From nobody Fri Dec 19 20:53:12 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 9A2A8C32772 for ; Tue, 23 Aug 2022 09:32:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350683AbiHWJce (ORCPT ); Tue, 23 Aug 2022 05:32:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350932AbiHWJbC (ORCPT ); Tue, 23 Aug 2022 05:31:02 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A443923FB; Tue, 23 Aug 2022 01:38:06 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 06727614E9; Tue, 23 Aug 2022 08:36:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0B3FDC433C1; Tue, 23 Aug 2022 08:36:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1661243810; bh=sAdOeYBAPi9CerLXn7XWAIKEmLZgLjt+4p7AzfjIoMk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q5dUJ/SwQCcvuDq0GWdJohR461JN/SvMld572MgP4VKfct5aapXYXLTWl9nQHYJtI ks6BxHynsSNILUzLxSV1CJ0fFSQcKOCBvJZ8hRlDcxJvpwCQWTEtEyGvY3XCr7/Bhn 5tkkOCtdKHclG4wR1SS4RdSjKbqXsp3DDJ114VUI= 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 4.14 028/229] drm/amdgpu: Check BOs requested pinning domains against its preferred_domains Date: Tue, 23 Aug 2022 10:23:09 +0200 Message-Id: <20220823080054.483979397@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220823080053.202747790@linuxfoundation.org> References: <20220823080053.202747790@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 @@ -682,6 +682,10 @@ 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->prime_shared_count) { if (domain & AMDGPU_GEM_DOMAIN_GTT)