diff options
Diffstat (limited to 'arch/ia64/ia32/ia32priv.h')
-rw-r--r-- | arch/ia64/ia32/ia32priv.h | 532 |
1 files changed, 0 insertions, 532 deletions
diff --git a/arch/ia64/ia32/ia32priv.h b/arch/ia64/ia32/ia32priv.h deleted file mode 100644 index 0f15349c3c6b..000000000000 --- a/arch/ia64/ia32/ia32priv.h +++ /dev/null @@ -1,532 +0,0 @@ -#ifndef _ASM_IA64_IA32_PRIV_H -#define _ASM_IA64_IA32_PRIV_H - - -#include <asm/ia32.h> - -#ifdef CONFIG_IA32_SUPPORT - -#include <linux/binfmts.h> -#include <linux/compat.h> -#include <linux/rbtree.h> - -#include <asm/processor.h> - -/* - * 32 bit structures for IA32 support. - */ - -#define IA32_PAGE_SIZE (1UL << IA32_PAGE_SHIFT) -#define IA32_PAGE_MASK (~(IA32_PAGE_SIZE - 1)) -#define IA32_PAGE_ALIGN(addr) (((addr) + IA32_PAGE_SIZE - 1) & IA32_PAGE_MASK) -#define IA32_CLOCKS_PER_SEC 100 /* Cast in stone for IA32 Linux */ - -/* - * partially mapped pages provide precise accounting of which 4k sub pages - * are mapped and which ones are not, thereby improving IA-32 compatibility. - */ -struct ia64_partial_page { - struct ia64_partial_page *next; /* linked list, sorted by address */ - struct rb_node pp_rb; - /* 64K is the largest "normal" page supported by ia64 ABI. So 4K*64 - * should suffice.*/ - unsigned long bitmap; - unsigned int base; -}; - -struct ia64_partial_page_list { - struct ia64_partial_page *pp_head; /* list head, points to the lowest - * addressed partial page */ - struct rb_root ppl_rb; - struct ia64_partial_page *pp_hint; /* pp_hint->next is the last - * accessed partial page */ - atomic_t pp_count; /* reference count */ -}; - -#if PAGE_SHIFT > IA32_PAGE_SHIFT -struct ia64_partial_page_list* ia32_init_pp_list (void); -#else -# define ia32_init_pp_list() 0 -#endif - -/* sigcontext.h */ -/* - * As documented in the iBCS2 standard.. - * - * The first part of "struct _fpstate" is just the - * normal i387 hardware setup, the extra "status" - * word is used to save the coprocessor status word - * before entering the handler. - */ -struct _fpreg_ia32 { - unsigned short significand[4]; - unsigned short exponent; -}; - -struct _fpxreg_ia32 { - unsigned short significand[4]; - unsigned short exponent; - unsigned short padding[3]; -}; - -struct _xmmreg_ia32 { - unsigned int element[4]; -}; - - -struct _fpstate_ia32 { - unsigned int cw, - sw, - tag, - ipoff, - cssel, - dataoff, - datasel; - struct _fpreg_ia32 _st[8]; - unsigned short status; - unsigned short magic; /* 0xffff = regular FPU data only */ - - /* FXSR FPU environment */ - unsigned int _fxsr_env[6]; /* FXSR FPU env is ignored */ - unsigned int mxcsr; - unsigned int reserved; - struct _fpxreg_ia32 _fxsr_st[8]; /* FXSR FPU reg data is ignored */ - struct _xmmreg_ia32 _xmm[8]; - unsigned int padding[56]; -}; - -struct sigcontext_ia32 { - unsigned short gs, __gsh; - unsigned short fs, __fsh; - unsigned short es, __esh; - unsigned short ds, __dsh; - unsigned int edi; - unsigned int esi; - unsigned int ebp; - unsigned int esp; - unsigned int ebx; - unsigned int edx; - unsigned int ecx; - unsigned int eax; - unsigned int trapno; - unsigned int err; - unsigned int eip; - unsigned short cs, __csh; - unsigned int eflags; - unsigned int esp_at_signal; - unsigned short ss, __ssh; - unsigned int fpstate; /* really (struct _fpstate_ia32 *) */ - unsigned int oldmask; - unsigned int cr2; -}; - -/* user.h */ -/* - * IA32 (Pentium III/4) FXSR, SSE support - * - * Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for - * interacting with the FXSR-format floating point environment. Floating - * point data can be accessed in the regular format in the usual manner, - * and both the standard and SIMD floating point data can be accessed via - * the new ptrace requests. In either case, changes to the FPU environment - * will be reflected in the task's state as expected. - */ -struct ia32_user_i387_struct { - int cwd; - int swd; - int twd; - int fip; - int fcs; - int foo; - int fos; - /* 8*10 bytes for each FP-reg = 80 bytes */ - struct _fpreg_ia32 st_space[8]; -}; - -struct ia32_user_fxsr_struct { - unsigned short cwd; - unsigned short swd; - unsigned short twd; - unsigned short fop; - int fip; - int fcs; - int foo; - int fos; - int mxcsr; - int reserved; - int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */ - int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */ - int padding[56]; -}; - -/* signal.h */ -#define IA32_SET_SA_HANDLER(ka,handler,restorer) \ - ((ka)->sa.sa_handler = (__sighandler_t) \ - (((unsigned long)(restorer) << 32) \ - | ((handler) & 0xffffffff))) -#define IA32_SA_HANDLER(ka) ((unsigned long) (ka)->sa.sa_handler & 0xffffffff) -#define IA32_SA_RESTORER(ka) ((unsigned long) (ka)->sa.sa_handler >> 32) - -#define __IA32_NR_sigreturn 119 -#define __IA32_NR_rt_sigreturn 173 - -struct sigaction32 { - unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */ - unsigned int sa_flags; - unsigned int sa_restorer; /* Another 32 bit pointer */ - compat_sigset_t sa_mask; /* A 32 bit mask */ -}; - -struct old_sigaction32 { - unsigned int sa_handler; /* Really a pointer, but need to deal - with 32 bits */ - compat_old_sigset_t sa_mask; /* A 32 bit mask */ - unsigned int sa_flags; - unsigned int sa_restorer; /* Another 32 bit pointer */ -}; - -typedef struct sigaltstack_ia32 { - unsigned int ss_sp; - int ss_flags; - unsigned int ss_size; -} stack_ia32_t; - -struct ucontext_ia32 { - unsigned int uc_flags; - unsigned int uc_link; - stack_ia32_t uc_stack; - struct sigcontext_ia32 uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -struct stat64 { - unsigned long long st_dev; - unsigned char __pad0[4]; - unsigned int __st_ino; - unsigned int st_mode; - unsigned int st_nlink; - unsigned int st_uid; - unsigned int st_gid; - unsigned long long st_rdev; - unsigned char __pad3[4]; - unsigned int st_size_lo; - unsigned int st_size_hi; - unsigned int st_blksize; - unsigned int st_blocks; /* Number 512-byte blocks allocated. */ - unsigned int __pad4; /* future possible st_blocks high bits */ - unsigned int st_atime; - unsigned int st_atime_nsec; - unsigned int st_mtime; - unsigned int st_mtime_nsec; - unsigned int st_ctime; - unsigned int st_ctime_nsec; - unsigned int st_ino_lo; - unsigned int st_ino_hi; -}; - -typedef struct compat_siginfo { - int si_signo; - int si_errno; - int si_code; - - union { - int _pad[((128/sizeof(int)) - 3)]; - - /* kill() */ - struct { - unsigned int _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - } _kill; - - /* POSIX.1b timers */ - struct { - compat_timer_t _tid; /* timer id */ - int _overrun; /* overrun count */ - char _pad[sizeof(unsigned int) - sizeof(int)]; - compat_sigval_t _sigval; /* same as below */ - int _sys_private; /* not to be passed to user */ - } _timer; - - /* POSIX.1b signals */ - struct { - unsigned int _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - compat_sigval_t _sigval; - } _rt; - - /* SIGCHLD */ - struct { - unsigned int _pid; /* which child */ - unsigned int _uid; /* sender's uid */ - int _status; /* exit code */ - compat_clock_t _utime; - compat_clock_t _stime; - } _sigchld; - - /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ - struct { - unsigned int _addr; /* faulting insn/memory ref. */ - } _sigfault; - - /* SIGPOLL */ - struct { - int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ - int _fd; - } _sigpoll; - } _sifields; -} compat_siginfo_t; - -/* - * IA-32 ELF specific definitions for IA-64. - */ - -#define _ASM_IA64_ELF_H /* Don't include elf.h */ - -#include <linux/sched.h> - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ((x)->e_machine == EM_386) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_386 - -#define IA32_STACK_TOP IA32_PAGE_OFFSET -#define IA32_GATE_OFFSET IA32_PAGE_OFFSET -#define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE - -/* - * The system segments (GDT, TSS, LDT) have to be mapped below 4GB so the IA-32 engine can - * access them. - */ -#define IA32_GDT_OFFSET (IA32_PAGE_OFFSET + PAGE_SIZE) -#define IA32_TSS_OFFSET (IA32_PAGE_OFFSET + 2*PAGE_SIZE) -#define IA32_LDT_OFFSET (IA32_PAGE_OFFSET + 3*PAGE_SIZE) - -#define ELF_EXEC_PAGESIZE IA32_PAGE_SIZE - -/* - * This is the location that an ET_DYN program is loaded if exec'ed. - * Typical use of this is to invoke "./ld.so someprog" to test out a - * new version of the loader. We need to make sure that it is out of - * the way of the program that it will "exec", and that there is - * sufficient room for the brk. - */ -#define ELF_ET_DYN_BASE (IA32_PAGE_OFFSET/3 + 0x1000000) - -void ia64_elf32_init(struct pt_regs *regs); -#define ELF_PLAT_INIT(_r, load_addr) ia64_elf32_init(_r) - -/* This macro yields a bitmask that programs can use to figure out - what instruction set this CPU supports. */ -#define ELF_HWCAP 0 - -/* This macro yields a string that ld.so will use to load - implementation specific libraries for optimization. Not terribly - relevant until we have real hardware to play with... */ -#define ELF_PLATFORM NULL - -#ifdef __KERNEL__ -# define SET_PERSONALITY(EX) \ - (current->personality = PER_LINUX) -#endif - -#define IA32_EFLAG 0x200 - -/* - * IA-32 ELF specific definitions for IA-64. - */ - -#define __USER_CS 0x23 -#define __USER_DS 0x2B - -/* - * The per-cpu GDT has 32 entries: see <asm-i386/segment.h> - */ -#define GDT_ENTRIES 32 - -#define GDT_SIZE (GDT_ENTRIES * 8) - -#define TSS_ENTRY 14 -#define LDT_ENTRY (TSS_ENTRY + 1) - -#define IA32_SEGSEL_RPL (0x3 << 0) -#define IA32_SEGSEL_TI (0x1 << 2) -#define IA32_SEGSEL_INDEX_SHIFT 3 - -#define _TSS ((unsigned long) TSS_ENTRY << IA32_SEGSEL_INDEX_SHIFT) -#define _LDT ((unsigned long) LDT_ENTRY << IA32_SEGSEL_INDEX_SHIFT) - -#define IA32_SEG_BASE 16 -#define IA32_SEG_TYPE 40 -#define IA32_SEG_SYS 44 -#define IA32_SEG_DPL 45 -#define IA32_SEG_P 47 -#define IA32_SEG_HIGH_LIMIT 48 -#define IA32_SEG_AVL 52 -#define IA32_SEG_DB 54 -#define IA32_SEG_G 55 -#define IA32_SEG_HIGH_BASE 56 - -#define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, gran) \ - (((limit) & 0xffff) \ - | (((unsigned long) (base) & 0xffffff) << IA32_SEG_BASE) \ - | ((unsigned long) (segtype) << IA32_SEG_TYPE) \ - | ((unsigned long) (nonsysseg) << IA32_SEG_SYS) \ - | ((unsigned long) (dpl) << IA32_SEG_DPL) \ - | ((unsigned long) (segpresent) << IA32_SEG_P) \ - | ((((unsigned long) (limit) >> 16) & 0xf) << IA32_SEG_HIGH_LIMIT) \ - | ((unsigned long) (avl) << IA32_SEG_AVL) \ - | ((unsigned long) (segdb) << IA32_SEG_DB) \ - | ((unsigned long) (gran) << IA32_SEG_G) \ - | ((((unsigned long) (base) >> 24) & 0xff) << IA32_SEG_HIGH_BASE)) - -#define SEG_LIM 32 -#define SEG_TYPE 52 -#define SEG_SYS 56 -#define SEG_DPL 57 -#define SEG_P 59 -#define SEG_AVL 60 -#define SEG_DB 62 -#define SEG_G 63 - -/* Unscramble an IA-32 segment descriptor into the IA-64 format. */ -#define IA32_SEG_UNSCRAMBLE(sd) \ - ( (((sd) >> IA32_SEG_BASE) & 0xffffff) | ((((sd) >> IA32_SEG_HIGH_BASE) & 0xff) << 24) \ - | ((((sd) & 0xffff) | ((((sd) >> IA32_SEG_HIGH_LIMIT) & 0xf) << 16)) << SEG_LIM) \ - | ((((sd) >> IA32_SEG_TYPE) & 0xf) << SEG_TYPE) \ - | ((((sd) >> IA32_SEG_SYS) & 0x1) << SEG_SYS) \ - | ((((sd) >> IA32_SEG_DPL) & 0x3) << SEG_DPL) \ - | ((((sd) >> IA32_SEG_P) & 0x1) << SEG_P) \ - | ((((sd) >> IA32_SEG_AVL) & 0x1) << SEG_AVL) \ - | ((((sd) >> IA32_SEG_DB) & 0x1) << SEG_DB) \ - | ((((sd) >> IA32_SEG_G) & 0x1) << SEG_G)) - -#define IA32_IOBASE 0x2000000000000000UL /* Virtual address for I/O space */ - -#define IA32_CR0 0x80000001 /* Enable PG and PE bits */ -#define IA32_CR4 0x600 /* MMXEX and FXSR on */ - -/* - * IA32 floating point control registers starting values - */ - -#define IA32_FSR_DEFAULT 0x55550000 /* set all tag bits */ -#define IA32_FCR_DEFAULT 0x17800000037fUL /* extended precision, all masks */ - -#define IA32_PTRACE_GETREGS 12 -#define IA32_PTRACE_SETREGS 13 -#define IA32_PTRACE_GETFPREGS 14 -#define IA32_PTRACE_SETFPREGS 15 -#define IA32_PTRACE_GETFPXREGS 18 -#define IA32_PTRACE_SETFPXREGS 19 - -#define ia32_start_thread(regs,new_ip,new_sp) do { \ - set_fs(USER_DS); \ - ia64_psr(regs)->cpl = 3; /* set user mode */ \ - ia64_psr(regs)->ri = 0; /* clear return slot number */ \ - ia64_psr(regs)->is = 1; /* IA-32 instruction set */ \ - regs->cr_iip = new_ip; \ - regs->ar_rsc = 0xc; /* enforced lazy mode, priv. level 3 */ \ - regs->ar_rnat = 0; \ - regs->loadrs = 0; \ - regs->r12 = new_sp; \ -} while (0) - -/* - * Local Descriptor Table (LDT) related declarations. - */ - -#define IA32_LDT_ENTRIES 8192 /* Maximum number of LDT entries supported. */ -#define IA32_LDT_ENTRY_SIZE 8 /* The size of each LDT entry. */ - -#define LDT_entry_a(info) \ - ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) - -#define LDT_entry_b(info) \ - (((info)->base_addr & 0xff000000) | \ - (((info)->base_addr & 0x00ff0000) >> 16) | \ - ((info)->limit & 0xf0000) | \ - (((info)->read_exec_only ^ 1) << 9) | \ - ((info)->contents << 10) | \ - (((info)->seg_not_present ^ 1) << 15) | \ - ((info)->seg_32bit << 22) | \ - ((info)->limit_in_pages << 23) | \ - ((info)->useable << 20) | \ - 0x7100) - -#define LDT_empty(info) ( \ - (info)->base_addr == 0 && \ - (info)->limit == 0 && \ - (info)->contents == 0 && \ - (info)->read_exec_only == 1 && \ - (info)->seg_32bit == 0 && \ - (info)->limit_in_pages == 0 && \ - (info)->seg_not_present == 1 && \ - (info)->useable == 0 ) - -static inline void -load_TLS (struct thread_struct *t, unsigned int cpu) -{ - extern unsigned long *cpu_gdt_table[NR_CPUS]; - - memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 0, &t->tls_array[0], sizeof(long)); - memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 1, &t->tls_array[1], sizeof(long)); - memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 2, &t->tls_array[2], sizeof(long)); -} - -struct ia32_user_desc { - unsigned int entry_number; - unsigned int base_addr; - unsigned int limit; - unsigned int seg_32bit:1; - unsigned int contents:2; - unsigned int read_exec_only:1; - unsigned int limit_in_pages:1; - unsigned int seg_not_present:1; - unsigned int useable:1; -}; - -struct linux_binprm; - -extern void ia32_init_addr_space (struct pt_regs *regs); -extern int ia32_setup_arg_pages (struct linux_binprm *bprm, int exec_stack); -extern unsigned long ia32_do_mmap (struct file *, unsigned long, unsigned long, int, int, loff_t); -extern void ia32_load_segment_descriptors (struct task_struct *task); - -#define ia32f2ia64f(dst,src) \ -do { \ - ia64_ldfe(6,src); \ - ia64_stop(); \ - ia64_stf_spill(dst, 6); \ -} while(0) - -#define ia64f2ia32f(dst,src) \ -do { \ - ia64_ldf_fill(6, src); \ - ia64_stop(); \ - ia64_stfe(dst, 6); \ -} while(0) - -struct user_regs_struct32 { - __u32 ebx, ecx, edx, esi, edi, ebp, eax; - unsigned short ds, __ds, es, __es; - unsigned short fs, __fs, gs, __gs; - __u32 orig_eax, eip; - unsigned short cs, __cs; - __u32 eflags, esp; - unsigned short ss, __ss; -}; - -/* Prototypes for use in elfcore32.h */ -extern int save_ia32_fpstate (struct task_struct *, struct ia32_user_i387_struct __user *); -extern int save_ia32_fpxstate (struct task_struct *, struct ia32_user_fxsr_struct __user *); - -#endif /* !CONFIG_IA32_SUPPORT */ - -#endif /* _ASM_IA64_IA32_PRIV_H */ |