void m2m1shot_unmap_dma_buf(struct device *dev,
struct m2m1shot_buffer_plane_dma *plane,
enum dma_data_direction dir)
{
if (plane->dmabuf) {
exynos_ion_sync_dmabuf_for_device(dev, plane->dmabuf,
plane->bytes_used, dir);
dma_buf_unmap_attachment(plane->attachment, plane->sgt, dir);
} else {
exynos_ion_sync_sg_for_cpu(dev, plane->bytes_used,
plane->sgt, dir);
}
}
dma_addr_t decon_map_sec_dma_buf(struct dma_buf *dbuf, int plane)
{
struct decon_device *decon = get_decon_drvdata(0); /* 0: decon Int ID */
if (!dbuf || (plane >= MAX_BUF_PLANE_CNT) || (plane < 0))
return -EINVAL;
dma.ion_handle = NULL;
dma.fence = NULL;
dma.dma_buf = dbuf;
dma.attachment = dma_buf_attach(dbuf, decon->dev);
if (IS_ERR(dma.attachment)) {
decon_err("dma_buf_attach() failed: %ld\n",
PTR_ERR(dma.attachment));
goto err_buf_map_attach;
}
dma.sg_table = dma_buf_map_attachment(dma.attachment,
DMA_TO_DEVICE);
if (IS_ERR(dma.sg_table)) {
decon_err("dma_buf_map_attachment() failed: %ld\n",
PTR_ERR(dma.sg_table));
goto err_buf_map_attachment;
}
dma.dma_addr = ion_iovmm_map(dma.attachment, 0,
dma.dma_buf->size, DMA_TO_DEVICE, plane);
if (IS_ERR_VALUE(dma.dma_addr)) {
decon_err("iovmm_map() failed: %pa\n", &dma.dma_addr);
goto err_iovmm_map;
}
exynos_ion_sync_dmabuf_for_device(decon->dev, dma.dma_buf,
dma.dma_buf->size, DMA_TO_DEVICE);
return dma.dma_addr;
err_iovmm_map:
dma_buf_unmap_attachment(dma.attachment, dma.sg_table,
DMA_TO_DEVICE);
err_buf_map_attachment:
dma_buf_detach(dma.dma_buf, dma.attachment);
err_buf_map_attach:
return 0;
}
int m2m1shot_map_dma_buf(struct device *dev,
struct m2m1shot_buffer_plane_dma *plane,
enum dma_data_direction dir)
{
if (plane->dmabuf) {
plane->sgt = dma_buf_map_attachment(plane->attachment, dir);
if (IS_ERR(plane->sgt)) {
dev_err(dev, "%s: failed to map attacment of dma_buf\n",
__func__);
return PTR_ERR(plane->sgt);
}
exynos_ion_sync_dmabuf_for_device(dev, plane->dmabuf,
plane->bytes_used, dir);
} else { /* userptr */
exynos_ion_sync_sg_for_device(dev, plane->bytes_used,
plane->sgt, dir);
}
return 0;
}
