1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2022 MediaTek Inc.
4 * Author: Ping-Hsun Wu <ping-hsun.wu@mediatek.com>
5 */
6
7#ifndef __MTK_MDP3_VPU_H__
8#define __MTK_MDP3_VPU_H__
9
10#include <linux/platform_device.h>
11#include "mtk-img-ipi.h"
12
13enum mdp_ipi_result {
14	MDP_IPI_SUCCESS	= 0,
15	MDP_IPI_ENOMEM	= 12,
16	MDP_IPI_EBUSY	= 16,
17	MDP_IPI_EINVAL	= 22,
18	MDP_IPI_EMINST	= 24,
19	MDP_IPI_ERANGE	= 34,
20	MDP_IPI_NR_ERRNO,
21
22	MDP_IPI_EOTHER	= MDP_IPI_NR_ERRNO,
23	MDP_IPI_PATH_CANT_MERGE,
24	MDP_IPI_OP_FAIL,
25};
26
27struct mdp_ipi_init_msg {
28	u32	status;
29	u64	drv_data;
30	u32	work_addr;	/* [in] working buffer address */
31	u32	work_size;	/* [in] working buffer size */
32} __packed;
33
34struct mdp_ipi_deinit_msg {
35	u32	status;
36	u64	drv_data;
37	u32	work_addr;
38} __packed;
39
40struct mdp_vpu_dev {
41	/* synchronization protect for accessing vpu working buffer info */
42	struct mutex		*lock;
43	struct mtk_scp		*scp;
44	struct completion	ipi_acked;
45	void			*param;
46	dma_addr_t		param_addr;
47	size_t			param_size;
48	void			*work;
49	dma_addr_t		work_addr;
50	size_t			work_size;
51	void			*config;
52	dma_addr_t		config_addr;
53	size_t			config_size;
54	u32			status;
55};
56
57void mdp_vpu_shared_mem_free(struct mdp_vpu_dev *vpu);
58int mdp_vpu_dev_init(struct mdp_vpu_dev *vpu, struct mtk_scp *scp,
59		     struct mutex *lock /* for sync */);
60int mdp_vpu_dev_deinit(struct mdp_vpu_dev *vpu);
61int mdp_vpu_process(struct mdp_vpu_dev *vpu, struct img_ipi_frameparam *param);
62
63#endif  /* __MTK_MDP3_VPU_H__ */
64