const struct nvkm_pm_func *func;
struct nvkm_engine engine;
- struct nvkm_object *perfmon;
+ struct {
+ spinlock_t lock;
+ struct nvkm_object *object;
+ } client;
struct list_head domains;
struct list_head sources;
{
struct nvkm_perfmon *perfmon = nvkm_perfmon(object);
struct nvkm_pm *pm = perfmon->pm;
- mutex_lock(&pm->engine.subdev.mutex);
- if (pm->perfmon == &perfmon->object)
- pm->perfmon = NULL;
- mutex_unlock(&pm->engine.subdev.mutex);
+ spin_lock(&pm->client.lock);
+ if (pm->client.object == &perfmon->object)
+ pm->client.object = NULL;
+ spin_unlock(&pm->client.lock);
return perfmon;
}
if (ret)
return ret;
- mutex_lock(&pm->engine.subdev.mutex);
- if (pm->perfmon == NULL)
- pm->perfmon = *pobject;
- ret = (pm->perfmon == *pobject) ? 0 : -EBUSY;
- mutex_unlock(&pm->engine.subdev.mutex);
+ spin_lock(&pm->client.lock);
+ if (pm->client.object == NULL)
+ pm->client.object = *pobject;
+ ret = (pm->client.object == *pobject) ? 0 : -EBUSY;
+ spin_unlock(&pm->client.lock);
return ret;
}
pm->func = func;
INIT_LIST_HEAD(&pm->domains);
INIT_LIST_HEAD(&pm->sources);
+ spin_lock_init(&pm->client.lock);
return nvkm_engine_ctor(&nvkm_pm, device, index, true, &pm->engine);
}