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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
From bc12c4951cfbc84abe6d9099e660a327c6cbbc84 Mon Sep 17 00:00:00 2001
From: Chengming Gui <Jack.Gui@amd.com>
Date: Tue, 22 Jan 2019 17:56:16 +0800
Subject: [PATCH 1478/2940] drm/amd/powerplay: implement power1_cap and
power1_cap_max interface for SMU11 (v2)
add get_power_limit and set_power_limit functions
to support hwmon for SMU11.
v2: fix the code style issue.
Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 14 +++++--
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 2 +-
.../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 9 ++--
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 42 ++++++++++++++-----
4 files changed, 49 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index d140b3dce676..c3508a7c8bfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1761,7 +1761,10 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
struct amdgpu_device *adev = dev_get_drvdata(dev);
uint32_t limit = 0;
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
+ if (is_support_sw_smu(adev)) {
+ smu_get_power_limit(&adev->smu, &limit, true);
+ return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
+ } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, true);
return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
} else {
@@ -1776,7 +1779,10 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
struct amdgpu_device *adev = dev_get_drvdata(dev);
uint32_t limit = 0;
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
+ if (is_support_sw_smu(adev)) {
+ smu_get_power_limit(&adev->smu, &limit, false);
+ return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
+ } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, false);
return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
} else {
@@ -1799,7 +1805,9 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
return err;
value = value / 1000000; /* convert to Watt */
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit) {
+ if (is_support_sw_smu(adev)) {
+ adev->smu.funcs->set_power_limit(&adev->smu, value);
+ } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit) {
err = adev->powerplay.pp_funcs->set_power_limit(adev->powerplay.pp_handle, value);
if (err)
return err;
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index ed2f7ccd2fb5..ed2d1996455e 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -619,7 +619,7 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
if (ret)
return ret;
- ret = smu_get_power_limit(smu);
+ ret = smu_get_power_limit(smu, &smu->default_power_limit, false);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 2cc7129b53aa..d49bdee76f0e 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -484,7 +484,8 @@ struct smu_funcs
int (*disable_all_mask)(struct smu_context *smu);
int (*update_feature_enable_state)(struct smu_context *smu, uint32_t feature_id, bool enabled);
int (*notify_display_change)(struct smu_context *smu);
- int (*get_power_limit)(struct smu_context *smu);
+ int (*get_power_limit)(struct smu_context *smu, uint32_t *limit, bool def);
+ int (*set_power_limit)(struct smu_context *smu, uint32_t n);
int (*get_current_clk_freq)(struct smu_context *smu, uint32_t clk_id, uint32_t *value);
int (*init_max_sustainable_clocks)(struct smu_context *smu);
int (*start_thermal_control)(struct smu_context *smu);
@@ -619,8 +620,10 @@ struct smu_funcs
((smu)->ppt_funcs->set_default_od8_settings ? (smu)->ppt_funcs->set_default_od8_settings((smu)) : 0)
#define smu_update_specified_od8_value(smu, index, value) \
((smu)->ppt_funcs->update_specified_od8_value ? (smu)->ppt_funcs->update_specified_od8_value((smu), (index), (value)) : 0)
-#define smu_get_power_limit(smu) \
- ((smu)->funcs->get_power_limit? (smu)->funcs->get_power_limit((smu)) : 0)
+#define smu_get_power_limit(smu, limit, def) \
+ ((smu)->funcs->get_power_limit ? (smu)->funcs->get_power_limit((smu), (limit), (def)) : 0)
+#define smu_set_power_limit(smu, limit) \
+ ((smu)->funcs->set_power_limit ? (smu)->funcs->set_power_limit((smu), (limit)) : 0)
#define smu_get_current_clk_freq(smu, clk_id, value) \
((smu)->funcs->get_current_clk_freq? (smu)->funcs->get_current_clk_freq((smu), (clk_id), (value)) : 0)
#define smu_print_clk_levels(smu, type, buf) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 6333c185385c..aee8d27a5473 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -873,23 +873,42 @@ static int smu_v11_0_init_max_sustainable_clocks(struct smu_context *smu)
return 0;
}
-static int smu_v11_0_get_power_limit(struct smu_context *smu)
+static int smu_v11_0_get_power_limit(struct smu_context *smu,
+ uint32_t *limit,
+ bool get_default)
{
- int ret;
- uint32_t power_limit_value;
+ int ret = 0;
- ret = smu_send_smc_msg_with_param(smu,
- SMU_MSG_GetPptLimit,
- POWER_SOURCE_AC << 16);
+ if (get_default) {
+ mutex_lock(&smu->mutex);
+ *limit = smu->default_power_limit;
+ mutex_unlock(&smu->mutex);
+ } else {
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetPptLimit,
+ POWER_SOURCE_AC << 16);
+ if (ret) {
+ pr_err("[%s] get PPT limit failed!", __func__);
+ return ret;
+ }
+ smu_read_smc_arg(smu, limit);
+ smu->power_limit = *limit;
+ }
+
+ return ret;
+}
+
+static int smu_v11_0_set_power_limit(struct smu_context *smu, uint32_t n)
+{
+ int ret = 0;
+
+ if (smu_feature_is_enabled(smu, FEATURE_PPT_BIT))
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetPptLimit, n);
if (ret) {
- pr_err("[GetPptLimit] get default PPT limit failed!");
+ pr_err("[%s] Set power limit Failed!", __func__);
return ret;
}
- smu_read_smc_arg(smu, &power_limit_value);
- smu->power_limit = smu->default_power_limit = power_limit_value;
-
- return 0;
+ return ret;
}
static int smu_v11_0_get_current_clk_freq(struct smu_context *smu, uint32_t clk_id, uint32_t *value)
@@ -1760,6 +1779,7 @@ static const struct smu_funcs smu_v11_0_funcs = {
.update_feature_enable_state = smu_v11_0_update_feature_enable_state,
.notify_display_change = smu_v11_0_notify_display_change,
.get_power_limit = smu_v11_0_get_power_limit,
+ .set_power_limit = smu_v11_0_set_power_limit,
.get_current_clk_freq = smu_v11_0_get_current_clk_freq,
.init_max_sustainable_clocks = smu_v11_0_init_max_sustainable_clocks,
.start_thermal_control = smu_v11_0_start_thermal_control,
--
2.17.1
|
