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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/linux/agp_backend.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/linux/agp_backend.h')
-rw-r--r--kernel/include/linux/agp_backend.h109
1 files changed, 109 insertions, 0 deletions
diff --git a/kernel/include/linux/agp_backend.h b/kernel/include/linux/agp_backend.h
new file mode 100644
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+++ b/kernel/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
+
+#include <linux/list.h>
+
+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;
+ bool cant_use_aperture;
+ unsigned long page_mask;
+ const 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;
+ struct page **pages;
+ size_t page_count;
+ int key;
+ int num_scratch_pages;
+ off_t pg_start;
+ u32 type;
+ u32 physical;
+ bool is_bound;
+ bool is_flushed;
+ /* list of agp_memory mapped to the aperture */
+ struct list_head mapped_list;
+ /* DMA-mapped addresses */
+ struct scatterlist *sg_list;
+ int num_sg;
+};
+
+#define AGP_NORMAL_MEMORY 0
+
+#define AGP_USER_TYPES (1 << 16)
+#define AGP_USER_MEMORY (AGP_USER_TYPES)
+#define AGP_USER_CACHED_MEMORY (AGP_USER_TYPES + 1)
+
+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 /* _AGP_BACKEND_H */