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authorchenhui zhao <chenhui.zhao@freescale.com>2015-11-20 10:14:01 +0100
committerScott Wood <oss@buserror.net>2016-03-05 06:56:31 +0100
commit2f4f1f815bc6d03ea42d4f67dd1e284525e7524e (patch)
tree3cbc7c754e6f206ffcbc776f2c9e23a8edf05177 /arch/powerpc/include/asm/smp.h
parentpowerpc/mpc85xx: refactor the PM operations (diff)
downloadlinux-2f4f1f815bc6d03ea42d4f67dd1e284525e7524e.tar.xz
linux-2f4f1f815bc6d03ea42d4f67dd1e284525e7524e.zip
powerpc/mpc85xx: Add hotplug support on E5500 and E500MC cores
Freescale E500MC and E5500 core-based platforms, like P4080, T1040, support disabling/enabling CPU dynamically. This patch adds this feature on those platforms. Signed-off-by: Chenhui Zhao <chenhui.zhao@freescale.com> Signed-off-by: Tang Yuantian <Yuantian.Tang@feescale.com> [scottwood: removed unused pr_fmt] Signed-off-by: Scott Wood <oss@buserror.net>
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
-rw-r--r--arch/powerpc/include/asm/smp.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index 825663c30945..bdb811116d85 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -67,6 +67,9 @@ void generic_cpu_die(unsigned int cpu);
void generic_set_cpu_dead(unsigned int cpu);
void generic_set_cpu_up(unsigned int cpu);
int generic_check_cpu_restart(unsigned int cpu);
+int is_cpu_dead(unsigned int cpu);
+#else
+#define generic_set_cpu_up(i) do { } while (0)
#endif
#ifdef CONFIG_PPC64