diff options
Diffstat (limited to 'drivers/gpu/nvgpu/vgpu/gv11b/platform_gv11b_vgpu_tegra.c')
-rw-r--r-- | drivers/gpu/nvgpu/vgpu/gv11b/platform_gv11b_vgpu_tegra.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/vgpu/gv11b/platform_gv11b_vgpu_tegra.c b/drivers/gpu/nvgpu/vgpu/gv11b/platform_gv11b_vgpu_tegra.c new file mode 100644 index 00000000..fea473a7 --- /dev/null +++ b/drivers/gpu/nvgpu/vgpu/gv11b/platform_gv11b_vgpu_tegra.c | |||
@@ -0,0 +1,105 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2017, 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 "gk20a/gk20a.h" | ||
24 | #include "vgpu/clk_vgpu.h" | ||
25 | #include "common/linux/platform_gk20a.h" | ||
26 | #include "common/linux/os_linux.h" | ||
27 | |||
28 | #include <nvgpu/nvhost.h> | ||
29 | #include <nvgpu/nvhost_t19x.h> | ||
30 | |||
31 | #include <linux/platform_device.h> | ||
32 | |||
33 | static int gv11b_vgpu_probe(struct device *dev) | ||
34 | { | ||
35 | struct platform_device *pdev = to_platform_device(dev); | ||
36 | struct gk20a_platform *platform = dev_get_drvdata(dev); | ||
37 | struct resource *r; | ||
38 | void __iomem *regs; | ||
39 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(platform->g); | ||
40 | struct gk20a *g = platform->g; | ||
41 | int ret; | ||
42 | |||
43 | r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usermode"); | ||
44 | if (!r) { | ||
45 | dev_err(dev, "failed to get usermode regs\n"); | ||
46 | return -ENXIO; | ||
47 | } | ||
48 | regs = devm_ioremap_resource(dev, r); | ||
49 | if (IS_ERR(regs)) { | ||
50 | dev_err(dev, "failed to map usermode regs\n"); | ||
51 | return PTR_ERR(regs); | ||
52 | } | ||
53 | l->t19x.usermode_regs = regs; | ||
54 | |||
55 | #ifdef CONFIG_TEGRA_GK20A_NVHOST | ||
56 | ret = nvgpu_get_nvhost_dev(g); | ||
57 | if (ret) { | ||
58 | l->t19x.usermode_regs = NULL; | ||
59 | return ret; | ||
60 | } | ||
61 | |||
62 | ret = nvgpu_nvhost_syncpt_unit_interface_get_aperture(g->nvhost_dev, | ||
63 | &g->syncpt_unit_base, | ||
64 | &g->syncpt_unit_size); | ||
65 | if (ret) { | ||
66 | dev_err(dev, "Failed to get syncpt interface"); | ||
67 | return -ENOSYS; | ||
68 | } | ||
69 | g->syncpt_size = nvgpu_nvhost_syncpt_unit_interface_get_byte_offset(1); | ||
70 | nvgpu_info(g, "syncpt_unit_base %llx syncpt_unit_size %zx size %x\n", | ||
71 | g->syncpt_unit_base, g->syncpt_unit_size, g->syncpt_size); | ||
72 | #endif | ||
73 | vgpu_init_clk_support(platform->g); | ||
74 | |||
75 | return 0; | ||
76 | } | ||
77 | |||
78 | struct gk20a_platform gv11b_vgpu_tegra_platform = { | ||
79 | .has_syncpoints = true, | ||
80 | .aggressive_sync_destroy_thresh = 64, | ||
81 | |||
82 | /* power management configuration */ | ||
83 | .can_railgate_init = false, | ||
84 | .can_elpg_init = false, | ||
85 | .enable_slcg = false, | ||
86 | .enable_blcg = false, | ||
87 | .enable_elcg = false, | ||
88 | .enable_elpg = false, | ||
89 | .enable_aelpg = false, | ||
90 | .can_slcg = false, | ||
91 | .can_blcg = false, | ||
92 | .can_elcg = false, | ||
93 | |||
94 | .ch_wdt_timeout_ms = 5000, | ||
95 | |||
96 | .probe = gv11b_vgpu_probe, | ||
97 | |||
98 | .clk_round_rate = vgpu_clk_round_rate, | ||
99 | .get_clk_freqs = vgpu_clk_get_freqs, | ||
100 | |||
101 | /* frequency scaling configuration */ | ||
102 | .devfreq_governor = "userspace", | ||
103 | |||
104 | .virtual_dev = true, | ||
105 | }; | ||