From f37a302e67195af7d5a410901c5e8ddbbe895182 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 11 Dec 2018 14:50:02 +1000
Subject: [PATCH] drm/nouveau/fifo/gk104-: virtualise pbdma enable function
Git-commit: f37a302e67195af7d5a410901c5e8ddbbe895182
Patch-mainline: v5.0-rc1
References: bsc#1133593

Turing will require different code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c | 10 +++++++++-
 drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h |  2 ++
 drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c |  1 +
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
index 1a6bafbc53ca..79e0b58c5de7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
@@ -249,8 +249,16 @@ gk104_fifo_runlist = {
 	.commit = gk104_fifo_runlist_commit,
 };
 
+void
+gk104_fifo_pbdma_init(struct gk104_fifo *fifo)
+{
+	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	nvkm_wr32(device, 0x000204, (1 << fifo->pbdma_nr) - 1);
+}
+
 const struct gk104_fifo_pbdma_func
 gk104_fifo_pbdma = {
+	.init = gk104_fifo_pbdma_init,
 };
 
 static void
@@ -991,7 +999,7 @@ gk104_fifo_init(struct nvkm_fifo *base)
 	int i;
 
 	/* Enable PBDMAs. */
-	nvkm_wr32(device, 0x000204, (1 << fifo->pbdma_nr) - 1);
+	fifo->func->pbdma->init(fifo);
 
 	/* PBDMA[n] */
 	for (i = 0; i < fifo->pbdma_nr; i++) {
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h
index c069183c20f8..61d7eee516af 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h
@@ -46,6 +46,7 @@ struct gk104_fifo {
 
 struct gk104_fifo_func {
 	const struct gk104_fifo_pbdma_func {
+		void (*init)(struct gk104_fifo *);
 		void (*init_timeout)(struct gk104_fifo *);
 	} *pbdma;
 
@@ -88,6 +89,7 @@ void gk104_fifo_runlist_remove(struct gk104_fifo *, struct gk104_fifo_chan *);
 void gk104_fifo_runlist_update(struct gk104_fifo *, int runl);
 
 extern const struct gk104_fifo_pbdma_func gk104_fifo_pbdma;
+void gk104_fifo_pbdma_init(struct gk104_fifo *);
 extern const struct nvkm_enum gk104_fifo_fault_access[];
 extern const struct nvkm_enum gk104_fifo_fault_engine[];
 extern const struct nvkm_enum gk104_fifo_fault_reason[];
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c
index c0c1606656df..45952292c436 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c
@@ -38,6 +38,7 @@ gk208_fifo_pbdma_init_timeout(struct gk104_fifo *fifo)
 
 const struct gk104_fifo_pbdma_func
 gk208_fifo_pbdma = {
+	.init = gk104_fifo_pbdma_init,
 	.init_timeout = gk208_fifo_pbdma_init_timeout,
 };
 
-- 
2.16.4