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[RFC,02/10] arm64: Make the CPU information more clear

Message ID 1437731037-25795-3-git-send-email-suzuki.poulose@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Suzuki K Poulose July 24, 2015, 9:43 a.m. UTC 
From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>

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, 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>
---
 arch/arm64/kernel/setup.c |    3 +--
 arch/arm64/kernel/smp.c   |    3 ++-
 2 files changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index f3067d4..a30cf1d 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -229,8 +229,7 @@  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 50fb469..a121c67 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -144,7 +144,8 @@  asmlinkage void secondary_start_kernel(void)
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 
 	set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
-	printk("CPU%u: Booted secondary processor\n", cpu);
+	pr_info("CPU%u: Booted secondary processor [%08x]\n",
+					 cpu, read_cpuid_id());
 
 	/*
 	 * TTBR0 is only used for the identity mapping at this stage. Make it