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 D93111FFC56; Tue, 28 Jan 2025 17:55:09 +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=1738086909; cv=none; b=gCC6V/ud6M0rBVrYEGkfHFG/tI+3eU8hfTQ2INIXSvB0b6gPQMymR7GEqH/xynjTCSWXW1I8PUQeAW1CdRadrUGjTlELFXKile0HVBEsaaEkdgFp2aAe41sFYogrUxwjc+pXq72wyj3M2myrfSHd85D7NL8v0oYi825Yz+ECr0U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738086909; c=relaxed/simple; bh=SKWaARZIH6yZcoMUHUSbOouic7bxx1Ltj5a8tIdbqf0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=vBm3LCyjo+wAF+FlvC9cmXpbQeuXQ3ySUQ2aZcY4Y/m+MKc+B4sJMzpgKQC2xVL1+j2I05e8rbWtb3XC56Sw8YaPV+k+q+jhHIKGR463ifB5zu/0zWrfKBNT2pZvWZ6rCTyctL86msApHIln7lqiSwmbGNPQMANSXrsAOtrXBBQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=e8spWj4Q; 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="e8spWj4Q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E7BEEC4CEE1; Tue, 28 Jan 2025 17:55:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738086909; bh=SKWaARZIH6yZcoMUHUSbOouic7bxx1Ltj5a8tIdbqf0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e8spWj4QtUjhQF1U1y+bmJyRDQvxUBVqrWUVZUPTaE+Jn3nwJ1GaWGtHV7gq7IFr6 cSKzkaPLlcCH12DwrHBxGGzslM47IEhNiObuUQQygyQxRpzUHgzVJm+4d5txNJP+PI YtFNpXzpygVJfrOKoor77tOZhu7w1y5P8p44qYqbXiaiztMaGW1hpHryFqSpUmbWFQ QO/XTWFtb5sBxaGzPWMQe9BE0+9AqDqWoAKQJGvZHntAp2MOdYUGDSNUdIXrT3ZGh3 ZCoOhjq3kN1/74qErWh0xVjDpJkCT2PZ6xqQZWpHxTIyQ3jJ4JidJT7jK/thkl24Of 4QyxEsMTGP9wA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Takashi Iwai , Bjorn Helgaas , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 3/3] PCI/DPC: Quirk PIO log size for Intel Raptor Lake-P Date: Tue, 28 Jan 2025 12:55:04 -0500 Message-Id: <20250128175504.1197685-3-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250128175504.1197685-1-sashal@kernel.org> References: <20250128175504.1197685-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.177 Content-Transfer-Encoding: 8bit From: Takashi Iwai [ Upstream commit b198499c7d2508a76243b98e7cca992f6fd2b7f7 ] Apparently the Raptor Lake-P reference firmware configures the PIO log size correctly, but some vendor BIOSes, including at least ASUSTeK COMPUTER INC. Zenbook UX3402VA_UX3402VA, do not. Apply the quirk for Raptor Lake-P. This prevents kernel complaints like: DPC: RP PIO log size 0 is invalid and also enables the DPC driver to dump the RP PIO Log registers when DPC is triggered. Note that the bug report also mentions 8086:a76e, which has been already added by 627c6db20703 ("PCI/DPC: Quirk PIO log size for Intel Raptor Lake Root Ports"). Link: https://lore.kernel.org/r/20250102164315.7562-1-tiwai@suse.de Link: https://bugzilla.suse.com/show_bug.cgi?id=1234623 Signed-off-by: Takashi Iwai [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas Signed-off-by: Krzysztof Wilczyński Signed-off-by: Sasha Levin --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 24fde99c11a70..a1f85120f97e6 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -6005,6 +6005,7 @@ 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, 0xa72f, 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 -- 2.39.5