[PATCH] ppc64: Remove pvr from the paca

From: Anton Blanchard <anton@samba.org>

Slowly removing non essential things from the paca

arch/ppc64/kernel/setup.c

@@ -283,6 +283,10 @@ EXPORT_SYMBOL(machine_halt);
 unsigned long ppc_proc_freq;
 unsigned long ppc_tb_freq;
 
+#ifdef CONFIG_SMP
+DEFINE_PER_CPU(unsigned int, pvr);
+#endif
+
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
 	unsigned long cpu_id = (unsigned long)v - 1;
@@ -302,7 +306,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		return 0;
 
 #ifdef CONFIG_SMP
-	pvr = paca[cpu_id].pvr;
+	pvr = per_cpu(pvr, cpu_id);
 #else
 	pvr = _get_PVR();
 #endif

arch/ppc64/kernel/smp.c

@@ -575,9 +575,11 @@ extern struct gettimeofday_struct do_gtod;
 
 struct thread_info *current_set[NR_CPUS];
 
+DECLARE_PER_CPU(unsigned int, pvr);
+
 static void __devinit smp_store_cpu_info(int id)
 {
-	paca[id].pvr = _get_PVR();
+	per_cpu(pvr, id) = _get_PVR();
 }
 
 void __init smp_prepare_cpus(unsigned int max_cpus)

include/asm-ppc64/paca.h

@@ -64,14 +64,13 @@ struct paca_struct {
         u16 xHwProcNum;                 /* Physical processor number            0x1A */
 	u32 default_decr;		/* Default decrementer value		0x1c */	
 	u64 xKsave;			/* Saved Kernel stack addr or zero	0x20 */
-	u64 pvr;			/* Processor version register		0x28 */
 	struct ItLpQueue *lpQueuePtr;	/* LpQueue handled by this processor    0x30 */
 	u64  xTOC;			/* Kernel TOC address			0x38 */
 	STAB xStab_data;		/* Segment table information		0x40,0x48,0x50 */
 	u8 *exception_sp;		/*                                      0x58 */
 	u8 xProcEnabled;		/*                                      0x59 */
 	u8 prof_enabled;		/* 1=iSeries profiling enabled          0x60 */
-	u8 resv1[30];			/*					0x61-0x7F */
+	u8 resv1[38];			/*					0x61-0x7F */
 
 /*=====================================================================================
  * CACHE_LINE_2 0x0080 - 0x00FF