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-rw-r--r--arch/powerpc/platforms/cell/smp.c30
1 files changed, 2 insertions, 28 deletions
diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c
index 9046803c8276..bc97fada48c6 100644
--- a/arch/powerpc/platforms/cell/smp.c
+++ b/arch/powerpc/platforms/cell/smp.c
@@ -36,7 +36,6 @@
36#include <asm/prom.h> 36#include <asm/prom.h>
37#include <asm/smp.h> 37#include <asm/smp.h>
38#include <asm/paca.h> 38#include <asm/paca.h>
39#include <asm/time.h>
40#include <asm/machdep.h> 39#include <asm/machdep.h>
41#include <asm/cputable.h> 40#include <asm/cputable.h>
42#include <asm/firmware.h> 41#include <asm/firmware.h>
@@ -140,31 +139,6 @@ static void __devinit smp_cell_setup_cpu(int cpu)
140 mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER); 139 mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
141} 140}
142 141
143static DEFINE_SPINLOCK(timebase_lock);
144static unsigned long timebase = 0;
145
146static void __devinit cell_give_timebase(void)
147{
148 spin_lock(&timebase_lock);
149 rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
150 timebase = get_tb();
151 spin_unlock(&timebase_lock);
152
153 while (timebase)
154 barrier();
155 rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
156}
157
158static void __devinit cell_take_timebase(void)
159{
160 while (!timebase)
161 barrier();
162 spin_lock(&timebase_lock);
163 set_tb(timebase >> 32, timebase & 0xffffffff);
164 timebase = 0;
165 spin_unlock(&timebase_lock);
166}
167
168static void __devinit smp_cell_kick_cpu(int nr) 142static void __devinit smp_cell_kick_cpu(int nr)
169{ 143{
170 BUG_ON(nr < 0 || nr >= NR_CPUS); 144 BUG_ON(nr < 0 || nr >= NR_CPUS);
@@ -224,8 +198,8 @@ void __init smp_init_cell(void)
224 198
225 /* Non-lpar has additional take/give timebase */ 199 /* Non-lpar has additional take/give timebase */
226 if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) { 200 if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
227 smp_ops->give_timebase = cell_give_timebase; 201 smp_ops->give_timebase = rtas_give_timebase;
228 smp_ops->take_timebase = cell_take_timebase; 202 smp_ops->take_timebase = rtas_take_timebase;
229 } 203 }
230 204
231 DBG(" <- smp_init_cell()\n"); 205 DBG(" <- smp_init_cell()\n");