drm/nouveau/bar: move bar1 initialisation into its own function

BAR2 being done for practical reasons, this is just for consistency.

Flushes have been added after the write to bind the instance block,
as later commits will reveal the need for them.

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

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 *);