Merge tiger.hpl.hp.com:/data1/bk/vanilla/linux-2.5

into tiger.hpl.hp.com:/data1/bk/lia64/to-linus-2.5

arch/ia64/kernel/entry.S

@@ -688,7 +688,7 @@ GLOBAL_ENTRY(ia64_leave_syscall)
 	mov b7=r0		// clear b7
 	;;
 (pUStk) st1 [r14]=r3
-	movl r17=THIS_CPU(ia64_phys_stacked_size_p8)
+	addl r17=THIS_CPU(ia64_phys_stacked_size_p8),r0
 	;;
 	mov r16=ar.bsp		// get existing backing store pointer
 	srlz.i			// ensure interruption collection is off
@@ -841,7 +841,7 @@ GLOBAL_ENTRY(ia64_leave_kernel)
 	shr.u r18=r19,16	// get byte size of existing "dirty" partition
 	;;
 	mov r16=ar.bsp		// get existing backing store pointer
-	movl r17=THIS_CPU(ia64_phys_stacked_size_p8)
+	addl r17=THIS_CPU(ia64_phys_stacked_size_p8),r0
 	;;
 	ld4 r17=[r17]		// r17 = cpu_data->phys_stacked_size_p8
 (pKStk)	br.cond.dpnt skip_rbs_switch

arch/ia64/kernel/fsys.S

@@ -165,7 +165,7 @@ ENTRY(fsys_gettimeofday)
 	.altrp b6
 	.body
 	add r9=TI_FLAGS+IA64_TASK_SIZE,r16
-	movl r3=THIS_CPU(cpu_info)
+	addl r3=THIS_CPU(cpu_info),r0
 
 	mov.m r31=ar.itc		// put time stamp into r31 (ITC) == now		(35 cyc)
 #ifdef CONFIG_SMP
@@ -177,7 +177,7 @@ ENTRY(fsys_gettimeofday)
 	movl r19=xtime			// xtime is a timespec struct
 
 	ld8 r10=[r10]			// r10 <- __per_cpu_offset[0]
-	movl r21=THIS_CPU(cpu_info)
+	addl r21=THIS_CPU(cpu_info),r0
 	;;
 	add r10=r21, r10		// r10 <- &cpu_data(time_keeper_id)
 	tbit.nz p8,p0 = r2, IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT

arch/ia64/kernel/time.c

@@ -83,12 +83,11 @@ unsigned long
 itc_get_offset (void)
 {
 	unsigned long elapsed_cycles, lost = jiffies - wall_jiffies;
-	unsigned long now, last_tick;
+	unsigned long now = ia64_get_itc(), last_tick;
 
 	last_tick = (cpu_data(TIME_KEEPER_ID)->itm_next
 		     - (lost + 1)*cpu_data(TIME_KEEPER_ID)->itm_delta);
 
-	now = ia64_get_itc();
 	if (unlikely((long) (now - last_tick) < 0)) {
 		printk(KERN_ERR "CPU %d: now < last_tick (now=0x%lx,last_tick=0x%lx)!\n",
 		       smp_processor_id(), now, last_tick);

include/asm-ia64/system.h

@@ -20,9 +20,9 @@
 #include <asm/percpu.h>
 
 /* 0xa000000000000000 - 0xa000000000000000+PERCPU_PAGE_SIZE remain unmapped */
-#define PERCPU_ADDR		(0xa000000000000000 + PERCPU_PAGE_SIZE)
-#define GATE_ADDR		(0xa000000000000000 + 2*PERCPU_PAGE_SIZE)
+#define GATE_ADDR		(0xa000000000000000 + PERCPU_PAGE_SIZE)
 #define KERNEL_START		 0xa000000100000000
+#define PERCPU_ADDR		(-PERCPU_PAGE_SIZE)
 
 #ifndef __ASSEMBLY__