android13/kernel-5.10/drivers/video/rockchip/mpp/mpp_rkvdec2_link.h

/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * Copyright (c) 2021 Rockchip Electronics Co., Ltd
 *
 * author:
 *	Herman Chen <herman.chen@rock-chips.com>
 */
#ifndef __ROCKCHIP_MPP_RKVDEC2_LINK_H__
#define __ROCKCHIP_MPP_RKVDEC2_LINK_H__

#include "mpp_rkvdec2.h"

#define RKVDEC_REG_IMPORTANT_BASE	0x2c
#define RKVDEC_REG_IMPORTANT_INDEX	11
#define RKVDEC_SOFTREST_EN		BIT(20)

#define RKVDEC_REG_SECOND_EN_BASE	0x30
#define RKVDEC_REG_SECOND_EN_INDEX	12
#define RKVDEC_WAIT_RESET_EN		BIT(7)

#define RKVDEC_REG_EN_MODE_SET		13

#define RKVDEC_REG_DEBUG_INT_BASE	0x440
#define RKVDEC_REG_DEBUG_INT_INDEX	272
#define RKVDEC_BIT_BUS_IDLE		BIT(0)

#define RKVDEC_REG_TIMEOUT_THRESHOLD	32

/* define for link hardware */
#define RKVDEC_LINK_ADD_CFG_NUM		1

#define RKVDEC_LINK_IRQ_BASE		0x000
#define RKVDEC_LINK_BIT_IRQ_DIS		BIT(2)
#define RKVDEC_LINK_BIT_IRQ		BIT(8)
#define RKVDEC_LINK_BIT_IRQ_RAW		BIT(9)
#define RKVDEC_LINK_BIT_CORE_WORK_MODE	BIT(16)
#define RKVDEC_LINK_BIT_CCU_WORK_MODE	BIT(17)

#define RKVDEC_LINK_CFG_ADDR_BASE	0x004

#define RKVDEC_LINK_MODE_BASE		0x008
#define RKVDEC_LINK_BIT_ADD_MODE	BIT(31)

#define RKVDEC_LINK_CFG_CTRL_BASE	0x00c
#define RKVDEC_LINK_BIT_CFG_DONE	BIT(0)

#define RKVDEC_LINK_DEC_NUM_BASE	0x010

#define RKVDEC_LINK_TOTAL_NUM_BASE	0x014

#define RKVDEC_LINK_EN_BASE		0x018
#define RKVDEC_LINK_BIT_EN		BIT(0)

#define RKVDEC_LINK_NEXT_ADDR_BASE	0x01c

#define RKVDEC_LINK_STA_BASE		0x024

#define RKVDEC_LINK_REG_CYCLE_CNT	179

/* define for ccu link hardware */
#define RKVDEC_CCU_CTRL_BASE		0x000
#define RKVDEC_CCU_BIT_AUTOGATE		BIT(0)
#define RKVDEC_CCU_BIT_FIX_RCB		BIT(20)

#define RKVDEC_CCU_CFG_ADDR_BASE	0x004
#define RKVDEC_CCU_LINK_MODE_BASE	0x008
#define RKVDEC_CCU_BIT_ADD_MODE		BIT(31)

#define RKVDEC_CCU_CFG_DONE_BASE	0x00c
#define RKVDEC_CCU_BIT_CFG_DONE		BIT(0)

#define RKVDEC_CCU_DEC_NUM_BASE		0x010
#define RKVDEC_CCU_TOTAL_NUM_BASE	0x014

#define RKVDEC_CCU_WORK_BASE		0x018
#define RKVDEC_CCU_BIT_WORK_EN		BIT(0)

#define RKVDEC_CCU_SEND_NUM_BASE	0x024
#define RKVDEC_CCU_WORK_MODE_BASE	0x040
#define RKVDEC_CCU_BIT_WORK_MODE	BIT(0)

#define RKVDEC_CCU_CORE_WORK_BASE	0x044
#define RKVDEC_CCU_CORE_STA_BASE	0x048
#define RKVDEC_CCU_CORE_IDLE_BASE	0x04c
#define RKVDEC_CCU_CORE_ERR_BASE	0x054

#define RKVDEC_CCU_CORE_RW_MASK		0x30000

#define RKVDEC_MAX_WRITE_PART	6
#define RKVDEC_MAX_READ_PART	2

struct rkvdec_link_part {
	/* register offset of table buffer */
	u32 tb_reg_off;
	/* start idx of task register */
	u32 reg_start;
	/* number of task register */
	u32 reg_num;
};

struct rkvdec_link_status {
	u32 dec_num_mask;
	u32 err_flag_base;
	u32 err_flag_bit;
};

struct rkvdec_link_info {
	dma_addr_t iova;
	/* total register for link table buffer */
	u32 tb_reg_num;
	/* next link table addr in table buffer */
	u32 tb_reg_next;
	/* current read back addr in table buffer */
	u32 tb_reg_r;
	/* secondary enable in table buffer */
	u32 tb_reg_second_en;
	u32 part_w_num;
	u32 part_r_num;

	struct rkvdec_link_part part_w[RKVDEC_MAX_WRITE_PART];
	struct rkvdec_link_part part_r[RKVDEC_MAX_READ_PART];

	/* interrupt read back in table buffer */
	u32 tb_reg_int;
	u32 tb_reg_cycle;
	bool hack_setup;
	struct rkvdec_link_status reg_status;
};

struct rkvdec_link_dev {
	struct device *dev;
	struct mpp_dev *mpp;
	void __iomem *reg_base;
	u32 enabled;
	u32 link_mode;
	u32 decoded_status;
	u32 irq_status;
	u32 iova_curr;
	u32 iova_next;
	u32 decoded;
	u32 total;
	u32 error;
	u32 hack_task_running;

	struct rkvdec_link_info *info;
	struct mpp_dma_buffer *table;
	u32 link_node_size;
	u32 link_reg_count;

	/* taskqueue variables */
	u32 task_running;
	atomic_t task_pending;
	/* timeout can be trigger in different thread so atomic is needed */
	atomic_t task_timeout;
	u32 task_timeout_prev;

	/* link mode hardware status */
	atomic_t power_enabled;
	u32 irq_enabled;

	/* debug variable */
	u32 statistic_count;
	u64 task_cycle_sum;
	u32 task_cnt;
	u64 stuff_cycle_sum;
	u32 stuff_cnt;

	/* link info */
	u32 task_capacity;
	struct mpp_dma_buffer *table_array;
	struct list_head unused_list;
	struct list_head used_list;
};

enum RKVDEC2_CCU_MODE {
	RKVDEC2_CCU_MODE_NULL		= 0,
	RKVDEC2_CCU_TASK_SOFT		= 1,
	RKVDEC2_CCU_TASK_HARD		= 2,
	RKVDEC2_CCU_MODE_BUTT,
};

struct rkvdec2_ccu {
	struct device *dev;
	/* register base */
	void __iomem *reg_base;

	atomic_t power_enabled;
	struct mpp_clk_info aclk_info;
#ifdef CONFIG_ROCKCHIP_MPP_PROC_FS
	struct proc_dir_entry *procfs;
#endif
	struct reset_control *rst_a;
	enum RKVDEC2_CCU_MODE ccu_mode;
	u32 ccu_core_work_mode;

	struct mpp_dma_buffer *table_array;
	struct list_head unused_list;
	struct list_head used_list;
	u32 timeout_flag;
};

extern struct rkvdec_link_info rkvdec_link_rk356x_hw_info;
extern struct rkvdec_link_info rkvdec_link_v2_hw_info;
extern struct rkvdec_link_info rkvdec_link_vdpu382_hw_info;

int rkvdec_link_dump(struct mpp_dev *mpp);

int rkvdec2_link_init(struct platform_device *pdev, struct rkvdec2_dev *dec);
int rkvdec2_link_procfs_init(struct mpp_dev *mpp);
int rkvdec2_link_remove(struct mpp_dev *mpp, struct rkvdec_link_dev *link_dec);

irqreturn_t rkvdec2_link_irq_proc(int irq, void *param);
int rkvdec2_link_process_task(struct mpp_session *session,
			      struct mpp_task_msgs *msgs);
int rkvdec2_link_wait_result(struct mpp_session *session,
			     struct mpp_task_msgs *msgs);
void rkvdec2_link_worker(struct kthread_work *work_s);
void rkvdec2_link_session_deinit(struct mpp_session *session);

/* for ccu link */
int rkvdec2_attach_ccu(struct device *dev, struct rkvdec2_dev *dec);
int rkvdec2_ccu_link_init(struct platform_device *pdev, struct rkvdec2_dev *dec);
void *rkvdec2_ccu_alloc_task(struct mpp_session *session, struct mpp_task_msgs *msgs);
int rkvdec2_ccu_iommu_fault_handle(struct iommu_domain *iommu,
				   struct device *iommu_dev,
				   unsigned long iova, int status, void *arg);
irqreturn_t rkvdec2_soft_ccu_irq(int irq, void *param);
void rkvdec2_soft_ccu_worker(struct kthread_work *work_s);

int rkvdec2_ccu_alloc_table(struct rkvdec2_dev *dec,
			    struct rkvdec_link_dev *link_dec);
irqreturn_t rkvdec2_hard_ccu_irq(int irq, void *param);
void rkvdec2_hard_ccu_worker(struct kthread_work *work_s);

#endif