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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
From 1eb88c64a5d5fa596fc96e37b5f72e79a7da6064 Mon Sep 17 00:00:00 2001
From: Kenneth Feng <kenneth.feng@amd.com>
Date: Tue, 12 Nov 2019 16:27:11 +0800
Subject: [PATCH 4585/4736] drm/amd/powerplay: read pcie speed/width info (v2)
sysfs interface to read pcie speed&width info on navi1x.
v2: fix warning (trivial)
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 10 ++--
drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h | 8 +++
drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 57 +++++++++++++++++--
drivers/gpu/drm/amd/powerplay/navi10_ppt.h | 3 +
4 files changed, 69 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index d5335bdc709b..acbbafeea01c 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1081,10 +1081,6 @@ static int smu_smc_table_hw_init(struct smu_context *smu,
return ret;
if (adev->asic_type != CHIP_ARCTURUS) {
- ret = smu_override_pcie_parameters(smu);
- if (ret)
- return ret;
-
ret = smu_notify_display_change(smu);
if (ret)
return ret;
@@ -1113,6 +1109,12 @@ static int smu_smc_table_hw_init(struct smu_context *smu,
return ret;
}
+ if (adev->asic_type != CHIP_ARCTURUS) {
+ ret = smu_override_pcie_parameters(smu);
+ if (ret)
+ return ret;
+ }
+
ret = smu_set_default_od_settings(smu, initialize);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h b/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
index ebdf7bd79a67..716fcb274191 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h
@@ -49,6 +49,8 @@
#define SMU11_TOOL_SIZE 0x19000
+#define MAX_PCIE_CONF 2
+
#define CLK_MAP(clk, index) \
[SMU_##clk] = {1, (index)}
@@ -89,6 +91,11 @@ struct smu_11_0_dpm_table {
uint32_t max; /* MHz */
};
+struct smu_11_0_pcie_table {
+ uint8_t pcie_gen[MAX_PCIE_CONF];
+ uint8_t pcie_lane[MAX_PCIE_CONF];
+};
+
struct smu_11_0_dpm_tables {
struct smu_11_0_dpm_table soc_table;
struct smu_11_0_dpm_table gfx_table;
@@ -101,6 +108,7 @@ struct smu_11_0_dpm_tables {
struct smu_11_0_dpm_table display_table;
struct smu_11_0_dpm_table phy_table;
struct smu_11_0_dpm_table fclk_table;
+ struct smu_11_0_pcie_table pcie_table;
};
struct smu_11_0_dpm_context {
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index aca913289e3c..c94c2b67c309 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -35,6 +35,7 @@
#include "navi10_ppt.h"
#include "smu_v11_0_pptable.h"
#include "smu_v11_0_ppsmc.h"
+#include "nbio/nbio_7_4_sh_mask.h"
#include "asic_reg/mp/mp_11_0_sh_mask.h"
@@ -600,6 +601,7 @@ static int navi10_set_default_dpm_table(struct smu_context *smu)
struct smu_table_context *table_context = &smu->smu_table;
struct smu_11_0_dpm_context *dpm_context = smu_dpm->dpm_context;
PPTable_t *driver_ppt = NULL;
+ int i;
driver_ppt = table_context->driver_pptable;
@@ -630,6 +632,11 @@ static int navi10_set_default_dpm_table(struct smu_context *smu)
dpm_context->dpm_tables.phy_table.min = driver_ppt->FreqTablePhyclk[0];
dpm_context->dpm_tables.phy_table.max = driver_ppt->FreqTablePhyclk[NUM_PHYCLK_DPM_LEVELS - 1];
+ for (i = 0; i < MAX_PCIE_CONF; i++) {
+ dpm_context->dpm_tables.pcie_table.pcie_gen[i] = driver_ppt->PcieGenSpeed[i];
+ dpm_context->dpm_tables.pcie_table.pcie_lane[i] = driver_ppt->PcieLaneCount[i];
+ }
+
return 0;
}
@@ -726,16 +733,20 @@ static inline bool navi10_od_feature_is_supported(struct smu_11_0_overdrive_tabl
static int navi10_print_clk_levels(struct smu_context *smu,
enum smu_clk_type clk_type, char *buf)
{
- OverDriveTable_t *od_table;
- struct smu_11_0_overdrive_table *od_settings;
uint16_t *curve_settings;
int i, size = 0, ret = 0;
uint32_t cur_value = 0, value = 0, count = 0;
uint32_t freq_values[3] = {0};
uint32_t mark_index = 0;
struct smu_table_context *table_context = &smu->smu_table;
- od_table = (OverDriveTable_t *)table_context->overdrive_table;
- od_settings = smu->od_settings;
+ uint32_t gen_speed, lane_width;
+ struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
+ struct smu_11_0_dpm_context *dpm_context = smu_dpm->dpm_context;
+ struct amdgpu_device *adev = smu->adev;
+ PPTable_t *pptable = (PPTable_t *)table_context->driver_pptable;
+ OverDriveTable_t *od_table =
+ (OverDriveTable_t *)table_context->overdrive_table;
+ struct smu_11_0_overdrive_table *od_settings = smu->od_settings;
switch (clk_type) {
case SMU_GFXCLK:
@@ -786,6 +797,30 @@ static int navi10_print_clk_levels(struct smu_context *smu,
}
break;
+ case SMU_PCIE:
+ gen_speed = (RREG32_PCIE(smnPCIE_LC_SPEED_CNTL) &
+ PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE_MASK)
+ >> PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE__SHIFT;
+ lane_width = (RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL) &
+ PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK)
+ >> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT;
+ for (i = 0; i < NUM_LINK_LEVELS; i++)
+ size += sprintf(buf + size, "%d: %s %s %dMhz %s\n", i,
+ (dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 0) ? "2.5GT/s," :
+ (dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 1) ? "5.0GT/s," :
+ (dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 2) ? "8.0GT/s," :
+ (dpm_context->dpm_tables.pcie_table.pcie_gen[i] == 3) ? "16.0GT/s," : "",
+ (dpm_context->dpm_tables.pcie_table.pcie_lane[i] == 1) ? "x1" :
+ (dpm_context->dpm_tables.pcie_table.pcie_lane[i] == 2) ? "x2" :
+ (dpm_context->dpm_tables.pcie_table.pcie_lane[i] == 3) ? "x4" :
+ (dpm_context->dpm_tables.pcie_table.pcie_lane[i] == 4) ? "x8" :
+ (dpm_context->dpm_tables.pcie_table.pcie_lane[i] == 5) ? "x12" :
+ (dpm_context->dpm_tables.pcie_table.pcie_lane[i] == 6) ? "x16" : "",
+ pptable->LclkFreq[i],
+ (gen_speed == dpm_context->dpm_tables.pcie_table.pcie_gen[i]) &&
+ (lane_width == dpm_context->dpm_tables.pcie_table.pcie_lane[i]) ?
+ "*" : "");
+ break;
case SMU_OD_SCLK:
if (!smu->od_enabled || !od_table || !od_settings)
break;
@@ -1722,6 +1757,9 @@ static int navi10_update_pcie_parameters(struct smu_context *smu,
int ret, i;
uint32_t smu_pcie_arg;
+ struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
+ struct smu_11_0_dpm_context *dpm_context = smu_dpm->dpm_context;
+
for (i = 0; i < NUM_LINK_LEVELS; i++) {
smu_pcie_arg = (i << 16) |
((pptable->PcieGenSpeed[i] <= pcie_gen_cap) ? (pptable->PcieGenSpeed[i] << 8) :
@@ -1730,8 +1768,17 @@ static int navi10_update_pcie_parameters(struct smu_context *smu,
ret = smu_send_smc_msg_with_param(smu,
SMU_MSG_OverridePcieParameters,
smu_pcie_arg);
+
+ if (ret)
+ return ret;
+
+ if (pptable->PcieGenSpeed[i] > pcie_gen_cap)
+ dpm_context->dpm_tables.pcie_table.pcie_gen[i] = pcie_gen_cap;
+ if (pptable->PcieLaneCount[i] > pcie_width_cap)
+ dpm_context->dpm_tables.pcie_table.pcie_lane[i] = pcie_width_cap;
}
- return ret;
+
+ return 0;
}
static inline void navi10_dump_od_table(OverDriveTable_t *od_table) {
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.h b/drivers/gpu/drm/amd/powerplay/navi10_ppt.h
index fd6dda1a67a1..ec03c7992f6d 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.h
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.h
@@ -35,6 +35,9 @@
#define NAVI10_VOLTAGE_SCALE (4)
+#define smnPCIE_LC_SPEED_CNTL 0x11140290
+#define smnPCIE_LC_LINK_WIDTH_CNTL 0x11140288
+
extern void navi10_set_ppt_funcs(struct smu_context *smu);
#endif
--
2.17.1
|
