This source file includes following definitions.
- host1x_debug_output
- host1x_debug_cont
- show_channel
- show_syncpts
- show_all
- host1x_debug_show_all
- host1x_debug_show
- host1x_debug_open_all
- host1x_debug_open
- host1x_debugfs_init
- host1x_debugfs_exit
- host1x_debug_init
- host1x_debug_deinit
- host1x_debug_dump
- host1x_debug_dump_syncpts
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9 #include <linux/debugfs.h>
10 #include <linux/seq_file.h>
11 #include <linux/uaccess.h>
12
13 #include <linux/io.h>
14
15 #include "dev.h"
16 #include "debug.h"
17 #include "channel.h"
18
19 unsigned int host1x_debug_trace_cmdbuf;
20
21 static pid_t host1x_debug_force_timeout_pid;
22 static u32 host1x_debug_force_timeout_val;
23 static u32 host1x_debug_force_timeout_channel;
24
25 void host1x_debug_output(struct output *o, const char *fmt, ...)
26 {
27 va_list args;
28 int len;
29
30 va_start(args, fmt);
31 len = vsnprintf(o->buf, sizeof(o->buf), fmt, args);
32 va_end(args);
33
34 o->fn(o->ctx, o->buf, len, false);
35 }
36
37 void host1x_debug_cont(struct output *o, const char *fmt, ...)
38 {
39 va_list args;
40 int len;
41
42 va_start(args, fmt);
43 len = vsnprintf(o->buf, sizeof(o->buf), fmt, args);
44 va_end(args);
45
46 o->fn(o->ctx, o->buf, len, true);
47 }
48
49 static int show_channel(struct host1x_channel *ch, void *data, bool show_fifo)
50 {
51 struct host1x *m = dev_get_drvdata(ch->dev->parent);
52 struct output *o = data;
53
54 mutex_lock(&ch->cdma.lock);
55
56 if (show_fifo)
57 host1x_hw_show_channel_fifo(m, ch, o);
58
59 host1x_hw_show_channel_cdma(m, ch, o);
60
61 mutex_unlock(&ch->cdma.lock);
62
63 return 0;
64 }
65
66 static void show_syncpts(struct host1x *m, struct output *o)
67 {
68 unsigned int i;
69
70 host1x_debug_output(o, "---- syncpts ----\n");
71
72 for (i = 0; i < host1x_syncpt_nb_pts(m); i++) {
73 u32 max = host1x_syncpt_read_max(m->syncpt + i);
74 u32 min = host1x_syncpt_load(m->syncpt + i);
75
76 if (!min && !max)
77 continue;
78
79 host1x_debug_output(o, "id %u (%s) min %d max %d\n",
80 i, m->syncpt[i].name, min, max);
81 }
82
83 for (i = 0; i < host1x_syncpt_nb_bases(m); i++) {
84 u32 base_val;
85
86 base_val = host1x_syncpt_load_wait_base(m->syncpt + i);
87 if (base_val)
88 host1x_debug_output(o, "waitbase id %u val %d\n", i,
89 base_val);
90 }
91
92 host1x_debug_output(o, "\n");
93 }
94
95 static void show_all(struct host1x *m, struct output *o, bool show_fifo)
96 {
97 unsigned int i;
98
99 host1x_hw_show_mlocks(m, o);
100 show_syncpts(m, o);
101 host1x_debug_output(o, "---- channels ----\n");
102
103 for (i = 0; i < m->info->nb_channels; ++i) {
104 struct host1x_channel *ch = host1x_channel_get_index(m, i);
105
106 if (ch) {
107 show_channel(ch, o, show_fifo);
108 host1x_channel_put(ch);
109 }
110 }
111 }
112
113 static int host1x_debug_show_all(struct seq_file *s, void *unused)
114 {
115 struct output o = {
116 .fn = write_to_seqfile,
117 .ctx = s
118 };
119
120 show_all(s->private, &o, true);
121
122 return 0;
123 }
124
125 static int host1x_debug_show(struct seq_file *s, void *unused)
126 {
127 struct output o = {
128 .fn = write_to_seqfile,
129 .ctx = s
130 };
131
132 show_all(s->private, &o, false);
133
134 return 0;
135 }
136
137 static int host1x_debug_open_all(struct inode *inode, struct file *file)
138 {
139 return single_open(file, host1x_debug_show_all, inode->i_private);
140 }
141
142 static const struct file_operations host1x_debug_all_fops = {
143 .open = host1x_debug_open_all,
144 .read = seq_read,
145 .llseek = seq_lseek,
146 .release = single_release,
147 };
148
149 static int host1x_debug_open(struct inode *inode, struct file *file)
150 {
151 return single_open(file, host1x_debug_show, inode->i_private);
152 }
153
154 static const struct file_operations host1x_debug_fops = {
155 .open = host1x_debug_open,
156 .read = seq_read,
157 .llseek = seq_lseek,
158 .release = single_release,
159 };
160
161 static void host1x_debugfs_init(struct host1x *host1x)
162 {
163 struct dentry *de = debugfs_create_dir("tegra-host1x", NULL);
164
165
166 host1x->debugfs = de;
167
168 debugfs_create_file("status", S_IRUGO, de, host1x, &host1x_debug_fops);
169 debugfs_create_file("status_all", S_IRUGO, de, host1x,
170 &host1x_debug_all_fops);
171
172 debugfs_create_u32("trace_cmdbuf", S_IRUGO|S_IWUSR, de,
173 &host1x_debug_trace_cmdbuf);
174
175 host1x_hw_debug_init(host1x, de);
176
177 debugfs_create_u32("force_timeout_pid", S_IRUGO|S_IWUSR, de,
178 &host1x_debug_force_timeout_pid);
179 debugfs_create_u32("force_timeout_val", S_IRUGO|S_IWUSR, de,
180 &host1x_debug_force_timeout_val);
181 debugfs_create_u32("force_timeout_channel", S_IRUGO|S_IWUSR, de,
182 &host1x_debug_force_timeout_channel);
183 }
184
185 static void host1x_debugfs_exit(struct host1x *host1x)
186 {
187 debugfs_remove_recursive(host1x->debugfs);
188 }
189
190 void host1x_debug_init(struct host1x *host1x)
191 {
192 if (IS_ENABLED(CONFIG_DEBUG_FS))
193 host1x_debugfs_init(host1x);
194 }
195
196 void host1x_debug_deinit(struct host1x *host1x)
197 {
198 if (IS_ENABLED(CONFIG_DEBUG_FS))
199 host1x_debugfs_exit(host1x);
200 }
201
202 void host1x_debug_dump(struct host1x *host1x)
203 {
204 struct output o = {
205 .fn = write_to_printk
206 };
207
208 show_all(host1x, &o, true);
209 }
210
211 void host1x_debug_dump_syncpts(struct host1x *host1x)
212 {
213 struct output o = {
214 .fn = write_to_printk
215 };
216
217 show_syncpts(host1x, &o);
218 }