| /linux/drivers/gpu/drm/tegra/ |
| H A D | mipi-phy.c | 17 unsigned long period) in mipi_dphy_timing_get_default() argument
20 timing->clkpost = 70 + 52 * period; in mipi_dphy_timing_get_default()
30 timing->hsprepare = 65 + 5 * period; in mipi_dphy_timing_get_default()
31 timing->hszero = 145 + 5 * period; in mipi_dphy_timing_get_default()
32 timing->hssettle = 85 + 6 * period; in mipi_dphy_timing_get_default()
46 timing->hstrail = max(4 * 8 * period, 60 + 4 * 4 * period); in mipi_dphy_timing_get_default()
63 unsigned long period) in mipi_dphy_timing_validate() argument
68 if (timing->clkpost < (60 + 52 * period)) in mipi_dphy_timing_validate()
89 if (timing->dtermen > 35 + 4 * period) in mipi_dphy_timing_validate()
92 if (timing->eot > 105 + 12 * period) in mipi_dphy_timing_validate()
[all …]
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| /linux/drivers/pwm/ |
| H A D | pwm-visconti.c | 49 u32 period, duty_cycle, pwmc0; in visconti_pwm_apply() local
62 if (state->period > (0xffff << 3) * 1000) in visconti_pwm_apply()
63 period = (0xffff << 3) * 1000; in visconti_pwm_apply()
65 period = state->period; in visconti_pwm_apply()
67 if (state->duty_cycle > period) in visconti_pwm_apply()
68 duty_cycle = period; in visconti_pwm_apply()
77 period /= 1000; in visconti_pwm_apply()
80 if (!period) in visconti_pwm_apply()
89 pwmc0 = fls(period >> 16); in visconti_pwm_apply()
93 period >>= pwmc0; in visconti_pwm_apply()
[all …]
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| H A D | pwm-ntxec.c | 57 int period, int duty) in ntxec_pwm_set_raw_period_and_duty_cycle() argument
73 { NTXEC_REG_PERIOD_HIGH, ntxec_reg8(period >> 8) }, in ntxec_pwm_set_raw_period_and_duty_cycle()
75 { NTXEC_REG_PERIOD_LOW, ntxec_reg8(period) }, in ntxec_pwm_set_raw_period_and_duty_cycle()
86 unsigned int period, duty; in ntxec_pwm_apply() local
92 period = min_t(u64, state->period, MAX_PERIOD_NS); in ntxec_pwm_apply()
93 duty = min_t(u64, state->duty_cycle, period); in ntxec_pwm_apply()
95 period /= TIME_BASE_NS; in ntxec_pwm_apply()
108 res = ntxec_pwm_set_raw_period_and_duty_cycle(chip, period, duty); in ntxec_pwm_apply()
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| H A D | pwm-renesas-tpu.c | 76 u16 period; member
182 tpu_pwm_write(tpd, TPU_TGRBn, tpd->period); in tpu_pwm_timer_start()
185 tpd->channel, tpd->duty, tpd->period); in tpu_pwm_timer_start()
226 tpd->period = 0; in tpu_pwm_request()
250 u64 period; in tpu_pwm_config() local
265 period = mul_u64_u64_div_u64(clk_rate, period_ns, NSEC_PER_SEC); in tpu_pwm_config()
279 switch (period) { in tpu_pwm_config()
300 period >>= 2 * prescaler; in tpu_pwm_config()
310 clk_rate, 1 << (2 * prescaler), (u32)period, duty); in tpu_pwm_config()
312 if (tpd->prescaler == prescaler && tpd->period == period) in tpu_pwm_config()
[all …]
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| H A D | core.c | 83 .period = wf->period_length_ns, in pwm_wf2state()
90 .period = wf->period_length_ns, in pwm_wf2state()
105 .period_length_ns = state->period, in pwm_state2wf()
111 .period_length_ns = state->period, in pwm_state2wf()
112 .duty_length_ns = state->period - state->duty_cycle, in pwm_state2wf()
458 s2.duty_cycle = s1.period - s1.duty_cycle; in pwm_apply_debug()
459 s2.period = s1.period; in pwm_apply_debug()
466 state->duty_cycle < state->period) in pwm_apply_debug()
471 last->period > s2.period && in pwm_apply_debug()
472 last->period <= state->period) in pwm_apply_debug()
[all …]
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| H A D | pwm-fsl-ftm.c | 47 struct fsl_pwm_periodcfg period; member
120 rate = clk_get_rate(fpc->clk[fpc->period.clk_select]); in fsl_pwm_ticks_to_ns()
123 do_div(exval, rate >> fpc->period.clk_ps); in fsl_pwm_ticks_to_ns()
190 unsigned int period = fpc->period.mod_period + 1; in fsl_pwm_calculate_duty() local
191 unsigned int period_ns = fsl_pwm_ticks_to_ns(fpc, period); in fsl_pwm_calculate_duty()
193 duty = (unsigned long long)duty_ns * period; in fsl_pwm_calculate_duty()
234 if (!fsl_pwm_calculate_period(fpc, newstate->period, &periodcfg)) { in fsl_pwm_apply_config()
247 else if (!fsl_pwm_periodcfg_are_equal(&fpc->period, &periodcfg)) { in fsl_pwm_apply_config()
254 if (fpc->period.clk_select != periodcfg.clk_select) { in fsl_pwm_apply_config()
256 enum fsl_pwm_clk oldclk = fpc->period.clk_select; in fsl_pwm_apply_config()
[all …]
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| H A D | pwm-crc.c | 59 if (state->period > PWM_MAX_PERIOD_NS) { in crc_pwm_apply()
76 pwm_get_period(pwm) != state->period) { in crc_pwm_apply()
79 do_div(level, state->period); in crc_pwm_apply()
89 pwm_get_period(pwm) != state->period) { in crc_pwm_apply()
98 if (pwm_get_period(pwm) != state->period || in crc_pwm_apply()
100 int clk_div = crc_pwm_calc_clk_div(state->period); in crc_pwm_apply()
144 state->period = in crc_pwm_get_state()
147 DIV_ROUND_UP_ULL(duty_cycle_reg * state->period, PWM_MAX_LEVEL); in crc_pwm_get_state()
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| H A D | pwm-intel-lgm.c | 46 u32 period; member
71 if (state->polarity != PWM_POLARITY_NORMAL || state->period < pc->period) in lgm_pwm_apply()
77 duty_cycle = min_t(u64, state->duty_cycle, pc->period); in lgm_pwm_apply()
78 val = duty_cycle * LGM_PWM_MAX_DUTY_CYCLE / pc->period; in lgm_pwm_apply()
97 state->period = pc->period; /* fixed period */ in lgm_pwm_get_state()
101 state->duty_cycle = DIV_ROUND_UP(duty * pc->period, LGM_PWM_MAX_DUTY_CYCLE); in lgm_pwm_get_state()
117 pc->period = LGM_PWM_PERIOD_2WIRE_NS; in lgm_pwm_init()
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| /linux/lib/ |
| H A D | flex_proportions.c | 42 p->period = 0; in fprop_global_init()
79 p->period += periods; in fprop_new_period()
98 pl->period = 0; in fprop_local_init_percpu()
111 unsigned int period = p->period; in fprop_reflect_period_percpu() local
115 if (pl->period == period) in fprop_reflect_period_percpu()
119 if (pl->period >= period) { in fprop_reflect_period_percpu()
124 if (period - pl->period < BITS_PER_LONG) { in fprop_reflect_period_percpu()
131 -val + (val >> (period-pl->period)), PROP_BATCH); in fprop_reflect_period_percpu()
134 pl->period = period; in fprop_reflect_period_percpu()
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| /linux/drivers/iio/common/inv_sensors/ |
| H A D | inv_sensors_timestamp.c | 53 ts->period = chip->init_period; in inv_sensors_timestamp_init()
61 uint32_t period, bool fifo) in inv_sensors_timestamp_update_odr() argument
69 mult = period / ts->chip.clock_period; in inv_sensors_timestamp_update_odr()
81 static bool inv_validate_period(struct inv_sensors_timestamp *ts, uint32_t period) in inv_validate_period() argument
88 if (period > period_min && period < period_max) in inv_validate_period()
95 uint32_t period) in inv_update_chip_period() argument
99 if (!inv_validate_period(ts, period)) in inv_update_chip_period()
103 new_chip_period = period / ts->mult; in inv_update_chip_period()
105 ts->period = ts->mult * ts->chip_period.val; in inv_update_chip_period()
122 add_max = period_max - (int64_t)ts->period; in inv_align_timestamp_it()
[all …]
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| /linux/tools/perf/tests/ |
| H A D | hists_output.c | 54 struct perf_sample sample = { .period = 100, }; in add_hist_entries()
183 !strcmp(SYM(he), "main") && he->stat.period == 200); in test1()
189 !strcmp(SYM(he), "page_fault") && he->stat.period == 100); in test1()
195 !strcmp(SYM(he), "main") && he->stat.period == 100); in test1()
201 !strcmp(SYM(he), "xmalloc") && he->stat.period == 100); in test1()
207 !strcmp(SYM(he), "page_fault") && he->stat.period == 100); in test1()
213 !strcmp(SYM(he), "schedule") && he->stat.period == 100); in test1()
219 !strcmp(SYM(he), "free") && he->stat.period == 100); in test1()
225 !strcmp(SYM(he), "malloc") && he->stat.period == 100); in test1()
231 !strcmp(SYM(he), "cmd_record") && he->stat.period in test1()
[all...] |
| /linux/drivers/net/wireless/mediatek/mt76/ |
| H A D | mt76x02_dfs.c | 257 pulse->period = mt76_rr(dev, MT_BBP(DFS, 19)); in mt76x02_dfs_get_hw_pulse()
272 if (!pulse->period || !pulse->w1) in mt76x02_dfs_check_hw_pulse()
287 ret = (pulse->period >= 2900 && in mt76x02_dfs_check_hw_pulse()
288 (pulse->period <= 4700 || in mt76x02_dfs_check_hw_pulse()
289 pulse->period >= 6400) && in mt76x02_dfs_check_hw_pulse()
290 (pulse->period <= 6800 || in mt76x02_dfs_check_hw_pulse()
291 pulse->period >= 10200) && in mt76x02_dfs_check_hw_pulse()
292 pulse->period <= 61600); in mt76x02_dfs_check_hw_pulse()
294 ret = (pulse->period >= 2900 && in mt76x02_dfs_check_hw_pulse()
295 pulse->period <= 61600); in mt76x02_dfs_check_hw_pulse()
[all …]
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| /linux/drivers/watchdog/ |
| H A D | booke_wdt.c | 60 static unsigned long long period_to_sec(unsigned int period) in period_to_sec() argument
62 unsigned long long tmp = 1ULL << (64 - period); in period_to_sec()
81 unsigned int period; in sec_to_period() local
82 for (period = 63; period > 0; period--) { in sec_to_period()
83 if (period_to_sec(period) >= secs) in sec_to_period()
84 return period; in sec_to_period()
93 static unsigned long long period_to_sec(unsigned int period) in period_to_sec() argument
95 return period; in period_to_sec()
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| H A D | nic7018_wdt.c | 47 u32 period; member
52 u32 period; member
61 static inline u32 nic7018_timeout(u32 period, u8 counter) in nic7018_timeout() argument
63 return period * counter - period / 2; in nic7018_timeout()
98 wdd->timeout = nic7018_timeout(config->period, counter); in nic7018_set_timeout()
99 wdt->period = config->period; in nic7018_set_timeout()
151 return nic7018_timeout(wdt->period, count); in nic7018_get_timeleft()
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| /linux/Documentation/RCU/Design/Memory-Ordering/ |
| H A D | Tree-RCU-Memory-Ordering.rst | 13 grace-period memory ordering guarantee is provided.
20 Any code that happens after the end of a given RCU grace period is guaranteed
22 period that are within RCU read-side critical sections.
24 period is guaranteed to not see the effects of all accesses following the end
25 of that grace period that are within RCU read-side critical sections.
34 two phases, one of which is executed before the grace period and
35 the other of which is executed after the grace period.
49 The workhorse for RCU's grace-period memory ordering is the
74 period, including any CPUs that came online or went offline during
75 the grace period in question.
[all …]
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| /linux/drivers/scsi/ |
| H A D | scsi_transport_spi.c | 413 static int period_to_str(char *buf, int period) in period_to_str() argument
417 if (period < 0 || period > 0xff) { in period_to_str()
419 } else if (period <= SPI_STATIC_PPR) { in period_to_str()
420 picosec = ppr_to_ps[period]; in period_to_str()
422 picosec = period * 4000; in period_to_str()
435 show_spi_transport_period_helper(char *buf, int period) in show_spi_transport_period_helper() argument
437 int len = period_to_str(buf, period); in show_spi_transport_period_helper()
447 int j, picosec, period = -1; in store_spi_transport_period_helper() local
465 period = j; in store_spi_transport_period_helper()
469 if (period == -1) in store_spi_transport_period_helper()
[all …]
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| /linux/Documentation/RCU/Design/Expedited-Grace-Periods/ |
| H A D | Expedited-Grace-Periods.rst | 23 grace period.
32 state, the expedited grace period has completed.
43 expedited grace period is shown in the following diagram:
54 Otherwise, the expedited grace period will use
72 block the current expedited grace period until it resumes and finds its
75 the CPU is no longer blocking the grace period.
86 | Why not just have the expedited grace period check the state of all |
116 the handling of a given CPU by an RCU-sched expedited grace period is
153 period. Note that this number never decreases, at least in the
159 beginning of the most recent RCU expedited grace period. The
[all …]
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| /linux/drivers/input/misc/ |
| H A D | pwm-beeper.c | 23 unsigned long period; member
31 static int pwm_beeper_on(struct pwm_beeper *beeper, unsigned long period) in pwm_beeper_on() argument
39 state.period = period; in pwm_beeper_on()
72 unsigned long period = READ_ONCE(beeper->period); in pwm_beeper_work() local
74 if (period) in pwm_beeper_work()
75 pwm_beeper_on(beeper, period); in pwm_beeper_work()
99 beeper->period = 0; in pwm_beeper_event()
101 beeper->period = HZ_TO_NANOSECONDS(value); in pwm_beeper_event()
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| /linux/arch/m68k/atari/ |
| H A D | atasound.c | 60 int period; in atari_mksound() local
75 period = PSG_FREQ / hz; in atari_mksound()
77 if (period > 0xfff) period = 0xfff; in atari_mksound()
81 sound_ym.wd_data = period & 0xff; in atari_mksound()
83 sound_ym.wd_data = (period >> 8) & 0xf; in atari_mksound()
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| /linux/drivers/iio/trigger/ |
| H A D | iio-trig-hrtimer.c | 29 ktime_t period; member
57 u64 period; in iio_hrtimer_store_sampling_frequency() local
73 period = PSEC_PER_SEC; in iio_hrtimer_store_sampling_frequency()
74 do_div(period, val); in iio_hrtimer_store_sampling_frequency()
75 info->period = period; /* nS */ in iio_hrtimer_store_sampling_frequency()
104 hrtimer_forward_now(timer, info->period); in iio_hrtimer_trig_handler()
117 hrtimer_start(&trig_info->timer, trig_info->period, in iio_trig_hrtimer_set_state()
152 trig_info->period = NSEC_PER_SEC / trig_info->sampling_frequency[0]; in iio_trig_hrtimer_probe()
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| /linux/arch/m68k/amiga/ |
| H A D | amisound.c | 84 unsigned long period = (clock_constant / hz); in amiga_mksound() local
86 if (period < amiga_audio_min_period) in amiga_mksound()
87 period = amiga_audio_min_period; in amiga_mksound()
88 if (period > MAX_PERIOD) in amiga_mksound()
89 period = MAX_PERIOD; in amiga_mksound()
94 custom.aud[2].audper = (unsigned short)period; in amiga_mksound()
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| /linux/drivers/net/wireless/intel/iwlwifi/dvm/ |
| H A D | power.c | 143 enum iwl_power_level lvl, int period) in iwl_static_sleep_cmd() argument
153 if (period <= IWL_DTIM_RANGE_1_MAX) in iwl_static_sleep_cmd()
155 if (period <= IWL_DTIM_RANGE_0_MAX) in iwl_static_sleep_cmd()
159 if (period <= IWL_DTIM_RANGE_1_MAX) in iwl_static_sleep_cmd()
161 if (period <= IWL_DTIM_RANGE_0_MAX) in iwl_static_sleep_cmd()
170 if (period == 0) { in iwl_static_sleep_cmd()
172 period = 1; in iwl_static_sleep_cmd()
187 cpu_to_le32(period * (skip + 1)); in iwl_static_sleep_cmd()
190 if (slp_itrvl > period) in iwl_static_sleep_cmd()
192 cpu_to_le32((slp_itrvl / period) * period); in iwl_static_sleep_cmd()
[all …]
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| /linux/arch/powerpc/platforms/52xx/ |
| H A D | mpc52xx_gpt.c | 383 static int mpc52xx_gpt_do_start(struct mpc52xx_gpt_priv *gpt, u64 period, in mpc52xx_gpt_do_start() argument
403 clocks = period * (u64)gpt->ipb_freq; in mpc52xx_gpt_do_start()
453 int mpc52xx_gpt_start_timer(struct mpc52xx_gpt_priv *gpt, u64 period, in mpc52xx_gpt_start_timer() argument
456 return mpc52xx_gpt_do_start(gpt, period, continuous, 0); in mpc52xx_gpt_start_timer()
491 u64 period; in mpc52xx_gpt_timer_period() local
496 period = in_be32(&gpt->regs->count); in mpc52xx_gpt_timer_period()
499 prescale = period >> 16; in mpc52xx_gpt_timer_period()
500 period &= 0xffff; in mpc52xx_gpt_timer_period()
503 period = period * prescale * 1000000000ULL; in mpc52xx_gpt_timer_period()
504 do_div(period, gpt->ipb_freq); in mpc52xx_gpt_timer_period()
[all …]
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| /linux/Documentation/litmus-tests/rcu/ |
| H A D | RCU+sync+free.litmus | 7 * follows a grace period, if it did not see writes that precede that grace
8 * period.
11 * period assigns a pointer, and the writes following the grace period destroy
14 * This is one implication of the RCU grace-period guarantee, which says (among
15 * other things) that an RCU read-side critical section cannot span a grace period.
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| /linux/drivers/clk/ |
| H A D | clk-pwm.c | 55 duty->den = state.period; in clk_pwm_get_duty_cycle()
86 if (!pargs.period) { in clk_pwm_probe()
92 clk_pwm->fixed_rate = div64_u64(NSEC_PER_SEC, pargs.period); in clk_pwm_probe()
99 if (pargs.period != NSEC_PER_SEC / clk_pwm->fixed_rate && in clk_pwm_probe()
100 pargs.period != DIV_ROUND_UP(NSEC_PER_SEC, clk_pwm->fixed_rate)) { in clk_pwm_probe()
111 ret = pwm_config(pwm, (pargs.period + 1) >> 1, pargs.period); in clk_pwm_probe()
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