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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/agp_backend.h
downloadlinux-2.6.34-ux500-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h
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+/*
+ * 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 */