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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF823C433EF for ; Sun, 8 Sep 2019 12:58:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A9D12081B for ; Sun, 8 Sep 2019 12:58:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567947485; bh=nwkRrgxWKfz0mUWoAEQETgxxEmFC+2XRWGejen9Xk1s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ivv9ol0JkMMfsSHvJ9ZTVH2YiUPeUSt2XkiiUqNy2aFUVHyKw6rvXwPpnJkYwvRCj KcvN++9/w2Wk8TQLrfI/79OdnRDUrx/VSV3dGkT5ct2/+p1rzcSVJYz3pDA95XPZ98 XxDafdCV51WUa5Qq9ODVm5G1LTxBlQFH88PbsAeo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730701AbfIHMrb (ORCPT ); Sun, 8 Sep 2019 08:47:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:35890 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730694AbfIHMra (ORCPT ); Sun, 8 Sep 2019 08:47:30 -0400 Received: from localhost (unknown [62.28.240.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7038C218AF; Sun, 8 Sep 2019 12:47:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567946850; bh=nwkRrgxWKfz0mUWoAEQETgxxEmFC+2XRWGejen9Xk1s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eXQe9hrDbDeEqIqOixZKcopyy8RVc7OCNZmYOtgoLE5pqeqyKNGNCEald9gudq5jz zWp990Ud0gZPX01EUliwBzDFx9VIoVwVvGKhIMsShGVh4mIpRKrX9q/9CEd5UTarmO PDmpEmC9Aedh9Aec+M/7L4TxncbyDAjogZ8ul8ok= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexandre Courbot , CK Hu , Sasha Levin Subject: [PATCH 4.19 23/57] drm/mediatek: use correct device to import PRIME buffers Date: Sun, 8 Sep 2019 13:41:47 +0100 Message-Id: <20190908121134.861158277@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190908121125.608195329@linuxfoundation.org> References: <20190908121125.608195329@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 4c6f3196e6ea111c456c6086dc3f57d4706b0b2d ] PRIME buffers should be imported using the DMA device. To this end, use a custom import function that mimics drm_gem_prime_import_dev(), but passes the correct device. Fixes: 119f5173628aa ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Alexandre Courbot Signed-off-by: CK Hu Signed-off-by: Sasha Levin --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index fd83046d8376b..ffb997440851d 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -327,6 +327,18 @@ static const struct file_operations mtk_drm_fops = { .compat_ioctl = drm_compat_ioctl, }; +/* + * We need to override this because the device used to import the memory is + * not dev->dev, as drm_gem_prime_import() expects. + */ +struct drm_gem_object *mtk_drm_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf) +{ + struct mtk_drm_private *private = dev->dev_private; + + return drm_gem_prime_import_dev(dev, dma_buf, private->dma_dev); +} + static struct drm_driver mtk_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, @@ -338,7 +350,7 @@ static struct drm_driver mtk_drm_driver = { .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_export = drm_gem_prime_export, - .gem_prime_import = drm_gem_prime_import, + .gem_prime_import = mtk_drm_gem_prime_import, .gem_prime_get_sg_table = mtk_gem_prime_get_sg_table, .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table, .gem_prime_mmap = mtk_drm_gem_mmap_buf, -- 2.20.1