This source file includes following definitions.
- profile_pc
- time_init
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10 #include <linux/clockchips.h>
11 #include <linux/export.h>
12 #include <linux/kernel.h>
13 #include <linux/interrupt.h>
14 #include <linux/time.h>
15 #include <linux/init.h>
16 #include <linux/sched.h>
17 #include <linux/smp.h>
18 #include <linux/timex.h>
19 #include <linux/errno.h>
20 #include <linux/profile.h>
21 #include <linux/syscore_ops.h>
22 #include <linux/timer.h>
23 #include <linux/irq.h>
24 #include <linux/delay.h>
25 #include <linux/clocksource.h>
26 #include <linux/clk-provider.h>
27 #include <linux/acpi.h>
28
29 #include <clocksource/arm_arch_timer.h>
30
31 #include <asm/thread_info.h>
32 #include <asm/stacktrace.h>
33
34 unsigned long profile_pc(struct pt_regs *regs)
35 {
36 struct stackframe frame;
37
38 if (!in_lock_functions(regs->pc))
39 return regs->pc;
40
41 start_backtrace(&frame, regs->regs[29], regs->pc);
42
43 do {
44 int ret = unwind_frame(NULL, &frame);
45 if (ret < 0)
46 return 0;
47 } while (in_lock_functions(frame.pc));
48
49 return frame.pc;
50 }
51 EXPORT_SYMBOL(profile_pc);
52
53 void __init time_init(void)
54 {
55 u32 arch_timer_rate;
56
57 of_clk_init(NULL);
58 timer_probe();
59
60 tick_setup_hrtimer_broadcast();
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62 arch_timer_rate = arch_timer_get_rate();
63 if (!arch_timer_rate)
64 panic("Unable to initialise architected timer.\n");
65
66
67 lpj_fine = arch_timer_rate / HZ;
68 }