Message ID | 20240823154023.360234-1-superm1@kernel.org (mailing list archive) |
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Headers | show
Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED84E18BBA3; Fri, 23 Aug 2024 15:40:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724427635; cv=none; b=MfVunWSm1veekdIbeIZa7l3x6AEWyJ/kOLb0yV79k4/QnqRVs31EzMDs6bi9qmR+JiY57b6Bv+Vo3TLtGxZ3+jWVHTlELK4weYr0/uliADYmRjDIZ0dNBm3ul66i8/6i0pFn3cA/oYnx/7FvyI2O+zN4LZUGJnQyetMBjFUaPcI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724427635; c=relaxed/simple; bh=aLi9/+U9UkyqRo2wj4MKMZZy1G9ZHIG2P3x0xO+c+5k=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=posV3Yp22eb2yQYRSEXUlGJRKWPmOTddUEz2X34l0hLAwcQmBIdwzcaq3VC/Yu5oKLp9xFMFdXelpBom1tdMqC9JLbXCzWj+j67Cu0GJoZy9CHKUnLdQ56rFaFHgoHYgpy5L8P52/vOEocBD2tzD39g5dtneCbjfCJnPJuKj0cw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BD0DVQNQ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BD0DVQNQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4EE5DC4AF09; Fri, 23 Aug 2024 15:40:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724427634; bh=aLi9/+U9UkyqRo2wj4MKMZZy1G9ZHIG2P3x0xO+c+5k=; h=From:To:Cc:Subject:Date:From; b=BD0DVQNQOdWGI7ho2gjkVx/ZJFzkeFw6+2FxImPslce+Gu2z6oO+39vgf/oKiIm8v 2YtVm2alVPCVMYBJzT1fdxiwyH4tHMFdbSF43SWM35Vkm/fGD1h1/DWr209tk6evOZ AUa+aGXUfmNuTg028hjovZiBi9mwVUnQDHAZHPdp9MyXfcCi9WqpKycwTegQR0fR4m 1gd3CScwi/DTU526RuC5rObR+vNA6VvZ+ameg0qQIfN0Qu83Ssl2o8pLLT4uPszGpB +k2QIZZu8OsIWGWMysiMKGKT1Ns5/jnC7VRaiK9txEOj7oGjFLt39/xFZ1L/d3/VjS ICXvkaHeqf7sQ== From: Mario Limonciello <superm1@kernel.org> To: Bjorn Helgaas <bhelgaas@google.com>, Mathias Nyman <mathias.nyman@intel.com>, Mika Westerberg <mika.westerberg@linux.intel.com> Cc: "open list : PCI SUBSYSTEM" <linux-pci@vger.kernel.org>, open list <linux-kernel@vger.kernel.org>, "open list : USB XHCI DRIVER" <linux-usb@vger.kernel.org>, Daniel Drake <drake@endlessos.org>, Gary Li <Gary.Li@amd.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, =?utf-8?q?Ilpo_J=C3=A4rvin?= =?utf-8?q?en?= <ilpo.jarvinen@linux.intel.com>, Mario Limonciello <mario.limonciello@amd.com> Subject: [PATCH v5 0/5] Verify devices transition from D3cold to D0 Date: Fri, 23 Aug 2024 10:40:18 -0500 Message-ID: <20240823154023.360234-1-superm1@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: <linux-pci.vger.kernel.org> List-Subscribe: <mailto:linux-pci+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-pci+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit |
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Verify devices transition from D3cold to D0
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From: Mario Limonciello <mario.limonciello@amd.com> Gary has reported that when a dock is plugged into a system at the same time the autosuspend delay has tripped that the USB4 stack malfunctions. Messages show up like this: ``` thunderbolt 0000:e5:00.6: ring_interrupt_active: interrupt for TX ring 0 is already enabled ``` Furthermore the USB4 router is non-functional at this point. Those messages happen because the device is still in D3cold at the time that the PCI core handed control back to the USB4 connection manager (thunderbolt). The issue is that it takes time for a device to enter D3cold and do a conventional reset, and then more time for it to exit D3cold. This appears not to be a new problem; previously there were very similar reports from Ryzen XHCI controllers. Quirks were added for those. Furthermore; adding extra logging it's apparent that other PCI devices in the system can take more than 10ms to recover from D3cold as well. This series add a wait into pci_power_up() specifically for D3cold exit and then drops the quirks that were previously used for the Ryzen XHCI controllers. Mario Limonciello (5): PCI: Use an enum for reset type in pci_dev_wait() PCI: Check PCI_PM_CTRL instead of PCI_COMMAND in pci_dev_wait() PCI: Verify functions currently in D3cold have entered D0 PCI: Allow Ryzen XHCI controllers into D3cold and drop delays PCI: Drop Radeon quirk for Macbook Pro 8.2 drivers/pci/pci-driver.c | 2 +- drivers/pci/pci.c | 70 +++++++++++++++++++++++++++---------- drivers/pci/pci.h | 13 ++++++- drivers/pci/pcie/dpc.c | 2 +- drivers/pci/quirks.c | 25 ------------- drivers/usb/host/xhci-pci.c | 11 ------ 6 files changed, 66 insertions(+), 57 deletions(-)