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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_ramht.h')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_ramht.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_ramht.h b/drivers/gpu/drm/nouveau/nouveau_ramht.h
new file mode 100644
index 000000000000..b79cb5e1a8f1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_ramht.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2010 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
+ */
+
+#ifndef __NOUVEAU_RAMHT_H__
+#define __NOUVEAU_RAMHT_H__
+
+struct nouveau_ramht_entry {
+ struct list_head head;
+ struct nouveau_channel *channel;
+ struct nouveau_gpuobj *gpuobj;
+ u32 handle;
+};
+
+struct nouveau_ramht {
+ struct drm_device *dev;
+ struct kref refcount;
+ spinlock_t lock;
+ struct nouveau_gpuobj *gpuobj;
+ struct list_head entries;
+ int bits;
+};
+
+extern int nouveau_ramht_new(struct drm_device *, struct nouveau_gpuobj *,
+ struct nouveau_ramht **);
+extern void nouveau_ramht_ref(struct nouveau_ramht *, struct nouveau_ramht **,
+ struct nouveau_channel *unref_channel);
+
+extern int nouveau_ramht_insert(struct nouveau_channel *, u32 handle,
+ struct nouveau_gpuobj *);
+extern void nouveau_ramht_remove(struct nouveau_channel *, u32 handle);
+extern struct nouveau_gpuobj *
+nouveau_ramht_find(struct nouveau_channel *chan, u32 handle);
+
+#endif