| /linux/Documentation/trace/ |
| A 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*.
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.
121 - osnoise:nmi_noise: noise from NMI, including the duration.
122 - osnoise:irq_noise: noise from an IRQ, including the duration.
123 - osnoise:softirq_noise: noise from a SoftIRQ, including the
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| /linux/drivers/media/dvb-frontends/ |
| A 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()
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()
576 state->snr = calculate_snr(noise, c); in lgdt3303_read_snr()
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| A 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/drivers/staging/rtl8723bs/hal/ |
| A D | odm_NoiseMonitor.c | 106 pDM_Odm->noise_level.noise[RF_PATH_A] = -110 + reg_c50 + noise_data.sum[RF_PATH_A]; in odm_InbandNoise_Monitor_NSeries()
107 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[RF_PATH_A]; in odm_InbandNoise_Monitor_NSeries()
112 pDM_Odm->noise_level.noise[RF_PATH_B] = -110 + reg_c58 + noise_data.sum[RF_PATH_B]; in odm_InbandNoise_Monitor_NSeries()
113 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[RF_PATH_B]; in odm_InbandNoise_Monitor_NSeries()
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| A D | odm_NoiseMonitor.h | 28 s8 noise[MAX_RF_PATH]; member
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| /linux/drivers/net/wireless/ath/ |
| A D | spectral_common.h | 56 s8 noise; member
100 __be16 noise; member
124 __be32 noise; member
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| /linux/kernel/trace/ |
| A D | trace_osnoise.c | 291 u64 noise; /* noise */ member
484 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()
1386 if (noise > stop_in) in run_osnoise()
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| /linux/tools/testing/selftests/bpf/progs/ |
| A D | tailcall_bpf2bpf4.c | 20 int noise = 0; variable
33 if (noise) in subprog_tail_2()
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| /linux/Documentation/ABI/testing/ |
| A D | sysfs-bus-iio-temperature-max31865 | 17 Notch frequency in Hz for a noise rejection filter. Used i.e for
18 line noise rejection.
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| /linux/drivers/media/pci/cx88/ |
| A 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/Documentation/sound/soc/ |
| A 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/Documentation/userspace-api/media/dvb/ |
| A 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/Documentation/devicetree/bindings/input/touchscreen/ |
| A 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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| A 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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| A D | hycon,hy46xx.yaml | 64 hycon,noise-filter-enable:
66 description: Allows enabling power noise filter.
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| A 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/Documentation/devicetree/bindings/iio/proximity/ |
| A 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/drivers/staging/wlan-ng/ |
| A 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/Documentation/devicetree/bindings/iio/accel/ |
| A 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/drivers/net/wireless/intersil/orinoco/ |
| A 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/drivers/net/wireless/ath/ath9k/ |
| A 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/drivers/net/wireless/realtek/rtl818x/rtl8187/ |
| A D | rtl8187.h | 46 u8 noise; member
136 u8 noise; member
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| /linux/Documentation/sound/designs/ |
| A 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/fs/jffs2/ |
| A D | scan.c | 27 #define noisy_printk(noise, fmt, ...) \ argument
29 if (*(noise)) { \
31 (*(noise))--; \
32 if (!(*(noise))) \
450 int noise = 0; in jffs2_scan_eraseblock() local
608 noise = 10; in jffs2_scan_eraseblock()
747 noisy_printk(&noise, "%s(): Magic bitmask 0x%04x not found at 0x%08x: 0x%04x instead\n", in jffs2_scan_eraseblock()
763 …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/drivers/net/wireless/intersil/hostap/ |
| A D | hostap_80211_rx.c | 31 name, rx_stats->signal, rx_stats->noise, rx_stats->rate, in hostap_dump_rx_80211()
149 LWNG_SETVAL(noise, 7, 0, 4, rx_stats->noise); in prism2_rx_80211()
169 hdr->ssi_noise = htonl(rx_stats->noise); in prism2_rx_80211()
189 hdr->dbm_antnoise = rx_stats->noise; in prism2_rx_80211()
766 wstats.noise = rx_stats->noise; in hostap_80211_rx()
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