Commit 1112450a authored Oct 06, 2015 by Scott Wood

powerpc/85xx: Don't use generic timebase sync on 64-bit



85xx currently uses the generic timebase sync mechanism when
CONFIG_KEXEC is enabled, because 32-bit 85xx kexec support does a hard
reset of each core.  64-bit 85xx kexec does not do this, so we neither
need nor want this (nor is the generic timebase sync code built on
ppc64).

FWIW, I don't like the fact that the hard reset is done on 32-bit
kexec, and I especially don't like the timebase sync being triggered
only on the presence of CONFIG_KEXEC rather than actually booting in
that environment, but that's beyond the scope of this patch...

Signed-off-by: Scott Wood <scottwood@freescale.com>

parent 9f640bf5

arch/powerpc/platforms/85xx/smp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -344,7 +344,7 @@ struct smp_ops_t smp_85xx_ops = {
		.cpu_disable = generic_cpu_disable,
		.cpu_die = generic_cpu_die,
		#endif
		#ifdef CONFIG_KEXEC
		#if defined(CONFIG_KEXEC) && !defined(CONFIG_PPC64)
		.give_timebase = smp_generic_give_timebase,
		.take_timebase = smp_generic_take_timebase,
		#endif