Commit a6a8e009 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Paul Mackerras

powerpc: Silence software timebase sync

When no hardware method is provided to sync the timebase registers
across the machine, and the platform doesn't sync them for us, then we
use a generic software implementation.  Currently, the code for that
has many printks, and they don't have log levels.  Most of the printks
are only useful for debugging the code, and since we haven't had any
problems with it for years, this turns them into pr_debug.
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 1fd0f525
...@@ -113,7 +113,7 @@ void __devinit smp_generic_give_timebase(void) ...@@ -113,7 +113,7 @@ void __devinit smp_generic_give_timebase(void)
{ {
int i, score, score2, old, min=0, max=5000, offset=1000; int i, score, score2, old, min=0, max=5000, offset=1000;
printk("Synchronizing timebase\n"); pr_debug("Software timebase sync\n");
/* if this fails then this kernel won't work anyway... */ /* if this fails then this kernel won't work anyway... */
tbsync = kzalloc( sizeof(*tbsync), GFP_KERNEL ); tbsync = kzalloc( sizeof(*tbsync), GFP_KERNEL );
...@@ -123,13 +123,13 @@ void __devinit smp_generic_give_timebase(void) ...@@ -123,13 +123,13 @@ void __devinit smp_generic_give_timebase(void)
while (!tbsync->ack) while (!tbsync->ack)
barrier(); barrier();
printk("Got ack\n"); pr_debug("Got ack\n");
/* binary search */ /* binary search */
for (old = -1; old != offset ; offset = (min+max) / 2) { for (old = -1; old != offset ; offset = (min+max) / 2) {
score = start_contest(kSetAndTest, offset, NUM_ITER); score = start_contest(kSetAndTest, offset, NUM_ITER);
printk("score %d, offset %d\n", score, offset ); pr_debug("score %d, offset %d\n", score, offset );
if( score > 0 ) if( score > 0 )
max = offset; max = offset;
...@@ -140,8 +140,8 @@ void __devinit smp_generic_give_timebase(void) ...@@ -140,8 +140,8 @@ void __devinit smp_generic_give_timebase(void)
score = start_contest(kSetAndTest, min, NUM_ITER); score = start_contest(kSetAndTest, min, NUM_ITER);
score2 = start_contest(kSetAndTest, max, NUM_ITER); score2 = start_contest(kSetAndTest, max, NUM_ITER);
printk("Min %d (score %d), Max %d (score %d)\n", pr_debug("Min %d (score %d), Max %d (score %d)\n",
min, score, max, score2); min, score, max, score2);
score = abs(score); score = abs(score);
score2 = abs(score2); score2 = abs(score2);
offset = (score < score2) ? min : max; offset = (score < score2) ? min : max;
...@@ -155,7 +155,7 @@ void __devinit smp_generic_give_timebase(void) ...@@ -155,7 +155,7 @@ void __devinit smp_generic_give_timebase(void)
if (score2 <= score || score2 < 20) if (score2 <= score || score2 < 20)
break; break;
} }
printk("Final offset: %d (%d/%d)\n", offset, score2, NUM_ITER ); pr_debug("Final offset: %d (%d/%d)\n", offset, score2, NUM_ITER );
/* exiting */ /* exiting */
tbsync->cmd = kExit; tbsync->cmd = kExit;
......
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