1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include "gk20a/gk20a.h"
#include "gk20a/platform_gk20a.h"
#include "vgpu/clk_vgpu.h"
#include <nvgpu/nvhost.h>
#include <linux/platform_device.h>
static int gv11b_vgpu_probe(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct gk20a_platform *platform = dev_get_drvdata(dev);
struct resource *r;
void __iomem *regs;
struct fifo_gk20a *f = &platform->g->fifo;
int ret;
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usermode");
if (!r) {
dev_err(dev, "failed to get usermode regs\n");
return -ENXIO;
}
regs = devm_ioremap_resource(dev, r);
if (IS_ERR(regs)) {
dev_err(dev, "failed to map usermode regs\n");
return PTR_ERR(regs);
}
f->t19x.usermode_regs = regs;
#ifdef CONFIG_TEGRA_GK20A_NVHOST
ret = nvgpu_get_nvhost_dev(platform->g);
if (ret) {
f->t19x.usermode_regs = NULL;
return ret;
}
#endif
vgpu_init_clk_support(platform->g);
return 0;
}
struct gk20a_platform gv11b_vgpu_tegra_platform = {
.has_syncpoints = false,
.aggressive_sync_destroy_thresh = 64,
/* power management configuration */
.can_railgate_init = false,
.can_elpg_init = false,
.enable_slcg = false,
.enable_blcg = false,
.enable_elcg = false,
.enable_elpg = false,
.enable_aelpg = false,
.ch_wdt_timeout_ms = 5000,
.probe = gv11b_vgpu_probe,
.clk_round_rate = vgpu_clk_round_rate,
.get_clk_freqs = vgpu_clk_get_freqs,
/* frequency scaling configuration */
.devfreq_governor = "userspace",
.virtual_dev = true,
};
|
