drm/nouveau/fifo/gv100: return work submission token in channel ctor args

The token will also contain runlist ID on Turing, so instead expose it as
an opaque value from NVKM so the client doesn't need to care.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

3 files changed, 25 insertions, 11 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h
index 3ffef236189e..2c7c5afc1ea5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h
@@ -17,6 +17,7 @@ struct nvkm_fifo_chan_func {
 			    bool suspend);
 	int  (*object_ctor)(struct nvkm_fifo_chan *, struct nvkm_object *);
 	void (*object_dtor)(struct nvkm_fifo_chan *, int);
+	u32 (*submit_token)(struct nvkm_fifo_chan *);
 };
 
 int nvkm_fifo_chan_ctor(const struct nvkm_fifo_chan_func *, struct nvkm_fifo *,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h
index 68df966205d0..f041aa281d9d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h
@@ -38,4 +38,8 @@ int gk104_fifo_gpfifo_kick_locked(struct gk104_fifo_chan *);
 
 int gv100_fifo_gpfifo_new(struct gk104_fifo *, const struct nvkm_oclass *,
 			  void *data, u32 size, struct nvkm_object **);
+int gv100_fifo_gpfifo_new_(const struct nvkm_fifo_chan_func *,
+			   struct gk104_fifo *, u64 *, u16 *, u64, u64, u64,
+			   u64 *, bool, u32 *, const struct nvkm_oclass *,
+			   struct nvkm_object **);
 #endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogv100.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogv100.c
index ad5d119f6a36..386dcf7420ad 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogv100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogv100.c
@@ -25,9 +25,15 @@
 #include <core/client.h>
 #include <core/gpuobj.h>
 
-#include <nvif/cla06f.h>
+#include <nvif/clc36f.h>
 #include <nvif/unpack.h>
 
+static u32
+gv100_fifo_gpfifo_submit_token(struct nvkm_fifo_chan *chan)
+{
+	return chan->chid;
+}
+
 static int
 gv100_fifo_gpfifo_engine_valid(struct gk104_fifo_chan *chan, bool ce, bool valid)
 {
@@ -100,8 +106,8 @@ gv100_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base,
 	return gv100_fifo_gpfifo_engine_valid(chan, false, true);
 }
 
-const struct nvkm_fifo_chan_func
-gv100_fifo_gpfifo_func = {
+static const struct nvkm_fifo_chan_func
+gv100_fifo_gpfifo = {
 	.dtor = gk104_fifo_gpfifo_dtor,
 	.init = gk104_fifo_gpfifo_init,
 	.fini = gk104_fifo_gpfifo_fini,
@@ -110,12 +116,14 @@ gv100_fifo_gpfifo_func = {
 	.engine_dtor = gk104_fifo_gpfifo_engine_dtor,
 	.engine_init = gv100_fifo_gpfifo_engine_init,
 	.engine_fini = gv100_fifo_gpfifo_engine_fini,
+	.submit_token = gv100_fifo_gpfifo_submit_token,
 };
 
-static int
-gv100_fifo_gpfifo_new_(struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
+int
+gv100_fifo_gpfifo_new_(const struct nvkm_fifo_chan_func *func,
+		       struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
 		       u64 vmm, u64 ioffset, u64 ilength, u64 *inst, bool priv,
-		       const struct nvkm_oclass *oclass,
+		       u32 *token, const struct nvkm_oclass *oclass,
 		       struct nvkm_object **pobject)
 {
 	struct nvkm_device *device = fifo->base.engine.subdev.device;
@@ -144,15 +152,15 @@ gv100_fifo_gpfifo_new_(struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
 	chan->runl = runlist;
 	INIT_LIST_HEAD(&chan->head);
 
-	ret = nvkm_fifo_chan_ctor(&gv100_fifo_gpfifo_func, &fifo->base,
-				  0x1000, 0x1000, true, vmm, 0, subdevs,
-				  1, fifo->user.bar->addr, 0x200,
+	ret = nvkm_fifo_chan_ctor(func, &fifo->base, 0x1000, 0x1000, true, vmm,
+				  0, subdevs, 1, fifo->user.bar->addr, 0x200,
 				  oclass, &chan->base);
 	if (ret)
 		return ret;
 
 	*chid = chan->base.chid;
 	*inst = chan->base.inst->addr;
+	*token = chan->base.func->submit_token(&chan->base);
 
 	/* Hack to support GPUs where even individual channels should be
 	 * part of a channel group.
@@ -218,7 +226,7 @@ gv100_fifo_gpfifo_new(struct gk104_fifo *fifo, const struct nvkm_oclass *oclass,
 {
 	struct nvkm_object *parent = oclass->parent;
 	union {
-		struct kepler_channel_gpfifo_a_v0 v0;
+		struct volta_channel_gpfifo_a_v0 v0;
 	} *args = data;
 	int ret = -ENOSYS;
 
@@ -231,7 +239,7 @@ gv100_fifo_gpfifo_new(struct gk104_fifo *fifo, const struct nvkm_oclass *oclass,
 			   args->v0.ilength, args->v0.runlist, args->v0.priv);
 		if (args->v0.priv && !oclass->client->super)
 			return -EINVAL;
-		return gv100_fifo_gpfifo_new_(fifo,
+		return gv100_fifo_gpfifo_new_(&gv100_fifo_gpfifo, fifo,
 					      &args->v0.runlist,
 					      &args->v0.chid,
 					       args->v0.vmm,
@@ -239,6 +247,7 @@ gv100_fifo_gpfifo_new(struct gk104_fifo *fifo, const struct nvkm_oclass *oclass,
 					       args->v0.ilength,
 					      &args->v0.inst,
 					       args->v0.priv,
+					      &args->v0.token,
 					      oclass, pobject);
 	}