1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
/*
*
* (C) COPYRIGHT 2019-2023 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#include "mali_kbase_csf_kcpu_debugfs.h"
#include <mali_kbase.h>
#include <linux/seq_file.h>
#if IS_ENABLED(CONFIG_SYNC_FILE)
#include "mali_kbase_sync.h"
#endif
#if IS_ENABLED(CONFIG_DEBUG_FS)
/**
* kbasep_csf_kcpu_debugfs_print_cqs_waits() - Print additional info for KCPU
* queues blocked on CQS wait commands.
*
* @file: The seq_file to print to
* @kctx: The context of the KCPU queue
* @waits: Pointer to the KCPU CQS wait command info
*/
static void kbasep_csf_kcpu_debugfs_print_cqs_waits(struct seq_file *file,
struct kbase_context *kctx,
struct kbase_kcpu_command_cqs_wait_info *waits)
{
unsigned int i;
for (i = 0; i < waits->nr_objs; i++) {
struct kbase_vmap_struct *mapping;
u32 val;
char const *msg;
u32 *const cpu_ptr =
(u32 *)kbase_phy_alloc_mapping_get(kctx, waits->objs[i].addr, &mapping);
if (!cpu_ptr)
return;
val = *cpu_ptr;
kbase_phy_alloc_mapping_put(kctx, mapping);
msg = (waits->inherit_err_flags && (1U << i)) ? "true" : "false";
seq_printf(file, " %llx(%u > %u, inherit_err: %s), ", waits->objs[i].addr, val,
waits->objs[i].val, msg);
}
}
/**
* kbasep_csf_kcpu_debugfs_print_queue() - Print debug data for a KCPU queue
*
* @file: The seq_file to print to
* @kctx: The context of the KCPU queue
* @queue: Pointer to the KCPU queue
*/
static void kbasep_csf_kcpu_debugfs_print_queue(struct seq_file *file, struct kbase_context *kctx,
struct kbase_kcpu_command_queue *queue)
{
if (WARN_ON(!queue))
return;
lockdep_assert_held(&kctx->csf.kcpu_queues.lock);
seq_printf(file, "%16u, %11u, %7u, %13llu %8u", queue->num_pending_cmds,
queue->enqueue_failed, queue->command_started ? 1 : 0, queue->fence_context,
queue->fence_seqno);
if (queue->command_started) {
struct kbase_kcpu_command *cmd = &queue->commands[queue->start_offset];
switch (cmd->type) {
#if IS_ENABLED(CONFIG_SYNC_FILE)
case BASE_KCPU_COMMAND_TYPE_FENCE_WAIT: {
struct kbase_sync_fence_info info;
kbase_sync_fence_info_get(cmd->info.fence.fence, &info);
seq_printf(file, ", Fence %pK %s %s", info.fence, info.name,
kbase_sync_status_string(info.status));
break;
}
#endif
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT:
seq_puts(file, ", CQS ");
kbasep_csf_kcpu_debugfs_print_cqs_waits(file, kctx, &cmd->info.cqs_wait);
break;
default:
seq_puts(file, ", U, Unknown blocking command");
break;
}
}
seq_puts(file, "\n");
}
/**
* kbasep_csf_kcpu_debugfs_show() - Print the KCPU queues debug information
*
* @file: The seq_file for printing to
* @data: The debugfs dentry private data, a pointer to kbase_context
*
* Return: Negative error code or 0 on success.
*/
static int kbasep_csf_kcpu_debugfs_show(struct seq_file *file, void *data)
{
struct kbase_context *kctx = file->private;
unsigned long idx;
CSTD_UNUSED(data);
seq_printf(file, "MALI_CSF_KCPU_DEBUGFS_VERSION: v%u\n", MALI_CSF_KCPU_DEBUGFS_VERSION);
seq_puts(
file,
"Queue Idx(err-mode), Pending Commands, Enqueue err, Blocked, Fence context & seqno, (Wait Type, Additional info)\n");
mutex_lock(&kctx->csf.kcpu_queues.lock);
idx = find_first_bit(kctx->csf.kcpu_queues.in_use, KBASEP_MAX_KCPU_QUEUES);
while (idx < KBASEP_MAX_KCPU_QUEUES) {
struct kbase_kcpu_command_queue *queue = kctx->csf.kcpu_queues.array[idx];
seq_printf(file, "%9lu( %s ), ", idx, queue->has_error ? "InErr" : "NoErr");
kbasep_csf_kcpu_debugfs_print_queue(file, kctx, kctx->csf.kcpu_queues.array[idx]);
idx = find_next_bit(kctx->csf.kcpu_queues.in_use, KBASEP_MAX_KCPU_QUEUES, idx + 1);
}
mutex_unlock(&kctx->csf.kcpu_queues.lock);
return 0;
}
static int kbasep_csf_kcpu_debugfs_open(struct inode *in, struct file *file)
{
return single_open(file, kbasep_csf_kcpu_debugfs_show, in->i_private);
}
static const struct file_operations kbasep_csf_kcpu_debugfs_fops = {
.open = kbasep_csf_kcpu_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
void kbase_csf_kcpu_debugfs_init(struct kbase_context *kctx)
{
struct dentry *file;
const mode_t mode = 0444;
if (WARN_ON(!kctx || IS_ERR_OR_NULL(kctx->kctx_dentry)))
return;
file = debugfs_create_file("kcpu_queues", mode, kctx->kctx_dentry, kctx,
&kbasep_csf_kcpu_debugfs_fops);
if (IS_ERR_OR_NULL(file)) {
dev_warn(kctx->kbdev->dev, "Unable to create KCPU debugfs entry");
}
}
#else
/*
* Stub functions for when debugfs is disabled
*/
void kbase_csf_kcpu_debugfs_init(struct kbase_context *kctx)
{
}
#endif /* CONFIG_DEBUG_FS */
|
