diff --git a/include/asm-mips/sgialib.h b/include/asm-mips/sgialib.h
new file mode 100644
index 0000000..73f0973
--- /dev/null
+++ b/include/asm-mips/sgialib.h
@@ -0,0 +1,127 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * SGI ARCS firmware interface library for the Linux kernel.
+ *
+ * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ * Copyright (C) 2001, 2002 Ralf Baechle (ralf@gnu.org)
+ */
+#ifndef _ASM_SGIALIB_H
+#define _ASM_SGIALIB_H
+
+#include <asm/sgiarcs.h>
+
+extern struct linux_romvec *romvec;
+extern int prom_argc;
+
+extern LONG *_prom_argv, *_prom_envp;
+
+/* A 32-bit ARC PROM pass arguments and environment as 32-bit pointer.
+   These macros take care of sign extension.  */
+#define prom_argv(index) ((char *) (long) _prom_argv[(index)])
+#define prom_argc(index) ((char *) (long) _prom_argc[(index)])
+
+extern int prom_flags;
+
+#define PROM_FLAG_ARCS			1
+#define PROM_FLAG_USE_AS_CONSOLE	2
+#define PROM_FLAG_DONT_FREE_TEMP	4
+
+/* Simple char-by-char console I/O. */
+extern void prom_putchar(char c);
+extern char prom_getchar(void);
+
+/* Generic printf() using ARCS console I/O. */
+extern void prom_printf(char *fmt, ...);
+
+/* Memory descriptor management. */
+#define PROM_MAX_PMEMBLOCKS    32
+struct prom_pmemblock {
+	LONG	base;		/* Within KSEG0 or XKPHYS. */
+	ULONG	size;		/* In bytes. */
+	ULONG	type;		/* free or prom memory */
+};
+
+/* Get next memory descriptor after CURR, returns first descriptor
+ * in chain is CURR is NULL.
+ */
+extern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr);
+#define PROM_NULL_MDESC   ((struct linux_mdesc *) 0)
+
+/* Called by prom_init to setup the physical memory pmemblock
+ * array.
+ */
+extern void prom_meminit(void);
+extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem);
+
+/* PROM device tree library routines. */
+#define PROM_NULL_COMPONENT ((pcomponent *) 0)
+
+/* Get sibling component of THIS. */
+extern pcomponent *ArcGetPeer(pcomponent *this);
+
+/* Get child component of THIS. */
+extern pcomponent *ArcGetChild(pcomponent *this);
+
+/* Get parent component of CHILD. */
+extern pcomponent *prom_getparent(pcomponent *child);
+
+/* Copy component opaque data of component THIS into BUFFER
+ * if component THIS has opaque data.  Returns success or
+ * failure status.
+ */
+extern long prom_getcdata(void *buffer, pcomponent *this);
+
+/* Other misc. component routines. */
+extern pcomponent *prom_childadd(pcomponent *this, pcomponent *tmp, void *data);
+extern long prom_delcomponent(pcomponent *this);
+extern pcomponent *prom_componentbypath(char *path);
+
+/* This is called at prom_init time to identify the
+ * ARC architecture we are running on
+ */
+extern void prom_identify_arch(void);
+
+/* Environment variable routines. */
+extern PCHAR ArcGetEnvironmentVariable(PCHAR name);
+extern LONG ArcSetEnvironmentVariable(PCHAR name, PCHAR value);
+
+/* ARCS command line acquisition and parsing. */
+extern char *prom_getcmdline(void);
+extern void prom_init_cmdline(void);
+
+/* Acquiring info about the current time, etc. */
+extern struct linux_tinfo *prom_gettinfo(void);
+extern unsigned long prom_getrtime(void);
+
+/* File operations. */
+extern long prom_getvdirent(unsigned long fd, struct linux_vdirent *ent, unsigned long num, unsigned long *cnt);
+extern long prom_open(char *name, enum linux_omode md, unsigned long *fd);
+extern long prom_close(unsigned long fd);
+extern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
+extern long prom_getrstatus(unsigned long fd);
+extern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
+extern long prom_seek(unsigned long fd, struct linux_bigint *off, enum linux_seekmode sm);
+extern long prom_mount(char *name, enum linux_mountops op);
+extern long prom_getfinfo(unsigned long fd, struct linux_finfo *buf);
+extern long prom_setfinfo(unsigned long fd, unsigned long flags, unsigned long msk);
+
+/* Running stand-along programs. */
+extern long prom_load(char *name, unsigned long end, unsigned long *pc, unsigned long *eaddr);
+extern long prom_invoke(unsigned long pc, unsigned long sp, long argc, char **argv, char **envp);
+extern long prom_exec(char *name, long argc, char **argv, char **envp);
+
+/* Misc. routines. */
+extern VOID prom_halt(VOID) __attribute__((noreturn));
+extern VOID prom_powerdown(VOID) __attribute__((noreturn));
+extern VOID prom_restart(VOID) __attribute__((noreturn));
+extern VOID ArcReboot(VOID) __attribute__((noreturn));
+extern VOID ArcEnterInteractiveMode(VOID) __attribute__((noreturn));
+extern long prom_cfgsave(VOID);
+extern struct linux_sysid *prom_getsysid(VOID);
+extern VOID ArcFlushAllCaches(VOID);
+extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID);
+
+#endif /* _ASM_SGIALIB_H */