diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gp106/therm_gp106.c')
-rw-r--r-- | drivers/gpu/nvgpu/gp106/therm_gp106.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gp106/therm_gp106.c b/drivers/gpu/nvgpu/gp106/therm_gp106.c new file mode 100644 index 00000000..ab5563cc --- /dev/null +++ b/drivers/gpu/nvgpu/gp106/therm_gp106.c | |||
@@ -0,0 +1,141 @@ | |||
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 | |||
25 | #include "therm_gp106.h" | ||
26 | #include "therm/thrmpmu.h" | ||
27 | |||
28 | #ifdef CONFIG_DEBUG_FS | ||
29 | #include <linux/debugfs.h> | ||
30 | #include "common/linux/os_linux.h" | ||
31 | #endif | ||
32 | |||
33 | #include <nvgpu/hw/gp106/hw_therm_gp106.h> | ||
34 | |||
35 | void gp106_get_internal_sensor_limits(s32 *max_24_8, s32 *min_24_8) | ||
36 | { | ||
37 | *max_24_8 = (0x87 << 8); | ||
38 | *min_24_8 = ((-216) << 8); | ||
39 | } | ||
40 | |||
41 | int gp106_get_internal_sensor_curr_temp(struct gk20a *g, u32 *temp_f24_8) | ||
42 | { | ||
43 | int err = 0; | ||
44 | u32 readval; | ||
45 | |||
46 | readval = gk20a_readl(g, therm_temp_sensor_tsense_r()); | ||
47 | |||
48 | if (!(therm_temp_sensor_tsense_state_v(readval) & | ||
49 | therm_temp_sensor_tsense_state_valid_v())) { | ||
50 | nvgpu_err(g, | ||
51 | "Attempt to read temperature while sensor is OFF!"); | ||
52 | err = -EINVAL; | ||
53 | } else if (therm_temp_sensor_tsense_state_v(readval) & | ||
54 | therm_temp_sensor_tsense_state_shadow_v()) { | ||
55 | nvgpu_err(g, "Reading temperature from SHADOWed sensor!"); | ||
56 | } | ||
57 | |||
58 | // Convert from F9.5 -> F27.5 -> F24.8. | ||
59 | readval &= therm_temp_sensor_tsense_fixed_point_m(); | ||
60 | |||
61 | *temp_f24_8 = readval; | ||
62 | |||
63 | return err; | ||
64 | } | ||
65 | |||
66 | #ifdef CONFIG_DEBUG_FS | ||
67 | static int therm_get_internal_sensor_curr_temp(void *data, u64 *val) | ||
68 | { | ||
69 | struct gk20a *g = (struct gk20a *)data; | ||
70 | u32 readval; | ||
71 | int err; | ||
72 | |||
73 | err = gp106_get_internal_sensor_curr_temp(g, &readval); | ||
74 | if (!err) | ||
75 | *val = readval; | ||
76 | |||
77 | return err; | ||
78 | } | ||
79 | DEFINE_SIMPLE_ATTRIBUTE(therm_ctrl_fops, therm_get_internal_sensor_curr_temp, NULL, "%llu\n"); | ||
80 | |||
81 | void gp106_therm_debugfs_init(struct gk20a *g) | ||
82 | { | ||
83 | struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); | ||
84 | struct dentry *dbgentry; | ||
85 | |||
86 | dbgentry = debugfs_create_file( | ||
87 | "temp", S_IRUGO, l->debugfs, g, &therm_ctrl_fops); | ||
88 | if (!dbgentry) | ||
89 | nvgpu_err(g, "debugfs entry create failed for therm_curr_temp"); | ||
90 | } | ||
91 | #endif | ||
92 | |||
93 | int gp106_elcg_init_idle_filters(struct gk20a *g) | ||
94 | { | ||
95 | u32 gate_ctrl, idle_filter; | ||
96 | u32 engine_id; | ||
97 | u32 active_engine_id = 0; | ||
98 | struct fifo_gk20a *f = &g->fifo; | ||
99 | |||
100 | gk20a_dbg_fn(""); | ||
101 | |||
102 | for (engine_id = 0; engine_id < f->num_engines; engine_id++) { | ||
103 | active_engine_id = f->active_engines_list[engine_id]; | ||
104 | gate_ctrl = gk20a_readl(g, therm_gate_ctrl_r(active_engine_id)); | ||
105 | |||
106 | gate_ctrl = set_field(gate_ctrl, | ||
107 | therm_gate_ctrl_eng_idle_filt_exp_m(), | ||
108 | therm_gate_ctrl_eng_idle_filt_exp_f(2)); | ||
109 | gate_ctrl = set_field(gate_ctrl, | ||
110 | therm_gate_ctrl_eng_idle_filt_mant_m(), | ||
111 | therm_gate_ctrl_eng_idle_filt_mant_f(1)); | ||
112 | gate_ctrl = set_field(gate_ctrl, | ||
113 | therm_gate_ctrl_eng_delay_before_m(), | ||
114 | therm_gate_ctrl_eng_delay_before_f(0)); | ||
115 | gk20a_writel(g, therm_gate_ctrl_r(active_engine_id), gate_ctrl); | ||
116 | } | ||
117 | |||
118 | /* default fecs_idle_filter to 0 */ | ||
119 | idle_filter = gk20a_readl(g, therm_fecs_idle_filter_r()); | ||
120 | idle_filter &= ~therm_fecs_idle_filter_value_m(); | ||
121 | gk20a_writel(g, therm_fecs_idle_filter_r(), idle_filter); | ||
122 | /* default hubmmu_idle_filter to 0 */ | ||
123 | idle_filter = gk20a_readl(g, therm_hubmmu_idle_filter_r()); | ||
124 | idle_filter &= ~therm_hubmmu_idle_filter_value_m(); | ||
125 | gk20a_writel(g, therm_hubmmu_idle_filter_r(), idle_filter); | ||
126 | |||
127 | gk20a_dbg_fn("done"); | ||
128 | return 0; | ||
129 | } | ||
130 | |||
131 | u32 gp106_configure_therm_alert(struct gk20a *g, s32 curr_warn_temp) | ||
132 | { | ||
133 | u32 err = 0; | ||
134 | |||
135 | if (g->curr_warn_temp != curr_warn_temp) { | ||
136 | g->curr_warn_temp = curr_warn_temp; | ||
137 | err = therm_configure_therm_alert(g); | ||
138 | } | ||
139 | |||
140 | return err; | ||
141 | } | ||