1 files changed, 104 insertions, 0 deletions

diff --git a/include/nvgpu/list.h b/include/nvgpu/list.h
new file mode 100644
index 0000000..1608035
--- /dev/null
+++ b/include/nvgpu/list.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#ifndef NVGPU_LIST_H
+#define NVGPU_LIST_H
+#include <nvgpu/types.h>
+
+struct nvgpu_list_node {
+        struct nvgpu_list_node *prev;
+        struct nvgpu_list_node *next;
+};
+
+static inline void nvgpu_init_list_node(struct nvgpu_list_node *node)
+{
+        node->prev = node;
+        node->next = node;
+}
+
+static inline void nvgpu_list_add(struct nvgpu_list_node *new_node, struct nvgpu_list_node *head)
+{
+        new_node->next = head->next;
+        new_node->next->prev = new_node;
+        new_node->prev = head;
+        head->next = new_node;
+}
+
+static inline void nvgpu_list_add_tail(struct nvgpu_list_node *new_node, struct nvgpu_list_node *head)
+{
+        new_node->prev = head->prev;
+        new_node->prev->next = new_node;
+        new_node->next = head;
+        head->prev = new_node;
+}
+
+static inline void nvgpu_list_del(struct nvgpu_list_node *node)
+{
+        node->prev->next = node->next;
+        node->next->prev = node->prev;
+        nvgpu_init_list_node(node);
+}
+
+static inline bool nvgpu_list_empty(struct nvgpu_list_node *head)
+{
+        return head->next == head;
+}
+
+static inline void nvgpu_list_move(struct nvgpu_list_node *node, struct nvgpu_list_node *head)
+{
+        nvgpu_list_del(node);
+        nvgpu_list_add(node, head);
+}
+
+static inline void nvgpu_list_replace_init(struct nvgpu_list_node *old_node, struct nvgpu_list_node *new_node)
+{
+        new_node->next = old_node->next;
+        new_node->next->prev = new_node;
+        new_node->prev = old_node->prev;
+        new_node->prev->next = new_node;
+        nvgpu_init_list_node(old_node);
+}
+
+#define nvgpu_list_entry(ptr, type, member)     \
+        type ## _from_ ## member(ptr)
+
+#define nvgpu_list_next_entry(pos, type, member)        \
+        nvgpu_list_entry((pos)->member.next, type, member)
+
+#define nvgpu_list_first_entry(ptr, type, member)       \
+        nvgpu_list_entry((ptr)->next, type, member)
+
+#define nvgpu_list_last_entry(ptr, type, member)        \
+        nvgpu_list_entry((ptr)->prev, type, member)
+
+#define nvgpu_list_for_each_entry(pos, head, type, member)      \
+        for (pos = nvgpu_list_first_entry(head, type, member);  \
+                &pos->member != (head);                         \
+                pos = nvgpu_list_next_entry(pos, type, member))
+
+#define nvgpu_list_for_each_entry_safe(pos, n, head, type, member)      \
+        for (pos = nvgpu_list_first_entry(head, type, member),          \
+                        n = nvgpu_list_next_entry(pos, type, member);   \
+                &pos->member != (head);                                 \
+                pos = n, n = nvgpu_list_next_entry(n, type, member))
+
+#endif /* NVGPU_LIST_H */