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 25E181FBCBE; Tue, 28 Jan 2025 17:54:53 +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=1738086893; cv=none; b=kbImQ2Qd4OSdq5bgvW2KqF76LfcQwHk34rhkT/9xpx6PnY+uRO3OLZ0sS2DOms6U1os1FencDnCVqktbCGETgUpqDO42km600ppmzH2bCd0Z/VFFRNwmdmZa9fVBLFY+W1cX0fJ4dTAoXhUfrO1F+Et0tpdkm/yBk0QoTXUVDzE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738086893; c=relaxed/simple; bh=TzBwCX9j17IM44q2shCYjPrak6BigKhiP3Yk9p0LNXo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=BBiTIFqfLq3qkeQL85jFPyFAqaiLFo4e2bOi8BFM4HOZzym4U+exfpTH7v4/l99CCBYRg+HlNutl0yqaVdeTyKxHYXpXSQP+mVzmgi0guY372knRvK3wFIufAfvxDym48RsDq4C4kMk5dZqC7DhEfBFUqlwKrU7+mt+UoNDAiuM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PfPg+fjY; 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="PfPg+fjY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25529C4AF09; Tue, 28 Jan 2025 17:54:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738086893; bh=TzBwCX9j17IM44q2shCYjPrak6BigKhiP3Yk9p0LNXo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PfPg+fjYUMSoVvmpPDVlwxEwM3m6FjgC34WPZ6xfYmXpS02iEG/uyNMTwtOaOd3mT ygVo5pwecl1g0wZLU0eKecVRlWHxaE8JNhwecEH58NLmNrDiSydKI8FlIAbRKQffN+ F6Xl5B8TY0Er5FXw7WpdMLfdYj2EB/KaNkel2wZ7YC/k8H2Xfrvu75e42wVWz/lVO+ ocQCLd8vVo64dDLvz7N5eO2BPh/9YLCiue07xnQQLVwAJTxF/idfQphJJp3gfSCay9 xGLfnSjo/Mzo30jqyF5iP+kP7V2zSanGQ9q1EDgBJOJdIb7wqfwsh+oSUozCFsH86a Ftnm7K2vSBhzw== 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 6.6 10/11] PCI/DPC: Quirk PIO log size for Intel Raptor Lake-P Date: Tue, 28 Jan 2025 12:54:34 -0500 Message-Id: <20250128175435.1197457-10-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250128175435.1197457-1-sashal@kernel.org> References: <20250128175435.1197457-1-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 6.6.74 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 fd35ad0648a07..a256928fb126c 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -6247,6 +6247,7 @@ 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