| /linux/tools/testing/selftests/timers/ |
| H A D | clocksource-switch.c | 1 /* Clocksource change test
6 * NOTE: This is a meta-test which quickly changes the clocksource and
12 * $ gcc clocksource-switch.c -o clocksource-switch -lrt
47 fd = open("/sys/devices/system/clocksource/clocksource0/available_clocksource", O_RDONLY); in get_clocksources()
79 fd = open("/sys/devices/system/clocksource/clocksource0/current_clocksource", O_RDONLY); in get_cur_clocksource()
86 int change_clocksource(char *clocksource) in change_clocksource() argument
91 fd = open("/sys/devices/system/clocksource/clocksource0/current_clocksource", O_WRONLY); in change_clocksource()
96 size = write(fd, clocksource, strlen(clocksource)); in change_clocksource()
159 ksft_print_msg("Validating clocksource %s\n", in main()
189 ksft_test_result(!status, "clocksource-switch\n"); in main()
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| /linux/drivers/clocksource/ |
| H A D | timer-vt8500.c | 17 #include <linux/clocksource.h>
43 static u64 vt8500_timer_read(struct clocksource *cs) in vt8500_timer_read()
53 static struct clocksource clocksource = { variable
65 u64 alarm = clocksource.read(&clocksource) + cycles; in vt8500_timer_set_next_event()
71 if ((signed)(alarm - clocksource.read(&clocksource)) <= MIN_OSCR_DELTA) in vt8500_timer_set_next_event()
126 ret = clocksource_register_hz(&clocksource, VT8500_TIMER_HZ); in vt8500_timer_init()
129 __func__, clocksource.name); in vt8500_timer_init()
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| H A D | timer-pistachio.c | 3 * Pistachio clocksource based on general-purpose timers
11 #include <linux/clocksource.h>
48 struct clocksource cs;
68 pistachio_clocksource_read_cycles(struct clocksource *cs) in pistachio_clocksource_read_cycles()
93 static void pistachio_clksrc_set_mode(struct clocksource *cs, int timeridx, in pistachio_clksrc_set_mode()
108 static void pistachio_clksrc_enable(struct clocksource *cs, int timeridx) in pistachio_clksrc_enable()
118 static void pistachio_clksrc_disable(struct clocksource *cs, int timeridx) in pistachio_clksrc_disable()
124 static int pistachio_clocksource_enable(struct clocksource *cs) in pistachio_clocksource_enable()
130 static void pistachio_clocksource_disable(struct clocksource *cs) in pistachio_clocksource_disable()
202 /* Disable irq's for clocksource usage */ in pistachio_clksrc_of_init()
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| H A D | dw_apb_timer.c | 44 clocksource_to_dw_apb_clocksource(struct clocksource *cs) in clocksource_to_dw_apb_clocksource()
280 * dw_apb_clocksource_start() - start the clocksource counting.
282 * @dw_cs: The clocksource to start.
284 * This is used to start the clocksource before registration and can be used
306 static u64 __apbt_read_clocksource(struct clocksource *cs) in __apbt_read_clocksource()
318 static void apbt_restart_clocksource(struct clocksource *cs) in apbt_restart_clocksource()
327 * dw_apb_clocksource_init() - use an APB timer as a clocksource.
329 * @rating: The rating to give the clocksource.
330 * @name: The name for the clocksource.
334 * This creates a clocksource using an APB timer but does not yet register it
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| H A D | timer-ti-32k.c | 7 * Update to use new clocksource/clockevent layers
31 #include <linux/clocksource.h>
36 * 32KHz clocksource ... always available, on pretty most chips except
50 struct clocksource cs;
53 static inline struct ti_32k *to_ti_32k(struct clocksource *cs) in to_ti_32k()
58 static u64 notrace ti_32k_read_cycles(struct clocksource *cs) in ti_32k_read_cycles()
152 pr_info("OMAP clocksource: 32k_counter at 32768 Hz\n"); in ti_32k_timer_init()
156 pr_err("32k_counter: can't register clocksource\n"); in ti_32k_timer_init()
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| H A D | timer-atmel-pit.c | 7 * Converted to ClockSource/ClockEvents by David Brownell.
40 struct clocksource clksrc;
49 static inline struct pit_data *clksrc_to_pit_data(struct clocksource *clksrc) in clksrc_to_pit_data()
70 * Clocksource: just a monotonic counter of MCK/16 cycles.
73 static u64 read_pit_clk(struct clocksource *cs) in read_pit_clk()
94 /* disable irq, leaving the clocksource active */ in pit_clkevt_shutdown()
106 /* update clocksource counter */ in pit_clkevt_set_periodic()
164 * Set up both clocksource and clockevent support.
217 * Register clocksource. The high order bits of PIV are unused, in at91sam926x_pit_dt_init()
229 pr_err("Failed to register clocksource\n"); in at91sam926x_pit_dt_init()
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| H A D | timer-goldfish.c | 5 #include <linux/clocksource.h>
10 #include <clocksource/timer-goldfish.h>
13 struct clocksource cs;
24 static struct goldfish_timer *cs_to_gf(struct clocksource *cs) in cs_to_gf()
29 static u64 goldfish_timer_read(struct clocksource *cs) in goldfish_timer_read()
131 timerdrv->cs = (struct clocksource){ in goldfish_timer_init()
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| H A D | arc_timer.c | 9 * We've designated TIMER0 for clockevents and TIMER1 for clocksource
19 #include <linux/clocksource.h>
58 static u64 arc_read_gfrc(struct clocksource *cs) in arc_read_gfrc()
95 static struct clocksource arc_counter_gfrc = {
110 pr_warn("Global-64-bit-Ctr clocksource not detected\n"); in arc_cs_setup_gfrc()
128 static u64 arc_read_rtc(struct clocksource *cs) in arc_read_rtc()
153 static struct clocksource arc_counter_rtc = {
168 pr_warn("Local-64-bit-Ctr clocksource not detected\n"); in arc_cs_setup_rtc()
196 static u64 arc_read_timer1(struct clocksource *cs) in arc_read_timer1()
206 static struct clocksource arc_counter_timer1 = {
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| H A D | scx200_hrt.c | 5 * This is a clocksource driver for the Geode SCx200's 1 or 27 MHz
15 #include <linux/clocksource.h>
42 static u64 read_hrt(struct clocksource *cs) in read_hrt()
48 static struct clocksource cs_hrt = {
89 MODULE_DESCRIPTION("clocksource on SCx200 HiRes Timer");
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| H A D | ingenic-ost.c | 10 #include <linux/clocksource.h>
39 struct clocksource cs;
56 static u64 notrace ingenic_ost_clocksource_readl(struct clocksource *cs) in ingenic_ost_clocksource_readl()
61 static u64 notrace ingenic_ost_clocksource_readh(struct clocksource *cs) in ingenic_ost_clocksource_readh()
71 struct clocksource *cs; in ingenic_ost_probe()
127 dev_err(dev, "clocksource registration failed"); in ingenic_ost_probe()
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| H A D | clksrc_st_lpc.c | 3 * Clocksource using the Low Power Timer found in the Low Power Controller (LPC)
12 #include <linux/clocksource.h>
58 pr_err("clksrc-st-lpc: Failed to register clocksource\n"); in st_clksrc_init()
102 /* LPC can either run as a Clocksource or in RTC or WDT mode */ in st_clksrc_of_register()
126 pr_info("clksrc-st-lpc: clocksource initialised - running @ %luHz\n", in st_clksrc_of_register()
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| H A D | mps2-timer.c | 12 #include <linux/clocksource.h>
196 pr_err("failed to get clock for clocksource: %d\n", ret); in mps2_clocksource_init()
202 pr_err("failed to enable clock for clocksource: %d\n", ret); in mps2_clocksource_init()
212 pr_err("failed to map register for clocksource: %d\n", ret); in mps2_clocksource_init()
219 /* ... and set it up as free-running clocksource */ in mps2_clocksource_init()
229 pr_err("failed to init clocksource: %d\n", ret); in mps2_clocksource_init()
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| H A D | timer-davinci.c | 3 * TI DaVinci clocksource driver
20 #include <clocksource/timer-davinci.h>
61 struct clocksource dev;
186 static u64 davinci_clocksource_read(struct clocksource *dev) in davinci_clocksource_read()
193 * clocksource. The default is making the former run in oneshot mode
212 * both clocksource and clockevent. We set tim12 to periodic and don't touch
329 pr_err("Unable to register clocksource\n"); in davinci_timer_register()
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| H A D | timer-microchip-pit64b.c | 79 * struct mchp_pit64b_clksrc - PIT64B clocksource data structure
81 * @clksrc: clocksource
85 struct clocksource clksrc;
92 /* Base address for clocksource timer. */
150 static void mchp_pit64b_clksrc_suspend(struct clocksource *cs) in mchp_pit64b_clksrc_suspend()
157 static void mchp_pit64b_clksrc_resume(struct clocksource *cs) in mchp_pit64b_clksrc_resume()
165 static u64 mchp_pit64b_clksrc_read(struct clocksource *cs) in mchp_pit64b_clksrc_read()
376 pr_debug("clksrc: Failed to register PIT64B clocksource!\n"); in mchp_pit64b_init_clksrc()
500 /* 2nd request, register clocksource. */ in mchp_pit64b_dt_init()
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| /linux/arch/mips/alchemy/common/ |
| H A D | time.c | 16 * Clocksource/event using the 32.768kHz-clocked Counter1 ('RTC' in the
18 * counter control register, otherwise the CP0 counter clocksource/event
23 #include <linux/clocksource.h>
35 static u64 au1x_counter1_read(struct clocksource *cs) in au1x_counter1_read()
40 static struct clocksource au1x_counter1_clocksource = {
83 * has been detected. If so install the rtcmatch2 clocksource, in alchemy_time_init()
116 /* register counter1 clocksource and event device */ in alchemy_time_init()
130 printk(KERN_INFO "Alchemy clocksource installed\n"); in alchemy_time_init()
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| /linux/include/clocksource/ |
| H A D | timer-davinci.h | 3 * TI DaVinci clocksource driver
22 * struct davinci_timer_cfg - davinci clocksource driver configuration struct
24 * @irq: clockevent and clocksource interrupt resources
28 * clock half for both clocksource and clockevent and the compare register
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| /linux/arch/mips/kernel/ |
| H A D | csrc-bcm1480.c | 5 #include <linux/clocksource.h>
19 static u64 bcm1480_hpt_read(struct clocksource *cs) in bcm1480_hpt_read()
24 struct clocksource bcm1480_clocksource = {
39 struct clocksource *cs = &bcm1480_clocksource; in sb1480_clocksource_init()
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| H A D | csrc-ioasic.c | 3 * DEC I/O ASIC's counter clocksource
7 #include <linux/clocksource.h>
16 static u64 dec_ioasic_hpt_read(struct clocksource *cs) in dec_ioasic_hpt_read()
21 static struct clocksource clocksource_dec = {
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| H A D | csrc-sb1250.c | 5 #include <linux/clocksource.h>
35 static u64 sb1250_hpt_read(struct clocksource *cs) in sb1250_hpt_read()
40 struct clocksource bcm1250_clocksource = {
55 struct clocksource *cs = &bcm1250_clocksource; in sb1250_clocksource_init()
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| /linux/arch/arm/mach-footbridge/ |
| H A D | dc21285-timer.c | 9 #include <linux/clocksource.h>
23 static u64 cksrc_dc21285_read(struct clocksource *cs) in cksrc_dc21285_read()
28 static int cksrc_dc21285_enable(struct clocksource *cs) in cksrc_dc21285_enable()
36 static void cksrc_dc21285_disable(struct clocksource *cs) in cksrc_dc21285_disable()
41 static struct clocksource cksrc_dc21285 = {
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| /linux/arch/openrisc/kernel/ |
| H A D | time.c | 19 #include <linux/clocksource.h>
135 * Clocksource: Based on OpenRISC timer/counter
140 static u64 openrisc_timer_read(struct clocksource *cs) in openrisc_timer_read()
145 static struct clocksource openrisc_timer = {
158 panic("failed to register clocksource"); in openrisc_timer_init()
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| /linux/rust/kernel/ |
| H A D | time.rs | 69 pub unsafe trait ClockSource { interface
96 unsafe impl ClockSource for Monotonic {
123 unsafe impl ClockSource for RealTime {
143 unsafe impl ClockSource for BootTime {
167 unsafe impl ClockSource for Tai {
183 pub struct Instant<C: ClockSource> {
188 impl<C: ClockSource> Clone for Instant<C> {
194 impl<C: ClockSource> Copy for Instant<C> {}
196 impl<C: ClockSource> Instant<C> {
200 // INVARIANT: The `ClockSource::ktime_get()` function returns a value in the range in now()
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| /linux/arch/m68k/hp300/ |
| H A D | time.c | 11 #include <linux/clocksource.h>
25 static u64 hp300_read_clk(struct clocksource *cs);
27 static struct clocksource hp300_clk = {
77 static u64 hp300_read_clk(struct clocksource *cs) in hp300_read_clk()
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| /linux/arch/sh/kernel/ |
| H A D | time.c | 29 * clockevents and clocksource devices respectively. In the event in sh_late_time_init()
31 * clocksource and the jiffies clocksource is used transparently in sh_late_time_init()
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| /linux/kernel/time/ |
| H A D | jiffies.c | 3 * This file contains the jiffies based clocksource.
7 #include <linux/clocksource.h>
16 static u64 jiffies_read(struct clocksource *cs) in jiffies_read()
22 * The Jiffies based clocksource is the lowest common
32 static struct clocksource clocksource_jiffies = {
65 struct clocksource * __init __weak clocksource_default_clock(void) in clocksource_default_clock()
74 static struct clocksource refined_jiffies;
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