From 64f17818977d0989f7d05347670777611b295799 Mon Sep 17 00:00:00 2001 From: "Suzuki K. Poulose" Date: Mon, 19 Oct 2015 14:24:38 +0100 Subject: [PATCH] arm64: Make the CPU information more clear 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 Tested-by: Dave Martin Signed-off-by: Catalin Marinas --- arch/arm64/kernel/setup.c | 3 +-- arch/arm64/kernel/smp.c | 3 ++- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 79df79a2ea61..1d503e2d6957 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -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; diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index b7a973d6861e..c1d044b52f42 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -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); -- 2.30.2