patch-2.4.19 linux-2.4.19/include/asm-ppc64/bootinfo.h

• Lines: 71
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-ppc64/bootinfo.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-ppc64/bootinfo.h linux-2.4.19/include/asm-ppc64/bootinfo.h
@@ -0,0 +1,70 @@
+/*
+ * Non-machine dependent bootinfo structure.  Basic idea
+ * borrowed from the m68k.
+ *
+ * Copyright (C) 1999 Cort Dougan <cort@ppc.kernel.org>
+ * Copyright (c) 2001 PPC64 Team, IBM Corp 
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+
+#ifndef _PPC64_BOOTINFO_H
+#define _PPC64_BOOTINFO_H
+
+#include <asm/types.h>
+
+/* We use a u32 for the type of the fields since they're written by
+ * the bootloader which is a 32-bit process and read by the kernel
+ * which is a 64-bit process.  This way they can both agree on the
+ * size of the type.
+ */
+typedef u32 bi_rec_field;
+
+struct bi_record {
+	bi_rec_field tag;	/* tag ID */
+	bi_rec_field size;	/* size of record (in bytes) */
+	bi_rec_field data[0];	/* data */
+};
+
+#define BI_FIRST		0x1010  /* first record - marker */
+#define BI_LAST			0x1011	/* last record - marker */
+#define BI_CMD_LINE		0x1012
+#define BI_BOOTLOADER_ID	0x1013
+#define BI_INITRD		0x1014
+#define BI_SYSMAP		0x1015
+#define BI_MACHTYPE		0x1016
+
+static __inline__ struct bi_record * bi_rec_init(unsigned long addr)
+{
+	struct bi_record *bi_recs;
+	bi_recs = (struct bi_record *)_ALIGN(addr, PAGE_SIZE);
+	bi_recs->size = 0;
+	return bi_recs;
+}
+
+static __inline__ struct bi_record * bi_rec_alloc(struct bi_record *rec,
+						  unsigned long args)
+{
+	rec = (struct bi_record *)((unsigned long)rec + rec->size);
+	rec->size = sizeof(struct bi_record) + args*sizeof(bi_rec_field);
+	return rec;
+}
+
+static __inline__ struct bi_record * bi_rec_alloc_bytes(struct bi_record *rec,
+							unsigned long bytes)
+{
+	rec = (struct bi_record *)((unsigned long)rec + rec->size);
+	rec->size = sizeof(struct bi_record) + bytes;
+	return rec;
+}
+
+static __inline__ struct bi_record * bi_rec_next(struct bi_record *rec)
+{
+	return (struct bi_record *)((unsigned long)rec + rec->size);
+}
+
+#endif /* _PPC64_BOOTINFO_H */