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/*
* include/linux/nvhost_nvdla_ioctl.h
*
* Tegra NvDLA Driver
*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __LINUX_NVHOST_NVDLA_IOCTL_H
#define __LINUX_NVHOST_NVDLA_IOCTL_H
#include <linux/ioctl.h>
#include <linux/types.h>
#if !defined(__KERNEL__)
#define __user
#endif
/**
* struct nvdla_ping_args structure for ping data
*
* @in_challenge challenge data to be sent
* @out_response response/CRC on challenge data from engine
*
*/
struct nvdla_ping_args {
__u32 in_challenge;
__u32 out_response;
};
/**
* struct nvdla_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_pin_unpin_args {
__u64 buffers;
__u32 num_buffers;
__u32 reserved;
};
/**
* struct nvdla_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_submit_args {
__u64 tasks;
__u16 num_tasks;
#define MAX_TASKS_PER_SUBMIT 32
#define NVDLA_SUBMIT_FLAGS_ATOMIC (1 << 0)
__u16 flags;
__u32 version;
};
/**
* struct nvdla_mem_handle structure for memory handles
*
* @handle handle to buffer allocated in userspace
* @offset offset in buffer
*
*/
struct nvdla_mem_handle {
__u32 handle;
__u32 offset;
};
/**
* struct nvdla_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
* @operation_desc pointer to operation descriptor list
* @surface_desc pointer to surface descriptor list
* @address_list pointer to address list
*
*/
struct nvdla_ioctl_submit_task {
__u8 num_prefences;
__u8 num_postfences;
__u8 num_input_task_status;
__u8 num_output_task_status;
__u16 flags;
__u16 reserved;
__u64 prefences;
__u64 postfences;
__u64 input_task_status;
__u64 output_task_status;
__u32 num_operations;
__u32 num_luts;
struct nvdla_mem_handle operation_desc;
struct nvdla_mem_handle surface_desc;
struct nvdla_mem_handle lut_data;
__u8 dynamic_roi;
struct nvdla_mem_handle roi_desc_array;
struct nvdla_mem_handle surface;
__u32 num_addresses;
struct nvdla_mem_handle 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
#define NVDLA_FENCE_TYPE_SYNC_FD 1
__u32 syncpoint_index;
__u32 syncpoint_value;
__u32 sync_fd;
};
#define NVHOST_NVDLA_IOCTL_MAGIC 'D'
#define NVDLA_IOCTL_PING \
_IOWR(NVHOST_NVDLA_IOCTL_MAGIC, 1, struct nvdla_ping_args)
#define NVDLA_IOCTL_PIN \
_IOW(NVHOST_NVDLA_IOCTL_MAGIC, 2, struct nvdla_pin_unpin_args)
#define NVDLA_IOCTL_UNPIN \
_IOW(NVHOST_NVDLA_IOCTL_MAGIC, 3, struct nvdla_pin_unpin_args)
#define NVDLA_IOCTL_SUBMIT \
_IOW(NVHOST_NVDLA_IOCTL_MAGIC, 4, struct nvdla_submit_args)
#define NVDLA_IOCTL_LAST \
_IOC_NR(NVDLA_IOCTL_SUBMIT)
#define NVDLA_IOCTL_MAX_ARG_SIZE \
sizeof(struct nvdla_pin_unpin_args)
#endif /* __LINUX_NVHOST_NVDLA_IOCTL_H */
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