diff --git a/drivers/gpu/msm/adreno.c b/drivers/gpu/msm/adreno.c index 94d828027f20..9940f7a7c2b7 100644 --- a/drivers/gpu/msm/adreno.c +++ b/drivers/gpu/msm/adreno.c @@ -1961,7 +1961,7 @@ static int adreno_setproperty(struct kgsl_device_private *dev_priv, KGSL_STATE_ACTIVE); device->pwrctrl.ctrl_flags = KGSL_PWR_ON; adreno_fault_detect_stop(adreno_dev); - kgsl_pwrscale_disable(device); + kgsl_pwrscale_disable(device, true); } mutex_unlock(&device->mutex); diff --git a/drivers/gpu/msm/kgsl_pwrctrl.c b/drivers/gpu/msm/kgsl_pwrctrl.c index d71c6a63f2d3..172de7406c26 100644 --- a/drivers/gpu/msm/kgsl_pwrctrl.c +++ b/drivers/gpu/msm/kgsl_pwrctrl.c @@ -1387,6 +1387,47 @@ done: return 0; } +static ssize_t kgsl_pwrctrl_pwrscale_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct kgsl_device *device = kgsl_device_from_dev(dev); + int ret; + unsigned int enable = 0; + + if (device == NULL) + return 0; + + ret = kgsl_sysfs_store(buf, &enable); + if (ret) + return ret; + + mutex_lock(&device->mutex); + + if (enable) + kgsl_pwrscale_enable(device); + else + kgsl_pwrscale_disable(device, false); + + mutex_unlock(&device->mutex); + + return count; +} + +static ssize_t kgsl_pwrctrl_pwrscale_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct kgsl_device *device = kgsl_device_from_dev(dev); + struct kgsl_pwrscale *psc; + + if (device == NULL) + return 0; + psc = &device->pwrscale; + + return snprintf(buf, PAGE_SIZE, "%u\n", psc->enabled); +} + static DEVICE_ATTR(gpuclk, 0644, kgsl_pwrctrl_gpuclk_show, kgsl_pwrctrl_gpuclk_store); static DEVICE_ATTR(max_gpuclk, 0644, kgsl_pwrctrl_max_gpuclk_show, @@ -1449,6 +1490,9 @@ static DEVICE_ATTR(clock_mhz, 0444, kgsl_pwrctrl_clock_mhz_show, NULL); static DEVICE_ATTR(freq_table_mhz, 0444, kgsl_pwrctrl_freq_table_mhz_show, NULL); static DEVICE_ATTR(temp, 0444, kgsl_pwrctrl_temp_show, NULL); +static DEVICE_ATTR(pwrscale, 0644, + kgsl_pwrctrl_pwrscale_show, + kgsl_pwrctrl_pwrscale_store); static const struct device_attribute *pwrctrl_attr_list[] = { &dev_attr_gpuclk, @@ -1477,6 +1521,7 @@ static const struct device_attribute *pwrctrl_attr_list[] = { &dev_attr_clock_mhz, &dev_attr_freq_table_mhz, &dev_attr_temp, + &dev_attr_pwrscale, NULL }; diff --git a/drivers/gpu/msm/kgsl_pwrscale.c b/drivers/gpu/msm/kgsl_pwrscale.c index 01d3b74c16fd..85cd29b5364e 100644 --- a/drivers/gpu/msm/kgsl_pwrscale.c +++ b/drivers/gpu/msm/kgsl_pwrscale.c @@ -189,19 +189,21 @@ EXPORT_SYMBOL(kgsl_pwrscale_update); /* * kgsl_pwrscale_disable - temporarily disable the governor * @device: The device + * @turbo: Indicates if pwrlevel should be forced to turbo * * Temporarily disable the governor, to prevent interference * with profiling tools that expect a fixed clock frequency. * This function must be called with the device mutex locked. */ -void kgsl_pwrscale_disable(struct kgsl_device *device) +void kgsl_pwrscale_disable(struct kgsl_device *device, bool turbo) { BUG_ON(!mutex_is_locked(&device->mutex)); if (device->pwrscale.devfreqptr) queue_work(device->pwrscale.devfreq_wq, &device->pwrscale.devfreq_suspend_ws); device->pwrscale.enabled = false; - kgsl_pwrctrl_pwrlevel_change(device, KGSL_PWRLEVEL_TURBO); + if (turbo) + kgsl_pwrctrl_pwrlevel_change(device, KGSL_PWRLEVEL_TURBO); } EXPORT_SYMBOL(kgsl_pwrscale_disable); diff --git a/drivers/gpu/msm/kgsl_pwrscale.h b/drivers/gpu/msm/kgsl_pwrscale.h index c85317869f1d..0756a4490f22 100644 --- a/drivers/gpu/msm/kgsl_pwrscale.h +++ b/drivers/gpu/msm/kgsl_pwrscale.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved. +/* Copyright (c) 2010-2016, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -123,7 +123,7 @@ void kgsl_pwrscale_sleep(struct kgsl_device *device); void kgsl_pwrscale_wake(struct kgsl_device *device); void kgsl_pwrscale_enable(struct kgsl_device *device); -void kgsl_pwrscale_disable(struct kgsl_device *device); +void kgsl_pwrscale_disable(struct kgsl_device *device, bool turbo); int kgsl_devfreq_target(struct device *dev, unsigned long *freq, u32 flags); int kgsl_devfreq_get_dev_status(struct device *, struct devfreq_dev_status *);