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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-19 19:44:49 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 07:53:24 +0200 |
| commit | fb82b83970a32263698e54a8779d2ce88cd3b060 (patch) | |
| tree | 3f396a3225fa7eae960d9033926b00e751327577 /arch/powerpc/include/asm/smp.h | |
| parent | powerpc/udbg: Fix Kconfig entry for avoiding 44x early debug with KVM (diff) | |
| download | linux-fb82b83970a32263698e54a8779d2ce88cd3b060.tar.xz linux-fb82b83970a32263698e54a8779d2ce88cd3b060.zip | |
powerpc/smp: More generic support for "soft hotplug"
This adds more generic support for doing CPU hotplug with a simple
idle loop and no actual reset of the processors. The generic
smp_generic_kick_cpu() does the hotplug bringup trick if the PACA
shows that the CPU has already been started at boot and we provide
an accessor for the CPU state.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
| -rw-r--r-- | arch/powerpc/include/asm/smp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 15a70b7f638b..adba970ce918 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -65,6 +65,7 @@ int generic_cpu_disable(void); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); void generic_set_cpu_dead(unsigned int cpu); +int generic_check_cpu_restart(unsigned int cpu); #endif #ifdef CONFIG_PPC64 |