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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
// SPDX-License-Identifier: MIT
/*
* Copyright © 2022 Intel Corporation
*/
#include "xe_step.h"
#include <linux/bitfield.h>
#include "xe_device.h"
#include "xe_platform_types.h"
/*
* Provide mapping between PCI's revision ID to the individual GMD
* (Graphics/Media/Display) stepping values that can be compared numerically.
*
* Some platforms may have unusual ways of mapping PCI revision ID to GMD
* steppings. E.g., in some cases a higher PCI revision may translate to a
* lower stepping of the GT and/or display IP.
*
* Also note that some revisions/steppings may have been set aside as
* placeholders but never materialized in real hardware; in those cases there
* may be jumps in the revision IDs or stepping values in the tables below.
*/
/*
* Some platforms always have the same stepping value for GT and display;
* use a macro to define these to make it easier to identify the platforms
* where the two steppings can deviate.
*/
#define COMMON_GT_MEDIA_STEP(x_) \
.graphics = STEP_##x_, \
.media = STEP_##x_
#define COMMON_STEP(x_) \
COMMON_GT_MEDIA_STEP(x_), \
.graphics = STEP_##x_, \
.media = STEP_##x_, \
.display = STEP_##x_
__diag_push();
__diag_ignore_all("-Woverride-init", "Allow field overrides in table");
/* Same GT stepping between tgl_uy_revids and tgl_revids don't mean the same HW */
static const struct xe_step_info tgl_revids[] = {
[0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_B0 },
[1] = { COMMON_GT_MEDIA_STEP(B0), .display = STEP_D0 },
};
static const struct xe_step_info dg1_revids[] = {
[0] = { COMMON_STEP(A0) },
[1] = { COMMON_STEP(B0) },
};
static const struct xe_step_info adls_revids[] = {
[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_A0 },
[0x1] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_A2 },
[0x4] = { COMMON_GT_MEDIA_STEP(B0), .display = STEP_B0 },
[0x8] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_B0 },
[0xC] = { COMMON_GT_MEDIA_STEP(D0), .display = STEP_C0 },
};
static const struct xe_step_info adls_rpls_revids[] = {
[0x4] = { COMMON_GT_MEDIA_STEP(D0), .display = STEP_D0 },
[0xC] = { COMMON_GT_MEDIA_STEP(D0), .display = STEP_C0 },
};
static const struct xe_step_info adlp_revids[] = {
[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_A0 },
[0x4] = { COMMON_GT_MEDIA_STEP(B0), .display = STEP_B0 },
[0x8] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_C0 },
[0xC] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_D0 },
};
static const struct xe_step_info adlp_rpl_revids[] = {
[0x4] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_E0 },
};
static const struct xe_step_info adln_revids[] = {
[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_D0 },
};
static const struct xe_step_info dg2_g10_revid_step_tbl[] = {
[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_A0 },
[0x1] = { COMMON_GT_MEDIA_STEP(A1), .display = STEP_A0 },
[0x4] = { COMMON_GT_MEDIA_STEP(B0), .display = STEP_B0 },
[0x8] = { COMMON_GT_MEDIA_STEP(C0), .display = STEP_C0 },
};
static const struct xe_step_info dg2_g11_revid_step_tbl[] = {
[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_B0 },
[0x4] = { COMMON_GT_MEDIA_STEP(B0), .display = STEP_C0 },
[0x5] = { COMMON_GT_MEDIA_STEP(B1), .display = STEP_C0 },
};
static const struct xe_step_info dg2_g12_revid_step_tbl[] = {
[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display = STEP_C0 },
[0x1] = { COMMON_GT_MEDIA_STEP(A1), .display = STEP_C0 },
};
static const struct xe_step_info pvc_revid_step_tbl[] = {
[0x5] = { .graphics = STEP_B0 },
[0x6] = { .graphics = STEP_B1 },
[0x7] = { .graphics = STEP_C0 },
};
static const int pvc_basedie_subids[] = {
[0x3] = STEP_B0,
[0x4] = STEP_B1,
[0x5] = STEP_B3,
};
__diag_pop();
/**
* xe_step_pre_gmdid_get - Determine IP steppings from PCI revid
* @xe: Xe device
*
* Convert the PCI revid into proper IP steppings. This should only be
* used on platforms that do not have GMD_ID support.
*/
struct xe_step_info xe_step_pre_gmdid_get(struct xe_device *xe)
{
const struct xe_step_info *revids = NULL;
struct xe_step_info step = {};
u16 revid = xe->info.revid;
int size = 0;
const int *basedie_info = NULL;
int basedie_size = 0;
int baseid = 0;
if (xe->info.platform == XE_PVC) {
baseid = FIELD_GET(GENMASK(5, 3), xe->info.revid);
revid = FIELD_GET(GENMASK(2, 0), xe->info.revid);
revids = pvc_revid_step_tbl;
size = ARRAY_SIZE(pvc_revid_step_tbl);
basedie_info = pvc_basedie_subids;
basedie_size = ARRAY_SIZE(pvc_basedie_subids);
} else if (xe->info.subplatform == XE_SUBPLATFORM_DG2_G10) {
revids = dg2_g10_revid_step_tbl;
size = ARRAY_SIZE(dg2_g10_revid_step_tbl);
} else if (xe->info.subplatform == XE_SUBPLATFORM_DG2_G11) {
revids = dg2_g11_revid_step_tbl;
size = ARRAY_SIZE(dg2_g11_revid_step_tbl);
} else if (xe->info.subplatform == XE_SUBPLATFORM_DG2_G12) {
revids = dg2_g12_revid_step_tbl;
size = ARRAY_SIZE(dg2_g12_revid_step_tbl);
} else if (xe->info.platform == XE_ALDERLAKE_N) {
revids = adln_revids;
size = ARRAY_SIZE(adln_revids);
} else if (xe->info.subplatform == XE_SUBPLATFORM_ALDERLAKE_S_RPLS) {
revids = adls_rpls_revids;
size = ARRAY_SIZE(adls_rpls_revids);
} else if (xe->info.subplatform == XE_SUBPLATFORM_ALDERLAKE_P_RPLU) {
revids = adlp_rpl_revids;
size = ARRAY_SIZE(adlp_rpl_revids);
} else if (xe->info.platform == XE_ALDERLAKE_P) {
revids = adlp_revids;
size = ARRAY_SIZE(adlp_revids);
} else if (xe->info.platform == XE_ALDERLAKE_S) {
revids = adls_revids;
size = ARRAY_SIZE(adls_revids);
} else if (xe->info.platform == XE_DG1) {
revids = dg1_revids;
size = ARRAY_SIZE(dg1_revids);
} else if (xe->info.platform == XE_TIGERLAKE) {
revids = tgl_revids;
size = ARRAY_SIZE(tgl_revids);
}
/* Not using the stepping scheme for the platform yet. */
if (!revids)
return step;
if (revid < size && revids[revid].graphics != STEP_NONE) {
step = revids[revid];
} else {
drm_warn(&xe->drm, "Unknown revid 0x%02x\n", revid);
/*
* If we hit a gap in the revid array, use the information for
* the next revid.
*
* This may be wrong in all sorts of ways, especially if the
* steppings in the array are not monotonically increasing, but
* it's better than defaulting to 0.
*/
while (revid < size && revids[revid].graphics == STEP_NONE)
revid++;
if (revid < size) {
drm_dbg(&xe->drm, "Using steppings for revid 0x%02x\n",
revid);
step = revids[revid];
} else {
drm_dbg(&xe->drm, "Using future steppings\n");
step.graphics = STEP_FUTURE;
step.display = STEP_FUTURE;
}
}
drm_WARN_ON(&xe->drm, step.graphics == STEP_NONE);
if (basedie_info && basedie_size) {
if (baseid < basedie_size && basedie_info[baseid] != STEP_NONE) {
step.basedie = basedie_info[baseid];
} else {
drm_warn(&xe->drm, "Unknown baseid 0x%02x\n", baseid);
step.basedie = STEP_FUTURE;
}
}
return step;
}
/**
* xe_step_gmdid_get - Determine IP steppings from GMD_ID revid fields
* @xe: Xe device
* @graphics_gmdid_revid: value of graphics GMD_ID register's revid field
* @media_gmdid_revid: value of media GMD_ID register's revid field
*
* Convert the revid fields of the GMD_ID registers into proper IP steppings.
*
* GMD_ID revid values are currently expected to have consistent meanings on
* all platforms: major steppings (A0, B0, etc.) are 4 apart, with minor
* steppings (A1, A2, etc.) taking the values in between.
*/
struct xe_step_info xe_step_gmdid_get(struct xe_device *xe,
u32 graphics_gmdid_revid,
u32 media_gmdid_revid)
{
struct xe_step_info step = {
.graphics = STEP_A0 + graphics_gmdid_revid,
.media = STEP_A0 + media_gmdid_revid,
};
if (step.graphics >= STEP_FUTURE) {
step.graphics = STEP_FUTURE;
drm_dbg(&xe->drm, "Graphics GMD_ID revid value %d treated as future stepping\n",
graphics_gmdid_revid);
}
if (step.media >= STEP_FUTURE) {
step.media = STEP_FUTURE;
drm_dbg(&xe->drm, "Media GMD_ID revid value %d treated as future stepping\n",
media_gmdid_revid);
}
return step;
}
#define STEP_NAME_CASE(name) \
case STEP_##name: \
return #name;
const char *xe_step_name(enum xe_step step)
{
switch (step) {
STEP_NAME_LIST(STEP_NAME_CASE);
default:
return "**";
}
}
|
