[SPARC64]: Delete do_gettimeofday asm.

arch/sparc64/kernel/entry.S

@@ -1795,69 +1795,3 @@ __flushw_user:
 	 restore	%g0, %g0, %g0
 2:	retl
 	 nop
-
-/* This need not obtain the xtime_lock as it is coded in
- * an implicitly SMP safe way already.
- */
-	.align		64
-	.globl		do_gettimeofday
-do_gettimeofday:	/* %o0 = timevalp */
-	/* Load doubles must be used on xtime so that what we get
-	 * is guarenteed to be atomic, this is why we can run this
-	 * with interrupts on full blast.  Don't touch this... -DaveM
-	 *
-	 * Note with time_t changes to the timeval type, I must now use
-	 * nucleus atomic quad 128-bit loads.
-	 *
-	 * If xtime was stored recently, I've seen crap from the
-	 * quad load on Cheetah.  Putting a membar SYNC before
-	 * the quad load seems to make the problem go away. -DaveM
-	 * (we should nop out workarounds like this on spitfire)
-	 */
-	sethi	%hi(timer_tick_offset), %g3
-	sethi	%hi(xtime), %g2
-	sethi	%hi(timer_tick_compare), %g1
-	ldx	[%g3 + %lo(timer_tick_offset)], %g3
-	or	%g2, %lo(xtime), %g2
-	or	%g1, %lo(timer_tick_compare), %g1
-1:	membar	#Sync
-	ldda	[%g2] ASI_NUCLEUS_QUAD_LDD, %o4
-	BRANCH_IF_ANY_CHEETAH(o2,o1,2f)
-	ba,pt	%xcc, 3f
-	 rd	%tick, %o1
-2:	ba,pt	%xcc, 3f
-	 rd	%asr24, %o1
-3:	ldx	[%g1], %g7
-	membar	#Sync
-	ldda	[%g2] ASI_NUCLEUS_QUAD_LDD, %o2
-	xor	%o4, %o2, %o2
-	xor	%o5, %o3, %o3
-	orcc	%o2, %o3, %g0
-	bne,pn	%xcc, 1b
-	 sethi	%hi(wall_jiffies), %o2
-	sethi	%hi(jiffies), %o3
-	ldx	[%o2 + %lo(wall_jiffies)], %o2
-	ldx	[%o3 + %lo(jiffies)], %o3
-	sub	%o3, %o2, %o2
-	sethi	%hi(timer_ticks_per_usec_quotient), %o3
-	add	%g3, %o1, %o1
-	ldx	[%o3 + %lo(timer_ticks_per_usec_quotient)], %o3
-	sub	%o1, %g7, %o1
-	mulx	%o3, %o1, %o1
-	brz,pt	%o2, 1f
-	 srlx	%o1, 32, %o1
-	sethi	%hi(10000), %g2
-	or	%g2, %lo(10000), %g2
-	add	%o1, %g2, %o1
-1:	sethi	%hi(1000000), %o2
-	srlx	%o5, 32, %o5
-	or	%o2, %lo(1000000), %o2
-	add	%o5, %o1, %o5
-	cmp	%o5, %o2
-	bl,a,pn	%xcc, 1f
-	 stx	%o4, [%o0 + 0x0]
-	add	%o4, 0x1, %o4
-	sub	%o5, %o2, %o5
-	stx	%o4, [%o0 + 0x0]
-1:	retl
-	 st	%o5, [%o0 + 0x8]