v4.19.13 snapshot.
diff --git a/include/linux/agpgart.h b/include/linux/agpgart.h
new file mode 100644
index 0000000..c6b61ca
--- /dev/null
+++ b/include/linux/agpgart.h
@@ -0,0 +1,130 @@
+/*
+ * AGPGART module version 0.99
+ * 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_H
+#define _AGP_H 1
+
+#include <linux/mutex.h>
+#include <linux/agp_backend.h>
+#include <uapi/linux/agpgart.h>
+
+#define AGPGART_MINOR 175
+
+struct agp_info {
+ struct agp_version version; /* version of the driver */
+ u32 bridge_id; /* bridge vendor/device */
+ u32 agp_mode; /* mode info of bridge */
+ unsigned long aper_base;/* base of aperture */
+ size_t aper_size; /* size of aperture */
+ size_t pg_total; /* max pages (swap + system) */
+ size_t pg_system; /* max pages (system) */
+ size_t pg_used; /* current pages used */
+};
+
+struct agp_setup {
+ u32 agp_mode; /* mode info of bridge */
+};
+
+/*
+ * The "prot" down below needs still a "sleep" flag somehow ...
+ */
+struct agp_segment {
+ off_t pg_start; /* starting page to populate */
+ size_t pg_count; /* number of pages */
+ int prot; /* prot flags for mmap */
+};
+
+struct agp_segment_priv {
+ off_t pg_start;
+ size_t pg_count;
+ pgprot_t prot;
+};
+
+struct agp_region {
+ pid_t pid; /* pid of process */
+ size_t seg_count; /* number of segments */
+ struct agp_segment *seg_list;
+};
+
+struct agp_allocate {
+ int key; /* tag of allocation */
+ size_t pg_count; /* number of pages */
+ u32 type; /* 0 == normal, other devspec */
+ u32 physical; /* device specific (some devices
+ * need a phys address of the
+ * actual page behind the gatt
+ * table) */
+};
+
+struct agp_bind {
+ int key; /* tag of allocation */
+ off_t pg_start; /* starting page to populate */
+};
+
+struct agp_unbind {
+ int key; /* tag of allocation */
+ u32 priority; /* priority for paging out */
+};
+
+struct agp_client {
+ struct agp_client *next;
+ struct agp_client *prev;
+ pid_t pid;
+ int num_segments;
+ struct agp_segment_priv **segments;
+};
+
+struct agp_controller {
+ struct agp_controller *next;
+ struct agp_controller *prev;
+ pid_t pid;
+ int num_clients;
+ struct agp_memory *pool;
+ struct agp_client *clients;
+};
+
+#define AGP_FF_ALLOW_CLIENT 0
+#define AGP_FF_ALLOW_CONTROLLER 1
+#define AGP_FF_IS_CLIENT 2
+#define AGP_FF_IS_CONTROLLER 3
+#define AGP_FF_IS_VALID 4
+
+struct agp_file_private {
+ struct agp_file_private *next;
+ struct agp_file_private *prev;
+ pid_t my_pid;
+ unsigned long access_flags; /* long req'd for set_bit --RR */
+};
+
+struct agp_front_data {
+ struct mutex agp_mutex;
+ struct agp_controller *current_controller;
+ struct agp_controller *controllers;
+ struct agp_file_private *file_priv_list;
+ bool used_by_controller;
+ bool backend_acquired;
+};
+
+#endif /* _AGP_H */