static void fthd_buffer_cleanup(struct vb2_buffer *vb)
{
struct fthd_private *dev_priv = vb2_get_drv_priv(vb->vb2_queue);
struct h2t_buf_ctx *ctx = NULL;
int i;
pr_debug("%p\n", vb);
for(i = 0; i < FTHD_BUFFERS; i++) {
if (dev_priv->h2t_bufs[i].vb == vb) {
ctx = dev_priv->h2t_bufs + i;
break;
};
}
if (!ctx || ctx->state == BUF_FREE)
return;
ctx->state = BUF_FREE;
ctx->vb = NULL;
isp_mem_destroy(ctx->dma_desc_obj);
for(i = 0; i < dev_priv->fmt.planes; i++) {
iommu_free(dev_priv, ctx->plane[i]);
ctx->plane[i] = NULL;
}
ctx->dma_desc_obj = NULL;
}
void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle,
size_t size, enum dma_data_direction direction)
{
unsigned int npages;
BUG_ON(direction == DMA_NONE);
if (tbl) {
npages = iommu_num_pages(dma_handle, size);
iommu_free(tbl, dma_handle, npages);
}
}
void iommu_free_coherent(struct iommu_table *tbl, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
if (tbl) {
unsigned int nio_pages;
size = PAGE_ALIGN(size);
nio_pages = size >> IOMMU_PAGE_SHIFT;
iommu_free(tbl, dma_handle, nio_pages);
size = PAGE_ALIGN(size);
free_pages((unsigned long)vaddr, get_order(size));
}
}
