diff options
Diffstat (limited to 'drivers/gpu/nvgpu/os/linux/ecc_sysfs.c')
-rw-r--r-- | drivers/gpu/nvgpu/os/linux/ecc_sysfs.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/os/linux/ecc_sysfs.c b/drivers/gpu/nvgpu/os/linux/ecc_sysfs.c new file mode 100644 index 00000000..0962e247 --- /dev/null +++ b/drivers/gpu/nvgpu/os/linux/ecc_sysfs.c | |||
@@ -0,0 +1,80 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms and conditions of the GNU General Public License, | ||
6 | * version 2, as published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
11 | * more details. | ||
12 | * | ||
13 | * You should have received a copy of the GNU General Public License | ||
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
15 | */ | ||
16 | |||
17 | #include <nvgpu/ecc.h> | ||
18 | |||
19 | #include "gk20a/gk20a.h" | ||
20 | #include "os_linux.h" | ||
21 | |||
22 | int nvgpu_ecc_sysfs_init(struct gk20a *g) | ||
23 | { | ||
24 | struct device *dev = dev_from_gk20a(g); | ||
25 | struct nvgpu_ecc *ecc = &g->ecc; | ||
26 | struct dev_ext_attribute *attr; | ||
27 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
28 | struct nvgpu_ecc_stat *stat; | ||
29 | int i = 0, err; | ||
30 | |||
31 | attr = nvgpu_kzalloc(g, sizeof(*attr) * ecc->stats_count); | ||
32 | if (!attr) | ||
33 | return -ENOMEM; | ||
34 | |||
35 | nvgpu_list_for_each_entry(stat, | ||
36 | &ecc->stats_list, nvgpu_ecc_stat, node) { | ||
37 | if (i >= ecc->stats_count) { | ||
38 | err = -EINVAL; | ||
39 | nvgpu_err(g, "stats_list longer than stats_count %d", | ||
40 | ecc->stats_count); | ||
41 | break; | ||
42 | } | ||
43 | sysfs_attr_init(&attr[i].attr); | ||
44 | attr[i].attr.attr.name = stat->name; | ||
45 | attr[i].attr.attr.mode = VERIFY_OCTAL_PERMISSIONS(S_IRUGO); | ||
46 | attr[i].var = &stat->counter; | ||
47 | attr[i].attr.show = device_show_int; | ||
48 | err = device_create_file(dev, &attr[i].attr); | ||
49 | if (err) { | ||
50 | nvgpu_err(g, "sysfs node create failed for %s\n", | ||
51 | stat->name); | ||
52 | break; | ||
53 | } | ||
54 | i++; | ||
55 | } | ||
56 | |||
57 | if (err) { | ||
58 | while (i-- > 0) | ||
59 | device_remove_file(dev, &attr[i].attr); | ||
60 | nvgpu_kfree(g, attr); | ||
61 | return err; | ||
62 | } | ||
63 | |||
64 | l->ecc_attrs = attr; | ||
65 | |||
66 | return 0; | ||
67 | } | ||
68 | |||
69 | void nvgpu_ecc_sysfs_remove(struct gk20a *g) | ||
70 | { | ||
71 | struct device *dev = dev_from_gk20a(g); | ||
72 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
73 | struct nvgpu_ecc *ecc = &g->ecc; | ||
74 | int i; | ||
75 | |||
76 | for (i = 0; i < ecc->stats_count; i++) | ||
77 | device_remove_file(dev, &l->ecc_attrs[i].attr); | ||
78 | nvgpu_kfree(g, l->ecc_attrs); | ||
79 | l->ecc_attrs = NULL; | ||
80 | } | ||