From e8d432c9cf0a3d569b2d00877d12c9ffe9e55286 Mon Sep 17 00:00:00 2001 From: Lorenzo Pieralisi Date: Tue, 6 Nov 2012 11:57:43 +0000 Subject: ARM: kernel: add MIDR to per-CPU information data The advent of big.LITTLE ARM platforms requires the kernel to be able to identify the MIDRs of all online CPUs upon request. MIDRs are stashed at boot time so that kernel subsystems can detect the MIDR of online CPUs by simply retrieving per-CPU data updated by all booted CPUs. Signed-off-by: Lorenzo Pieralisi Acked-by: Nicolas Pitre --- arch/arm/kernel/smp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/kernel/smp.c') diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index fbc8b2623d82..7eacd84cdc9c 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -281,6 +281,7 @@ static void __cpuinit smp_store_cpu_info(unsigned int cpuid) struct cpuinfo_arm *cpu_info = &per_cpu(cpu_data, cpuid); cpu_info->loops_per_jiffy = loops_per_jiffy; + cpu_info->cpuid = read_cpuid_id(); store_cpu_topology(cpuid); } -- cgit v1.2.3