video: tegra: host: pva: Add hardware submission

This patch implements task construction and submission to PVA.
The current version has few restrictions:

* Only syncpoint fence type is supported
* Only a single task may be submitted at a time
* Tasks are not strictly tracked within kernel. This prevents
  implementing debug dumping through debugfs.
* CVSRAM is not supported

JIRA PVA-88

Change-Id: I3f22472f658a0493707c5579afa20088c80903cb
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/1216373
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/uapi/linux/nvhost_pva_ioctl.h b/include/uapi/linux/nvhost_pva_ioctl.h
index 1ffa220e6..f7311da54 100644
--- a/include/uapi/linux/nvhost_pva_ioctl.h
+++ b/include/uapi/linux/nvhost_pva_ioctl.h
@@ -164,7 +164,7 @@ struct pva_fence {
         __u32 semaphore_value;
 };
 
-#define PVA_MAX_TASKS           16
+#define PVA_MAX_TASKS           1
 #define PVA_MAX_PREFENCES       8
 #define PVA_MAX_POSTFENCES      8
 #define PVA_MAX_INPUT_STATUS    8