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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-03 09:42:39 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-03 09:42:39 +0200 |
| commit | c61daf6b0a2f7048c6e74d52b043fa6a779b128a (patch) | |
| tree | a4a38656ac79775f38ce5fd6b00dd9b89cd5ccec /arch/arm/kernel/smp.c | |
| parent | 786c89f7a24b4ed8b68dfb136347267875315c30 (diff) | |
| parent | 160a84cfc975f4aaec1cb32a48bba23ccaf43761 (diff) | |
Merge branch 'imx-cleanup' of git://git.pengutronix.de/git/ukl/linux-2.6 into imx-cleanup
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index e7f92a4321f..d88ff0230e8 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -27,7 +27,7 @@ #include <linux/clockchips.h> #include <linux/completion.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/cacheflush.h> #include <asm/cpu.h> #include <asm/cputype.h> @@ -365,8 +365,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) */ if (max_cpus > ncores) max_cpus = ncores; - - if (max_cpus > 1) { + if (ncores > 1 && max_cpus) { /* * Enable the local timer or broadcast device for the * boot CPU, but only if we have more than one CPU. @@ -374,6 +373,14 @@ void __init smp_prepare_cpus(unsigned int max_cpus) percpu_timer_setup(); /* + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. A platform should + * re-initialize the map in platform_smp_prepare_cpus() if + * present != possible (e.g. physical hotplug). + */ + init_cpu_present(&cpu_possible_map); + + /* * Initialise the SCU if there are more than one CPU * and let them know where to start. */ |