1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Derived from IRIX <sys/SN/SN0/hubni.h>, Revision 1.27. 7 * 8 * Copyright (C) 1992-1997, 1999 Silicon Graphics, Inc. 9 * Copyright (C) 1999 by Ralf Baechle 10 */ 11 #ifndef _ASM_SGI_SN0_HUBNI_H 12 #define _ASM_SGI_SN0_HUBNI_H 13 14 #ifndef __ASSEMBLY__ 15 #include <linux/types.h> 16 #endif 17 18 /* 19 * Hub Network Interface registers 20 * 21 * All registers in this file are subject to change until Hub chip tapeout. 22 */ 23 24 #define NI_BASE 0x600000 25 #define NI_BASE_TABLES 0x630000 26 27 #define NI_STATUS_REV_ID 0x600000 /* Hub network status, rev, and ID */ 28 #define NI_PORT_RESET 0x600008 /* Reset the network interface */ 29 #define NI_PROTECTION 0x600010 /* NI register access permissions */ 30 #define NI_GLOBAL_PARMS 0x600018 /* LLP parameters */ 31 #define NI_SCRATCH_REG0 0x600100 /* Scratch register 0 (64 bits) */ 32 #define NI_SCRATCH_REG1 0x600108 /* Scratch register 1 (64 bits) */ 33 #define NI_DIAG_PARMS 0x600110 /* Parameters for diags */ 34 35 #define NI_VECTOR_PARMS 0x600200 /* Vector PIO routing parameters */ 36 #define NI_VECTOR 0x600208 /* Vector PIO route */ 37 #define NI_VECTOR_DATA 0x600210 /* Vector PIO data */ 38 #define NI_VECTOR_STATUS 0x600300 /* Vector PIO return status */ 39 #define NI_RETURN_VECTOR 0x600308 /* Vector PIO return vector */ 40 #define NI_VECTOR_READ_DATA 0x600310 /* Vector PIO read data */ 41 #define NI_VECTOR_CLEAR 0x600380 /* Vector PIO read & clear status */ 42 43 #define NI_IO_PROTECT 0x600400 /* PIO protection bits */ 44 #define NI_IO_PROT_OVRRD 0x600408 /* PIO protection bit override */ 45 46 #define NI_AGE_CPU0_MEMORY 0x600500 /* CPU 0 memory age control */ 47 #define NI_AGE_CPU0_PIO 0x600508 /* CPU 0 PIO age control */ 48 #define NI_AGE_CPU1_MEMORY 0x600510 /* CPU 1 memory age control */ 49 #define NI_AGE_CPU1_PIO 0x600518 /* CPU 1 PIO age control */ 50 #define NI_AGE_GBR_MEMORY 0x600520 /* GBR memory age control */ 51 #define NI_AGE_GBR_PIO 0x600528 /* GBR PIO age control */ 52 #define NI_AGE_IO_MEMORY 0x600530 /* IO memory age control */ 53 #define NI_AGE_IO_PIO 0x600538 /* IO PIO age control */ 54 #define NI_AGE_REG_MIN NI_AGE_CPU0_MEMORY 55 #define NI_AGE_REG_MAX NI_AGE_IO_PIO 56 57 #define NI_PORT_PARMS 0x608000 /* LLP Parameters */ 58 #define NI_PORT_ERROR 0x608008 /* LLP Errors */ 59 #define NI_PORT_ERROR_CLEAR 0x608088 /* Clear the error bits */ 60 61 #define NI_META_TABLE0 0x638000 /* First meta routing table entry */ 62 #define NI_META_TABLE(_x) (NI_META_TABLE0 + (8 * (_x))) 63 #define NI_META_ENTRIES 32 64 65 #define NI_LOCAL_TABLE0 0x638100 /* First local routing table entry */ 66 #define NI_LOCAL_TABLE(_x) (NI_LOCAL_TABLE0 + (8 * (_x))) 67 #define NI_LOCAL_ENTRIES 16 68 69 /* 70 * NI_STATUS_REV_ID mask and shift definitions 71 * Have to use UINT64_CAST instead of 'L' suffix, for assembler. 72 */ 73 74 #define NSRI_8BITMODE_SHFT 30 75 #define NSRI_8BITMODE_MASK (UINT64_CAST 0x1 << 30) 76 #define NSRI_LINKUP_SHFT 29 77 #define NSRI_LINKUP_MASK (UINT64_CAST 0x1 << 29) 78 #define NSRI_DOWNREASON_SHFT 28 /* 0=failed, 1=never came */ 79 #define NSRI_DOWNREASON_MASK (UINT64_CAST 0x1 << 28) /* out of reset. */ 80 #define NSRI_MORENODES_SHFT 18 81 #define NSRI_MORENODES_MASK (UINT64_CAST 1 << 18) /* Max. # of nodes */ 82 #define MORE_MEMORY 0 83 #define MORE_NODES 1 84 #define NSRI_REGIONSIZE_SHFT 17 85 #define NSRI_REGIONSIZE_MASK (UINT64_CAST 1 << 17) /* Granularity */ 86 #define REGIONSIZE_FINE 1 87 #define REGIONSIZE_COARSE 0 88 #define NSRI_NODEID_SHFT 8 89 #define NSRI_NODEID_MASK (UINT64_CAST 0x1ff << 8)/* Node (Hub) ID */ 90 #define NSRI_REV_SHFT 4 91 #define NSRI_REV_MASK (UINT64_CAST 0xf << 4) /* Chip Revision */ 92 #define NSRI_CHIPID_SHFT 0 93 #define NSRI_CHIPID_MASK (UINT64_CAST 0xf) /* Chip type ID */ 94 95 /* 96 * In fine mode, each node is a region. In coarse mode, there are 97 * eight nodes per region. 98 */ 99 #define NASID_TO_FINEREG_SHFT 0 100 #define NASID_TO_COARSEREG_SHFT 3 101 102 /* NI_PORT_RESET mask definitions */ 103 104 #define NPR_PORTRESET (UINT64_CAST 1 << 7) /* Send warm reset */ 105 #define NPR_LINKRESET (UINT64_CAST 1 << 1) /* Send link reset */ 106 #define NPR_LOCALRESET (UINT64_CAST 1) /* Reset entire hub */ 107 108 /* NI_PROTECTION mask and shift definitions */ 109 110 #define NPROT_RESETOK (UINT64_CAST 1) 111 112 /* NI_GLOBAL_PARMS mask and shift definitions */ 113 114 #define NGP_MAXRETRY_SHFT 48 /* Maximum retries */ 115 #define NGP_MAXRETRY_MASK (UINT64_CAST 0x3ff << 48) 116 #define NGP_TAILTOWRAP_SHFT 32 /* Tail timeout wrap */ 117 #define NGP_TAILTOWRAP_MASK (UINT64_CAST 0xffff << 32) 118 119 #define NGP_CREDITTOVAL_SHFT 16 /* Tail timeout wrap */ 120 #define NGP_CREDITTOVAL_MASK (UINT64_CAST 0xf << 16) 121 #define NGP_TAILTOVAL_SHFT 4 /* Tail timeout value */ 122 #define NGP_TAILTOVAL_MASK (UINT64_CAST 0xf << 4) 123 124 /* NI_DIAG_PARMS mask and shift definitions */ 125 126 #define NDP_PORTTORESET (UINT64_CAST 1 << 18) /* Port tmout reset */ 127 #define NDP_LLP8BITMODE (UINT64_CAST 1 << 12) /* LLP 8-bit mode */ 128 #define NDP_PORTDISABLE (UINT64_CAST 1 << 6) /* Port disable */ 129 #define NDP_SENDERROR (UINT64_CAST 1) /* Send data error */ 130 131 /* 132 * NI_VECTOR_PARMS mask and shift definitions. 133 * TYPE may be any of the first four PIOTYPEs defined under NI_VECTOR_STATUS. 134 */ 135 136 #define NVP_PIOID_SHFT 40 137 #define NVP_PIOID_MASK (UINT64_CAST 0x3ff << 40) 138 #define NVP_WRITEID_SHFT 32 139 #define NVP_WRITEID_MASK (UINT64_CAST 0xff << 32) 140 #define NVP_ADDRESS_MASK (UINT64_CAST 0xffff8) /* Bits 19:3 */ 141 #define NVP_TYPE_SHFT 0 142 #define NVP_TYPE_MASK (UINT64_CAST 0x3) 143 144 /* NI_VECTOR_STATUS mask and shift definitions */ 145 146 #define NVS_VALID (UINT64_CAST 1 << 63) 147 #define NVS_OVERRUN (UINT64_CAST 1 << 62) 148 #define NVS_TARGET_SHFT 51 149 #define NVS_TARGET_MASK (UINT64_CAST 0x3ff << 51) 150 #define NVS_PIOID_SHFT 40 151 #define NVS_PIOID_MASK (UINT64_CAST 0x3ff << 40) 152 #define NVS_WRITEID_SHFT 32 153 #define NVS_WRITEID_MASK (UINT64_CAST 0xff << 32) 154 #define NVS_ADDRESS_MASK (UINT64_CAST 0xfffffff8) /* Bits 31:3 */ 155 #define NVS_TYPE_SHFT 0 156 #define NVS_TYPE_MASK (UINT64_CAST 0x7) 157 #define NVS_ERROR_MASK (UINT64_CAST 0x4) /* bit set means error */ 158 159 160 #define PIOTYPE_READ 0 /* VECTOR_PARMS and VECTOR_STATUS */ 161 #define PIOTYPE_WRITE 1 /* VECTOR_PARMS and VECTOR_STATUS */ 162 #define PIOTYPE_UNDEFINED 2 /* VECTOR_PARMS and VECTOR_STATUS */ 163 #define PIOTYPE_EXCHANGE 3 /* VECTOR_PARMS and VECTOR_STATUS */ 164 #define PIOTYPE_ADDR_ERR 4 /* VECTOR_STATUS only */ 165 #define PIOTYPE_CMD_ERR 5 /* VECTOR_STATUS only */ 166 #define PIOTYPE_PROT_ERR 6 /* VECTOR_STATUS only */ 167 #define PIOTYPE_UNKNOWN 7 /* VECTOR_STATUS only */ 168 169 /* NI_AGE_XXX mask and shift definitions */ 170 171 #define NAGE_VCH_SHFT 10 172 #define NAGE_VCH_MASK (UINT64_CAST 3 << 10) 173 #define NAGE_CC_SHFT 8 174 #define NAGE_CC_MASK (UINT64_CAST 3 << 8) 175 #define NAGE_AGE_SHFT 0 176 #define NAGE_AGE_MASK (UINT64_CAST 0xff) 177 #define NAGE_MASK (NAGE_VCH_MASK | NAGE_CC_MASK | NAGE_AGE_MASK) 178 179 #define VCHANNEL_A 0 180 #define VCHANNEL_B 1 181 #define VCHANNEL_ANY 2 182 183 /* NI_PORT_PARMS mask and shift definitions */ 184 185 #define NPP_NULLTO_SHFT 10 186 #define NPP_NULLTO_MASK (UINT64_CAST 0x3f << 16) 187 #define NPP_MAXBURST_SHFT 0 188 #define NPP_MAXBURST_MASK (UINT64_CAST 0x3ff) 189 #define NPP_RESET_DFLT_HUB20 ((UINT64_CAST 1 << NPP_NULLTO_SHFT) | \ 190 (UINT64_CAST 0x3f0 << NPP_MAXBURST_SHFT)) 191 #define NPP_RESET_DEFAULTS ((UINT64_CAST 6 << NPP_NULLTO_SHFT) | \ 192 (UINT64_CAST 0x3f0 << NPP_MAXBURST_SHFT)) 193 194 195 /* NI_PORT_ERROR mask and shift definitions */ 196 197 #define NPE_LINKRESET (UINT64_CAST 1 << 37) 198 #define NPE_INTERNALERROR (UINT64_CAST 1 << 36) 199 #define NPE_BADMESSAGE (UINT64_CAST 1 << 35) 200 #define NPE_BADDEST (UINT64_CAST 1 << 34) 201 #define NPE_FIFOOVERFLOW (UINT64_CAST 1 << 33) 202 #define NPE_CREDITTO_SHFT 28 203 #define NPE_CREDITTO_MASK (UINT64_CAST 0xf << 28) 204 #define NPE_TAILTO_SHFT 24 205 #define NPE_TAILTO_MASK (UINT64_CAST 0xf << 24) 206 #define NPE_RETRYCOUNT_SHFT 16 207 #define NPE_RETRYCOUNT_MASK (UINT64_CAST 0xff << 16) 208 #define NPE_CBERRCOUNT_SHFT 8 209 #define NPE_CBERRCOUNT_MASK (UINT64_CAST 0xff << 8) 210 #define NPE_SNERRCOUNT_SHFT 0 211 #define NPE_SNERRCOUNT_MASK (UINT64_CAST 0xff << 0) 212 #define NPE_MASK 0x3effffffff 213 214 #define NPE_COUNT_MAX 0xff 215 216 #define NPE_FATAL_ERRORS (NPE_LINKRESET | NPE_INTERNALERROR | \ 217 NPE_BADMESSAGE | NPE_BADDEST | \ 218 NPE_FIFOOVERFLOW | NPE_CREDITTO_MASK | \ 219 NPE_TAILTO_MASK) 220 221 /* NI_META_TABLE mask and shift definitions */ 222 223 #define NMT_EXIT_PORT_MASK (UINT64_CAST 0xf) 224 225 /* NI_LOCAL_TABLE mask and shift definitions */ 226 227 #define NLT_EXIT_PORT_MASK (UINT64_CAST 0xf) 228 229 #ifndef __ASSEMBLY__ 230 231 typedef union hubni_port_error_u { 232 u64 nipe_reg_value; 233 struct { 234 u64 nipe_rsvd: 26, /* unused */ 235 nipe_lnk_reset: 1, /* link reset */ 236 nipe_intl_err: 1, /* internal error */ 237 nipe_bad_msg: 1, /* bad message */ 238 nipe_bad_dest: 1, /* bad dest */ 239 nipe_fifo_ovfl: 1, /* fifo overflow */ 240 nipe_rsvd1: 1, /* unused */ 241 nipe_credit_to: 4, /* credit timeout */ 242 nipe_tail_to: 4, /* tail timeout */ 243 nipe_retry_cnt: 8, /* retry error count */ 244 nipe_cb_cnt: 8, /* checkbit error count */ 245 nipe_sn_cnt: 8; /* sequence number count */ 246 } nipe_fields_s; 247 } hubni_port_error_t; 248 249 #define NI_LLP_RETRY_MAX 0xff 250 #define NI_LLP_CB_MAX 0xff 251 #define NI_LLP_SN_MAX 0xff 252 253 static inline int get_region_shift(void) 254 { 255 if (LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_REGIONSIZE_MASK) 256 return NASID_TO_FINEREG_SHFT; 257 258 return NASID_TO_COARSEREG_SHFT; 259 } 260 261 #endif /* !__ASSEMBLY__ */ 262 263 #endif /* _ASM_SGI_SN0_HUBNI_H */ 264