drm/nouveau/vfn: move NV_USERMODE class from host

- uses proper class IDs for Turing/Ampere

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

7 files changed, 89 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/Kbuild
index 21c975a6b206..23cd21b40a25 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/Kbuild
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: MIT
 nvkm-y += nvkm/subdev/vfn/base.o
+nvkm-y += nvkm/subdev/vfn/uvfn.o
 nvkm-y += nvkm/subdev/vfn/gv100.o
 nvkm-y += nvkm/subdev/vfn/tu102.o
 nvkm-y += nvkm/subdev/vfn/ga100.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/base.c
index 682ca3ed725b..3aa042eec104 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/base.c
@@ -44,5 +44,9 @@ nvkm_vfn_new_(const struct nvkm_vfn_func *func, struct nvkm_device *device,
 	nvkm_subdev_ctor(&nvkm_vfn, device, type, inst, &vfn->subdev);
 	vfn->func = func;
 	vfn->addr.priv = addr;
+	vfn->addr.user = vfn->addr.priv + func->user.addr;
+
+	vfn->user.ctor = nvkm_uvfn_new;
+	vfn->user.base = func->user.base;
 	return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/ga100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/ga100.c
index 979402dff659..626b64230fe5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/ga100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/ga100.c
@@ -21,8 +21,11 @@
  */
 #include "priv.h"
 
+#include <nvif/class.h>
+
 static const struct nvkm_vfn_func
 ga100_vfn = {
+	.user = { 0x030000, 0x010000, { -1, -1, AMPERE_USERMODE_A } },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/gv100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/gv100.c
index 83dd79bddd86..ddd39d714c4a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/gv100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/gv100.c
@@ -21,8 +21,11 @@
  */
 #include "priv.h"
 
+#include <nvif/class.h>
+
 static const struct nvkm_vfn_func
 gv100_vfn = {
+	.user = { 0x810000, 0x010000, { -1, -1, VOLTA_USERMODE_A } },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/priv.h
index 174817c76bf9..e6f436532392 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/priv.h
@@ -5,8 +5,16 @@
 #include <subdev/vfn.h>
 
 struct nvkm_vfn_func {
+	struct {
+		u32 addr;
+		u32 size;
+		const struct nvkm_sclass base;
+	} user;
 };
 
 int nvkm_vfn_new_(const struct nvkm_vfn_func *, struct nvkm_device *, enum nvkm_subdev_type, int,
 		  u32 addr, struct nvkm_vfn **);
+
+int nvkm_uvfn_new(struct nvkm_device *, const struct nvkm_oclass *, void *, u32,
+		  struct nvkm_object **);
 #endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/tu102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/tu102.c
index 999e50f5c36b..9e1745d31fbb 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/tu102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/tu102.c
@@ -21,8 +21,11 @@
  */
 #include "priv.h"
 
+#include <nvif/class.h>
+
 static const struct nvkm_vfn_func
 tu102_vfn = {
+	.user = { 0x030000, 0x010000, { -1, -1, TURING_USERMODE_A } },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/uvfn.c b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/uvfn.c
new file mode 100644
index 000000000000..c5460a14c541
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/vfn/uvfn.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2021 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#define nvkm_uvfn(p) container_of((p), struct nvkm_uvfn, object)
+#include "priv.h"
+
+#include <core/object.h>
+
+struct nvkm_uvfn {
+	struct nvkm_object object;
+	struct nvkm_vfn *vfn;
+};
+
+static int
+nvkm_uvfn_map(struct nvkm_object *object, void *argv, u32 argc,
+	      enum nvkm_object_map *type, u64 *addr, u64 *size)
+{
+	struct nvkm_vfn *vfn = nvkm_uvfn(object)->vfn;
+	struct nvkm_device *device = vfn->subdev.device;
+
+	*addr = device->func->resource_addr(device, 0) + vfn->addr.user;
+	*size = vfn->func->user.size;
+	*type = NVKM_OBJECT_MAP_IO;
+	return 0;
+}
+
+static const struct nvkm_object_func
+nvkm_uvfn = {
+	.map = nvkm_uvfn_map,
+};
+
+int
+nvkm_uvfn_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
+	      void *argv, u32 argc, struct nvkm_object **pobject)
+{
+	struct nvkm_uvfn *uvfn;
+
+	if (argc != 0)
+		return -ENOSYS;
+
+	if (!(uvfn = kzalloc(sizeof(*uvfn), GFP_KERNEL)))
+		return -ENOMEM;
+
+	nvkm_object_ctor(&nvkm_uvfn, oclass, &uvfn->object);
+	uvfn->vfn = device->vfn;
+
+	*pobject = &uvfn->object;
+	return 0;
+}