Re: [PATCH v2] x86/intel: Disable HPET on another Intel Coffee Lake platform

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?

+++ 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,