1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
2/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
3
4#ifndef __LIMA_DEVICE_H__
5#define __LIMA_DEVICE_H__
6
7#include <drm/drm_device.h>
8#include <linux/delay.h>
9#include <linux/list.h>
10#include <linux/mutex.h>
11
12#include "lima_sched.h"
13#include "lima_dump.h"
14#include "lima_devfreq.h"
15
16enum lima_gpu_id {
17	lima_gpu_mali400 = 0,
18	lima_gpu_mali450,
19	lima_gpu_num,
20};
21
22enum lima_ip_id {
23	lima_ip_pmu,
24	lima_ip_gpmmu,
25	lima_ip_ppmmu0,
26	lima_ip_ppmmu1,
27	lima_ip_ppmmu2,
28	lima_ip_ppmmu3,
29	lima_ip_ppmmu4,
30	lima_ip_ppmmu5,
31	lima_ip_ppmmu6,
32	lima_ip_ppmmu7,
33	lima_ip_gp,
34	lima_ip_pp0,
35	lima_ip_pp1,
36	lima_ip_pp2,
37	lima_ip_pp3,
38	lima_ip_pp4,
39	lima_ip_pp5,
40	lima_ip_pp6,
41	lima_ip_pp7,
42	lima_ip_l2_cache0,
43	lima_ip_l2_cache1,
44	lima_ip_l2_cache2,
45	lima_ip_dlbu,
46	lima_ip_bcast,
47	lima_ip_pp_bcast,
48	lima_ip_ppmmu_bcast,
49	lima_ip_num,
50};
51
52struct lima_device;
53
54struct lima_ip {
55	struct lima_device *dev;
56	enum lima_ip_id id;
57	bool present;
58
59	void __iomem *iomem;
60	int irq;
61
62	union {
63		/* gp/pp */
64		bool async_reset;
65		/* l2 cache */
66		spinlock_t lock;
67		/* pmu/bcast */
68		u32 mask;
69	} data;
70};
71
72enum lima_pipe_id {
73	lima_pipe_gp,
74	lima_pipe_pp,
75	lima_pipe_num,
76};
77
78struct lima_device {
79	struct device *dev;
80	struct drm_device *ddev;
81
82	enum lima_gpu_id id;
83	u32 gp_version;
84	u32 pp_version;
85	int num_pp;
86
87	void __iomem *iomem;
88	struct clk *clk_bus;
89	struct clk *clk_gpu;
90	struct reset_control *reset;
91	struct regulator *regulator;
92
93	struct lima_ip ip[lima_ip_num];
94	struct lima_sched_pipe pipe[lima_pipe_num];
95
96	struct lima_vm *empty_vm;
97	uint64_t va_start;
98	uint64_t va_end;
99
100	u32 *dlbu_cpu;
101	dma_addr_t dlbu_dma;
102
103	struct lima_devfreq devfreq;
104
105	/* debug info */
106	struct lima_dump_head dump;
107	struct list_head error_task_list;
108	struct mutex error_task_list_lock;
109};
110
111static inline struct lima_device *
112to_lima_dev(struct drm_device *dev)
113{
114	return dev->dev_private;
115}
116
117int lima_device_init(struct lima_device *ldev);
118void lima_device_fini(struct lima_device *ldev);
119
120const char *lima_ip_name(struct lima_ip *ip);
121
122typedef int (*lima_poll_func_t)(struct lima_ip *);
123
124static inline int lima_poll_timeout(struct lima_ip *ip, lima_poll_func_t func,
125				    int sleep_us, int timeout_us)
126{
127	ktime_t timeout = ktime_add_us(ktime_get(), timeout_us);
128
129	might_sleep_if(sleep_us);
130	while (1) {
131		if (func(ip))
132			return 0;
133
134		if (timeout_us && ktime_compare(ktime_get(), timeout) > 0)
135			return -ETIMEDOUT;
136
137		if (sleep_us)
138			usleep_range((sleep_us >> 2) + 1, sleep_us);
139	}
140	return 0;
141}
142
143int lima_device_suspend(struct device *dev);
144int lima_device_resume(struct device *dev);
145
146#endif
147