1 files changed, 109 insertions, 0 deletions

diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h
new file mode 100644
index 000000000000..a5c8bb5d80ba
--- /dev/null
+++ b/include/linux/agp_backend.h
@@ -0,0 +1,109 @@
+/*
+ * AGPGART backend specific includes. Not for userspace consumption.
+ *
+ * Copyright (C) 2004 Silicon Graphics, Inc.
+ * Copyright (C) 2002-2003 Dave Jones
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, 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
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS 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 _AGP_BACKEND_H
+#define _AGP_BACKEND_H 1
+
+#ifdef __KERNEL__
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+enum chipset_type {
+        NOT_SUPPORTED,
+        SUPPORTED,
+};
+
+struct agp_version {
+        u16 major;
+        u16 minor;
+};
+
+struct agp_kern_info {
+        struct agp_version version;
+        struct pci_dev *device;
+        enum chipset_type chipset;
+        unsigned long mode;
+        unsigned long aper_base;
+        size_t aper_size;
+        int max_memory;         /* In pages */
+        int current_memory;
+        int cant_use_aperture;
+        unsigned long page_mask;
+        struct vm_operations_struct *vm_ops;
+};
+
+/*
+ * The agp_memory structure has information about the block of agp memory
+ * allocated.  A caller may manipulate the next and prev pointers to link
+ * each allocated item into a list.  These pointers are ignored by the backend.
+ * Everything else should never be written to, but the caller may read any of
+ * the items to determine the status of this block of agp memory.
+ */
+
+struct agp_bridge_data;
+
+struct agp_memory {
+        struct agp_memory *next;
+        struct agp_memory *prev;
+        struct agp_bridge_data *bridge;
+        unsigned long *memory;
+        size_t page_count;
+        int key;
+        int num_scratch_pages;
+        off_t pg_start;
+        u32 type;
+        u32 physical;
+        u8 is_bound;
+        u8 is_flushed;
+};
+
+#define AGP_NORMAL_MEMORY 0
+
+extern struct agp_bridge_data *agp_bridge;
+extern struct list_head agp_bridges;
+
+extern struct agp_bridge_data *(*agp_find_bridge)(struct pci_dev *);
+
+extern void agp_free_memory(struct agp_memory *);
+extern struct agp_memory *agp_allocate_memory(struct agp_bridge_data *, size_t, u32);
+extern int agp_copy_info(struct agp_bridge_data *, struct agp_kern_info *);
+extern int agp_bind_memory(struct agp_memory *, off_t);
+extern int agp_unbind_memory(struct agp_memory *);
+extern void agp_enable(struct agp_bridge_data *, u32);
+extern struct agp_bridge_data *agp_backend_acquire(struct pci_dev *);
+extern void agp_backend_release(struct agp_bridge_data *);
+
+#endif                          /* __KERNEL__ */
+#endif                          /* _AGP_BACKEND_H */