drm/nouveau/fifo/gk104-: return channel instance in ctor args

Will be used to match fault buffer entries with a channel.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvif/cla06f.h

@@ -10,6 +10,7 @@ struct kepler_channel_gpfifo_a_v0 {
 	__u64 ioffset;
 	__u64 runlist;
 	__u64 vmm;
+	__u64 inst;
 };
 
 #define NVA06F_V0_NTFY_NON_STALL_INTERRUPT                                 0x00

drivers/gpu/drm/nouveau/nouveau_chan.c

@@ -273,13 +273,15 @@ nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
 		ret = nvif_object_init(&device->object, 0, *oclass++,
 				       &args, size, &chan->user);
 		if (ret == 0) {
-			if (chan->user.oclass >= KEPLER_CHANNEL_GPFIFO_A)
+			if (chan->user.oclass >= KEPLER_CHANNEL_GPFIFO_A) {
 				chan->chid = args.kepler.chid;
-			else
-			if (chan->user.oclass >= FERMI_CHANNEL_GPFIFO)
+				chan->inst = args.kepler.inst;
+			} else
+			if (chan->user.oclass >= FERMI_CHANNEL_GPFIFO) {
 				chan->chid = args.fermi.chid;
-			else
+			} else {
 				chan->chid = args.nv50.chid;
+			}
 			return ret;
 		}
 	} while (*oclass);

drivers/gpu/drm/nouveau/nouveau_chan.h

@@ -10,6 +10,7 @@ struct nouveau_channel {
 	struct nouveau_drm *drm;
 
 	int chid;
+	u64 inst;
 
 	struct nvif_object vram;
 	struct nvif_object gart;

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c

@@ -240,7 +240,7 @@ gk104_fifo_gpfifo_func = {
 
 static int
 gk104_fifo_gpfifo_new_(struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
-		       u64 vmm, u64 ioffset, u64 ilength,
+		       u64 vmm, u64 ioffset, u64 ilength, u64 *inst,
 		       const struct nvkm_oclass *oclass,
 		       struct nvkm_object **pobject)
 {
@@ -279,6 +279,7 @@ gk104_fifo_gpfifo_new_(struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
 		return ret;
 
 	*chid = chan->base.chid;
+	*inst = chan->base.inst->addr;
 
 	/* Hack to support GPUs where even individual channels should be
 	 * part of a channel group.
@@ -346,6 +347,7 @@ gk104_fifo_gpfifo_new(struct gk104_fifo *fifo, const struct nvkm_oclass *oclass,
 					       args->v0.vmm,
 					       args->v0.ioffset,
 					       args->v0.ilength,
+					      &args->v0.inst,
 					      oclass, pobject);
 	}
 

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogv100.c

@@ -114,7 +114,7 @@ gv100_fifo_gpfifo_func = {
 
 static int
 gv100_fifo_gpfifo_new_(struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
-		       u64 vmm, u64 ioffset, u64 ilength,
+		       u64 vmm, u64 ioffset, u64 ilength, u64 *inst,
 		       const struct nvkm_oclass *oclass,
 		       struct nvkm_object **pobject)
 {
@@ -150,6 +150,7 @@ gv100_fifo_gpfifo_new_(struct gk104_fifo *fifo, u64 *runlists, u16 *chid,
 		return ret;
 
 	*chid = chan->base.chid;
+	*inst = chan->base.inst->addr;
 
 	/* Hack to support GPUs where even individual channels should be
 	 * part of a channel group.
@@ -218,6 +219,7 @@ gv100_fifo_gpfifo_new(struct gk104_fifo *fifo, const struct nvkm_oclass *oclass,
 					       args->v0.vmm,
 					       args->v0.ioffset,
 					       args->v0.ilength,
+					      &args->v0.inst,
 					      oclass, pobject);
 	}