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