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 | |
16 | enum lima_gpu_id { |
17 | lima_gpu_mali400 = 0, |
18 | lima_gpu_mali450, |
19 | lima_gpu_num, |
20 | }; |
21 | |
22 | enum 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 | |
52 | struct lima_device; |
53 | |
54 | struct 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 | |
72 | enum lima_pipe_id { |
73 | lima_pipe_gp, |
74 | lima_pipe_pp, |
75 | lima_pipe_num, |
76 | }; |
77 | |
78 | struct 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 | |
111 | static inline struct lima_device * |
112 | to_lima_dev(struct drm_device *dev) |
113 | { |
114 | return dev->dev_private; |
115 | } |
116 | |
117 | int lima_device_init(struct lima_device *ldev); |
118 | void lima_device_fini(struct lima_device *ldev); |
119 | |
120 | const char *lima_ip_name(struct lima_ip *ip); |
121 | |
122 | typedef int (*lima_poll_func_t)(struct lima_ip *); |
123 | |
124 | static 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(kt: ktime_get(), usec: 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(cmp1: ktime_get(), cmp2: timeout) > 0) |
135 | return -ETIMEDOUT; |
136 | |
137 | if (sleep_us) |
138 | usleep_range(min: (sleep_us >> 2) + 1, max: sleep_us); |
139 | } |
140 | return 0; |
141 | } |
142 | |
143 | int lima_device_suspend(struct device *dev); |
144 | int lima_device_resume(struct device *dev); |
145 | |
146 | #endif |
147 | |