From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailout1.w1.samsung.com ([210.118.77.11]:16881 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758721Ab2DJNKx (ORCPT ); Tue, 10 Apr 2012 09:10:53 -0400 Received: from euspt2 (mailout1.w1.samsung.com [210.118.77.11]) by mailout1.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0M2900LLSLWHV7@mailout1.w1.samsung.com> for linux-media@vger.kernel.org; Tue, 10 Apr 2012 14:09:54 +0100 (BST) Received: from linux.samsung.com ([106.116.38.10]) by spt2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0M2900ML4LY1QL@spt2.w1.samsung.com> for linux-media@vger.kernel.org; Tue, 10 Apr 2012 14:10:49 +0100 (BST) Date: Tue, 10 Apr 2012 15:10:40 +0200 From: Tomasz Stanislawski Subject: [RFC 06/13] v4l: vb2-dma-contig: add vmap/kmap for dmabuf exporting In-reply-to: <1334063447-16824-1-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, subashrp@gmail.com, mchehab@redhat.com Message-id: <1334063447-16824-7-git-send-email-t.stanislaws@samsung.com> MIME-version: 1.0 Content-type: TEXT/PLAIN Content-transfer-encoding: 7BIT References: <1334063447-16824-1-git-send-email-t.stanislaws@samsung.com> Sender: linux-media-owner@vger.kernel.org List-ID: This patch adds support for vmap and kmap callbacks for DMABUF exporter. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park --- drivers/media/video/videobuf2-dma-contig.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c index e1ad47e..537926b 100644 --- a/drivers/media/video/videobuf2-dma-contig.c +++ b/drivers/media/video/videobuf2-dma-contig.c @@ -403,11 +403,28 @@ static void vb2_dc_dmabuf_ops_release(struct dma_buf *dbuf) vb2_dc_put(dbuf->priv); } +static void *vb2_dc_dmabuf_ops_kmap(struct dma_buf *dbuf, unsigned long pgnum) +{ + struct vb2_dc_buf *buf = dbuf->priv; + + return buf->vaddr + pgnum * PAGE_SIZE; +} + +static void *vb2_dc_dmabuf_ops_vmap(struct dma_buf *dbuf) +{ + struct vb2_dc_buf *buf = dbuf->priv; + + return buf->vaddr; +} + static struct dma_buf_ops vb2_dc_dmabuf_ops = { .attach = vb2_dc_dmabuf_ops_attach, .detach = vb2_dc_dmabuf_ops_detach, .map_dma_buf = vb2_dc_dmabuf_ops_map, .unmap_dma_buf = vb2_dc_dmabuf_ops_unmap, + .kmap = vb2_dc_dmabuf_ops_kmap, + .kmap_atomic = vb2_dc_dmabuf_ops_kmap, + .vmap = vb2_dc_dmabuf_ops_vmap, .release = vb2_dc_dmabuf_ops_release, }; -- 1.7.5.4