Add vga bios repost support. Fetched from the NetBSD tree mostly.

Tested on multiple i386 and it works, amd64 works also with a few
exceptions that will get fixed.

The initial effort of importing was done by oga@, thanks!

Lots of testing and debugging by mlarkin@ and me.
Okay deraadt@, oga@, mlarkin@.

1 files changed, 43 insertions, 0 deletions

diff --git a/sys/arch/amd64/include/vga_post.h b/sys/arch/amd64/include/vga_post.h
new file mode 100644
index 00000000000..36a9a2d4680
--- /dev/null
+++ b/sys/arch/amd64/include/vga_post.h
@@ -0,0 +1,43 @@
+/* $NetBSD: vga_post.h,v 1.2 2008/03/29 17:40:22 jmcneill Exp $ */
+/* $OpenBSD: vga_post.h,v 1.1 2009/06/06 00:35:00 pirofti Exp $ */
+
+/*-
+ * Copyright (c) 2007 Joerg Sonnenberger <joerg@NetBSD.org>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _X86_VGA_POST_H_
+#define _X86_VGA_POST_H_
+
+#ifdef _KERNEL
+struct vga_post;
+
+struct vga_post	*vga_post_init(int, int, int);
+void		vga_post_free(struct vga_post *);
+void		vga_post_call(struct vga_post *);
+#endif
+#endif