From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailout2.w1.samsung.com ([210.118.77.12]:22575 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755951Ab2FNNiQ (ORCPT ); Thu, 14 Jun 2012 09:38:16 -0400 Received: from euspt1 (mailout2.w1.samsung.com [210.118.77.12]) by mailout2.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0M5M00AEO0KHDX70@mailout2.w1.samsung.com> for linux-media@vger.kernel.org; Thu, 14 Jun 2012 14:38:41 +0100 (BST) Received: from linux.samsung.com ([106.116.38.10]) by spt1.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0M5M00IO20JMBI@spt1.w1.samsung.com> for linux-media@vger.kernel.org; Thu, 14 Jun 2012 14:38:10 +0100 (BST) Date: Thu, 14 Jun 2012 15:37:44 +0200 From: Tomasz Stanislawski Subject: [PATCHv7 10/15] v4l: vb2-dma-contig: add prepare/finish to dma-contig allocator In-reply-to: <1339681069-8483-1-git-send-email-t.stanislaws@samsung.com> To: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: airlied@redhat.com, m.szyprowski@samsung.com, t.stanislaws@samsung.com, kyungmin.park@samsung.com, laurent.pinchart@ideasonboard.com, sumit.semwal@ti.com, daeinki@gmail.com, daniel.vetter@ffwll.ch, robdclark@gmail.com, pawel@osciak.com, linaro-mm-sig@lists.linaro.org, hverkuil@xs4all.nl, remi@remlab.net, subashrp@gmail.com, mchehab@redhat.com, g.liakhovetski@gmx.de Message-id: <1339681069-8483-11-git-send-email-t.stanislaws@samsung.com> Content-transfer-encoding: 7BIT References: <1339681069-8483-1-git-send-email-t.stanislaws@samsung.com> Sender: linux-media-owner@vger.kernel.org List-ID: From: Marek Szyprowski Add prepare/finish callbacks to vb2-dma-contig allocator. Signed-off-by: Marek Szyprowski --- drivers/media/video/videobuf2-dma-contig.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c index 94f0874..f9286d7 100644 --- a/drivers/media/video/videobuf2-dma-contig.c +++ b/drivers/media/video/videobuf2-dma-contig.c @@ -103,6 +103,28 @@ static unsigned int vb2_dc_num_users(void *buf_priv) return atomic_read(&buf->refcount); } +static void vb2_dc_prepare(void *buf_priv) +{ + struct vb2_dc_buf *buf = buf_priv; + struct sg_table *sgt = buf->dma_sgt; + + if (!sgt) + return; + + dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir); +} + +static void vb2_dc_finish(void *buf_priv) +{ + struct vb2_dc_buf *buf = buf_priv; + struct sg_table *sgt = buf->dma_sgt; + + if (!sgt) + return; + + dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir); +} + /*********************************************/ /* callbacks for MMAP buffers */ /*********************************************/ @@ -369,6 +391,8 @@ const struct vb2_mem_ops vb2_dma_contig_memops = { .mmap = vb2_dc_mmap, .get_userptr = vb2_dc_get_userptr, .put_userptr = vb2_dc_put_userptr, + .prepare = vb2_dc_prepare, + .finish = vb2_dc_finish, .num_users = vb2_dc_num_users, }; EXPORT_SYMBOL_GPL(vb2_dma_contig_memops); -- 1.7.9.5