[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>

1 files changed, 0 insertions, 114 deletions

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 @@
 
 #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 */