From mboxrd@z Thu Jan 1 00:00:00 1970 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 43B8C43AD6; Mon, 1 Apr 2024 15:55:23 +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=1711986923; cv=none; b=Q22rxjH38dMLn7cX0qGrtK9WN9qHaOomEikO/ml8D1zpY5tddOHJaDDrElkRZkecwPJzqXUO6Rh4/2WBElIYgNNM9ytupFBZcNIfYFgzGxx+RDeOrcgY9G/+blnegTXlyYtEi+t0pJ2trUpF7XSsweyLoUZO+O+xsizlLoiSUEg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711986923; c=relaxed/simple; bh=jIJcqK2paRrp3IMMQVr6a1O3W5ODM+bQaZt138QsjlI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QM26n0XbM3T3kmJmL6P9ZV3mECA8GlfUp85Jeqp+MGcLtLzbmscT6bo6WTMbgiLXi56a+32yX1a8GaPhAon/6Q5liCJpLiuwxDhGM64LSeiS0ATm29cDduPZUXnXmUaIXKnkIgI9wxt8ouAs8YX0ZsMDjlsiMd2Josbls7RIJ2k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Z7CUGnyg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Z7CUGnyg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE017C43399; Mon, 1 Apr 2024 15:55:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1711986923; bh=jIJcqK2paRrp3IMMQVr6a1O3W5ODM+bQaZt138QsjlI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z7CUGnyg+SAW5fDpD92kh3emUJ8/CHKWir+lA7q2jaS6iv671OZHJWo1k/V8TGeOJ VAQdORfWAVlivYLWZyWl8lBlnyy4vlo35aIfMT7ZvuiyiECM6llfFE+7F66bGnC5eW lCkfQW8HslvQCKAug4EkzGTBd1A/Vnz7dzql2c4s= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Niels van Aert , Paul Menzel , Bjorn Helgaas , Mika Westerberg , Sasha Levin Subject: [PATCH 6.8 101/399] PCI/DPC: Quirk PIO log size for Intel Raptor Lake Root Ports Date: Mon, 1 Apr 2024 17:41:07 +0200 Message-ID: <20240401152552.200123700@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240401152549.131030308@linuxfoundation.org> References: <20240401152549.131030308@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paul Menzel [ Upstream commit 627c6db20703b5d18d928464f411d0d4ec327508 ] Commit 5459c0b70467 ("PCI/DPC: Quirk PIO log size for certain Intel Root Ports") and commit 3b8803494a06 ("PCI/DPC: Quirk PIO log size for Intel Ice Lake Root Ports") add quirks for Ice, Tiger and Alder Lake Root Ports. System firmware for Raptor Lake still has the bug, so Linux logs the warning below on several Raptor Lake systems like Dell Precision 3581 with Intel Raptor Lake processor (0W18NX) system firmware/BIOS version 1.10.1. pci 0000:00:07.0: [8086:a76e] type 01 class 0x060400 pci 0000:00:07.0: DPC: RP PIO log size 0 is invalid pci 0000:00:07.1: [8086:a73f] type 01 class 0x060400 pci 0000:00:07.1: DPC: RP PIO log size 0 is invalid Apply the quirk for Raptor Lake Root Ports as well. This also enables the DPC driver to dump the RP PIO Log registers when DPC is triggered. Link: https://lore.kernel.org/r/20240305113057.56468-1-pmenzel@molgen.mpg.de Reported-by: Niels van Aert Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218560 Signed-off-by: Paul Menzel Signed-off-by: Bjorn Helgaas Cc: Cc: Mika Westerberg Cc: Niels van Aert Signed-off-by: Sasha Levin --- drivers/pci/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 2ebbe51a7efe0..eff7f5df08e27 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -6226,6 +6226,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2b, dpc_log_size); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2d, dpc_log_size); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2f, dpc_log_size); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a31, dpc_log_size); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa73f, dpc_log_size); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa76e, dpc_log_size); #endif /* -- 2.43.0