From: Marc Zyngier <maz@kernel.org>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Chao Liu <liuchao173@huawei.com>,
catalin.marinas@arm.com, will@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, hewenliang4@huawei.com,
zhoukang7@huawei.com
Subject: Re: [PATCH v2] add cpu frequency to cpuinfo in arm64
Date: Wed, 26 Jan 2022 12:29:00 +0000 [thread overview]
Message-ID: <c73a9fb20b42f2086a0fb9c068ecc272@kernel.org> (raw)
In-Reply-To: <bf7fdba2-7850-9d38-157d-7a1e726512a5@arm.com>
On 2022-01-26 12:05, Robin Murphy wrote:
> On 2022-01-26 09:23, Chao Liu wrote:
>> There is cpu frequency in /proc/cpuinfo in x86 but not in arm64
>
> arm64 cpuinfo also doesn't show the APIC ID or microcode version.
> Different architectures are different.
>
> Besides, x86 cpuinfo only shows MHz if the CPU has X86_FEATURE_TSC, so
> for compatibility we should only do this on AArch64 CPUs which have
> X86_FEATURE_TSC.
/me prepares a patch to be sent in just over 2 months...
M.
--
Jazz is not dead. It just smells funny...
prev parent reply other threads:[~2022-01-26 12:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-26 9:23 Chao Liu
2022-01-26 10:08 ` Sudeep Holla
2022-01-26 12:05 ` Robin Murphy
2022-01-26 12:29 ` Marc Zyngier [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c73a9fb20b42f2086a0fb9c068ecc272@kernel.org \
--to=maz@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=hewenliang4@huawei.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=liuchao173@huawei.com \
--cc=robin.murphy@arm.com \
--cc=will@kernel.org \
--cc=zhoukang7@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome