static int pm_callback_runtime_on(kbase_device *kbdev)
{
kbase_platform_clock_on(kbdev);
#ifdef CONFIG_MALI_T6XX_DVFS
//if (kbase_platform_dvfs_enable(true, MALI_DVFS_START_FREQ)!= MALI_TRUE)
// return -EPERM;
#endif
return 0;
}
static int pm_callback_runtime_on(kbase_device *kbdev)
{
int ret;
struct clk *mout_vpll = NULL, *aclk_g3d_sw = NULL, *aclk_g3d_dout = NULL;
struct device *dev = kbdev->osdev.dev;
struct exynos_context * platform = (struct exynos_context *) kbdev->platform_context;
sec_debug_aux_log(SEC_DEBUG_AUXLOG_CPU_BUS_CLOCK_CHANGE,
"g3d turn on++++");
kbase_platform_clock_on(kbdev);
#ifdef CONFIG_MALI_T6XX_DVFS
//if (kbase_platform_dvfs_enable(true, MALI_DVFS_START_FREQ) != MALI_TRUE)
// return -EPERM;
#endif
mout_vpll = clk_get(dev, "mout_vpll");
if (IS_ERR(mout_vpll)) {
KBASE_DEBUG_PRINT_ERROR(KBASE_CORE, "failed to clk_get [mout_vpll]\n");
return 0;
}
aclk_g3d_dout = clk_get(dev, "aclk_g3d_dout");
if (IS_ERR(aclk_g3d_dout)) {
KBASE_DEBUG_PRINT_ERROR(KBASE_CORE, "failed to clk_get [aclk_g3d_dout]\n");
return 0;
}
aclk_g3d_sw = clk_get(dev, "aclk_g3d_sw");
if (IS_ERR(aclk_g3d_sw)) {
KBASE_DEBUG_PRINT_ERROR(KBASE_CORE, "failed to clk_get [aclk_g3d_sw]\n");
return 0;
}
ret = clk_set_parent(platform->aclk_g3d, aclk_g3d_sw);
if (ret < 0) {
KBASE_DEBUG_PRINT_ERROR(KBASE_CORE, "failed to clk_set_parent [platform->aclk_g3d]\n");
return 0;
}
ret = clk_set_parent(aclk_g3d_sw, aclk_g3d_dout);
if (ret < 0) {
KBASE_DEBUG_PRINT_ERROR(KBASE_CORE, "failed to clk_set_parent [aclk_g3d_sw]\n");
return 0;
}
ret = clk_set_parent(aclk_g3d_dout, mout_vpll);
if (ret < 0) {
KBASE_DEBUG_PRINT_ERROR(KBASE_CORE, "failed to clk_set_parent [aclk_g3d_dout]\n");
return 0;
}
sec_debug_aux_log(SEC_DEBUG_AUXLOG_CPU_BUS_CLOCK_CHANGE,
"g3d turn on---");
return 0;
}
static int pm_callback_runtime_on(kbase_device *kbdev)
{
#ifdef CONFIG_MALI_T6XX_DVFS
struct exynos_context *platform = (struct exynos_context *)kbdev->platform_context;
#endif
kbase_platform_clock_on(kbdev);
#ifdef CONFIG_MALI_T6XX_DVFS
if (platform->dvfs_enabled) {
if (kbase_platform_dvfs_enable(true, MALI_DVFS_START_FREQ)!= MALI_TRUE)
return -EPERM;
} else {
if (kbase_platform_dvfs_enable(false, MALI_DVFS_CURRENT_FREQ)!= MALI_TRUE)
return -EPERM;
}
#endif
return 0;
}
void kbase_device_runtime_get_sync(struct device *dev)
{
int result;
struct kbase_device *kbdev;
struct exynos_context *platform;
kbdev = dev_get_drvdata(dev);
platform = (struct exynos_context *) kbdev->platform_context;
if(!platform)
return;
/********************************************
*
* This is workaround about occurred kernel panic when you turn off the system.
*
* System kernel will call the "__pm_runtime_disable" when you turn off the system.
* After that function, System kernel do not run the runtimePM API more.
*
* So, this code is check the "dev->power.disable_depth" value is not zero.
*
********************************************/
if(dev->power.disable_depth > 0) {
if(platform->cmu_pmu_status == 0)
kbase_platform_cmu_pmu_control(kbdev, 1);
return;
}
if(delayed_work_pending(&kbdev->runtime_pm_workqueue)) {
cancel_delayed_work_sync(&kbdev->runtime_pm_workqueue);
}
mutex_lock(&runtime_pm_lock);
kbase_platform_clock_on(kbdev);
pm_runtime_get_noresume(dev);
result = pm_runtime_resume(dev);
mutex_unlock(&runtime_pm_lock);
#if MALI_GATOR_SUPPORT
kbase_trace_mali_timeline_event(GATOR_MAKE_EVENT(ACTIVITY_RTPM_CHANGED, ACTIVITY_RTPM) | 1);
#endif
#if MALI_RTPM_DEBUG
printk( "kbase_device_runtime_get_sync, usage_count=%d\n", atomic_read(&dev->power.usage_count));
#endif
/********************************************
*
* This check is re-confirm about maybe context switch by another cpu when turn off the system.
*
* runtimePM put_sync -------- runtimePM get_sync -------- runtimePM put_sync : CPU 0
* \
* \ ( context running by another core. )
* \
* - (turn off the system) runtimePM disable : CPU 1
* \
* \
* => do not success implement runtimePM API
********************************************/
if(result < 0 && result == -EAGAIN)
kbase_platform_cmu_pmu_control(kbdev, 1);
else if(result < 0)
printk(KERN_ERR "pm_runtime_get_sync failed (%d)\n", result);
}
