Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 505 insertions, 0 deletions

diff --git a/arch/mips/include/asm/sgiarcs.h b/arch/mips/include/asm/sgiarcs.h
new file mode 100644
index 0000000000..e1512cab18
--- /dev/null
+++ b/arch/mips/include/asm/sgiarcs.h
@@ -0,0 +1,505 @@
+/*
+ * 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 <linux/kernel.h>
+
+#include <asm/types.h>
+#include <asm/fw/arc/types.h>
+
+/* 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 */