aboutsummaryrefslogtreecommitdiffstats
path: root/include/media/videobuf2-memops.h
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2015-07-13 11:55:46 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-16 13:10:42 -0300
commit21fb0cb7ec65a40b9f5f7cda59eba0eb2ae76473 (patch)
treee0cccb86717f351e3bc6c38811cb093c65837f07 /include/media/videobuf2-memops.h
parent8a677b6eddfc3127ea36a710838ecd20502b1cb9 (diff)
[media] vb2: Provide helpers for mapping virtual addresses
Provide simple helper functions to map virtual address range into an array of pfns / pages. Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media/videobuf2-memops.h')
-rw-r--r--include/media/videobuf2-memops.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/media/videobuf2-memops.h b/include/media/videobuf2-memops.h
index f05444ca8c0c..2f0564ff5f31 100644
--- a/include/media/videobuf2-memops.h
+++ b/include/media/videobuf2-memops.h
@@ -15,6 +15,7 @@
#define _MEDIA_VIDEOBUF2_MEMOPS_H
#include <media/videobuf2-core.h>
+#include <linux/mm.h>
/**
* vb2_vmarea_handler - common vma refcount tracking handler
@@ -36,5 +37,9 @@ int vb2_get_contig_userptr(unsigned long vaddr, unsigned long size,
struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma);
void vb2_put_vma(struct vm_area_struct *vma);
+struct frame_vector *vb2_create_framevec(unsigned long start,
+ unsigned long length,
+ bool write);
+void vb2_destroy_framevec(struct frame_vector *vec);
#endif

Privacy Policy