1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
 3 */
 4
 5#ifndef _DPU_HW_INTERRUPTS_H
 6#define _DPU_HW_INTERRUPTS_H
 7
 8#include <linux/types.h>
 9
10#include "dpu_hwio.h"
11#include "dpu_hw_catalog.h"
12#include "dpu_hw_util.h"
13#include "dpu_hw_mdss.h"
14
15/* When making changes be sure to sync with dpu_intr_set */
16enum dpu_hw_intr_reg {
17	MDP_SSPP_TOP0_INTR,
18	MDP_SSPP_TOP0_INTR2,
19	MDP_SSPP_TOP0_HIST_INTR,
20	MDP_INTF0_INTR,
21	MDP_INTF1_INTR,
22	MDP_INTF2_INTR,
23	MDP_INTF3_INTR,
24	MDP_INTF4_INTR,
25	MDP_INTF5_INTR,
26	MDP_AD4_0_INTR,
27	MDP_AD4_1_INTR,
28	MDP_INTF0_7xxx_INTR,
29	MDP_INTF1_7xxx_INTR,
30	MDP_INTF2_7xxx_INTR,
31	MDP_INTF3_7xxx_INTR,
32	MDP_INTF4_7xxx_INTR,
33	MDP_INTF5_7xxx_INTR,
34	MDP_INTR_MAX,
35};
36
37#define DPU_IRQ_IDX(reg_idx, offset)	(reg_idx * 32 + offset)
38
39/**
40 * struct dpu_hw_intr: hw interrupts handling data structure
41 * @hw:               virtual address mapping
42 * @ops:              function pointer mapping for IRQ handling
43 * @cache_irq_mask:   array of IRQ enable masks reg storage created during init
44 * @save_irq_status:  array of IRQ status reg storage created during init
45 * @total_irqs: total number of irq_idx mapped in the hw_interrupts
46 * @irq_lock:         spinlock for accessing IRQ resources
47 * @irq_cb_tbl:       array of IRQ callbacks
48 */
49struct dpu_hw_intr {
50	struct dpu_hw_blk_reg_map hw;
51	u32 cache_irq_mask[MDP_INTR_MAX];
52	u32 *save_irq_status;
53	u32 total_irqs;
54	spinlock_t irq_lock;
55	unsigned long irq_mask;
56
57	struct {
58		void (*cb)(void *arg, int irq_idx);
59		void *arg;
60		atomic_t count;
61	} irq_tbl[];
62};
63
64/**
65 * dpu_hw_intr_init(): Initializes the interrupts hw object
66 * @addr: mapped register io address of MDP
67 * @m :   pointer to mdss catalog data
68 */
69struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
70		const struct dpu_mdss_cfg *m);
71
72/**
73 * dpu_hw_intr_destroy(): Cleanup interrutps hw object
74 * @intr: pointer to interrupts hw object
75 */
76void dpu_hw_intr_destroy(struct dpu_hw_intr *intr);
77#endif