From: Bjorn Helgaas <helgaas@kernel.org>
To: Jakub Kicinski <kuba@kernel.org>
Cc: x86@kernel.org, jose.souza@intel.com, hpa@zytor.com,
bp@alien8.de, mingo@redhat.com, tglx@linutronix.de,
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
Subject: Re: [PATCH v2] x86/intel: Disable HPET on another Intel Coffee Lake platform
Date: Wed, 29 Sep 2021 11:05:50 -0500 [thread overview]
Message-ID: <20210929160550.GA773748@bhelgaas> (raw)
In-Reply-To: <20210929061107.243699c2@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
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.
> > +++ b/arch/x86/kernel/early-quirks.c
> > @@ -716,6 +716,8 @@ static struct chipset early_qrk[] __initdata = {
> > PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
> > { PCI_VENDOR_ID_INTEL, 0x3e20,
> > PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
> > + { PCI_VENDOR_ID_INTEL, 0x3e34,
> > + PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
> > { PCI_VENDOR_ID_INTEL, 0x3ec4,
> > PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
> > { PCI_VENDOR_ID_INTEL, 0x8a12,
>
next prev parent reply other threads:[~2021-09-29 16:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-17 2:46 [PATCH v2] x86/intel: Disable HPET on another Intel Coffee Lake platform Jakub Kicinski
2021-09-27 22:36 ` Krzysztof Wilczyński
2021-09-29 13:11 ` Jakub Kicinski
2021-09-29 16:05 ` Bjorn Helgaas [this message]
2021-09-30 9:08 ` Thomas Gleixner
2021-09-30 11:15 ` [PATCH RFT] x86/hpet: Use another crystalball to evaluate HPET usability Thomas Gleixner
2021-09-30 11:38 ` Rafael J. Wysocki
2021-09-30 17:07 ` Thomas Gleixner
2021-09-30 17:21 ` [PATCH RFT v2] " Thomas Gleixner
2021-09-30 17:50 ` Jakub Kicinski
2021-10-01 11:08 ` Rafael J. Wysocki
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