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Diffstat (limited to 'arch/mips/include/asm/sn/gda.h')
| -rw-r--r-- | arch/mips/include/asm/sn/gda.h | 107 |
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 000000000..85fa1b5f6 --- /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 */ |