From: "Michał Pecio" <michal.pecio@gmail.com>
To: fps <mista.tapas@gmx.net>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>, linux-usb@vger.kernel.org
Subject: Re: Misbehaving Alder Lake-N PCH USB 3.2 xHCI Host Controller
Date: Sun, 25 Aug 2024 17:15:37 +0200 [thread overview]
Message-ID: <20240825171537.33e49293@foxbook> (raw)
In-Reply-To: <67D20520-0374-4461-B626-5142F1D7B743@gmx.net>
What is the last digit of your HCSPARAMS2 register?
Here's my three hosts, guess which is the one with problems.
grep HCSPARAMS2 /sys/kernel/debug/usb/xhci/*/reg-cap
/sys/kernel/debug/usb/xhci/0000:02:00.0/reg-cap:HCSPARAMS2 = 0xfc0000fa
/sys/kernel/debug/usb/xhci/0000:03:00.0/reg-cap:HCSPARAMS2 = 0xfc000031
/sys/kernel/debug/usb/xhci/0000:04:00.0/reg-cap:HCSPARAMS2 = 0x00000011
See xHCI section 5.3.4. If IST is high, you are probably out of luck.
next prev parent reply other threads:[~2024-08-25 15:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-18 20:56 Misbehaving Alder Lake-N PCH USB 3.2 xHCI Host Controller FPS
2024-08-19 13:38 ` Mathias Nyman
2024-08-19 20:12 ` FPS
2024-08-20 11:01 ` Michał Pecio
2024-08-20 21:04 ` FPS
2024-08-21 13:02 ` Michał Pecio
2024-08-21 13:46 ` fps
2024-08-21 14:15 ` Mathias Nyman
2024-08-21 16:49 ` Michał Pecio
2024-08-23 11:43 ` FPS
2024-08-24 21:22 ` FPS
2024-08-25 4:58 ` Michał Pecio
2024-08-25 7:46 ` fps
2024-08-25 15:15 ` Michał Pecio [this message]
2024-08-25 20:38 ` FPS
2024-08-27 10:30 ` FPS
2024-08-27 11:31 ` Mathias Nyman
2024-08-27 12:18 ` FPS
2024-08-27 13:49 ` Mathias Nyman
2024-08-27 12:37 ` Mathias Nyman
2024-08-28 9:15 ` FPS
2024-08-27 12:38 ` Mathias Nyman
2024-08-27 20:49 ` FPS
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