diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/platform_vgpu_tegra.c')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/platform_vgpu_tegra.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/platform_vgpu_tegra.c b/drivers/gpu/nvgpu/gk20a/platform_vgpu_tegra.c new file mode 100644 index 00000000..6209188c --- /dev/null +++ b/drivers/gpu/nvgpu/gk20a/platform_vgpu_tegra.c | |||
@@ -0,0 +1,75 @@ | |||
1 | /* | ||
2 | * Tegra Virtualized GPU Platform Interface | ||
3 | * | ||
4 | * Copyright (c) 2014-2017, NVIDIA CORPORATION. All rights reserved. | ||
5 | * | ||
6 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
7 | * copy of this software and associated documentation files (the "Software"), | ||
8 | * to deal in the Software without restriction, including without limitation | ||
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
10 | * and/or sell copies of the Software, and to permit persons to whom the | ||
11 | * Software is furnished to do so, subject to the following conditions: | ||
12 | * | ||
13 | * The above copyright notice and this permission notice shall be included in | ||
14 | * all copies or substantial portions of the Software. | ||
15 | * | ||
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
22 | * DEALINGS IN THE SOFTWARE. | ||
23 | */ | ||
24 | |||
25 | #include "gk20a.h" | ||
26 | #include "common/linux/platform_gk20a.h" | ||
27 | #include "vgpu/clk_vgpu.h" | ||
28 | |||
29 | #include <nvgpu/nvhost.h> | ||
30 | |||
31 | static int gk20a_tegra_probe(struct device *dev) | ||
32 | { | ||
33 | #ifdef CONFIG_TEGRA_GK20A_NVHOST | ||
34 | struct gk20a_platform *platform = dev_get_drvdata(dev); | ||
35 | int ret; | ||
36 | |||
37 | ret = nvgpu_get_nvhost_dev(platform->g); | ||
38 | if (ret) | ||
39 | return ret; | ||
40 | |||
41 | vgpu_init_clk_support(platform->g); | ||
42 | return 0; | ||
43 | #else | ||
44 | return 0; | ||
45 | #endif | ||
46 | } | ||
47 | |||
48 | struct gk20a_platform vgpu_tegra_platform = { | ||
49 | .has_syncpoints = true, | ||
50 | .aggressive_sync_destroy_thresh = 64, | ||
51 | |||
52 | /* power management configuration */ | ||
53 | .can_railgate_init = false, | ||
54 | .can_elpg_init = false, | ||
55 | .enable_slcg = false, | ||
56 | .enable_blcg = false, | ||
57 | .enable_elcg = false, | ||
58 | .enable_elpg = false, | ||
59 | .enable_aelpg = false, | ||
60 | .can_slcg = false, | ||
61 | .can_blcg = false, | ||
62 | .can_elcg = false, | ||
63 | |||
64 | .ch_wdt_timeout_ms = 5000, | ||
65 | |||
66 | .probe = gk20a_tegra_probe, | ||
67 | |||
68 | .clk_round_rate = vgpu_clk_round_rate, | ||
69 | .get_clk_freqs = vgpu_clk_get_freqs, | ||
70 | |||
71 | /* frequency scaling configuration */ | ||
72 | .devfreq_governor = "userspace", | ||
73 | |||
74 | .virtual_dev = true, | ||
75 | }; | ||