drm/nouveau/fifo: add chan bind()/unbind()

- stops programming (non-existent) runl id field on bind(), from maxwell
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h

@@ -16,6 +16,9 @@ struct nvkm_cctx {
 };
 
 struct nvkm_chan_func {
+	void (*bind)(struct nvkm_chan *);
+	void (*unbind)(struct nvkm_chan *);
+
 	void *(*dtor)(struct nvkm_fifo_chan *);
 	void (*init)(struct nvkm_fifo_chan *);
 	void (*fini)(struct nvkm_fifo_chan *);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/chang84.c

@@ -166,23 +166,10 @@ g84_fifo_chan_object_ctor(struct nvkm_fifo_chan *base,
 	return nvkm_ramht_insert(chan->ramht, object, 0, 4, handle, context);
 }
 
-static void
-g84_fifo_chan_init(struct nvkm_fifo_chan *base)
-{
-	struct nv50_fifo_chan *chan = nv50_fifo_chan(base);
-	struct nv50_fifo *fifo = chan->fifo;
-	struct nvkm_device *device = fifo->base.engine.subdev.device;
-	u64 addr = chan->ramfc->addr >> 8;
-	u32 chid = chan->base.chid;
-
-	nvkm_wr32(device, 0x002600 + (chid * 4), 0x80000000 | addr);
-	nv50_fifo_runlist_update(fifo);
-}
-
 static const struct nvkm_fifo_chan_func
 g84_fifo_chan_func = {
 	.dtor = nv50_fifo_chan_dtor,
-	.init = g84_fifo_chan_init,
+	.init = nv50_fifo_chan_init,
 	.fini = nv50_fifo_chan_fini,
 	.engine_ctor = g84_fifo_chan_engine_ctor,
 	.engine_dtor = nv50_fifo_chan_engine_dtor,

drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.c

@@ -194,19 +194,17 @@ nv50_fifo_chan_fini(struct nvkm_fifo_chan *base)
 	/* remove channel from runlist, fifo will unload context */
 	nvkm_mask(device, 0x002600 + (chid * 4), 0x80000000, 0x00000000);
 	nv50_fifo_runlist_update(fifo);
-	nvkm_wr32(device, 0x002600 + (chid * 4), 0x00000000);
 }
 
-static void
+void
 nv50_fifo_chan_init(struct nvkm_fifo_chan *base)
 {
 	struct nv50_fifo_chan *chan = nv50_fifo_chan(base);
 	struct nv50_fifo *fifo = chan->fifo;
 	struct nvkm_device *device = fifo->base.engine.subdev.device;
-	u64 addr = chan->ramfc->addr >> 12;
 	u32 chid = chan->base.chid;
 
-	nvkm_wr32(device, 0x002600 + (chid * 4), 0x80000000 | addr);
+	nvkm_mask(device, 0x002600 + (chid * 4), 0x80000000, 0x80000000);
 	nv50_fifo_runlist_update(fifo);
 }
 

drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.h

@@ -40,6 +40,7 @@ struct nv50_fifo_chan {
 int nv50_fifo_chan_ctor(struct nv50_fifo *, u64 vmm, u64 push,
 			const struct nvkm_oclass *, struct nv50_fifo_chan *);
 void *nv50_fifo_chan_dtor(struct nvkm_fifo_chan *);
+void nv50_fifo_chan_init(struct nvkm_fifo_chan *);
 void nv50_fifo_chan_fini(struct nvkm_fifo_chan *);
 struct nvkm_gpuobj **nv50_fifo_chan_engine(struct nv50_fifo_chan *, struct nvkm_engine *);
 void nv50_fifo_chan_engine_dtor(struct nvkm_fifo_chan *, struct nvkm_engine *);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/g84.c

@@ -21,16 +21,29 @@
  *
  * Authors: Ben Skeggs
  */
+#include "cgrp.h"
 #include "chan.h"
 #include "runl.h"
 
+#include <core/gpuobj.h>
+
 #include "nv50.h"
 #include "channv50.h"
 
 #include <nvif/class.h>
 
+static void
+g84_chan_bind(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x002600 + (chan->id * 4), nv50_fifo_chan(chan)->ramfc->addr >> 8);
+}
+
 const struct nvkm_chan_func
 g84_chan = {
+	.bind = g84_chan_bind,
+	.unbind = nv50_chan_unbind,
 };
 
 const struct nvkm_engn_func

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c

@@ -21,6 +21,7 @@
  *
  * Authors: Ben Skeggs
  */
+#include "cgrp.h"
 #include "chan.h"
 #include "chid.h"
 #include "runl.h"
@@ -38,8 +39,32 @@
 
 #include <nvif/class.h>
 
+static void gf100_fifo_intr_engine(struct nvkm_fifo *);
+
+static void
+gf100_chan_unbind(struct nvkm_chan *chan)
+{
+	struct nvkm_fifo *fifo = chan->cgrp->runl->fifo;
+	struct nvkm_device *device = fifo->engine.subdev.device;
+
+	/*TODO: Is this cargo-culted, or necessary? RM does *something* here... Why? */
+	gf100_fifo_intr_engine(fifo);
+
+	nvkm_wr32(device, 0x003000 + (chan->id * 8), 0x00000000);
+}
+
+static void
+gf100_chan_bind(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x003000 + (chan->id * 8), 0xc0000000 | chan->inst->addr >> 12);
+}
+
 static const struct nvkm_chan_func
 gf100_chan = {
+	.bind = gf100_chan_bind,
+	.unbind = gf100_chan_unbind,
 };
 
 static const struct nvkm_engn_func
@@ -619,15 +644,15 @@ gf100_fifo_intr_engine_unit(struct nvkm_fifo *fifo, int engn)
 	}
 }
 
-void
-gf100_fifo_intr_engine(struct gf100_fifo *fifo)
+static void
+gf100_fifo_intr_engine(struct nvkm_fifo *fifo)
 {
-	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	struct nvkm_device *device = fifo->engine.subdev.device;
 	u32 mask = nvkm_rd32(device, 0x0025a4);
 
 	while (mask) {
 		u32 unit = __ffs(mask);
-		gf100_fifo_intr_engine_unit(&fifo->base, unit);
+		gf100_fifo_intr_engine_unit(fifo, unit);
 		mask &= ~(1 << unit);
 	}
 }
@@ -684,7 +709,7 @@ gf100_fifo_intr(struct nvkm_inth *inth)
 	}
 
 	if (stat & 0x80000000) {
-		gf100_fifo_intr_engine(gf100_fifo(fifo));
+		gf100_fifo_intr_engine(fifo);
 		stat &= ~0x80000000;
 	}
 

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.h

@@ -28,7 +28,6 @@ struct gf100_fifo {
 	} user;
 };
 
-void gf100_fifo_intr_engine(struct gf100_fifo *);
 void gf100_fifo_runlist_insert(struct gf100_fifo *, struct gf100_fifo_chan *);
 void gf100_fifo_runlist_remove(struct gf100_fifo *, struct gf100_fifo_chan *);
 void gf100_fifo_runlist_commit(struct gf100_fifo *);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c

@@ -38,8 +38,36 @@
 
 #include <nvif/class.h>
 
+void
+gk104_chan_unbind(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x800000 + (chan->id * 8), 0x00000000);
+}
+
+void
+gk104_chan_bind_inst(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x800000 + (chan->id * 8), 0x80000000 | chan->inst->addr >> 12);
+}
+
+void
+gk104_chan_bind(struct nvkm_chan *chan)
+{
+	struct nvkm_runl *runl = chan->cgrp->runl;
+	struct nvkm_device *device = runl->fifo->engine.subdev.device;
+
+	nvkm_mask(device, 0x800004 + (chan->id * 8), 0x000f0000, runl->id << 16);
+	gk104_chan_bind_inst(chan);
+}
+
 static const struct nvkm_chan_func
 gk104_chan = {
+	.bind = gk104_chan_bind,
+	.unbind = gk104_chan_unbind,
 };
 
 void

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c

@@ -35,6 +35,8 @@
 
 const struct nvkm_chan_func
 gk110_chan = {
+	.bind = gk104_chan_bind,
+	.unbind = gk104_chan_unbind,
 };
 
 const struct nvkm_cgrp_func

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm107.c

@@ -34,6 +34,8 @@
 
 const struct nvkm_chan_func
 gm107_chan = {
+	.bind = gk104_chan_bind_inst,
+	.unbind = gk104_chan_unbind,
 };
 
 static void

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c

@@ -157,10 +157,6 @@ gf100_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 		nvkm_mask(device, 0x003004 + coff, 0x00000001, 0x00000000);
 		gf100_fifo_runlist_commit(fifo);
 	}
-
-	gf100_fifo_intr_engine(fifo);
-
-	nvkm_wr32(device, 0x003000 + coff, 0x00000000);
 }
 
 static void
@@ -169,11 +165,8 @@ gf100_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 	struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 	struct gf100_fifo *fifo = chan->fifo;
 	struct nvkm_device *device = fifo->base.engine.subdev.device;
-	u32 addr = chan->base.inst->addr >> 12;
 	u32 coff = chan->base.chid * 8;
 
-	nvkm_wr32(device, 0x003000 + coff, 0xc0000000 | addr);
-
 	if (list_empty(&chan->head) && !chan->killed) {
 		gf100_fifo_runlist_insert(fifo, chan);
 		nvkm_wr32(device, 0x003004 + coff, 0x001f0001);

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

@@ -208,8 +208,6 @@ gk104_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 		gk104_fifo_gpfifo_kick(chan);
 		gk104_fifo_runlist_update(fifo, chan->runl);
 	}
-
-	nvkm_wr32(device, 0x800000 + coff, 0x00000000);
 }
 
 void
@@ -218,12 +216,8 @@ gk104_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 	struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 	struct gk104_fifo *fifo = chan->fifo;
 	struct nvkm_device *device = fifo->base.engine.subdev.device;
-	u32 addr = chan->base.inst->addr >> 12;
 	u32 coff = chan->base.chid * 8;
 
-	nvkm_mask(device, 0x800004 + coff, 0x000f0000, chan->runl << 16);
-	nvkm_wr32(device, 0x800000 + coff, 0x80000000 | addr);
-
 	if (list_empty(&chan->head) && !chan->killed) {
 		gk104_fifo_runlist_insert(fifo, chan);
 		nvkm_mask(device, 0x800004 + coff, 0x00000400, 0x00000400);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gv100.c

@@ -33,6 +33,8 @@
 
 static const struct nvkm_chan_func
 gv100_chan = {
+	.bind = gk104_chan_bind_inst,
+	.unbind = gk104_chan_unbind,
 };
 
 const struct nvkm_engn_func

drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c

@@ -21,6 +21,7 @@
  *
  * Authors: Ben Skeggs
  */
+#include "cgrp.h"
 #include "chan.h"
 #include "chid.h"
 #include "runl.h"
@@ -33,8 +34,26 @@
 
 #include <nvif/class.h>
 
+void
+nv50_chan_unbind(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x002600 + (chan->id * 4), 0x00000000);
+}
+
+static void
+nv50_chan_bind(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x002600 + (chan->id * 4), nv50_fifo_chan(chan)->ramfc->addr >> 12);
+}
+
 static const struct nvkm_chan_func
 nv50_chan = {
+	.bind = nv50_chan_bind,
+	.unbind = nv50_chan_unbind,
 };
 
 static const struct nvkm_engn_func

drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h

@@ -103,6 +103,7 @@ int nv50_fifo_chid_ctor(struct nvkm_fifo *, int);
 extern const struct nvkm_runl_func nv50_runl;
 int nv50_runl_wait(struct nvkm_runl *);
 extern const struct nvkm_engn_func nv50_engn_sw;
+void nv50_chan_unbind(struct nvkm_chan *);
 
 extern const struct nvkm_event_func g84_fifo_nonstall;
 extern const struct nvkm_engn_func g84_engn;
@@ -142,6 +143,9 @@ bool gk104_runq_intr(struct nvkm_runq *, struct nvkm_runl *);
 extern const struct nvkm_bitfield gk104_runq_intr_0_names[];
 extern const struct nvkm_engn_func gk104_engn;
 extern const struct nvkm_engn_func gk104_engn_ce;
+void gk104_chan_bind(struct nvkm_chan *);
+void gk104_chan_bind_inst(struct nvkm_chan *);
+void gk104_chan_unbind(struct nvkm_chan *);
 
 int gk110_fifo_chid_ctor(struct nvkm_fifo *, int);
 extern const struct nvkm_runl_func gk110_runl;

drivers/gpu/drm/nouveau/nvkm/engine/fifo/tu102.c

@@ -33,6 +33,8 @@
 
 static const struct nvkm_chan_func
 tu102_chan = {
+	.bind = gk104_chan_bind_inst,
+	.unbind = gk104_chan_unbind,
 };
 
 static bool

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

@@ -217,6 +217,9 @@ nvkm_uchan_fini(struct nvkm_object *object, bool suspend)
 	if (ret && suspend)
 		return ret;
 
+	if (chan->func->unbind)
+		chan->func->unbind(chan);
+
 	return 0;
 }
 
@@ -225,6 +228,9 @@ nvkm_uchan_init(struct nvkm_object *object)
 {
 	struct nvkm_chan *chan = nvkm_uchan(object)->chan;
 
+	if (chan->func->bind)
+		chan->func->bind(chan);
+
 	return chan->object.func->init(&chan->object);
 }