linux-kernel - Re: `calibrate_APIC_clock()` takes 100 ms on AMD systems

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Message-ID: <20200424152820.GA13558@hirez.programming.kicks-ass.net>
Date:   Fri, 24 Apr 2020 17:28:20 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, LKML <linux-kernel@...r.kernel.org>,
        Tom Lendacky <thomas.lendacky@....com>
Subject: Re: `calibrate_APIC_clock()` takes 100 ms on AMD systems

On Fri, Apr 24, 2020 at 04:59:21PM +0200, Paul Menzel wrote:
> Do AMD devices feature an alternatives like for Intel?

https://developer.amd.com/resources/developer-guides-manuals/

Let us know if you find something...