Esempi in C++ (Cpp) per nvkm_device_engine

Esempio n. 1

File: user.c Progetto: AK101111/linux

static int
nvkm_udevice_child_get(struct nvkm_object *object, int index,
		       struct nvkm_oclass *oclass)
{
	struct nvkm_udevice *udev = nvkm_udevice(object);
	struct nvkm_device *device = udev->device;
	struct nvkm_engine *engine;
	u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
		   (1ULL << NVKM_ENGINE_FIFO) |
		   (1ULL << NVKM_ENGINE_DISP) |
		   (1ULL << NVKM_ENGINE_PM);
	const struct nvkm_device_oclass *sclass = NULL;
	int i;

	for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
		if (!(engine = nvkm_device_engine(device, i)) ||
		    !(engine->func->base.sclass))
			continue;
		oclass->engine = engine;

		index -= engine->func->base.sclass(oclass, index, &sclass);
	}

	if (!sclass) {
		switch (index) {
		case 0: sclass = &nvkm_control_oclass; break;
		default:
			return -EINVAL;
		}
		oclass->base = sclass->base;
	}

	oclass->ctor = nvkm_udevice_child_new;
	oclass->priv = sclass;
	return 0;
}

Esempio n. 2

File: channv50.c Progetto: krzk/linux

static int
nv50_disp_chan_child_get(struct nvkm_object *object, int index,
			 struct nvkm_oclass *sclass)
{
	struct nv50_disp_chan *chan = nv50_disp_chan(object);
	struct nvkm_device *device = chan->disp->base.engine.subdev.device;
	const struct nvkm_device_oclass *oclass = NULL;

	if (chan->func->bind)
		sclass->engine = nvkm_device_engine(device, NVKM_ENGINE_DMAOBJ);
	else
		sclass->engine = NULL;

	if (sclass->engine && sclass->engine->func->base.sclass) {
		sclass->engine->func->base.sclass(sclass, index, &oclass);
		if (oclass) {
			sclass->ctor = nv50_disp_chan_child_new,
			sclass->priv = oclass;
			return 0;
		}
	}

	return -EINVAL;
}