Pull rmia32 into release branch

arch/ia64/Kconfig

@@ -499,23 +499,6 @@ config ARCH_PROC_KCORE_TEXT
 	def_bool y
 	depends on PROC_KCORE
 
-config IA32_SUPPORT
-	bool "Support for Linux/x86 binaries"
-	help
-	  IA-64 processors can execute IA-32 (X86) instructions.  By
-	  saying Y here, the kernel will include IA-32 system call
-	  emulation support which makes it possible to transparently
-	  run IA-32 Linux binaries on an IA-64 Linux system.
-	  If in doubt, say Y.
-
-config COMPAT
-	bool
-	depends on IA32_SUPPORT
-	default y
-
-config COMPAT_FOR_U64_ALIGNMENT
-	def_bool COMPAT
-
 config IA64_MCA_RECOVERY
 	tristate "MCA recovery from errors other than TLB."
 

arch/ia64/Makefile

@@ -46,7 +46,6 @@ head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o
 
 libs-y				+= arch/ia64/lib/
 core-y				+= arch/ia64/kernel/ arch/ia64/mm/
-core-$(CONFIG_IA32_SUPPORT)	+= arch/ia64/ia32/
 core-$(CONFIG_IA64_DIG) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_DIG_VTD) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_GENERIC) 	+= arch/ia64/dig/

arch/ia64/configs/bigsur_defconfig

@@ -131,8 +131,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 # CONFIG_VIRTUAL_MEM_MAP is not set
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 # CONFIG_IA64_MCA_RECOVERY is not set
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/generic_defconfig

@@ -205,8 +205,6 @@ CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
 CONFIG_HAVE_ARCH_NODEDATA_EXTENSION=y
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y

arch/ia64/configs/gensparse_defconfig

@@ -139,8 +139,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
 CONFIG_NUMA=y
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/sim_defconfig

@@ -130,8 +130,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 # CONFIG_VIRTUAL_MEM_MAP is not set
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 # CONFIG_IA64_MCA_RECOVERY is not set
 # CONFIG_PERFMON is not set
 CONFIG_IA64_PALINFO=m

arch/ia64/configs/tiger_defconfig

@@ -154,7 +154,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
-# CONFIG_IA32_SUPPORT is not set
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/xen_domu_defconfig

@@ -200,8 +200,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
-# CONFIG_IA32_SUPPORT is not set
-# CONFIG_COMPAT_FOR_U64_ALIGNMENT is not set
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/zx1_defconfig

@@ -150,8 +150,6 @@ CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/ia32/Makefile

-#
-# Makefile for the ia32 kernel emulation subsystem.
-#
-
-obj-y := ia32_entry.o sys_ia32.o ia32_signal.o \
-	 ia32_support.o ia32_traps.o binfmt_elf32.o ia32_ldt.o
-obj-$(CONFIG_AUDIT) += audit.o
-
-# Don't let GCC uses f16-f31 so that save_ia32_fpstate_live() and
-# restore_ia32_fpstate_live() can be sure the live register contain user-level state.
-CFLAGS_ia32_signal.o += -mfixed-range=f16-f31

arch/ia64/ia32/audit.c

-#include "../../x86/include/asm/unistd_32.h"
-
-unsigned ia32_dir_class[] = {
-#include <asm-generic/audit_dir_write.h>
-~0U
-};
-
-unsigned ia32_chattr_class[] = {
-#include <asm-generic/audit_change_attr.h>
-~0U
-};
-
-unsigned ia32_write_class[] = {
-#include <asm-generic/audit_write.h>
-~0U
-};
-
-unsigned ia32_read_class[] = {
-#include <asm-generic/audit_read.h>
-~0U
-};
-
-unsigned ia32_signal_class[] = {
-#include <asm-generic/audit_signal.h>
-~0U
-};
-
-int ia32_classify_syscall(unsigned syscall)
-{
-	switch(syscall) {
-	case __NR_open:
-		return 2;
-	case __NR_openat:
-		return 3;
-	case __NR_socketcall:
-		return 4;
-	case __NR_execve:
-		return 5;
-	default:
-		return 1;
-	}
-}

arch/ia64/ia32/binfmt_elf32.c

-/*
- * IA-32 ELF support.
- *
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 2001 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00	A. Mallick	initialize csd/ssd/tssd/cflg for ia32_load_state
- * 04/13/01	D. Mosberger	dropped saving tssd in ar.k1---it's not needed
- * 09/14/01	D. Mosberger	fixed memory management for gdt/tss page
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/security.h>
-
-#include <asm/param.h>
-#include <asm/signal.h>
-
-#include "ia32priv.h"
-#include "elfcore32.h"
-
-/* Override some function names */
-#undef start_thread
-#define start_thread			ia32_start_thread
-#define elf_format			elf32_format
-#define init_elf_binfmt			init_elf32_binfmt
-#define exit_elf_binfmt			exit_elf32_binfmt
-
-#undef CLOCKS_PER_SEC
-#define CLOCKS_PER_SEC	IA32_CLOCKS_PER_SEC
-
-extern void ia64_elf32_init (struct pt_regs *regs);
-
-static void elf32_set_personality (void);
-
-static unsigned long __attribute ((unused))
-randomize_stack_top(unsigned long stack_top);
-
-#define setup_arg_pages(bprm,tos,exec)		ia32_setup_arg_pages(bprm,exec)
-#define elf_map				elf32_map
-
-#undef SET_PERSONALITY
-#define SET_PERSONALITY(ex)	elf32_set_personality()
-
-#define elf_read_implies_exec(ex, have_pt_gnu_stack)	(!(have_pt_gnu_stack))
-
-/* Ugly but avoids duplication */
-#include "../../../fs/binfmt_elf.c"
-
-extern struct page *ia32_shared_page[];
-extern unsigned long *ia32_gdt;
-extern struct page *ia32_gate_page;
-
-int
-ia32_install_shared_page (struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	vmf->page = ia32_shared_page[smp_processor_id()];
-	get_page(vmf->page);
-	return 0;
-}
-
-int
-ia32_install_gate_page (struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	vmf->page = ia32_gate_page;
-	get_page(vmf->page);
-	return 0;
-}
-
-
-static const struct vm_operations_struct ia32_shared_page_vm_ops = {
-	.fault = ia32_install_shared_page
-};
-
-static const struct vm_operations_struct ia32_gate_page_vm_ops = {
-	.fault = ia32_install_gate_page
-};
-
-void
-ia64_elf32_init (struct pt_regs *regs)
-{
-	struct vm_area_struct *vma;
-
-	/*
-	 * Map GDT below 4GB, where the processor can find it.  We need to map
-	 * it with privilege level 3 because the IVE uses non-privileged accesses to these
-	 * tables.  IA-32 segmentation is used to protect against IA-32 accesses to them.
-	 */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma) {
-		vma->vm_mm = current->mm;
-		vma->vm_start = IA32_GDT_OFFSET;
-		vma->vm_end = vma->vm_start + PAGE_SIZE;
-		vma->vm_page_prot = PAGE_SHARED;
-		vma->vm_flags = VM_READ|VM_MAYREAD|VM_RESERVED;
-		vma->vm_ops = &ia32_shared_page_vm_ops;
-		down_write(&current->mm->mmap_sem);
-		{
-			if (insert_vm_struct(current->mm, vma)) {
-				kmem_cache_free(vm_area_cachep, vma);
-				up_write(&current->mm->mmap_sem);
-				BUG();
-			}
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	/*
-	 * When user stack is not executable, push sigreturn code to stack makes
-	 * segmentation fault raised when returning to kernel. So now sigreturn
-	 * code is locked in specific gate page, which is pointed by pretcode
-	 * when setup_frame_ia32
-	 */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma) {
-		vma->vm_mm = current->mm;
-		vma->vm_start = IA32_GATE_OFFSET;
-		vma->vm_end = vma->vm_start + PAGE_SIZE;
-		vma->vm_page_prot = PAGE_COPY_EXEC;
-		vma->vm_flags = VM_READ | VM_MAYREAD | VM_EXEC
-				| VM_MAYEXEC | VM_RESERVED;
-		vma->vm_ops = &ia32_gate_page_vm_ops;
-		down_write(&current->mm->mmap_sem);
-		{
-			if (insert_vm_struct(current->mm, vma)) {
-				kmem_cache_free(vm_area_cachep, vma);
-				up_write(&current->mm->mmap_sem);
-				BUG();
-			}
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	/*
-	 * Install LDT as anonymous memory.  This gives us all-zero segment descriptors
-	 * until a task modifies them via modify_ldt().
-	 */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma) {
-		vma->vm_mm = current->mm;
-		vma->vm_start = IA32_LDT_OFFSET;
-		vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
-		vma->vm_page_prot = PAGE_SHARED;
-		vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE;
-		down_write(&current->mm->mmap_sem);
-		{
-			if (insert_vm_struct(current->mm, vma)) {
-				kmem_cache_free(vm_area_cachep, vma);
-				up_write(&current->mm->mmap_sem);
-				BUG();
-			}
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	ia64_psr(regs)->ac = 0;		/* turn off alignment checking */
-	regs->loadrs = 0;
-	/*
-	 *  According to the ABI %edx points to an `atexit' handler.  Since we don't have
-	 *  one we'll set it to 0 and initialize all the other registers just to make
-	 *  things more deterministic, ala the i386 implementation.
-	 */
-	regs->r8 = 0;	/* %eax */
-	regs->r11 = 0;	/* %ebx */
-	regs->r9 = 0;	/* %ecx */
-	regs->r10 = 0;	/* %edx */
-	regs->r13 = 0;	/* %ebp */
-	regs->r14 = 0;	/* %esi */
-	regs->r15 = 0;	/* %edi */
-
-	current->thread.eflag = IA32_EFLAG;
-	current->thread.fsr = IA32_FSR_DEFAULT;
-	current->thread.fcr = IA32_FCR_DEFAULT;
-	current->thread.fir = 0;
-	current->thread.fdr = 0;
-
-	/*
-	 * Setup GDTD.  Note: GDTD is the descrambled version of the pseudo-descriptor
-	 * format defined by Figure 3-11 "Pseudo-Descriptor Format" in the IA-32
-	 * architecture manual. Also note that the only fields that are not ignored are
-	 * `base', `limit', 'G', `P' (must be 1) and `S' (must be 0).
-	 */
-	regs->r31 = IA32_SEG_UNSCRAMBLE(IA32_SEG_DESCRIPTOR(IA32_GDT_OFFSET, IA32_PAGE_SIZE - 1,
-							    0, 0, 0, 1, 0, 0, 0));
-	/* Setup the segment selectors */
-	regs->r16 = (__USER_DS << 16) | __USER_DS; /* ES == DS, GS, FS are zero */
-	regs->r17 = (__USER_DS << 16) | __USER_CS; /* SS, CS; ia32_load_state() sets TSS and LDT */
-
-	ia32_load_segment_descriptors(current);
-	ia32_load_state(current);
-}
-
-/*
- * Undo the override of setup_arg_pages() without this ia32_setup_arg_pages()
- * will suffer infinite self recursion.
- */
-#undef setup_arg_pages
-
-int
-ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
-{
-	int ret;
-
-	ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack);
-	if (!ret) {
-		/*
-		 * Can't do it in ia64_elf32_init(). Needs to be done before
-		 * calls to elf32_map()
-		 */
-		current->thread.ppl = ia32_init_pp_list();
-	}
-
-	return ret;
-}
-
-static void
-elf32_set_personality (void)
-{
-	set_personality(PER_LINUX32);
-	current->thread.map_base  = IA32_PAGE_OFFSET/3;
-}
-
-static unsigned long
-elf32_map(struct file *filep, unsigned long addr, struct elf_phdr *eppnt,
-		int prot, int type, unsigned long unused)
-{
-	unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK;
-
-	return ia32_do_mmap(filep, (addr & IA32_PAGE_MASK), eppnt->p_filesz + pgoff, prot, type,
-			    eppnt->p_offset - pgoff);
-}
-
-#define cpu_uses_ia32el()	(local_cpu_data->family > 0x1f)
-
-static int __init check_elf32_binfmt(void)
-{
-	if (cpu_uses_ia32el()) {
-		printk("Please use IA-32 EL for executing IA-32 binaries\n");
-		unregister_binfmt(&elf_format);
-	}
-	return 0;
-}
-
-module_init(check_elf32_binfmt)

arch/ia64/ia32/elfcore32.h

-/*
- * IA-32 ELF core dump support.
- *
- * Copyright (C) 2003 Arun Sharma <arun.sharma@intel.com>
- *
- * Derived from the x86_64 version
- */
-#ifndef _ELFCORE32_H_
-#define _ELFCORE32_H_
-
-#include <asm/intrinsics.h>
-#include <asm/uaccess.h>
-
-/* Override elfcore.h */
-#define _LINUX_ELFCORE_H 1
-typedef unsigned int elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct ia32_user_i387_struct elf_fpregset_t;
-typedef struct ia32_user_fxsr_struct elf_fpxregset_t;
-
-struct elf_siginfo
-{
-	int	si_signo;			/* signal number */
-	int	si_code;			/* extra code */
-	int	si_errno;			/* errno */
-};
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-/*
- * Hacks are here since types between compat_timeval (= pair of s32) and
- * ia64-native timeval (= pair of s64) are not compatible, at least a file
- * arch/ia64/ia32/../../../fs/binfmt_elf.c will get warnings from compiler on
- * use of cputime_to_timeval(), which usually an alias of jiffies_to_timeval().
- */
-#define cputime_to_timeval(a,b) \
-	do { (b)->tv_usec = 0; (b)->tv_sec = (a)/NSEC_PER_SEC; } while(0)
-#else
-#define jiffies_to_timeval(a,b) \
-	do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; } while(0)
-#endif
-
-struct elf_prstatus
-{
-	struct elf_siginfo pr_info;	/* Info associated with signal */
-	short	pr_cursig;		/* Current signal */
-	unsigned int pr_sigpend;	/* Set of pending signals */
-	unsigned int pr_sighold;	/* Set of held signals */
-	pid_t	pr_pid;
-	pid_t	pr_ppid;
-	pid_t	pr_pgrp;
-	pid_t	pr_sid;
-	struct compat_timeval pr_utime;	/* User time */
-	struct compat_timeval pr_stime;	/* System time */
-	struct compat_timeval pr_cutime;	/* Cumulative user time */
-	struct compat_timeval pr_cstime;	/* Cumulative system time */
-	elf_gregset_t pr_reg;	/* GP registers */
-	int pr_fpvalid;		/* True if math co-processor being used.  */
-};
-
-#define ELF_PRARGSZ	(80)	/* Number of chars for args */
-
-struct elf_prpsinfo
-{
-	char	pr_state;	/* numeric process state */
-	char	pr_sname;	/* char for pr_state */
-	char	pr_zomb;	/* zombie */
-	char	pr_nice;	/* nice val */
-	unsigned int pr_flag;	/* flags */
-	__u16	pr_uid;
-	__u16	pr_gid;
-	pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
-	/* Lots missing */
-	char	pr_fname[16];	/* filename of executable */
-	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
-};
-
-#define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
-	pr_reg[0] = regs->r11;				\
-	pr_reg[1] = regs->r9;				\
-	pr_reg[2] = regs->r10;				\
-	pr_reg[3] = regs->r14;				\
-	pr_reg[4] = regs->r15;				\
-	pr_reg[5] = regs->r13;				\
-	pr_reg[6] = regs->r8;				\
-	pr_reg[7] = regs->r16 & 0xffff;			\
-	pr_reg[8] = (regs->r16 >> 16) & 0xffff;		\
-	pr_reg[9] = (regs->r16 >> 32) & 0xffff;		\
-	pr_reg[10] = (regs->r16 >> 48) & 0xffff;	\
-	pr_reg[11] = regs->r1; 				\
-	pr_reg[12] = regs->cr_iip;			\
-	pr_reg[13] = regs->r17 & 0xffff;		\
-	pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG);	\
-	pr_reg[15] = regs->r12;				\
-	pr_reg[16] = (regs->r17 >> 16) & 0xffff;
-
-static inline void elf_core_copy_regs(elf_gregset_t *elfregs,
-				      struct pt_regs *regs)
-{
-	ELF_CORE_COPY_REGS((*elfregs), regs)
-}
-
-static inline int elf_core_copy_task_regs(struct task_struct *t,
-					  elf_gregset_t* elfregs)
-{
-	ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t));
-	return 1;
-}
-
-static inline int
-elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
-{
-	struct ia32_user_i387_struct *fpstate = (void*)fpu;
-	mm_segment_t old_fs;
-
-	if (!tsk_used_math(tsk))
-		return 0;
-	
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate);
-	set_fs(old_fs);
-
-	return 1;
-}
-
-#define ELF_CORE_COPY_XFPREGS 1
-#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
-static inline int
-elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
-{
-	struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu;
-	mm_segment_t old_fs;
-
-	if (!tsk_used_math(tsk))
-		return 0;
-
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate);
-	set_fs(old_fs);
-
-	return 1;
-}
-
-#endif /* _ELFCORE32_H_ */

arch/ia64/ia32/ia32_ldt.c

-/*
- * Copyright (C) 2001, 2004 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * Adapted from arch/i386/kernel/ldt.c
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/vmalloc.h>
-
-#include <asm/uaccess.h>
-
-#include "ia32priv.h"
-
-/*
- * read_ldt() is not really atomic - this is not a problem since synchronization of reads
- * and writes done to the LDT has to be assured by user-space anyway. Writes are atomic,
- * to protect the security checks done on new descriptors.
- */
-static int
-read_ldt (void __user *ptr, unsigned long bytecount)
-{
-	unsigned long bytes_left, n;
-	char __user *src, *dst;
-	char buf[256];	/* temporary buffer (don't overflow kernel stack!) */
-
-	if (bytecount > IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE)
-		bytecount = IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE;
-
-	bytes_left = bytecount;
-
-	src = (void __user *) IA32_LDT_OFFSET;
-	dst = ptr;
-
-	while (bytes_left) {
-		n = sizeof(buf);
-		if (n > bytes_left)
-			n = bytes_left;
-
-		/*
-		 * We know we're reading valid memory, but we still must guard against
-		 * running out of memory.
-		 */
-		if (__copy_from_user(buf, src, n))
-			return -EFAULT;
-
-		if (copy_to_user(dst, buf, n))
-			return -EFAULT;
-
-		src += n;
-		dst += n;
-		bytes_left -= n;
-	}
-	return bytecount;
-}
-
-static int
-read_default_ldt (void __user * ptr, unsigned long bytecount)
-{
-	unsigned long size;
-	int err;
-
-	/* XXX fix me: should return equivalent of default_ldt[0] */
-	err = 0;
-	size = 8;
-	if (size > bytecount)
-		size = bytecount;
-
-	err = size;
-	if (clear_user(ptr, size))
-		err = -EFAULT;
-
-	return err;
-}
-
-static int
-write_ldt (void __user * ptr, unsigned long bytecount, int oldmode)
-{
-	struct ia32_user_desc ldt_info;
-	__u64 entry;
-	int ret;
-
-	if (bytecount != sizeof(ldt_info))
-		return -EINVAL;
-	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
-		return -EFAULT;
-
-	if (ldt_info.entry_number >= IA32_LDT_ENTRIES)
-		return -EINVAL;
-	if (ldt_info.contents == 3) {
-		if (oldmode)
-			return -EINVAL;
-		if (ldt_info.seg_not_present == 0)
-			return -EINVAL;
-	}
-
-	if (ldt_info.base_addr == 0 && ldt_info.limit == 0
-	    && (oldmode || (ldt_info.contents == 0 && ldt_info.read_exec_only == 1
-			    && ldt_info.seg_32bit == 0 && ldt_info.limit_in_pages == 0
-			    && ldt_info.seg_not_present == 1 && ldt_info.useable == 0)))
-		/* allow LDTs to be cleared by the user */
-		entry = 0;
-	else
-		/* we must set the "Accessed" bit as IVE doesn't emulate it */
-		entry = IA32_SEG_DESCRIPTOR(ldt_info.base_addr, ldt_info.limit,
-					    (((ldt_info.read_exec_only ^ 1) << 1)
-					     | (ldt_info.contents << 2)) | 1,
-					    1, 3, ldt_info.seg_not_present ^ 1,
-					    (oldmode ? 0 : ldt_info.useable),
-					    ldt_info.seg_32bit,
-					    ldt_info.limit_in_pages);
-	/*
-	 * Install the new entry.  We know we're accessing valid (mapped) user-level
-	 * memory, but we still need to guard against out-of-memory, hence we must use
-	 * put_user().
-	 */
-	ret = __put_user(entry, (__u64 __user *) IA32_LDT_OFFSET + ldt_info.entry_number);
-	ia32_load_segment_descriptors(current);
-	return ret;
-}
-
-asmlinkage int
-sys32_modify_ldt (int func, unsigned int ptr, unsigned int bytecount)
-{
-	int ret = -ENOSYS;
-
-	switch (func) {
-	      case 0:
-		ret = read_ldt(compat_ptr(ptr), bytecount);
-		break;
-	      case 1:
-		ret = write_ldt(compat_ptr(ptr), bytecount, 1);
-		break;
-	      case 2:
-		ret = read_default_ldt(compat_ptr(ptr), bytecount);
-		break;
-	      case 0x11:
-		ret = write_ldt(compat_ptr(ptr), bytecount, 0);
-		break;
-	}
-	return ret;
-}

arch/ia64/ia32/ia32_support.c

-/*
- * IA32 helper functions
- *
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com>
- * Copyright (C) 2001-2002 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00	A. Mallick	added csd/ssd/tssd for ia32 thread context
- * 02/19/01	D. Mosberger	dropped tssd; it's not needed
- * 09/14/01	D. Mosberger	fixed memory management for gdt/tss page
- * 09/29/01	D. Mosberger	added ia32_load_segment_descriptors()
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-
-#include <asm/intrinsics.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-
-#include "ia32priv.h"
-
-extern int die_if_kernel (char *str, struct pt_regs *regs, long err);
-
-struct page *ia32_shared_page[NR_CPUS];
-unsigned long *ia32_boot_gdt;
-unsigned long *cpu_gdt_table[NR_CPUS];
-struct page *ia32_gate_page;
-
-static unsigned long
-load_desc (u16 selector)
-{
-	unsigned long *table, limit, index;
-
-	if (!selector)
-		return 0;
-	if (selector & IA32_SEGSEL_TI) {
-		table = (unsigned long *) IA32_LDT_OFFSET;
-		limit = IA32_LDT_ENTRIES;
-	} else {
-		table = cpu_gdt_table[smp_processor_id()];
-		limit = IA32_PAGE_SIZE / sizeof(ia32_boot_gdt[0]);
-	}
-	index = selector >> IA32_SEGSEL_INDEX_SHIFT;
-	if (index >= limit)
-		return 0;
-	return IA32_SEG_UNSCRAMBLE(table[index]);
-}
-
-void
-ia32_load_segment_descriptors (struct task_struct *task)
-{
-	struct pt_regs *regs = task_pt_regs(task);
-
-	/* Setup the segment descriptors */
-	regs->r24 = load_desc(regs->r16 >> 16);		/* ESD */
-	regs->r27 = load_desc(regs->r16 >>  0);		/* DSD */
-	regs->r28 = load_desc(regs->r16 >> 32);		/* FSD */
-	regs->r29 = load_desc(regs->r16 >> 48);		/* GSD */
-	regs->ar_csd = load_desc(regs->r17 >>  0);	/* CSD */
-	regs->ar_ssd = load_desc(regs->r17 >> 16);	/* SSD */
-}
-
-int
-ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs)
-{
-	struct desc_struct *desc;
-	struct ia32_user_desc info;
-	int idx;
-
-	if (copy_from_user(&info, (void __user *)(childregs->r14 & 0xffffffff), sizeof(info)))
-		return -EFAULT;
-	if (LDT_empty(&info))
-		return -EINVAL;
-
-	idx = info.entry_number;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = child->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-	desc->a = LDT_entry_a(&info);
-	desc->b = LDT_entry_b(&info);
-
-	/* XXX: can this be done in a cleaner way ? */
-	load_TLS(&child->thread, smp_processor_id());
-	ia32_load_segment_descriptors(child);
-	load_TLS(&current->thread, smp_processor_id());
-
-	return 0;
-}
-
-void
-ia32_save_state (struct task_struct *t)
-{
-	t->thread.eflag = ia64_getreg(_IA64_REG_AR_EFLAG);
-	t->thread.fsr   = ia64_getreg(_IA64_REG_AR_FSR);
-	t->thread.fcr   = ia64_getreg(_IA64_REG_AR_FCR);
-	t->thread.fir   = ia64_getreg(_IA64_REG_AR_FIR);
-	t->thread.fdr   = ia64_getreg(_IA64_REG_AR_FDR);
-	ia64_set_kr(IA64_KR_IO_BASE, t->thread.old_iob);
-	ia64_set_kr(IA64_KR_TSSD, t->thread.old_k1);
-}
-
-void
-ia32_load_state (struct task_struct *t)
-{
-	unsigned long eflag, fsr, fcr, fir, fdr, tssd;
-	struct pt_regs *regs = task_pt_regs(t);
-
-	eflag = t->thread.eflag;
-	fsr = t->thread.fsr;
-	fcr = t->thread.fcr;
-	fir = t->thread.fir;
-	fdr = t->thread.fdr;
-	tssd = load_desc(_TSS);					/* TSSD */
-
-	ia64_setreg(_IA64_REG_AR_EFLAG, eflag);
-	ia64_setreg(_IA64_REG_AR_FSR, fsr);
-	ia64_setreg(_IA64_REG_AR_FCR, fcr);
-	ia64_setreg(_IA64_REG_AR_FIR, fir);
-	ia64_setreg(_IA64_REG_AR_FDR, fdr);
-	current->thread.old_iob = ia64_get_kr(IA64_KR_IO_BASE);
-	current->thread.old_k1 = ia64_get_kr(IA64_KR_TSSD);
-	ia64_set_kr(IA64_KR_IO_BASE, IA32_IOBASE);
-	ia64_set_kr(IA64_KR_TSSD, tssd);
-
-	regs->r17 = (_TSS << 48) | (_LDT << 32) | (__u32) regs->r17;
-	regs->r30 = load_desc(_LDT);				/* LDTD */
-	load_TLS(&t->thread, smp_processor_id());
-}
-
-/*
- * Setup IA32 GDT and TSS
- */
-void
-ia32_gdt_init (void)
-{
-	int cpu = smp_processor_id();
-
-	ia32_shared_page[cpu] = alloc_page(GFP_KERNEL);
-	if (!ia32_shared_page[cpu])
-		panic("failed to allocate ia32_shared_page[%d]\n", cpu);
-
-	cpu_gdt_table[cpu] = page_address(ia32_shared_page[cpu]);
-
-	/* Copy from the boot cpu's GDT */
-	memcpy(cpu_gdt_table[cpu], ia32_boot_gdt, PAGE_SIZE);
-}
-
-
-/*
- * Setup IA32 GDT and TSS
- */
-static void
-ia32_boot_gdt_init (void)
-{
-	unsigned long ldt_size;
-
-	ia32_shared_page[0] = alloc_page(GFP_KERNEL);
-	if (!ia32_shared_page[0])
-		panic("failed to allocate ia32_shared_page[0]\n");
-
-	ia32_boot_gdt = page_address(ia32_shared_page[0]);
-	cpu_gdt_table[0] = ia32_boot_gdt;
-
-	/* CS descriptor in IA-32 (scrambled) format */
-	ia32_boot_gdt[__USER_CS >> 3]
-		= IA32_SEG_DESCRIPTOR(0, (IA32_GATE_END-1) >> IA32_PAGE_SHIFT,
-				      0xb, 1, 3, 1, 1, 1, 1);
-
-	/* DS descriptor in IA-32 (scrambled) format */
-	ia32_boot_gdt[__USER_DS >> 3]
-		= IA32_SEG_DESCRIPTOR(0, (IA32_GATE_END-1) >> IA32_PAGE_SHIFT,
-				      0x3, 1, 3, 1, 1, 1, 1);
-
-	ldt_size = PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
-	ia32_boot_gdt[TSS_ENTRY] = IA32_SEG_DESCRIPTOR(IA32_TSS_OFFSET, 235,
-						       0xb, 0, 3, 1, 1, 1, 0);
-	ia32_boot_gdt[LDT_ENTRY] = IA32_SEG_DESCRIPTOR(IA32_LDT_OFFSET, ldt_size - 1,
-						       0x2, 0, 3, 1, 1, 1, 0);
-}
-
-static void
-ia32_gate_page_init(void)
-{
-	unsigned long *sr;
-
-	ia32_gate_page = alloc_page(GFP_KERNEL);
-	sr = page_address(ia32_gate_page);
-	/* This is popl %eax ; movl $,%eax ; int $0x80 */
-	*sr++ = 0xb858 | (__IA32_NR_sigreturn << 16) | (0x80cdUL << 48);
-
-	/* This is movl $,%eax ; int $0x80 */
-	*sr = 0xb8 | (__IA32_NR_rt_sigreturn << 8) | (0x80cdUL << 40);
-}
-
-void
-ia32_mem_init(void)
-{
-	ia32_boot_gdt_init();
-	ia32_gate_page_init();
-}
-
-/*
- * Handle bad IA32 interrupt via syscall
- */
-void
-ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs)
-{
-	siginfo_t siginfo;
-
-	if (die_if_kernel("Bad IA-32 interrupt", regs, int_num))
-		return;
-
-	siginfo.si_signo = SIGTRAP;
-	siginfo.si_errno = int_num;	/* XXX is it OK to abuse si_errno like this? */
-	siginfo.si_flags = 0;
-	siginfo.si_isr = 0;
-	siginfo.si_addr = NULL;
-	siginfo.si_imm = 0;
-	siginfo.si_code = TRAP_BRKPT;
-	force_sig_info(SIGTRAP, &siginfo, current);
-}
-
-void
-ia32_cpu_init (void)
-{
-	/* initialize global ia32 state - CR0 and CR4 */
-	ia64_setreg(_IA64_REG_AR_CFLAG, (((ulong) IA32_CR4 << 32) | IA32_CR0));
-}
-
-static int __init
-ia32_init (void)
-{
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-	{
-		extern struct kmem_cache *ia64_partial_page_cachep;
-
-		ia64_partial_page_cachep = kmem_cache_create("ia64_partial_page_cache",
-					sizeof(struct ia64_partial_page),
-					0, SLAB_PANIC, NULL);
-	}
-#endif
-	return 0;
-}
-
-__initcall(ia32_init);

arch/ia64/ia32/ia32_traps.c

-/*
- * IA-32 exception handlers
- *
- * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com>
- * Copyright (C) 2001-2002 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00	A. Mallick	added siginfo for most cases (close to IA32)
- * 09/29/00	D. Mosberger	added ia32_intercept()
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-
-#include "ia32priv.h"
-
-#include <asm/intrinsics.h>
-#include <asm/ptrace.h>
-
-int
-ia32_intercept (struct pt_regs *regs, unsigned long isr)
-{
-	switch ((isr >> 16) & 0xff) {
-	      case 0:	/* Instruction intercept fault */
-	      case 4:	/* Locked Data reference fault */
-	      case 1:	/* Gate intercept trap */
-		return -1;
-
-	      case 2:	/* System flag trap */
-		if (((isr >> 14) & 0x3) >= 2) {
-			/* MOV SS, POP SS instructions */
-			ia64_psr(regs)->id = 1;
-			return 0;
-		} else
-			return -1;
-	}
-	return -1;
-}
-
-int
-ia32_exception (struct pt_regs *regs, unsigned long isr)
-{
-	struct siginfo siginfo;
-
-	/* initialize these fields to avoid leaking kernel bits to user space: */
-	siginfo.si_errno = 0;
-	siginfo.si_flags = 0;
-	siginfo.si_isr = 0;
-	siginfo.si_imm = 0;
-	switch ((isr >> 16) & 0xff) {
-	      case 1:
-	      case 2:
-		siginfo.si_signo = SIGTRAP;
-		if (isr == 0)
-			siginfo.si_code = TRAP_TRACE;
-		else if (isr & 0x4)
-			siginfo.si_code = TRAP_BRANCH;
-		else
-			siginfo.si_code = TRAP_BRKPT;
-		break;
-
-	      case 3:
-		siginfo.si_signo = SIGTRAP;
-		siginfo.si_code = TRAP_BRKPT;
-		break;
-
-	      case 0:	/* Divide fault */
-		siginfo.si_signo = SIGFPE;
-		siginfo.si_code = FPE_INTDIV;
-		break;
-
-	      case 4:	/* Overflow */
-	      case 5:	/* Bounds fault */
-		siginfo.si_signo = SIGFPE;
-		siginfo.si_code = 0;
-		break;
-
-	      case 6:	/* Invalid Op-code */
-		siginfo.si_signo = SIGILL;
-		siginfo.si_code = ILL_ILLOPN;
-		break;
-
-	      case 7:	/* FP DNA */
-	      case 8:	/* Double Fault */
-	      case 9:	/* Invalid TSS */
-	      case 11:	/* Segment not present */
-	      case 12:	/* Stack fault */
-	      case 13:	/* General Protection Fault */
-		siginfo.si_signo = SIGSEGV;
-		siginfo.si_code = 0;
-		break;
-
-	      case 16:	/* Pending FP error */
-		{
-			unsigned long fsr, fcr;
-
-			fsr = ia64_getreg(_IA64_REG_AR_FSR);
-			fcr = ia64_getreg(_IA64_REG_AR_FCR);
-
-			siginfo.si_signo = SIGFPE;
-			/*
-			 * (~cwd & swd) will mask out exceptions that are not set to unmasked
-			 * status.  0x3f is the exception bits in these regs, 0x200 is the
-			 * C1 reg you need in case of a stack fault, 0x040 is the stack
-			 * fault bit.  We should only be taking one exception at a time,
-			 * so if this combination doesn't produce any single exception,
-			 * then we have a bad program that isn't synchronizing its FPU usage
-			 * and it will suffer the consequences since we won't be able to
-			 * fully reproduce the context of the exception
-			 */
-			siginfo.si_isr = isr;
-			siginfo.si_flags = __ISR_VALID;
-			switch(((~fcr) & (fsr & 0x3f)) | (fsr & 0x240)) {
-				case 0x000:
-				default:
-					siginfo.si_code = 0;
-					break;
-				case 0x001: /* Invalid Op */
-				case 0x040: /* Stack Fault */
-				case 0x240: /* Stack Fault | Direction */
-					siginfo.si_code = FPE_FLTINV;
-					break;
-				case 0x002: /* Denormalize */
-				case 0x010: /* Underflow */
-					siginfo.si_code = FPE_FLTUND;
-					break;
-				case 0x004: /* Zero Divide */
-					siginfo.si_code = FPE_FLTDIV;
-					break;
-				case 0x008: /* Overflow */
-					siginfo.si_code = FPE_FLTOVF;
-					break;
-				case 0x020: /* Precision */
-					siginfo.si_code = FPE_FLTRES;
-					break;
-			}
-
-			break;
-		}
-
-	      case 17:	/* Alignment check */
-		siginfo.si_signo = SIGSEGV;
-		siginfo.si_code = BUS_ADRALN;
-		break;
-
-	      case 19:	/* SSE Numeric error */
-		siginfo.si_signo = SIGFPE;
-		siginfo.si_code = 0;
-		break;
-
-	      default:
-		return -1;
-	}
-	force_sig_info(siginfo.si_signo, &siginfo, current);
-	return 0;
-}

arch/ia64/include/asm/ia32.h

-#ifndef _ASM_IA64_IA32_H
-#define _ASM_IA64_IA32_H
-
-
-#include <asm/ptrace.h>
-#include <asm/signal.h>
-
-#define IA32_NR_syscalls		285	/* length of syscall table */
-#define IA32_PAGE_SHIFT			12	/* 4KB pages */
-
-#ifndef __ASSEMBLY__
-
-# ifdef CONFIG_IA32_SUPPORT
-
-#define IA32_PAGE_OFFSET	0xc0000000
-
-extern void ia32_cpu_init (void);
-extern void ia32_mem_init (void);
-extern void ia32_gdt_init (void);
-extern int ia32_exception (struct pt_regs *regs, unsigned long isr);
-extern int ia32_intercept (struct pt_regs *regs, unsigned long isr);
-extern int ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs);
-
-# endif /* !CONFIG_IA32_SUPPORT */
-
-/* Declare this unconditionally, so we don't get warnings for unreachable code.  */
-extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info,
-			      sigset_t *set, struct pt_regs *regs);
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-extern int ia32_copy_ia64_partial_page_list(struct task_struct *,
-					unsigned long);
-extern void ia32_drop_ia64_partial_page_list(struct task_struct *);
-#else
-# define ia32_copy_ia64_partial_page_list(a1, a2)	0
-# define ia32_drop_ia64_partial_page_list(a1)	do { ; } while (0)
-#endif
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_IA64_IA32_H */

arch/ia64/include/asm/processor.h

@@ -270,23 +270,6 @@ typedef struct {
 		 (int __user *) (addr));							\
 })
 
-#ifdef CONFIG_IA32_SUPPORT
-struct desc_struct {
-	unsigned int a, b;
-};
-
-#define desc_empty(desc)		(!((desc)->a | (desc)->b))
-#define desc_equal(desc1, desc2)	(((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b))
-
-#define GDT_ENTRY_TLS_ENTRIES	3
-#define GDT_ENTRY_TLS_MIN	6
-#define GDT_ENTRY_TLS_MAX 	(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
-
-#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
-
-struct ia64_partial_page_list;
-#endif
-
 struct thread_struct {
 	__u32 flags;			/* various thread flags (see IA64_THREAD_*) */
 	/* writing on_ustack is performance-critical, so it's worth spending 8 bits on it... */
@@ -298,29 +281,6 @@ struct thread_struct {
 	__u64 rbs_bot;			/* the base address for the RBS */
 	int last_fph_cpu;		/* CPU that may hold the contents of f32-f127 */
 
-#ifdef CONFIG_IA32_SUPPORT
-	__u64 eflag;			/* IA32 EFLAGS reg */
-	__u64 fsr;			/* IA32 floating pt status reg */
-	__u64 fcr;			/* IA32 floating pt control reg */
-	__u64 fir;			/* IA32 fp except. instr. reg */
-	__u64 fdr;			/* IA32 fp except. data reg */
-	__u64 old_k1;			/* old value of ar.k1 */
-	__u64 old_iob;			/* old IOBase value */
-	struct ia64_partial_page_list *ppl; /* partial page list for 4K page size issue */
-        /* cached TLS descriptors. */
-	struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
-
-# define INIT_THREAD_IA32	.eflag =	0,			\
-				.fsr =		0,			\
-				.fcr =		0x17800000037fULL,	\
-				.fir =		0,			\
-				.fdr =		0,			\
-				.old_k1 =	0,			\
-				.old_iob =	0,			\
-				.ppl =		NULL,
-#else
-# define INIT_THREAD_IA32
-#endif /* CONFIG_IA32_SUPPORT */
 #ifdef CONFIG_PERFMON
 	void *pfm_context;		     /* pointer to detailed PMU context */
 	unsigned long pfm_needs_checking;    /* when >0, pending perfmon work on kernel exit */
@@ -342,7 +302,6 @@ struct thread_struct {
 	.rbs_bot =	STACK_TOP - DEFAULT_USER_STACK_SIZE,	\
 	.task_size =	DEFAULT_TASK_SIZE,			\
 	.last_fph_cpu =  -1,					\
-	INIT_THREAD_IA32					\
 	INIT_THREAD_PM						\
 	.dbr =		{0, },					\
 	.ibr =		{0, },					\
@@ -485,11 +444,6 @@ extern void __ia64_load_fpu (struct ia64_fpreg *fph);
 extern void ia64_save_debug_regs (unsigned long *save_area);
 extern void ia64_load_debug_regs (unsigned long *save_area);
 
-#ifdef CONFIG_IA32_SUPPORT
-extern void ia32_save_state (struct task_struct *task);
-extern void ia32_load_state (struct task_struct *task);
-#endif
-
 #define ia64_fph_enable()	do { ia64_rsm(IA64_PSR_DFH); ia64_srlz_d(); } while (0)
 #define ia64_fph_disable()	do { ia64_ssm(IA64_PSR_DFH); ia64_srlz_d(); } while (0)
 

arch/ia64/include/asm/syscall.h

@@ -22,33 +22,18 @@ static inline long syscall_get_nr(struct task_struct *task,
 	if ((long)regs->cr_ifs < 0) /* Not a syscall */
 		return -1;
 
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs))
-		return regs->r1;
-#endif
-
 	return regs->r15;
 }
 
 static inline void syscall_rollback(struct task_struct *task,
 				    struct pt_regs *regs)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs))
-		regs->r8 = regs->r1;
-#endif
-
 	/* do nothing */
 }
 
 static inline long syscall_get_error(struct task_struct *task,
 				     struct pt_regs *regs)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs))
-		return regs->r8;
-#endif
-
 	return regs->r10 == -1 ? regs->r8:0;
 }
 
@@ -62,13 +47,6 @@ static inline void syscall_set_return_value(struct task_struct *task,
 					    struct pt_regs *regs,
 					    int error, long val)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs)) {
-		regs->r8 = (long) error ? error : val;
-		return;
-	}
-#endif
-
 	if (error) {
 		/* error < 0, but ia64 uses > 0 return value */
 		regs->r8 = -error;
@@ -89,37 +67,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
 {
 	BUG_ON(i + n > 6);
 
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs)) {
-		switch (i + n) {
-		case 6:
-			if (!n--) break;
-			*args++ = regs->r13;
-		case 5:
-			if (!n--) break;
-			*args++ = regs->r15;
-		case 4:
-			if (!n--) break;
-			*args++ = regs->r14;
-		case 3:
-			if (!n--) break;
-			*args++ = regs->r10;
-		case 2:
-			if (!n--) break;
-			*args++ = regs->r9;
-		case 1:
-			if (!n--) break;
-			*args++ = regs->r11;
-		case 0:
-			if (!n--) break;
-		default:
-			BUG();
-			break;
-		}
-
-		return;
-	}
-#endif
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 0);
 }
 
@@ -130,34 +77,6 @@ static inline void syscall_set_arguments(struct task_struct *task,
 {
 	BUG_ON(i + n > 6);
 
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs)) {
-		switch (i + n) {
-		case 6:
-			if (!n--) break;
-			regs->r13 = *args++;
-		case 5:
-			if (!n--) break;
-			regs->r15 = *args++;
-		case 4:
-			if (!n--) break;
-			regs->r14 = *args++;
-		case 3:
-			if (!n--) break;
-			regs->r10 = *args++;
-		case 2:
-			if (!n--) break;
-			regs->r9 = *args++;
-		case 1:
-			if (!n--) break;
-			regs->r11 = *args++;
-		case 0:
-			if (!n--) break;
-		}
-
-		return;
-	}
-#endif
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
 }
 #endif	/* _ASM_SYSCALL_H */

arch/ia64/include/asm/system.h

@@ -191,15 +191,6 @@ do {								\
 
 #ifdef __KERNEL__
 
-#ifdef CONFIG_IA32_SUPPORT
-# define IS_IA32_PROCESS(regs)	(ia64_psr(regs)->is != 0)
-#else
-# define IS_IA32_PROCESS(regs)		0
-struct task_struct;
-static inline void ia32_save_state(struct task_struct *t __attribute__((unused))){}
-static inline void ia32_load_state(struct task_struct *t __attribute__((unused))){}
-#endif
-
 /*
  * Context switch from one thread to another.  If the two threads have
  * different address spaces, schedule() has already taken care of
@@ -233,7 +224,7 @@ extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct
 
 #define IA64_HAS_EXTRA_STATE(t)							\
 	((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID)	\
-	 || IS_IA32_PROCESS(task_pt_regs(t)) || PERFMON_IS_SYSWIDE())
+	 || PERFMON_IS_SYSWIDE())
 
 #define __switch_to(prev,next,last) do {							 \
 	IA64_ACCOUNT_ON_SWITCH(prev, next);							 \

arch/ia64/include/asm/unistd.h

@@ -335,20 +335,6 @@
 #define __ARCH_WANT_SYS_RT_SIGACTION
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
-#ifdef CONFIG_IA32_SUPPORT
-# define __ARCH_WANT_SYS_FADVISE64
-# define __ARCH_WANT_SYS_GETPGRP
-# define __ARCH_WANT_SYS_LLSEEK
-# define __ARCH_WANT_SYS_NICE
-# define __ARCH_WANT_SYS_OLD_GETRLIMIT
-# define __ARCH_WANT_SYS_OLDUMOUNT
-# define __ARCH_WANT_SYS_PAUSE
-# define __ARCH_WANT_SYS_SIGPENDING
-# define __ARCH_WANT_SYS_SIGPROCMASK
-# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
-# define __ARCH_WANT_COMPAT_SYS_TIME
-#endif
-
 #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER)
 
 #include <linux/types.h>

arch/ia64/kernel/audit.c

@@ -30,20 +30,11 @@ static unsigned signal_class[] = {
 
 int audit_classify_arch(int arch)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (arch == AUDIT_ARCH_I386)
-		return 1;
-#endif
 	return 0;
 }
 
 int audit_classify_syscall(int abi, unsigned syscall)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	extern int ia32_classify_syscall(unsigned);
-	if (abi == AUDIT_ARCH_I386)
-		return ia32_classify_syscall(syscall);
-#endif
 	switch(syscall) {
 	case __NR_open:
 		return 2;
@@ -58,18 +49,6 @@ int audit_classify_syscall(int abi, unsigned syscall)
 
 static int __init audit_classes_init(void)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	extern __u32 ia32_dir_class[];
-	extern __u32 ia32_write_class[];
-	extern __u32 ia32_read_class[];
-	extern __u32 ia32_chattr_class[];
-	extern __u32 ia32_signal_class[];
-	audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class);
-	audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class);
-	audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class);
-	audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class);
-	audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class);
-#endif
 	audit_register_class(AUDIT_CLASS_WRITE, write_class);
 	audit_register_class(AUDIT_CLASS_READ, read_class);
 	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);

arch/ia64/kernel/entry.S

@@ -71,15 +71,6 @@ ENTRY(ia64_execve)
 	add out3=16,sp			// regs
 	br.call.sptk.many rp=sys_execve
 .ret0:
-#ifdef CONFIG_IA32_SUPPORT
-	/*
-	 * Check if we're returning to ia32 mode. If so, we need to restore ia32 registers
-	 * from pt_regs.
-	 */
-	adds r16=PT(CR_IPSR)+16,sp
-	;;
-	ld8 r16=[r16]
-#endif
 	cmp4.ge p6,p7=r8,r0
 	mov ar.pfs=loc1			// restore ar.pfs
 	sxt4 r8=r8			// return 64-bit result
@@ -108,12 +99,6 @@ ENTRY(ia64_execve)
 	ldf.fill f23=[sp];	ldf.fill f24=[sp];	mov f25=f0
 	ldf.fill f26=[sp];	ldf.fill f27=[sp];	mov f28=f0
 	ldf.fill f29=[sp];	ldf.fill f30=[sp];	mov f31=f0
-#ifdef CONFIG_IA32_SUPPORT
-	tbit.nz p6,p0=r16, IA64_PSR_IS_BIT
-	movl loc0=ia64_ret_from_ia32_execve
-	;;
-(p6)	mov rp=loc0
-#endif
 	br.ret.sptk.many rp
 END(ia64_execve)
 
@@ -848,30 +833,6 @@ __paravirt_work_processed_syscall:
 	br.cond.sptk.many rbs_switch	// B
 END(__paravirt_leave_syscall)
 
-#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
-#ifdef CONFIG_IA32_SUPPORT
-GLOBAL_ENTRY(ia64_ret_from_ia32_execve)
-	PT_REGS_UNWIND_INFO(0)
-	adds r2=PT(R8)+16,sp			// r2 = &pt_regs.r8
-	adds r3=PT(R10)+16,sp			// r3 = &pt_regs.r10
-	;;
-	.mem.offset 0,0
-	st8.spill [r2]=r8	// store return value in slot for r8 and set unat bit
-	.mem.offset 8,0
-	st8.spill [r3]=r0	// clear error indication in slot for r10 and set unat bit
-#ifdef CONFIG_PARAVIRT
-	;;
-	// don't fall through, ia64_leave_kernel may be #define'd
-	br.cond.sptk.few ia64_leave_kernel
-	;;
-#endif /* CONFIG_PARAVIRT */
-END(ia64_ret_from_ia32_execve)
-#ifndef CONFIG_PARAVIRT
-	// fall through
-#endif
-#endif /* CONFIG_IA32_SUPPORT */
-#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
-
 GLOBAL_ENTRY(__paravirt_leave_kernel)
 	PT_REGS_UNWIND_INFO(0)
 	/*

arch/ia64/kernel/ivt.S

@@ -49,7 +49,6 @@
 
 #include <asm/asmmacro.h>
 #include <asm/break.h>
-#include <asm/ia32.h>
 #include <asm/kregs.h>
 #include <asm/asm-offsets.h>
 #include <asm/pgtable.h>
@@ -1386,28 +1385,6 @@ END(ia32_exception)
 // 0x6a00 Entry 46 (size 16 bundles) IA-32 Intercept  (30,31,59,70,71)
 ENTRY(ia32_intercept)
 	DBG_FAULT(46)
-#ifdef	CONFIG_IA32_SUPPORT
-	mov r31=pr
-	MOV_FROM_ISR(r16)
-	;;
-	extr.u r17=r16,16,8	// get ISR.code
-	mov r18=ar.eflag
-	MOV_FROM_IIM(r19)	// old eflag value
-	;;
-	cmp.ne p6,p0=2,r17
-(p6)	br.cond.spnt 1f		// not a system flag fault
-	xor r16=r18,r19
-	;;
-	extr.u r17=r16,18,1	// get the eflags.ac bit
-	;;
-	cmp.eq p6,p0=0,r17
-(p6)	br.cond.spnt 1f		// eflags.ac bit didn't change
-	;;
-	mov pr=r31,-1		// restore predicate registers
-	RFI
-
-1:
-#endif	// CONFIG_IA32_SUPPORT
 	FAULT(46)
 END(ia32_intercept)
 
@@ -1416,12 +1393,7 @@ END(ia32_intercept)
 // 0x6b00 Entry 47 (size 16 bundles) IA-32 Interrupt  (74)
 ENTRY(ia32_interrupt)
 	DBG_FAULT(47)
-#ifdef CONFIG_IA32_SUPPORT
-	mov r31=pr
-	br.sptk.many dispatch_to_ia32_handler
-#else
 	FAULT(47)
-#endif
 END(ia32_interrupt)
 
 	.org ia64_ivt+0x6c00
@@ -1715,89 +1687,3 @@ ENTRY(dispatch_illegal_op_fault)
 (p6)	br.call.dpnt.many b6=b6		// call returns to ia64_leave_kernel
 	br.sptk.many ia64_leave_kernel
 END(dispatch_illegal_op_fault)
-
-#ifdef CONFIG_IA32_SUPPORT
-
-	/*
-	 * There is no particular reason for this code to be here, other than that
-	 * there happens to be space here that would go unused otherwise.  If this
-	 * fault ever gets "unreserved", simply moved the following code to a more
-	 * suitable spot...
-	 */
-
-	// IA32 interrupt entry point
-
-ENTRY(dispatch_to_ia32_handler)
-	SAVE_MIN
-	;;
-	MOV_FROM_ISR(r14)
-	SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24)
-				// guarantee that interruption collection is on
-	;;
-	SSM_PSR_I(p15, p15, r3)
-	adds r3=8,r2		// Base pointer for SAVE_REST
-	;;
-	SAVE_REST
-	;;
-	mov r15=0x80
-	shr r14=r14,16		// Get interrupt number
-	;;
-	cmp.ne p6,p0=r14,r15
-(p6)	br.call.dpnt.many b6=non_ia32_syscall
-
-	adds r14=IA64_PT_REGS_R8_OFFSET + 16,sp	// 16 byte hole per SW conventions
-	adds r15=IA64_PT_REGS_R1_OFFSET + 16,sp
-	;;
-	cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
-	ld8 r8=[r14]		// get r8
-	;;
-	st8 [r15]=r8		// save original EAX in r1 (IA32 procs don't use the GP)
-	;;
-	alloc r15=ar.pfs,0,0,6,0	// must first in an insn group
-	;;
-	ld4 r8=[r14],8		// r8 == eax (syscall number)
-	mov r15=IA32_NR_syscalls
-	;;
-	cmp.ltu.unc p6,p7=r8,r15
-	ld4 out1=[r14],8	// r9 == ecx
-	;;
-	ld4 out2=[r14],8	// r10 == edx
-	;;
-	ld4 out0=[r14]		// r11 == ebx
-	adds r14=(IA64_PT_REGS_R13_OFFSET) + 16,sp
-	;;
-	ld4 out5=[r14],PT(R14)-PT(R13)	// r13 == ebp
-	;;
-	ld4 out3=[r14],PT(R15)-PT(R14)	// r14 == esi
-	adds r2=TI_FLAGS+IA64_TASK_SIZE,r13
-	;;
-	ld4 out4=[r14]		// r15 == edi
-	movl r16=ia32_syscall_table
-	;;
-(p6)	shladd r16=r8,3,r16	// force ni_syscall if not valid syscall number
-	ld4 r2=[r2]		// r2 = current_thread_info()->flags
-	;;
-	ld8 r16=[r16]
-	and r2=_TIF_SYSCALL_TRACEAUDIT,r2	// mask trace or audit
-	;;
-	mov b6=r16
-	movl r15=ia32_ret_from_syscall
-	cmp.eq p8,p0=r2,r0
-	;;
-	mov rp=r15
-(p8)	br.call.sptk.many b6=b6
-	br.cond.sptk ia32_trace_syscall
-
-non_ia32_syscall:
-	alloc r15=ar.pfs,0,0,2,0
-	mov out0=r14				// interrupt #
-	add out1=16,sp				// pointer to pt_regs
-	;;			// avoid WAW on CFM
-	br.call.sptk.many rp=ia32_bad_interrupt
-.ret1:	movl r15=ia64_leave_kernel
-	;;
-	mov rp=r15
-	br.ret.sptk.many rp
-END(dispatch_to_ia32_handler)
-
-#endif /* CONFIG_IA32_SUPPORT */

arch/ia64/kernel/process.c

@@ -33,7 +33,6 @@
 #include <asm/cpu.h>
 #include <asm/delay.h>
 #include <asm/elf.h>
-#include <asm/ia32.h>
 #include <asm/irq.h>
 #include <asm/kexec.h>
 #include <asm/pgalloc.h>
@@ -358,11 +357,6 @@ ia64_save_extra (struct task_struct *task)
 	if (info & PFM_CPUINFO_SYST_WIDE)
 		pfm_syst_wide_update_task(task, info, 0);
 #endif
-
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(task)))
-		ia32_save_state(task);
-#endif
 }
 
 void
@@ -383,11 +377,6 @@ ia64_load_extra (struct task_struct *task)
 	if (info & PFM_CPUINFO_SYST_WIDE) 
 		pfm_syst_wide_update_task(task, info, 1);
 #endif
-
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(task)))
-		ia32_load_state(task);
-#endif
 }
 
 /*
@@ -426,7 +415,7 @@ copy_thread(unsigned long clone_flags,
 	     unsigned long user_stack_base, unsigned long user_stack_size,
 	     struct task_struct *p, struct pt_regs *regs)
 {
-	extern char ia64_ret_from_clone, ia32_ret_from_clone;
+	extern char ia64_ret_from_clone;
 	struct switch_stack *child_stack, *stack;
 	unsigned long rbs, child_rbs, rbs_size;
 	struct pt_regs *child_ptregs;
@@ -457,7 +446,7 @@ copy_thread(unsigned long clone_flags,
 	memcpy((void *) child_rbs, (void *) rbs, rbs_size);
 
 	if (likely(user_mode(child_ptregs))) {
-		if ((clone_flags & CLONE_SETTLS) && !IS_IA32_PROCESS(regs))
+		if (clone_flags & CLONE_SETTLS)
 			child_ptregs->r13 = regs->r16;	/* see sys_clone2() in entry.S */
 		if (user_stack_base) {
 			child_ptregs->r12 = user_stack_base + user_stack_size - 16;
@@ -477,10 +466,7 @@ copy_thread(unsigned long clone_flags,
 		child_ptregs->r13 = (unsigned long) p;		/* set `current' pointer */
 	}
 	child_stack->ar_bspstore = child_rbs + rbs_size;
-	if (IS_IA32_PROCESS(regs))
-		child_stack->b0 = (unsigned long) &ia32_ret_from_clone;
-	else
-		child_stack->b0 = (unsigned long) &ia64_ret_from_clone;
+	child_stack->b0 = (unsigned long) &ia64_ret_from_clone;
 
 	/* copy parts of thread_struct: */
 	p->thread.ksp = (unsigned long) child_stack - 16;
@@ -515,22 +501,6 @@ copy_thread(unsigned long clone_flags,
 	p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR)
 			   | THREAD_FLAGS_TO_SET);
 	ia64_drop_fpu(p);	/* don't pick up stale state from a CPU's fph */
-#ifdef CONFIG_IA32_SUPPORT
-	/*
-	 * If we're cloning an IA32 task then save the IA32 extra
-	 * state from the current task to the new task
-	 */
-	if (IS_IA32_PROCESS(task_pt_regs(current))) {
-		ia32_save_state(p);
-		if (clone_flags & CLONE_SETTLS)
-			retval = ia32_clone_tls(p, child_ptregs);
-
-		/* Copy partially mapped page list */
-		if (!retval)
-			retval = ia32_copy_ia64_partial_page_list(p,
-								clone_flags);
-	}
-#endif
 
 #ifdef CONFIG_PERFMON
 	if (current->thread.pfm_context)
@@ -704,15 +674,6 @@ EXPORT_SYMBOL(kernel_thread);
 int
 kernel_thread_helper (int (*fn)(void *), void *arg)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(current))) {
-		/* A kernel thread is always a 64-bit process. */
-		current->thread.map_base  = DEFAULT_MAP_BASE;
-		current->thread.task_size = DEFAULT_TASK_SIZE;
-		ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob);
-		ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1);
-	}
-#endif
 	return (*fn)(arg);
 }
 
@@ -725,14 +686,6 @@ flush_thread (void)
 	/* drop floating-point and debug-register state if it exists: */
 	current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID);
 	ia64_drop_fpu(current);
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(current))) {
-		ia32_drop_ia64_partial_page_list(current);
-		current->thread.task_size = IA32_PAGE_OFFSET;
-		set_fs(USER_DS);
-		memset(current->thread.tls_array, 0, sizeof(current->thread.tls_array));
-	}
-#endif
 }
 
 /*
@@ -753,8 +706,6 @@ exit_thread (void)
 	if (current->thread.flags & IA64_THREAD_DBG_VALID)
 		pfm_release_debug_registers(current);
 #endif
-	if (IS_IA32_PROCESS(task_pt_regs(current)))
-		ia32_drop_ia64_partial_page_list(current);
 }
 
 unsigned long

arch/ia64/kernel/ptrace.c

@@ -1250,13 +1250,8 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
 		long syscall;
 		int arch;
 
-		if (IS_IA32_PROCESS(&regs)) {
-			syscall = regs.r1;
-			arch = AUDIT_ARCH_I386;
-		} else {
-			syscall = regs.r15;
-			arch = AUDIT_ARCH_IA64;
-		}
+		syscall = regs.r15;
+		arch = AUDIT_ARCH_IA64;
 
 		audit_syscall_entry(arch, syscall, arg0, arg1, arg2, arg3);
 	}
@@ -2172,11 +2167,6 @@ static const struct user_regset_view user_ia64_view = {
 
 const struct user_regset_view *task_user_regset_view(struct task_struct *tsk)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	extern const struct user_regset_view user_ia32_view;
-	if (IS_IA32_PROCESS(task_pt_regs(tsk)))
-		return &user_ia32_view;
-#endif
 	return &user_ia64_view;
 }
 

arch/ia64/kernel/setup.c

@@ -46,7 +46,6 @@
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
 
-#include <asm/ia32.h>
 #include <asm/machvec.h>
 #include <asm/mca.h>
 #include <asm/meminit.h>
@@ -1016,10 +1015,6 @@ cpu_init (void)
 	ia64_mmu_init(ia64_imva(cpu_data));
 	ia64_mca_cpu_init(ia64_imva(cpu_data));
 
-#ifdef CONFIG_IA32_SUPPORT
-	ia32_cpu_init();
-#endif
-
 	/* Clear ITC to eliminate sched_clock() overflows in human time.  */
 	ia64_set_itc(0);
 

arch/ia64/kernel/signal.c

@@ -21,7 +21,6 @@
 #include <linux/unistd.h>
 #include <linux/wait.h>
 
-#include <asm/ia32.h>
 #include <asm/intrinsics.h>
 #include <asm/uaccess.h>
 #include <asm/rse.h>
@@ -425,14 +424,8 @@ static long
 handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset,
 	       struct sigscratch *scr)
 {
-	if (IS_IA32_PROCESS(&scr->pt)) {
-		/* send signal to IA-32 process */
-		if (!ia32_setup_frame1(sig, ka, info, oldset, &scr->pt))
-			return 0;
-	} else
-		/* send signal to IA-64 process */
-		if (!setup_frame(sig, ka, info, oldset, scr))
-			return 0;
+	if (!setup_frame(sig, ka, info, oldset, scr))
+		return 0;
 
 	spin_lock_irq(&current->sighand->siglock);
 	sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
@@ -462,7 +455,6 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 	siginfo_t info;
 	long restart = in_syscall;
 	long errno = scr->pt.r8;
-#	define ERR_CODE(c)	(IS_IA32_PROCESS(&scr->pt) ? -(c) : (c))
 
 	/*
 	 * 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)
 		 * inferior call), thus it's important to check for restarting _after_
 		 * get_signal_to_deliver().
 		 */
-		if (IS_IA32_PROCESS(&scr->pt)) {
-			if (in_syscall) {
-				if (errno >= 0)
-					restart = 0;
-				else
-					errno = -errno;
-			}
-		} else if ((long) scr->pt.r10 != -1)
+		if ((long) scr->pt.r10 != -1)
 			/*
 			 * A system calls has to be restarted only if one of the error codes
 			 * ERESTARTNOHAND, ERESTARTSYS, or ERESTARTNOINTR is returned.  If r10
@@ -513,22 +498,18 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 			switch (errno) {
 			      case ERESTART_RESTARTBLOCK:
 			      case ERESTARTNOHAND:
-				scr->pt.r8 = ERR_CODE(EINTR);
+				scr->pt.r8 = EINTR;
 				/* note: scr->pt.r10 is already -1 */
 				break;
 
 			      case ERESTARTSYS:
 				if ((ka.sa.sa_flags & SA_RESTART) == 0) {
-					scr->pt.r8 = ERR_CODE(EINTR);
+					scr->pt.r8 = EINTR;
 					/* note: scr->pt.r10 is already -1 */
 					break;
 				}
 			      case ERESTARTNOINTR:
-				if (IS_IA32_PROCESS(&scr->pt)) {
-					scr->pt.r8 = scr->pt.r1;
-					scr->pt.cr_iip -= 2;
-				} else
-					ia64_decrement_ip(&scr->pt);
+				ia64_decrement_ip(&scr->pt);
 				restart = 0; /* don't restart twice if handle_signal() fails... */
 			}
 		}
@@ -555,21 +536,14 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 		if (errno == ERESTARTNOHAND || errno == ERESTARTSYS || errno == ERESTARTNOINTR
 		    || errno == ERESTART_RESTARTBLOCK)
 		{
-			if (IS_IA32_PROCESS(&scr->pt)) {
-				scr->pt.r8 = scr->pt.r1;
-				scr->pt.cr_iip -= 2;
-				if (errno == ERESTART_RESTARTBLOCK)
-					scr->pt.r8 = 0;	/* x86 version of __NR_restart_syscall */
-			} else {
-				/*
-				 * Note: the syscall number is in r15 which is saved in
-				 * pt_regs so all we need to do here is adjust ip so that
-				 * the "break" instruction gets re-executed.
-				 */
-				ia64_decrement_ip(&scr->pt);
-				if (errno == ERESTART_RESTARTBLOCK)
-					scr->pt.r15 = __NR_restart_syscall;
-			}
+			/*
+			 * Note: the syscall number is in r15 which is saved in
+			 * pt_regs so all we need to do here is adjust ip so that
+			 * the "break" instruction gets re-executed.
+			 */
+			ia64_decrement_ip(&scr->pt);
+			if (errno == ERESTART_RESTARTBLOCK)
+				scr->pt.r15 = __NR_restart_syscall;
 		}
 	}
 

arch/ia64/kernel/smpboot.c

@@ -44,7 +44,6 @@
 #include <asm/cache.h>
 #include <asm/current.h>
 #include <asm/delay.h>
-#include <asm/ia32.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/machvec.h>
@@ -443,10 +442,6 @@ smp_callin (void)
 		calibrate_delay();
 	local_cpu_data->loops_per_jiffy = loops_per_jiffy;
 
-#ifdef CONFIG_IA32_SUPPORT
-	ia32_gdt_init();
-#endif
-
 	/*
 	 * Allow the master to continue.
 	 */

arch/ia64/kernel/traps.c

@@ -19,7 +19,6 @@
 #include <linux/kdebug.h>
 
 #include <asm/fpswa.h>
-#include <asm/ia32.h>
 #include <asm/intrinsics.h>
 #include <asm/processor.h>
 #include <asm/uaccess.h>
@@ -626,10 +625,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
 		break;
 
 	      case 45:
-#ifdef CONFIG_IA32_SUPPORT
-		if (ia32_exception(&regs, isr) == 0)
-			return;
-#endif
 		printk(KERN_ERR "Unexpected IA-32 exception (Trap 45)\n");
 		printk(KERN_ERR "  iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx\n",
 		       iip, ifa, isr);
@@ -637,10 +632,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
 		break;
 
 	      case 46:
-#ifdef CONFIG_IA32_SUPPORT
-		if (ia32_intercept(&regs, isr) == 0)
-			return;
-#endif
 		printk(KERN_ERR "Unexpected IA-32 intercept trap (Trap 46)\n");
 		printk(KERN_ERR "  iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx, iim - 0x%lx\n",
 		       iip, ifa, isr, iim);

arch/ia64/mm/init.c

@@ -22,7 +22,6 @@
 #include <linux/kexec.h>
 
 #include <asm/dma.h>
-#include <asm/ia32.h>
 #include <asm/io.h>
 #include <asm/machvec.h>
 #include <asm/numa.h>
@@ -668,10 +667,6 @@ mem_init (void)
 			fsyscall_table[i] = sys_call_table[i] | 1;
 	}
 	setup_gate();
-
-#ifdef CONFIG_IA32_SUPPORT
-	ia32_mem_init();
-#endif
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG

arch/ia64/xen/hypercall.S

@@ -58,11 +58,6 @@ __HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA)
 __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
 __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
 
-#ifdef CONFIG_IA32_SUPPORT
-__HCALL0(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
-__HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG)	// refer SDM vol1 3.1.8
-#endif /* CONFIG_IA32_SUPPORT */
-
 GLOBAL_ENTRY(xen_set_rr0_to_rr4)
 	mov r8=r32
 	mov r9=r33

arch/ia64/xen/xen_pv_ops.c

@@ -301,11 +301,6 @@ static void xen_setreg(int regnum, unsigned long val)
 	case _IA64_REG_AR_KR0 ... _IA64_REG_AR_KR7:
 		xen_set_kr(regnum - _IA64_REG_AR_KR0, val);
 		break;
-#ifdef CONFIG_IA32_SUPPORT
-	case _IA64_REG_AR_EFLAG:
-		xen_set_eflag(val);
-		break;
-#endif
 	case _IA64_REG_AR_ITC:
 		xen_set_itc(val);
 		break;
@@ -332,11 +327,6 @@ static unsigned long xen_getreg(int regnum)
 	case _IA64_REG_PSR:
 		res = xen_get_psr();
 		break;
-#ifdef CONFIG_IA32_SUPPORT
-	case _IA64_REG_AR_EFLAG:
-		res = xen_get_eflag();
-		break;
-#endif
 	case _IA64_REG_AR_ITC:
 		res = xen_get_itc();
 		break;
@@ -710,9 +700,6 @@ extern unsigned long xen_getreg(int regnum);
 
 __DEFINE_FUNC(getreg,
 	      __DEFINE_GET_REG(PSR, PSR)
-#ifdef CONFIG_IA32_SUPPORT
-	      __DEFINE_GET_REG(AR_EFLAG, EFLAG)
-#endif
 
 	      /* get_itc */
 	      "mov r2 = " __stringify(_IA64_REG_AR_ITC) "\n"
@@ -789,9 +776,6 @@ __DEFINE_FUNC(setreg,
 	      ";;\n"
 	      "(p6) br.cond.spnt xen_set_itc\n"
 
-#ifdef CONFIG_IA32_SUPPORT
-	      __DEFINE_SET_REG(AR_EFLAG, SET_EFLAG)
-#endif
 	      __DEFINE_SET_REG(CR_TPR, SET_TPR)
 	      __DEFINE_SET_REG(CR_EOI, EOI)
 

drivers/input/input-compat.h

@@ -21,8 +21,6 @@
    you why the ifdefs are needed? Think about it again. -AK */
 #ifdef CONFIG_X86_64
 #  define INPUT_COMPAT_TEST is_compat_task()
-#elif defined(CONFIG_IA64)
-#  define INPUT_COMPAT_TEST IS_IA32_PROCESS(task_pt_regs(current))
 #elif defined(CONFIG_S390)
 #  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
 #elif defined(CONFIG_MIPS)