| /openbmc/linux/Documentation/devicetree/bindings/thermal/ |
| H A D | nvidia,tegra124-soctherm.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/thermal/nvidia,tegra124-soctherm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
14 polled or interrupt-based thermal monitoring, CPU and GPU throttling based
21 - nvidia,tegra124-soctherm
22 - nvidia,tegra132-soctherm
23 - nvidia,tegra210-soctherm
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| /openbmc/qemu/qapi/ |
| H A D | migration.json | 1 # -*- Mode: Python -*-
28 # @normal-bytes: number of normal bytes sent (since 1.2)
30 # @dirty-pages-rate: number of pages dirtied by second by the guest
35 # @dirty-sync-count: number of times that dirty ram was synchronized
38 # @postcopy-requests: The number of page requests received from the
41 # @page-size: The number of bytes per page for the various page-based
44 # @multifd-bytes: The number of bytes sent through multifd (since 3.0)
46 # @pages-per-second: the number of memory pages transferred per second
49 # @precopy-bytes: The number of bytes sent in the pre-copy phase
52 # @downtime-bytes: The number of bytes sent while the guest is paused
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| H A D | block-core.json | 1 # -*- Mode: Python -*-
20 # @vm-state-size: size of the VM state
22 # @date-sec: UTC date of the snapshot in seconds
24 # @date-nsec: fractional part in nano seconds to be used with date-sec
26 # @vm-clock-sec: VM clock relative to boot in seconds
28 # @vm-clock-nsec: fractional part in nano seconds to be used with
29 # vm-clock-sec
32 # record/replay is enabled. Used for "time-traveling" to match
34 # counter may be obtained through @query-replay command (since
40 'data': { 'id': 'str', 'name': 'str', 'vm-state-size': 'int',
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| /openbmc/qemu/docs/ |
| H A D | throttle.txt | 7 later. See the COPYING file in the top-level directory.
10 ------------
17 it works internally. The implementation is in throttle.c.
21 ----------------------------------
25 write operations. This gives us a total of six different parameters.
27 I/O limits can be set using the throttling.* parameters of -drive, or
31 |-----------------------+-----------------------|
32 | -drive | block_set_io_throttle |
33 |-----------------------+-----------------------|
34 | throttling.iops-total | iops |
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| /openbmc/linux/kernel/sched/ |
| H A D | deadline.c | 1 // SPDX-License-Identifier: GPL-2.0
22 * Default limits for DL period; on the top end we guard against small util
27 static unsigned int sysctl_sched_dl_period_min = 100; /* 100 us */
72 return &rq->dl; in dl_rq_of_se()
77 return !RB_EMPTY_NODE(&dl_se->rb_node); in on_dl_rq()
83 return dl_se->pi_se; in pi_of()
107 return &cpu_rq(i)->rd->dl_bw; in dl_bw_of()
112 struct root_domain *rd = cpu_rq(i)->rd; in dl_bw_cpus()
118 if (cpumask_subset(rd->span, cpu_active_mask)) in dl_bw_cpus()
119 return cpumask_weight(rd->span); in dl_bw_cpus()
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| H A D | rt.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Real-Time Scheduling Class (mapped to the SCHED_FIFO and SCHED_RR
16 * period over which we measure -rt task CPU usage in us.
22 * part of the period that we allow rt tasks to run in us.
77 raw_spin_lock(&rt_b->rt_runtime_lock); in sched_rt_period_timer()
79 overrun = hrtimer_forward_now(timer, rt_b->rt_period); in sched_rt_period_timer()
83 raw_spin_unlock(&rt_b->rt_runtime_lock); in sched_rt_period_timer()
85 raw_spin_lock(&rt_b->rt_runtime_lock); in sched_rt_period_timer()
88 rt_b->rt_period_active = 0; in sched_rt_period_timer()
89 raw_spin_unlock(&rt_b->rt_runtime_lock); in sched_rt_period_timer()
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| H A D | fair.c | 1 // SPDX-License-Identifier: GPL-2.0
43 #include <linux/memory-tiers.h>
61 * The initial- and re-scaling of tunables is configurable
65 * SCHED_TUNABLESCALING_NONE - unscaled, always *1
66 * SCHED_TUNABLESCALING_LOG - scaled logarithmical, *1+ilog(ncpus)
67 * SCHED_TUNABLESCALING_LINEAR - scaled linear, *ncpus
74 * Minimal preemption granularity for CPU-bound tasks:
108 return -cpu; in arch_asym_cpu_priority()
129 * Amount of runtime to allocate from global (tg) to local (per-cfs_rq) pool
188 lw->weight += inc; in update_load_add()
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| /openbmc/linux/mm/ |
| H A D | page-writeback.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * mm/page-writeback.c
26 #include <linux/backing-dev.h>
54 #define DIRTY_POLL_THRESH (128 >> (PAGE_SHIFT - 10))
100 * The interval between `kupdate'-style writebacks
119 /* End of sysctl-exported parameters */
137 unsigned long wb_dirty; /* per-wb counterparts */
145 * Length of period for aging writeout fractions of bdis. This is an
146 * arbitrarily chosen number. The longer the period, the slower fractions will
155 .wb_completions = &(__wb)->completions
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| /openbmc/linux/drivers/scsi/aic7xxx/ |
| H A D | aic79xx_osm.c | 6 * --------------------------------------------------------------------------
7 * Copyright (c) 1994-2000 Justin T. Gibbs.
8 * Copyright (c) 1997-1999 Doug Ledford
9 * Copyright (c) 2000-2003 Adaptec Inc.
23 * 3. Neither the names of the above-listed copyright holders nor the names
76 * To change the default number of tagged transactions allowed per-device,
83 * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15
96 * The driver will throttle the number of commands dispatched to a
102 * depths. The driver will throttle back when the queue fulls occur and
110 * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
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| H A D | aic7xxx_osm.c | 26 * config file (!adp7771.cfg), the Adaptec AHA-2740A Series User's Guide,
29 * (adp7770.ovl), the Adaptec AHA-2740 Series Technical Reference Manual,
30 * the Adaptec AIC-7770 Data Book, the ANSI SCSI specification, the
31 * ANSI SCSI-2 specification (draft 10c), ...
33 * --------------------------------------------------------------------------
41 * --------------------------------------------------------------------------
42 * Copyright (c) 1994-2000 Justin T. Gibbs.
43 * Copyright (c) 2000-2001 Adaptec Inc.
57 * 3. Neither the names of the above-listed copyright holders nor the names
78 *---------------------------------------------------------------------------
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| /openbmc/linux/Documentation/admin-guide/thermal/ |
| H A D | intel_powerclamp.rst | 6 - Arjan van de Ven <arjan@linux.intel.com>
7 - Jacob Pan <jacob.jun.pan@linux.intel.com>
12 - Goals and Objectives
15 - Idle Injection
16 - Calibration
19 - Effectiveness and Limitations
20 - Power vs Performance
21 - Scalability
22 - Calibration
23 - Comparison with Alternative Techniques
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| /openbmc/linux/tools/include/uapi/linux/ |
| H A D | pkt_sched.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
12 with obsolete IPv6 values is not occasional :-). New IPv6 drafts
37 __u32 overlimits; /* Number of throttle events when this
51 ---------
119 #define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
130 * Priorities go from zero to (SKBPRIO_MAX_PRIORITY - 1).
149 __u8 priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
173 * command is received (just act as a pass-thru queue).
203 #define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
214 int perturb_period; /* Period of hash perturbation */
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| /openbmc/linux/include/uapi/linux/ |
| H A D | pkt_sched.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
13 with obsolete IPv6 values is not occasional :-). New IPv6 drafts
38 __u32 overlimits; /* Number of throttle events when this
52 ---------
120 #define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
131 * Priorities go from zero to (SKBPRIO_MAX_PRIORITY - 1).
150 __u8 priomap[TC_PRIO_MAX+1]; /* Map: logical priority -> PRIO band */
174 * command is received (just act as a pass-thru queue).
204 #define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
215 int perturb_period; /* Period of hash perturbation */
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| /openbmc/linux/drivers/thermal/tegra/ |
| H A D | soctherm.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2014 - 2018, NVIDIA CORPORATION. All rights reserved.
34 #include <dt-bindings/thermal/tegra124-soctherm.h>
197 #define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1))
200 (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1)))
203 #define THROT_DEPTH_DIVIDEND(depth) ((256 * (100 - (depth)) / 100) - 1)
205 /* gk20a nv_therm interface N:3 Mapping. Levels defined in tegra124-soctherm.h
212 #define THROT_LEVEL_TO_DEPTH(level) ((0x1 << (level)) - 1)
229 (ALARM_OFFSET * (throt - THROTTLE_OC1)))
232 (ALARM_OFFSET * (throt - THROTTLE_OC1)))
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| /openbmc/qemu/tests/qtest/ |
| H A D | migration-test.c | 4 * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
5 * based on the vhost-user-test.c that is:
9 * See the COPYING file in the top-level directory.
24 #include "ppc-util.h"
26 #include "migration-helpers.h"
27 #include "tests/migration/migration-test.h"
29 # include "tests/unit/crypto-tls-psk-helpers.h"
31 # include "tests/unit/crypto-tls-x509-helpers.h"
66 #define ANALYZE_SCRIPT "scripts/analyze-migration.py"
103 if (ufd == -1) { in ufd_version_check()
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| /openbmc/qemu/ui/ |
| H A D | cocoa.m | 31 #include "qemu/help-texts.h"
32 #include "qemu-main.h"
36 #include "ui/kbd-state.h"
39 #include "sysemu/runstate-action.h"
40 #include "sysemu/cpu-throttle.h"
42 #include "qapi/qapi-commands-block.h"
43 #include "qapi/qapi-commands-machine.h"
44 #include "qapi/qapi-commands-misc.h"
46 #include "qemu-version.h"
48 #include "qemu/main-loop.h"
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| /openbmc/linux/Documentation/RCU/ |
| H A D | RTFP.txt | 4 This document describes RCU-related publications, and is followed by
19 with short-lived threads, such as the K42 research operating system.
20 However, Linux has long-lived tasks, so more is needed.
23 serialization, which is an RCU-like mechanism that relies on the presence
27 that these overheads were not so expensive in the mid-80s. Nonetheless,
28 passive serialization appears to be the first deferred-destruction
30 has lapsed, so this approach may be used in non-GPL software, if desired.
34 In 1987, Rashid et al. described lazy TLB-flush [RichardRashid87a].
36 this paper helped inspire the update-side batching used in the later
38 a description of Argus that noted that use of out-of-date values can
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| /openbmc/linux/drivers/net/ethernet/intel/igb/ |
| H A D | igb.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2007 - 2018 Intel Corporation. */
18 #include <linux/i2c-algo-bit.h>
119 * PTHRESH - MAC will consider prefetch if it has fewer than this number of
122 * HTHRESH - MAC will only prefetch if there are at least this many descriptors
125 * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back
129 #define IGB_RX_PTHRESH ((hw->mac.type == e1000_i354) ? 12 : 8)
131 #define IGB_TX_PTHRESH ((hw->mac.type == e1000_i354) ? 20 : 8)
133 #define IGB_RX_WTHRESH ((hw->mac.type == e1000_82576 && \
134 (adapter->flags & IGB_FLAG_HAS_MSIX)) ? 1 : 4)
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| /openbmc/linux/kernel/rcu/ |
| H A D | tree.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Read-Copy Update mechanism for mutual exclusion (tree-based version)
14 * For detailed explanation of Read-Copy Update mechanism see -
67 #include "../time/tick-internal.h"
88 .gp_seq = (0UL - 300UL) << RCU_SEQ_CTR_SHIFT,
106 /* Control rcu_node-tree auto-balancing at boot time. */
125 * boot-time false positives from lockdep-RCU error checking. Finally, it
161 * real-time priority(enabling/disabling) is controlled by
167 /* Delay in jiffies for grace-period initialization delays, debug only. */
183 * This rcu parameter is runtime-read-only. It reflects
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| H A D | tree_nocb.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Read-Copy Update mechanism for mutual exclusion (tree-based version)
4 * Internal non-public definitions that provide either classic
21 return lockdep_is_held(&rdp->nocb_lock); in rcu_lockdep_is_held_nocb()
27 if (!rdp->nocb_cb_kthread || !rdp->nocb_gp_kthread) in rcu_current_is_nocb_kthread()
30 if (current == rdp->nocb_cb_kthread || current == rdp->nocb_gp_kthread) in rcu_current_is_nocb_kthread()
37 * Offload callback processing from the boot-time-specified set of CPUs
40 * a grace period to elapse, and invoke the callbacks. These kthreads
43 * invoke callbacks. Each GP kthread invokes its own CBs. The no-CBs CPUs
50 * adaptive-idle work, which would seriously reduce OS jitter on CPUs
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| /openbmc/linux/kernel/events/ |
| H A D | core.c | 1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
7 * Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
75 struct task_struct *p = tfc->p; in remote_function()
78 /* -EAGAIN */ in remote_function()
87 tfc->ret = -ESRCH; /* No such (running) process */ in remote_function()
92 tfc->ret = tfc->func(tfc->info); in remote_function()
96 * task_function_call - call a function on the cpu on which a task runs
106 * returns @func return value or -ESRCH or -ENXIO when the process isn't running
115 .ret = -EAGAIN, in task_function_call()
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| /openbmc/linux/drivers/net/usb/ |
| H A D | usbnet.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2000-2005 by David Brownell
5 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
10 * kinds of full and high speed networking devices: host-to-host cables,
34 /*-------------------------------------------------------------------------*/
48 #define RX_QLEN(dev) ((dev)->rx_qlen)
49 #define TX_QLEN(dev) ((dev)->tx_qlen)
54 /* throttle rx/tx briefly after some faults, so hub_wq might disconnect()
55 * us (it polls at HZ/4 usually) before we report too many false errors.
62 /*-------------------------------------------------------------------------*/
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| /openbmc/linux/block/ |
| H A D | blk-iocost.c | 1 /* SPDX-License-Identifier: GPL-2.0
17 * useless for the purpose of IO capacity distribution. While on-device
19 * non-queued rotational devices, this is no longer viable with modern
27 * implement a reasonable work-conserving proportional IO resource
37 * Currently, there's only one builtin cost model - linear. Each IO is
47 * device-specific coefficients.
54 * 2-1. Vtime Distribution
75 * against the device vtime - an IO which takes 10ms on the underlying
84 * 2-2. Vrate Adjustment
97 * To slow down, we lower the vrate - the rate at which the device vtime
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| /openbmc/linux/drivers/usb/fotg210/ |
| H A D | fotg210-hcd.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 /* Faraday FOTG210 EHCI-like driver
6 * Author: Yuan-Hsin Chen <yhchen@faraday-tech.com>
7 * Feng-Hsin Chiang <john453@faraday-tech.com>
8 * Po-Yu Chuang <ratbert.chuang@gmail.com>
10 * Most of code borrowed from the Linux-3.7 EHCI driver
29 #include <linux/dma-mapping.h>
49 #define FOTG210_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
50 #define FOTG210_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
52 #define FOTG210_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
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| /openbmc/linux/drivers/usb/host/ |
| H A D | oxu210hp-hcd.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 * This code is *strongly* based on EHCI-HCD code by David Brownell since
7 * the chip is a quasi-EHCI compatible.
25 #include <linux/dma-mapping.h>
82 #define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
83 #define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
85 #define EHCI_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
101 u32 hcs_params; /* HCSPARAMS - offset 0x4 */
110 u32 hcc_params; /* HCCPARAMS - offset 0x8 */
116 #define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */
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