| /openbmc/u-boot/arch/powerpc/lib/ |
| H A D | time.c | 19 ulong ticks; in usec2ticks() local
22 ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000; in usec2ticks()
24 ticks = ((usec / 10) * (get_tbclk() / 100000)); in usec2ticks()
27 return (ticks); in usec2ticks()
34 * microseconds to wait) into a number of time base ticks; then we
39 ulong ticks = usec2ticks (usec); in __udelay() local
40 wait_ticks (ticks); in __udelay()
45 unsigned long ticks2usec(unsigned long ticks) in ticks2usec() argument
49 /* usec = ticks * 1000000 / tbclk in ticks2usec()
50 * Multiplication would overflow at ~4.2e3 ticks, in ticks2usec()
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| /openbmc/u-boot/arch/arm/cpu/arm920t/ep93xx/ |
| H A D | timer.c | 23 #define TIMER_FREQ 508469 /* ticks / second */
28 unsigned long long ticks; member
34 unsigned long long ticks = (unsigned long long)usecs * TIMER_FREQ; in usecs_to_ticks() local
35 do_div(ticks, 1000 * 1000); in usecs_to_ticks()
37 return ticks; in usecs_to_ticks()
46 timer.ticks += now - timer.last_read; in read_timer()
49 timer.ticks += TIMER_MAX_VAL - timer.last_read + now; in read_timer()
55 * Get the number of ticks (in CONFIG_SYS_HZ resolution)
63 sys_ticks = timer.ticks * CONFIG_SYS_HZ; in get_ticks()
80 target = timer.ticks + usecs_to_ticks(usec); in __udelay()
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| /openbmc/qemu/tests/qtest/ |
| H A D | tco-test.c | 40 #define TCO_TICKS_TO_SECS(ticks) (((ticks) * 6) / 10) argument
107 static void set_tco_timeout(const TestData *d, uint16_t ticks) in set_tco_timeout() argument
109 qpci_io_writew(d->dev, d->tco_io_bar, TCO_TMR, ticks); in set_tco_timeout()
165 const uint16_t ticks = TCO_SECS_TO_TICKS(4); in test_tco_timeout() local
176 set_tco_timeout(&d, ticks); in test_tco_timeout()
179 qtest_clock_step(d.qts, ticks * TCO_TICK_NSEC); in test_tco_timeout()
194 qtest_clock_step(d.qts, ticks * TCO_TICK_NSEC); in test_tco_timeout()
209 const uint16_t ticks = 0xffff; in test_tco_max_timeout() local
220 set_tco_timeout(&d, ticks); in test_tco_max_timeout()
223 qtest_clock_step(d.qts, ((ticks & TCO_TMR_MASK) - 1) * TCO_TICK_NSEC); in test_tco_max_timeout()
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| /openbmc/linux/drivers/rtc/ |
| H A D | rtc-88pm80x.c | 103 unsigned long ticks, base, data; in pm80x_rtc_read_time() local
113 ticks = base + data; in pm80x_rtc_read_time()
114 dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", in pm80x_rtc_read_time()
115 base, data, ticks); in pm80x_rtc_read_time()
116 rtc_time64_to_tm(ticks, tm); in pm80x_rtc_read_time()
124 unsigned long ticks, base, data; in pm80x_rtc_set_time() local
126 ticks = rtc_tm_to_time64(tm); in pm80x_rtc_set_time()
132 base = ticks - data; in pm80x_rtc_set_time()
133 dev_dbg(info->dev, "set base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", in pm80x_rtc_set_time()
134 base, data, ticks); in pm80x_rtc_set_time()
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| H A D | rtc-tps6586x.c | 59 unsigned long long ticks = 0; in tps6586x_rtc_read_time() local
72 ticks <<= 8; in tps6586x_rtc_read_time()
73 ticks |= buff[i]; in tps6586x_rtc_read_time()
76 seconds = ticks >> 10; in tps6586x_rtc_read_time()
85 unsigned long long ticks; in tps6586x_rtc_set_time() local
92 ticks = (unsigned long long)seconds << 10; in tps6586x_rtc_set_time()
93 buff[0] = (ticks >> 32) & 0xff; in tps6586x_rtc_set_time()
94 buff[1] = (ticks >> 24) & 0xff; in tps6586x_rtc_set_time()
95 buff[2] = (ticks >> 16) & 0xff; in tps6586x_rtc_set_time()
96 buff[3] = (ticks >> 8) & 0xff; in tps6586x_rtc_set_time()
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| H A D | rtc-88pm860x.c | 82 unsigned long ticks, base, data; in pm860x_rtc_read_time() local
94 ticks = base + data; in pm860x_rtc_read_time()
95 dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", in pm860x_rtc_read_time()
96 base, data, ticks); in pm860x_rtc_read_time()
98 rtc_time64_to_tm(ticks, tm); in pm860x_rtc_read_time()
107 unsigned long ticks, base, data; in pm860x_rtc_set_time() local
109 ticks = rtc_tm_to_time64(tm); in pm860x_rtc_set_time()
115 base = ticks - data; in pm860x_rtc_set_time()
116 dev_dbg(info->dev, "set base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", in pm860x_rtc_set_time()
117 base, data, ticks); in pm860x_rtc_set_time()
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| /openbmc/linux/fs/ |
| H A D | timerfd.c | 39 u64 ticks; member
69 ctx->ticks++; in timerfd_triggered()
94 * wake-up requires ctx->ticks to be non zero, therefore we increment
110 ctx->ticks++; in timerfd_clock_was_set()
201 ctx->ticks = 0; in timerfd_setup()
258 if (ctx->ticks) in timerfd_poll()
270 u64 ticks = 0; in timerfd_read() local
272 if (count < sizeof(ticks)) in timerfd_read()
278 res = wait_event_interruptible_locked_irq(ctx->wqh, ctx->ticks); in timerfd_read()
282 * ticks and we do not rearm the timer. Userspace must in timerfd_read()
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| /openbmc/linux/Documentation/timers/ |
| H A D | no_hz.rst | 2 NO_HZ: Reducing Scheduling-Clock Ticks
13 (also known as "scheduling-clock ticks" or simply "ticks"):
15 1. Never omit scheduling-clock ticks (CONFIG_HZ_PERIODIC=y or
19 2. Omit scheduling-clock ticks on idle CPUs (CONFIG_NO_HZ_IDLE=y or
23 3. Omit scheduling-clock ticks on CPUs that are either idle or that
33 Never Omit Scheduling-Clock Ticks
37 are incapable of omitting scheduling-clock ticks. It turns out that
65 Omit Scheduling-Clock Ticks For Idle CPUs
104 Omit Scheduling-Clock Ticks For CPUs With Only One Runnable Task
109 Note that omitting scheduling-clock ticks for CPUs with only one runnable
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| /openbmc/linux/drivers/watchdog/ |
| H A D | cpu5wdt.c | 28 static int ticks = 10000; variable
61 pr_debug("trigger at %i ticks\n", ticks); in cpu5wdt_trigger()
64 ticks--; in cpu5wdt_trigger()
71 if (cpu5wdt_device.queue && ticks) in cpu5wdt_trigger()
74 /* ticks doesn't matter anyway */ in cpu5wdt_trigger()
83 ticks = cpu5wdt_device.default_ticks; in cpu5wdt_reset()
86 pr_debug("reset (%i ticks)\n", (int) ticks); in cpu5wdt_reset()
116 ticks = cpu5wdt_device.default_ticks; in cpu5wdt_stop()
215 cpu5wdt_device.default_ticks = ticks; in cpu5wdt_init()
284 module_param(ticks, int, 0);
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| /openbmc/linux/drivers/hwmon/ |
| H A D | hih6130.c | 46 * hih6130_temp_ticks_to_millicelsius() - convert raw temperature ticks to
48 * @ticks: temperature ticks value received from sensor
50 static inline int hih6130_temp_ticks_to_millicelsius(int ticks) in hih6130_temp_ticks_to_millicelsius() argument
52 ticks = ticks >> 2; in hih6130_temp_ticks_to_millicelsius()
55 * Formula T = ( ticks / ( 2^14 - 2 ) ) * 165 -40 in hih6130_temp_ticks_to_millicelsius()
57 return (DIV_ROUND_CLOSEST(ticks * 1650, 16382) - 400) * 100; in hih6130_temp_ticks_to_millicelsius()
61 * hih6130_rh_ticks_to_per_cent_mille() - convert raw humidity ticks to
63 * @ticks: humidity ticks value received from sensor
65 static inline int hih6130_rh_ticks_to_per_cent_mille(int ticks) in hih6130_rh_ticks_to_per_cent_mille() argument
67 ticks &= ~0xC000; /* clear status bits */ in hih6130_rh_ticks_to_per_cent_mille()
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| H A D | sht21.c | 49 * sht21_temp_ticks_to_millicelsius() - convert raw temperature ticks to
51 * @ticks: temperature ticks value received from sensor
53 static inline int sht21_temp_ticks_to_millicelsius(int ticks) in sht21_temp_ticks_to_millicelsius() argument
55 ticks &= ~0x0003; /* clear status bits */ in sht21_temp_ticks_to_millicelsius()
60 return ((21965 * ticks) >> 13) - 46850; in sht21_temp_ticks_to_millicelsius()
64 * sht21_rh_ticks_to_per_cent_mille() - convert raw humidity ticks to
66 * @ticks: humidity ticks value received from sensor
68 static inline int sht21_rh_ticks_to_per_cent_mille(int ticks) in sht21_rh_ticks_to_per_cent_mille() argument
70 ticks &= ~0x0003; /* clear status bits */ in sht21_rh_ticks_to_per_cent_mille()
75 return ((15625 * ticks) >> 13) - 6000; in sht21_rh_ticks_to_per_cent_mille()
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| /openbmc/u-boot/doc/SPI/ |
| H A D | README.sandbox-spi | 38 0 erase: 1 ticks, 1024000 KiB/s 8192.000 Mbps
39 1 check: 2 ticks, 512000 KiB/s 4096.000 Mbps
40 2 write: 6 ticks, 170666 KiB/s 1365.328 Mbps
41 3 read: 0 ticks, 1048576000 KiB/s -201326.-592 Mbps
43 0 erase: 1 ticks, 1024000 KiB/s 8192.000 Mbps
44 1 check: 2 ticks, 512000 KiB/s 4096.000 Mbps
45 2 write: 6 ticks, 170666 KiB/s 1365.328 Mbps
46 3 read: 0 ticks, 1048576000 KiB/s -201326.-592 Mbps
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| /openbmc/linux/arch/powerpc/sysdev/ |
| H A D | mpic_timer.c | 85 const u64 ticks, time64_t *time) in convert_ticks_to_time() argument
87 *time = (u64)div_u64(ticks, priv->timerfreq); in convert_ticks_to_time()
90 /* the time set by the user is converted to "ticks" */
92 time64_t time, u64 *ticks) in convert_time_to_ticks() argument
101 *ticks = (u64)time * (u64)priv->timerfreq; in convert_time_to_ticks()
137 static int set_cascade_timer(struct timer_group_priv *priv, u64 ticks, in set_cascade_timer() argument
154 tmp_ticks = div_u64_rem(ticks, MAX_TICKS_CASCADE, &rem_ticks); in set_cascade_timer()
166 u64 ticks) in get_cascade_timer() argument
174 if (ticks > max_ticks) in get_cascade_timer()
182 /* set ticks to timer */ in get_cascade_timer()
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| /openbmc/linux/drivers/ssb/ |
| H A D | driver_extif.c | 115 u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks) in ssb_extif_watchdog_timer_set_wdt() argument
119 return ssb_extif_watchdog_timer_set(extif, ticks); in ssb_extif_watchdog_timer_set_wdt()
125 u32 ticks = (SSB_EXTIF_WATCHDOG_CLK / 1000) * ms; in ssb_extif_watchdog_timer_set_ms() local
127 ticks = ssb_extif_watchdog_timer_set(extif, ticks); in ssb_extif_watchdog_timer_set_ms()
129 return (ticks * 1000) / SSB_EXTIF_WATCHDOG_CLK; in ssb_extif_watchdog_timer_set_ms()
132 u32 ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks) in ssb_extif_watchdog_timer_set() argument
134 if (ticks > SSB_EXTIF_WATCHDOG_MAX_TIMER) in ssb_extif_watchdog_timer_set()
135 ticks = SSB_EXTIF_WATCHDOG_MAX_TIMER; in ssb_extif_watchdog_timer_set()
136 extif_write32(extif, SSB_EXTIF_WATCHDOG, ticks); in ssb_extif_watchdog_timer_set()
138 return ticks; in ssb_extif_watchdog_timer_set()
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| /openbmc/linux/kernel/time/ |
| H A D | tick-legacy.c | 15 * @ticks: number of ticks, that have elapsed since the last call.
20 * If 'ticks' is zero, the CPU is not handling timekeeping, so
25 void legacy_timer_tick(unsigned long ticks) in legacy_timer_tick() argument
27 if (ticks) { in legacy_timer_tick()
30 do_timer(ticks); in legacy_timer_tick()
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| /openbmc/linux/include/sound/ |
| H A D | timer.h | 46 unsigned long ticks; /* max timer ticks per interrupt */ member
67 unsigned long sticks; /* schedule ticks */
89 unsigned long ticks, unsigned long resolution);
96 unsigned long ticks; /* auto-load ticks when expired */ member
97 unsigned long cticks; /* current ticks */
98 unsigned long pticks; /* accumulated ticks for callback */
100 unsigned long lost; /* lost ticks */
126 int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks);
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| /openbmc/linux/drivers/bcma/ |
| H A D | driver_chipcommon.c | 78 u32 ticks) in bcma_chipco_watchdog_timer_set_wdt() argument
82 return bcma_chipco_watchdog_timer_set(cc, ticks); in bcma_chipco_watchdog_timer_set_wdt()
89 u32 ticks; in bcma_chipco_watchdog_timer_set_ms_wdt() local
91 ticks = bcma_chipco_watchdog_timer_set(cc, cc->ticks_per_ms * ms); in bcma_chipco_watchdog_timer_set_ms_wdt()
92 return ticks / cc->ticks_per_ms; in bcma_chipco_watchdog_timer_set_ms_wdt()
235 /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
236 u32 bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks) in bcma_chipco_watchdog_timer_set() argument
242 if (ticks == 1) in bcma_chipco_watchdog_timer_set()
243 ticks = 2; in bcma_chipco_watchdog_timer_set()
244 else if (ticks > maxt) in bcma_chipco_watchdog_timer_set()
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| /openbmc/qemu/system/ |
| H A D | cpu-timers.c | 40 /* clock and ticks */
44 int64_t ticks = timers_state.cpu_ticks_offset; in cpu_get_ticks_locked() local
46 ticks += cpu_get_host_ticks(); in cpu_get_ticks_locked()
49 if (timers_state.cpu_ticks_prev > ticks) { in cpu_get_ticks_locked()
50 /* Non increasing ticks may happen if the host uses software suspend. */ in cpu_get_ticks_locked()
51 timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks; in cpu_get_ticks_locked()
52 ticks = timers_state.cpu_ticks_prev; in cpu_get_ticks_locked()
55 timers_state.cpu_ticks_prev = ticks; in cpu_get_ticks_locked()
56 return ticks; in cpu_get_ticks_locked()
65 int64_t ticks; in cpu_get_ticks() local
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| /openbmc/linux/drivers/acpi/acpica/ |
| H A D | hwtimer.c | 53 * PARAMETERS: ticks - Where the timer value is returned in ACPI_EXPORT_SYMBOL()
55 * RETURN: Status and current timer value (ticks) in ACPI_EXPORT_SYMBOL()
57 * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks). in ACPI_EXPORT_SYMBOL()
60 acpi_status acpi_get_timer(u32 * ticks) in ACPI_EXPORT_SYMBOL()
67 if (!ticks) { in ACPI_EXPORT_SYMBOL()
82 *ticks = (u32)timer_value; in ACPI_EXPORT_SYMBOL()
104 * The PM Timer's clock ticks at roughly 3.6 times per in ACPI_EXPORT_SYMBOL()
114 * 2**24 Ticks / 3,600,000 Ticks/Sec = 4.66 sec in ACPI_EXPORT_SYMBOL()
115 * 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes in ACPI_EXPORT_SYMBOL()
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| /openbmc/u-boot/arch/arm/cpu/armv8/ |
| H A D | generic_timer.c | 90 unsigned long ticks = timer_read_counter(); in get_ticks() local
92 gd->arch.tbl = ticks; in get_ticks()
94 return ticks; in get_ticks()
99 ulong ticks; in usec2ticks() local
101 ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000; in usec2ticks()
103 ticks = ((usec / 10) * (get_tbclk() / 100000)); in usec2ticks()
105 return ticks; in usec2ticks()
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| /openbmc/linux/Documentation/block/ |
| H A D | stat.rst | 32 read ticks milliseconds total wait time for read requests
36 write ticks milliseconds total wait time for write requests
43 discard ticks milliseconds total wait time for discard requests
45 flush ticks milliseconds total wait time for flush requests
75 read ticks, write ticks, discard ticks, flush ticks
103 number of requests waiting (see "read ticks" above for an example).
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| /openbmc/linux/arch/arm/mach-rpc/ |
| H A D | time.c | 33 u32 ticks; in ioc_timer_read() local
45 ticks = ioc_time + RPC_LATCH - count2; in ioc_timer_read()
54 ticks += RPC_LATCH; in ioc_timer_read()
59 * been processed, so add the missed ticks. in ioc_timer_read()
61 ticks += RPC_LATCH; in ioc_timer_read()
64 return ticks; in ioc_timer_read()
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| /openbmc/linux/sound/isa/gus/ |
| H A D | gus_timer.c | 21 unsigned int ticks; in snd_gf1_timer1_start() local
26 ticks = timer->sticks; in snd_gf1_timer1_start()
28 snd_gf1_write8(gus, SNDRV_GF1_GB_ADLIB_TIMER_1, 256 - ticks); /* timer 1 count */ in snd_gf1_timer1_start()
57 unsigned int ticks; in snd_gf1_timer2_start() local
62 ticks = timer->sticks; in snd_gf1_timer2_start()
64 snd_gf1_write8(gus, SNDRV_GF1_GB_ADLIB_TIMER_2, 256 - ticks); /* timer 2 count */ in snd_gf1_timer2_start()
115 .ticks = 256,
124 .ticks = 256,
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| /openbmc/qemu/docs/specs/ |
| H A D | rapl-msr.rst | 90 dividing the time in clock ticks. The number of clock ticks per second can be
91 found by the sysconf system call. A typical value of clock ticks per second is
92 100. So a core can run a process at the maximum of 100 ticks per second. If a
93 package has 4 cores, 400 ticks maximum can be scheduled on all the cores
98 of ticks the process has been scheduled in userspace (utime) and kernel
108 A 4 cores package can schedule a maximum of 400 ticks per second with 100 ticks
109 per second per core. If a thread was scheduled for 100 ticks between a second
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| /openbmc/u-boot/arch/arm/cpu/armv7/ls102xa/ |
| H A D | timer.c | 21 ulong ticks; in usec2ticks() local
24 ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000; in usec2ticks()
26 ticks = ((usec / 10) * (get_tbclk() / 100000)); in usec2ticks()
28 return ticks; in usec2ticks()
105 tmo = us_to_tick(usec); /* convert usecs to ticks */ in __udelay()
113 * On ARM it returns the number of timer ticks per second.
|