/usr/src/linux-headers-5.15.0-190/arch/mips/include/asm
Edit: /usr/src/linux-headers-5.15.0-190/arch/mips/include/asm/sgiarcs.h (14022B)
/*
* 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.
*
* ARC firmware interface defines.
*
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
* Copyright (C) 1999, 2001 Ralf Baechle (ralf@gnu.org)
* Copyright (C) 1999 Silicon Graphics, Inc.
*/
#ifndef _ASM_SGIARCS_H
#define _ASM_SGIARCS_H
#include
#include
#include
/* Various ARCS error codes. */
#define PROM_ESUCCESS 0x00
#define PROM_E2BIG 0x01
#define PROM_EACCESS 0x02
#define PROM_EAGAIN 0x03
#define PROM_EBADF 0x04
#define PROM_EBUSY 0x05
#define PROM_EFAULT 0x06
#define PROM_EINVAL 0x07
#define PROM_EIO 0x08
#define PROM_EISDIR 0x09
#define PROM_EMFILE 0x0a
#define PROM_EMLINK 0x0b
#define PROM_ENAMETOOLONG 0x0c
#define PROM_ENODEV 0x0d
#define PROM_ENOENT 0x0e
#define PROM_ENOEXEC 0x0f
#define PROM_ENOMEM 0x10
#define PROM_ENOSPC 0x11
#define PROM_ENOTDIR 0x12
#define PROM_ENOTTY 0x13
#define PROM_ENXIO 0x14
#define PROM_EROFS 0x15
/* SGI ARCS specific errno's. */
#define PROM_EADDRNOTAVAIL 0x1f
#define PROM_ETIMEDOUT 0x20
#define PROM_ECONNABORTED 0x21
#define PROM_ENOCONNECT 0x22
/* Device classes, types, and identifiers for prom
* device inventory queries.
*/
enum linux_devclass {
system, processor, cache, adapter, controller, peripheral, memory
};
enum linux_devtypes {
/* Generic stuff. */
Arc, Cpu, Fpu,
/* Primary insn and data caches. */
picache, pdcache,
/* Secondary insn, data, and combined caches. */
sicache, sdcache, sccache,
memdev, eisa_adapter, tc_adapter, scsi_adapter, dti_adapter,
multifunc_adapter, dsk_controller, tp_controller, cdrom_controller,
worm_controller, serial_controller, net_controller, disp_controller,
parallel_controller, ptr_controller, kbd_controller, audio_controller,
misc_controller, disk_peripheral, flpy_peripheral, tp_peripheral,
modem_peripheral, monitor_peripheral, printer_peripheral,
ptr_peripheral, kbd_peripheral, term_peripheral, line_peripheral,
net_peripheral, misc_peripheral, anon
};
enum linux_identifier {
bogus, ronly, removable, consin, consout, input, output
};
/* A prom device tree component. */
struct linux_component {
enum linux_devclass class; /* node class */
enum linux_devtypes type; /* node type */
enum linux_identifier iflags; /* node flags */
USHORT vers; /* node version */
USHORT rev; /* node revision */
ULONG key; /* completely magic */
ULONG amask; /* XXX affinity mask??? */
ULONG cdsize; /* size of configuration data */
ULONG ilen; /* length of string identifier */
_PULONG iname; /* string identifier */
};
typedef struct linux_component pcomponent;
struct linux_sysid {
char vend[8], prod[8];
};
/* ARCS prom memory descriptors. */
enum arcs_memtypes {
arcs_eblock, /* exception block */
arcs_rvpage, /* ARCS romvec page */
arcs_fcontig, /* Contiguous and free */
arcs_free, /* Generic free memory */
arcs_bmem, /* Borken memory, don't use */
arcs_prog, /* A loaded program resides here */
arcs_atmp, /* ARCS temporary storage area, wish Sparc OpenBoot told this */
arcs_aperm, /* ARCS permanent storage... */
};
/* ARC has slightly different types than ARCS */
enum arc_memtypes {
arc_eblock, /* exception block */
arc_rvpage, /* romvec page */
arc_free, /* Generic free memory */
arc_bmem, /* Borken memory, don't use */
arc_prog, /* A loaded program resides here */
arc_atmp, /* temporary storage area */
arc_aperm, /* permanent storage */
arc_fcontig, /* Contiguous and free */
};
union linux_memtypes {
enum arcs_memtypes arcs;
enum arc_memtypes arc;
};
struct linux_mdesc {
union linux_memtypes type;
ULONG base;
ULONG pages;
};
/* Time of day descriptor. */
struct linux_tinfo {
unsigned short yr;
unsigned short mnth;
unsigned short day;
unsigned short hr;
unsigned short min;
unsigned short sec;
unsigned short msec;
};
/* ARCS virtual dirents. */
struct linux_vdirent {
ULONG namelen;
unsigned char attr;
char fname[32]; /* XXX empirical, should be a define */
};
/* Other stuff for files. */
enum linux_omode {
rdonly, wronly, rdwr, wronly_creat, rdwr_creat,
wronly_ssede, rdwr_ssede, dirent, dirent_creat
};
enum linux_seekmode {
absolute, relative
};
enum linux_mountops {
media_load, media_unload
};
/* This prom has a bolixed design. */
struct linux_bigint {
#ifdef __MIPSEL__
u32 lo;
s32 hi;
#else /* !(__MIPSEL__) */
s32 hi;
u32 lo;
#endif
};
struct linux_finfo {
struct linux_bigint begin;
struct linux_bigint end;
struct linux_bigint cur;
enum linux_devtypes dtype;
unsigned long namelen;
unsigned char attr;
char name[32]; /* XXX empirical, should be define */
};
/* This describes the vector containing function pointers to the ARC
firmware functions. */
struct linux_romvec {
LONG load; /* Load an executable image. */
LONG invoke; /* Invoke a standalong image. */
LONG exec; /* Load and begin execution of a
standalone image. */
LONG halt; /* Halt the machine. */
LONG pdown; /* Power down the machine. */
LONG restart; /* XXX soft reset??? */
LONG reboot; /* Reboot the machine. */
LONG imode; /* Enter PROM interactive mode. */
LONG _unused1; /* Was ReturnFromMain(). */
/* PROM device tree interface. */
LONG next_component;
LONG child_component;
LONG parent_component;
LONG component_data;
LONG child_add;
LONG comp_del;
LONG component_by_path;
/* Misc. stuff. */
LONG cfg_save;
LONG get_sysid;
/* Probing for memory. */
LONG get_mdesc;
LONG _unused2; /* was Signal() */
LONG get_tinfo;
LONG get_rtime;
/* File type operations. */
LONG get_vdirent;
LONG open;
LONG close;
LONG read;
LONG get_rstatus;
LONG write;
LONG seek;
LONG mount;
/* Dealing with firmware environment variables. */
LONG get_evar;
LONG set_evar;
LONG get_finfo;
LONG set_finfo;
/* Miscellaneous. */
LONG cache_flush;
LONG TestUnicodeCharacter; /* ARC; not sure if ARCS too */
LONG GetDisplayStatus;
};
/* The SGI ARCS parameter block is in a fixed location for standalone
* programs to access PROM facilities easily.
*/
typedef struct _SYSTEM_PARAMETER_BLOCK {
ULONG magic; /* magic cookie */
#define PROMBLOCK_MAGIC 0x53435241
ULONG len; /* length of parm block */
USHORT ver; /* ARCS firmware version */
USHORT rev; /* ARCS firmware revision */
_PLONG rs_block; /* Restart block. */
_PLONG dbg_block; /* Debug block. */
_PLONG gevect; /* XXX General vector??? */
_PLONG utlbvect; /* XXX UTLB vector??? */
ULONG rveclen; /* Size of romvec struct. */
_PVOID romvec; /* Function interface. */
ULONG pveclen; /* Length of private vector. */
_PVOID pvector; /* Private vector. */
ULONG adap_cnt; /* Adapter count. */
ULONG adap_typ0; /* First adapter type. */
ULONG adap_vcnt0; /* Adapter 0 vector count. */
_PVOID adap_vector; /* Adapter 0 vector ptr. */
ULONG adap_typ1; /* Second adapter type. */
ULONG adap_vcnt1; /* Adapter 1 vector count. */
_PVOID adap_vector1; /* Adapter 1 vector ptr. */
/* More adapter vectors go here... */
} SYSTEM_PARAMETER_BLOCK, *PSYSTEM_PARAMETER_BLOCK;
#define PROMBLOCK ((PSYSTEM_PARAMETER_BLOCK) (int)0xA0001000)
#define ROMVECTOR ((struct linux_romvec *) (long)(PROMBLOCK)->romvec)
/* Cache layout parameter block. */
union linux_cache_key {
struct param {
#ifdef __MIPSEL__
unsigned short size;
unsigned char lsize;
unsigned char bsize;
#else /* !(__MIPSEL__) */
unsigned char bsize;
unsigned char lsize;
unsigned short size;
#endif
} info;
unsigned long allinfo;
};
/* Configuration data. */
struct linux_cdata {
char *name;
int mlen;
enum linux_devtypes type;
};
/* Common SGI ARCS firmware file descriptors. */
#define SGIPROM_STDIN 0
#define SGIPROM_STDOUT 1
/* Common SGI ARCS firmware file types. */
#define SGIPROM_ROFILE 0x01 /* read-only file */
#define SGIPROM_HFILE 0x02 /* hidden file */
#define SGIPROM_SFILE 0x04 /* System file */
#define SGIPROM_AFILE 0x08 /* Archive file */
#define SGIPROM_DFILE 0x10 /* Directory file */
#define SGIPROM_DELFILE 0x20 /* Deleted file */
/* SGI ARCS boot record information. */
struct sgi_partition {
unsigned char flag;
#define SGIPART_UNUSED 0x00
#define SGIPART_ACTIVE 0x80
unsigned char shead, ssect, scyl; /* unused */
unsigned char systype; /* OS type, Irix or NT */
unsigned char ehead, esect, ecyl; /* unused */
unsigned char rsect0, rsect1, rsect2, rsect3;
unsigned char tsect0, tsect1, tsect2, tsect3;
};
#define SGIBBLOCK_MAGIC 0xaa55
#define SGIBBLOCK_MAXPART 0x0004
struct sgi_bootblock {
unsigned char _unused[446];
struct sgi_partition partitions[SGIBBLOCK_MAXPART];
unsigned short magic;
};
/* BIOS parameter block. */
struct sgi_bparm_block {
unsigned short bytes_sect; /* bytes per sector */
unsigned char sect_clust; /* sectors per cluster */
unsigned short sect_resv; /* reserved sectors */
unsigned char nfats; /* # of allocation tables */
unsigned short nroot_dirents; /* # of root directory entries */
unsigned short sect_volume; /* sectors in volume */
unsigned char media_type; /* media descriptor */
unsigned short sect_fat; /* sectors per allocation table */
unsigned short sect_track; /* sectors per track */
unsigned short nheads; /* # of heads */
unsigned short nhsects; /* # of hidden sectors */
};
struct sgi_bsector {
unsigned char jmpinfo[3];
unsigned char manuf_name[8];
struct sgi_bparm_block info;
};
/* Debugging block used with SGI symmon symbolic debugger. */
#define SMB_DEBUG_MAGIC 0xfeeddead
struct linux_smonblock {
unsigned long magic;
void (*handler)(void); /* Breakpoint routine. */
unsigned long dtable_base; /* Base addr of dbg table. */
int (*printf)(const char *fmt, ...);
unsigned long btable_base; /* Breakpoint table. */
unsigned long mpflushreqs; /* SMP cache flush request list. */
unsigned long ntab; /* Name table. */
unsigned long stab; /* Symbol table. */
int smax; /* Max # of symbols. */
};
/*
* Macros for calling a 32-bit ARC implementation from 64-bit code
*/
#if defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32)
extern long call_o32(long vec, void *stack, ...);
extern u64 o32_stk[4096];
#define O32_STK (&o32_stk[ARRAY_SIZE(o32_stk)])
#define ARC_CALL0(dest) \
({ long __res; \
long __vec = (long) romvec->dest; \
__res = call_o32(__vec, O32_STK); \
__res; \
})
#define ARC_CALL1(dest, a1) \
({ long __res; \
int __a1 = (int) (long) (a1); \
long __vec = (long) romvec->dest; \
__res = call_o32(__vec, O32_STK, __a1); \
__res; \
})
#define ARC_CALL2(dest, a1, a2) \
({ long __res; \
int __a1 = (int) (long) (a1); \
int __a2 = (int) (long) (a2); \
long __vec = (long) romvec->dest; \
__res = call_o32(__vec, O32_STK, __a1, __a2); \
__res; \
})
#define ARC_CALL3(dest, a1, a2, a3) \
({ long __res; \
int __a1 = (int) (long) (a1); \
int __a2 = (int) (long) (a2); \
int __a3 = (int) (long) (a3); \
long __vec = (long) romvec->dest; \
__res = call_o32(__vec, O32_STK, __a1, __a2, __a3); \
__res; \
})
#define ARC_CALL4(dest, a1, a2, a3, a4) \
({ long __res; \
int __a1 = (int) (long) (a1); \
int __a2 = (int) (long) (a2); \
int __a3 = (int) (long) (a3); \
int __a4 = (int) (long) (a4); \
long __vec = (long) romvec->dest; \
__res = call_o32(__vec, O32_STK, __a1, __a2, __a3, __a4); \
__res; \
})
#define ARC_CALL5(dest, a1, a2, a3, a4, a5) \
({ long __res; \
int __a1 = (int) (long) (a1); \
int __a2 = (int) (long) (a2); \
int __a3 = (int) (long) (a3); \
int __a4 = (int) (long) (a4); \
int __a5 = (int) (long) (a5); \
long __vec = (long) romvec->dest; \
__res = call_o32(__vec, O32_STK, __a1, __a2, __a3, __a4, __a5); \
__res; \
})
#endif /* defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32) */
#if (defined(CONFIG_32BIT) && defined(CONFIG_FW_ARC32)) || \
(defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC64))
#define ARC_CALL0(dest) \
({ long __res; \
long (*__vec)(void) = (void *) romvec->dest; \
\
__res = __vec(); \
__res; \
})
#define ARC_CALL1(dest, a1) \
({ long __res; \
long __a1 = (long) (a1); \
long (*__vec)(long) = (void *) romvec->dest; \
\
__res = __vec(__a1); \
__res; \
})
#define ARC_CALL2(dest, a1, a2) \
({ long __res; \
long __a1 = (long) (a1); \
long __a2 = (long) (a2); \
long (*__vec)(long, long) = (void *) romvec->dest; \
\
__res = __vec(__a1, __a2); \
__res; \
})
#define ARC_CALL3(dest, a1, a2, a3) \
({ long __res; \
long __a1 = (long) (a1); \
long __a2 = (long) (a2); \
long __a3 = (long) (a3); \
long (*__vec)(long, long, long) = (void *) romvec->dest; \
\
__res = __vec(__a1, __a2, __a3); \
__res; \
})
#define ARC_CALL4(dest, a1, a2, a3, a4) \
({ long __res; \
long __a1 = (long) (a1); \
long __a2 = (long) (a2); \
long __a3 = (long) (a3); \
long __a4 = (long) (a4); \
long (*__vec)(long, long, long, long) = (void *) romvec->dest; \
\
__res = __vec(__a1, __a2, __a3, __a4); \
__res; \
})
#define ARC_CALL5(dest, a1, a2, a3, a4, a5) \
({ long __res; \
long __a1 = (long) (a1); \
long __a2 = (long) (a2); \
long __a3 = (long) (a3); \
long __a4 = (long) (a4); \
long __a5 = (long) (a5); \
long (*__vec)(long, long, long, long, long); \
__vec = (void *) romvec->dest; \
\
__res = __vec(__a1, __a2, __a3, __a4, __a5); \
__res; \
})
#endif /* both kernel and ARC either 32-bit or 64-bit */
#endif /* _ASM_SGIARCS_H */