video: tegra: host: dla: add semaphore support for prefences

- this adds semaphore/memsignal support in prefences
- while updating task descriptor, does pinning of UMD semaphore
  handle and received dma_addr added as preaction

Jira DLA-161

Change-Id: If3695b0cca29d485c04b93a83848d50ad81dd9fd
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-on: http://git-master/r/1274302
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/nvhost_nvdla_ioctl.h b/include/linux/nvhost_nvdla_ioctl.h
index 5e9d82bd1..e5eef1554 100644
--- a/include/linux/nvhost_nvdla_ioctl.h
+++ b/include/linux/nvhost_nvdla_ioctl.h
@@ -132,9 +132,13 @@ struct nvdla_fence {
         __u32 type;
 #define NVDLA_FENCE_TYPE_SYNCPT         0
 #define NVDLA_FENCE_TYPE_SYNC_FD        1
+#define NVDLA_FENCE_TYPE_SEMAPHORE      2
         __u32 syncpoint_index;
         __u32 syncpoint_value;
         __u32 sync_fd;
+        __u32 sem_handle;
+        __u32 sem_offset;
+        __u32 sem_val;
 };
 
 #define NVHOST_NVDLA_IOCTL_MAGIC 'D'