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 #include <linux/config.h> 13 14 #ifndef __ASSEMBLY__ 15 #include <linux/types.h> 16 #endif /* !__ASSEMBLY__ */ 17 18 #include <asm/addrspace.h> 19 #include <asm/sn/kldir.h> 20 21 #if defined(CONFIG_SGI_IP27) 22 #include <asm/sn/sn0/addrs.h> 23 #elif defined(CONFIG_SGI_IP35) 24 #include <asm/sn/sn1/addrs.h> 25 #endif 26 27 28 #ifndef __ASSEMBLY__ 29 30 #if defined(CONFIG_SGI_IO) /* FIXME */ 31 #define PS_UINT_CAST (__psunsigned_t) 32 #define UINT64_CAST (__uint64_t) 33 #else /* CONFIG_SGI_IO */ 34 #define PS_UINT_CAST (unsigned long) 35 #define UINT64_CAST (unsigned long) 36 #endif /* CONFIG_SGI_IO */ 37 38 #define HUBREG_CAST (volatile hubreg_t *) 39 40 #else /* __ASSEMBLY__ */ 41 42 #define PS_UINT_CAST 43 #define UINT64_CAST 44 #define HUBREG_CAST 45 46 #endif /* __ASSEMBLY__ */ 47 48 49 #define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS) 50 #ifdef CONFIG_SGI_IP27 51 #define NASID_GET_LOCAL(_n) ((_n) & 0xf) 52 #endif 53 #define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l)) 54 55 #define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1) 56 #define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK) 57 58 #define CHANGE_ADDR_NASID(_pa, _nasid) \ 59 ((UINT64_CAST (_pa) & ~NASID_MASK) | \ 60 (UINT64_CAST(_nasid) << NASID_SHFT)) 61 62 63 /* 64 * The following macros are used to index to the beginning of a specific 65 * node's address space. 66 */ 67 68 #define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS) 69 70 #define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n)) 71 #define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n)) 72 #define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n)) 73 #define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n)) 74 #define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n)) 75 76 #define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) )) 77 #define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 78 #define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 79 #define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 80 #define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK)) 81 82 83 #define RAW_NODE_SWIN_BASE(nasid, widget) \ 84 (NODE_IO_BASE(nasid) + (UINT64_CAST (widget) << SWIN_SIZE_BITS)) 85 86 #define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff)) 87 88 /* 89 * The following definitions pertain to the IO special address 90 * space. They define the location of the big and little windows 91 * of any given node. 92 */ 93 94 #define SWIN_SIZE_BITS 24 95 #define SWIN_SIZE (UINT64_CAST 1 << 24) 96 #define SWIN_SIZEMASK (SWIN_SIZE - 1) 97 #define SWIN_WIDGET_MASK 0xF 98 99 /* 100 * Convert smallwindow address to xtalk address. 101 * 102 * 'addr' can be physical or virtual address, but will be converted 103 * to Xtalk address in the range 0 -> SWINZ_SIZEMASK 104 */ 105 #define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK) 106 #define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK) 107 /* 108 * Verify if addr belongs to small window address on node with "nasid" 109 * 110 * 111 * NOTE: "addr" is expected to be XKPHYS address, and NOT physical 112 * address 113 * 114 * 115 */ 116 #define NODE_SWIN_ADDR(nasid, addr) \ 117 (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \ 118 ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\ 119 )) 120 121 /* 122 * The following define the major position-independent aliases used 123 * in SN. 124 * UALIAS -- 256MB in size, reads in the UALIAS result in 125 * uncached references to the memory of the reader's node. 126 * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped 127 * depending on which CPU does the access to provide 128 * all CPUs with unique uncached memory at low addresses. 129 * LBOOT -- 256MB in size, reads in the LBOOT area result in 130 * uncached references to the local hub's boot prom and 131 * other directory-bus connected devices. 132 * IALIAS -- 8MB in size, reads in the IALIAS result in uncached 133 * references to the local hub's registers. 134 */ 135 136 #define UALIAS_BASE HSPEC_BASE 137 #define UALIAS_SIZE 0x10000000 /* 256 Megabytes */ 138 #define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE) 139 140 /* 141 * The bottom of ualias space is flipped depending on whether you're 142 * processor 0 or 1 within a node. 143 */ 144 #ifdef CONFIG_SGI_IP27 145 #define UALIAS_FLIP_BASE UALIAS_BASE 146 #define UALIAS_FLIP_SIZE 0x20000 147 #define UALIAS_FLIP_BIT 0x10000 148 #define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \ 149 (_x) ^ UALIAS_FLIP_BIT : (_x)) 150 151 #define LBOOT_BASE (HSPEC_BASE + 0x10000000) 152 #define LBOOT_SIZE 0x10000000 153 #define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE) 154 #define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */ 155 156 #endif 157 158 #define HUB_REGISTER_WIDGET 1 159 #define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET) 160 #define IALIAS_SIZE 0x800000 /* 8 Megabytes */ 161 #define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \ 162 ((_a) < (IALIAS_BASE + IALIAS_SIZE))) 163 164 /* 165 * Macro for referring to Hub's RBOOT space 166 */ 167 168 #ifdef CONFIG_SGI_IP27 169 #define RBOOT_SIZE 0x10000000 /* 256 Megabytes */ 170 #define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000) 171 #define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE) 172 173 #endif 174 175 /* 176 * Macros for referring the Hub's back door space 177 * 178 * These macros correctly process addresses in any node's space. 179 * WARNING: They won't work in assembler. 180 * 181 * BDDIR_ENTRY_LO returns the address of the low double-word of the dir 182 * entry corresponding to a physical (Cac or Uncac) address. 183 * BDDIR_ENTRY_HI returns the address of the high double-word of the entry. 184 * BDPRT_ENTRY returns the address of the double-word protection entry 185 * corresponding to the page containing the physical address. 186 * BDPRT_ENTRY_S Stores the value into the protection entry. 187 * BDPRT_ENTRY_L Load the value from the protection entry. 188 * BDECC_ENTRY returns the address of the ECC byte corresponding to a 189 * double-word at a specified physical address. 190 * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a 191 * quad-word at a specified physical address. 192 */ 193 #define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2)) 194 195 #define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n)) 196 #define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4)) 197 #ifdef CONFIG_SGI_IP27 198 #define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \ 199 NODE_ADDRSPACE_SIZE * 3 / 4 + \ 200 0x200) | \ 201 UINT64_CAST (_pa) & NASID_MASK | \ 202 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \ 203 UINT64_CAST (_pa) >> 3 & 0x1f << 4) 204 205 #define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \ 206 NODE_ADDRSPACE_SIZE * 3 / 4 + \ 207 0x208) | \ 208 UINT64_CAST (_pa) & NASID_MASK | \ 209 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \ 210 UINT64_CAST (_pa) >> 3 & 0x1f << 4) 211 212 #define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \ 213 NODE_ADDRSPACE_SIZE * 3 / 4) | \ 214 UINT64_CAST (_pa) & NASID_MASK | \ 215 UINT64_CAST (_pa) >> 2 & BDDIR_UPPER_MASK | \ 216 (_rgn) << 3) 217 #define BDPRT_ENTRY_ADDR(_pa,_rgn) (BDPRT_ENTRY((_pa),(_rgn))) 218 #define BDPRT_ENTRY_S(_pa,_rgn,_val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn))=(_val)) 219 #define BDPRT_ENTRY_L(_pa,_rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa),(_rgn))) 220 221 #define BDECC_ENTRY(_pa) ((HSPEC_BASE + \ 222 NODE_ADDRSPACE_SIZE / 2) | \ 223 UINT64_CAST (_pa) & NASID_MASK | \ 224 UINT64_CAST (_pa) >> 2 & BDECC_UPPER_MASK | \ 225 UINT64_CAST (_pa) >> 3 & 3) 226 227 /* 228 * Macro to convert a back door directory or protection address into the 229 * raw physical address of the associated cache line or protection page. 230 */ 231 #define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0) 232 #define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0) 233 234 #define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \ 235 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2 | \ 236 (UINT64_CAST (_ba) & 0x1f << 4) << 3) 237 238 #define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \ 239 (UINT64_CAST (_ba) & BDDIR_UPPER_MASK)<<2) 240 241 #define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \ 242 (UINT64_CAST (_ba) & BDECC_UPPER_MASK)<<2 | \ 243 (UINT64_CAST (_ba) & 3) << 3) 244 #endif /* CONFIG_SGI_IP27 */ 245 246 247 /* 248 * The following macros produce the correct base virtual address for 249 * the hub registers. The LOCAL_HUB_* macros produce the appropriate 250 * address for the local registers. The REMOTE_HUB_* macro produce 251 * the address for the specified hub's registers. The intent is 252 * that the appropriate PI, MD, NI, or II register would be substituted 253 * for _x. 254 */ 255 256 /* 257 * WARNING: 258 * When certain Hub chip workaround are defined, it's not sufficient 259 * to dereference the *_HUB_ADDR() macros. You should instead use 260 * HUB_L() and HUB_S() if you must deal with pointers to hub registers. 261 * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S(). 262 * They're always safe. 263 */ 264 #define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x))) 265 #define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ 266 0x800000 + (_x))) 267 #ifdef CONFIG_SGI_IP27 268 #define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ 269 0x800000 + (_x))) 270 #endif /* CONFIG_SGI_IP27 */ 271 272 #ifndef __ASSEMBLY__ 273 274 #define HUB_L(_a) *(_a) 275 #define HUB_S(_a, _d) *(_a) = (_d) 276 277 #define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r)) 278 #define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d)) 279 #define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r))) 280 #define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d)) 281 #define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r))) 282 #define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d)) 283 284 #endif /* !__ASSEMBLY__ */ 285 286 /* 287 * The following macros are used to get to a hub/bridge register, given 288 * the base of the register space. 289 */ 290 #define HUB_REG_PTR(_base, _off) \ 291 (HUBREG_CAST ((__psunsigned_t)(_base) + (__psunsigned_t)(_off))) 292 293 #define HUB_REG_PTR_L(_base, _off) \ 294 HUB_L(HUB_REG_PTR((_base), (_off))) 295 296 #define HUB_REG_PTR_S(_base, _off, _data) \ 297 HUB_S(HUB_REG_PTR((_base), (_off)), (_data)) 298 299 /* 300 * Software structure locations -- permanently fixed 301 * See diagram in kldir.h 302 */ 303 304 #define PHYS_RAMBASE 0x0 305 #define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE) 306 307 #define EX_HANDLER_OFFSET(slice) ((slice) << 16) 308 #define EX_HANDLER_ADDR(nasid, slice) \ 309 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice)) 310 #define EX_HANDLER_SIZE 0x0400 311 312 #define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400) 313 #define EX_FRAME_ADDR(nasid, slice) \ 314 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice)) 315 #define EX_FRAME_SIZE 0x0c00 316 317 #define ARCS_SPB_OFFSET 0x1000 318 #define ARCS_SPB_ADDR(nasid) \ 319 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET) 320 #define ARCS_SPB_SIZE 0x0400 321 322 #define KLDIR_OFFSET 0x2000 323 #define KLDIR_ADDR(nasid) \ 324 TO_NODE_UNCAC((nasid), KLDIR_OFFSET) 325 #define KLDIR_SIZE 0x0400 326 327 328 /* 329 * Software structure locations -- indirected through KLDIR 330 * See diagram in kldir.h 331 * 332 * Important: All low memory structures must only be accessed 333 * uncached, except for the symmon stacks. 334 */ 335 336 #define KLI_LAUNCH 0 /* Dir. entries */ 337 #define KLI_KLCONFIG 1 338 #define KLI_NMI 2 339 #define KLI_GDA 3 340 #define KLI_FREEMEM 4 341 #define KLI_SYMMON_STK 5 342 #define KLI_PI_ERROR 6 343 #define KLI_KERN_VARS 7 344 #define KLI_KERN_XP 8 345 #define KLI_KERN_PARTID 9 346 347 #ifndef __ASSEMBLY__ 348 349 #define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid)) 350 #define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH) 351 #define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI) 352 #define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG) 353 #define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR) 354 #define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA) 355 #define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK) 356 #define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM) 357 #define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS) 358 #define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP) 359 #define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID) 360 361 #define LAUNCH_OFFSET(nasid, slice) \ 362 (KLD_LAUNCH(nasid)->offset + \ 363 KLD_LAUNCH(nasid)->stride * (slice)) 364 #define LAUNCH_ADDR(nasid, slice) \ 365 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice)) 366 #define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size 367 368 #define NMI_OFFSET(nasid, slice) \ 369 (KLD_NMI(nasid)->offset + \ 370 KLD_NMI(nasid)->stride * (slice)) 371 #define NMI_ADDR(nasid, slice) \ 372 TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice)) 373 #define NMI_SIZE(nasid) KLD_NMI(nasid)->size 374 375 #define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset 376 #define KLCONFIG_ADDR(nasid) \ 377 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid)) 378 #define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size 379 380 #define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer 381 #define GDA_SIZE(nasid) KLD_GDA(nasid)->size 382 383 #define SYMMON_STK_OFFSET(nasid, slice) \ 384 (KLD_SYMMON_STK(nasid)->offset + \ 385 KLD_SYMMON_STK(nasid)->stride * (slice)) 386 #define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride 387 388 #define SYMMON_STK_ADDR(nasid, slice) \ 389 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice)) 390 391 #define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride 392 393 #define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size) 394 395 /* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a 396 * relocatable program 397 */ 398 #define UNIX_DEBUG_LOADADDR 0x300000 399 #define SYMMON_LOADADDR(nasid) \ 400 TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000)) 401 402 #define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset 403 #define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid) 404 /* 405 * XXX 406 * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded. 407 * Also, it should take into account what prom thinks to be a safe 408 * address 409 PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid)) 410 */ 411 #define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size 412 413 #define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset 414 #define PI_ERROR_ADDR(nasid) \ 415 TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid)) 416 #define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size 417 418 #define NODE_OFFSET_TO_K0(_nasid, _off) \ 419 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | K0BASE) 420 #define NODE_OFFSET_TO_K1(_nasid, _off) \ 421 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | K1BASE) 422 #define K0_TO_NODE_OFFSET(_k0addr) \ 423 ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK) 424 425 #define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer 426 #define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size 427 428 #define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer 429 #define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size 430 431 #define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET) 432 433 #endif /* !__ASSEMBLY__ */ 434 435 436 #endif /* _ASM_SN_ADDRS_H */ 437