From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 47E16C433EF for ; Mon, 30 May 2022 13:24:36 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id CBE2A81D0B; Mon, 30 May 2022 13:24:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MEOcQoMLXTJr; Mon, 30 May 2022 13:24:35 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp1.osuosl.org (Postfix) with ESMTPS id AE08B83FC3; Mon, 30 May 2022 13:24:34 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 68424C0039; Mon, 30 May 2022 13:24:34 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 886A9C002D for ; Mon, 30 May 2022 13:24:33 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 7026741A04 for ; Mon, 30 May 2022 13:24:33 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp4.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=kernel.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9ScdOkY4_fNr for ; Mon, 30 May 2022 13:24:32 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by smtp4.osuosl.org (Postfix) with ESMTPS id 49D8B41A21 for ; Mon, 30 May 2022 13:24:32 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 83E8FB80DA7; Mon, 30 May 2022 13:24:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17BABC385B8; Mon, 30 May 2022 13:24:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653917068; bh=v6STE/M7umHmQhXZl5W6Am/3Zz1pQY0LUnmLP5HuXO8=; h=From:To:Cc:Subject:Date:From; b=PSH1Y5HK/smNoPMvz4Yg5A+BFRA46DwGlSgwBfM3AVYTZulg5alVgvdbLn03ROotT hDZrojGNubPP8GSMntc1dji17j4hszFJ/ctOsRpD022Gn29DTLkuxyNMAExaWXvQW8 6W7XYfYWklKlXoK/So3Xubh5/LA+xxjO43TxBMoFLHePf42+2CtTity04YMG3+Lkp8 GseBofE6XQWSSYQDpjXlRVfTvL7dgyRKUSpS4tEO0heFlH6LJ8t5wNckMoJO3T7b+c HlH31PfRdhiNp03k89eJWrH5IyuBkwP7jK3NPK52WVdFllnCmat01RrzUgWAaK/NUG A/eLeVeCA20Ww== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.18 001/159] iommu/vt-d: Add RPLS to quirk list to skip TE disabling Date: Mon, 30 May 2022 09:21:46 -0400 Message-Id: <20220530132425.1929512-1-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Cc: Sasha Levin , Raviteja Goud Talla , will@kernel.org, iommu@lists.linux-foundation.org, Rodrigo Vivi , Tejas Upadhyay , dwmw2@infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" From: Tejas Upadhyay [ Upstream commit 0a967f5bfd9134b89681cae58deb222e20840e76 ] The VT-d spec requires (10.4.4 Global Command Register, TE field) that: Hardware implementations supporting DMA draining must drain any in-flight DMA read/write requests queued within the Root-Complex before completing the translation enable command and reflecting the status of the command through the TES field in the Global Status register. Unfortunately, some integrated graphic devices fail to do so after some kind of power state transition. As the result, the system might stuck in iommu_disable_translati on(), waiting for the completion of TE transition. This adds RPLS to a quirk list for those devices and skips TE disabling if the qurik hits. Link: https://gitlab.freedesktop.org/drm/intel/-/issues/4898 Tested-by: Raviteja Goud Talla Cc: Rodrigo Vivi Acked-by: Lu Baolu Signed-off-by: Tejas Upadhyay Reviewed-by: Rodrigo Vivi Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20220302043256.191529-1-tejaskumarx.surendrakumar.upadhyay@intel.com Signed-off-by: Sasha Levin --- drivers/iommu/intel/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 0ea47e17b379..ba9a63cac47c 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -5031,7 +5031,7 @@ static void quirk_igfx_skip_te_disable(struct pci_dev *dev) ver = (dev->device >> 8) & 0xff; if (ver != 0x45 && ver != 0x46 && ver != 0x4c && ver != 0x4e && ver != 0x8a && ver != 0x98 && - ver != 0x9a) + ver != 0x9a && ver != 0xa7) return; if (risky_device(dev)) -- 2.35.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu