8 files changed, 51 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c
index f849db6ef541..adaf91ee8326 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c
@@ -49,6 +49,8 @@ static int
 nvkm_bar_init(struct nvkm_subdev *subdev)
 {
 	struct nvkm_bar *bar = nvkm_bar(subdev);
+	bar->func->bar1.init(bar);
+	bar->func->bar1.wait(bar);
 	bar->func->init(bar);
 	return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c
index ef717136c838..dee1cd9987c2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c
@@ -44,6 +44,8 @@ g84_bar_func = {
 	.dtor = nv50_bar_dtor,
 	.oneinit = nv50_bar_oneinit,
 	.init = nv50_bar_init,
+	.bar1.init = nv50_bar_bar1_init,
+	.bar1.wait = nv50_bar_bar1_wait,
 	.kmap = nv50_bar_kmap,
 	.umap = nv50_bar_umap,
 	.flush = g84_bar_flush,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
index d2496cd736fa..fc3d771cef50 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
@@ -42,15 +42,29 @@ gf100_bar_umap(struct nvkm_bar *base, u64 size, int type, struct nvkm_vma *vma)
 }
 
 void
+gf100_bar_bar1_wait(struct nvkm_bar *base)
+{
+	/* NFI why it's twice. */
+	nvkm_bar_flush(base);
+	nvkm_bar_flush(base);
+}
+
+void
+gf100_bar_bar1_init(struct nvkm_bar *base)
+{
+	struct nvkm_device *device = base->subdev.device;
+	struct gf100_bar *bar = gf100_bar(base);
+	const u32 addr = nvkm_memory_addr(bar->bar[1].mem) >> 12;
+	nvkm_wr32(device, 0x001704, 0x80000000 | addr);
+}
+
+void
 gf100_bar_init(struct nvkm_bar *base)
 {
 	struct gf100_bar *bar = gf100_bar(base);
 	struct nvkm_device *device = bar->base.subdev.device;
 	u32 addr;
 
-	addr = nvkm_memory_addr(bar->bar[1].mem) >> 12;
-	nvkm_wr32(device, 0x001704, 0x80000000 | addr);
-
 	if (bar->bar[0].mem) {
 		addr = nvkm_memory_addr(bar->bar[0].mem) >> 12;
 		if (bar->bar2_halve)
@@ -171,6 +185,8 @@ gf100_bar_func = {
 	.dtor = gf100_bar_dtor,
 	.oneinit = gf100_bar_oneinit,
 	.init = gf100_bar_init,
+	.bar1.init = gf100_bar_bar1_init,
+	.bar1.wait = gf100_bar_bar1_wait,
 	.kmap = gf100_bar_kmap,
 	.umap = gf100_bar_umap,
 	.flush = g84_bar_flush,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h
index ece98643bedd..9b994eaad1e5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h
@@ -20,5 +20,7 @@ int gf100_bar_new_(const struct nvkm_bar_func *, struct nvkm_device *,
 void *gf100_bar_dtor(struct nvkm_bar *);
 int gf100_bar_oneinit(struct nvkm_bar *);
 void gf100_bar_init(struct nvkm_bar *);
+void gf100_bar_bar1_init(struct nvkm_bar *);
+void gf100_bar_bar1_wait(struct nvkm_bar *);
 int gf100_bar_umap(struct nvkm_bar *, u64, int, struct nvkm_vma *);
 #endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gk20a.c
index 9232fab4274c..86aca93e76e8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gk20a.c
@@ -25,7 +25,8 @@ static const struct nvkm_bar_func
 gk20a_bar_func = {
 	.dtor = gf100_bar_dtor,
 	.oneinit = gf100_bar_oneinit,
-	.init = gf100_bar_init,
+	.bar1.init = gf100_bar_bar1_init,
+	.bar1.wait = gf100_bar_bar1_wait,
 	.umap = gf100_bar_umap,
 	.flush = g84_bar_flush,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c
index 8a4c42f9a96a..8cb8e721a515 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c
@@ -57,6 +57,20 @@ nv50_bar_flush(struct nvkm_bar *base)
 }
 
 void
+nv50_bar_bar1_wait(struct nvkm_bar *base)
+{
+	nvkm_bar_flush(base);
+}
+
+void
+nv50_bar_bar1_init(struct nvkm_bar *base)
+{
+	struct nvkm_device *device = base->subdev.device;
+	struct nv50_bar *bar = nv50_bar(base);
+	nvkm_wr32(device, 0x001708, 0x80000000 | bar->bar1->node->offset >> 4);
+}
+
+void
 nv50_bar_init(struct nvkm_bar *base)
 {
 	struct nv50_bar *bar = nv50_bar(base);
@@ -65,7 +79,6 @@ nv50_bar_init(struct nvkm_bar *base)
 
 	nvkm_wr32(device, 0x001704, 0x00000000 | bar->mem->addr >> 12);
 	nvkm_wr32(device, 0x001704, 0x40000000 | bar->mem->addr >> 12);
-	nvkm_wr32(device, 0x001708, 0x80000000 | bar->bar1->node->offset >> 4);
 	nvkm_wr32(device, 0x00170c, 0x80000000 | bar->bar2->node->offset >> 4);
 	for (i = 0; i < 8; i++)
 		nvkm_wr32(device, 0x001900 + (i * 4), 0x00000000);
@@ -194,6 +207,8 @@ nv50_bar_func = {
 	.dtor = nv50_bar_dtor,
 	.oneinit = nv50_bar_oneinit,
 	.init = nv50_bar_init,
+	.bar1.init = nv50_bar_bar1_init,
+	.bar1.wait = nv50_bar_bar1_wait,
 	.kmap = nv50_bar_kmap,
 	.umap = nv50_bar_umap,
 	.flush = nv50_bar_flush,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h
index 6ff3fdb4b4bd..52971cfd119c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h
@@ -20,6 +20,8 @@ int nv50_bar_new_(const struct nvkm_bar_func *, struct nvkm_device *,
 void *nv50_bar_dtor(struct nvkm_bar *);
 int nv50_bar_oneinit(struct nvkm_bar *);
 void nv50_bar_init(struct nvkm_bar *);
+void nv50_bar_bar1_init(struct nvkm_bar *);
+void nv50_bar_bar1_wait(struct nvkm_bar *);
 struct nvkm_vm *nv50_bar_kmap(struct nvkm_bar *);
 int nv50_bar_umap(struct nvkm_bar *, u64, int, struct nvkm_vma *);
 void nv50_bar_unmap(struct nvkm_bar *, struct nvkm_vma *);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h
index c017239b2a8e..8b508373769f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h
@@ -10,6 +10,12 @@ struct nvkm_bar_func {
 	void *(*dtor)(struct nvkm_bar *);
 	int (*oneinit)(struct nvkm_bar *);
 	void (*init)(struct nvkm_bar *);
+
+	struct {
+		void (*init)(struct nvkm_bar *);
+		void (*wait)(struct nvkm_bar *);
+	} bar1;
+
 	struct nvkm_vm *(*kmap)(struct nvkm_bar *);
 	int  (*umap)(struct nvkm_bar *, u64 size, int type, struct nvkm_vma *);
 	void (*flush)(struct nvkm_bar *);