video: tegra: host: add buffer pin and unpin for nvdla

- Using nvhost buffer management framework API's support
  Buffer pin and unpin for multiple buffer handles.

Jira DLA-21

Change-Id: I029dfae698a699caa6e19ef6e7e3c0641b9de782
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-on: http://git-master/r/1174651
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/include/linux/nvhost_nvdla_ioctl.h b/include/linux/nvhost_nvdla_ioctl.h
index 633facb2a..b5b6c676b 100644
--- a/include/linux/nvhost_nvdla_ioctl.h
+++ b/include/linux/nvhost_nvdla_ioctl.h
@@ -33,15 +33,25 @@ struct nvdla_ctrl_ping_args {
         __u32 out_response;
 };
 
+struct nvdla_ctrl_pin_unpin_args {
+        __u64 buffers;
+        __u32 num_buffers;
+        __u32 reserved;
+};
+
 #define NVHOST_NVDLA_IOCTL_MAGIC 'D'
 
 #define NVDLA_IOCTL_CTRL_PING           \
                 _IOWR(NVHOST_NVDLA_IOCTL_MAGIC, 1, struct nvdla_ctrl_ping_args)
+#define NVDLA_IOCTL_CTRL_PIN   \
+        _IOW(NVHOST_NVDLA_IOCTL_MAGIC, 2, struct nvdla_ctrl_pin_unpin_args)
+#define NVDLA_IOCTL_CTRL_UNPIN \
+        _IOW(NVHOST_NVDLA_IOCTL_MAGIC, 3, struct nvdla_ctrl_pin_unpin_args)
 
 #define NVDLA_IOCTL_CTRL_LAST           \
-                _IOC_NR(NVDLA_IOCTL_CTRL_PING)
+                _IOC_NR(NVDLA_IOCTL_CTRL_UNPIN)
 
 #define NVDLA_IOCTL_CTRL_MAX_ARG_SIZE  \
-                sizeof(struct nvdla_ctrl_ping_args)
+                sizeof(struct nvdla_ctrl_pin_unpin_args)
 
 #endif /* __LINUX_NVHOST_NVDLA_IOCTL_H */