video: tegra: host: dla: add basic tasklist support

- fix include files path in makefile
- fix ioctl include header file path
- update comments in doxygen format

add support to submit task to engine as per tasklist
  management protocol
- maintain list of tasks under assigned queue with ref counts
- allocates task to maintain list of fences and update them
- dma alloc task descriptor and action list and update them
- submit tasks one by one and send received fence back
  to application
- register for syncpoint notifier with nvhost for completion
  of fence
- on fence completion interrupt handler, cleanup task
 
Jira DLA-52

Change-Id: Ibe385f47dc9f17dda79cca3daf29b89218dc7289
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-on: http://git-master/r/1191495
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 52 insertions, 17 deletions

diff --git a/include/linux/nvhost_nvdla_ioctl.h b/include/linux/nvhost_nvdla_ioctl.h
index 06f4f1011..1db5d710e 100644
--- a/include/linux/nvhost_nvdla_ioctl.h
+++ b/include/linux/nvhost_nvdla_ioctl.h
@@ -28,17 +28,42 @@
 #define __user
 #endif
 
+/**
+ * struct nvdla_ctrl_ping_args structure for ping data
+ *
+ * @in_challenge        challenge data to be sent
+ * @out_response        response/CRC on challenge data from engine
+ *
+ */
 struct nvdla_ctrl_ping_args {
         __u32 in_challenge;
         __u32 out_response;
 };
 
+
+/**
+ * struct nvdla_ctrl_pin_unpin_args strcture args for buffer pin/unpin
+ *
+ * @buffers             list of buffers to pin/unpin'ed
+ * @num_buffers         number of buffers count
+ * @reserved            reserved for future use
+ *
+ */
 struct nvdla_ctrl_pin_unpin_args {
         __u64 buffers;
         __u32 num_buffers;
         __u32 reserved;
 };
 
+/**
+ * struct nvdla_ctrl_submit_args structure for task submit
+ *
+ * @tasks               pointer to task list
+ * @num_tasks           number of tasks count
+ * @flags               flags for task submit, like atomic
+ * @version             version of task structure
+ *
+ */
 struct nvdla_ctrl_submit_args {
         __u64 tasks;
         __u16 num_tasks;
@@ -48,6 +73,25 @@ struct nvdla_ctrl_submit_args {
         __u32 version;
 };
 
+/**
+ * struct nvdla_ctrl_ioctl_submit_task structure for single task information
+ *
+ * @num_prefences               number of pre-fences in task
+ * @num_postfences              number of post-fences in task
+ * @num_input_task_status       number of input task status
+ * @num_output_task_status      number of output task status
+ * @flags                       flags for bitwise task info embeddeing
+ * @reserved                    reserved for future use
+ * @prefences                   pointer to pre-fence struct table
+ * @postfences                  pointer to post-fence struct table
+ * @input_task_status           pointer to input task status struct table
+ * @output_task_status          pointer to output task status struct table
+ * @num_operations              number of operations for a task
+ * @num_addresses               total number of addressed passed in structure
+ * @surface_desc                pointer to surface descriptor
+ * @address_list                pointer to address list
+ *
+ */
 struct nvdla_ctrl_ioctl_submit_task {
         __u8 num_prefences;
         __u8 num_postfences;
@@ -70,6 +114,14 @@ struct nvdla_ctrl_ioctl_submit_task {
         __u64 address_list;
 };
 
+/**
+ * struct nvdla_fence structure for passing fence information
+ *
+ * @type                        type of fence: syncpoint, Linux Sync Fd
+ * @syncpoint_index             syncpoint id
+ * @syncpoint_value             value of syncpoint id
+ * @sync_fd                     Linux sync FD handle
+ */
 struct nvdla_fence {
         __u32 type;
 #define NVDLA_FENCE_TYPE_SYNCPT         0
@@ -79,23 +131,6 @@ struct nvdla_fence {
         __u32 sync_fd;
 };
 
-struct nvdla_task_surface {
-        __u64 format;
-        __u32 handle;
-        __u32 offset;
-};
-
-struct nvdla_task_roi {
-        __u32 handle;
-        __u32 offset;
-};
-
-struct nvdla_task_status_handle {
-        __u32 handle;
-        __u32 reserved;
-        __u64 offset;
-};
-
 #define NVHOST_NVDLA_IOCTL_MAGIC 'D'
 
 #define NVDLA_IOCTL_CTRL_PING           \