drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes)

The symlinks were annoying some people, and they're not used anywhere
else in the kernel tree.  The include directory structure has been
changed so that symlinks aren't needed anymore.

NVKM has been moved from core/ to nvkm/ to make it more obvious as to
what the directory is for, and as some minor prep for when NVKM gets
split out into its own module (virt) at a later date.

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

1 files changed, 224 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/core/handle.c b/drivers/gpu/drm/nouveau/nvkm/core/handle.c
new file mode 100644
index 000000000000..13f816cb08bd
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/handle.c
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2012 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.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <core/object.h>
+#include <core/handle.h>
+#include <core/client.h>
+
+#define hprintk(h,l,f,a...) do {                                               \
+	struct nouveau_client *c = nouveau_client((h)->object);                \
+	struct nouveau_handle *p = (h)->parent; u32 n = p ? p->name : ~0;      \
+	nv_printk((c), l, "0x%08x:0x%08x "f, n, (h)->name, ##a);               \
+} while(0)
+
+int
+nouveau_handle_init(struct nouveau_handle *handle)
+{
+	struct nouveau_handle *item;
+	int ret;
+
+	hprintk(handle, TRACE, "init running\n");
+	ret = nouveau_object_inc(handle->object);
+	if (ret)
+		return ret;
+
+	hprintk(handle, TRACE, "init children\n");
+	list_for_each_entry(item, &handle->tree, head) {
+		ret = nouveau_handle_init(item);
+		if (ret)
+			goto fail;
+	}
+
+	hprintk(handle, TRACE, "init completed\n");
+	return 0;
+fail:
+	hprintk(handle, ERROR, "init failed with %d\n", ret);
+	list_for_each_entry_continue_reverse(item, &handle->tree, head) {
+		nouveau_handle_fini(item, false);
+	}
+
+	nouveau_object_dec(handle->object, false);
+	return ret;
+}
+
+int
+nouveau_handle_fini(struct nouveau_handle *handle, bool suspend)
+{
+	static char *name[2] = { "fini", "suspend" };
+	struct nouveau_handle *item;
+	int ret;
+
+	hprintk(handle, TRACE, "%s children\n", name[suspend]);
+	list_for_each_entry(item, &handle->tree, head) {
+		ret = nouveau_handle_fini(item, suspend);
+		if (ret && suspend)
+			goto fail;
+	}
+
+	hprintk(handle, TRACE, "%s running\n", name[suspend]);
+	if (handle->object) {
+		ret = nouveau_object_dec(handle->object, suspend);
+		if (ret && suspend)
+			goto fail;
+	}
+
+	hprintk(handle, TRACE, "%s completed\n", name[suspend]);
+	return 0;
+fail:
+	hprintk(handle, ERROR, "%s failed with %d\n", name[suspend], ret);
+	list_for_each_entry_continue_reverse(item, &handle->tree, head) {
+		int rret = nouveau_handle_init(item);
+		if (rret)
+			hprintk(handle, FATAL, "failed to restart, %d\n", rret);
+	}
+
+	return ret;
+}
+
+int
+nouveau_handle_create(struct nouveau_object *parent, u32 _parent, u32 _handle,
+		      struct nouveau_object *object,
+		      struct nouveau_handle **phandle)
+{
+	struct nouveau_object *namedb;
+	struct nouveau_handle *handle;
+	int ret;
+
+	namedb = parent;
+	while (!nv_iclass(namedb, NV_NAMEDB_CLASS))
+		namedb = namedb->parent;
+
+	handle = kzalloc(sizeof(*handle), GFP_KERNEL);
+	if (!handle)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&handle->head);
+	INIT_LIST_HEAD(&handle->tree);
+	handle->name = _handle;
+	handle->priv = ~0;
+
+	ret = nouveau_namedb_insert(nv_namedb(namedb), _handle, object, handle);
+	if (ret) {
+		kfree(handle);
+		return ret;
+	}
+
+	if (nv_parent(parent)->object_attach) {
+		ret = nv_parent(parent)->object_attach(parent, object, _handle);
+		if (ret < 0) {
+			nouveau_handle_destroy(handle);
+			return ret;
+		}
+
+		handle->priv = ret;
+	}
+
+	if (object != namedb) {
+		while (!nv_iclass(namedb, NV_CLIENT_CLASS))
+			namedb = namedb->parent;
+
+		handle->parent = nouveau_namedb_get(nv_namedb(namedb), _parent);
+		if (handle->parent) {
+			list_add(&handle->head, &handle->parent->tree);
+			nouveau_namedb_put(handle->parent);
+		}
+	}
+
+	hprintk(handle, TRACE, "created\n");
+	*phandle = handle;
+	return 0;
+}
+
+void
+nouveau_handle_destroy(struct nouveau_handle *handle)
+{
+	struct nouveau_handle *item, *temp;
+
+	hprintk(handle, TRACE, "destroy running\n");
+	list_for_each_entry_safe(item, temp, &handle->tree, head) {
+		nouveau_handle_destroy(item);
+	}
+	list_del(&handle->head);
+
+	if (handle->priv != ~0) {
+		struct nouveau_object *parent = handle->parent->object;
+		nv_parent(parent)->object_detach(parent, handle->priv);
+	}
+
+	hprintk(handle, TRACE, "destroy completed\n");
+	nouveau_namedb_remove(handle);
+	kfree(handle);
+}
+
+struct nouveau_object *
+nouveau_handle_ref(struct nouveau_object *parent, u32 name)
+{
+	struct nouveau_object *object = NULL;
+	struct nouveau_handle *handle;
+
+	while (!nv_iclass(parent, NV_NAMEDB_CLASS))
+		parent = parent->parent;
+
+	handle = nouveau_namedb_get(nv_namedb(parent), name);
+	if (handle) {
+		nouveau_object_ref(handle->object, &object);
+		nouveau_namedb_put(handle);
+	}
+
+	return object;
+}
+
+struct nouveau_handle *
+nouveau_handle_get_class(struct nouveau_object *engctx, u16 oclass)
+{
+	struct nouveau_namedb *namedb;
+	if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
+		return nouveau_namedb_get_class(namedb, oclass);
+	return NULL;
+}
+
+struct nouveau_handle *
+nouveau_handle_get_vinst(struct nouveau_object *engctx, u64 vinst)
+{
+	struct nouveau_namedb *namedb;
+	if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
+		return nouveau_namedb_get_vinst(namedb, vinst);
+	return NULL;
+}
+
+struct nouveau_handle *
+nouveau_handle_get_cinst(struct nouveau_object *engctx, u32 cinst)
+{
+	struct nouveau_namedb *namedb;
+	if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
+		return nouveau_namedb_get_cinst(namedb, cinst);
+	return NULL;
+}
+
+void
+nouveau_handle_put(struct nouveau_handle *handle)
+{
+	if (handle)
+		nouveau_namedb_put(handle);
+}