powerpc: Various UP build fixes

Mostly this involves adding #include <asm/smp.h>, since that defines
things like boot_cpuid[_phys] and [gs]et_hard_smp_processor_id, which
are SMP-related but still needed on UP.  This incorporates fixes
posted by Olof Johansson and Heikki Lindholm.

Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/rtas.c

@@ -608,7 +608,6 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
 	return 0;
 }
 
-#ifdef CONFIG_SMP
 /* This version can't take the spinlock, because it never returns */
 
 struct rtas_args rtas_stop_self_args = {
@@ -633,7 +632,6 @@ void rtas_stop_self(void)
 
 	panic("Alas, I survived.\n");
 }
-#endif
 
 /*
  * Call early during boot, before mem init or bootmem, to retreive the RTAS

arch/powerpc/kernel/time.c

@@ -61,6 +61,7 @@
 #include <asm/prom.h>
 #include <asm/irq.h>
 #include <asm/div64.h>
+#include <asm/smp.h>
 #ifdef CONFIG_PPC64
 #include <asm/systemcfg.h>
 #include <asm/firmware.h>
@@ -118,10 +119,6 @@ static unsigned adjusting_time = 0;
 unsigned long ppc_proc_freq;
 unsigned long ppc_tb_freq;
 
-#ifdef CONFIG_PPC32	/* XXX for now */
-#define boot_cpuid	0
-#endif
-
 u64 tb_last_jiffy __cacheline_aligned_in_smp;
 unsigned long tb_last_stamp;
 

arch/powerpc/lib/locks.c

@@ -23,6 +23,7 @@
 #if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
 #include <asm/hvcall.h>
 #include <asm/iseries/hv_call.h>
+#include <asm/smp.h>
 
 void __spin_yield(raw_spinlock_t *lock)
 {

arch/powerpc/mm/numa.c

@@ -21,6 +21,7 @@
 #include <asm/machdep.h>
 #include <asm/abs_addr.h>
 #include <asm/system.h>
+#include <asm/smp.h>
 
 static int numa_enabled = 1;
 

arch/powerpc/platforms/pseries/iommu.c

@@ -46,6 +46,7 @@
 #include <asm/firmware.h>
 #include <asm/tce.h>
 #include <asm/ppc-pci.h>
+#include <asm/udbg.h>
 
 #include "plpar_wrappers.h"
 

arch/powerpc/platforms/pseries/lpar.c

@@ -38,6 +38,7 @@
 #include <asm/abs_addr.h>
 #include <asm/cputable.h>
 #include <asm/udbg.h>
+#include <asm/smp.h>
 
 #include "plpar_wrappers.h"
 

arch/powerpc/platforms/pseries/setup.c

@@ -65,6 +65,7 @@
 #include <asm/ppc-pci.h>
 #include <asm/i8259.h>
 #include <asm/udbg.h>
+#include <asm/smp.h>
 
 #include "plpar_wrappers.h"
 

arch/ppc64/kernel/idle.c

@@ -28,6 +28,7 @@
 #include <asm/time.h>
 #include <asm/systemcfg.h>
 #include <asm/machdep.h>
+#include <asm/smp.h>
 
 extern void power4_idle(void);
 

arch/ppc64/kernel/machine_kexec.c

@@ -24,6 +24,7 @@
 #include <asm/mmu.h>
 #include <asm/sections.h>	/* _end */
 #include <asm/prom.h>
+#include <asm/smp.h>
 
 #define HASH_GROUP_SIZE 0x80	/* size of each hash group, asm/mmu.h */
 

arch/ppc64/kernel/sysfs.c

@@ -20,6 +20,7 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/machdep.h>
+#include <asm/smp.h>
 
 static DEFINE_PER_CPU(struct cpu, cpu_devices);
 

include/asm-powerpc/smp.h

@@ -86,7 +86,6 @@ extern void __cpu_die(unsigned int cpu);
 #else
 /* for UP */
 #define smp_setup_cpu_maps()
-#define smp_release_cpus()
 
 #endif /* CONFIG_SMP */
 
@@ -94,6 +93,9 @@ extern void __cpu_die(unsigned int cpu);
 #define get_hard_smp_processor_id(CPU) (paca[(CPU)].hw_cpu_id)
 #define set_hard_smp_processor_id(CPU, VAL) \
 	do { (paca[(CPU)].hw_cpu_id = (VAL)); } while (0)
+
+extern void smp_release_cpus(void);
+
 #else
 /* 32-bit */
 #ifndef CONFIG_SMP