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arm64: Make the CPU information more clear

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At early boot, we print the CPU version/revision. On a heterogeneous
system, we could have different types of CPUs. Print the CPU info for
all active cpus. Also, the secondary CPUs prints the message only when
they turn online.

Also, remove the redundant 'revision' information which doesn't
make any sense without the 'variant' field.

Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Tested-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Suzuki K. Poulose 2015-10-19 14:24:38 +01:00 committed by Catalin Marinas
parent 56a3f30e02
commit 64f1781897
2 changed files with 3 additions and 3 deletions
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3
arch/arm64/kernel/setup.c
View File

@ -203,8 +203,7 @@ static void __init setup_processor(void)
u32 cwg;
int cls;
printk("CPU: AArch64 Processor [%08x] revision %d\n",
read_cpuid_id(), read_cpuid_id() & 15);
pr_info("Boot CPU: AArch64 Processor [%08x]\n", read_cpuid_id());
sprintf(init_utsname()->machine, ELF_PLATFORM);
elf_hwcap = 0;

3
arch/arm64/kernel/smp.c
View File

@ -144,7 +144,6 @@ asmlinkage void secondary_start_kernel(void)
current->active_mm = mm;
set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
printk("CPU%u: Booted secondary processor\n", cpu);
/*
* TTBR0 is only used for the identity mapping at this stage. Make it
@ -177,6 +176,8 @@ asmlinkage void secondary_start_kernel(void)
* the CPU migration code to notice that the CPU is online
* before we continue.
*/
pr_info("CPU%u: Booted secondary processor [%08x]\n",
cpu, read_cpuid_id());
set_cpu_online(cpu, true);
complete(&cpu_running);