1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 3*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 4*4882a593Smuzhiyun * for more details. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Derived from IRIX <sys/SN/gda.h>. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 1992 - 1997, 2000 Silicon Graphics, Inc. 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * gda.h -- Contains the data structure for the global data area, 11*4882a593Smuzhiyun * The GDA contains information communicated between the 12*4882a593Smuzhiyun * PROM, SYMMON, and the kernel. 13*4882a593Smuzhiyun */ 14*4882a593Smuzhiyun #ifndef _ASM_SN_GDA_H 15*4882a593Smuzhiyun #define _ASM_SN_GDA_H 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun #include <asm/sn/addrs.h> 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define GDA_MAGIC 0x58464552 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* 22*4882a593Smuzhiyun * GDA Version History 23*4882a593Smuzhiyun * 24*4882a593Smuzhiyun * Version # | Change 25*4882a593Smuzhiyun * -------------+------------------------------------------------------- 26*4882a593Smuzhiyun * 1 | Initial SN0 version 27*4882a593Smuzhiyun * 2 | Prom sets g_partid field to the partition number. 0 IS 28*4882a593Smuzhiyun * | a valid partition #. 29*4882a593Smuzhiyun */ 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #define GDA_VERSION 2 /* Current GDA version # */ 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define G_MAGICOFF 0 34*4882a593Smuzhiyun #define G_VERSIONOFF 4 35*4882a593Smuzhiyun #define G_PROMOPOFF 6 36*4882a593Smuzhiyun #define G_MASTEROFF 8 37*4882a593Smuzhiyun #define G_VDSOFF 12 38*4882a593Smuzhiyun #define G_HKDNORMOFF 16 39*4882a593Smuzhiyun #define G_HKDUTLBOFF 24 40*4882a593Smuzhiyun #define G_HKDXUTLBOFF 32 41*4882a593Smuzhiyun #define G_PARTIDOFF 40 42*4882a593Smuzhiyun #define G_TABLEOFF 128 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun typedef struct gda { 47*4882a593Smuzhiyun u32 g_magic; /* GDA magic number */ 48*4882a593Smuzhiyun u16 g_version; /* Version of this structure */ 49*4882a593Smuzhiyun u16 g_masterid; /* The NASID:CPUNUM of the master cpu */ 50*4882a593Smuzhiyun u32 g_promop; /* Passes requests from the kernel to prom */ 51*4882a593Smuzhiyun u32 g_vds; /* Store the virtual dipswitches here */ 52*4882a593Smuzhiyun void **g_hooked_norm;/* ptr to pda loc for norm hndlr */ 53*4882a593Smuzhiyun void **g_hooked_utlb;/* ptr to pda loc for utlb hndlr */ 54*4882a593Smuzhiyun void **g_hooked_xtlb;/* ptr to pda loc for xtlb hndlr */ 55*4882a593Smuzhiyun int g_partid; /* partition id */ 56*4882a593Smuzhiyun int g_symmax; /* Max symbols in name table. */ 57*4882a593Smuzhiyun void *g_dbstab; /* Address of idbg symbol table */ 58*4882a593Smuzhiyun char *g_nametab; /* Address of idbg name table */ 59*4882a593Smuzhiyun void *g_ktext_repmask; 60*4882a593Smuzhiyun /* Pointer to a mask of nodes with copies 61*4882a593Smuzhiyun * of the kernel. */ 62*4882a593Smuzhiyun char g_padding[56]; /* pad out to 128 bytes */ 63*4882a593Smuzhiyun nasid_t g_nasidtable[MAX_NUMNODES]; /* NASID of each node */ 64*4882a593Smuzhiyun } gda_t; 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun #define GDA ((gda_t*) GDA_ADDR(get_nasid())) 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun #endif /* !__ASSEMBLY__ */ 69*4882a593Smuzhiyun /* 70*4882a593Smuzhiyun * Define: PART_GDA_VERSION 71*4882a593Smuzhiyun * Purpose: Define the minimum version of the GDA required, lower 72*4882a593Smuzhiyun * revisions assume GDA is NOT set up, and read partition 73*4882a593Smuzhiyun * information from the board info. 74*4882a593Smuzhiyun */ 75*4882a593Smuzhiyun #define PART_GDA_VERSION 2 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun /* 78*4882a593Smuzhiyun * The following requests can be sent to the PROM during startup. 79*4882a593Smuzhiyun */ 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun #define PROMOP_MAGIC 0x0ead0000 82*4882a593Smuzhiyun #define PROMOP_MAGIC_MASK 0x0fff0000 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun #define PROMOP_BIST_SHIFT 11 85*4882a593Smuzhiyun #define PROMOP_BIST_MASK (0x3 << 11) 86*4882a593Smuzhiyun 87*4882a593Smuzhiyun #define PROMOP_REG PI_ERR_STACK_ADDR_A 88*4882a593Smuzhiyun 89*4882a593Smuzhiyun #define PROMOP_INVALID (PROMOP_MAGIC | 0x00) 90*4882a593Smuzhiyun #define PROMOP_HALT (PROMOP_MAGIC | 0x10) 91*4882a593Smuzhiyun #define PROMOP_POWERDOWN (PROMOP_MAGIC | 0x20) 92*4882a593Smuzhiyun #define PROMOP_RESTART (PROMOP_MAGIC | 0x30) 93*4882a593Smuzhiyun #define PROMOP_REBOOT (PROMOP_MAGIC | 0x40) 94*4882a593Smuzhiyun #define PROMOP_IMODE (PROMOP_MAGIC | 0x50) 95*4882a593Smuzhiyun 96*4882a593Smuzhiyun #define PROMOP_CMD_MASK 0x00f0 97*4882a593Smuzhiyun #define PROMOP_OPTIONS_MASK 0xfff0 98*4882a593Smuzhiyun 99*4882a593Smuzhiyun #define PROMOP_SKIP_DIAGS 0x0100 /* don't bother running diags */ 100*4882a593Smuzhiyun #define PROMOP_SKIP_MEMINIT 0x0200 /* don't bother initing memory */ 101*4882a593Smuzhiyun #define PROMOP_SKIP_DEVINIT 0x0400 /* don't bother initing devices */ 102*4882a593Smuzhiyun #define PROMOP_BIST1 0x0800 /* keep track of which BIST ran */ 103*4882a593Smuzhiyun #define PROMOP_BIST2 0x1000 /* keep track of which BIST ran */ 104*4882a593Smuzhiyun 105*4882a593Smuzhiyun #endif /* _ASM_SN_GDA_H */ 106