This source file includes following definitions.
- to_panfrost_device
- panfrost_model_cmp
- panfrost_model_is_bifrost
- panfrost_model_eq
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5 #ifndef __PANFROST_DEVICE_H__
6 #define __PANFROST_DEVICE_H__
7
8 #include <linux/atomic.h>
9 #include <linux/io-pgtable.h>
10 #include <linux/spinlock.h>
11 #include <drm/drm_device.h>
12 #include <drm/drm_mm.h>
13 #include <drm/gpu_scheduler.h>
14
15 struct panfrost_device;
16 struct panfrost_mmu;
17 struct panfrost_job_slot;
18 struct panfrost_job;
19 struct panfrost_perfcnt;
20
21 #define NUM_JOB_SLOTS 3
22
23 struct panfrost_features {
24 u16 id;
25 u16 revision;
26
27 u64 shader_present;
28 u64 tiler_present;
29 u64 l2_present;
30 u64 stack_present;
31 u32 as_present;
32 u32 js_present;
33
34 u32 l2_features;
35 u32 core_features;
36 u32 tiler_features;
37 u32 mem_features;
38 u32 mmu_features;
39 u32 thread_features;
40 u32 max_threads;
41 u32 thread_max_workgroup_sz;
42 u32 thread_max_barrier_sz;
43 u32 coherency_features;
44 u32 texture_features[4];
45 u32 js_features[16];
46
47 u32 nr_core_groups;
48 u32 thread_tls_alloc;
49
50 unsigned long hw_features[64 / BITS_PER_LONG];
51 unsigned long hw_issues[64 / BITS_PER_LONG];
52 };
53
54 struct panfrost_devfreq_slot {
55 ktime_t busy_time;
56 ktime_t idle_time;
57 ktime_t time_last_update;
58 bool busy;
59 };
60
61 struct panfrost_device {
62 struct device *dev;
63 struct drm_device *ddev;
64 struct platform_device *pdev;
65
66 void __iomem *iomem;
67 struct clk *clock;
68 struct clk *bus_clock;
69 struct regulator *regulator;
70 struct reset_control *rstc;
71
72 struct panfrost_features features;
73
74 spinlock_t as_lock;
75 unsigned long as_in_use_mask;
76 unsigned long as_alloc_mask;
77 struct list_head as_lru_list;
78
79 struct panfrost_job_slot *js;
80
81 struct panfrost_job *jobs[NUM_JOB_SLOTS];
82 struct list_head scheduled_jobs;
83
84 struct panfrost_perfcnt *perfcnt;
85
86 struct mutex sched_lock;
87 struct mutex reset_lock;
88
89 struct mutex shrinker_lock;
90 struct list_head shrinker_list;
91 struct shrinker shrinker;
92
93 struct {
94 struct devfreq *devfreq;
95 struct thermal_cooling_device *cooling;
96 unsigned long cur_freq;
97 unsigned long cur_volt;
98 struct panfrost_devfreq_slot slot[NUM_JOB_SLOTS];
99 } devfreq;
100 };
101
102 struct panfrost_mmu {
103 struct io_pgtable_cfg pgtbl_cfg;
104 struct io_pgtable_ops *pgtbl_ops;
105 int as;
106 atomic_t as_count;
107 struct list_head list;
108 };
109
110 struct panfrost_file_priv {
111 struct panfrost_device *pfdev;
112
113 struct drm_sched_entity sched_entity[NUM_JOB_SLOTS];
114
115 struct panfrost_mmu mmu;
116 struct drm_mm mm;
117 spinlock_t mm_lock;
118 };
119
120 static inline struct panfrost_device *to_panfrost_device(struct drm_device *ddev)
121 {
122 return ddev->dev_private;
123 }
124
125 static inline int panfrost_model_cmp(struct panfrost_device *pfdev, s32 id)
126 {
127 s32 match_id = pfdev->features.id;
128
129 if (match_id & 0xf000)
130 match_id &= 0xf00f;
131 return match_id - id;
132 }
133
134 static inline bool panfrost_model_is_bifrost(struct panfrost_device *pfdev)
135 {
136 return panfrost_model_cmp(pfdev, 0x1000) >= 0;
137 }
138
139 static inline bool panfrost_model_eq(struct panfrost_device *pfdev, s32 id)
140 {
141 return !panfrost_model_cmp(pfdev, id);
142 }
143
144 int panfrost_unstable_ioctl_check(void);
145
146 int panfrost_device_init(struct panfrost_device *pfdev);
147 void panfrost_device_fini(struct panfrost_device *pfdev);
148 void panfrost_device_reset(struct panfrost_device *pfdev);
149
150 int panfrost_device_resume(struct device *dev);
151 int panfrost_device_suspend(struct device *dev);
152
153 const char *panfrost_exception_name(struct panfrost_device *pfdev, u32 exception_code);
154
155 #endif