Merge "time: sched_clock: record cycle count in suspend and resume" (02ea5fbe) · Commits · e / devices / android_kernel_sony_msm8998

kernel/time/sched_clock.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,10 @@ struct clock_data {
		static struct hrtimer sched_clock_timer;
		static int irqtime = -1;
		static int initialized;
		static u64 suspend_ns;
		static u64 suspend_cycles;
		static u64 resume_cycles;


		core_param(irqtime, irqtime, int, 0400);

		@@ -282,6 +286,11 @@ static int sched_clock_suspend(void)
		struct clock_read_data *rd = &cd.read_data[0];

		update_sched_clock();

		suspend_ns = rd->epoch_ns;
		suspend_cycles = rd->epoch_cyc;
		pr_info("suspend ns:%17llu suspend cycles:%17llu\n",
		rd->epoch_ns, rd->epoch_cyc);
		hrtimer_cancel(&sched_clock_timer);
		rd->read_sched_clock = suspended_sched_clock_read;

		@@ -293,6 +302,8 @@ static void sched_clock_resume(void)
		struct clock_read_data *rd = &cd.read_data[0];

		rd->epoch_cyc = cd.actual_read_sched_clock();
		resume_cycles = rd->epoch_cyc;
		pr_info("resume cycles:%17llu\n", rd->epoch_cyc);
		hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL);
		rd->read_sched_clock = cd.actual_read_sched_clock;
		}