diff options
Diffstat (limited to 'drivers/gpu/nvgpu/pmgr/pmgr.c')
-rw-r--r-- | drivers/gpu/nvgpu/pmgr/pmgr.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/pmgr/pmgr.c b/drivers/gpu/nvgpu/pmgr/pmgr.c new file mode 100644 index 00000000..2a9f9673 --- /dev/null +++ b/drivers/gpu/nvgpu/pmgr/pmgr.c | |||
@@ -0,0 +1,184 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2016-2017, 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 "pwrdev.h" | ||
25 | #include "pmgrpmu.h" | ||
26 | |||
27 | #ifdef CONFIG_DEBUG_FS | ||
28 | #include <linux/debugfs.h> | ||
29 | #include "common/linux/os_linux.h" | ||
30 | #endif | ||
31 | |||
32 | int pmgr_pwr_devices_get_power(struct gk20a *g, u32 *val) | ||
33 | { | ||
34 | struct nv_pmu_pmgr_pwr_devices_query_payload payload; | ||
35 | int status; | ||
36 | |||
37 | status = pmgr_pmu_pwr_devices_query_blocking(g, 1, &payload); | ||
38 | if (status) | ||
39 | nvgpu_err(g, "pmgr_pwr_devices_get_current_power failed %x", | ||
40 | status); | ||
41 | |||
42 | *val = payload.devices[0].powerm_w; | ||
43 | |||
44 | return status; | ||
45 | } | ||
46 | |||
47 | int pmgr_pwr_devices_get_current(struct gk20a *g, u32 *val) | ||
48 | { | ||
49 | struct nv_pmu_pmgr_pwr_devices_query_payload payload; | ||
50 | int status; | ||
51 | |||
52 | status = pmgr_pmu_pwr_devices_query_blocking(g, 1, &payload); | ||
53 | if (status) | ||
54 | nvgpu_err(g, "pmgr_pwr_devices_get_current failed %x", | ||
55 | status); | ||
56 | |||
57 | *val = payload.devices[0].currentm_a; | ||
58 | |||
59 | return status; | ||
60 | } | ||
61 | |||
62 | int pmgr_pwr_devices_get_voltage(struct gk20a *g, u32 *val) | ||
63 | { | ||
64 | struct nv_pmu_pmgr_pwr_devices_query_payload payload; | ||
65 | int status; | ||
66 | |||
67 | status = pmgr_pmu_pwr_devices_query_blocking(g, 1, &payload); | ||
68 | if (status) | ||
69 | nvgpu_err(g, "pmgr_pwr_devices_get_current_voltage failed %x", | ||
70 | status); | ||
71 | |||
72 | *val = payload.devices[0].voltageu_v; | ||
73 | |||
74 | return status; | ||
75 | } | ||
76 | |||
77 | #ifdef CONFIG_DEBUG_FS | ||
78 | static int pmgr_pwr_devices_get_power_u64(void *data, u64 *p) | ||
79 | { | ||
80 | struct gk20a *g = (struct gk20a *)data; | ||
81 | int err; | ||
82 | u32 val; | ||
83 | |||
84 | err = pmgr_pwr_devices_get_power(g, &val); | ||
85 | *p = val; | ||
86 | |||
87 | return err; | ||
88 | } | ||
89 | |||
90 | static int pmgr_pwr_devices_get_current_u64(void *data, u64 *p) | ||
91 | { | ||
92 | struct gk20a *g = (struct gk20a *)data; | ||
93 | int err; | ||
94 | u32 val; | ||
95 | |||
96 | err = pmgr_pwr_devices_get_current(g, &val); | ||
97 | *p = val; | ||
98 | |||
99 | return err; | ||
100 | } | ||
101 | |||
102 | static int pmgr_pwr_devices_get_voltage_u64(void *data, u64 *p) | ||
103 | { | ||
104 | struct gk20a *g = (struct gk20a *)data; | ||
105 | int err; | ||
106 | u32 val; | ||
107 | |||
108 | err = pmgr_pwr_devices_get_voltage(g, &val); | ||
109 | *p = val; | ||
110 | |||
111 | return err; | ||
112 | } | ||
113 | |||
114 | DEFINE_SIMPLE_ATTRIBUTE( | ||
115 | pmgr_power_ctrl_fops, pmgr_pwr_devices_get_power_u64, NULL, "%llu\n"); | ||
116 | |||
117 | DEFINE_SIMPLE_ATTRIBUTE( | ||
118 | pmgr_current_ctrl_fops, pmgr_pwr_devices_get_current_u64, NULL, "%llu\n"); | ||
119 | |||
120 | DEFINE_SIMPLE_ATTRIBUTE( | ||
121 | pmgr_voltage_ctrl_fops, pmgr_pwr_devices_get_voltage_u64, NULL, "%llu\n"); | ||
122 | |||
123 | static void pmgr_debugfs_init(struct gk20a *g) | ||
124 | { | ||
125 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
126 | struct dentry *dbgentry; | ||
127 | |||
128 | dbgentry = debugfs_create_file( | ||
129 | "power", S_IRUGO, l->debugfs, g, &pmgr_power_ctrl_fops); | ||
130 | if (!dbgentry) | ||
131 | nvgpu_err(g, "debugfs entry create failed for power"); | ||
132 | |||
133 | dbgentry = debugfs_create_file( | ||
134 | "current", S_IRUGO, l->debugfs, g, &pmgr_current_ctrl_fops); | ||
135 | if (!dbgentry) | ||
136 | nvgpu_err(g, "debugfs entry create failed for current"); | ||
137 | |||
138 | dbgentry = debugfs_create_file( | ||
139 | "voltage", S_IRUGO, l->debugfs, g, &pmgr_voltage_ctrl_fops); | ||
140 | if (!dbgentry) | ||
141 | nvgpu_err(g, "debugfs entry create failed for voltage"); | ||
142 | } | ||
143 | #endif | ||
144 | |||
145 | u32 pmgr_domain_sw_setup(struct gk20a *g) | ||
146 | { | ||
147 | u32 status; | ||
148 | |||
149 | status = pmgr_device_sw_setup(g); | ||
150 | if (status) { | ||
151 | nvgpu_err(g, | ||
152 | "error creating boardobjgrp for pmgr devices, status - 0x%x", | ||
153 | status); | ||
154 | goto exit; | ||
155 | } | ||
156 | |||
157 | status = pmgr_monitor_sw_setup(g); | ||
158 | if (status) { | ||
159 | nvgpu_err(g, | ||
160 | "error creating boardobjgrp for pmgr monitor, status - 0x%x", | ||
161 | status); | ||
162 | goto exit; | ||
163 | } | ||
164 | |||
165 | status = pmgr_policy_sw_setup(g); | ||
166 | if (status) { | ||
167 | nvgpu_err(g, | ||
168 | "error creating boardobjgrp for pmgr policy, status - 0x%x", | ||
169 | status); | ||
170 | goto exit; | ||
171 | } | ||
172 | |||
173 | #ifdef CONFIG_DEBUG_FS | ||
174 | pmgr_debugfs_init(g); | ||
175 | #endif | ||
176 | |||
177 | exit: | ||
178 | return status; | ||
179 | } | ||
180 | |||
181 | u32 pmgr_domain_pmu_setup(struct gk20a *g) | ||
182 | { | ||
183 | return pmgr_send_pmgr_tables_to_pmu(g); | ||
184 | } | ||