Esempi in C++ (Cpp) per nvkm_dmaobj_create

Esempio n. 1

File: nv50.c Progetto: mikuhatsune001/linux2.6.32

static int
nv50_dmaobj_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
		 struct nouveau_oclass *oclass, void *data, u32 size,
		 struct nouveau_object **pobject)
{
	struct nouveau_dmaeng *dmaeng = (void *)engine;
	union {
		struct nv50_dma_v0 v0;
	} *args;
	struct nv50_dmaobj_priv *priv;
	u32 user, part, comp, kind;
	int ret;

	ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &priv);
	*pobject = nv_object(priv);
	if (ret)
		return ret;
	args = data;

	nv_ioctl(parent, "create nv50 dma size %d\n", size);
	if (nvif_unpack(args->v0, 0, 0, false)) {
		nv_ioctl(parent, "create nv50 dma vers %d priv %d part %d "
				 "comp %d kind %02x\n", args->v0.version,
			 args->v0.priv, args->v0.part, args->v0.comp,
			 args->v0.kind);
		user = args->v0.priv;
		part = args->v0.part;
		comp = args->v0.comp;
		kind = args->v0.kind;
	} else
	if (size == 0) {
		if (priv->base.target != NV_MEM_TARGET_VM) {
			user = NV50_DMA_V0_PRIV_US;
			part = NV50_DMA_V0_PART_256;
			comp = NV50_DMA_V0_COMP_NONE;
			kind = NV50_DMA_V0_KIND_PITCH;
		} else {
			user = NV50_DMA_V0_PRIV_VM;
			part = NV50_DMA_V0_PART_VM;
			comp = NV50_DMA_V0_COMP_VM;
			kind = NV50_DMA_V0_KIND_VM;
		}
	} else
		return ret;

	if (user > 2 || part > 2 || comp > 3 || kind > 0x7f)
		return -EINVAL;
	priv->flags0 = (comp << 29) | (kind << 22) | (user << 20);
	priv->flags5 = (part << 16);

	switch (priv->base.target) {
	case NV_MEM_TARGET_VM:
		priv->flags0 |= 0x00000000;
		break;
	case NV_MEM_TARGET_VRAM:
		priv->flags0 |= 0x00010000;
		break;
	case NV_MEM_TARGET_PCI:
		priv->flags0 |= 0x00020000;
		break;
	case NV_MEM_TARGET_PCI_NOSNOOP:
		priv->flags0 |= 0x00030000;
		break;
	default:
		return -EINVAL;
	}

	switch (priv->base.access) {
	case NV_MEM_ACCESS_VM:
		break;
	case NV_MEM_ACCESS_RO:
		priv->flags0 |= 0x00040000;
		break;
	case NV_MEM_ACCESS_WO:
	case NV_MEM_ACCESS_RW:
		priv->flags0 |= 0x00080000;
		break;
	default:
		return -EINVAL;
	}

	return dmaeng->bind(&priv->base, nv_object(priv), (void *)pobject);
}

Esempio n. 2

File: gf100.c Progetto: 168519/linux

static int
gf100_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
		  struct nvkm_oclass *oclass, void *data, u32 size,
		  struct nvkm_object **pobject)
{
	struct nvkm_dmaeng *dmaeng = (void *)engine;
	union {
		struct gf100_dma_v0 v0;
	} *args;
	struct gf100_dmaobj_priv *priv;
	u32 kind, user, unkn;
	int ret;

	ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &priv);
	*pobject = nv_object(priv);
	if (ret)
		return ret;
	args = data;

	nv_ioctl(parent, "create gf100 dma size %d\n", size);
	if (nvif_unpack(args->v0, 0, 0, false)) {
		nv_ioctl(parent, "create gf100 dma vers %d priv %d kind %02x\n",
			 args->v0.version, args->v0.priv, args->v0.kind);
		kind = args->v0.kind;
		user = args->v0.priv;
		unkn = 0;
	} else
	if (size == 0) {
		if (priv->base.target != NV_MEM_TARGET_VM) {
			kind = GF100_DMA_V0_KIND_PITCH;
			user = GF100_DMA_V0_PRIV_US;
			unkn = 2;
		} else {
			kind = GF100_DMA_V0_KIND_VM;
			user = GF100_DMA_V0_PRIV_VM;
			unkn = 0;
		}
	} else
		return ret;

	if (user > 2)
		return -EINVAL;
	priv->flags0 |= (kind << 22) | (user << 20);
	priv->flags5 |= (unkn << 16);

	switch (priv->base.target) {
	case NV_MEM_TARGET_VM:
		priv->flags0 |= 0x00000000;
		break;
	case NV_MEM_TARGET_VRAM:
		priv->flags0 |= 0x00010000;
		break;
	case NV_MEM_TARGET_PCI:
		priv->flags0 |= 0x00020000;
		break;
	case NV_MEM_TARGET_PCI_NOSNOOP:
		priv->flags0 |= 0x00030000;
		break;
	default:
		return -EINVAL;
	}

	switch (priv->base.access) {
	case NV_MEM_ACCESS_VM:
		break;
	case NV_MEM_ACCESS_RO:
		priv->flags0 |= 0x00040000;
		break;
	case NV_MEM_ACCESS_WO:
	case NV_MEM_ACCESS_RW:
		priv->flags0 |= 0x00080000;
		break;
	}

	return dmaeng->bind(&priv->base, nv_object(priv), (void *)pobject);
}