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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 874BBC28D15 for ; Tue, 16 Nov 2021 01:02:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 73E5263257 for ; Tue, 16 Nov 2021 01:02:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349815AbhKPBDg (ORCPT ); Mon, 15 Nov 2021 20:03:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:44634 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245733AbhKOTVF (ORCPT ); Mon, 15 Nov 2021 14:21:05 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id D8CC363288; Mon, 15 Nov 2021 18:40:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637001616; bh=nnoI8PKTNJPb58Rsneu+k3K8BYiYVFKucbDiQSgEg9c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aieq6oJk3efVrELkxoJJBIjQcjU00eUZr30OT3MvAKm1ly4bSxu0ujQqwwI7IJpBq hXU7G9M5bcAdtT+ut94GWpmaH6zWO7QKz//BCJo/Cif27NLj9U8OTgBpgnmbq8jWt/ 5niGbw9fGKPSUK4pRPo92j0oCQAfxcamLh7cM6Jc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, youling , Yifan Zhang , James Zhu , Alex Deucher , Sasha Levin Subject: [PATCH 5.15 257/917] drm/amdkfd: fix resume error when iommu disabled in Picasso Date: Mon, 15 Nov 2021 17:55:52 +0100 Message-Id: <20211115165437.509025737@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165428.722074685@linuxfoundation.org> References: <20211115165428.722074685@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yifan Zhang [ Upstream commit 6f4b590aae217da16cfa44039a2abcfb209137ab ] When IOMMU disabled in sbios and kfd in iommuv2 path, IOMMU resume failure blocks system resume. Don't allow kfd to use iommu v2 when iommu is disabled. Reported-by: youling Tested-by: youling Signed-off-by: Yifan Zhang Reviewed-by: James Zhu Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index a6afacc3b10cd..88c483f699894 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -916,6 +916,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, kfd_double_confirm_iommu_support(kfd); if (kfd_iommu_device_init(kfd)) { + kfd->use_iommu_v2 = false; dev_err(kfd_device, "Error initializing iommuv2\n"); goto device_iommu_error; } -- 2.33.0