1 files changed, 107 insertions, 0 deletions

diff --git a/arch/mips/include/asm/sn/gda.h b/arch/mips/include/asm/sn/gda.h
new file mode 100644
index 000000000000..9cb6ff770915
--- /dev/null
+++ b/arch/mips/include/asm/sn/gda.h
@@ -0,0 +1,107 @@
+/*
+ * 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.
+ *
+ * Derived from IRIX <sys/SN/gda.h>.
+ *
+ * Copyright (C) 1992 - 1997, 2000 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 _ASM_SN_GDA_H
+#define _ASM_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
+
+#ifndef __ASSEMBLY__
+
+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 /* !__ASSEMBLY__ */
+/*
+ * 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 /* _ASM_SN_GDA_H */