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| author | chenhui zhao <chenhui.zhao@freescale.com> | 2015-11-20 17:14:01 +0800 |
|---|---|---|
| committer | Scott Wood <oss@buserror.net> | 2016-03-04 23:56:31 -0600 |
| commit | 2f4f1f815bc6d03ea42d4f67dd1e284525e7524e (patch) | |
| tree | 3cbc7c754e6f206ffcbc776f2c9e23a8edf05177 /arch/powerpc/include/asm/smp.h | |
| parent | 56f1ba280719469bffc870b6b2d935f3a3019ea4 (diff) | |
| download | lwn-2f4f1f815bc6d03ea42d4f67dd1e284525e7524e.tar.gz lwn-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.h | 3 |
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 |