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Tue, 12 May 2020 09:01:15 +0000 (GMT) From: Marek Szyprowski To: dri-devel@lists.freedesktop.org, iommu@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org Cc: Marek Szyprowski , Christoph Hellwig , Robin Murphy , Bartlomiej Zolnierkiewicz , linux-arm-kernel@lists.infradead.org, David Airlie , Daniel Vetter , Matthias Brugger , Chun-Kuang Hu , Philipp Zabel , linux-mediatek@lists.infradead.org Subject: [PATCH v4 15/38] drm: mediatek: use common helper for extracting pages array Date: Tue, 12 May 2020 11:00:35 +0200 Message-Id: <20200512090058.14910-15-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200512090058.14910-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0WSa0hTYRjHe885Ozsup6dp+GKaNTJIzEsKHVDEIOQIfrAsLCV15kElp7Kp ZYR5S21qlgMTkRILTZ3XzHQa5kg3MWWpeSGvTYJEs7wstJptnlnffs/vef48Dy8vgQo0HHsi PjGFkSSKEoQ4D+sY2B45PcMoIzyG5Yep4pFBhGotb+ZQ1cXFGLXb8QilxrfWcKquoR+hqnp9 qM3xRYRq001wqDFlJU6N5XwAVOO7WS6VnetFzc5pMKrv+xLH35pWPFEA+o2+CqO7Kma5dFv9 fZx+rV/g0POFaoR++fwu/cmgQ2n5VC2gu6czcbrkjwf9oL0e0BttR4P5YTzfGCYhPo2RuPtF 8eIWxn7gyZUHbw1/04FMoLSQAQsCkt6wZroMlwEeISBfAKjK2uCwxSaAv4Y/I2yxAeBGzSR3 P6JRdWJsoxbAPv0KZmrsRVoWTpgYJz2hbFWGm9iWvAegptjSFEDJHhRWK3f2AjZkKNSuLaEm xkhnmDe5gpiYT/rBwRKleZsTbGh5uzdjYfTzT39jrJ/jwoV8wPJ52N08ZJ63gcvqdjM7wCF5 0d6lkMwBcHGkkcsWRQCOZZeb0z5wZmTHeCphPO8UbFa6s/ocfF+bj5k0JK3g1Oohk0aNWNrx GGU1HxbkCdjpk7BC3fRvbZ92FGWZhjmrrebH6gdQ8VODPQROFf+XVQFQD+yYVKk4lpF6JjI3 3aQisTQ1MdbtepK4DRj/15BBvd4JtkajVYAkgNCSX3CmK0LAEaVJ08UqAAlUaMvPjTcqfowo /TYjSYqUpCYwUhU4QmBCO75X9ddrAjJWlMLcYJhkRrLfRQgL+0wgX1dGh2HySsO2VsEUOQYF gaDtWkOga5Om1cen32Eg6dXFqIkQSel6ry78yqWsCl00L2OuLBySNaFp2q7uLNT52W4wepbx DYoMLjywNR/oKNy+YHDNyF4O+BhXqa1LDmkduqqIdrEuuzw6afVFf0zsr+5BLO8ct0qyS7P3 DhBi0jiRpwsqkYr+AtRYEstbAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNIsWRmVeSWpSXmKPExsVy+t/xu7q3U3fFGZw7bWPRe+4kk8XGGetZ LRb19rJY/N82kdniytf3bBYrVx9lsliw39riy5WHTBabHl9jtbi8aw6bxeXmi4wWa4/cZbdo ajG2uHvvBIvFwQ9PWB34PdbMW8PosffbAhaPnbPusntsWtXJ5rH92wNWj/vdx5k8Ni+p97j9 7zGzx+Qbyxk9dt9sYPPo/2vg0bdlFaPH501yAbxRejZF+aUlqQoZ+cUltkrRhhZGeoaWFnpG JpZ6hsbmsVZGpkr6djYpqTmZZalF+nYJehkPLn9kK5jDXXH23WPGBsZdnF2MnBwSAiYSJw7t YOli5OIQEljKKLH20htmiISMxMlpDawQtrDEn2tdbBBFnxgl3u85CJZgEzCU6HoLkRAR6GSU mNb9kR3EYRY4xiyx8fF7sFHCAqESjd/Ps4HYLAKqEm3X3zCB2LwCdhIn+3exQ6yQl1i94QBY PSdQ/P78PywgtpBAocSjq29ZJjDyLWBkWMUoklpanJueW2ykV5yYW1yal66XnJ+7iREYUduO /dyyg7HrXfAhRgEORiUe3g6jnXFCrIllxZW5hxglOJiVRHhbMoFCvCmJlVWpRfnxRaU5qcWH GE2BjprILCWanA+M9rySeENTQ3MLS0NzY3NjMwslcd4OgYMxQgLpiSWp2ampBalFMH1MHJxS DYzcZ54IKl/4ltzlyN3+c5u4Q9jyy/+d4nWuvNiRzV02a65SkujS8BNNUT0ix5PlV0tfvr/8 QOWpHle5qq6AazOnL7l5LnoKp3VlTM+Tqwvz2JryFyyu2y5yvWNF/MQTVbkTZs89IDR5dWP5 1D/1r3l+R31ReS783HU/e8uHU292rCs48ps94sEPJZbijERDLeai4kQA7bBGYr4CAAA= X-CMS-MailID: 20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f References: <20200512085710.14688-1-m.szyprowski@samsung.com> <20200512090058.14910-1-m.szyprowski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/dri-devel/20200512085710.14688-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 6c34c06..14fcd48 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -233,9 +233,7 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) { struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); struct sg_table *sgt; - struct sg_page_iter iter; unsigned int npages; - unsigned int i = 0; if (mtk_gem->kvaddr) return mtk_gem->kvaddr; @@ -249,11 +247,8 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) if (!mtk_gem->pages) goto out; - for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) { - mtk_gem->pages[i++] = sg_page_iter_page(&iter); - if (i > npages) - break; - } + drm_prime_sg_to_page_addr_arrays(sgt, mtk_gem->pages, NULL, npages); + mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); -- 1.9.1 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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 A462BC54E91 for ; Tue, 12 May 2020 09:01:28 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7A904206A3 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/dri-devel/20200512085710.14688-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 6c34c06..14fcd48 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -233,9 +233,7 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) { struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); struct sg_table *sgt; - struct sg_page_iter iter; unsigned int npages; - unsigned int i = 0; if (mtk_gem->kvaddr) return mtk_gem->kvaddr; @@ -249,11 +247,8 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) if (!mtk_gem->pages) goto out; - for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) { - mtk_gem->pages[i++] = sg_page_iter_page(&iter); - if (i > npages) - break; - } + drm_prime_sg_to_page_addr_arrays(sgt, mtk_gem->pages, NULL, npages); + mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); -- 1.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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=-9.9 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=ham 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 8360AC54E8B for ; Tue, 12 May 2020 09:07:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5433B20714 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/dri-devel/20200512085710.14688-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 6c34c06..14fcd48 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -233,9 +233,7 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) { struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); struct sg_table *sgt; - struct sg_page_iter iter; unsigned int npages; - unsigned int i = 0; if (mtk_gem->kvaddr) return mtk_gem->kvaddr; @@ -249,11 +247,8 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) if (!mtk_gem->pages) goto out; - for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) { - mtk_gem->pages[i++] = sg_page_iter_page(&iter); 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/dri-devel/20200512085710.14688-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 6c34c06..14fcd48 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -233,9 +233,7 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) { struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); struct sg_table *sgt; - struct sg_page_iter iter; unsigned int npages; - unsigned int i = 0; if (mtk_gem->kvaddr) return mtk_gem->kvaddr; @@ -249,11 +247,8 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) if (!mtk_gem->pages) goto out; - for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) { - mtk_gem->pages[i++] = sg_page_iter_page(&iter); - if (i > npages) - break; - } + drm_prime_sg_to_page_addr_arrays(sgt, mtk_gem->pages, NULL, npages); + mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 DB0A1C81851 for ; Tue, 12 May 2020 09:01:41 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AED132082E for ; 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Tue, 12 May 2020 09:01:16 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20200512090116eusmtrp197fa74059f4a4853a6e0110c21fa5b19~OPFoQcF2W0183401834eusmtrp1h; Tue, 12 May 2020 09:01:16 +0000 (GMT) X-AuditID: cbfec7f2-ef1ff7000001ef66-70-5eba65dc5dda Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 87.F2.07950.BD56ABE5; Tue, 12 May 2020 10:01:15 +0100 (BST) Received: from AMDC2765.digital.local (unknown [106.120.51.73]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20200512090115eusmtip1c346d1cf1b9749bd8cbc614d27033b57~OPFnqNbVH1181011810eusmtip1l; Tue, 12 May 2020 09:01:15 +0000 (GMT) From: Marek Szyprowski To: dri-devel@lists.freedesktop.org, iommu@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 15/38] drm: mediatek: use common helper for extracting pages array Date: Tue, 12 May 2020 11:00:35 +0200 Message-Id: <20200512090058.14910-15-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200512090058.14910-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0WSa0hTYRjHe885Ozsup6dp+GKaNTJIzEsKHVDEIOQIfrAsLCV15kElp7Kp ZYR5S21qlgMTkRILTZ3XzHQa5kg3MWWpeSGvTYJEs7wstJptnlnffs/vef48Dy8vgQo0HHsi PjGFkSSKEoQ4D+sY2B45PcMoIzyG5Yep4pFBhGotb+ZQ1cXFGLXb8QilxrfWcKquoR+hqnp9 qM3xRYRq001wqDFlJU6N5XwAVOO7WS6VnetFzc5pMKrv+xLH35pWPFEA+o2+CqO7Kma5dFv9 fZx+rV/g0POFaoR++fwu/cmgQ2n5VC2gu6czcbrkjwf9oL0e0BttR4P5YTzfGCYhPo2RuPtF 8eIWxn7gyZUHbw1/04FMoLSQAQsCkt6wZroMlwEeISBfAKjK2uCwxSaAv4Y/I2yxAeBGzSR3 P6JRdWJsoxbAPv0KZmrsRVoWTpgYJz2hbFWGm9iWvAegptjSFEDJHhRWK3f2AjZkKNSuLaEm xkhnmDe5gpiYT/rBwRKleZsTbGh5uzdjYfTzT39jrJ/jwoV8wPJ52N08ZJ63gcvqdjM7wCF5 0d6lkMwBcHGkkcsWRQCOZZeb0z5wZmTHeCphPO8UbFa6s/ocfF+bj5k0JK3g1Oohk0aNWNrx GGU1HxbkCdjpk7BC3fRvbZ92FGWZhjmrrebH6gdQ8VODPQROFf+XVQFQD+yYVKk4lpF6JjI3 3aQisTQ1MdbtepK4DRj/15BBvd4JtkajVYAkgNCSX3CmK0LAEaVJ08UqAAlUaMvPjTcqfowo /TYjSYqUpCYwUhU4QmBCO75X9ddrAjJWlMLcYJhkRrLfRQgL+0wgX1dGh2HySsO2VsEUOQYF gaDtWkOga5Om1cen32Eg6dXFqIkQSel6ry78yqWsCl00L2OuLBySNaFp2q7uLNT52W4wepbx DYoMLjywNR/oKNy+YHDNyF4O+BhXqa1LDmkduqqIdrEuuzw6afVFf0zsr+5BLO8ct0qyS7P3 DhBi0jiRpwsqkYr+AtRYEstbAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNIsWRmVeSWpSXmKPExsVy+t/xu7q3U3fFGZw7bWPRe+4kk8XGGetZ LRb19rJY/N82kdniytf3bBYrVx9lsliw39riy5WHTBabHl9jtbi8aw6bxeXmi4wWa4/cZbdo ajG2uHvvBIvFwQ9PWB34PdbMW8PosffbAhaPnbPusntsWtXJ5rH92wNWj/vdx5k8Ni+p97j9 7zGzx+Qbyxk9dt9sYPPo/2vg0bdlFaPH501yAbxRejZF+aUlqQoZ+cUltkrRhhZGeoaWFnpG JpZ6hsbmsVZGpkr6djYpqTmZZalF+nYJehkPLn9kK5jDXXH23WPGBsZdnF2MnBwSAiYSJw7t YOli5OIQEljKKLH20htmiISMxMlpDawQtrDEn2tdbBBFnxgl3u85CJZgEzCU6HoLkRAR6GSU mNb9kR3EYRY4xiyx8fF7sFHCAqESjd/Ps4HYLAKqEm3X3zCB2LwCdhIn+3exQ6yQl1i94QBY PSdQ/P78PywgtpBAocSjq29ZJjDyLWBkWMUoklpanJueW2ykV5yYW1yal66XnJ+7iREYUduO /dyyg7HrXfAhRgEORiUe3g6jnXFCrIllxZW5hxglOJiVRHhbMoFCvCmJlVWpRfnxRaU5qcWH GE2BjprILCWanA+M9rySeENTQ3MLS0NzY3NjMwslcd4OgYMxQgLpiSWp2ampBalFMH1MHJxS DYzcZ54IKl/4ltzlyN3+c5u4Q9jyy/+d4nWuvNiRzV02a65SkujS8BNNUT0ix5PlV0tfvr/8 QOWpHle5qq6AazOnL7l5LnoKp3VlTM+Tqwvz2JryFyyu2y5yvWNF/MQTVbkTZs89IDR5dWP5 1D/1r3l+R31ReS783HU/e8uHU292rCs48ps94sEPJZbijERDLeai4kQA7bBGYr4CAAA= X-CMS-MailID: 20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f X-Msg-Generator: CA X-RootMTR: 20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f References: <20200512085710.14688-1-m.szyprowski@samsung.com> <20200512090058.14910-1-m.szyprowski@samsung.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chun-Kuang Hu , Bartlomiej Zolnierkiewicz , David Airlie , linux-mediatek@lists.infradead.org, Matthias Brugger , Robin Murphy , Christoph Hellwig , linux-arm-kernel@lists.infradead.org, Marek Szyprowski MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/dri-devel/20200512085710.14688-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 6c34c06..14fcd48 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -233,9 +233,7 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) { struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); struct sg_table *sgt; - struct sg_page_iter iter; unsigned int npages; - unsigned int i = 0; if (mtk_gem->kvaddr) return mtk_gem->kvaddr; @@ -249,11 +247,8 @@ void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj) if (!mtk_gem->pages) goto out; - for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) { - mtk_gem->pages[i++] = sg_page_iter_page(&iter); - if (i > npages) - break; - } + drm_prime_sg_to_page_addr_arrays(sgt, mtk_gem->pages, NULL, npages); + mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); -- 1.9.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel