Please ignore this mail. I didn't know that "git send *" includes all files in the subdirectories. I am very sorry for disturbing you. Best regards, Hyungwon Hwang On Fri, 12 Jun 2015 21:59:12 +0900 Hyungwon Hwang <human.hwang@xxxxxxxxxxx> wrote: > FIMC & GSC driver can calculate the offset of planes. So there are > use cases which IPP receives just one GEM handle of an image with > multiple plane. This patch extends ipp_validate_mem_node() to validate > this case. > > Signed-off-by: Hyungwon Hwang <human.hwang@xxxxxxxxxxx> > --- > drivers/gpu/drm/exynos/exynos_drm_ipp.c | 51 > ++++++++++++++++++++++++--------- 1 file changed, 38 insertions(+), > 13 deletions(-) > > diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c > b/drivers/gpu/drm/exynos/exynos_drm_ipp.c index 54c5cf4..b3dc778 > 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c > +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c > @@ -482,8 +482,8 @@ static int ipp_validate_mem_node(struct > drm_device *drm_dev, { > struct drm_exynos_ipp_config *ipp_cfg; > unsigned int num_plane; > - unsigned long min_size, size; > - unsigned int bpp; > + unsigned long size, buf_size = 0, plane_size, img_size = 0; > + unsigned int bpp, width, height; > int i; > > ipp_cfg = &c_node->property.config[m_node->ops_id]; > @@ -497,20 +497,45 @@ static int ipp_validate_mem_node(struct > drm_device *drm_dev, > * but it seems more than enough > */ > for (i = 0; i < num_plane; ++i) { > - if (!m_node->buf_info.handles[i]) { > - DRM_ERROR("invalid handle for plane %d\n", > i); > - return -EINVAL; > - } > + width = ipp_cfg->sz.hsize; > + height = ipp_cfg->sz.vsize; > bpp = drm_format_plane_cpp(ipp_cfg->fmt, i); > - min_size = (ipp_cfg->sz.hsize * ipp_cfg->sz.vsize * > bpp) >> 3; > - size = exynos_drm_gem_get_size(drm_dev, > - > m_node->buf_info.handles[i], > - c_node->filp); > - if (min_size > size) { > - DRM_ERROR("invalid size for plane %d\n", i); > - return -EINVAL; > + > + /* > + * The result of drm_format_plane_cpp() for chroma > planes must > + * be used with drm_format_xxxx_chroma_subsampling() > for > + * correct result. > + */ > + if (i > 0) { > + width /= drm_format_horz_chroma_subsampling( > + > ipp_cfg->fmt); > + height /= drm_format_vert_chroma_subsampling( > + > ipp_cfg->fmt); } > + plane_size = width * height * bpp; > + img_size += plane_size; > + > + if (m_node->buf_info.handles[i]) { > + size = exynos_drm_gem_get_size(drm_dev, > + m_node->buf_info.handles[i], > + c_node->filp); > + if (plane_size > size) { > + DRM_ERROR( > + "buffer %d is smaller than > required\n", > + i); > + return -EINVAL; > + } > + > + buf_size += size; > + } > + } > + > + if (buf_size < img_size) { > + DRM_ERROR("size of buffers(%lu) is smaller than > image(%lu)\n", > + buf_size, img_size); > + return -EINVAL; > } > + > return 0; > } > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html