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/linux/drivers/memory/
H A Dda8xx-ddrctl.c72 const struct da8xx_ddrctl_config_knob *knob; in da8xx_ddrctl_match_knob() local
76 knob = &da8xx_ddrctl_knobs[i]; in da8xx_ddrctl_match_knob()
78 if (strcmp(knob->name, setting->name) == 0) in da8xx_ddrctl_match_knob()
79 return knob; in da8xx_ddrctl_match_knob()
102 const struct da8xx_ddrctl_config_knob *knob; in da8xx_ddrctl_probe() local
124 knob = da8xx_ddrctl_match_knob(setting); in da8xx_ddrctl_probe()
125 if (!knob) { in da8xx_ddrctl_probe()
131 if (knob->reg + sizeof(u32) > resource_size(res)) { in da8xx_ddrctl_probe()
134 knob->name); in da8xx_ddrctl_probe()
138 reg = readl(ddrctl + knob->reg); in da8xx_ddrctl_probe()
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/linux/fs/ubifs/
H A Ddebug.h62 * @dfs_dump_lprops: "dump lprops" debugfs knob
63 * @dfs_dump_budg: "dump budgeting information" debugfs knob
64 * @dfs_dump_tnc: "dump TNC" debugfs knob
65 * @dfs_chk_gen: debugfs knob to enable UBIFS general extra checks
66 * @dfs_chk_index: debugfs knob to enable UBIFS index extra checks
67 * @dfs_chk_orph: debugfs knob to enable UBIFS orphans extra checks
68 * @dfs_chk_lprops: debugfs knob to enable UBIFS LEP properties extra checks
69 * @dfs_chk_fs: debugfs knob to enable UBIFS contents extra checks
70 * @dfs_tst_rcvry: debugfs knob to enable UBIFS recovery testing
71 * @dfs_ro_error: debugfs knob to switch UBIFS to R/O mode (different to
/linux/fs/xfs/libxfs/
H A Dxfs_errortag.h16 * defined error injection knob.
86 * 2. The name of the sysfs knob; and
87 * 3. The default value for the knob.
/linux/Documentation/admin-guide/pm/
H A Dcpufreq.rst658 Rationale for Boost Control Knob
694 Legacy AMD ``cpb`` Knob
697 The AMD powernow-k8 scaling driver supports a ``sysfs`` knob very similar to
701 If present, that knob is located in every ``CPUFreq`` policy directory in
704 implementation, however, works on the system-wide basis and setting that knob
708 That knob is still supported on AMD processors that support its underlying
711 ``boost`` knob is present regardless. Thus it is always possible use the
712 ``boost`` knob instead of the ``cpb`` one which is highly recommended, as that
713 is more consistent with what all of the other systems do (and the ``cpb`` knob
716 The ``cpb`` knob is never present for any processors without the underlying
H A Dintel_pstate.rst121 Energy-Performance Preference (EPP) knob (if supported) or its
122 Energy-Performance Bias (EPB) knob (otherwise), which means that the processor's
138 Energy-Performance Preference (EPP) knob (if supported) or its
139 Energy-Performance Bias (EPB) knob (otherwise) to whatever value it was
672 Energy-Performance Preference (EPP) knob (if supported) or its
673 Energy-Performance Bias (EPB) knob. It is also possible to write a positive
/linux/Documentation/networking/
H A Dmptcp.rst63 Path managers are controlled by the ``net.mptcp.path_manager`` sysctl knob --
84 Packet schedulers are controlled by the ``net.mptcp.scheduler`` sysctl knob --
109 ``net.mptcp.enabled`` sysctl knob; see mptcp-sysctl.rst.
/linux/tools/testing/selftests/thermal/intel/power_floor/
H A Dpower_floor_test.c20 /* Disable feature via sysfs knob */ in power_floor_exit()
51 /* Enable feature via sysfs knob */ in main()
/linux/tools/perf/tests/
H A Dsw-clock.c76 const char *knob = "/proc/sys/kernel/perf_event_max_sample_rate"; in __test__sw_clock_freq() local
81 knob, (u64)attr.sample_freq); in __test__sw_clock_freq()
/linux/Documentation/admin-guide/
H A Dlockup-watchdogs.rst24 'hardlockup_panic', a compile time knob, "BOOTPARAM_HARDLOCKUP_PANIC",
62 As explained above, a kernel knob is provided that allows
/linux/tools/testing/selftests/thermal/intel/workload_hint/
H A Dworkload_hint_test.c31 /* Disable feature via sysfs knob */ in workload_hint_exit()
92 /* Enable feature via sysfs knob */ in main()
/linux/include/uapi/sound/
H A Dfirewire.h78 * operating hardware knob.
82 * @messages.message: The messages expressing hardware knob operation.
89 * The structure expresses message transmitted by Fireface 400 when operating hardware knob.
/linux/drivers/parisc/
H A Dpdc_stable.c536 * @knob: The PF_AUTOBOOT or PF_AUTOSEARCH flag
540 char *buf, int knob) in pdcs_auto_read() argument
552 out += sprintf(out, "%s\n", (pathentry->devpath.path.flags & knob) ? in pdcs_auto_read()
756 * @knob: The PF_AUTOBOOT or PF_AUTOSEARCH flag
764 size_t count, int knob) in pdcs_auto_write() argument
797 flags &= ~knob; in pdcs_auto_write()
799 flags |= knob; in pdcs_auto_write()
814 (knob & PF_AUTOBOOT) ? "autoboot" : "autosearch", in pdcs_auto_write()
815 (flags & knob) ? "On" : "Off"); in pdcs_auto_write()
/linux/drivers/mtd/ubi/
H A Dubi.h400 * @dfs_chk_gen: debugfs knob to enable UBI general extra checks
401 * @dfs_chk_io: debugfs knob to enable UBI I/O extra checks
402 * @dfs_chk_fastmap: debugfs knob to enable UBI fastmap extra checks
403 * @dfs_disable_bgt: debugfs knob to disable the background task
404 * @dfs_emulate_bitflips: debugfs knob to emulate bit-flips
405 * @dfs_emulate_io_failures: debugfs knob to emulate write/erase failures
406 * @dfs_emulate_power_cut: debugfs knob to emulate power cuts
407 * @dfs_power_cut_min: debugfs knob for minimum writes before power cut
408 * @dfs_power_cut_max: debugfs knob for maximum writes until power cut
/linux/Documentation/bpf/
H A Dprog_cgroup_sysctl.rst11 process inside that cgroup tries to read from or write to sysctl knob in proc.
61 Since sysctl knob is represented by a name and a value, sysctl specific BPF
/linux/sound/firewire/tascam/
H A Dtascam.h139 // knob: 0x14-0x1b
143 // fader and knob, bitmasks for button and sensing.
/linux/Documentation/ABI/obsolete/
H A Dsysfs-firmware-acpi8 enabling this knob is not safe and thus unsupported.
/linux/Documentation/trace/
H A Dkprobes.rst758 Provides a knob to globally and forcibly turn registered kprobes ON or OFF.
761 file. Note that this knob just disarms and arms all kprobes and doesn't
763 [DISABLED]) will be not enabled if you turn ON all kprobes by this knob.
772 a knob to globally and forcibly turn jump optimization (see section
778 Note that this knob *changes* the optimized state. This means that optimized
780 removed). If the knob is turned on, they will be optimized again.
/linux/Documentation/admin-guide/mm/
H A Dtranshuge.rst449 In addition to policies listed above, the sysfs knob
465 sysfs knob /sys/kernel/mm/transparent_hugepage/shmem_enabled and the knobs
470 The global knob has the same semantics as the ``huge=`` mount options
472 individually, and will only use the setting of the global knob when the
473 per-size knob is set to 'inherit'.
/linux/kernel/bpf/
H A DKconfig79 /proc/sys/kernel/unprivileged_bpf_disabled knob to 2. An admin can
/linux/tools/testing/selftests/timers/
H A Dchange_skew.c6 * NOTE: This is a meta-test which cranks the ADJ_FREQ knob and
/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dti,am3359-tsc.yaml54 so this does in fact function as a hardware knob for adjusting the amount
/linux/fs/xfs/
H A Dxfs_sysctl.h30 xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
/linux/fs/btrfs/
H A DKconfig109 - checksum offload mode - sysfs knob to affect when checksums are
/linux/Documentation/scheduler/
H A Dsched-util-clamp.rst450 Requests from tasks to go above this knob value will still succeed, but
471 Requests from tasks to go above this knob value will still succeed, but they
513 performance point, this sysctl knob allows tuning the best boost value to
518 to ensure they are performance and power aware. Ideally this knob should be set
/linux/mm/
H A Dksm.c771 * When merge_across_nodes knob is set to 1, there are only two rb-trees for
3526 unsigned long knob; in merge_across_nodes_store() local
3528 err = kstrtoul(buf, 10, &knob); in merge_across_nodes_store()
3531 if (knob > 1) in merge_across_nodes_store()
3536 if (ksm_merge_across_nodes != knob) { in merge_across_nodes_store()
3561 ksm_merge_across_nodes = knob; in merge_across_nodes_store()
3562 ksm_nr_node_ids = knob ? 1 : nr_node_ids; in merge_across_nodes_store()
3605 int knob; in max_page_sharing_store() local
3607 err = kstrtoint(buf, 10, &knob); in max_page_sharing_store()
3615 if (knob < 2) in max_page_sharing_store()
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