From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Catalin.Marinas@arm.com, Will.Deacon@arm.com,
Mark.Rutland@arm.com, edward.nevill@linaro.org, aph@redhat.com,
linux-kernel@vger.kernel.org, andre.przywara@arm.com,
ard.biesheuvel@linaro.org, dave.martin@arm.com,
marc.zyngier@arm.com,
"Suzuki K. Poulose" <suzuki.poulose@arm.com>
Subject: [PATCH 01/22] arm64: Make the CPU information more clear
Date: Wed, 16 Sep 2015 15:20:59 +0100 [thread overview]
Message-ID: <1442413280-31885-2-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1442413280-31885-1-git-send-email-suzuki.poulose@arm.com>
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(-)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 6bab21f..60fc9a9 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -202,8 +202,7 @@ 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 dbdaacd..641f529 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -145,7 +145,8 @@ 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
--
1.7.9.5
next prev parent reply other threads:[~2015-09-16 14:23 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-16 14:20 [PATCH 00/22] arm64: Consolidate CPU feature handling Suzuki K. Poulose
2015-09-16 14:20 ` Suzuki K. Poulose [this message]
2015-09-16 14:21 ` [PATCH 02/22] arm64: Delay ELF HWCAP initialisation until all CPUs are up Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 03/22] arm64: Move cpu feature detection code Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 04/22] arm64: Move mixed endian support detection Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 05/22] arm64: Move /proc/cpuinfo handling code Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 06/22] arm64: sys_reg: Define System register encoding Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 07/22] arm64: Keep track of CPU feature registers Suzuki K. Poulose
2015-09-25 11:38 ` Dave Martin
2015-09-25 13:05 ` Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 08/22] arm64: Consolidate CPU Sanity check to CPU Feature infrastructure Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 09/22] arm64: Read system wide CPUID value Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 10/22] arm64: Cleanup mixed endian support detection Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 11/22] arm64: Populate cpuinfo after notify_cpu_starting Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 12/22] arm64: Delay cpu feature checks Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 13/22] arm64: Make use of system wide capability checks Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 14/22] arm64: Cleanup HWCAP handling Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 15/22] arm64: Move FP/ASIMD hwcap handling to common code Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 16/22] arm64/debug: Make use of the system wide safe value Suzuki K. Poulose
2015-09-29 12:17 ` Vladimir Murzin
2015-09-29 12:46 ` Suzuki K. Poulose
2015-09-30 16:13 ` Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 17/22] arm64/kvm: Make use of the system wide safe values Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 18/22] arm64: Add helper to decode register from instruction Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 19/22] arm64: cpufeature: Track the user visible fields Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 20/22] arm64: Expose feature registers by emulating MRS Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 21/22] arm64: cpuinfo: Expose MIDR_EL1 and REVIDR_EL1 to sysfs Suzuki K. Poulose
2015-09-16 14:21 ` [PATCH 22/22] arm64: feature registers: Documentation Suzuki K. Poulose
2015-09-18 9:23 ` [PATCH 00/22] arm64: Consolidate CPU feature handling Suzuki K. Poulose
2015-09-22 15:19 ` James Morse
2015-09-22 15:21 ` Suzuki K. Poulose
2015-09-23 15:56 ` Dave Martin
2015-09-23 15:58 ` Suzuki K. Poulose
2015-09-23 16:37 ` Suzuki K. Poulose
2015-09-23 17:08 ` Dave P Martin
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