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path: root/drivers/gpu/drm/nouveau/nvif/user.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvif/user.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvif/user.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvif/user.c b/drivers/gpu/drm/nouveau/nvif/user.c
new file mode 100644
index 000000000000..10da3cdca647
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvif/user.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2018 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.
+ */
+#include <nvif/user.h>
+#include <nvif/device.h>
+
+#include <nvif/class.h>
+
+void
+nvif_user_fini(struct nvif_device *device)
+{
+ if (device->user.func) {
+ nvif_object_fini(&device->user.object);
+ device->user.func = NULL;
+ }
+}
+
+int
+nvif_user_init(struct nvif_device *device)
+{
+ struct {
+ s32 oclass;
+ int version;
+ const struct nvif_user_func *func;
+ } users[] = {
+ { VOLTA_USERMODE_A, -1, &nvif_userc361 },
+ {}
+ };
+ int cid, ret;
+
+ if (device->user.func)
+ return 0;
+
+ cid = nvif_mclass(&device->object, users);
+ if (cid < 0)
+ return cid;
+
+ ret = nvif_object_init(&device->object, 0, users[cid].oclass, NULL, 0,
+ &device->user.object);
+ if (ret)
+ return ret;
+
+ nvif_object_map(&device->user.object, NULL, 0);
+ device->user.func = users[cid].func;
+ return 0;
+}