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Date: Mon, 18 Sep 2017 00:40:33 +0000 From: "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com> To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "stable@...r.kernel.org" <stable@...r.kernel.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com> Subject: [PATCH for 4.9 26/39] cpufreq: intel_pstate: Update pid_params.sample_rate_ns in pid_param_set() From: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com> [ Upstream commit 6e7408acd04d06c04981c0c0fb5a2462b16fae4f ] Fix the debugfs interface for PID tuning to actually update pid_params.sample_rate_ns on PID parameters updates, as changing pid_params.sample_rate_ms via debugfs has no effect now. Fixes: a4675fbc4a7a (cpufreq: intel_pstate: Replace timers with utilization update callbacks) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> Acked-by: Viresh Kumar <viresh.kumar@...aro.org> Signed-off-by: Sasha Levin <alexander.levin@...izon.com> --- drivers/cpufreq/intel_pstate.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 80fa656da5ab..a59ae8e24d3d 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -609,6 +609,7 @@ static void intel_pstate_hwp_set_online_cpus(void) static int pid_param_set(void *data, u64 val) { *(u32 *)data = val; + pid_params.sample_rate_ns = pid_params.sample_rate_ms * NSEC_PER_MSEC; intel_pstate_reset_all_pid(); return 0; } -- 2.11.0
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