void kgsl_pre_hwaccess(struct kgsl_device *device)
{
BUG_ON(!mutex_is_locked(&device->mutex));
switch (device->state) {
case KGSL_STATE_ACTIVE:
return;
case KGSL_STATE_NAP:
case KGSL_STATE_SLEEP:
case KGSL_STATE_SLUMBER:
kgsl_pwrctrl_wake(device);
break;
case KGSL_STATE_SUSPEND:
kgsl_check_suspended(device);
break;
case KGSL_STATE_INIT:
case KGSL_STATE_HUNG:
case KGSL_STATE_DUMP_AND_RECOVER:
if (test_bit(KGSL_PWRFLAGS_CLK_ON,
&device->pwrctrl.power_flags))
break;
else
KGSL_PWR_ERR(device,
"hw access while clocks off from state %d\n",
device->state);
break;
default:
KGSL_PWR_ERR(device, "hw access while in unknown state %d\n",
device->state);
break;
}
}
void kgsl_pre_hwaccess(struct kgsl_device *device)
{
BUG_ON(!mutex_is_locked(&device->mutex));
if (device->state & (KGSL_STATE_SLEEP | KGSL_STATE_NAP |
KGSL_STATE_SLUMBER))
kgsl_pwrctrl_wake(device);
}
void kgsl_check_suspended(struct kgsl_device *device)
{
if (device->requested_state == KGSL_STATE_SUSPEND ||
device->state == KGSL_STATE_SUSPEND) {
mutex_unlock(&device->mutex);
wait_for_completion(&device->hwaccess_gate);
mutex_lock(&device->mutex);
} else if (device->state == KGSL_STATE_DUMP_AND_RECOVER) {
mutex_unlock(&device->mutex);
wait_for_completion(&device->recovery_gate);
mutex_lock(&device->mutex);
} else if (device->state == KGSL_STATE_SLUMBER)
kgsl_pwrctrl_wake(device);
}
void kgsl_pre_hwaccess(struct kgsl_device *device)
{
if (device->state & (KGSL_STATE_SLEEP | KGSL_STATE_NAP))
kgsl_pwrctrl_wake(device);
}