/linux/Documentation/sound/designs/ |
H A D | timestamping.rst | 7 - Trigger_tstamp is the system time snapshot taken when the .trigger 19 The difference (tstamp - trigger_tstamp) defines the elapsed time. 26 The use of these different pointers and time information depends on 30 - ``delay`` reports the time it will take to hear a new sample after all 34 along with a snapshot of system time. Applications can select from 42 of time as measured by different components of audio hardware. In 47 --------------------------------------------------------------> time 51 time time time time time 58 The analog time is taken at the last stage of the playback, as close 61 The link time is taken at the output of the SoC/chipset as the samples [all …]
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/linux/tools/perf/scripts/python/ |
H A D | stat-cpi.py | 10 def get_key(time, event, cpu, thread): argument 11 return "%d-%s-%d-%d" % (time, event, cpu, thread) 13 def store_key(time, cpu, thread): argument 14 if (time not in times): 15 times.append(time) 23 def store(time, event, cpu, thread, val, ena, run): argument 24 #print("event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" % 25 # (event, cpu, thread, time, val, ena, run)) 27 store_key(time, cpu, thread) 28 key = get_key(time, event, cpu, thread) [all …]
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/linux/Documentation/devicetree/bindings/rtc/ |
H A D | trivial-rtc.yaml | 23 # AB-RTCMC-32.768kHz-B5ZE-S3: Real Time Clock/Calendar Module with I2C Interface 25 # AB-RTCMC-32.768kHz-EOZ9: Real Time Clock/Calendar Module with I2C Interface 27 # ASPEED BMC ast2400 Real-time Clock 29 # ASPEED BMC ast2500 Real-time Clock 31 # ASPEED BMC ast2600 Real-time Clock 33 # Conexant Digicolor Real Time Clock Controller 37 # Dallas DS1672 Real-time Clock 41 # SD2405AL Real-Time Clock 45 # I2C-BUS INTERFACE REAL TIME CLOCK MODULE 47 # I2C-BUS INTERFACE REAL TIME CLOCK MODULE [all …]
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/linux/include/linux/platform_data/ |
H A D | gpmc-omap.h | 15 /* bool type time settings */ 35 u32 cs_on; /* Assertion time */ 36 u32 cs_rd_off; /* Read deassertion time */ 37 u32 cs_wr_off; /* Write deassertion time */ 40 u32 adv_on; /* Assertion time */ 41 u32 adv_rd_off; /* Read deassertion time */ 42 u32 adv_wr_off; /* Write deassertion time */ 43 u32 adv_aad_mux_on; /* ADV assertion time for AAD */ 44 u32 adv_aad_mux_rd_off; /* ADV read deassertion time for AAD */ 45 u32 adv_aad_mux_wr_off; /* ADV write deassertion time for AAD */ [all …]
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/linux/drivers/rtc/ |
H A D | rtc-mc146818-lib.c | 34 * readout is unspecified. The maximum update time is ~2ms. Poll in mc146818_avoid_UIP() 81 pr_warn("Reading current time from RTC took around %li ms\n", in mc146818_avoid_UIP() 101 struct rtc_time *time; member 121 p->time->tm_sec = seconds; in mc146818_get_time_callback() 122 p->time->tm_min = CMOS_READ(RTC_MINUTES); in mc146818_get_time_callback() 123 p->time->tm_hour = CMOS_READ(RTC_HOURS); in mc146818_get_time_callback() 124 p->time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH); in mc146818_get_time_callback() 125 p->time->tm_mon = CMOS_READ(RTC_MONTH); in mc146818_get_time_callback() 126 p->time->tm_year = CMOS_READ(RTC_YEAR); in mc146818_get_time_callback() 143 * mc146818_get_time - Get the current time from the RTC [all …]
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H A D | rtc-wm8350.c | 3 * Real Time Clock driver for Wolfson Microelectronics WM8350 13 #include <linux/time.h> 29 * Read current time and date in RTC 38 * Read the time twice and compare. in wm8350_rtc_readtime() 39 * If time1 == time2, then time is valid else retry. in wm8350_rtc_readtime() 83 dev_err(dev, "timed out reading RTC time\n"); in wm8350_rtc_readtime() 88 * Set current time and date in RTC 93 u16 time[4]; in wm8350_rtc_settime() local 97 time[0] = tm->tm_sec; in wm8350_rtc_settime() 98 time[0] |= tm->tm_min << WM8350_RTC_MINS_SHIFT; in wm8350_rtc_settime() [all …]
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H A D | rtc-pcf50633.c | 51 u_int8_t time[PCF50633_TI_EXTENT]; member 64 rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]); in pcf2rtc_time() 65 rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]); in pcf2rtc_time() 66 rtc->tm_hour = bcd2bin(pcf->time[PCF50633_TI_HOUR]); in pcf2rtc_time() 67 rtc->tm_wday = bcd2bin(pcf->time[PCF50633_TI_WKDAY]); in pcf2rtc_time() 68 rtc->tm_mday = bcd2bin(pcf->time[PCF50633_TI_DAY]); in pcf2rtc_time() 69 rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]) - 1; in pcf2rtc_time() 70 rtc->tm_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100; in pcf2rtc_time() 75 pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec); in rtc2pcf_time() 76 pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min); in rtc2pcf_time() [all …]
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H A D | rtc-sd2405al.c | 3 * RTC driver for the SD2405AL Real-Time Clock 16 /* Real time clock registers */ 86 static int sd2405al_read_time(struct device *dev, struct rtc_time *time) in sd2405al_read_time() argument 97 time->tm_sec = bcd2bin(data[SD2405AL_REG_T_SEC] & 0x7F); in sd2405al_read_time() 98 time->tm_min = bcd2bin(data[SD2405AL_REG_T_MIN] & 0x7F); in sd2405al_read_time() 101 time->tm_hour = bcd2bin(data[SD2405AL_REG_T_HOUR] & 0x3F); in sd2405al_read_time() 104 time->tm_hour = bcd2bin(data[SD2405AL_REG_T_HOUR] in sd2405al_read_time() 107 time->tm_hour = bcd2bin(data[SD2405AL_REG_T_HOUR] in sd2405al_read_time() 110 time->tm_wday = bcd2bin(data[SD2405AL_REG_T_WEEK] & 0x07); in sd2405al_read_time() 111 time->tm_mday = bcd2bin(data[SD2405AL_REG_T_DAY] & 0x3F); in sd2405al_read_time() [all …]
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H A D | rtc-spear.c | 63 /* date reg equal to time reg, for debug only */ 192 * spear_rtc_read_time - set the time 194 * @tm: holds date and time 196 * This function read time and date. On success it will return 0 202 unsigned int time, date; in spear_rtc_read_time() local 208 time = readl(config->ioaddr + TIME_REG); in spear_rtc_read_time() 210 } while (time == readl(config->ioaddr + TIME_REG)); in spear_rtc_read_time() 211 tm->tm_sec = (time >> SECOND_SHIFT) & SECOND_MASK; in spear_rtc_read_time() 212 tm->tm_min = (time >> MINUTE_SHIFT) & MIN_MASK; in spear_rtc_read_time() 213 tm->tm_hour = (time >> HOUR_SHIFT) & HOUR_MASK; in spear_rtc_read_time() [all …]
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H A D | rtc-rk808.c | 21 /* RK808 has a shadowed register for saving a "frozen" RTC time. 22 * When user setting "GET_TIME" to 1, the time will save in this shadowed 23 * register. If set "READSEL" to 1, user read rtc time register, actually 24 * get the time of that moment. If we need the real time, clr this bit. 76 time64_t time = rtc_tm_to_time64(tm); in rockchip_to_gregorian() local 77 rtc_time64_to_tm(time + nov2dec_transitions(tm) * 86400, tm); in rockchip_to_gregorian() 83 time64_t time = rtc_tm_to_time64(tm); in gregorian_to_rockchip() local 84 rtc_time64_to_tm(time - extra_days * 86400, tm); in gregorian_to_rockchip() 91 rtc_time64_to_tm(time - (extra_days - 1) * 86400, tm); in gregorian_to_rockchip() 95 /* Read current time and date in RTC */ [all …]
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/linux/lib/ |
H A D | find_bit_benchmark.c | 39 ktime_t time; in test_find_first_bit() local 41 time = ktime_get(); in test_find_first_bit() 46 time = ktime_get() - time; in test_find_first_bit() 47 pr_err("find_first_bit: %18llu ns, %6ld iterations\n", time, cnt); in test_find_first_bit() 56 ktime_t time; in test_find_first_and_bit() local 60 time = ktime_get(); in test_find_first_and_bit() 65 time = ktime_get() - time; in test_find_first_and_bit() 66 pr_err("find_first_and_bit: %18llu ns, %6ld iterations\n", time, cnt); in test_find_first_and_bit() 74 ktime_t time; in test_find_next_bit() local 76 time = ktime_get(); in test_find_next_bit() [all …]
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/linux/sound/core/seq/ |
H A D | seq_prioq.c | 7 #include <linux/time.h> 91 return (snd_seq_compare_tick_time(&a->time.tick, &b->time.tick)); in compare_timestamp() 93 /* compare real time */ in compare_timestamp() 94 return (snd_seq_compare_real_time(&a->time.time, &b->time.time)); in compare_timestamp() 108 if (a->time.tick > b->time.tick) in compare_timestamp_rel() 110 else if (a->time.tick == b->time.tick) in compare_timestamp_rel() 115 /* compare real time */ in compare_timestamp_rel() 116 if (a->time.time.tv_sec > b->time.time.tv_sec) in compare_timestamp_rel() 118 else if (a->time.time.tv_sec == b->time.time.tv_sec) { in compare_timestamp_rel() 119 if (a->time.time.tv_nsec > b->time.time.tv_nsec) in compare_timestamp_rel() [all …]
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/linux/Documentation/scheduler/ |
H A D | sched-rt-group.rst | 2 Real-Time group scheduling 28 resolution, or the time it takes to handle the budget refresh itself. 33 are real-time processes). 42 Real-time scheduling is all about determinism, a group has to be able to rely on 43 the amount of bandwidth (eg. CPU time) being constant. In order to schedule 44 multiple groups of real-time tasks, each group must be assigned a fixed portion 45 of the CPU time available. Without a minimum guarantee a real-time group can 52 CPU time is divided by means of specifying how much time can be spent running 53 in a given period. We allocate this "run time" for each real-time group which 54 the other real-time groups will not be permitted to use. [all …]
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/linux/include/linux/iio/ |
H A D | iio-gts-helper.h | 2 /* gain-time-scale conversion helpers for IIO light sensors 32 * struct iio_itime_sel_mul - integration time description 37 * integration time and amplification as well as corresponding selector 42 * 200 mS => 4 and 400 mS => 8 assuming the impact of integration time would be 44 * the data collection time caused value 2X etc. 46 * @time_us: Integration time in microseconds. Time values must be positive, 48 * @sel: Selector (usually register value) used to indicate this time 50 * @mul: Multiplication to the values caused by this time. 86 iio_gts_find_itime_by_time(struct iio_gts *gts, int time) in iio_gts_find_itime_by_time() argument 143 iio_gts_find_sel_by_int_time(struct iio_gts * gts,int time) iio_gts_find_sel_by_int_time() argument [all...] |
/linux/scripts/ |
H A D | show_delta | 5 # time data, and format with time deltas. 19 have time data prefixed because the CONFIG_PRINTK_TIME option is set, or 20 the kernel command line option "time" is specified. When run with no 21 options, the time information is converted to show the time delta between 23 are relative to a single (base) point in time. 27 -b <base> Specify a base for time references. 31 line) is used as the time reference. 50 time = string.atof(time_str) 52 #print "time=", time 53 return (time, rest) [all …]
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/linux/arch/um/kernel/ |
H A D | time.c | 23 #include <linux/time-internal.h> 64 panic("time-travel: time goes backwards %lld -> %lld\n", in time_travel_set_time() 85 printk(KERN_INFO "time-travel: received broadcast 0x%llx\n", bc_message); in _time_travel_print_bc_msg() 149 msg->time & UM_TIMETRAVEL_START_ACK_ID); in time_travel_handle_message() 158 panic("time-travel external link is broken\n"); in time_travel_handle_message() 160 panic("invalid time-travel message - %d bytes\n", ret); in time_travel_handle_message() 164 WARN_ONCE(1, "time-travel: unexpected message %lld\n", in time_travel_handle_message() 170 time_travel_set_time(msg->time); in time_travel_handle_message() 184 _time_travel_ext_free_until = msg->time; in time_travel_handle_message() 187 bc_message = msg->time; in time_travel_handle_message() [all …]
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/linux/drivers/iio/ |
H A D | industrialio-gts-helper.c | 2 /* gain-time-scale conversion helpers for IIO light sensors 45 * gain_get_scale_fraction - get the gain or time based on scale and known one 50 * @scale: Linearized scale to compute the gain/time for. 51 * @known: Either integration time or gain depending on which one is known 52 * @unknown: Pointer to variable where the computed gain/time is stored 55 * Compute either gain or time based on scale and either the gain or time 115 * @gts: Gain time scale descriptor 121 * generated by HW-gain or integration time. It is up to caller to decide what 122 * part of the total gain is due to integration time and what due to HW-gain. 141 * @gts: Gain time scale descriptor [all …]
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/linux/include/uapi/linux/ |
H A D | um_timetravel.h | 10 * struct um_timetravel_msg - UM time travel message 37 * @time: time in nanoseconds 39 __u64 time; member 63 * enum um_timetravel_start_ack - ack-time mask for start message 78 * this usually doesn't carry any data in the 'time' field 86 * @UM_TIMETRAVEL_START: initialize the connection, the time 93 * @UM_TIMETRAVEL_REQUEST: request to run at the given time 101 * interrupts); the time field is ignored. The calendar must process 109 * @UM_TIMETRAVEL_GET: return the current time from the calendar in the 110 * ACK message, the time in the request message is ignored [all …]
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/linux/Documentation/fb/ |
H A D | viafb.modes | 21 # Active Time 25.422 us 15.253 ms 23 # Blank Time 6.356 us 1.430 ms 46 # Active Time 20.317 us 12.800 ms 48 # Blank Time 6.349 us 0.533 ms 67 # Active Time 17.778 us 11.093 ms 69 # Blank Time 5.333 us 0.670 ms 88 # Active Time 14.827 us 9.430 ms 90 # Blank Time 4.819 us 0.570 ms 109 # Active Time 12.212 us 7.767 ms 111 # Blank Time 3.969 us 0.566 ms [all …]
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/linux/drivers/net/wireless/intel/iwlwifi/mvm/ |
H A D | time-event.h | 14 * DOC: Time Events - what is it? 16 * Time Events are a fw feature that allows the driver to control the presence 18 * concurrently, the fw may choose to jump to another channel at any time. 19 * In order to make sure that the fw is on a specific channel at a certain time 20 * and for a certain duration, the driver needs to issue a time event. 22 * The simplest example is for BSS association. The driver issues a time event, 32 * time and for a certain duration, it sends a Time Event. The flow against the 42 * What is the start time of the event? 43 * Is there an end-time for the event? 53 * In order to simplify the use of time events to the rest of the driver, [all …]
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/linux/tools/testing/selftests/tc-testing/tc-tests/actions/ |
H A D | gate.json | 31 "name": "Add gate action with base-time", 47 …"cmdUnderTest": "$TC action add action gate base-time 200000000000ns sched-entry close 100000000ns… 50 "matchPattern": "action order [0-9]*: .*base-time 200s.*index 10 ref", 58 "name": "Add gate action with cycle-time", 74 …"cmdUnderTest": "$TC action add action gate cycle-time 200000000000ns sched-entry close 100000000n… 77 "matchPattern": "action order [0-9]*: .*cycle-time 200s.*index 1000 ref", 85 "name": "Add gate action with cycle-time-ext", 101 …"cmdUnderTest": "$TC action add action gate cycle-time-ext 20000000000ns sched-entry close 1000000… 104 "matchPattern": "action order [0-9]*: .*cycle-time-ext 20s.*index 1000 ref", 112 "name": "Replace gate base-time action", [all …]
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/linux/drivers/gpu/drm/nouveau/nvkm/core/ |
H A D | subdev.c | 58 s64 time; in nvkm_subdev_fini() local 61 time = ktime_to_us(ktime_get()); in nvkm_subdev_fini() 75 time = ktime_to_us(ktime_get()) - time; in nvkm_subdev_fini() 76 nvkm_trace(subdev, "%s completed in %lldus\n", action, time); in nvkm_subdev_fini() 83 s64 time; in nvkm_subdev_preinit() local 86 time = ktime_to_us(ktime_get()); in nvkm_subdev_preinit() 96 time = ktime_to_us(ktime_get()) - time; in nvkm_subdev_preinit() 97 nvkm_trace(subdev, "preinit completed in %lldus\n", time); in nvkm_subdev_preinit() 104 s64 time; in nvkm_subdev_oneinit_() local 110 nvkm_trace(subdev, "one-time init running...\n"); in nvkm_subdev_oneinit_() [all …]
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/linux/Documentation/devicetree/bindings/memory-controllers/ |
H A D | ti,gpmc-child.yaml | 30 description: Assertion time 34 description: Read deassertion time 38 description: Write deassertion time 43 description: Assertion time 47 description: Read deassertion time 51 description: Write deassertion time 55 description: Assertion time for AAD 59 description: Read deassertion time for AAD 63 description: Write deassertion time for AAD 68 description: Assertion time [all …]
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/linux/tools/perf/tests/shell/ |
H A D | daemon.sh | 173 [session-time] 197 # pid:time:-e task-clock:base/time:base/time/output:base/time/control:base/time/ack:0 200 check_line_other "${line}" time "-e task-clock -m 1 sleep 10" ${base}/session-time \ 201 ${base}/session-time/output ${base}/session-time/control \ 202 ${base}/session-time/ack "0" 228 [session-time] 238 # pid:time:-e task-clock:base/time:base/time/output:base/time/control:base/time/ack:0 241 check_line_other "${line}" time "-e task-clock -m 1 sleep 10" ${base}/session-time \ 242 ${base}/session-time/output ${base}/session-time/control ${base}/session-time/ack "0" 255 [session-time] [all …]
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/linux/Documentation/admin-guide/pm/ |
H A D | cpuidle.rst | 8 CPU Idle Time Management 27 CPU idle time management is an energy-efficiency feature concerned about using 33 CPU idle time management operates on CPUs as seen by the *CPU scheduler* (that 43 program) at a time, it is a CPU. In that case, if the hardware is asked to 47 least one program at a time. The cores need not be entirely independent of each 48 other (for example, they may share caches), but still most of the time they 51 time. The entire cores are CPUs in that case and if the hardware is asked to 62 program in the same time frame (that is, each core may be able to fetch 63 instructions from multiple locations in memory and execute them in the same time 69 time management perspective and if the processor is asked to enter an idle state [all …]
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