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Diffstat (limited to 'include/asm-mips64/sgialib.h')
-rw-r--r-- | include/asm-mips64/sgialib.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/include/asm-mips64/sgialib.h b/include/asm-mips64/sgialib.h new file mode 100644 index 000000000..6f7b29019 --- /dev/null +++ b/include/asm-mips64/sgialib.h @@ -0,0 +1,122 @@ +/* $Id$ + * sgialib.h: SGI ARCS firmware interface library for the Linux kernel. + * + * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) + */ + +#ifndef _ASM_SGIALIB_H +#define _ASM_SGIALIB_H + +#include <asm/sgiarcs.h> + +extern struct linux_promblock *sgi_pblock; +extern struct linux_romvec *romvec; +extern int prom_argc; +extern char **prom_argv, **prom_envp; + +extern int prom_flags; +#define PROM_FLAG_ARCS 1 + +/* Init the PROM library and it's internal data structures. Called + * at boot time from head.S before start_kernel is invoked. + */ +extern int prom_init(int argc, char **argv, char **envp); + +/* 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 { + unsigned long base; /* Within KSEG0. */ + unsigned int size; /* In bytes. */ + unsigned int 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); + +/* Returns pointer to PROM physical memory block array. */ +extern struct prom_pmemblock *prom_getpblock_array(void); + +/* PROM device tree library routines. */ +#define PROM_NULL_COMPONENT ((pcomponent *) 0) + +/* Get sibling component of THIS. */ +extern pcomponent *prom_getsibling(pcomponent *this); + +/* Get child component of THIS. */ +extern pcomponent *prom_getchild(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); + +/* Environemt variable routines. */ +extern char *prom_getenv(char *name); +extern long prom_setenv(char *name, char *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 prom_read(unsigned long fd, void *buf, unsigned long num, unsigned long *cnt); +extern long prom_getrstatus(unsigned long fd); +extern long prom_write(unsigned long fd, void *buf, unsigned long num, unsigned long *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 prom_reboot(void) __attribute__((noreturn)); +extern void prom_imode(void) __attribute__((noreturn)); +extern long prom_cfgsave(void); +extern struct linux_sysid *prom_getsysid(void); +extern void prom_cacheflush(void); + +#endif /* _ASM_SGIALIB_H */ |