to be moved in garbage
18 * time after they are copied to a new log. Dirty blocks made on the
19 * current generation and the blocks to be moved by GC never overlap
38 * nilfs_gccache_submit_read_data() - add data buffer and submit read request
39 * @inode - gc inode
40 * @blkoff - dummy offset treated as the key for the page cache
41 * @pbn - physical block number of the block
42 * @vbn - virtual block number of the block, 0 for non-virtual block
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| /openbmc/linux/Documentation/userspace-api/media/v4l/ |
| H A D | dev-raw-vbi.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _raw-vbi:
12 information is transmitted, allowing some time while the electron beam
64 time to permit Unix tool chains, programming a device and then reading
89 overlap, or when the driver supports multiple opens and another process
106 .. flat-table:: struct v4l2_vbi_format
107 :header-rows: 0
108 :stub-columns: 0
111 * - __u32
112 - ``sampling_rate``
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| /openbmc/linux/drivers/firmware/tegra/ |
| H A D | ivc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved.
47 * This structure is divided into two-cache aligned parts, the first is only
50 * lines, which is critical to performance and necessary in non-cache coherent
79 if (!ivc->peer) in tegra_ivc_invalidate()
82 dma_sync_single_for_cpu(ivc->peer, phys, TEGRA_IVC_ALIGN, in tegra_ivc_invalidate()
88 if (!ivc->peer) in tegra_ivc_flush()
91 dma_sync_single_for_device(ivc->peer, phys, TEGRA_IVC_ALIGN, in tegra_ivc_flush()
106 * Perform an over-full check to prevent denial of service attacks in tegra_ivc_empty()
109 * expected to check for full or over-full conditions. in tegra_ivc_empty()
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| /openbmc/docs/designs/ |
| H A D | phosphor-hwmon-io-uring.md | 7 - Brandon Kim ([brandonkim@google.com](mailto:brandonkim@google.com), brandonk)
8 - William A. Kennington III ([wak@google.com](mailto:wak@google.com), wak)
18 [phosphor-hwmon](https://github.com/openbmc/phosphor-hwmon)) that may have this
30 method for preventing sensors from blocking all other sensor reads and D-Bus if
31 they do not report failures quickly enough in the phosphor-hwmon repository
32 ([link to change](https://gerrit.openbmc.org/c/openbmc/phosphor-hwmon/+/24337)).
42 - [phosphor-hwmon](https://github.com/openbmc/phosphor-hwmon)
43 - [phosphor-nvme](https://github.com/openbmc/phosphor-nvme)
44 - [dbus-sensors](https://github.com/openbmc/dbus-sensors)
45 - any other appropriate repository
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| /openbmc/linux/arch/x86/platform/intel-quark/ |
| H A D | imr.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * imr.c -- Intel Isolated Memory Region driver
6 * Copyright(c) 2015 Bryan O'Donoghue <pure.logic@nexus-software.ie>
10 * When a device behind a masked port performs an access - snooped or
22 * See quark-x1000-datasheet.pdf for register definitions.
23 * http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/quark-x1000-datasheet.pdf
28 #include <asm-generic/sections.h>
50 * See quark-x1000-datasheet.pdf sections 12.7.4.5 and 12.7.4.6 for
79 * imr_is_enabled - true if an IMR is enabled false otherwise.
84 * other state - for example set to zero but without read/write access
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| /openbmc/linux/arch/ia64/mm/ |
| H A D | init.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 1998-2003 Hewlett-Packard Co
6 * David Mosberger-Tang <davidm@hpl.hp.com>
11 #include <linux/dma-map-ops.h>
58 if (test_bit(PG_arch_1, &folio->flags)) in __ia64_sync_icache_dcache()
59 return; /* i-cache is already coherent with d-cache */ in __ia64_sync_icache_dcache()
62 set_bit(PG_arch_1, &folio->flags); /* mark page as clean */ in __ia64_sync_icache_dcache()
66 * Since DMA is i-cache coherent, any (complete) folios that were written via
68 * flush them when they get mapped into an executable vm-area.
78 left -= folio_size(folio) - offset; in arch_dma_mark_clean()
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| /openbmc/linux/Documentation/networking/ |
| H A D | nexthop-group-resilient.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Resilient Next-hop Groups
7 Resilient groups are a type of next-hop group that is aimed at minimizing
12 the legacy multipath next-hop group, which uses the hash-threshold
15 To select a next hop, hash-threshold algorithm first assigns a range of
22 +-------+-------+-------+-------+-------+
24 +-------+-+-----+---+---+-----+-+-------+
26 +---------+---------+---------+---------+
29 under the hash-threshold algorithm.
32 and 4 in favor of 5. While there will usually be some overlap between the
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| /openbmc/linux/arch/sh/lib/ |
| H A D | memcpy-sh4.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
7 * Modified from memcpy.S and micro-optimised for SH4
16 * It is assumed that there is no overlap between src and dst.
17 * If there is an overlap, then the results are undefined.
21 ! GHIJ KLMN OPQR --> ...G HIJK LMNO PQR.
30 add #-1,r5 ! 79 EX
34 add #-4,r5 ! 50 EX
55 mov.l r3,@-r0 ! 30 LS
72 mov.l r3,@-r0 ! 30 LS
79 add #-6,r2 ! 50 EX
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| /openbmc/linux/Documentation/arch/x86/x86_64/ |
| H A D | mm.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 Complete virtual memory map with 4-level page tables
12 - Negative addresses such as "-23 TB" are absolute addresses in bytes, counted down
13 from the top of the 64-bit address space. It's easier to understand the layout
14 when seen both in absolute addresses and in distance-from-top notation.
16 For example 0xffffe90000000000 == -23 TB, it's 23 TB lower than the top of the
17 64-bit address space (ffffffffffffffff).
22 - "16M TB" might look weird at first sight, but it's an easier way to visualize size
24 It also shows it nicely how incredibly large 64-bit address space is.
32 …0000000000000000 | 0 | 00007fffffffffff | 128 TB | user-space virtual memory, different …
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| /openbmc/linux/Documentation/userspace-api/ |
| H A D | seccomp_filter.rst | 25 to time-of-check-time-of-use (TOCTOU) attacks that are common in system
65 call will return -1 and set errno to ``EINVAL``.
73 true, ``-EACCES`` will be returned. This requirement ensures that filter
79 time, but allow for further decreasing the attack surface during
82 The above call returns 0 on success and non-zero on error.
106 task without executing the system call. ``siginfo->si_call_addr``
108 ``siginfo->si_syscall`` and ``siginfo->si_arch`` will indicate which
111 instruction). The return value register will contain an arch-
112 dependent value -- if resuming execution, set it to something
114 it with ``-ENOSYS`` could overwrite some useful information.)
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| /openbmc/linux/include/uapi/linux/ |
| H A D | hdreg.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
17 #define IDE_DRIVE_TASK_INVALID -1
137 * 0x01->0x02 Reserved
141 * 0x04->0x07 Reserved
146 * 0x09->0x0F Reserved
151 * 0x10->0x1F Reserved
153 #define WIN_READ 0x20 /* 28-Bit */
154 #define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
155 #define WIN_READ_LONG 0x22 /* 28-Bit */
156 #define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
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