summaryrefslogtreecommitdiff
path: root/linux/drivers/media/video/videobuf-dma-sg.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux/drivers/media/video/videobuf-dma-sg.c')
-rw-r--r--linux/drivers/media/video/videobuf-dma-sg.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/linux/drivers/media/video/videobuf-dma-sg.c b/linux/drivers/media/video/videobuf-dma-sg.c
index 06a219e0d..7d459ed6b 100644
--- a/linux/drivers/media/video/videobuf-dma-sg.c
+++ b/linux/drivers/media/video/videobuf-dma-sg.c
@@ -163,9 +163,6 @@ static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma,
dprintk(1,"init user [0x%lx+0x%lx => %d pages]\n",
data,size,dma->nr_pages);
- dma->varea = (void *) data;
-
-
err = get_user_pages(current,current->mm,
data & PAGE_MASK, dma->nr_pages,
rw == READ, 1, /* force */
@@ -253,7 +250,7 @@ int videobuf_dma_map(struct videobuf_queue* q, struct videobuf_dmabuf *dma)
dma->nr_pages, dma->direction);
if (0 == dma->sglen) {
printk(KERN_WARNING
- "%s: videobuf_map_sg failed\n",__FUNCTION__);
+ "%s: videobuf_map_sg failed\n",__func__);
kfree(dma->sglist);
dma->sglist = NULL;
dma->sglen = 0;
@@ -305,7 +302,6 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma)
vfree(dma->vmalloc);
dma->vmalloc = NULL;
- dma->varea = NULL;
if (dma->bus_addr) {
dma->bus_addr = 0;
@@ -476,12 +472,22 @@ static void *__videobuf_alloc(size_t size)
videobuf_dma_init(&mem->dma);
dprintk(1,"%s: allocated at %p(%ld+%ld) & %p(%ld)\n",
- __FUNCTION__,vb,(long)sizeof(*vb),(long)size-sizeof(*vb),
+ __func__,vb,(long)sizeof(*vb),(long)size-sizeof(*vb),
mem,(long)sizeof(*mem));
return vb;
}
+static void *__videobuf_to_vmalloc (struct videobuf_buffer *buf)
+{
+ struct videobuf_dma_sg_memory *mem = buf->priv;
+ BUG_ON(!mem);
+
+ MAGIC_CHECK(mem->magic, MAGIC_SG_MEM);
+
+ return mem->dma.vmalloc;
+}
+
static int __videobuf_iolock (struct videobuf_queue* q,
struct videobuf_buffer *vb,
struct v4l2_framebuffer *fbuf)
@@ -727,6 +733,7 @@ static struct videobuf_qtype_ops sg_ops = {
.mmap_mapper = __videobuf_mmap_mapper,
.video_copy_to_user = __videobuf_copy_to_user,
.copy_stream = __videobuf_copy_stream,
+ .vmalloc = __videobuf_to_vmalloc,
};
void *videobuf_sg_alloc(size_t size)