| /kernel/linux/linux-5.10/tools/perf/util/ |
| D | record.c | 1 // SPDX-License-Identifier: GPL-2.0
6 #include "parse-events.h"
11 #include <subcmd/parse-options.h>
16 #include "../perf-sys.h"
20 * evsel__config_leader_sampling() uses special rules for leader sampling.
26 struct evsel *leader = evsel->leader; in evsel__read_sampler()
30 if (evsel->leader == leader && evsel != evsel->leader) in evsel__read_sampler()
41 struct list_head *config_terms = &evsel->config_terms; in evsel__config_term_mask()
45 term_types |= 1 << term->type; in evsel__config_term_mask()
52 struct perf_event_attr *attr = &evsel->core.attr; in evsel__config_leader_sampling()
[all …]
|
| /kernel/linux/linux-5.10/Documentation/driver-api/media/drivers/ |
| D | cx88-devel.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 -------------------------------------------
13 .. code-block:: none
16 Digit 8: 31-28
19 Digit 7: 27-24 (0xc = 12 = b1100 )
24 Digits 6,5: 23-16
25 25-16: COMB_RANGE = 0x1f [default] (9 bits -> max 512)
27 Digit 4: 15-12
33 Digit 3: 11-8
39 Digit 2: 7-4
[all …]
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/iio/adc/ |
| D | adi,ad7606.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD7606 Simultaneous Sampling ADC
10 - Beniamin Bia <beniamin.bia@analog.com>
11 - Stefan Popa <stefan.popa@analog.com>
14 Analog Devices AD7606 Simultaneous Sampling ADC
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf
[all …]
|
| /kernel/linux/linux-5.10/sound/soc/codecs/ |
| D | ssm2602.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
81 #define APDIGI_DE_EMPHASIS 0x006 /* De-Emphasis Control …
105 /*Sampling Control (SSM2602_REG_SAMPLING_CTRL)*/
107 #define SRATE_BOS_RATE 0x002 /* Base Over-Sampling rate …
108 #define SRATE_SAMPLE_RATE 0x03C /* Clock setting condition (Sampling rate control)…
|
| /kernel/linux/linux-4.19/Documentation/media/v4l-drivers/ |
| D | cx88.rst | 10 --------------
13 - Works.
14 - Overlay isn't supported.
17 - Works. The TV standard detection is made by the driver, as the
18 hardware has bugs to auto-detect.
19 - audio data dma (i.e. recording without loopback cable to the
20 sound card) is supported via cx88-alsa.
23 - Works.
27 --------------------------------
30 cx88-cards.c. If the driver doesn't work well you likely need a new
[all …]
|
| /kernel/linux/linux-4.19/sound/soc/codecs/ |
| D | ssm2602.h | 25 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
95 #define APDIGI_DE_EMPHASIS 0x006 /* De-Emphasis Control …
119 /*Sampling Control (SSM2602_REG_SAMPLING_CTRL)*/
121 #define SRATE_BOS_RATE 0x002 /* Base Over-Sampling rate …
122 #define SRATE_SAMPLE_RATE 0x03C /* Clock setting condition (Sampling rate control)…
|
| /kernel/linux/linux-5.10/include/uapi/linux/ |
| D | gen_stats.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
19 #define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
22 * struct gnet_stats_basic - byte/packet throughput statistics
32 * struct gnet_stats_rate_est - rate estimator
42 * struct gnet_stats_rate_est64 - rate estimator
52 * struct gnet_stats_queue - queuing statistics
57 * @overlimits: number of enqueues over the limit
68 * struct gnet_estimator - rate estimator configuration
69 * @interval: sampling period
|
| /kernel/linux/linux-4.19/include/uapi/linux/ |
| D | gen_stats.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
17 #define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
20 * struct gnet_stats_basic - byte/packet throughput statistics
34 * struct gnet_stats_rate_est - rate estimator
44 * struct gnet_stats_rate_est64 - rate estimator
54 * struct gnet_stats_queue - queuing statistics
59 * @overlimits: number of enqueues over the limit
70 * struct gnet_estimator - rate estimator configuration
71 * @interval: sampling period
|
| /kernel/linux/linux-5.10/net/ipv4/ |
| D | tcp_bbr.c | 21 * +---> STARTUP ----+
24 * | DRAIN ----+
27 * +---> PROBE_BW ----+
30 * | +----+ |
32 * +---- PROBE_RTT <--+
37 * A long-lived BBR flow spends the vast majority of its time remaining
42 * it briefly enters PROBE_RTT to cut inflight to a minimum value to re-probe
43 * the path's two-way propagation delay (min_rtt). When exiting PROBE_RTT, if
48 * "BBR: Congestion-Based Congestion Control",
50 * Van Jacobson. ACM Queue, Vol. 14 No. 5, September-October 2016.
[all …]
|
| /kernel/linux/linux-4.19/net/ipv4/ |
| D | tcp_bbr.c | 21 * +---> STARTUP ----+
24 * | DRAIN ----+
27 * +---> PROBE_BW ----+
30 * | +----+ |
32 * +---- PROBE_RTT <--+
37 * A long-lived BBR flow spends the vast majority of its time remaining
42 * it briefly enters PROBE_RTT to cut inflight to a minimum value to re-probe
43 * the path's two-way propagation delay (min_rtt). When exiting PROBE_RTT, if
48 * "BBR: Congestion-Based Congestion Control",
50 * Van Jacobson. ACM Queue, Vol. 14 No. 5, September-October 2016.
[all …]
|
| /kernel/linux/linux-5.10/kernel/trace/ |
| D | trace_hwlat.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * trace_hwlat.c - A simple Hardware Latency detector.
20 * Although certain hardware-inducing latencies are necessary (for example,
22 * and remote management) they can wreak havoc upon any OS-level performance
23 * guarantees toward low-latency, especially when the OS is not even made
27 * sampling the built-in CPU timer, looking for discontiguous readings.
31 * environment requiring any kind of low-latency performance
34 * Copyright (C) 2008-2009 Jon Masters, Red Hat, Inc. <jcm@redhat.com>
35 * Copyright (C) 2013-2016 Steven Rostedt, Red Hat, Inc. <srostedt@redhat.com>
57 /* sampling thread*/
[all …]
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/sound/ |
| D | nvidia,tegra186-dspk.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/nvidia,tegra186-dspk.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 Density Modulation (PDM) transmitter that up-samples the input to
12 the desired sampling rate by interpolation and then converts the
13 over sampled Pulse Code Modulation (PCM) input to the desired 1-bit
17 - Jon Hunter <jonathanh@nvidia.com>
18 - Sameer Pujar <spujar@nvidia.com>
22 pattern: "^dspk@[0-9a-f]*$"
[all …]
|
| /kernel/linux/linux-4.19/Documentation/usb/ |
| D | gadget-testing.txt | 31 Function-specific configfs interface
32 ------------------------------------
39 The attribute is read-only.
45 ------------------------
60 Function-specific configfs interface
61 ------------------------------------
66 ifname - network device interface name associated with this
68 qmult - queue length multiplier for high and super speed
69 host_addr - MAC address of host's end of this
70 Ethernet over USB link
[all …]
|
| /kernel/linux/linux-5.10/drivers/cpufreq/ |
| D | cpufreq_governor.c | 1 // SPDX-License-Identifier: GPL-2.0-only
30 * store_sampling_rate - update sampling rate effective immediately if needed.
34 * original sampling_rate was 1 second and the requested new sampling rate is 10
37 * change the sampling rate too late; up to 1 second later. Thus, if we are
38 * reducing the sampling rate, we need to make the new value effective
41 * This must be called with dbs_data->mutex held, otherwise traversing
54 return -EINVAL; in store_sampling_rate()
56 dbs_data->sampling_rate = sampling_interval; in store_sampling_rate()
59 * We are operating under dbs_data->mutex and so the list and its in store_sampling_rate()
62 list_for_each_entry(policy_dbs, &attr_set->policy_list, list) { in store_sampling_rate()
[all …]
|
| /kernel/linux/linux-4.19/drivers/cpufreq/ |
| D | cpufreq_governor.c | 33 * store_sampling_rate - update sampling rate effective immediately if needed.
37 * original sampling_rate was 1 second and the requested new sampling rate is 10
40 * change the sampling rate too late; up to 1 second later. Thus, if we are
41 * reducing the sampling rate, we need to make the new value effective
44 * This must be called with dbs_data->mutex held, otherwise traversing
57 return -EINVAL; in store_sampling_rate()
59 dbs_data->sampling_rate = sampling_interval; in store_sampling_rate()
62 * We are operating under dbs_data->mutex and so the list and its in store_sampling_rate()
65 list_for_each_entry(policy_dbs, &attr_set->policy_list, list) { in store_sampling_rate()
66 mutex_lock(&policy_dbs->update_mutex); in store_sampling_rate()
[all …]
|
| /kernel/linux/linux-4.19/drivers/media/rc/ |
| D | mtk-cir.c | 22 #include <media/rc-core.h>
33 * Register to setting ok count whose unit based on hardware sampling period
68 /* Register to setting software sampling period */
70 /* Register to setting hardware sampling period */
106 * struct mtk_ir_data - This is the structure holding all differences among
113 * @hw_period: The value indicating the hardware sampling period
134 * struct mtk_ir - This is the main datasructure for holding the state
156 return ir->data->regs[MTK_CHKDATA_REG] + 4 * i; in mtk_chkdata_reg()
163 /* Period of raw software sampling in ns */ in mtk_chk_period()
165 clk_get_rate(ir->bus) / ir->data->div); in mtk_chk_period()
[all …]
|
| /kernel/linux/linux-5.10/drivers/iio/pressure/ |
| D | zpa2326.c | 1 // SPDX-License-Identifier: GPL-2.0-only
18 * ZPA2326 hardware supports 2 sampling mode: one shot and continuous.
20 * A complete one shot sampling cycle gets device out of low power mode,
22 * back to low power mode. It is meant for on demand sampling with optimal power
23 * saving at the cost of lower sampling rate and higher software overhead.
34 * - get device out of low power mode,
35 * - setup hardware sampling period,
36 * - at end of period, upon data ready interrupt: pop pressure samples out of
38 * - when no longer needed, stop sampling process by putting device into
44 * Note that hardware sampling frequency is taken into account only when
[all …]
|
| /kernel/linux/linux-4.19/drivers/iio/pressure/ |
| D | zpa2326.c | 26 * ZPA2326 hardware supports 2 sampling mode: one shot and continuous.
28 * A complete one shot sampling cycle gets device out of low power mode,
30 * back to low power mode. It is meant for on demand sampling with optimal power
31 * saving at the cost of lower sampling rate and higher software overhead.
42 * - get device out of low power mode,
43 * - setup hardware sampling period,
44 * - at end of period, upon data ready interrupt: pop pressure samples out of
46 * - when no longer needed, stop sampling process by putting device into
52 * Note that hardware sampling frequency is taken into account only when
53 * internal hardware trigger is attached as the highest sampling rate seems to
[all …]
|
| /kernel/linux/linux-5.10/drivers/media/rc/ |
| D | mtk-cir.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
13 #include <media/rc-core.h>
24 * Register to setting ok count whose unit based on hardware sampling period
59 /* Register to setting software sampling period */
61 /* Register to setting hardware sampling period */
97 * struct mtk_ir_data - This is the structure holding all differences among
104 * @hw_period: The value indicating the hardware sampling period
125 * struct mtk_ir - This is the main datasructure for holding the state
147 return ir->data->regs[MTK_CHKDATA_REG] + 4 * i; in mtk_chkdata_reg()
156 * unit of raw software sampling in mtk_chk_period()
[all …]
|
| /kernel/linux/linux-5.10/tools/perf/Documentation/ |
| D | perf-top.txt | 1 perf-top(1)
5 ----
6 perf-top - System profiling tool.
9 --------
11 'perf top' [-e <EVENT> | --event=EVENT] [<options>]
14 -----------
19 -------
20 -a::
21 --all-cpus::
22 System-wide collection. (default)
[all …]
|
| /kernel/linux/linux-4.19/sound/firewire/ |
| D | amdtp-stream.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
10 #include "packets-buffer.h"
13 * enum cip_flags - describes details of the streaming protocol
14 * @CIP_NONBLOCKING: In non-blocking mode, each packet contains
16 * for clock skew and left-over fractional samples. This should
21 * @CIP_EMPTY_WITH_TAG0: Only for in-stream. Empty in-packets have TAG0.
24 * @CIP_WRONG_DBS: Only for in-stream. The value of dbs is wrong in in-packets.
26 * @CIP_SKIP_DBC_ZERO_CHECK: Only for in-stream. Packets with zero in dbc is
28 * @CIP_EMPTY_HAS_WRONG_DBC: Only for in-stream. The value of dbc in empty
30 * @CIP_JUMBO_PAYLOAD: Only for in-stream. The number of data blocks in an
[all …]
|
| /kernel/linux/linux-4.19/sound/soc/sh/rcar/ |
| D | src.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // Renesas R-Car SRC support
28 u32 convert_rate; /* sampling rate convert */
34 #define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
35 #define rsnd_src_nr(priv) ((priv)->src_nr)
36 #define rsnd_src_sync_is_enabled(mod) (rsnd_mod_to_src(mod)->sen.val)
44 ((pos) = (struct rsnd_src *)(priv)->src + i); \
49 * image of SRC (Sampling Rate Converter)
51 * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
52 * 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
[all …]
|
| /kernel/linux/linux-5.10/Documentation/admin-guide/hw-vuln/ |
| D | special-register-buffer-data-sampling.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 SRBDS - Special Register Buffer Data Sampling
17 -------------------
18 Core models (desktop, mobile, Xeon-E3) that implement RDRAND and/or RDSEED may
47 ------------
52 CVE-2020-0543 SRBDS Special Register Buffer Data Sampling
56 ----------------
62 --------------------
68 During execution of the RDRAND, RDSEED, or EGETKEY instructions, off-core
83 legacy locked cache-line-split accesses.
[all …]
|
| /kernel/linux/linux-4.19/Documentation/admin-guide/hw-vuln/ |
| D | special-register-buffer-data-sampling.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 SRBDS - Special Register Buffer Data Sampling
17 --------------------
18 Core models (desktop, mobile, Xeon-E3) that implement RDRAND and/or RDSEED may
47 ------------
52 CVE-2020-0543 SRBDS Special Register Buffer Data Sampling
56 ----------------
62 -------------------
68 During execution of the RDRAND, RDSEED, or EGETKEY instructions, off-core
83 legacy locked cache-line-split accesses.
[all …]
|
| /kernel/linux/linux-4.19/Documentation/ |
| D | cpu-load.txt | 10 Linux 2.6.18.3-exp (linmac) 02/20/2007
12 avg-cpu: %user %nice %system %iowait %steal %idle
17 Here the system thinks that over the default sampling period the
34 -------
40 |--------------------------------------|
55 /* gcc -o hog smallhog.c */
72 while (!stop && --niters);
88 for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
91 n = tmp - (tmp / 3.0);
105 ----------
[all …]
|