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#define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x))) 252#define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ 253 0x800000 + (_x))) 254#ifdef CONFIG_SGI_IP27 255#define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ 256 0x800000 + (_x))) 257#endif /* CONFIG_SGI_IP27 */ 258 259#ifndef __ASSEMBLY__ 260 261#define HUB_L(_a) *(_a) 262#define HUB_S(_a, _d) *(_a) = (_d) 263 264#define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r)) 265#define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d)) 266#define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r))) 267#define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d)) 268#define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r))) 269#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d)) 270 271#endif /* !__ASSEMBLY__ */ 272 273/* 274 * The following macros are used to get to a hub/bridge register, given 275 * the base of the register space. 276 */ 277#define HUB_REG_PTR(_base, _off) \ 278 (HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off))) 279 280#define HUB_REG_PTR_L(_base, _off) \ 281 HUB_L(HUB_REG_PTR((_base), (_off))) 282 283#define HUB_REG_PTR_S(_base, _off, _data) \ 284 HUB_S(HUB_REG_PTR((_base), (_off)), (_data)) 285 286/* 287 * Software structure locations -- permanently fixed 288 * See diagram in kldir.h 289 */ 290 291#define PHYS_RAMBASE 0x0 292#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE) 293 294#define EX_HANDLER_OFFSET(slice) ((slice) << 16) 295#define EX_HANDLER_ADDR(nasid, slice) \ 296 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice)) 297#define EX_HANDLER_SIZE 0x0400 298 299#define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400) 300#define EX_FRAME_ADDR(nasid, slice) \ 301 PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice)) 302#define EX_FRAME_SIZE 0x0c00 303 304#define ARCS_SPB_OFFSET 0x1000 305#define ARCS_SPB_ADDR(nasid) \ 306 PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET) 307#define ARCS_SPB_SIZE 0x0400 308 309#define KLDIR_OFFSET 0x2000 310#define KLDIR_ADDR(nasid) \ 311 TO_NODE_UNCAC((nasid), KLDIR_OFFSET) 312#define KLDIR_SIZE 0x0400 313 314 315/* 316 * Software structure locations -- indirected through KLDIR 317 * See diagram in kldir.h 318 * 319 * Important: All low memory structures must only be accessed 320 * uncached, except for the symmon stacks. 321 */ 322 323#define KLI_LAUNCH 0 /* Dir. entries */ 324#define KLI_KLCONFIG 1 325#define KLI_NMI 2 326#define KLI_GDA 3 327#define KLI_FREEMEM 4 328#define KLI_SYMMON_STK 5 329#define KLI_PI_ERROR 6 330#define KLI_KERN_VARS 7 331#define KLI_KERN_XP 8 332#define KLI_KERN_PARTID 9 333 334#ifndef __ASSEMBLY__ 335 336#define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid)) 337#define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH) 338#define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI) 339#define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG) 340#define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR) 341#define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA) 342#define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK) 343#define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM) 344#define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS) 345#define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP) 346#define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID) 347 348#define LAUNCH_OFFSET(nasid, slice) \ 349 (KLD_LAUNCH(nasid)->offset + \ 350 KLD_LAUNCH(nasid)->stride * (slice)) 351#define LAUNCH_ADDR(nasid, slice) \ 352 TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice)) 353#define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size 354 355#define SN_NMI_OFFSET(nasid, slice) \ 356 (KLD_NMI(nasid)->offset + \ 357 KLD_NMI(nasid)->stride * (slice)) 358#define NMI_ADDR(nasid, slice) \ 359 TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice)) 360#define NMI_SIZE(nasid) KLD_NMI(nasid)->size 361 362#define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset 363#define KLCONFIG_ADDR(nasid) \ 364 TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid)) 365#define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size 366 367#define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer 368#define GDA_SIZE(nasid) KLD_GDA(nasid)->size 369 370#define SYMMON_STK_OFFSET(nasid, slice) \ 371 (KLD_SYMMON_STK(nasid)->offset + \ 372 KLD_SYMMON_STK(nasid)->stride * (slice)) 373#define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride 374 375#define SYMMON_STK_ADDR(nasid, slice) \ 376 TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice)) 377 378#define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride 379 380#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size) 381 382/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a 383 * relocatable program 384 */ 385#define UNIX_DEBUG_LOADADDR 0x300000 386#define SYMMON_LOADADDR(nasid) \ 387 TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000)) 388 389#define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset 390#define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid) 391#define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size 392 393#define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset 394#define PI_ERROR_ADDR(nasid) \ 395 TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid)) 396#define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size 397 398#define NODE_OFFSET_TO_K0(_nasid, _off) \ 399 PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE) 400#define NODE_OFFSET_TO_K1(_nasid, _off) \ 401 TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE) 402#define K0_TO_NODE_OFFSET(_k0addr) \ 403 ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK) 404 405#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer 406#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size 407 408#define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer 409#define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size 410 411#define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET) 412 413#endif /* !__ASSEMBLY__ */ 414 415 416#endif /* _ASM_SN_ADDRS_H */ 417