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/linux/Documentation/trace/
H A Dmmiotrace.rst2 In-kernel memory-mapped I/O tracing
10 MMIO tracing was originally developed by Intel around 2003 for their Fault
11 Injection Test Harness. In Dec 2006 - Jan 2007, using the code from Intel,
15 Mmiotrace was built for reverse engineering any memory-mapped IO device with
19 Out-of-tree mmiotrace was originally modified for mainline inclusion and
24 -----------
29 is on-line, therefore mmiotrace takes all but one CPU off-line during run-time
30 activation. You can re-enable CPUs by hand, but you have been warned, there
35 ---------------------
38 $ mount -t debugfs debugfs /sys/kernel/debug
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/linux/drivers/regulator/
H A Dslg51000-regulator.c1 // SPDX-License-Identifier: GPL-2.0+
3 // SLG51000 High PSRR, Multi-Output Regulators
20 #include "slg51000-regulator.h"
182 .enable = regulator_enable_regmap,
192 .enable = regulator_enable_regmap,
203 ena_gpiod = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0, in slg51000_of_parse_cb()
206 "gpio-en-ldo"); in slg51000_of_parse_cb()
208 config->ena_gpiod = ena_gpiod; in slg51000_of_parse_cb()
258 chip->rdesc[id] = &regls_desc[id]; in slg51000_regulator_init()
259 rdesc = chip->rdesc[id]; in slg51000_regulator_init()
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/linux/Documentation/hwmon/
H A Dltc4282.rst1 .. SPDX-License-Identifier: GPL-2.0-only
12 Addresses scanned: - I2C 0x40 - 0x5A (7-bit)
13 Addresses scanned: - I2C 0x80 - 0xB4 with a step of 2 (8-bit)
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
25 from a live backplane. Using one or more external N-channel pass transistors,
28 power, energy and fault status. The device features analog foldback current
31 parallel MOSFETs or support a 2-stage start-up that first charges the load
32 capacitance followed by enabling a low on-resistance path to the load. The
35 and power supplies must safely operate. Non-volatile configuration allows for
41 The following attributes are supported. Limits are read-write and all the other
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/linux/drivers/edac/
H A Dzynqmp_edac.c1 // SPDX-License-Identifier: GPL-2.0
51 /* Fault injection data and count registers */
70 #define EDAC_DEVICE "ZynqMP-OCM"
73 * struct ecc_error_info - ECC error log information
74 * @addr: Fault generated at this address
75 * @fault_lo: Generated fault data (lower 32-bit)
76 * @fault_hi: Generated fault data (upper 32-bit)
85 * struct ecc_status - ECC status information to report
88 * @ceinfo: Correctable error log information
89 * @ueinfo: Uncorrectable error log information
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/linux/lib/
H A DKconfig.debug1 # SPDX-License-Identifier: GPL-2.0-only
19 parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst
35 no option to enable/disable at the kernel command line parameter or
50 int "Default console loglevel (1-15)"
60 Note: This does not affect the log level of un-prefixed printk()
65 int "quiet console loglevel (1-15)"
76 int "Default message log level (1-7)"
80 Default log level for printk statements with no specified priority.
82 This was hard-coded to KERN_WARNING since at least 2.6.10 but folks
101 See a previous boot log for the "lpj" value to use for your
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dadi,ltc4282.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nuno Sa <nuno.sa@analog.com>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
20 - adi,ltc4282
25 vdd-supply: true
30 '#clock-cells':
33 adi,rsense-nano-ohms:
36 adi,vin-mode-microvolt:
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/linux/arch/powerpc/include/asm/
H A Dlppaca.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
36 * Pre-v4.14 KVM hypervisors reject the VPA if its size field is smaller than
41 /* cacheline 1 contains read-only data */
55 /* cacheline 2 contains local read-write data */
61 u8 dtl_enable_mask; /* Dispatch Trace Log mask */
65 u8 l2_counters_enable; /* Enable usage of counters for KVM guest */
85 volatile __be64 cmo_faults; /* CMO page fault count */
86 volatile __be64 cmo_fault_time; /* CMO page fault time */
88 volatile __be64 enqueue_dispatch_tb; /* Total TB enqueue->dispatch */
89 volatile __be64 ready_enqueue_tb; /* Total TB ready->enqueue */
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/linux/drivers/crypto/intel/qat/qat_common/
H A Dadf_gen4_ras.h1 /* SPDX-License-Identifier: GPL-2.0-only */
13 /* HI AE Correctable error log */
16 /* HI AE Correctable error log enable */
31 /* HI AE Uncorrectable error log */
34 /* HI AE Uncorrectable error log enable */
37 /* HI CPP Agent Command parity error log */
40 /* HI CPP Agent Command parity error logging enable */
46 /* RI Memory parity error reporting enable */
51 * BIT(0) - BIT(3) - ri_iosf_pdata_rxq[0:3] parity error
52 * BIT(4) - ri_tlq_phdr parity error
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/linux/fs/f2fs/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
19 F2FS is based on Log-structured File System (LFS), which supports
20 versatile "flash-friendly" features. The design has been focused on
24 Since flash-based storages show different characteristics according to
26 and tools support various parameters not only for configuring on-disk
40 - major filesystem information managed by f2fs currently
41 - average SIT information about whole segments
42 - current memory footprint consumed by f2fs.
74 option if you use the setcap command to assign initial process capabi-
88 bool "F2FS fault injection facility"
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/linux/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_gmc.h15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
48 * Ring size as power of two for the log of recent faults.
54 * Hash size as power of two for the log of recent faults
60 * Number of IH timestamp ticks until a fault is considered handled
84 * GMC page fault information
146 /* Change the VMID -> PASID mapping */
149 /* enable/disable PRT support */
150 void (*set_prt)(struct amdgpu_device *adev, bool enable);
160 /* override per-page pte flags */
164 /* get the amount of memory used by the vbios for pre-OS console */
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/linux/tools/testing/selftests/kvm/x86_64/
H A Ddirty_log_page_splitting_test.c
/linux/arch/x86/kernel/
H A Dfred.c1 /* SPDX-License-Identifier: GPL-2.0 */
29 /* When FRED is enabled by default, remove this log message */ in cpu_init_fred_exceptions()
39 * fault is generated because SS doesn't match the SS saved in the FRED in cpu_init_fred_exceptions()
56 * resynchronized with its per-CPU cache. in cpu_init_fred_exceptions()
64 /* Enable FRED */ in cpu_init_fred_exceptions()
69 /* Use int $0x80 for 32-bit system calls in FRED mode */ in cpu_init_fred_exceptions()
/linux/Documentation/fault-injection/
H A Dfault-injection.rst2 Fault injection capabilities infrastructure
5 See also drivers/md/md-faulty.c and "every_nth" module option for scsi_debug.
8 Available fault injection capabilities
9 --------------------------------------
11 - failslab
15 - fail_page_alloc
19 - fail_usercopy
23 - fail_futex
25 injects futex deadlock and uaddr fault errors.
27 - fail_sunrpc
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/linux/arch/sparc/kernel/
H A Dpci_psycho.c1 // SPDX-License-Identifier: GPL-2.0
40 #define PSYCHO_CONTROL_APCKEN 0x0000000000000008UL /* Address Parity Check Enable */
54 #define PSYCHO_PCICTRL_WEN 0x0000000000000200UL /* Power Mgmt Wake Enable */
55 #define PSYCHO_PCICTRL_EEN 0x0000000000000100UL /* PCI Error Interrupt Enable */
57 #define PSYCHO_PCICTRL_AEN 0x000000000000003fUL /* PCI DVMA Arbitration Enable */
72 #define PSYCHO_STRBUF_CTRL_LENAB 0x0000000000000008UL /* LRU Lock Enable */
74 #define PSYCHO_STRBUF_CTRL_DENAB 0x0000000000000002UL /* Diagnostic Mode Enable */
75 #define PSYCHO_STRBUF_CTRL_ENAB 0x0000000000000001UL /* Streaming Buffer Enable */
96 #define PSYCHO_IOMMU_CTRL_LCKEN 0x0000000000800000UL /* Enable translation locking */
99 #define PSYCHO_IOMMU_TSBSZ_1K 0x0000000000000000UL /* TSB Table 1024 8-byte entries */
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H A Dsbus.c1 // SPDX-License-Identifier: GPL-2.0
37 #define IOMMU_CONTROL (0x2400UL - 0x2400UL) /* IOMMU control register */
38 #define IOMMU_TSBBASE (0x2408UL - 0x2400UL) /* TSB base address register */
39 #define IOMMU_FLUSH (0x2410UL - 0x2400UL) /* IOMMU flush register */
40 #define IOMMU_VADIAG (0x4400UL - 0x2400UL) /* SBUS virtual address diagnostic */
41 #define IOMMU_TAGCMP (0x4408UL - 0x2400UL) /* TLB tag compare diagnostics */
42 #define IOMMU_LRUDIAG (0x4500UL - 0x2400UL) /* IOMMU LRU queue diagnostics */
43 #define IOMMU_TAGDIAG (0x4580UL - 0x2400UL) /* TLB tag diagnostics */
44 #define IOMMU_DRAMDIAG (0x4600UL - 0x2400UL) /* TLB data RAM diagnostics */
50 #define STRBUF_CONTROL (0x2800UL - 0x2800UL) /* Control */
[all …]
/linux/drivers/dma/idxd/
H A Dirq.c1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/io-64-nonatomic-lo-hi.h>
35 struct device *dev = &idxd->pdev->dev; in idxd_device_reinit()
47 for (i = 0; i < idxd->max_wq in idxd_device_reinit()
224 struct idxd_evl_fault *fault = container_of(work, struct idxd_evl_fault, work); idxd_evl_fault_work() local
325 struct idxd_evl_fault *fault; process_evl_entry() local
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/linux/drivers/scsi/mpi3mr/
H A Dmpi3mr.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright (C) 2017-2023 Broadcom Inc.
6 * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
14 #include <linux/blk-mq.h>
60 #define MPI3MR_DRIVER_RELDATE "11-November-2024"
64 #define MPI3MR_DRIVER_AUTHOR "Broadcom Inc. <mpi3mr-linuxdrv.pdl@broadcom.com>"
108 MPI3MR_NUM_DEVRMCMD - 1)
114 MPI3MR_NUM_EVTACKCMD - 1)
241 * struct mpi3mr_nvme_pt_sge - Structure to store SGEs for NVMe
261 * struct mpi3mr_buf_map - local structure to
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/linux/Documentation/sound/designs/
H A Dprocfile.rst15 card-specific files are stored in the ``card*`` subdirectories.
40 ``<card>-<device>: <name>``
44 ``<card>-<device>: <id>: <name> : <sub-streams>``
61 The card-specific files are found in ``/proc/asound/card*`` directories.
81 mapping by writing to this device. Read OSS-Emulation.txt for
104 * bit 0 = Enable XRUN/jiffies debug messages
106 * bit 2 = Enable additional jiffies check
109 kernel log when an xrun is detected. The debug message is
117 Since 2.6.30, this option can enable the hwptr check using
124 The general information of this PCM sub-stream.
[all …]
/linux/drivers/misc/bcm-vk/
H A Dbcm_vk_dev.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright 2018-2020 Broadcom.
7 #include <linux/dma-mapping.h>
49 {VK_IMAGE_TYPE_BOOT1, {"vk_a0-boot1.bin", "vk-boot1.bin"}},
50 {VK_IMAGE_TYPE_BOOT2, {"vk_a0-boot2.bin", "vk-boot2.bin"}}
53 {VK_IMAGE_TYPE_BOOT1, {"vk_b0-boot1.bin", "vk-boot1.bin"}},
54 {VK_IMAGE_TYPE_BOOT2, {"vk_b0-boot2.bin", "vk-boot2.bin"}}
58 {VK_IMAGE_TYPE_BOOT1, {"vp-boot1.bin", ""}},
59 {VK_IMAGE_TYPE_BOOT2, {"vp-boot2.bin", ""}}
110 "Number of in-band msg blks for short SGL.\n");
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/linux/drivers/net/ethernet/intel/fm10k/
H A Dfm10k_pci.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2019 Intel Corporation. */
15 * fm10k_pci_tbl - PCI Device ID Table
35 struct fm10k_intfc *interface = hw->back; in fm10k_read_pci_cfg_word()
38 if (FM10K_REMOVED(hw->hw_addr)) in fm10k_read_pci_cfg_word()
41 pci_read_config_word(interface->pdev, reg, &value); in fm10k_read_pci_cfg_word()
50 u32 __iomem *hw_addr = READ_ONCE(hw->hw_addr); in fm10k_read_reg()
58 struct fm10k_intfc *interface = hw->back; in fm10k_read_reg()
59 struct net_device *netdev = interface->netdev; in fm10k_read_reg()
61 hw->hw_addr = NULL; in fm10k_read_reg()
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/linux/drivers/scsi/
H A Dsense_codes.h1 /* SPDX-License-Identifier: GPL-2.0 */
4 * http://www.t10.org/lists/asc-num.txt [most recent: 20200817]
9 SENSE_CODE(0x0002, "End-of-partition/medium detected")
11 SENSE_CODE(0x0004, "Beginning-of-partition/medium detected")
12 SENSE_CODE(0x0005, "End-of-data detected")
38 SENSE_CODE(0x0300, "Peripheral device write fault")
51 SENSE_CODE(0x0409, "Logical unit not ready, self-test in progress")
58 SENSE_CODE(0x0411, "Logical unit not ready, notify (enable spinup) required")
87 SENSE_CODE(0x0801, "Logical unit communication time-out")
89 SENSE_CODE(0x0803, "Logical unit communication CRC error (Ultra-DMA/32)")
[all …]
/linux/drivers/scsi/mpt3sas/
H A Dmpt3sas_base.h6 * Copyright (C) 2012-2014 LSI Corporation
7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
78 #define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
100 #define MPT3SAS_TIMESYNC_MASK (0x7F) /* 0 - 6 bits */
183 pr_err("%s: " fmt, (ioc)->name, ##__VA_ARGS__)
185 pr_notice("%s: " fmt, (ioc)->name, ##__VA_ARGS__)
187 pr_warn("%s: " fmt, (ioc)->name, ##__VA_ARGS__)
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/linux/arch/alpha/include/asm/
H A Dcore_t2.h1 /* SPDX-License-Identifier: GPL-2.0 */
14 * memory controller and PCI access for the SABLE-based systems.
27 /* GAMMA-SABLE is a SABLE with EV5-based CPUs */
87 /* T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
90 * +--------------+ 3 8000 0000
92 * +--------------+ 3 8100 0000
94 * +--------------+ 3 8200 0000
96 * +--------------+ 3 8300 0000
98 * +--------------+ 3 8400 0000
100 * +--------------+ 3 8700 0000
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/linux/Documentation/admin-guide/
H A Dmd.rst5 ---------------------------------
16 md=<md device no.>,<raid level>,<chunk size factor>,<fault level>,dev0,dev1,...,devn
49 -1 linear mode
58 (raid-0 and raid-1 only)
62 ``fault level``
78 --------------------------------------
87 that all auto-detected arrays are assembled as partitionable.
90 -------------------------------------------
102 mdadm --assemble --force ....
112 md-mod.start_dirty_degraded=1
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/linux/Documentation/driver-api/usb/
H A Dpersist.rst1 .. _usb-persist:
14 bus must continue to supply suspend current (around 1-5 mA). This
16 detect connect-change events (devices being plugged in or unplugged).
38 Unfortunately problems _can_ arise, particularly with mass-storage
41 filesystem on the device, you're out of luck -- everything in that
53 entirely the BIOS's fault, but that doesn't do _you_ any good unless
57 suspend-to-RAM. On almost all systems, no suspend current is
58 available during hibernation (also known as swsusp or suspend-to-disk).
59 You can check the kernel log after resuming to see if either of these
65 suspended -- but it will crash as soon as it wakes up, which isn't
[all …]

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