/*
 * SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note
 * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
 */

#ifndef _UAPI_MSM_HGSL_H
#define _UAPI_MSM_HGSL_H

#include <linux/types.h>
#include <linux/ioctl.h>

#define DB_STATE_Q_MASK	0xffff
#define DB_STATE_Q_UNINIT	1
#define DB_STATE_Q_INIT_DONE	2
#define DB_STATE_Q_FAULT	3

/* Doorbell Signal types */
#define DB_SIGNAL_INVALID	0
#define DB_SIGNAL_GLOBAL_0	1
#define DB_SIGNAL_GLOBAL_1	2
#define DB_SIGNAL_LOCAL	3
#define DB_SIGNAL_MAX	DB_SIGNAL_LOCAL

struct hgsl_ibdesc {
	uint64_t gpuaddr;
	uint32_t sizedwords;
};

struct hgsl_mem_object {
	uint64_t gpuaddr;
	uint32_t sizedwords;
};

struct hgsl_fhi_issud_cmds {
	uint32_t context_id;
	uint32_t timestamp;
	uint32_t flags;
	uint32_t num_ibs;
	uint32_t num_bos;
	uint64_t ibs;
	uint64_t bos;
};

struct hgsl_db_queue_inf {
	int32_t  fd;
	uint32_t head_dwords;
	int32_t  head_off_dwords;
	uint32_t queue_dwords;
	int32_t  queue_off_dwords;
	uint32_t db_signal;
};

struct hgsl_ctxt_create_info {
	uint32_t context_id;
	int32_t  shadow_fd;
	uint32_t shadow_sop_offset;
	uint32_t shadow_eop_offset;
};

struct hgsl_wait_ts_info {
	uint32_t context_id;
	unsigned int timestamp;
	unsigned int timeout;
};

struct hgsl_dbq_release_info {
	uint32_t ref_count;
	uint32_t ctxt_id;
};

#define HGSL_IOCTL_BASE	'h'
#define HGSL_IORW(n, t)	_IOWR(HGSL_IOCTL_BASE, n, t)
#define HGSL_IOW(n, t)	_IOW(HGSL_IOCTL_BASE, n, t)

#define HGSL_IOCTL_DBQ_GETSTATE	HGSL_IORW(0x01, int32_t)
#define HGSL_IOCTL_DBQ_INIT	HGSL_IORW(0x02, struct hgsl_db_queue_inf)
#define HGSL_IOCTL_DBQ_ASSIGN	HGSL_IORW(0x03, uint32_t)
#define HGSL_IOCTL_DBQ_RELEASE	HGSL_IORW(0x04, uint32_t)
#define HGSL_IOCTL_ISSUE_CMDS	HGSL_IORW(0x05, struct hgsl_fhi_issud_cmds)
#define HGSL_IOCTL_CTXT_CREATE	HGSL_IOW(0x10,  struct hgsl_ctxt_create_info)
#define HGSL_IOCTL_CTXT_DESTROY	HGSL_IOW(0x11,  uint32_t)
#define HGSL_IOCTL_WAIT_TIMESTAMP \
				HGSL_IOW(0x12,  struct hgsl_wait_ts_info)

#endif /* _UAPI_MSM_HGSL_H */