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Diffstat (limited to 'arch/mips/include/asm/sgialib.h')
| -rw-r--r-- | arch/mips/include/asm/sgialib.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/mips/include/asm/sgialib.h b/arch/mips/include/asm/sgialib.h new file mode 100644 index 000000000000..bfce5c786f1c --- /dev/null +++ b/arch/mips/include/asm/sgialib.h @@ -0,0 +1,124 @@ +/* + * 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); + +/* 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 */ |