| /linux-6.1.9/Documentation/trace/ |
| D | osnoise-tracer.rst | 8 NMIs, IRQs, SoftIRQs, and any other system thread can cause noise to the
9 system. Moreover, hardware-related jobs can also cause noise, for example,
13 source of noise: *hardware noise*.
36 events. When a noise happens without any interference from the operating
37 system level, the hardware noise counter increases, pointing to a
38 hardware-related noise. In this way, osnoise can account for any
40 prints the sum of all noise, the max single noise, the percentage of CPU
41 available for the thread, and the counters for the noise sources.
82 - The NOISE IN US reports the sum of noise in microseconds observed
86 - The MAX SINGLE NOISE IN US reports the maximum single noise observed
[all …]
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| /linux-6.1.9/Documentation/tools/rtla/ |
| D | rtla-osnoise.rst | 5 Measure the operating system noise
20 a summary of the noise of the operating system, including the counters of
22 for each noise via the **osnoise:** tracepoints. The **rtla osnoise top**
24 The **rtla osnoise hist** mode displays information about the noise using
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| /linux-6.1.9/drivers/media/dvb-frontends/ |
| D | lgdt330x.c | 496 u32 noise; /* noise value */ in lgdt3302_read_snr() local
505 noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2]; in lgdt3302_read_snr()
510 noise = ((buf[0] & 7 << 3) << 13) | (buf[3] << 8) | buf[4]; in lgdt3302_read_snr()
517 noise = ((buf[0] & 3) << 8) | buf[1]; in lgdt3302_read_snr()
531 state->snr = calculate_snr(noise, c); in lgdt3302_read_snr()
533 dprintk(state, "noise = 0x%08x, snr = %d.%02d dB\n", noise, in lgdt3302_read_snr()
543 u32 noise; /* noise value */ in lgdt3303_read_snr() local
552 noise = ((buf[0] & 0x78) << 13) | (buf[1] << 8) | buf[2]; in lgdt3303_read_snr()
557 noise = ((buf[0] & 7) << 16) | (buf[3] << 8) | buf[4]; in lgdt3303_read_snr()
564 noise = (buf[0] << 8) | buf[1]; in lgdt3303_read_snr()
[all …]
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| D | or51132.c | 461 int noise, reg; in or51132_read_snr() local
467 noise = or51132_readreg(state, 0x02); in or51132_read_snr()
468 if (noise < 0) { in or51132_read_snr()
472 dprintk("read_snr noise (%d)\n", noise); in or51132_read_snr()
501 state->snr = calculate_snr(noise, c) - usK; in or51132_read_snr()
504 dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise, in or51132_read_snr()
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| /linux-6.1.9/drivers/net/wireless/ath/ |
| D | spectral_common.h | 56 s8 noise; member
100 __be16 noise; member
124 __be32 noise; member
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| /linux-6.1.9/tools/testing/selftests/bpf/progs/ |
| D | tailcall_bpf2bpf4.c | 20 int noise = 0; variable
33 if (noise) in subprog_tail_2()
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| /linux-6.1.9/kernel/trace/ |
| D | trace_osnoise.c | 289 u64 noise; /* noise */ member
482 entry->noise = sample->noise; in __trace_osnoise_sample()
1294 s64 noise = 0, max_noise = 0; in run_osnoise() local
1347 noise = time_sub(sample, last_sample); in run_osnoise()
1352 if (noise < 0) { in run_osnoise()
1372 if (noise >= threshold) { in run_osnoise()
1375 if (noise > max_noise) in run_osnoise()
1376 max_noise = noise; in run_osnoise()
1381 sum_noise += noise; in run_osnoise()
1383 trace_sample_threshold(last_sample, noise, interference); in run_osnoise()
[all …]
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| /linux-6.1.9/Documentation/userspace-api/media/dvb/ |
| D | fe-read-snr.rst | 31 The signal-to-noise ratio is stored into \*snr.
36 This ioctl call returns the signal-to-noise ratio for the signal
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| /linux-6.1.9/Documentation/sound/soc/ |
| D | pops-clicks.rst | 8 powered up and causes a popping noise on the speakers).
50 An unwanted zipper noise can occur within the audio playback or capture stream
51 when a volume control is changed near its maximum gain value. The zipper noise
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| /linux-6.1.9/drivers/media/pci/cx88/ |
| D | cx88-dsp.c | 159 s32 carrier, stereo, dual, noise; in detect_a2_a2m_eiaj() local
189 noise = noise_magnitude(x, N, FREQ_NOISE_START, FREQ_NOISE_END); in detect_a2_a2m_eiaj()
193 carrier, stereo, dual, noise); in detect_a2_a2m_eiaj()
216 (noise < 10) && in detect_a2_a2m_eiaj()
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| /linux-6.1.9/Documentation/devicetree/bindings/input/touchscreen/ |
| D | touchscreen.yaml | 41 description: horizontal noise value of the absolute input device (in pixels)
45 description: vertical noise value of the absolute input device (in pixels)
49 description: pressure noise value of the absolute input device (arbitrary
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| D | tsc2007.txt | 16 If set, it will permit noise in the data up to +- the value given to the fuzz
17 parameter, that is used to filter noise from the event stream.
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| D | hycon,hy46xx.yaml | 64 hycon,noise-filter-enable:
66 description: Allows enabling power noise filter.
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| D | brcm,iproc-touchscreen.txt | 55 - touchscreen-fuzz-x: horizontal noise value of the absolute input
57 - touchscreen-fuzz-y: vertical noise value of the absolute input
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| /linux-6.1.9/Documentation/devicetree/bindings/iio/proximity/ |
| D | ams,as3935.yaml | 42 Set the noise and watchdog threshold register on startup. This will
43 need to set according to the noise from the MCU board, and possibly
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| /linux-6.1.9/Documentation/devicetree/bindings/iio/accel/ |
| D | adi,adxl355.yaml | 7 title: Analog Devices ADXL355 3-Axis, Low noise MEMS Accelerometer
13 Analog Devices ADXL355 3-Axis, Low noise MEMS Accelerometer that supports
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| /linux-6.1.9/drivers/staging/wlan-ng/ |
| D | p80211conv.c | 245 wlandev->spy_stat[i].noise = rxmeta->noise; in orinoco_spy_gather()
248 rxmeta->noise) ? (rxmeta->signal - in orinoco_spy_gather()
249 rxmeta->noise) : 0; in orinoco_spy_gather()
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| /linux-6.1.9/drivers/net/wireless/intersil/orinoco/ |
| D | hermes.h | 263 __le16 noise; /* Noise level */ member
279 __le16 noise; /* Noise level */ member
293 __le16 noise; /* Noise level */ member
320 u8 noise; member
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| /linux-6.1.9/drivers/net/wireless/ath/ath9k/ |
| D | calib.c | 75 s8 noise = ATH_DEFAULT_NOISE_FLOOR; in ath9k_hw_getchan_noise() local
81 noise += delta; in ath9k_hw_getchan_noise()
83 return noise; in ath9k_hw_getchan_noise()
438 ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor); in ath9k_hw_getnf()
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| /linux-6.1.9/drivers/net/wireless/realtek/rtl818x/rtl8187/ |
| D | rtl8187.h | 46 u8 noise; member
136 u8 noise; member
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| /linux-6.1.9/Documentation/sound/designs/ |
| D | powersave.rst | 34 Note that you might hear click noise/pop when changing the power
42 consumption, but might result in longer wake-up time and click noise.
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| /linux-6.1.9/drivers/net/wireguard/ |
| D | Makefile | 4 wireguard-y += noise.o
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| /linux-6.1.9/scripts/ |
| D | spdxexclude | 6 # create lots of noise for no value
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| /linux-6.1.9/fs/jffs2/ |
| D | scan.c | 27 #define noisy_printk(noise, fmt, ...) \ argument
29 if (*(noise)) { \
31 (*(noise))--; \
32 if (!(*(noise))) \
452 int noise = 0; in jffs2_scan_eraseblock() local
610 noise = 10; in jffs2_scan_eraseblock()
749 noisy_printk(&noise, "%s(): Magic bitmask 0x%04x not found at 0x%08x: 0x%04x instead\n", in jffs2_scan_eraseblock()
765 …noisy_printk(&noise, "%s(): Node at 0x%08x {0x%04x, 0x%04x, 0x%08x) has invalid CRC 0x%08x (calcul… in jffs2_scan_eraseblock()
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| /linux-6.1.9/Documentation/ABI/testing/ |
| D | sysfs-bus-iio-proximity-as3935 | 14 When 1 the noise level is over the trip level and not reporting
|