Commit 0c2aca88 authored Mar 03, 2006 by Paul Mackerras

powerpc32: Fix timebase synchronization on 32-bit powermacs



The variable `timebase' used to transfer the current timebase value
from one cpu to the other in smp_core99_give/take_timebase was only
an unsigned long, i.e. 32 bits on 32-bit machines.  It needs to be
64 bits.  This makes it a u64, and fixes the issue reported by Kyle
Moffett, that the two cpus see wildly different values for the time
of day.

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

parent 76a0ee3d

arch/powerpc/platforms/powermac/smp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -435,7 +435,7 @@ struct smp_ops_t psurge_smp_ops = {
		*/

		static void (*pmac_tb_freeze)(int freeze);
		static unsigned long timebase;
		static u64 timebase;
		static int tb_req;

		static void smp_core99_give_timebase(void)

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