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authorTony Luck <tony.luck@intel.com>2010-02-08 13:42:17 -0500
committerTony Luck <tony.luck@intel.com>2010-02-08 13:42:17 -0500
commit32974ad4907cdde6c9de612cd1b2ee0568fb9409 (patch)
tree46d883f7f4fb3f4a5cee8ec9eb2c6b4939d7ae10 /arch/ia64/kernel
parent6339204ecc2aa2067a99595522de0403f0854bb8 (diff)
[IA64] Remove COMPAT_IA32 support
This has been broken since May 2008 when Al Viro killed altroot support. Since nobody has complained, it would appear that there are no users of this code (A plausible theory since the main OSVs that support ia64 prefer to use the IA32-EL software emulation). Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/audit.c21
-rw-r--r--arch/ia64/kernel/entry.S39
-rw-r--r--arch/ia64/kernel/ivt.S114
-rw-r--r--arch/ia64/kernel/process.c55
-rw-r--r--arch/ia64/kernel/ptrace.c14
-rw-r--r--arch/ia64/kernel/setup.c5
-rw-r--r--arch/ia64/kernel/signal.c54
-rw-r--r--arch/ia64/kernel/smpboot.c5
-rw-r--r--arch/ia64/kernel/traps.c9
9 files changed, 19 insertions, 297 deletions
diff --git a/arch/ia64/kernel/audit.c b/arch/ia64/kernel/audit.c
index f3802ae89b10..96a9d18ff4c4 100644
--- a/arch/ia64/kernel/audit.c
+++ b/arch/ia64/kernel/audit.c
@@ -30,20 +30,11 @@ static unsigned signal_class[] = {
30 30
31int audit_classify_arch(int arch) 31int audit_classify_arch(int arch)
32{ 32{
33#ifdef CONFIG_IA32_SUPPORT
34 if (arch == AUDIT_ARCH_I386)
35 return 1;
36#endif
37 return 0; 33 return 0;
38} 34}
39 35
40int audit_classify_syscall(int abi, unsigned syscall) 36int audit_classify_syscall(int abi, unsigned syscall)
41{ 37{
42#ifdef CONFIG_IA32_SUPPORT
43 extern int ia32_classify_syscall(unsigned);
44 if (abi == AUDIT_ARCH_I386)
45 return ia32_classify_syscall(syscall);
46#endif
47 switch(syscall) { 38 switch(syscall) {
48 case __NR_open: 39 case __NR_open:
49 return 2; 40 return 2;
@@ -58,18 +49,6 @@ int audit_classify_syscall(int abi, unsigned syscall)
58 49
59static int __init audit_classes_init(void) 50static int __init audit_classes_init(void)
60{ 51{
61#ifdef CONFIG_IA32_SUPPORT
62 extern __u32 ia32_dir_class[];
63 extern __u32 ia32_write_class[];
64 extern __u32 ia32_read_class[];
65 extern __u32 ia32_chattr_class[];
66 extern __u32 ia32_signal_class[];
67 audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class);
68 audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class);
69 audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class);
70 audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class);
71 audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class);
72#endif
73 audit_register_class(AUDIT_CLASS_WRITE, write_class); 52 audit_register_class(AUDIT_CLASS_WRITE, write_class);
74 audit_register_class(AUDIT_CLASS_READ, read_class); 53 audit_register_class(AUDIT_CLASS_READ, read_class);
75 audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); 54 audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index d75b872ca4dc..9a260b317d8d 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -71,15 +71,6 @@ ENTRY(ia64_execve)
71 add out3=16,sp // regs 71 add out3=16,sp // regs
72 br.call.sptk.many rp=sys_execve 72 br.call.sptk.many rp=sys_execve
73.ret0: 73.ret0:
74#ifdef CONFIG_IA32_SUPPORT
75 /*
76 * Check if we're returning to ia32 mode. If so, we need to restore ia32 registers
77 * from pt_regs.
78 */
79 adds r16=PT(CR_IPSR)+16,sp
80 ;;
81 ld8 r16=[r16]
82#endif
83 cmp4.ge p6,p7=r8,r0 74 cmp4.ge p6,p7=r8,r0
84 mov ar.pfs=loc1 // restore ar.pfs 75 mov ar.pfs=loc1 // restore ar.pfs
85 sxt4 r8=r8 // return 64-bit result 76 sxt4 r8=r8 // return 64-bit result
@@ -108,12 +99,6 @@ ENTRY(ia64_execve)
108 ldf.fill f23=[sp]; ldf.fill f24=[sp]; mov f25=f0 99 ldf.fill f23=[sp]; ldf.fill f24=[sp]; mov f25=f0
109 ldf.fill f26=[sp]; ldf.fill f27=[sp]; mov f28=f0 100 ldf.fill f26=[sp]; ldf.fill f27=[sp]; mov f28=f0
110 ldf.fill f29=[sp]; ldf.fill f30=[sp]; mov f31=f0 101 ldf.fill f29=[sp]; ldf.fill f30=[sp]; mov f31=f0
111#ifdef CONFIG_IA32_SUPPORT
112 tbit.nz p6,p0=r16, IA64_PSR_IS_BIT
113 movl loc0=ia64_ret_from_ia32_execve
114 ;;
115(p6) mov rp=loc0
116#endif
117 br.ret.sptk.many rp 102 br.ret.sptk.many rp
118END(ia64_execve) 103END(ia64_execve)
119 104
@@ -848,30 +833,6 @@ __paravirt_work_processed_syscall:
848 br.cond.sptk.many rbs_switch // B 833 br.cond.sptk.many rbs_switch // B
849END(__paravirt_leave_syscall) 834END(__paravirt_leave_syscall)
850 835
851#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
852#ifdef CONFIG_IA32_SUPPORT
853GLOBAL_ENTRY(ia64_ret_from_ia32_execve)
854 PT_REGS_UNWIND_INFO(0)
855 adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8
856 adds r3=PT(R10)+16,sp // r3 = &pt_regs.r10
857 ;;
858 .mem.offset 0,0
859 st8.spill [r2]=r8 // store return value in slot for r8 and set unat bit
860 .mem.offset 8,0
861 st8.spill [r3]=r0 // clear error indication in slot for r10 and set unat bit
862#ifdef CONFIG_PARAVIRT
863 ;;
864 // don't fall through, ia64_leave_kernel may be #define'd
865 br.cond.sptk.few ia64_leave_kernel
866 ;;
867#endif /* CONFIG_PARAVIRT */
868END(ia64_ret_from_ia32_execve)
869#ifndef CONFIG_PARAVIRT
870 // fall through
871#endif
872#endif /* CONFIG_IA32_SUPPORT */
873#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
874
875GLOBAL_ENTRY(__paravirt_leave_kernel) 836GLOBAL_ENTRY(__paravirt_leave_kernel)
876 PT_REGS_UNWIND_INFO(0) 837 PT_REGS_UNWIND_INFO(0)
877 /* 838 /*
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
index ec9a5fdfa1b9..179fd122e837 100644
--- a/arch/ia64/kernel/ivt.S
+++ b/arch/ia64/kernel/ivt.S
@@ -49,7 +49,6 @@
49 49
50#include <asm/asmmacro.h> 50#include <asm/asmmacro.h>
51#include <asm/break.h> 51#include <asm/break.h>
52#include <asm/ia32.h>
53#include <asm/kregs.h> 52#include <asm/kregs.h>
54#include <asm/asm-offsets.h> 53#include <asm/asm-offsets.h>
55#include <asm/pgtable.h> 54#include <asm/pgtable.h>
@@ -1386,28 +1385,6 @@ END(ia32_exception)
1386// 0x6a00 Entry 46 (size 16 bundles) IA-32 Intercept (30,31,59,70,71) 1385// 0x6a00 Entry 46 (size 16 bundles) IA-32 Intercept (30,31,59,70,71)
1387ENTRY(ia32_intercept) 1386ENTRY(ia32_intercept)
1388 DBG_FAULT(46) 1387 DBG_FAULT(46)
1389#ifdef CONFIG_IA32_SUPPORT
1390 mov r31=pr
1391 MOV_FROM_ISR(r16)
1392 ;;
1393 extr.u r17=r16,16,8 // get ISR.code
1394 mov r18=ar.eflag
1395 MOV_FROM_IIM(r19) // old eflag value
1396 ;;
1397 cmp.ne p6,p0=2,r17
1398(p6) br.cond.spnt 1f // not a system flag fault
1399 xor r16=r18,r19
1400 ;;
1401 extr.u r17=r16,18,1 // get the eflags.ac bit
1402 ;;
1403 cmp.eq p6,p0=0,r17
1404(p6) br.cond.spnt 1f // eflags.ac bit didn't change
1405 ;;
1406 mov pr=r31,-1 // restore predicate registers
1407 RFI
1408
14091:
1410#endif // CONFIG_IA32_SUPPORT
1411 FAULT(46) 1388 FAULT(46)
1412END(ia32_intercept) 1389END(ia32_intercept)
1413 1390
@@ -1416,12 +1393,7 @@ END(ia32_intercept)
1416// 0x6b00 Entry 47 (size 16 bundles) IA-32 Interrupt (74) 1393// 0x6b00 Entry 47 (size 16 bundles) IA-32 Interrupt (74)
1417ENTRY(ia32_interrupt) 1394ENTRY(ia32_interrupt)
1418 DBG_FAULT(47) 1395 DBG_FAULT(47)
1419#ifdef CONFIG_IA32_SUPPORT
1420 mov r31=pr
1421 br.sptk.many dispatch_to_ia32_handler
1422#else
1423 FAULT(47) 1396 FAULT(47)
1424#endif
1425END(ia32_interrupt) 1397END(ia32_interrupt)
1426 1398
1427 .org ia64_ivt+0x6c00 1399 .org ia64_ivt+0x6c00
@@ -1715,89 +1687,3 @@ ENTRY(dispatch_illegal_op_fault)
1715(p6) br.call.dpnt.many b6=b6 // call returns to ia64_leave_kernel 1687(p6) br.call.dpnt.many b6=b6 // call returns to ia64_leave_kernel
1716 br.sptk.many ia64_leave_kernel 1688 br.sptk.many ia64_leave_kernel
1717END(dispatch_illegal_op_fault) 1689END(dispatch_illegal_op_fault)
1718
1719#ifdef CONFIG_IA32_SUPPORT
1720
1721 /*
1722 * There is no particular reason for this code to be here, other than that
1723 * there happens to be space here that would go unused otherwise. If this
1724 * fault ever gets "unreserved", simply moved the following code to a more
1725 * suitable spot...
1726 */
1727
1728 // IA32 interrupt entry point
1729
1730ENTRY(dispatch_to_ia32_handler)
1731 SAVE_MIN
1732 ;;
1733 MOV_FROM_ISR(r14)
1734 SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24)
1735 // guarantee that interruption collection is on
1736 ;;
1737 SSM_PSR_I(p15, p15, r3)
1738 adds r3=8,r2 // Base pointer for SAVE_REST
1739 ;;
1740 SAVE_REST
1741 ;;
1742 mov r15=0x80
1743 shr r14=r14,16 // Get interrupt number
1744 ;;
1745 cmp.ne p6,p0=r14,r15
1746(p6) br.call.dpnt.many b6=non_ia32_syscall
1747
1748 adds r14=IA64_PT_REGS_R8_OFFSET + 16,sp // 16 byte hole per SW conventions
1749 adds r15=IA64_PT_REGS_R1_OFFSET + 16,sp
1750 ;;
1751 cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
1752 ld8 r8=[r14] // get r8
1753 ;;
1754 st8 [r15]=r8 // save original EAX in r1 (IA32 procs don't use the GP)
1755 ;;
1756 alloc r15=ar.pfs,0,0,6,0 // must first in an insn group
1757 ;;
1758 ld4 r8=[r14],8 // r8 == eax (syscall number)
1759 mov r15=IA32_NR_syscalls
1760 ;;
1761 cmp.ltu.unc p6,p7=r8,r15
1762 ld4 out1=[r14],8 // r9 == ecx
1763 ;;
1764 ld4 out2=[r14],8 // r10 == edx
1765 ;;
1766 ld4 out0=[r14] // r11 == ebx
1767 adds r14=(IA64_PT_REGS_R13_OFFSET) + 16,sp
1768 ;;
1769 ld4 out5=[r14],PT(R14)-PT(R13) // r13 == ebp
1770 ;;
1771 ld4 out3=[r14],PT(R15)-PT(R14) // r14 == esi
1772 adds r2=TI_FLAGS+IA64_TASK_SIZE,r13
1773 ;;
1774 ld4 out4=[r14] // r15 == edi
1775 movl r16=ia32_syscall_table
1776 ;;
1777(p6) shladd r16=r8,3,r16 // force ni_syscall if not valid syscall number
1778 ld4 r2=[r2] // r2 = current_thread_info()->flags
1779 ;;
1780 ld8 r16=[r16]
1781 and r2=_TIF_SYSCALL_TRACEAUDIT,r2 // mask trace or audit
1782 ;;
1783 mov b6=r16
1784 movl r15=ia32_ret_from_syscall
1785 cmp.eq p8,p0=r2,r0
1786 ;;
1787 mov rp=r15
1788(p8) br.call.sptk.many b6=b6
1789 br.cond.sptk ia32_trace_syscall
1790
1791non_ia32_syscall:
1792 alloc r15=ar.pfs,0,0,2,0
1793 mov out0=r14 // interrupt #
1794 add out1=16,sp // pointer to pt_regs
1795 ;; // avoid WAW on CFM
1796 br.call.sptk.many rp=ia32_bad_interrupt
1797.ret1: movl r15=ia64_leave_kernel
1798 ;;
1799 mov rp=r15
1800 br.ret.sptk.many rp
1801END(dispatch_to_ia32_handler)
1802
1803#endif /* CONFIG_IA32_SUPPORT */
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 9bcec9945c12..883ecc9cfef5 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -33,7 +33,6 @@
33#include <asm/cpu.h> 33#include <asm/cpu.h>
34#include <asm/delay.h> 34#include <asm/delay.h>
35#include <asm/elf.h> 35#include <asm/elf.h>
36#include <asm/ia32.h>
37#include <asm/irq.h> 36#include <asm/irq.h>
38#include <asm/kexec.h> 37#include <asm/kexec.h>
39#include <asm/pgalloc.h> 38#include <asm/pgalloc.h>
@@ -358,11 +357,6 @@ ia64_save_extra (struct task_struct *task)
358 if (info & PFM_CPUINFO_SYST_WIDE) 357 if (info & PFM_CPUINFO_SYST_WIDE)
359 pfm_syst_wide_update_task(task, info, 0); 358 pfm_syst_wide_update_task(task, info, 0);
360#endif 359#endif
361
362#ifdef CONFIG_IA32_SUPPORT
363 if (IS_IA32_PROCESS(task_pt_regs(task)))
364 ia32_save_state(task);
365#endif
366} 360}
367 361
368void 362void
@@ -383,11 +377,6 @@ ia64_load_extra (struct task_struct *task)
383 if (info & PFM_CPUINFO_SYST_WIDE) 377 if (info & PFM_CPUINFO_SYST_WIDE)
384 pfm_syst_wide_update_task(task, info, 1); 378 pfm_syst_wide_update_task(task, info, 1);
385#endif 379#endif
386
387#ifdef CONFIG_IA32_SUPPORT
388 if (IS_IA32_PROCESS(task_pt_regs(task)))
389 ia32_load_state(task);
390#endif
391} 380}
392 381
393/* 382/*
@@ -426,7 +415,7 @@ copy_thread(unsigned long clone_flags,
426 unsigned long user_stack_base, unsigned long user_stack_size, 415 unsigned long user_stack_base, unsigned long user_stack_size,
427 struct task_struct *p, struct pt_regs *regs) 416 struct task_struct *p, struct pt_regs *regs)
428{ 417{
429 extern char ia64_ret_from_clone, ia32_ret_from_clone; 418 extern char ia64_ret_from_clone;
430 struct switch_stack *child_stack, *stack; 419 struct switch_stack *child_stack, *stack;
431 unsigned long rbs, child_rbs, rbs_size; 420 unsigned long rbs, child_rbs, rbs_size;
432 struct pt_regs *child_ptregs; 421 struct pt_regs *child_ptregs;
@@ -457,7 +446,7 @@ copy_thread(unsigned long clone_flags,
457 memcpy((void *) child_rbs, (void *) rbs, rbs_size); 446 memcpy((void *) child_rbs, (void *) rbs, rbs_size);
458 447
459 if (likely(user_mode(child_ptregs))) { 448 if (likely(user_mode(child_ptregs))) {
460 if ((clone_flags & CLONE_SETTLS) && !IS_IA32_PROCESS(regs)) 449 if (clone_flags & CLONE_SETTLS)
461 child_ptregs->r13 = regs->r16; /* see sys_clone2() in entry.S */ 450 child_ptregs->r13 = regs->r16; /* see sys_clone2() in entry.S */
462 if (user_stack_base) { 451 if (user_stack_base) {
463 child_ptregs->r12 = user_stack_base + user_stack_size - 16; 452 child_ptregs->r12 = user_stack_base + user_stack_size - 16;
@@ -477,10 +466,7 @@ copy_thread(unsigned long clone_flags,
477 child_ptregs->r13 = (unsigned long) p; /* set `current' pointer */ 466 child_ptregs->r13 = (unsigned long) p; /* set `current' pointer */
478 } 467 }
479 child_stack->ar_bspstore = child_rbs + rbs_size; 468 child_stack->ar_bspstore = child_rbs + rbs_size;
480 if (IS_IA32_PROCESS(regs)) 469 child_stack->b0 = (unsigned long) &ia64_ret_from_clone;
481 child_stack->b0 = (unsigned long) &ia32_ret_from_clone;
482 else
483 child_stack->b0 = (unsigned long) &ia64_ret_from_clone;
484 470
485 /* copy parts of thread_struct: */ 471 /* copy parts of thread_struct: */
486 p->thread.ksp = (unsigned long) child_stack - 16; 472 p->thread.ksp = (unsigned long) child_stack - 16;
@@ -515,22 +501,6 @@ copy_thread(unsigned long clone_flags,
515 p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR) 501 p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR)
516 | THREAD_FLAGS_TO_SET); 502 | THREAD_FLAGS_TO_SET);
517 ia64_drop_fpu(p); /* don't pick up stale state from a CPU's fph */ 503 ia64_drop_fpu(p); /* don't pick up stale state from a CPU's fph */
518#ifdef CONFIG_IA32_SUPPORT
519 /*
520 * If we're cloning an IA32 task then save the IA32 extra
521 * state from the current task to the new task
522 */
523 if (IS_IA32_PROCESS(task_pt_regs(current))) {
524 ia32_save_state(p);
525 if (clone_flags & CLONE_SETTLS)
526 retval = ia32_clone_tls(p, child_ptregs);
527
528 /* Copy partially mapped page list */
529 if (!retval)
530 retval = ia32_copy_ia64_partial_page_list(p,
531 clone_flags);
532 }
533#endif
534 504
535#ifdef CONFIG_PERFMON 505#ifdef CONFIG_PERFMON
536 if (current->thread.pfm_context) 506 if (current->thread.pfm_context)
@@ -704,15 +674,6 @@ EXPORT_SYMBOL(kernel_thread);
704int 674int
705kernel_thread_helper (int (*fn)(void *), void *arg) 675kernel_thread_helper (int (*fn)(void *), void *arg)
706{ 676{
707#ifdef CONFIG_IA32_SUPPORT
708 if (IS_IA32_PROCESS(task_pt_regs(current))) {
709 /* A kernel thread is always a 64-bit process. */
710 current->thread.map_base = DEFAULT_MAP_BASE;
711 current->thread.task_size = DEFAULT_TASK_SIZE;
712 ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob);
713 ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1);
714 }
715#endif
716 return (*fn)(arg); 677 return (*fn)(arg);
717} 678}
718 679
@@ -725,14 +686,6 @@ flush_thread (void)
725 /* drop floating-point and debug-register state if it exists: */ 686 /* drop floating-point and debug-register state if it exists: */
726 current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID); 687 current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID);
727 ia64_drop_fpu(current); 688 ia64_drop_fpu(current);
728#ifdef CONFIG_IA32_SUPPORT
729 if (IS_IA32_PROCESS(task_pt_regs(current))) {
730 ia32_drop_ia64_partial_page_list(current);
731 current->thread.task_size = IA32_PAGE_OFFSET;
732 set_fs(USER_DS);
733 memset(current->thread.tls_array, 0, sizeof(current->thread.tls_array));
734 }
735#endif
736} 689}
737 690
738/* 691/*
@@ -753,8 +706,6 @@ exit_thread (void)
753 if (current->thread.flags & IA64_THREAD_DBG_VALID) 706 if (current->thread.flags & IA64_THREAD_DBG_VALID)
754 pfm_release_debug_registers(current); 707 pfm_release_debug_registers(current);
755#endif 708#endif
756 if (IS_IA32_PROCESS(task_pt_regs(current)))
757 ia32_drop_ia64_partial_page_list(current);
758} 709}
759 710
760unsigned long 711unsigned long
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 9daa87fdb018..b61afbbe076f 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1250,13 +1250,8 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
1250 long syscall; 1250 long syscall;
1251 int arch; 1251 int arch;
1252 1252
1253 if (IS_IA32_PROCESS(&regs)) { 1253 syscall = regs.r15;
1254 syscall = regs.r1; 1254 arch = AUDIT_ARCH_IA64;
1255 arch = AUDIT_ARCH_I386;
1256 } else {
1257 syscall = regs.r15;
1258 arch = AUDIT_ARCH_IA64;
1259 }
1260 1255
1261 audit_syscall_entry(arch, syscall, arg0, arg1, arg2, arg3); 1256 audit_syscall_entry(arch, syscall, arg0, arg1, arg2, arg3);
1262 } 1257 }
@@ -2172,11 +2167,6 @@ static const struct user_regset_view user_ia64_view = {
2172 2167
2173const struct user_regset_view *task_user_regset_view(struct task_struct *tsk) 2168const struct user_regset_view *task_user_regset_view(struct task_struct *tsk)
2174{ 2169{
2175#ifdef CONFIG_IA32_SUPPORT
2176 extern const struct user_regset_view user_ia32_view;
2177 if (IS_IA32_PROCESS(task_pt_regs(tsk)))
2178 return &user_ia32_view;
2179#endif
2180 return &user_ia64_view; 2170 return &user_ia64_view;
2181} 2171}
2182 2172
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index a1ea87919777..41ae6a596b50 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -46,7 +46,6 @@
46#include <linux/kexec.h> 46#include <linux/kexec.h>
47#include <linux/crash_dump.h> 47#include <linux/crash_dump.h>
48 48
49#include <asm/ia32.h>
50#include <asm/machvec.h> 49#include <asm/machvec.h>
51#include <asm/mca.h> 50#include <asm/mca.h>
52#include <asm/meminit.h> 51#include <asm/meminit.h>
@@ -1016,10 +1015,6 @@ cpu_init (void)
1016 ia64_mmu_init(ia64_imva(cpu_data)); 1015 ia64_mmu_init(ia64_imva(cpu_data));
1017 ia64_mca_cpu_init(ia64_imva(cpu_data)); 1016 ia64_mca_cpu_init(ia64_imva(cpu_data));
1018 1017
1019#ifdef CONFIG_IA32_SUPPORT
1020 ia32_cpu_init();
1021#endif
1022
1023 /* Clear ITC to eliminate sched_clock() overflows in human time. */ 1018 /* Clear ITC to eliminate sched_clock() overflows in human time. */
1024 ia64_set_itc(0); 1019 ia64_set_itc(0);
1025 1020
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index e1821ca4c7df..7bdafc8788bd 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -21,7 +21,6 @@
21#include <linux/unistd.h> 21#include <linux/unistd.h>
22#include <linux/wait.h> 22#include <linux/wait.h>
23 23
24#include <asm/ia32.h>
25#include <asm/intrinsics.h> 24#include <asm/intrinsics.h>
26#include <asm/uaccess.h> 25#include <asm/uaccess.h>
27#include <asm/rse.h> 26#include <asm/rse.h>
@@ -425,14 +424,8 @@ static long
425handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, 424handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset,
426 struct sigscratch *scr) 425 struct sigscratch *scr)
427{ 426{
428 if (IS_IA32_PROCESS(&scr->pt)) { 427 if (!setup_frame(sig, ka, info, oldset, scr))
429 /* send signal to IA-32 process */ 428 return 0;
430 if (!ia32_setup_frame1(sig, ka, info, oldset, &scr->pt))
431 return 0;
432 } else
433 /* send signal to IA-64 process */
434 if (!setup_frame(sig, ka, info, oldset, scr))
435 return 0;
436 429
437 spin_lock_irq(&current->sighand->siglock); 430 spin_lock_irq(&current->sighand->siglock);
438 sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask); 431 sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
@@ -462,7 +455,6 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
462 siginfo_t info; 455 siginfo_t info;
463 long restart = in_syscall; 456 long restart = in_syscall;
464 long errno = scr->pt.r8; 457 long errno = scr->pt.r8;
465# define ERR_CODE(c) (IS_IA32_PROCESS(&scr->pt) ? -(c) : (c))
466 458
467 /* 459 /*
468 * In the ia64_leave_kernel code path, we want the common case to go fast, which 460 * In the ia64_leave_kernel code path, we want the common case to go fast, which
@@ -490,14 +482,7 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
490 * inferior call), thus it's important to check for restarting _after_ 482 * inferior call), thus it's important to check for restarting _after_
491 * get_signal_to_deliver(). 483 * get_signal_to_deliver().
492 */ 484 */
493 if (IS_IA32_PROCESS(&scr->pt)) { 485 if ((long) scr->pt.r10 != -1)
494 if (in_syscall) {
495 if (errno >= 0)
496 restart = 0;
497 else
498 errno = -errno;
499 }
500 } else if ((long) scr->pt.r10 != -1)
501 /* 486 /*
502 * A system calls has to be restarted only if one of the error codes 487 * A system calls has to be restarted only if one of the error codes
503 * ERESTARTNOHAND, ERESTARTSYS, or ERESTARTNOINTR is returned. If r10 488 * ERESTARTNOHAND, ERESTARTSYS, or ERESTARTNOINTR is returned. If r10
@@ -513,22 +498,18 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
513 switch (errno) { 498 switch (errno) {
514 case ERESTART_RESTARTBLOCK: 499 case ERESTART_RESTARTBLOCK:
515 case ERESTARTNOHAND: 500 case ERESTARTNOHAND:
516 scr->pt.r8 = ERR_CODE(EINTR); 501 scr->pt.r8 = EINTR;
517 /* note: scr->pt.r10 is already -1 */ 502 /* note: scr->pt.r10 is already -1 */
518 break; 503 break;
519 504
520 case ERESTARTSYS: 505 case ERESTARTSYS:
521 if ((ka.sa.sa_flags & SA_RESTART) == 0) { 506 if ((ka.sa.sa_flags & SA_RESTART) == 0) {
522 scr->pt.r8 = ERR_CODE(EINTR); 507 scr->pt.r8 = EINTR;
523 /* note: scr->pt.r10 is already -1 */ 508 /* note: scr->pt.r10 is already -1 */
524 break; 509 break;
525 } 510 }
526 case ERESTARTNOINTR: 511 case ERESTARTNOINTR:
527 if (IS_IA32_PROCESS(&scr->pt)) { 512 ia64_decrement_ip(&scr->pt);
528 scr->pt.r8 = scr->pt.r1;
529 scr->pt.cr_iip -= 2;
530 } else
531 ia64_decrement_ip(&scr->pt);
532 restart = 0; /* don't restart twice if handle_signal() fails... */ 513 restart = 0; /* don't restart twice if handle_signal() fails... */
533 } 514 }
534 } 515 }
@@ -555,21 +536,14 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
555 if (errno == ERESTARTNOHAND || errno == ERESTARTSYS || errno == ERESTARTNOINTR 536 if (errno == ERESTARTNOHAND || errno == ERESTARTSYS || errno == ERESTARTNOINTR
556 || errno == ERESTART_RESTARTBLOCK) 537 || errno == ERESTART_RESTARTBLOCK)
557 { 538 {
558 if (IS_IA32_PROCESS(&scr->pt)) { 539 /*
559 scr->pt.r8 = scr->pt.r1; 540 * Note: the syscall number is in r15 which is saved in
560 scr->pt.cr_iip -= 2; 541 * pt_regs so all we need to do here is adjust ip so that
561 if (errno == ERESTART_RESTARTBLOCK) 542 * the "break" instruction gets re-executed.
562 scr->pt.r8 = 0; /* x86 version of __NR_restart_syscall */ 543 */
563 } else { 544 ia64_decrement_ip(&scr->pt);
564 /* 545 if (errno == ERESTART_RESTARTBLOCK)
565 * Note: the syscall number is in r15 which is saved in 546 scr->pt.r15 = __NR_restart_syscall;
566 * pt_regs so all we need to do here is adjust ip so that
567 * the "break" instruction gets re-executed.
568 */
569 ia64_decrement_ip(&scr->pt);
570 if (errno == ERESTART_RESTARTBLOCK)
571 scr->pt.r15 = __NR_restart_syscall;
572 }
573 } 547 }
574 } 548 }
575 549
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index de100aa7ff03..e5230b2ff2c5 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -44,7 +44,6 @@
44#include <asm/cache.h> 44#include <asm/cache.h>
45#include <asm/current.h> 45#include <asm/current.h>
46#include <asm/delay.h> 46#include <asm/delay.h>
47#include <asm/ia32.h>
48#include <asm/io.h> 47#include <asm/io.h>
49#include <asm/irq.h> 48#include <asm/irq.h>
50#include <asm/machvec.h> 49#include <asm/machvec.h>
@@ -443,10 +442,6 @@ smp_callin (void)
443 calibrate_delay(); 442 calibrate_delay();
444 local_cpu_data->loops_per_jiffy = loops_per_jiffy; 443 local_cpu_data->loops_per_jiffy = loops_per_jiffy;
445 444
446#ifdef CONFIG_IA32_SUPPORT
447 ia32_gdt_init();
448#endif
449
450 /* 445 /*
451 * Allow the master to continue. 446 * Allow the master to continue.
452 */ 447 */
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index f0cda765e681..fd80e70018a9 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -19,7 +19,6 @@
19#include <linux/kdebug.h> 19#include <linux/kdebug.h>
20 20
21#include <asm/fpswa.h> 21#include <asm/fpswa.h>
22#include <asm/ia32.h>
23#include <asm/intrinsics.h> 22#include <asm/intrinsics.h>
24#include <asm/processor.h> 23#include <asm/processor.h>
25#include <asm/uaccess.h> 24#include <asm/uaccess.h>
@@ -626,10 +625,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
626 break; 625 break;
627 626
628 case 45: 627 case 45:
629#ifdef CONFIG_IA32_SUPPORT
630 if (ia32_exception(&regs, isr) == 0)
631 return;
632#endif
633 printk(KERN_ERR "Unexpected IA-32 exception (Trap 45)\n"); 628 printk(KERN_ERR "Unexpected IA-32 exception (Trap 45)\n");
634 printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx\n", 629 printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx\n",
635 iip, ifa, isr); 630 iip, ifa, isr);
@@ -637,10 +632,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
637 break; 632 break;
638 633
639 case 46: 634 case 46:
640#ifdef CONFIG_IA32_SUPPORT
641 if (ia32_intercept(&regs, isr) == 0)
642 return;
643#endif
644 printk(KERN_ERR "Unexpected IA-32 intercept trap (Trap 46)\n"); 635 printk(KERN_ERR "Unexpected IA-32 intercept trap (Trap 46)\n");
645 printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx, iim - 0x%lx\n", 636 printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx, iim - 0x%lx\n",
646 iip, ifa, isr, iim); 637 iip, ifa, isr, iim);