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authorMaarten Lankhorst <maarten.lankhorst@canonical.com>2014-07-01 12:57:43 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-08 13:36:52 -0700
commit9b495a5887994a6d74d5c261d012083a92b94738 (patch)
tree513e525cdc0bbce66f76632058bf6379c368184e /include/linux/dma-buf.h
parent0ba6b8fb91fc051535c7612f6241c8197d92323b (diff)
dma-buf: add poll support, v3
Thanks to Fengguang Wu for spotting a missing static cast. v2: - Kill unused variable need_shared. v3: - Clarify the BUG() in dma_buf_release some more. (Rob Clark) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/dma-buf.h')
-rw-r--r--include/linux/dma-buf.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index fd7def2e0ae2..694e1fe1c4b4 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -30,6 +30,8 @@
#include <linux/list.h>
#include <linux/dma-mapping.h>
#include <linux/fs.h>
+#include <linux/fence.h>
+#include <linux/wait.h>
struct device;
struct dma_buf;
@@ -130,6 +132,16 @@ struct dma_buf {
struct list_head list_node;
void *priv;
struct reservation_object *resv;
+
+ /* poll support */
+ wait_queue_head_t poll;
+
+ struct dma_buf_poll_cb_t {
+ struct fence_cb cb;
+ wait_queue_head_t *poll;
+
+ unsigned long active;
+ } cb_excl, cb_shared;
};
/**