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authorFrederic Weisbecker <fweisbec@gmail.com>2017-01-31 06:09:20 +0300
committerIngo Molnar <mingo@kernel.org>2017-02-01 11:13:47 +0300
commit564b733c899f4e12a64946658960fce80cad0b05 (patch)
tree12743791536a515250ccbd63af0019d2dbdbc266 /drivers/macintosh/rack-meter.c
parent7fb1327ee9b92fca27662f9b9d60c7c3376d6c69 (diff)
downloadlinux-564b733c899f4e12a64946658960fce80cad0b05.tar.xz
macintosh/rack-meter: Convert cputime64_t use to u64
cputime_t is going to be removed and replaced by nsecs units, so convert the drivers/macintosh/rack-meter.c use to u64.. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1485832191-26889-5-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/macintosh/rack-meter.c')
-rw-r--r--drivers/macintosh/rack-meter.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index c114594136d4..e199fd6c71ce 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -52,8 +52,8 @@ struct rackmeter_dma {
struct rackmeter_cpu {
struct delayed_work sniffer;
struct rackmeter *rm;
- cputime64_t prev_wall;
- cputime64_t prev_idle;
+ u64 prev_wall;
+ u64 prev_idle;
int zero;
} ____cacheline_aligned;
@@ -81,7 +81,7 @@ static int rackmeter_ignore_nice;
/* This is copied from cpufreq_ondemand, maybe we should put it in
* a common header somewhere
*/
-static inline cputime64_t get_cpu_idle_time(unsigned int cpu)
+static inline u64 get_cpu_idle_time(unsigned int cpu)
{
u64 retval;
@@ -91,7 +91,7 @@ static inline cputime64_t get_cpu_idle_time(unsigned int cpu)
if (rackmeter_ignore_nice)
retval += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
- return nsecs_to_cputime64(retval);
+ return retval;
}
static void rackmeter_setup_i2s(struct rackmeter *rm)
@@ -217,23 +217,23 @@ static void rackmeter_do_timer(struct work_struct *work)
container_of(work, struct rackmeter_cpu, sniffer.work);
struct rackmeter *rm = rcpu->rm;
unsigned int cpu = smp_processor_id();
- cputime64_t cur_jiffies, total_idle_ticks;
- unsigned int total_ticks, idle_ticks;
+ u64 cur_nsecs, total_idle_nsecs;
+ u64 total_nsecs, idle_nsecs;
int i, offset, load, cumm, pause;
- cur_jiffies = jiffies64_to_cputime64(get_jiffies_64());
- total_ticks = (unsigned int) (cur_jiffies - rcpu->prev_wall);
- rcpu->prev_wall = cur_jiffies;
+ cur_nsecs = jiffies64_to_nsecs(get_jiffies_64());
+ total_nsecs = cur_nsecs - rcpu->prev_wall;
+ rcpu->prev_wall = cur_nsecs;
- total_idle_ticks = get_cpu_idle_time(cpu);
- idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle);
- idle_ticks = min(idle_ticks, total_ticks);
- rcpu->prev_idle = total_idle_ticks;
+ total_idle_nsecs = get_cpu_idle_time(cpu);
+ idle_nsecs = total_idle_nsecs - rcpu->prev_idle;
+ idle_nsecs = min(idle_nsecs, total_nsecs);
+ rcpu->prev_idle = total_idle_nsecs;
/* We do a very dumb calculation to update the LEDs for now,
* we'll do better once we have actual PWM implemented
*/
- load = (9 * (total_ticks - idle_ticks)) / total_ticks;
+ load = div64_u64(9 * (total_nsecs - idle_nsecs), total_nsecs);
offset = cpu << 3;
cumm = 0;
@@ -278,7 +278,7 @@ static void rackmeter_init_cpu_sniffer(struct rackmeter *rm)
continue;
rcpu = &rm->cpu[cpu];
rcpu->prev_idle = get_cpu_idle_time(cpu);
- rcpu->prev_wall = jiffies64_to_cputime64(get_jiffies_64());
+ rcpu->prev_wall = jiffies64_to_nsecs(get_jiffies_64());
schedule_delayed_work_on(cpu, &rm->cpu[cpu].sniffer,
msecs_to_jiffies(CPU_SAMPLING_RATE));
}