Steal Irix procedures to set up multiple nodes.

1 files changed, 112 insertions, 0 deletions

diff --git a/include/asm-mips64/sn/gda.h b/include/asm-mips64/sn/gda.h
new file mode 100644
index 000000000..8ae09507a
--- /dev/null
+++ b/include/asm-mips64/sn/gda.h
@@ -0,0 +1,112 @@
+/**************************************************************************
+ *                                                                        *
+ *               Copyright (C) 1992-1997, Silicon Graphics, Inc.          *
+ *                                                                        *
+ *  These coded instructions, statements, and computer programs  contain  *
+ *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
+ *  are protected by Federal copyright law.  They  may  not be disclosed  *
+ *  to  third  parties  or copied or duplicated in any form, in whole or  *
+ *  in part, without the prior written consent of Silicon Graphics, Inc.  *
+ *                                                                        *
+ **************************************************************************/
+
+/*
+ * gda.h -- Contains the data structure for the global data area,
+ * 	The GDA contains information communicated between the
+ *	PROM, SYMMON, and the kernel. 
+ */
+
+#ifndef __SYS_SN_GDA_H__
+#define __SYS_SN_GDA_H__
+
+#include <asm/sn/addrs.h>
+
+#define GDA_MAGIC	0x58464552
+
+/*
+ * GDA Version History
+ *
+ * Version #	| Change
+ * -------------+-------------------------------------------------------
+ * 	1	| Initial SN0 version 
+ * 	2	| Prom sets g_partid field to the partition number. 0 IS
+ *		| a valid partition #. 
+ */
+
+#define GDA_VERSION	2	/* Current GDA version # */
+
+#define G_MAGICOFF	0
+#define G_VERSIONOFF	4
+#define G_PROMOPOFF	6
+#define G_MASTEROFF	8
+#define G_VDSOFF	12
+#define G_HKDNORMOFF	16
+#define G_HKDUTLBOFF	24
+#define G_HKDXUTLBOFF	32
+#define G_PARTIDOFF	40
+#define G_TABLEOFF	128
+
+#ifdef _LANGUAGE_C
+
+typedef struct gda {
+	u32	g_magic;	/* GDA magic number */
+	u16	g_version;	/* Version of this structure */
+	u16	g_masterid;	/* The NASID:CPUNUM of the master cpu */
+	u32	g_promop;	/* Passes requests from the kernel to prom */
+	u32	g_vds;		/* Store the virtual dipswitches here */
+	void	**g_hooked_norm;/* ptr to pda loc for norm hndlr */
+	void	**g_hooked_utlb;/* ptr to pda loc for utlb hndlr */
+	void	**g_hooked_xtlb;/* ptr to pda loc for xtlb hndlr */
+	int	g_partid;	/* partition id */
+	int	g_symmax;	/* Max symbols in name table. */
+	void	*g_dbstab;	/* Address of idbg symbol table */
+	char	*g_nametab;	/* Address of idbg name table */
+	void	*g_ktext_repmask;
+				/* Pointer to a mask of nodes with copies
+				 * of the kernel. */
+	char	g_padding[56];	/* pad out to 128 bytes */
+	nasid_t	g_nasidtable[MAX_COMPACT_NODES]; /* NASID of each node,
+						  * indexed by cnodeid.
+						  */
+} gda_t;
+
+#define GDA ((gda_t*) GDA_ADDR(get_nasid()))
+
+#endif /* __LANGUAGE_C */
+/*
+ * Define:	PART_GDA_VERSION
+ * Purpose:	Define the minimum version of the GDA required, lower 
+ *		revisions assume GDA is NOT set up, and read partition
+ *		information from the board info.
+ */
+#define	PART_GDA_VERSION	2
+
+/*
+ * The following requests can be sent to the PROM during startup.
+ */
+
+#define PROMOP_MAGIC		0x0ead0000
+#define PROMOP_MAGIC_MASK	0x0fff0000
+
+#define PROMOP_BIST_SHIFT       11
+#define PROMOP_BIST_MASK        (0x3 << 11)
+
+#define PROMOP_REG		PI_ERR_STACK_ADDR_A
+
+#define PROMOP_INVALID		(PROMOP_MAGIC | 0x00)
+#define PROMOP_HALT             (PROMOP_MAGIC | 0x10)
+#define PROMOP_POWERDOWN        (PROMOP_MAGIC | 0x20)
+#define PROMOP_RESTART          (PROMOP_MAGIC | 0x30)
+#define PROMOP_REBOOT           (PROMOP_MAGIC | 0x40)
+#define PROMOP_IMODE            (PROMOP_MAGIC | 0x50)
+
+#define PROMOP_CMD_MASK		0x00f0
+#define PROMOP_OPTIONS_MASK	0xfff0
+
+#define PROMOP_SKIP_DIAGS	0x0100		/* don't bother running diags */
+#define PROMOP_SKIP_MEMINIT	0x0200		/* don't bother initing memory */
+#define PROMOP_SKIP_DEVINIT	0x0400		/* don't bother initing devices */
+#define PROMOP_BIST1		0x0800		/* keep track of which BIST ran */
+#define PROMOP_BIST2		0x1000		/* keep track of which BIST ran */
+
+#endif /* __SYS_SN_GDA_H__ */