+++ /dev/null
-#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 */
git.samba.org / sfrench / cifs-2.6.git / blobdiff