diff options
Diffstat (limited to 'drivers/gpu/nvgpu/common/power_features/power_features.c')
-rw-r--r-- | drivers/gpu/nvgpu/common/power_features/power_features.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/common/power_features/power_features.c b/drivers/gpu/nvgpu/common/power_features/power_features.c new file mode 100644 index 00000000..792fdc01 --- /dev/null +++ b/drivers/gpu/nvgpu/common/power_features/power_features.c | |||
@@ -0,0 +1,66 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | * copy of this software and associated documentation files (the "Software"), | ||
6 | * to deal in the Software without restriction, including without limitation | ||
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | * and/or sell copies of the Software, and to permit persons to whom the | ||
9 | * Software is furnished to do so, subject to the following conditions: | ||
10 | * | ||
11 | * The above copyright notice and this permission notice shall be included in | ||
12 | * all copies or substantial portions of the Software. | ||
13 | * | ||
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | * DEALINGS IN THE SOFTWARE. | ||
21 | */ | ||
22 | |||
23 | #include <nvgpu/gk20a.h> | ||
24 | #include <nvgpu/power_features/cg.h> | ||
25 | #include <nvgpu/power_features/pg.h> | ||
26 | #include <nvgpu/power_features/power_features.h> | ||
27 | |||
28 | int nvgpu_cg_pg_disable(struct gk20a *g) | ||
29 | { | ||
30 | int err = 0; | ||
31 | |||
32 | nvgpu_log_fn(g, " "); | ||
33 | |||
34 | /* disable elpg before clock gating */ | ||
35 | err = nvgpu_pg_elpg_disable(g); | ||
36 | if (err != 0) { | ||
37 | nvgpu_err(g, "failed to set disable elpg"); | ||
38 | } | ||
39 | nvgpu_cg_slcg_gr_perf_ltc_load_disable(g); | ||
40 | |||
41 | nvgpu_cg_blcg_mode_disable(g); | ||
42 | |||
43 | nvgpu_cg_elcg_disable(g); | ||
44 | |||
45 | return err; | ||
46 | } | ||
47 | |||
48 | int nvgpu_cg_pg_enable(struct gk20a *g) | ||
49 | { | ||
50 | int err = 0; | ||
51 | |||
52 | nvgpu_log_fn(g, " "); | ||
53 | |||
54 | nvgpu_cg_elcg_enable(g); | ||
55 | |||
56 | nvgpu_cg_blcg_mode_enable(g); | ||
57 | |||
58 | nvgpu_cg_slcg_gr_perf_ltc_load_enable(g); | ||
59 | |||
60 | err = nvgpu_pg_elpg_enable(g); | ||
61 | if (err != 0) { | ||
62 | nvgpu_err(g, "failed to set enable elpg"); | ||
63 | } | ||
64 | |||
65 | return err; | ||
66 | } | ||