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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* drivers/video/tegra/host/gk20a/platform_gk20a_tegra.c
*
* GK20A Tegra Platform Interface
*
* Copyright (c) 2014-2015, 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 <linux/of_platform.h>
#include <linux/nvhost.h>
#include <linux/debugfs.h>
#include <linux/tegra-powergate.h>
#include <linux/platform_data/tegra_edp.h>
#include <uapi/linux/nvgpu.h>
#include <linux/dma-buf.h>
#include <linux/nvmap.h>
#include <linux/tegra_pm_domains.h>
#include "gk20a/platform_gk20a.h"
#include "gk20a/gk20a.h"
#include "platform_tegra.h"
static int gp10b_tegra_probe(struct platform_device *pdev)
{
struct gk20a_platform *platform = gk20a_get_platform(pdev);
struct device_node *np = pdev->dev.of_node;
struct device_node *host1x_node;
struct platform_device *host1x_pdev;
const __be32 *host1x_ptr;
host1x_ptr = of_get_property(np, "nvidia,host1x", NULL);
if (!host1x_ptr) {
gk20a_err(&pdev->dev, "host1x device not available");
return -ENOSYS;
}
host1x_node = of_find_node_by_phandle(be32_to_cpup(host1x_ptr));
host1x_pdev = of_find_device_by_node(host1x_node);
if (!host1x_pdev) {
gk20a_err(&pdev->dev, "host1x device not available");
return -ENOSYS;
}
platform->g->host1x_dev = host1x_pdev;
platform->bypass_smmu = !device_is_iommuable(&pdev->dev);
platform->disable_bigpage = platform->bypass_smmu;
platform->g->gr.t18x.ctx_vars.dump_ctxsw_stats_on_channel_close
= false;
platform->g->gr.t18x.ctx_vars.dump_ctxsw_stats_on_channel_close
= false;
platform->g->gr.t18x.ctx_vars.force_preemption_gfxp = false;
platform->g->gr.t18x.ctx_vars.force_preemption_cilp = false;
platform->g->gr.t18x.ctx_vars.debugfs_force_preemption_gfxp =
debugfs_create_bool("force_preemption_gfxp", S_IRUGO|S_IWUSR,
platform->debugfs,
&platform->g->gr.t18x.ctx_vars.force_preemption_gfxp);
platform->g->gr.t18x.ctx_vars.debugfs_force_preemption_cilp =
debugfs_create_bool("force_preemption_cilp", S_IRUGO|S_IWUSR,
platform->debugfs,
&platform->g->gr.t18x.ctx_vars.force_preemption_cilp);
platform->g->gr.t18x.ctx_vars.debugfs_dump_ctxsw_stats =
debugfs_create_bool("dump_ctxsw_stats_on_channel_close",
S_IRUGO|S_IWUSR,
platform->debugfs,
&platform->g->gr.t18x.
ctx_vars.dump_ctxsw_stats_on_channel_close);
return 0;
}
static int gp10b_tegra_late_probe(struct platform_device *pdev)
{
return 0;
}
static bool gp10b_tegra_is_railgated(struct platform_device *pdev)
{
bool ret = false;
if (!tegra_platform_is_linsim())
ret = !tegra_powergate_is_powered(TEGRA_POWERGATE_GPU);
return ret;
}
static int gp10b_tegra_railgate(struct platform_device *pdev)
{
if (!tegra_platform_is_linsim() &&
tegra_powergate_is_powered(TEGRA_POWERGATE_GPU))
tegra_powergate_partition(TEGRA_POWERGATE_GPU);
return 0;
}
static int gp10b_tegra_unrailgate(struct platform_device *pdev)
{
int ret = 0;
if (!tegra_platform_is_linsim())
ret = tegra_unpowergate_partition(TEGRA_POWERGATE_GPU);
return ret;
}
static int gp10b_tegra_suspend(struct device *dev)
{
return 0;
}
struct gk20a_platform t18x_gpu_tegra_platform = {
.has_syncpoints = true,
/* power management configuration */
.railgate_delay = 500,
.clockgate_delay = 50,
/* power management configuration */
.can_railgate = false,
.enable_elpg = false,
.probe = gp10b_tegra_probe,
.late_probe = gp10b_tegra_late_probe,
/* power management callbacks */
.suspend = gp10b_tegra_suspend,
.railgate = gp10b_tegra_railgate,
.unrailgate = gp10b_tegra_unrailgate,
.is_railgated = gp10b_tegra_is_railgated,
.busy = gk20a_tegra_busy,
.idle = gk20a_tegra_idle,
.dump_platform_dependencies = gk20a_tegra_debug_dump,
.default_big_page_size = SZ_64K,
.has_cde = true,
.secure_alloc = gk20a_tegra_secure_alloc,
.secure_page_alloc = gk20a_tegra_secure_page_alloc,
};
|
