diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c')
-rw-r--r-- | drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c b/drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c new file mode 100644 index 00000000..5035bb99 --- /dev/null +++ b/drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c | |||
@@ -0,0 +1,64 @@ | |||
1 | /* | ||
2 | * GP10B specific sysfs files | ||
3 | * | ||
4 | * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | ||
7 | * under the terms and conditions of the GNU General Public License, | ||
8 | * version 2, as published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
13 | * more details. | ||
14 | */ | ||
15 | |||
16 | #include <linux/platform_device.h> | ||
17 | |||
18 | #include "gk20a/gk20a.h" | ||
19 | #include "gp10b_sysfs.h" | ||
20 | |||
21 | #define ROOTRW (S_IRWXU|S_IRGRP|S_IROTH) | ||
22 | |||
23 | static ssize_t ecc_enable_store(struct device *dev, | ||
24 | struct device_attribute *attr, const char *buf, size_t count) | ||
25 | { | ||
26 | struct gk20a *g = get_gk20a(dev); | ||
27 | u32 ecc_mask; | ||
28 | u32 err = 0; | ||
29 | |||
30 | err = sscanf(buf, "%d", &ecc_mask); | ||
31 | if (err == 1) { | ||
32 | err = g->ops.pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd | ||
33 | (g, ecc_mask); | ||
34 | if (err) | ||
35 | dev_err(dev, "ECC override did not happen\n"); | ||
36 | } else | ||
37 | return -EINVAL; | ||
38 | return count; | ||
39 | } | ||
40 | |||
41 | static ssize_t ecc_enable_read(struct device *dev, | ||
42 | struct device_attribute *attr, char *buf) | ||
43 | { | ||
44 | struct gk20a *g = get_gk20a(dev); | ||
45 | |||
46 | return sprintf(buf, "ecc override =0x%x\n", | ||
47 | g->ops.gr.get_lrf_tex_ltc_dram_override(g)); | ||
48 | } | ||
49 | |||
50 | static DEVICE_ATTR(ecc_enable, ROOTRW, ecc_enable_read, ecc_enable_store); | ||
51 | |||
52 | void gp10b_create_sysfs(struct device *dev) | ||
53 | { | ||
54 | int error = 0; | ||
55 | |||
56 | error |= device_create_file(dev, &dev_attr_ecc_enable); | ||
57 | if (error) | ||
58 | dev_err(dev, "Failed to create sysfs attributes!\n"); | ||
59 | } | ||
60 | |||
61 | void gp10b_remove_sysfs(struct device *dev) | ||
62 | { | ||
63 | device_remove_file(dev, &dev_attr_ecc_enable); | ||
64 | } | ||