static ssize_t gk20a_load_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct platform_device *pdev = to_platform_device(dev);
struct gk20a *g = get_gk20a(pdev);
u32 busy_time;
ssize_t res;
int err;
if (!g->power_on) {
busy_time = 0;
} else {
err = gk20a_busy(g->dev);
if (err)
return err;
gk20a_pmu_load_update(g);
gk20a_pmu_load_norm(g, &busy_time);
gk20a_idle(g->dev);
}
res = snprintf(buf, PAGE_SIZE, "%u\n", busy_time);
return res;
}
static void update_load_estimate_gpmu(struct platform_device *pdev)
{
struct gk20a *g = get_gk20a(pdev);
struct gk20a_scale_profile *profile = g->scale_profile;
unsigned long dt;
u32 busy_time;
ktime_t t;
t = ktime_get();
dt = ktime_us_delta(t, profile->last_event_time);
profile->dev_stat.total_time = dt;
profile->last_event_time = t;
gk20a_pmu_load_norm(g, &busy_time);
profile->dev_stat.busy_time = (busy_time * dt) / 1000;
}
