From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792609571; b=UYGyTdjhj43Mt/ij3YpW147XD5j8p3iRIIsLsMJ50xJea8AZ2Ghyv9yIXA8pBMym0xwH TCtyfW2avU9Qt1VJXF+z4ijE9ef80YoVLZBUCUB36FJkLo5f9g+fBEOGAjINed49EZ6ZF Qmrj3dp+6WeA2ee6ps3kgzZJjFOx6/3IG5ZUbG+ZdtIcoeX5S1AiyYifjGqSFRRtIwICw qaWxnne1aae5iEK8QmmoTx4Ff6WINn5JNlhZ0Pea11KVqkWfc8Z1Wibf2BWWlAAchEAu1 r0Z3XUsNU69t4JO+VMytymDJO7GmMFQY0lZRmIy/QzmUM9ZhV864e2VMWjhmGIunLug== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792609571; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=aiF8VK8Jh90E+el9vWXCuarh5jerR0iSSLHNb4OSvVQ=; b=CvzmZuDUTT8aCqd6OjvwxKOLq0a7PMrFsWtJVQQh3BcHPxa/VlCPkJeB5OGc6rok+gSM 0AL6kiPT+1Sk14O8wd0d6RsI2ljhNevNjC0UgM7qKBgnVrXzTh2b0vmluhbUKxiPy2HSz B3rrpEG5oqPgyU5jbg2TOsIFnxpMnNLrBVoLVBOvVsXVcUEiPHB2MXvAjWBn2vk2iqG1R Th7jt0i0pybRt/Yn6VLr6eQMsPXokR4l17vv+sXSVuqr16KUzPVSfR+qaccE9DaTl/CN1 fT75kAEaVGWGPivIVlYCSVT4DhbsLTB3a25DS4Ygu1gTvjburUhubXNBa6i59yjvTjA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="motK/hnT"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8BCAB606A31B for ; Wed, 21 Oct 2026 19:06:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=motK/hnT Received: by smtp.kernel.org (Postfix) with ESMTPSA id E84C11F000C1; Wed, 21 Oct 2026 19:06:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792609571; bh=aiF8VK8Jh90E+el9vWXCuarh5jerR0iSSLHNb4OSvVQ=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=motK/hnTbXIWDOLZ1bgVMFL7MqbmZUczuBoAhsUURgddO2UW+NzArQR7QEND7BNNS FY8O5dgwS0bMpSoEsHWg+Y9wS8tAV0e2G6QyWpXAumWN0AAA2E2D8TVr1EDrwPaTBJ lxh+y8XGo8tFyyIC4G8tgQR3X1jKLhazM4K6w5Duf2iPem5gTbzoETQmxF1XLkkAyT jJSYiscWjiJm8m8otCbBQHw/dtWqnnOZnLroEue7RmUjcFjopbHd67NNKMT8PLCQQb wZjkhUAsLPi1IRaRN7rn+Ks6UFxHnqEXeperYJyHV98N5e5xqPUCxwuyMF3n+/rEDm P83F3vYZdMukA== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RESEND v3] pci: Add broken-GPE quirk for some Lenovo Legions with Nvidia GPUs Reply-To: sashiko-reviews@lists.linux.dev To: "Ryan Brue" Cc: linux-pci@vger.kernel.org In-Reply-To: <20261021-broken-gpe-legion-v3-1-097226ba8383@gmail.com> References: <20261021-broken-gpe-legion-v3-1-097226ba8383@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Wed, 21 Oct 2026 19:06:10 +0000 X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > From: Lyude Paul >=20 > On certain Lenovo Legion devices (including the 16APH8, 16AHP9, and > 15AHP9), the firmware appears to enjoy firing a GPE on the parent PCIe > port of the nvidia GPU very shortly after the GPU enters D3Cold. This mea= ns > that every time the GPU is runtime suspended, ACPI firmware immediately > wakes up its parent PCIe port, which then wakes up the GPU. Once it falls > asleep again, the cycle repeats. >=20 > Note, this bug doesn't require Nvidia's driver. It happens on nouveau and > nova as well, and it even seems possible for this to happen without any > driver loaded. >=20 > This seems to simply be a bug. Luckily, there is nothing that we actually > need ACPI wakeup events for on the GPU. Events such as display connector > hotplug events in D3Cold come through as ACPI_VIDEO events which aren't > affected by this quirk. >=20 > Reported-by: Ryan Brue > Link: https://github.com/NVIDIA/open-gpu-kernel-modules/issues/905 > Co-developed-by: Ryan Brue > Signed-off-by: Ryan Brue > Signed-off-by: Lyude Paul Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261021-broken-gpe= -legion-v3-1-097226ba8383@gmail.com?part=3D1