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-rw-r--r--arch/powerpc/platforms/pseries/smp.c30
1 files changed, 2 insertions, 28 deletions
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 1a231c389ba..1f8f6cfb94f 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -35,7 +35,6 @@
35#include <asm/prom.h> 35#include <asm/prom.h>
36#include <asm/smp.h> 36#include <asm/smp.h>
37#include <asm/paca.h> 37#include <asm/paca.h>
38#include <asm/time.h>
39#include <asm/machdep.h> 38#include <asm/machdep.h>
40#include <asm/cputable.h> 39#include <asm/cputable.h>
41#include <asm/firmware.h> 40#include <asm/firmware.h>
@@ -118,31 +117,6 @@ static void __devinit smp_xics_setup_cpu(int cpu)
118} 117}
119#endif /* CONFIG_XICS */ 118#endif /* CONFIG_XICS */
120 119
121static DEFINE_SPINLOCK(timebase_lock);
122static unsigned long timebase = 0;
123
124static void __devinit pSeries_give_timebase(void)
125{
126 spin_lock(&timebase_lock);
127 rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
128 timebase = get_tb();
129 spin_unlock(&timebase_lock);
130
131 while (timebase)
132 barrier();
133 rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
134}
135
136static void __devinit pSeries_take_timebase(void)
137{
138 while (!timebase)
139 barrier();
140 spin_lock(&timebase_lock);
141 set_tb(timebase >> 32, timebase & 0xffffffff);
142 timebase = 0;
143 spin_unlock(&timebase_lock);
144}
145
146static void __devinit smp_pSeries_kick_cpu(int nr) 120static void __devinit smp_pSeries_kick_cpu(int nr)
147{ 121{
148 BUG_ON(nr < 0 || nr >= NR_CPUS); 122 BUG_ON(nr < 0 || nr >= NR_CPUS);
@@ -209,8 +183,8 @@ static void __init smp_init_pseries(void)
209 183
210 /* Non-lpar has additional take/give timebase */ 184 /* Non-lpar has additional take/give timebase */
211 if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) { 185 if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
212 smp_ops->give_timebase = pSeries_give_timebase; 186 smp_ops->give_timebase = rtas_give_timebase;
213 smp_ops->take_timebase = pSeries_take_timebase; 187 smp_ops->take_timebase = rtas_take_timebase;
214 } 188 }
215 189
216 pr_debug(" <- smp_init_pSeries()\n"); 190 pr_debug(" <- smp_init_pSeries()\n");