From nobody Mon Sep 29 21:22:40 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99BA7C00140 for ; Mon, 15 Aug 2022 22:14:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244526AbiHOWOK (ORCPT ); Mon, 15 Aug 2022 18:14:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349882AbiHOWLr (ORCPT ); Mon, 15 Aug 2022 18:11:47 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 762C511BB27; Mon, 15 Aug 2022 12:38:50 -0700 (PDT) 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 EB08EB80EA8; Mon, 15 Aug 2022 19:38:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 324E1C433C1; Mon, 15 Aug 2022 19:38:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660592328; bh=z5P5iOpHw9o5eHJmvlNNQbVx8HFSYja93QJ6343QSNw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=q/GPsx9dMtMOZ0Nfqv1Fe6wLN6j6Vd4zldiPJ0LC6XJkCELWb66YoIE1WqulnReIi jnN/SdCJh9qWW9aQSaEh+uXbuB90od8JKS/zl+ie0LlV1VHb76l+C64kU4sIFip5sj 5C/QvwaguwkkyARzNE74Us2AnzyFpFdCSJDCbvug= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Leo Li , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= Subject: [PATCH 5.19 0094/1157] drm/amdgpu: Check BOs requested pinning domains against its preferred_domains Date: Mon, 15 Aug 2022 19:50:50 +0200 Message-Id: <20220815180443.367402744@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Leo Li commit f5ba14043621f4afdf3ad5f92ee2d8dbebbe4340 upstream. When pinning a buffer, we should check to see if there are any additional restrictions imposed by bo->preferred_domains. This will prevent the BO from being moved to an invalid domain when pinning. For example, this can happen if the user requests to create a BO in GTT domain for display scanout. amdgpu_dm will allow pinning to either VRAM or GTT domains, since DCN can scanout from either or. However, in amdgpu_bo_pin_restricted(), pinning to VRAM is preferred if there is adequate carveout. This can lead to pinning to VRAM despite the user requesting GTT placement for the BO. v2: Allow the kernel to override the domain, which can happen when exporting a BO to a V4L camera (for example). Signed-off-by: Leo Li Reviewed-by: Alex Deucher Reviewed-by: Christian K=C3=B6nig Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -882,6 +882,10 @@ int amdgpu_bo_pin_restricted(struct amdg if (WARN_ON_ONCE(min_offset > max_offset)) return -EINVAL; =20 + /* Check domain to be pinned to against preferred domains */ + if (bo->preferred_domains & domain) + domain =3D bo->preferred_domains & domain; + /* A shared bo cannot be migrated to VRAM */ if (bo->tbo.base.import_attach) { if (domain & AMDGPU_GEM_DOMAIN_GTT)