diff options
Diffstat (limited to 'drivers/gpu/nvgpu/common/linux/debug_hal.c')
-rw-r--r-- | drivers/gpu/nvgpu/common/linux/debug_hal.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/drivers/gpu/nvgpu/common/linux/debug_hal.c b/drivers/gpu/nvgpu/common/linux/debug_hal.c deleted file mode 100644 index 031e335e..00000000 --- a/drivers/gpu/nvgpu/common/linux/debug_hal.c +++ /dev/null | |||
@@ -1,95 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2017 NVIDIA Corporation. All rights reserved. | ||
3 | * | ||
4 | * This software is licensed under the terms of the GNU General Public | ||
5 | * License version 2, as published by the Free Software Foundation, and | ||
6 | * may be copied, distributed, and modified under those terms. | ||
7 | * | ||
8 | * This program is distributed in the hope that it will be useful, | ||
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
11 | * GNU General Public License for more details. | ||
12 | * | ||
13 | */ | ||
14 | |||
15 | #include "debug_hal.h" | ||
16 | #include "os_linux.h" | ||
17 | |||
18 | #include <linux/debugfs.h> | ||
19 | #include <linux/seq_file.h> | ||
20 | |||
21 | /* Format and print a single function pointer to the specified seq_file. */ | ||
22 | static void __hal_print_op(struct seq_file *s, void *op_ptr) | ||
23 | { | ||
24 | seq_printf(s, "%pF\n", op_ptr); | ||
25 | } | ||
26 | |||
27 | /* | ||
28 | * Prints an array of function pointer addresses in op_ptrs to the | ||
29 | * specified seq_file | ||
30 | */ | ||
31 | static void __hal_print_ops(struct seq_file *s, void **op_ptrs, int num_ops) | ||
32 | { | ||
33 | int i; | ||
34 | |||
35 | for (i = 0; i < num_ops; i++) | ||
36 | __hal_print_op(s, op_ptrs[i]); | ||
37 | } | ||
38 | |||
39 | /* | ||
40 | * Show file operation, which generates content of the file once. Prints a list | ||
41 | * of gpu operations as defined by gops and the corresponding function pointer | ||
42 | * destination addresses. Relies on no compiler reordering of struct fields and | ||
43 | * assumption that all members are function pointers. | ||
44 | */ | ||
45 | static int __hal_show(struct seq_file *s, void *unused) | ||
46 | { | ||
47 | struct gpu_ops *gops = s->private; | ||
48 | |||
49 | __hal_print_ops(s, (void **)gops, sizeof(*gops) / sizeof(void *)); | ||
50 | |||
51 | return 0; | ||
52 | } | ||
53 | |||
54 | static int __hal_open(struct inode *inode, struct file *file) | ||
55 | { | ||
56 | return single_open(file, __hal_show, inode->i_private); | ||
57 | } | ||
58 | |||
59 | static const struct file_operations __hal_fops = { | ||
60 | .open = __hal_open, | ||
61 | .read = seq_read, | ||
62 | .llseek = seq_lseek, | ||
63 | .release = single_release, | ||
64 | }; | ||
65 | |||
66 | void nvgpu_hal_debugfs_fini(struct gk20a *g) | ||
67 | { | ||
68 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
69 | |||
70 | if (!(l->debugfs_hal == NULL)) | ||
71 | debugfs_remove_recursive(l->debugfs_hal); | ||
72 | } | ||
73 | |||
74 | void nvgpu_hal_debugfs_init(struct gk20a *g) | ||
75 | { | ||
76 | struct dentry *d; | ||
77 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
78 | |||
79 | if (!l->debugfs) | ||
80 | return; | ||
81 | l->debugfs_hal = debugfs_create_dir("hal", l->debugfs); | ||
82 | if (IS_ERR_OR_NULL(l->debugfs_hal)) { | ||
83 | l->debugfs_hal = NULL; | ||
84 | return; | ||
85 | } | ||
86 | |||
87 | /* Pass along reference to the gpu_ops struct as private data */ | ||
88 | d = debugfs_create_file("gops", S_IRUGO, l->debugfs_hal, | ||
89 | &g->ops, &__hal_fops); | ||
90 | if (!d) { | ||
91 | nvgpu_err(g, "%s: Failed to make debugfs node\n", __func__); | ||
92 | debugfs_remove_recursive(l->debugfs_hal); | ||
93 | return; | ||
94 | } | ||
95 | } | ||