Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASM_IA64_IA32_PRIV_H |
| 2 | #define _ASM_IA64_IA32_PRIV_H |
| 3 | |
| 4 | #include <linux/config.h> |
| 5 | |
| 6 | #include <asm/ia32.h> |
| 7 | |
| 8 | #ifdef CONFIG_IA32_SUPPORT |
| 9 | |
| 10 | #include <linux/binfmts.h> |
| 11 | #include <linux/compat.h> |
| 12 | #include <linux/rbtree.h> |
| 13 | |
| 14 | #include <asm/processor.h> |
| 15 | |
| 16 | /* |
| 17 | * 32 bit structures for IA32 support. |
| 18 | */ |
| 19 | |
| 20 | #define IA32_PAGE_SIZE (1UL << IA32_PAGE_SHIFT) |
| 21 | #define IA32_PAGE_MASK (~(IA32_PAGE_SIZE - 1)) |
| 22 | #define IA32_PAGE_ALIGN(addr) (((addr) + IA32_PAGE_SIZE - 1) & IA32_PAGE_MASK) |
| 23 | #define IA32_CLOCKS_PER_SEC 100 /* Cast in stone for IA32 Linux */ |
| 24 | |
| 25 | /* |
| 26 | * partially mapped pages provide precise accounting of which 4k sub pages |
| 27 | * are mapped and which ones are not, thereby improving IA-32 compatibility. |
| 28 | */ |
| 29 | struct partial_page { |
| 30 | struct partial_page *next; /* linked list, sorted by address */ |
| 31 | struct rb_node pp_rb; |
| 32 | /* 64K is the largest "normal" page supported by ia64 ABI. So 4K*32 |
| 33 | * should suffice.*/ |
| 34 | unsigned int bitmap; |
| 35 | unsigned int base; |
| 36 | }; |
| 37 | |
| 38 | struct partial_page_list { |
| 39 | struct partial_page *pp_head; /* list head, points to the lowest |
| 40 | * addressed partial page */ |
| 41 | struct rb_root ppl_rb; |
| 42 | struct partial_page *pp_hint; /* pp_hint->next is the last |
| 43 | * accessed partial page */ |
| 44 | atomic_t pp_count; /* reference count */ |
| 45 | }; |
| 46 | |
| 47 | #if PAGE_SHIFT > IA32_PAGE_SHIFT |
| 48 | struct partial_page_list* ia32_init_pp_list (void); |
| 49 | #else |
| 50 | # define ia32_init_pp_list() 0 |
| 51 | #endif |
| 52 | |
| 53 | /* sigcontext.h */ |
| 54 | /* |
| 55 | * As documented in the iBCS2 standard.. |
| 56 | * |
| 57 | * The first part of "struct _fpstate" is just the |
| 58 | * normal i387 hardware setup, the extra "status" |
| 59 | * word is used to save the coprocessor status word |
| 60 | * before entering the handler. |
| 61 | */ |
| 62 | struct _fpreg_ia32 { |
| 63 | unsigned short significand[4]; |
| 64 | unsigned short exponent; |
| 65 | }; |
| 66 | |
| 67 | struct _fpxreg_ia32 { |
| 68 | unsigned short significand[4]; |
| 69 | unsigned short exponent; |
| 70 | unsigned short padding[3]; |
| 71 | }; |
| 72 | |
| 73 | struct _xmmreg_ia32 { |
| 74 | unsigned int element[4]; |
| 75 | }; |
| 76 | |
| 77 | |
| 78 | struct _fpstate_ia32 { |
| 79 | unsigned int cw, |
| 80 | sw, |
| 81 | tag, |
| 82 | ipoff, |
| 83 | cssel, |
| 84 | dataoff, |
| 85 | datasel; |
| 86 | struct _fpreg_ia32 _st[8]; |
| 87 | unsigned short status; |
| 88 | unsigned short magic; /* 0xffff = regular FPU data only */ |
| 89 | |
| 90 | /* FXSR FPU environment */ |
| 91 | unsigned int _fxsr_env[6]; /* FXSR FPU env is ignored */ |
| 92 | unsigned int mxcsr; |
| 93 | unsigned int reserved; |
| 94 | struct _fpxreg_ia32 _fxsr_st[8]; /* FXSR FPU reg data is ignored */ |
| 95 | struct _xmmreg_ia32 _xmm[8]; |
| 96 | unsigned int padding[56]; |
| 97 | }; |
| 98 | |
| 99 | struct sigcontext_ia32 { |
| 100 | unsigned short gs, __gsh; |
| 101 | unsigned short fs, __fsh; |
| 102 | unsigned short es, __esh; |
| 103 | unsigned short ds, __dsh; |
| 104 | unsigned int edi; |
| 105 | unsigned int esi; |
| 106 | unsigned int ebp; |
| 107 | unsigned int esp; |
| 108 | unsigned int ebx; |
| 109 | unsigned int edx; |
| 110 | unsigned int ecx; |
| 111 | unsigned int eax; |
| 112 | unsigned int trapno; |
| 113 | unsigned int err; |
| 114 | unsigned int eip; |
| 115 | unsigned short cs, __csh; |
| 116 | unsigned int eflags; |
| 117 | unsigned int esp_at_signal; |
| 118 | unsigned short ss, __ssh; |
| 119 | unsigned int fpstate; /* really (struct _fpstate_ia32 *) */ |
| 120 | unsigned int oldmask; |
| 121 | unsigned int cr2; |
| 122 | }; |
| 123 | |
| 124 | /* user.h */ |
| 125 | /* |
| 126 | * IA32 (Pentium III/4) FXSR, SSE support |
| 127 | * |
| 128 | * Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for |
| 129 | * interacting with the FXSR-format floating point environment. Floating |
| 130 | * point data can be accessed in the regular format in the usual manner, |
| 131 | * and both the standard and SIMD floating point data can be accessed via |
| 132 | * the new ptrace requests. In either case, changes to the FPU environment |
| 133 | * will be reflected in the task's state as expected. |
| 134 | */ |
| 135 | struct ia32_user_i387_struct { |
| 136 | int cwd; |
| 137 | int swd; |
| 138 | int twd; |
| 139 | int fip; |
| 140 | int fcs; |
| 141 | int foo; |
| 142 | int fos; |
| 143 | /* 8*10 bytes for each FP-reg = 80 bytes */ |
| 144 | struct _fpreg_ia32 st_space[8]; |
| 145 | }; |
| 146 | |
| 147 | struct ia32_user_fxsr_struct { |
| 148 | unsigned short cwd; |
| 149 | unsigned short swd; |
| 150 | unsigned short twd; |
| 151 | unsigned short fop; |
| 152 | int fip; |
| 153 | int fcs; |
| 154 | int foo; |
| 155 | int fos; |
| 156 | int mxcsr; |
| 157 | int reserved; |
| 158 | int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */ |
| 159 | int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */ |
| 160 | int padding[56]; |
| 161 | }; |
| 162 | |
| 163 | /* signal.h */ |
| 164 | #define IA32_SET_SA_HANDLER(ka,handler,restorer) \ |
| 165 | ((ka)->sa.sa_handler = (__sighandler_t) \ |
| 166 | (((unsigned long)(restorer) << 32) \ |
| 167 | | ((handler) & 0xffffffff))) |
| 168 | #define IA32_SA_HANDLER(ka) ((unsigned long) (ka)->sa.sa_handler & 0xffffffff) |
| 169 | #define IA32_SA_RESTORER(ka) ((unsigned long) (ka)->sa.sa_handler >> 32) |
| 170 | |
| 171 | #define __IA32_NR_sigreturn 119 |
| 172 | #define __IA32_NR_rt_sigreturn 173 |
| 173 | |
| 174 | struct sigaction32 { |
| 175 | unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */ |
| 176 | unsigned int sa_flags; |
| 177 | unsigned int sa_restorer; /* Another 32 bit pointer */ |
| 178 | compat_sigset_t sa_mask; /* A 32 bit mask */ |
| 179 | }; |
| 180 | |
| 181 | struct old_sigaction32 { |
| 182 | unsigned int sa_handler; /* Really a pointer, but need to deal |
| 183 | with 32 bits */ |
| 184 | compat_old_sigset_t sa_mask; /* A 32 bit mask */ |
| 185 | unsigned int sa_flags; |
| 186 | unsigned int sa_restorer; /* Another 32 bit pointer */ |
| 187 | }; |
| 188 | |
| 189 | typedef struct sigaltstack_ia32 { |
| 190 | unsigned int ss_sp; |
| 191 | int ss_flags; |
| 192 | unsigned int ss_size; |
| 193 | } stack_ia32_t; |
| 194 | |
| 195 | struct ucontext_ia32 { |
| 196 | unsigned int uc_flags; |
| 197 | unsigned int uc_link; |
| 198 | stack_ia32_t uc_stack; |
| 199 | struct sigcontext_ia32 uc_mcontext; |
| 200 | sigset_t uc_sigmask; /* mask last for extensibility */ |
| 201 | }; |
| 202 | |
| 203 | struct stat64 { |
| 204 | unsigned long long st_dev; |
| 205 | unsigned char __pad0[4]; |
| 206 | unsigned int __st_ino; |
| 207 | unsigned int st_mode; |
| 208 | unsigned int st_nlink; |
| 209 | unsigned int st_uid; |
| 210 | unsigned int st_gid; |
| 211 | unsigned long long st_rdev; |
| 212 | unsigned char __pad3[4]; |
| 213 | unsigned int st_size_lo; |
| 214 | unsigned int st_size_hi; |
| 215 | unsigned int st_blksize; |
| 216 | unsigned int st_blocks; /* Number 512-byte blocks allocated. */ |
| 217 | unsigned int __pad4; /* future possible st_blocks high bits */ |
| 218 | unsigned int st_atime; |
| 219 | unsigned int st_atime_nsec; |
| 220 | unsigned int st_mtime; |
| 221 | unsigned int st_mtime_nsec; |
| 222 | unsigned int st_ctime; |
| 223 | unsigned int st_ctime_nsec; |
| 224 | unsigned int st_ino_lo; |
| 225 | unsigned int st_ino_hi; |
| 226 | }; |
| 227 | |
| 228 | typedef struct compat_siginfo { |
| 229 | int si_signo; |
| 230 | int si_errno; |
| 231 | int si_code; |
| 232 | |
| 233 | union { |
| 234 | int _pad[((128/sizeof(int)) - 3)]; |
| 235 | |
| 236 | /* kill() */ |
| 237 | struct { |
| 238 | unsigned int _pid; /* sender's pid */ |
| 239 | unsigned int _uid; /* sender's uid */ |
| 240 | } _kill; |
| 241 | |
| 242 | /* POSIX.1b timers */ |
| 243 | struct { |
Stephen Rothwell | 0d77e5a | 2005-06-23 00:10:14 -0700 | [diff] [blame] | 244 | compat_timer_t _tid; /* timer id */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | int _overrun; /* overrun count */ |
| 246 | char _pad[sizeof(unsigned int) - sizeof(int)]; |
| 247 | compat_sigval_t _sigval; /* same as below */ |
| 248 | int _sys_private; /* not to be passed to user */ |
| 249 | } _timer; |
| 250 | |
| 251 | /* POSIX.1b signals */ |
| 252 | struct { |
| 253 | unsigned int _pid; /* sender's pid */ |
| 254 | unsigned int _uid; /* sender's uid */ |
| 255 | compat_sigval_t _sigval; |
| 256 | } _rt; |
| 257 | |
| 258 | /* SIGCHLD */ |
| 259 | struct { |
| 260 | unsigned int _pid; /* which child */ |
| 261 | unsigned int _uid; /* sender's uid */ |
| 262 | int _status; /* exit code */ |
| 263 | compat_clock_t _utime; |
| 264 | compat_clock_t _stime; |
| 265 | } _sigchld; |
| 266 | |
| 267 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ |
| 268 | struct { |
| 269 | unsigned int _addr; /* faulting insn/memory ref. */ |
| 270 | } _sigfault; |
| 271 | |
| 272 | /* SIGPOLL */ |
| 273 | struct { |
| 274 | int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ |
| 275 | int _fd; |
| 276 | } _sigpoll; |
| 277 | } _sifields; |
| 278 | } compat_siginfo_t; |
| 279 | |
| 280 | struct old_linux32_dirent { |
| 281 | u32 d_ino; |
| 282 | u32 d_offset; |
| 283 | u16 d_namlen; |
| 284 | char d_name[1]; |
| 285 | }; |
| 286 | |
| 287 | /* |
| 288 | * IA-32 ELF specific definitions for IA-64. |
| 289 | */ |
| 290 | |
| 291 | #define _ASM_IA64_ELF_H /* Don't include elf.h */ |
| 292 | |
| 293 | #include <linux/sched.h> |
| 294 | #include <asm/processor.h> |
| 295 | |
| 296 | /* |
| 297 | * This is used to ensure we don't load something for the wrong architecture. |
| 298 | */ |
| 299 | #define elf_check_arch(x) ((x)->e_machine == EM_386) |
| 300 | |
| 301 | /* |
| 302 | * These are used to set parameters in the core dumps. |
| 303 | */ |
| 304 | #define ELF_CLASS ELFCLASS32 |
| 305 | #define ELF_DATA ELFDATA2LSB |
| 306 | #define ELF_ARCH EM_386 |
| 307 | |
| 308 | #define IA32_PAGE_OFFSET 0xc0000000 |
| 309 | #define IA32_STACK_TOP IA32_PAGE_OFFSET |
| 310 | #define IA32_GATE_OFFSET IA32_PAGE_OFFSET |
| 311 | #define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE |
| 312 | |
| 313 | /* |
| 314 | * The system segments (GDT, TSS, LDT) have to be mapped below 4GB so the IA-32 engine can |
| 315 | * access them. |
| 316 | */ |
| 317 | #define IA32_GDT_OFFSET (IA32_PAGE_OFFSET + PAGE_SIZE) |
| 318 | #define IA32_TSS_OFFSET (IA32_PAGE_OFFSET + 2*PAGE_SIZE) |
| 319 | #define IA32_LDT_OFFSET (IA32_PAGE_OFFSET + 3*PAGE_SIZE) |
| 320 | |
| 321 | #define ELF_EXEC_PAGESIZE IA32_PAGE_SIZE |
| 322 | |
| 323 | /* |
| 324 | * This is the location that an ET_DYN program is loaded if exec'ed. |
| 325 | * Typical use of this is to invoke "./ld.so someprog" to test out a |
| 326 | * new version of the loader. We need to make sure that it is out of |
| 327 | * the way of the program that it will "exec", and that there is |
| 328 | * sufficient room for the brk. |
| 329 | */ |
| 330 | #define ELF_ET_DYN_BASE (IA32_PAGE_OFFSET/3 + 0x1000000) |
| 331 | |
| 332 | void ia64_elf32_init(struct pt_regs *regs); |
| 333 | #define ELF_PLAT_INIT(_r, load_addr) ia64_elf32_init(_r) |
| 334 | |
| 335 | #define elf_addr_t u32 |
| 336 | |
| 337 | /* This macro yields a bitmask that programs can use to figure out |
| 338 | what instruction set this CPU supports. */ |
| 339 | #define ELF_HWCAP 0 |
| 340 | |
| 341 | /* This macro yields a string that ld.so will use to load |
| 342 | implementation specific libraries for optimization. Not terribly |
| 343 | relevant until we have real hardware to play with... */ |
| 344 | #define ELF_PLATFORM NULL |
| 345 | |
| 346 | #ifdef __KERNEL__ |
| 347 | # define SET_PERSONALITY(EX,IBCS2) \ |
| 348 | (current->personality = (IBCS2) ? PER_SVR4 : PER_LINUX) |
| 349 | #endif |
| 350 | |
| 351 | #define IA32_EFLAG 0x200 |
| 352 | |
| 353 | /* |
| 354 | * IA-32 ELF specific definitions for IA-64. |
| 355 | */ |
| 356 | |
| 357 | #define __USER_CS 0x23 |
| 358 | #define __USER_DS 0x2B |
| 359 | |
| 360 | /* |
| 361 | * The per-cpu GDT has 32 entries: see <asm-i386/segment.h> |
| 362 | */ |
| 363 | #define GDT_ENTRIES 32 |
| 364 | |
| 365 | #define GDT_SIZE (GDT_ENTRIES * 8) |
| 366 | |
| 367 | #define TSS_ENTRY 14 |
| 368 | #define LDT_ENTRY (TSS_ENTRY + 1) |
| 369 | |
| 370 | #define IA32_SEGSEL_RPL (0x3 << 0) |
| 371 | #define IA32_SEGSEL_TI (0x1 << 2) |
| 372 | #define IA32_SEGSEL_INDEX_SHIFT 3 |
| 373 | |
| 374 | #define _TSS ((unsigned long) TSS_ENTRY << IA32_SEGSEL_INDEX_SHIFT) |
| 375 | #define _LDT ((unsigned long) LDT_ENTRY << IA32_SEGSEL_INDEX_SHIFT) |
| 376 | |
| 377 | #define IA32_SEG_BASE 16 |
| 378 | #define IA32_SEG_TYPE 40 |
| 379 | #define IA32_SEG_SYS 44 |
| 380 | #define IA32_SEG_DPL 45 |
| 381 | #define IA32_SEG_P 47 |
| 382 | #define IA32_SEG_HIGH_LIMIT 48 |
| 383 | #define IA32_SEG_AVL 52 |
| 384 | #define IA32_SEG_DB 54 |
| 385 | #define IA32_SEG_G 55 |
| 386 | #define IA32_SEG_HIGH_BASE 56 |
| 387 | |
| 388 | #define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, gran) \ |
| 389 | (((limit) & 0xffff) \ |
| 390 | | (((unsigned long) (base) & 0xffffff) << IA32_SEG_BASE) \ |
| 391 | | ((unsigned long) (segtype) << IA32_SEG_TYPE) \ |
| 392 | | ((unsigned long) (nonsysseg) << IA32_SEG_SYS) \ |
| 393 | | ((unsigned long) (dpl) << IA32_SEG_DPL) \ |
| 394 | | ((unsigned long) (segpresent) << IA32_SEG_P) \ |
| 395 | | ((((unsigned long) (limit) >> 16) & 0xf) << IA32_SEG_HIGH_LIMIT) \ |
| 396 | | ((unsigned long) (avl) << IA32_SEG_AVL) \ |
| 397 | | ((unsigned long) (segdb) << IA32_SEG_DB) \ |
| 398 | | ((unsigned long) (gran) << IA32_SEG_G) \ |
| 399 | | ((((unsigned long) (base) >> 24) & 0xff) << IA32_SEG_HIGH_BASE)) |
| 400 | |
| 401 | #define SEG_LIM 32 |
| 402 | #define SEG_TYPE 52 |
| 403 | #define SEG_SYS 56 |
| 404 | #define SEG_DPL 57 |
| 405 | #define SEG_P 59 |
| 406 | #define SEG_AVL 60 |
| 407 | #define SEG_DB 62 |
| 408 | #define SEG_G 63 |
| 409 | |
| 410 | /* Unscramble an IA-32 segment descriptor into the IA-64 format. */ |
| 411 | #define IA32_SEG_UNSCRAMBLE(sd) \ |
| 412 | ( (((sd) >> IA32_SEG_BASE) & 0xffffff) | ((((sd) >> IA32_SEG_HIGH_BASE) & 0xff) << 24) \ |
| 413 | | ((((sd) & 0xffff) | ((((sd) >> IA32_SEG_HIGH_LIMIT) & 0xf) << 16)) << SEG_LIM) \ |
| 414 | | ((((sd) >> IA32_SEG_TYPE) & 0xf) << SEG_TYPE) \ |
| 415 | | ((((sd) >> IA32_SEG_SYS) & 0x1) << SEG_SYS) \ |
| 416 | | ((((sd) >> IA32_SEG_DPL) & 0x3) << SEG_DPL) \ |
| 417 | | ((((sd) >> IA32_SEG_P) & 0x1) << SEG_P) \ |
| 418 | | ((((sd) >> IA32_SEG_AVL) & 0x1) << SEG_AVL) \ |
| 419 | | ((((sd) >> IA32_SEG_DB) & 0x1) << SEG_DB) \ |
| 420 | | ((((sd) >> IA32_SEG_G) & 0x1) << SEG_G)) |
| 421 | |
| 422 | #define IA32_IOBASE 0x2000000000000000UL /* Virtual address for I/O space */ |
| 423 | |
| 424 | #define IA32_CR0 0x80000001 /* Enable PG and PE bits */ |
| 425 | #define IA32_CR4 0x600 /* MMXEX and FXSR on */ |
| 426 | |
| 427 | /* |
| 428 | * IA32 floating point control registers starting values |
| 429 | */ |
| 430 | |
| 431 | #define IA32_FSR_DEFAULT 0x55550000 /* set all tag bits */ |
| 432 | #define IA32_FCR_DEFAULT 0x17800000037fUL /* extended precision, all masks */ |
| 433 | |
| 434 | #define IA32_PTRACE_GETREGS 12 |
| 435 | #define IA32_PTRACE_SETREGS 13 |
| 436 | #define IA32_PTRACE_GETFPREGS 14 |
| 437 | #define IA32_PTRACE_SETFPREGS 15 |
| 438 | #define IA32_PTRACE_GETFPXREGS 18 |
| 439 | #define IA32_PTRACE_SETFPXREGS 19 |
| 440 | |
| 441 | #define ia32_start_thread(regs,new_ip,new_sp) do { \ |
| 442 | set_fs(USER_DS); \ |
| 443 | ia64_psr(regs)->cpl = 3; /* set user mode */ \ |
| 444 | ia64_psr(regs)->ri = 0; /* clear return slot number */ \ |
| 445 | ia64_psr(regs)->is = 1; /* IA-32 instruction set */ \ |
| 446 | regs->cr_iip = new_ip; \ |
| 447 | regs->ar_rsc = 0xc; /* enforced lazy mode, priv. level 3 */ \ |
| 448 | regs->ar_rnat = 0; \ |
| 449 | regs->loadrs = 0; \ |
| 450 | regs->r12 = new_sp; \ |
| 451 | } while (0) |
| 452 | |
| 453 | /* |
| 454 | * Local Descriptor Table (LDT) related declarations. |
| 455 | */ |
| 456 | |
| 457 | #define IA32_LDT_ENTRIES 8192 /* Maximum number of LDT entries supported. */ |
| 458 | #define IA32_LDT_ENTRY_SIZE 8 /* The size of each LDT entry. */ |
| 459 | |
| 460 | #define LDT_entry_a(info) \ |
| 461 | ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) |
| 462 | |
| 463 | #define LDT_entry_b(info) \ |
| 464 | (((info)->base_addr & 0xff000000) | \ |
| 465 | (((info)->base_addr & 0x00ff0000) >> 16) | \ |
| 466 | ((info)->limit & 0xf0000) | \ |
| 467 | (((info)->read_exec_only ^ 1) << 9) | \ |
| 468 | ((info)->contents << 10) | \ |
| 469 | (((info)->seg_not_present ^ 1) << 15) | \ |
| 470 | ((info)->seg_32bit << 22) | \ |
| 471 | ((info)->limit_in_pages << 23) | \ |
| 472 | ((info)->useable << 20) | \ |
| 473 | 0x7100) |
| 474 | |
| 475 | #define LDT_empty(info) ( \ |
| 476 | (info)->base_addr == 0 && \ |
| 477 | (info)->limit == 0 && \ |
| 478 | (info)->contents == 0 && \ |
| 479 | (info)->read_exec_only == 1 && \ |
| 480 | (info)->seg_32bit == 0 && \ |
| 481 | (info)->limit_in_pages == 0 && \ |
| 482 | (info)->seg_not_present == 1 && \ |
| 483 | (info)->useable == 0 ) |
| 484 | |
| 485 | static inline void |
| 486 | load_TLS (struct thread_struct *t, unsigned int cpu) |
| 487 | { |
| 488 | extern unsigned long *cpu_gdt_table[NR_CPUS]; |
| 489 | |
| 490 | memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 0, &t->tls_array[0], sizeof(long)); |
| 491 | memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 1, &t->tls_array[1], sizeof(long)); |
| 492 | memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 2, &t->tls_array[2], sizeof(long)); |
| 493 | } |
| 494 | |
| 495 | struct ia32_user_desc { |
| 496 | unsigned int entry_number; |
| 497 | unsigned int base_addr; |
| 498 | unsigned int limit; |
| 499 | unsigned int seg_32bit:1; |
| 500 | unsigned int contents:2; |
| 501 | unsigned int read_exec_only:1; |
| 502 | unsigned int limit_in_pages:1; |
| 503 | unsigned int seg_not_present:1; |
| 504 | unsigned int useable:1; |
| 505 | }; |
| 506 | |
| 507 | struct linux_binprm; |
| 508 | |
| 509 | extern void ia32_init_addr_space (struct pt_regs *regs); |
| 510 | extern int ia32_setup_arg_pages (struct linux_binprm *bprm, int exec_stack); |
| 511 | extern unsigned long ia32_do_mmap (struct file *, unsigned long, unsigned long, int, int, loff_t); |
| 512 | extern void ia32_load_segment_descriptors (struct task_struct *task); |
| 513 | |
| 514 | #define ia32f2ia64f(dst,src) \ |
| 515 | do { \ |
| 516 | ia64_ldfe(6,src); \ |
| 517 | ia64_stop(); \ |
| 518 | ia64_stf_spill(dst, 6); \ |
| 519 | } while(0) |
| 520 | |
| 521 | #define ia64f2ia32f(dst,src) \ |
| 522 | do { \ |
| 523 | ia64_ldf_fill(6, src); \ |
| 524 | ia64_stop(); \ |
| 525 | ia64_stfe(dst, 6); \ |
| 526 | } while(0) |
| 527 | |
| 528 | struct user_regs_struct32 { |
| 529 | __u32 ebx, ecx, edx, esi, edi, ebp, eax; |
| 530 | unsigned short ds, __ds, es, __es; |
| 531 | unsigned short fs, __fs, gs, __gs; |
| 532 | __u32 orig_eax, eip; |
| 533 | unsigned short cs, __cs; |
| 534 | __u32 eflags, esp; |
| 535 | unsigned short ss, __ss; |
| 536 | }; |
| 537 | |
| 538 | /* Prototypes for use in elfcore32.h */ |
| 539 | extern int save_ia32_fpstate (struct task_struct *, struct ia32_user_i387_struct __user *); |
| 540 | extern int save_ia32_fpxstate (struct task_struct *, struct ia32_user_fxsr_struct __user *); |
| 541 | |
| 542 | #endif /* !CONFIG_IA32_SUPPORT */ |
| 543 | |
| 544 | #endif /* _ASM_IA64_IA32_PRIV_H */ |