From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754210AbbJSNd3 (ORCPT ); Mon, 19 Oct 2015 09:33:29 -0400 Received: from eu-smtp-delivery-143.mimecast.com ([207.82.80.143]:29562 "EHLO eu-smtp-delivery-143.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753472AbbJSNZ2 (ORCPT ); Mon, 19 Oct 2015 09:25:28 -0400 From: "Suzuki K. Poulose" To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, mark.rutland@arm.com, christoffer.dall@linaro.org, steve.capper@linaro.org, Vladimir.Murzin@arm.com, james.morse@arm.com, andre.przywara@arm.com, ryan.arnold@linaro.org, aph@redhat.com, edward.nevill@linaro.org, dave.martin@arm.com, ard.biesheuvel@linaro.org, marc.zyngier@arm.com, "Suzuki K. Poulose" Subject: [PATCHv4 01/24] arm64: Make the CPU information more clear Date: Mon, 19 Oct 2015 14:24:38 +0100 Message-Id: <1445261101-22344-2-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1445261101-22344-1-git-send-email-suzuki.poulose@arm.com> References: <1445261101-22344-1-git-send-email-suzuki.poulose@arm.com> X-OriginalArrivalTime: 19 Oct 2015 13:25:25.0899 (UTC) FILETIME=[9D69BDB0:01D10A71] X-MC-Unique: 7I2MWi70S9-hnVVnGskYQQ-3 Content-Type: text/plain; charset=WINDOWS-1252 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id t9JDXbq1008162 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 --- Changes since V3: - Delay the boot message from secondary CPUs, until they turn online --- 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 79df79a..1d503e2 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 b7a973d..c1d044b 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); -- 1.7.9.5