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=1794346388; b=qvtTOsGr94/RNFBcdwJ3B9D3cMvbsXw8VIkwyCesEDJN0X/VJn065n9ZqgYUgw3L4PKO WeuMpvPykFEiXrL+57OEJQxzn9ZskrIGEoNVwsR0R1W5/HdiGv7ZeVU5fFIZ0jK9/ljEA uQ72piM6he9HQxdpVjj9ILoPkV3HNNquIvnMDJ4bPeGYVpIJBnM5zi84VBk6KfldCegO0 6spZeCltRNlM5KqSnSFLKYEFGQu94P0hQjxFnl3d8NMcnp46VKL5G/LfgtT7BhVPlwKoA TCAhKYNBi1g+mwYTN5LFBRhkUEEOE6vGSIgQ7s7kUr2S8uQQkcAMVhpCH5jLs2OsH3w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794346388; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=6Tso9LucsI7B+YNUO/MQhpbO0rviXNPtqkB5W/dZd84=; b=RVoOsYFFRo50INaAE0jzcg9525rhZaJcUHZfLMXToxFM8DAuCzKhYQ+McPSLTqMmFE36 QfWQzmFG0gRrJAwRQXZ8q0XUSyOOII6BbCg+2+r2/66pBUtlMTZavbJjDy7/h/1HBnow1 V+pN4iOLdXJF36pLUbncWFO1JusawL9+BpqJe6PcxhujpK5yitt0f6R9JQnSTHUFC3AOJ 5s0b7VLXQ8zX2SBgi8kZ92JelYjFAQpJbnOqTfLZjAU2HVU0SNLc1Gtfml8uN7M1JeZdr dsPHpARyYz1GvaDkt/DroIccDEtXvda8NXaxGPwNOjkcO8HiTyLxFe3CuK+xEsNElwQ== 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=kTd8PXSJ; 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 68092606A31C for ; Tue, 10 Nov 2026 21:33:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=kTd8PXSJ Received: by smtp.kernel.org (Postfix) with ESMTPSA id C4B911F008A1; Tue, 10 Nov 2026 21:33:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794346387; bh=6Tso9LucsI7B+YNUO/MQhpbO0rviXNPtqkB5W/dZd84=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=kTd8PXSJWNyakB/sS8LW9oxOfaLhnDrqRROdN143AUun28+yEOa8yqrtxoeIIZJso wT+iXnml4dA+fl3QSFbyEylPpDM8tqTsvu1p/WSU0xn3s13tFMDfNjJcnDit36PS2L GHbV55E5bpy72vXuROp5X0fLIjilYycQrQWDKmUMMCfPNtqxos0vU9CAeqVVAFQxCo lQRSTy+LnKCmMcB98TCUADYSBXKQnTsJWcQdnsJmJBVdM5ToZRtcHkyD6YbOIw1sbG HaNWsZzyLVTQMY/9lQKkWuO75BP9OudYwGnt8s2ggkAcft1ukp4cZJyr/7SB7YOYLc OjUnxS7Ai5w3g== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v4] 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: <20261110-broken-gpe-legion-v4-1-3668ce0c2efd@gmail.com> References: <20261110-broken-gpe-legion-v4-1-3668ce0c2efd@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 10 Nov 2026 21:33:07 +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/20261110-broken-gpe= -legion-v4-1-3668ce0c2efd@gmail.com?part=3D1