.engine_fini = gk104_fifo_gpfifo_engine_fini,
};
-int
-gk104_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
- void *data, u32 size, struct nvkm_object **pobject)
+struct gk104_fifo_chan_func {
+ u32 engine;
+ u64 subdev;
+};
+
+static int
+gk104_fifo_gpfifo_new_(const struct gk104_fifo_chan_func *func,
+ struct gk104_fifo *fifo, u32 *engmask, u16 *chid,
+ u64 vm, u64 ioffset, u64 ilength,
+ const struct nvkm_oclass *oclass,
+ struct nvkm_object **pobject)
{
- union {
- struct kepler_channel_gpfifo_a_v0 v0;
- } *args = data;
- struct gk104_fifo *fifo = gk104_fifo(base);
struct nvkm_device *device = fifo->base.engine.subdev.device;
- struct nvkm_object *parent = oclass->parent;
struct gk104_fifo_chan *chan;
- u64 usermem, ioffset, ilength;
- u32 engines;
- int ret = -ENOSYS, i;
-
- nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
- if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
- nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx "
- "ioffset %016llx ilength %08x engine %08x\n",
- args->v0.version, args->v0.vm, args->v0.ioffset,
- args->v0.ilength, args->v0.engine);
- } else
- return ret;
-
- /* determine which downstream engines are present */
- for (i = 0, engines = 0; i < fifo->runlist_nr; i++) {
- u64 subdevs = gk104_fifo_engine_subdev(i);
- if (!nvkm_device_engine(device, __ffs64(subdevs)))
- continue;
- engines |= (1 << i);
+ int runlist = -1, ret = -ENOSYS, i, j;
+ u32 engines = 0, present = 0;
+ u64 subdevs = 0;
+ u64 usermem;
+
+ /* Determine which downstream engines are present */
+ for (i = 0; i < fifo->engine_nr; i++) {
+ struct nvkm_engine *engine = fifo->engine[i].engine;
+ if (engine) {
+ u64 submask = BIT_ULL(engine->subdev.index);
+ for (j = 0; func[j].subdev; j++) {
+ if (func[j].subdev & submask) {
+ present |= func[j].engine;
+ break;
+ }
+ }
+
+ if (!func[j].subdev)
+ continue;
+
+ if (runlist < 0 && (*engmask & present))
+ runlist = fifo->engine[i].runl;
+ if (runlist == fifo->engine[i].runl) {
+ engines |= func[j].engine;
+ subdevs |= func[j].subdev;
+ }
+ }
}
- /* if this is an engine mask query, we're done */
- if (!args->v0.engine) {
- args->v0.engine = engines;
+ /* Just an engine mask query? All done here! */
+ if (!*engmask) {
+ *engmask = present;
return nvkm_object_new(oclass, NULL, 0, pobject);
}
- /* check that we support a requested engine - note that the user
- * argument is a mask in order to allow the user to request (for
- * example) *any* copy engine, but doesn't matter which.
- */
- args->v0.engine &= engines;
- if (!args->v0.engine) {
- nvif_ioctl(parent, "no supported engine\n");
+ /* No runlist? No supported engines. */
+ *engmask = present;
+ if (runlist < 0)
return -ENODEV;
- }
+ *engmask = engines;
- /* allocate the channel */
+ /* Allocate the channel. */
if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
return -ENOMEM;
*pobject = &chan->base.object;
chan->fifo = fifo;
- chan->runl = __ffs(args->v0.engine);
+ chan->runl = runlist;
INIT_LIST_HEAD(&chan->head);
ret = nvkm_fifo_chan_ctor(&gk104_fifo_gpfifo_func, &fifo->base,
- 0x1000, 0x1000, true, args->v0.vm, 0,
- gk104_fifo_engine_subdev(chan->runl),
+ 0x1000, 0x1000, true, vm, 0, subdevs,
1, fifo->user.bar.offset, 0x200,
oclass, &chan->base);
if (ret)
return ret;
- args->v0.chid = chan->base.chid;
+ *chid = chan->base.chid;
- /* page directory */
+ /* Page directory. */
ret = nvkm_gpuobj_new(device, 0x10000, 0x1000, false, NULL, &chan->pgd);
if (ret)
return ret;
if (ret)
return ret;
- /* clear channel control registers */
+ /* Clear channel control registers. */
usermem = chan->base.chid * 0x200;
- ioffset = args->v0.ioffset;
- ilength = order_base_2(args->v0.ilength / 8);
+ ilength = order_base_2(ilength / 8);
nvkm_kmap(fifo->user.mem);
for (i = 0; i < 0x200; i += 4)
return 0;
}
+static const struct gk104_fifo_chan_func
+gk104_fifo_gpfifo[] = {
+ { NVA06F_V0_ENGINE_SW | NVA06F_V0_ENGINE_GR,
+ BIT_ULL(NVKM_ENGINE_SW) | BIT_ULL(NVKM_ENGINE_GR)
+ },
+ { NVA06F_V0_ENGINE_MSVLD , BIT_ULL(NVKM_ENGINE_MSVLD ) },
+ { NVA06F_V0_ENGINE_MSPDEC, BIT_ULL(NVKM_ENGINE_MSPDEC) },
+ { NVA06F_V0_ENGINE_MSPPP , BIT_ULL(NVKM_ENGINE_MSPPP ) },
+ { NVA06F_V0_ENGINE_MSENC , BIT_ULL(NVKM_ENGINE_MSENC ) },
+ { NVA06F_V0_ENGINE_CE0 , BIT_ULL(NVKM_ENGINE_CE0 ) },
+ { NVA06F_V0_ENGINE_CE1 , BIT_ULL(NVKM_ENGINE_CE1 ) },
+ { NVA06F_V0_ENGINE_CE2 , BIT_ULL(NVKM_ENGINE_CE2 ) },
+ {}
+};
+
+int
+gk104_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
+ void *data, u32 size, struct nvkm_object **pobject)
+{
+ struct nvkm_object *parent = oclass->parent;
+ union {
+ struct kepler_channel_gpfifo_a_v0 v0;
+ } *args = data;
+ struct gk104_fifo *fifo = gk104_fifo(base);
+ int ret = -ENOSYS;
+
+ nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
+ if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+ nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx "
+ "ioffset %016llx ilength %08x engine %08x\n",
+ args->v0.version, args->v0.vm, args->v0.ioffset,
+ args->v0.ilength, args->v0.engines);
+ return gk104_fifo_gpfifo_new_(gk104_fifo_gpfifo, fifo,
+ &args->v0.engines,
+ &args->v0.chid,
+ args->v0.vm,
+ args->v0.ioffset,
+ args->v0.ilength,
+ oclass, pobject);
+
+ }
+
+ return ret;
+}
+
const struct nvkm_fifo_chan_oclass
gk104_fifo_gpfifo_oclass = {
.base.oclass = KEPLER_CHANNEL_GPFIFO_A,
projects / platform / kernel / linux-rpi3.git / commitdiff