549 lines
16 KiB
C
549 lines
16 KiB
C
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* ARC firmware interface defines.
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*
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* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
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* Copyright (C) 1999, 2001 Ralf Baechle (ralf@gnu.org)
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* Copyright (C) 1999 Silicon Graphics, Inc.
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*/
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#ifndef _ASM_SGIARCS_H
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#define _ASM_SGIARCS_H
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#include <asm/types.h>
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#include <asm/fw/arc/types.h>
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/* Various ARCS error codes. */
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#define PROM_ESUCCESS 0x00
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#define PROM_E2BIG 0x01
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#define PROM_EACCESS 0x02
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#define PROM_EAGAIN 0x03
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#define PROM_EBADF 0x04
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#define PROM_EBUSY 0x05
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#define PROM_EFAULT 0x06
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#define PROM_EINVAL 0x07
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#define PROM_EIO 0x08
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#define PROM_EISDIR 0x09
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#define PROM_EMFILE 0x0a
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#define PROM_EMLINK 0x0b
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#define PROM_ENAMETOOLONG 0x0c
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#define PROM_ENODEV 0x0d
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#define PROM_ENOENT 0x0e
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#define PROM_ENOEXEC 0x0f
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#define PROM_ENOMEM 0x10
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#define PROM_ENOSPC 0x11
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#define PROM_ENOTDIR 0x12
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#define PROM_ENOTTY 0x13
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#define PROM_ENXIO 0x14
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#define PROM_EROFS 0x15
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/* SGI ARCS specific errno's. */
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#define PROM_EADDRNOTAVAIL 0x1f
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#define PROM_ETIMEDOUT 0x20
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#define PROM_ECONNABORTED 0x21
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#define PROM_ENOCONNECT 0x22
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/* Device classes, types, and identifiers for prom
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* device inventory queries.
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*/
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enum linux_devclass {
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system, processor, cache, adapter, controller, peripheral, memory
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};
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enum linux_devtypes {
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/* Generic stuff. */
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Arc, Cpu, Fpu,
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/* Primary insn and data caches. */
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picache, pdcache,
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/* Secondary insn, data, and combined caches. */
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sicache, sdcache, sccache,
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memdev, eisa_adapter, tc_adapter, scsi_adapter, dti_adapter,
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multifunc_adapter, dsk_controller, tp_controller, cdrom_controller,
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worm_controller, serial_controller, net_controller, disp_controller,
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parallel_controller, ptr_controller, kbd_controller, audio_controller,
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misc_controller, disk_peripheral, flpy_peripheral, tp_peripheral,
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modem_peripheral, monitor_peripheral, printer_peripheral,
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ptr_peripheral, kbd_peripheral, term_peripheral, line_peripheral,
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net_peripheral, misc_peripheral, anon
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};
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enum linux_identifier {
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bogus, ronly, removable, consin, consout, input, output
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};
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/* A prom device tree component. */
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struct linux_component {
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enum linux_devclass class; /* node class */
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enum linux_devtypes type; /* node type */
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enum linux_identifier iflags; /* node flags */
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USHORT vers; /* node version */
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USHORT rev; /* node revision */
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ULONG key; /* completely magic */
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ULONG amask; /* XXX affinity mask??? */
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ULONG cdsize; /* size of configuration data */
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ULONG ilen; /* length of string identifier */
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_PULONG iname; /* string identifier */
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};
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typedef struct linux_component pcomponent;
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struct linux_sysid {
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char vend[8], prod[8];
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};
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/* ARCS prom memory descriptors. */
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enum arcs_memtypes {
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arcs_eblock, /* exception block */
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arcs_rvpage, /* ARCS romvec page */
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arcs_fcontig, /* Contiguous and free */
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arcs_free, /* Generic free memory */
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arcs_bmem, /* Borken memory, don't use */
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arcs_prog, /* A loaded program resides here */
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arcs_atmp, /* ARCS temporary storage area, wish Sparc OpenBoot told this */
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arcs_aperm, /* ARCS permanent storage... */
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};
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/* ARC has slightly different types than ARCS */
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enum arc_memtypes {
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arc_eblock, /* exception block */
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arc_rvpage, /* romvec page */
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arc_free, /* Generic free memory */
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arc_bmem, /* Borken memory, don't use */
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arc_prog, /* A loaded program resides here */
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arc_atmp, /* temporary storage area */
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arc_aperm, /* permanent storage */
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arc_fcontig, /* Contiguous and free */
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};
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union linux_memtypes {
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enum arcs_memtypes arcs;
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enum arc_memtypes arc;
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};
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struct linux_mdesc {
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union linux_memtypes type;
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ULONG base;
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ULONG pages;
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};
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/* Time of day descriptor. */
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struct linux_tinfo {
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unsigned short yr;
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unsigned short mnth;
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unsigned short day;
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unsigned short hr;
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unsigned short min;
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unsigned short sec;
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unsigned short msec;
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};
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/* ARCS virtual dirents. */
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struct linux_vdirent {
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ULONG namelen;
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unsigned char attr;
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char fname[32]; /* XXX imperical, should be a define */
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};
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/* Other stuff for files. */
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enum linux_omode {
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rdonly, wronly, rdwr, wronly_creat, rdwr_creat,
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wronly_ssede, rdwr_ssede, dirent, dirent_creat
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};
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enum linux_seekmode {
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absolute, relative
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};
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enum linux_mountops {
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media_load, media_unload
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};
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/* This prom has a bolixed design. */
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struct linux_bigint {
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#ifdef __MIPSEL__
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u32 lo;
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s32 hi;
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#else /* !(__MIPSEL__) */
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s32 hi;
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u32 lo;
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#endif
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};
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struct linux_finfo {
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struct linux_bigint begin;
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struct linux_bigint end;
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struct linux_bigint cur;
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enum linux_devtypes dtype;
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unsigned long namelen;
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unsigned char attr;
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char name[32]; /* XXX imperical, should be define */
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};
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/* This describes the vector containing function pointers to the ARC
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firmware functions. */
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struct linux_romvec {
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LONG load; /* Load an executable image. */
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LONG invoke; /* Invoke a standalong image. */
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LONG exec; /* Load and begin execution of a
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standalone image. */
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LONG halt; /* Halt the machine. */
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LONG pdown; /* Power down the machine. */
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LONG restart; /* XXX soft reset??? */
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LONG reboot; /* Reboot the machine. */
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LONG imode; /* Enter PROM interactive mode. */
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LONG _unused1; /* Was ReturnFromMain(). */
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/* PROM device tree interface. */
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LONG next_component;
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LONG child_component;
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LONG parent_component;
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LONG component_data;
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LONG child_add;
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LONG comp_del;
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LONG component_by_path;
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/* Misc. stuff. */
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LONG cfg_save;
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LONG get_sysid;
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/* Probing for memory. */
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LONG get_mdesc;
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LONG _unused2; /* was Signal() */
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LONG get_tinfo;
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LONG get_rtime;
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/* File type operations. */
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LONG get_vdirent;
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LONG open;
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LONG close;
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LONG read;
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LONG get_rstatus;
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LONG write;
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LONG seek;
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LONG mount;
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/* Dealing with firmware environment variables. */
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LONG get_evar;
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LONG set_evar;
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LONG get_finfo;
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LONG set_finfo;
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/* Miscellaneous. */
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LONG cache_flush;
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LONG TestUnicodeCharacter; /* ARC; not sure if ARCS too */
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LONG GetDisplayStatus;
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};
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/* The SGI ARCS parameter block is in a fixed location for standalone
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* programs to access PROM facilities easily.
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*/
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typedef struct _SYSTEM_PARAMETER_BLOCK {
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ULONG magic; /* magic cookie */
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#define PROMBLOCK_MAGIC 0x53435241
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ULONG len; /* length of parm block */
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USHORT ver; /* ARCS firmware version */
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USHORT rev; /* ARCS firmware revision */
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_PLONG rs_block; /* Restart block. */
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_PLONG dbg_block; /* Debug block. */
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_PLONG gevect; /* XXX General vector??? */
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_PLONG utlbvect; /* XXX UTLB vector??? */
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ULONG rveclen; /* Size of romvec struct. */
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_PVOID romvec; /* Function interface. */
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ULONG pveclen; /* Length of private vector. */
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_PVOID pvector; /* Private vector. */
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ULONG adap_cnt; /* Adapter count. */
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ULONG adap_typ0; /* First adapter type. */
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ULONG adap_vcnt0; /* Adapter 0 vector count. */
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_PVOID adap_vector; /* Adapter 0 vector ptr. */
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ULONG adap_typ1; /* Second adapter type. */
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ULONG adap_vcnt1; /* Adapter 1 vector count. */
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_PVOID adap_vector1; /* Adapter 1 vector ptr. */
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/* More adapter vectors go here... */
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} SYSTEM_PARAMETER_BLOCK, *PSYSTEM_PARAMETER_BLOCK;
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#define PROMBLOCK ((PSYSTEM_PARAMETER_BLOCK) (int)0xA0001000)
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#define ROMVECTOR ((struct linux_romvec *) (long)(PROMBLOCK)->romvec)
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/* Cache layout parameter block. */
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union linux_cache_key {
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struct param {
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#ifdef __MIPSEL__
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unsigned short size;
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unsigned char lsize;
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unsigned char bsize;
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#else /* !(__MIPSEL__) */
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unsigned char bsize;
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unsigned char lsize;
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unsigned short size;
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#endif
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} info;
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unsigned long allinfo;
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};
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/* Configuration data. */
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struct linux_cdata {
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char *name;
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int mlen;
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enum linux_devtypes type;
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};
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/* Common SGI ARCS firmware file descriptors. */
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#define SGIPROM_STDIN 0
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#define SGIPROM_STDOUT 1
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/* Common SGI ARCS firmware file types. */
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#define SGIPROM_ROFILE 0x01 /* read-only file */
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#define SGIPROM_HFILE 0x02 /* hidden file */
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#define SGIPROM_SFILE 0x04 /* System file */
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#define SGIPROM_AFILE 0x08 /* Archive file */
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#define SGIPROM_DFILE 0x10 /* Directory file */
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#define SGIPROM_DELFILE 0x20 /* Deleted file */
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/* SGI ARCS boot record information. */
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struct sgi_partition {
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unsigned char flag;
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#define SGIPART_UNUSED 0x00
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#define SGIPART_ACTIVE 0x80
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unsigned char shead, ssect, scyl; /* unused */
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unsigned char systype; /* OS type, Irix or NT */
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unsigned char ehead, esect, ecyl; /* unused */
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unsigned char rsect0, rsect1, rsect2, rsect3;
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unsigned char tsect0, tsect1, tsect2, tsect3;
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};
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#define SGIBBLOCK_MAGIC 0xaa55
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#define SGIBBLOCK_MAXPART 0x0004
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struct sgi_bootblock {
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unsigned char _unused[446];
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struct sgi_partition partitions[SGIBBLOCK_MAXPART];
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unsigned short magic;
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};
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/* BIOS parameter block. */
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struct sgi_bparm_block {
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unsigned short bytes_sect; /* bytes per sector */
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unsigned char sect_clust; /* sectors per cluster */
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unsigned short sect_resv; /* reserved sectors */
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unsigned char nfats; /* # of allocation tables */
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unsigned short nroot_dirents; /* # of root directory entries */
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unsigned short sect_volume; /* sectors in volume */
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unsigned char media_type; /* media descriptor */
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unsigned short sect_fat; /* sectors per allocation table */
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unsigned short sect_track; /* sectors per track */
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unsigned short nheads; /* # of heads */
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unsigned short nhsects; /* # of hidden sectors */
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};
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struct sgi_bsector {
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unsigned char jmpinfo[3];
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unsigned char manuf_name[8];
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struct sgi_bparm_block info;
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};
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/* Debugging block used with SGI symmon symbolic debugger. */
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#define SMB_DEBUG_MAGIC 0xfeeddead
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struct linux_smonblock {
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unsigned long magic;
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void (*handler)(void); /* Breakpoint routine. */
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unsigned long dtable_base; /* Base addr of dbg table. */
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int (*printf)(const char *fmt, ...);
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unsigned long btable_base; /* Breakpoint table. */
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unsigned long mpflushreqs; /* SMP cache flush request list. */
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unsigned long ntab; /* Name table. */
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unsigned long stab; /* Symbol table. */
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int smax; /* Max # of symbols. */
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};
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/*
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* Macros for calling a 32-bit ARC implementation from 64-bit code
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*/
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#if defined(CONFIG_64BIT) && defined(CONFIG_ARC32)
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#define __arc_clobbers \
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"$2", "$3" /* ... */, "$8", "$9", "$10", "$11", \
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"$12", "$13", "$14", "$15", "$16", "$24", "$25", "$31"
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#define ARC_CALL0(dest) \
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({ long __res; \
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long __vec = (long) romvec->dest; \
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__asm__ __volatile__( \
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||
|
|
"dsubu\t$29, 32\n\t" \
|
||
|
|
"jalr\t%1\n\t" \
|
||
|
|
"daddu\t$29, 32\n\t" \
|
||
|
|
"move\t%0, $2" \
|
||
|
|
: "=r" (__res), "=r" (__vec) \
|
||
|
|
: "1" (__vec) \
|
||
|
|
: __arc_clobbers, "$4", "$5", "$6", "$7"); \
|
||
|
|
(unsigned long) __res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define ARC_CALL1(dest, a1) \
|
||
|
|
({ long __res; \
|
||
|
|
register signed int __a1 __asm__("$4") = (int) (long) (a1); \
|
||
|
|
long __vec = (long) romvec->dest; \
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
"dsubu\t$29, 32\n\t" \
|
||
|
|
"jalr\t%1\n\t" \
|
||
|
|
"daddu\t$29, 32\n\t" \
|
||
|
|
"move\t%0, $2" \
|
||
|
|
: "=r" (__res), "=r" (__vec) \
|
||
|
|
: "1" (__vec), "r" (__a1) \
|
||
|
|
: __arc_clobbers, "$5", "$6", "$7"); \
|
||
|
|
(unsigned long) __res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define ARC_CALL2(dest, a1, a2) \
|
||
|
|
({ long __res; \
|
||
|
|
register signed int __a1 __asm__("$4") = (int) (long) (a1); \
|
||
|
|
register signed int __a2 __asm__("$5") = (int) (long) (a2); \
|
||
|
|
long __vec = (long) romvec->dest; \
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
"dsubu\t$29, 32\n\t" \
|
||
|
|
"jalr\t%1\n\t" \
|
||
|
|
"daddu\t$29, 32\n\t" \
|
||
|
|
"move\t%0, $2" \
|
||
|
|
: "=r" (__res), "=r" (__vec) \
|
||
|
|
: "1" (__vec), "r" (__a1), "r" (__a2) \
|
||
|
|
: __arc_clobbers, "$6", "$7"); \
|
||
|
|
__res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define ARC_CALL3(dest, a1, a2, a3) \
|
||
|
|
({ long __res; \
|
||
|
|
register signed int __a1 __asm__("$4") = (int) (long) (a1); \
|
||
|
|
register signed int __a2 __asm__("$5") = (int) (long) (a2); \
|
||
|
|
register signed int __a3 __asm__("$6") = (int) (long) (a3); \
|
||
|
|
long __vec = (long) romvec->dest; \
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
"dsubu\t$29, 32\n\t" \
|
||
|
|
"jalr\t%1\n\t" \
|
||
|
|
"daddu\t$29, 32\n\t" \
|
||
|
|
"move\t%0, $2" \
|
||
|
|
: "=r" (__res), "=r" (__vec) \
|
||
|
|
: "1" (__vec), "r" (__a1), "r" (__a2), "r" (__a3) \
|
||
|
|
: __arc_clobbers, "$7"); \
|
||
|
|
__res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define ARC_CALL4(dest, a1, a2, a3, a4) \
|
||
|
|
({ long __res; \
|
||
|
|
register signed int __a1 __asm__("$4") = (int) (long) (a1); \
|
||
|
|
register signed int __a2 __asm__("$5") = (int) (long) (a2); \
|
||
|
|
register signed int __a3 __asm__("$6") = (int) (long) (a3); \
|
||
|
|
register signed int __a4 __asm__("$7") = (int) (long) (a4); \
|
||
|
|
long __vec = (long) romvec->dest; \
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
"dsubu\t$29, 32\n\t" \
|
||
|
|
"jalr\t%1\n\t" \
|
||
|
|
"daddu\t$29, 32\n\t" \
|
||
|
|
"move\t%0, $2" \
|
||
|
|
: "=r" (__res), "=r" (__vec) \
|
||
|
|
: "1" (__vec), "r" (__a1), "r" (__a2), "r" (__a3), \
|
||
|
|
"r" (__a4) \
|
||
|
|
: __arc_clobbers); \
|
||
|
|
__res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define ARC_CALL5(dest, a1, a2, a3, a4, a5) \
|
||
|
|
({ long __res; \
|
||
|
|
register signed int __a1 __asm__("$4") = (int) (long) (a1); \
|
||
|
|
register signed int __a2 __asm__("$5") = (int) (long) (a2); \
|
||
|
|
register signed int __a3 __asm__("$6") = (int) (long) (a3); \
|
||
|
|
register signed int __a4 __asm__("$7") = (int) (long) (a4); \
|
||
|
|
register signed int __a5 = (int) (long) (a5); \
|
||
|
|
long __vec = (long) romvec->dest; \
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
"dsubu\t$29, 32\n\t" \
|
||
|
|
"sw\t%7, 16($29)\n\t" \
|
||
|
|
"jalr\t%1\n\t" \
|
||
|
|
"daddu\t$29, 32\n\t" \
|
||
|
|
"move\t%0, $2" \
|
||
|
|
: "=r" (__res), "=r" (__vec) \
|
||
|
|
: "1" (__vec), \
|
||
|
|
"r" (__a1), "r" (__a2), "r" (__a3), "r" (__a4), \
|
||
|
|
"r" (__a5) \
|
||
|
|
: __arc_clobbers); \
|
||
|
|
__res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#endif /* defined(CONFIG_64BIT) && defined(CONFIG_ARC32) */
|
||
|
|
|
||
|
|
#if (defined(CONFIG_32BIT) && defined(CONFIG_ARC32)) || \
|
||
|
|
(defined(CONFIG_64BIT) && defined(CONFIG_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 */
|