static int adreno_drawctxt_wait_global(struct adreno_device *adreno_dev,
struct kgsl_context *context,
uint32_t timestamp, unsigned int timeout)
{
struct kgsl_device *device = &adreno_dev->dev;
struct adreno_context *drawctxt = ADRENO_CONTEXT(context);
int ret = 0;
/* Needs to hold the device mutex */
BUG_ON(!mutex_is_locked(&device->mutex));
if (!_kgsl_context_get(context)) {
ret = -EINVAL;
goto done;
}
/*
* If the context is invalid then return immediately - we may end up
* waiting for a timestamp that will never come
*/
if (drawctxt->state == ADRENO_CONTEXT_STATE_INVALID) {
kgsl_context_put(context);
goto done;
}
trace_adreno_drawctxt_wait_start(KGSL_MEMSTORE_GLOBAL, timestamp);
ret = kgsl_add_event(device, &device->global_events, timestamp,
global_wait_callback, (void *) drawctxt);
if (ret) {
kgsl_context_put(context);
goto done;
}
kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);
if (timeout) {
ret = (int) wait_event_timeout(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp),
msecs_to_jiffies(timeout));
if (ret == 0)
ret = -ETIMEDOUT;
else if (ret > 0)
ret = 0;
} else {
wait_event(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp));
}
kgsl_mutex_lock(&device->mutex, &device->mutex_owner);
if (ret)
kgsl_cancel_events_timestamp(device, &device->global_events,
timestamp);
done:
trace_adreno_drawctxt_wait_done(KGSL_MEMSTORE_GLOBAL, timestamp, ret);
return ret;
}
int adreno_drawctxt_wait_global(struct adreno_device *adreno_dev,
struct kgsl_context *context,
uint32_t timestamp, unsigned int timeout)
{
struct kgsl_device *device = &adreno_dev->dev;
struct adreno_context *drawctxt = ADRENO_CONTEXT(context);
int ret = 0;
BUG_ON(!mutex_is_locked(&device->mutex));
if (!_kgsl_context_get(context)) {
ret = -EINVAL;
goto done;
}
if (drawctxt->state == ADRENO_CONTEXT_STATE_INVALID) {
kgsl_context_put(context);
goto done;
}
trace_adreno_drawctxt_wait_start(KGSL_MEMSTORE_GLOBAL, timestamp);
ret = kgsl_add_event(device, KGSL_MEMSTORE_GLOBAL, timestamp,
global_wait_callback, drawctxt, NULL);
if (ret) {
kgsl_context_put(context);
goto done;
}
mutex_unlock(&device->mutex);
if (timeout) {
ret = (int) wait_event_timeout(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp),
msecs_to_jiffies(timeout));
if (ret == 0)
ret = -ETIMEDOUT;
else if (ret > 0)
ret = 0;
} else {
wait_event(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp));
}
mutex_lock(&device->mutex);
if (ret)
kgsl_cancel_events_timestamp(device, NULL, timestamp);
done:
trace_adreno_drawctxt_wait_done(KGSL_MEMSTORE_GLOBAL, timestamp, ret);
return ret;
}
