static int gk20a_scale_target(struct device *dev, unsigned long *freq,
u32 flags)
{
struct gk20a *g = get_gk20a(to_platform_device(dev));
struct gk20a_platform *platform = dev_get_drvdata(dev);
struct gk20a_scale_profile *profile = g->scale_profile;
unsigned long rounded_rate = gk20a_clk_round_rate(g, *freq);
if (gk20a_clk_get_rate(g) == rounded_rate)
*freq = rounded_rate;
else {
gk20a_clk_set_rate(g, rounded_rate);
*freq = gk20a_clk_get_rate(g);
}
/* postscale will only scale emc (dram clock) if evaluating
* gk20a_tegra_get_emc_rate() produces a new or different emc
* target because the load or_and gpufreq has changed */
if (platform->postscale)
platform->postscale(profile->pdev, rounded_rate);
return 0;
}
static int gk20a_scale_get_dev_status(struct device *dev,
struct devfreq_dev_status *stat)
{
struct gk20a *g = get_gk20a(to_platform_device(dev));
struct gk20a_scale_profile *profile = g->scale_profile;
/* Make sure there are correct values for the current frequency */
profile->dev_stat.current_frequency = gk20a_clk_get_rate(g);
/* Update load estimate */
update_load_estimate_gpmu(to_platform_device(dev));
/* Copy the contents of the current device status */
*stat = profile->dev_stat;
/* Finally, clear out the local values */
profile->dev_stat.total_time = 0;
profile->dev_stat.busy_time = 0;
return 0;
}
static int rate_get(void *data, u64 *val)
{
struct gk20a *g = (struct gk20a *)data;
*val = (u64)gk20a_clk_get_rate(g);
return 0;
}