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From:   Thomas Gleixner <tglx@linutronix.de>
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To:     Bjorn Helgaas <helgaas@kernel.org>,
        Jakub Kicinski <kuba@kernel.org>
Cc:     x86@kernel.org, jose.souza@intel.com, hpa@zytor.com, bp@alien8.de,
        mingo@redhat.com, kai.heng.feng@canonical.com, bhelgaas@google.com,
        linux-pci@vger.kernel.org, rudolph@fb.com, xapienz@fb.com,
        bmilton@fb.com, paulmck@kernel.org, stable@vger.kernel.org,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Dave Hansen <dave.hansen@linux.intel.com>
Subject: Re: [PATCH v2] x86/intel: Disable HPET on another Intel Coffee Lake
 platform
In-Reply-To: <20210929160550.GA773748@bhelgaas>
References: <20210929160550.GA773748@bhelgaas>
Date:   Thu, 30 Sep 2021 11:08:44 +0200
Message-ID: <87mtnu77mr.ffs@tglx>
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On Wed, Sep 29 2021 at 11:05, Bjorn Helgaas wrote:
> On Wed, Sep 29, 2021 at 06:11:07AM -0700, Jakub Kicinski wrote:
>> On Thu, 16 Sep 2021 19:46:48 -0700 Jakub Kicinski wrote:
>> > My Lenovo T490s with i7-8665U had been marking TSC as unstable
>> > since v5.13, resulting in very sluggish desktop experience...
>> 
>> Where do we stand? Waiting for tglx to refactor PC10 detection and use
>> that, or just review delay?
>
> From my point of view, this is an x86 issue, not a PCI one, so I'll
> defer to the x86 folks.

Yes, it is. I'm still trying to make sense of this enumeration
muck. Adding these silly PCI ids to the quirks section is a whack a mole
game which does not make sense.

Lemme find a few spare cycles to whip up a patch.

Thanks,

        tglx