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 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc. 7 * Copyright (C) 1999, 2000 by Ralf Baechle 8 */ 9 #ifndef _ASM_SN_ADDRS_H 10 #define _ASM_SN_ADDRS_H 11 12 13 #ifndef __ASSEMBLY__ 14 #include <linux/types.h> 15 #endif /* !__ASSEMBLY__ */ 16 17 #include <asm/addrspace.h> 18 #include <asm/sn/kldir.h> 19 20 #if defined(CONFIG_SGI_IP27) 21 #include <asm/sn/sn0/addrs.h> 22 #elif defined(CONFIG_SGI_IP35) 23 #include <asm/sn/sn1/addrs.h> 24 #endif 25 26 27 #ifndef __ASSEMBLY__ 28 29 #define PS_UINT_CAST (unsigned long) 30 #define UINT64_CAST (unsigned long) 31 32 #define HUBREG_CAST (volatile hubreg_t *) 33 34 #else /* __ASSEMBLY__ */ 35 36 #define PS_UINT_CAST 37 #define UINT64_CAST 38 #define HUBREG_CAST 39 40 #endif /* __ASSEMBLY__ */ 41 42 43 #define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS) 44 #ifdef CONFIG_SGI_IP27 45 #define NASID_GET_LOCAL(_n) ((_n) & 0xf) 46 #endif 47 #define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l)) 48 49 #define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1) 50 #define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK) 51 52 #define CHANGE_ADDR_NASID(_pa, _nasid) \ 53 ((UINT64_CAST(_pa) & ~NASID_MASK) | \ 54 (UINT64_CAST(_nasid) << NASID_SHFT)) 55 56 57 /* 58 * The following macros are used to index to the beginning of a specific 59 * node's address space. 60 */ 61 62 #define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS) 63 64 #define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n)) 65 #define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n)) 66 #define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n)) 67 #define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n)) 68 #define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n)) 69 70 #define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) )) 71 #define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 72 #define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 73 #define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 74 #define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 75 76 77 #define RAW_NODE_SWIN_BASE(nasid, widget) \ 78 (NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS)) 79 80 #define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff)) 81 82 /* 83 * The following definitions pertain to the IO special address 84 * space. They define the location of the big and little windows 85 * of any given node. 86 */ 87 88 #define SWIN_SIZE_BITS 24 89 #define SWIN_SIZE (UINT64_CAST 1 << 24) 90 #define SWIN_SIZEMASK (SWIN_SIZE - 1) 91 #define SWIN_WIDGET_MASK 0xF 92 93 /* 94 * Convert smallwindow address to xtalk address. 95 * 96 * 'addr' can be physical or virtual address, but will be converted 97 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK 98 */ 99 #define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK) 100 #define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK) 101 /* 102 * Verify if addr belongs to small window address on node with "nasid" 103 * 104 * 105 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical 106 * address 107 * 108 * 109 */ 110 #define NODE_SWIN_ADDR(nasid, addr) \ 111 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \ 112 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\ 113 )) 114 115 /* 116 * The following define the major position-independent aliases used 117 * in SN. 118 * UALIAS -- 256MB in size, reads in the UALIAS result in 119 * uncached references to the memory of the reader's node. 120 * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped 121 * depending on which CPU does the access to provide 122 * all CPUs with unique uncached memory at low addresses. 123 * LBOOT -- 256MB in size, reads in the LBOOT area result in 124 * uncached references to the local hub's boot prom and 125 * other directory-bus connected devices. 126 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached 127 * references to the local hub's registers. 128 */ 129 130 #define UALIAS_BASE HSPEC_BASE 131 #define UALIAS_SIZE 0x10000000 /* 256 Megabytes */ 132 #define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE) 133 134 /* 135 * The bottom of ualias space is flipped depending on whether you're 136 * processor 0 or 1 within a node. 137 */ 138 #ifdef CONFIG_SGI_IP27 139 #define UALIAS_FLIP_BASE UALIAS_BASE 140 #define UALIAS_FLIP_SIZE 0x20000 141 #define UALIAS_FLIP_BIT 0x10000 142 #define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \ 143 (_x) ^ UALIAS_FLIP_BIT : (_x)) 144 145 #define LBOOT_BASE (HSPEC_BASE + 0x10000000) 146 #define LBOOT_SIZE 0x10000000 147 #define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE) 148 #define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */ 149 150 #endif 151 152 #define HUB_REGISTER_WIDGET 1 153 #define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET) 154 #define IALIAS_SIZE 0x800000 /* 8 Megabytes */ 155 #define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \ 156 ((_a) < (IALIAS_BASE + IALIAS_SIZE))) 157 158 /* 159 * Macro for referring to Hub's RBOOT space 160 */ 161 162 #ifdef CONFIG_SGI_IP27 163 #define RBOOT_SIZE 0x10000000 /* 256 Megabytes */ 164 #define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000) 165 #define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE) 166 167 #endif 168 169 /* 170 * Macros for referring the Hub's back door space 171 * 172 * These macros correctly process addresses in any node's space. 173 * WARNING: They won't work in assembler. 174 * 175 * BDDIR_ENTRY_LO returns the address of the low double-word of the dir 176 * entry corresponding to a physical (Cac or Uncac) address. 177 * BDDIR_ENTRY_HI returns the address of the high double-word of the entry. 178 * BDPRT_ENTRY returns the address of the double-word protection entry 179 * corresponding to the page containing the physical address. 180 * BDPRT_ENTRY_S Stores the value into the protection entry. 181 * BDPRT_ENTRY_L Load the value from the protection entry. 182 * BDECC_ENTRY returns the address of the ECC byte corresponding to a 183 * double-word at a specified physical address. 184 * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a 185 * quad-word at a specified physical address. 186 */ 187 #define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2)) 188 189 #define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n)) 190 #define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4)) 191 #ifdef CONFIG_SGI_IP27 192 #define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \ 193 NODE_ADDRSPACE_SIZE * 3 / 4 + \ 194 0x200) | \ 195 UINT64_CAST(_pa) & NASID_MASK | \ 196 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \ 197 UINT64_CAST(_pa) >> 3 & 0x1f << 4) 198 199 #define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \ 200 NODE_ADDRSPACE_SIZE * 3 / 4 + \ 201 0x208) | \ 202 UINT64_CAST(_pa) & NASID_MASK | \ 203 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \ 204 UINT64_CAST(_pa) >> 3 & 0x1f << 4) 205 206 #define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \ 207 NODE_ADDRSPACE_SIZE * 3 / 4) | \ 208 UINT64_CAST(_pa) & NASID_MASK | \ 209 UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \ 210 (_rgn) << 3) 211 #define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn))) 212 #define BDPRT_ENTRY_S(_pa, _rgn, _val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))=(_val)) 213 #define BDPRT_ENTRY_L(_pa, _rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))) 214 215 #define BDECC_ENTRY(_pa) ((HSPEC_BASE + \ 216 NODE_ADDRSPACE_SIZE / 2) | \ 217 UINT64_CAST(_pa) & NASID_MASK | \ 218 UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK | \ 219 UINT64_CAST(_pa) >> 3 & 3) 220 221 /* 222 * Macro to convert a back door directory or protection address into the 223 * raw physical address of the associated cache line or protection page. 224 */ 225 #define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0) 226 #define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0) 227 228 #define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \ 229 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2 | \ 230 (UINT64_CAST(_ba) & 0x1f << 4) << 3) 231 232 #define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \ 233 (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2) 234 235 #define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \ 236 (UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2 | \ 237 (UINT64_CAST(_ba) & 3) << 3) 238 #endif /* CONFIG_SGI_IP27 */ 239 240 241 /* 242 * The following macros produce the correct base virtual address for 243 * the hub registers. The LOCAL_HUB_* macros produce the appropriate 244 * address for the local registers. The REMOTE_HUB_* macro produce 245 * the address for the specified hub's registers. The intent is 246 * that the appropriate PI, MD, NI, or II register would be substituted 247 * for _x. 248 */ 249 250 /* 251 * WARNING: 252 * When certain Hub chip workaround are defined, it's not sufficient 253 * to dereference the *_HUB_ADDR() macros. You should instead use 254 * HUB_L() and HUB_S() if you must deal with pointers to hub registers. 255 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S(). 256 * They're always safe. 257 */ 258 #define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x))) 259 #define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ 260 0x800000 + (_x))) 261 #ifdef CONFIG_SGI_IP27 262 #define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ 263 0x800000 + (_x))) 264 #endif /* CONFIG_SGI_IP27 */ 265 266 #ifndef __ASSEMBLY__ 267 268 #define HUB_L(_a) *(_a) 269 #define HUB_S(_a, _d) *(_a) = (_d) 270 271 #define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r)) 272 #define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d)) 273 #define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r))) 274 #define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d)) 275 #define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r))) 276 #define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d)) 277 278 #endif /* !__ASSEMBLY__ */ 279 280 /* 281 * The following macros are used to get to a hub/bridge register, given 282 * the base of the register space. 283 */ 284 #define HUB_REG_PTR(_base, _off) \ 285 (HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off))) 286 287 #define HUB_REG_PTR_L(_base, _off) \ 288 HUB_L(HUB_REG_PTR((_base), (_off))) 289 290 #define HUB_REG_PTR_S(_base, _off, _data) \ 291 HUB_S(HUB_REG_PTR((_base), (_off)), (_data)) 292 293 /* 294 * Software structure locations -- permanently fixed 295 * See diagram in kldir.h 296 */ 297 298 #define PHYS_RAMBASE 0x0 299 #define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE) 300 301 #define EX_HANDLER_OFFSET(slice) ((slice) << 16) 302 #define EX_HANDLER_ADDR(nasid, slice) \ 303 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice)) 304 #define EX_HANDLER_SIZE 0x0400 305 306 #define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400) 307 #define EX_FRAME_ADDR(nasid, slice) \ 308 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice)) 309 #define EX_FRAME_SIZE 0x0c00 310 311 #define ARCS_SPB_OFFSET 0x1000 312 #define ARCS_SPB_ADDR(nasid) \ 313 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET) 314 #define ARCS_SPB_SIZE 0x0400 315 316 #define KLDIR_OFFSET 0x2000 317 #define KLDIR_ADDR(nasid) \ 318 TO_NODE_UNCAC((nasid), KLDIR_OFFSET) 319 #define KLDIR_SIZE 0x0400 320 321 322 /* 323 * Software structure locations -- indirected through KLDIR 324 * See diagram in kldir.h 325 * 326 * Important: All low memory structures must only be accessed 327 * uncached, except for the symmon stacks. 328 */ 329 330 #define KLI_LAUNCH 0 /* Dir. entries */ 331 #define KLI_KLCONFIG 1 332 #define KLI_NMI 2 333 #define KLI_GDA 3 334 #define KLI_FREEMEM 4 335 #define KLI_SYMMON_STK 5 336 #define KLI_PI_ERROR 6 337 #define KLI_KERN_VARS 7 338 #define KLI_KERN_XP 8 339 #define KLI_KERN_PARTID 9 340 341 #ifndef __ASSEMBLY__ 342 343 #define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid)) 344 #define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH) 345 #define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI) 346 #define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG) 347 #define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR) 348 #define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA) 349 #define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK) 350 #define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM) 351 #define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS) 352 #define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP) 353 #define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID) 354 355 #define LAUNCH_OFFSET(nasid, slice) \ 356 (KLD_LAUNCH(nasid)->offset + \ 357 KLD_LAUNCH(nasid)->stride * (slice)) 358 #define LAUNCH_ADDR(nasid, slice) \ 359 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice)) 360 #define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size 361 362 #define NMI_OFFSET(nasid, slice) \ 363 (KLD_NMI(nasid)->offset + \ 364 KLD_NMI(nasid)->stride * (slice)) 365 #define NMI_ADDR(nasid, slice) \ 366 TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice)) 367 #define NMI_SIZE(nasid) KLD_NMI(nasid)->size 368 369 #define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset 370 #define KLCONFIG_ADDR(nasid) \ 371 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid)) 372 #define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size 373 374 #define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer 375 #define GDA_SIZE(nasid) KLD_GDA(nasid)->size 376 377 #define SYMMON_STK_OFFSET(nasid, slice) \ 378 (KLD_SYMMON_STK(nasid)->offset + \ 379 KLD_SYMMON_STK(nasid)->stride * (slice)) 380 #define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride 381 382 #define SYMMON_STK_ADDR(nasid, slice) \ 383 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice)) 384 385 #define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride 386 387 #define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size) 388 389 /* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a 390 * relocatable program 391 */ 392 #define UNIX_DEBUG_LOADADDR 0x300000 393 #define SYMMON_LOADADDR(nasid) \ 394 TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000)) 395 396 #define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset 397 #define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid) 398 /* 399 * XXX 400 * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded. 401 * Also, it should take into account what prom thinks to be a safe 402 * address 403 PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid)) 404 */ 405 #define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size 406 407 #define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset 408 #define PI_ERROR_ADDR(nasid) \ 409 TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid)) 410 #define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size 411 412 #define NODE_OFFSET_TO_K0(_nasid, _off) \ 413 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE) 414 #define NODE_OFFSET_TO_K1(_nasid, _off) \ 415 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE) 416 #define K0_TO_NODE_OFFSET(_k0addr) \ 417 ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK) 418 419 #define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer 420 #define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size 421 422 #define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer 423 #define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size 424 425 #define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET) 426 427 #endif /* !__ASSEMBLY__ */ 428 429 430 #endif /* _ASM_SN_ADDRS_H */ 431
