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drm/amdgpu: no rlcg legacy read in SRIOV case
[linux-block.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_xgmi.c
CommitLineData
fb30fc59
SL		 1/*
2 * Copyright 2018 Advanced Micro Devices, Inc.
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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 *
23 */
24#include <linux/list.h>
25#include "amdgpu.h"
5183411b 26#include "amdgpu_xgmi.h"
029fbd43 27#include "amdgpu_ras.h"
18f36157 28#include "soc15.h"
24f9aacf 29#include "df/df_3_6_offset.h"
18f36157
HZ		 30#include "xgmi/xgmi_4_0_0_smn.h"
31#include "xgmi/xgmi_4_0_0_sh_mask.h"
32#include "wafl/wafl2_4_0_0_smn.h"
33#include "wafl/wafl2_4_0_0_sh_mask.h"
fb30fc59 34
3c4ff2dc
JC		 35#define smnPCS_XGMI23_PCS_ERROR_STATUS 0x11a01210
36#define smnPCS_XGMI3X16_PCS_ERROR_STATUS 0x11a0020c
37#define smnPCS_GOPX1_PCS_ERROR_STATUS 0x12200210
38
fb30fc59
SL		 39static DEFINE_MUTEX(xgmi_mutex);
40
fb30fc59
SL		 41#define AMDGPU_MAX_XGMI_DEVICE_PER_HIVE 4
42
d95e8e97 43static LIST_HEAD(xgmi_hive_list);
fb30fc59 44
18f36157
HZ		 45static const int xgmi_pcs_err_status_reg_vg20[] = {
46 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS,
47 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS + 0x100000,
48};
49
50static const int wafl_pcs_err_status_reg_vg20[] = {
51 smnPCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS,
52 smnPCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS + 0x100000,
53};
54
a61f41b1
HZ		 55static const int xgmi_pcs_err_status_reg_arct[] = {
56 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS,
57 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS + 0x100000,
58 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS + 0x500000,
59 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS + 0x600000,
60 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS + 0x700000,
61 smnXGMI0_PCS_GOPX16_PCS_ERROR_STATUS + 0x800000,
62};
63
64/* same as vg20*/
65static const int wafl_pcs_err_status_reg_arct[] = {
66 smnPCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS,
67 smnPCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS + 0x100000,
68};
69
3c4ff2dc
JC		 70static const int xgmi23_pcs_err_status_reg_aldebaran[] = {
71 smnPCS_XGMI23_PCS_ERROR_STATUS,
72 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x100000,
73 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x200000,
74 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x300000,
75 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x400000,
76 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x500000,
77 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x600000,
78 smnPCS_XGMI23_PCS_ERROR_STATUS + 0x700000
79};
80
81static const int xgmi3x16_pcs_err_status_reg_aldebaran[] = {
82 smnPCS_XGMI3X16_PCS_ERROR_STATUS,
83 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x100000,
84 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x200000,
85 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x300000,
86 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x400000,
87 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x500000,
88 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x600000,
89 smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x700000
90};
91
92static const int walf_pcs_err_status_reg_aldebaran[] = {
93 smnPCS_GOPX1_PCS_ERROR_STATUS,
94 smnPCS_GOPX1_PCS_ERROR_STATUS + 0x100000
95};
96
18f36157
HZ		 97static const struct amdgpu_pcs_ras_field xgmi_pcs_ras_fields[] = {
98 {"XGMI PCS DataLossErr",
99 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, DataLossErr)},
100 {"XGMI PCS TrainingErr",
101 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, TrainingErr)},
102 {"XGMI PCS CRCErr",
103 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, CRCErr)},
104 {"XGMI PCS BERExceededErr",
105 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, BERExceededErr)},
106 {"XGMI PCS TxMetaDataErr",
107 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, TxMetaDataErr)},
108 {"XGMI PCS ReplayBufParityErr",
109 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, ReplayBufParityErr)},
110 {"XGMI PCS DataParityErr",
111 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, DataParityErr)},
112 {"XGMI PCS ReplayFifoOverflowErr",
113 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, ReplayFifoOverflowErr)},
114 {"XGMI PCS ReplayFifoUnderflowErr",
115 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, ReplayFifoUnderflowErr)},
116 {"XGMI PCS ElasticFifoOverflowErr",
117 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, ElasticFifoOverflowErr)},
118 {"XGMI PCS DeskewErr",
119 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, DeskewErr)},
120 {"XGMI PCS DataStartupLimitErr",
121 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, DataStartupLimitErr)},
122 {"XGMI PCS FCInitTimeoutErr",
123 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, FCInitTimeoutErr)},
124 {"XGMI PCS RecoveryTimeoutErr",
125 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, RecoveryTimeoutErr)},
126 {"XGMI PCS ReadySerialTimeoutErr",
127 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, ReadySerialTimeoutErr)},
128 {"XGMI PCS ReadySerialAttemptErr",
129 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, ReadySerialAttemptErr)},
130 {"XGMI PCS RecoveryAttemptErr",
131 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, RecoveryAttemptErr)},
132 {"XGMI PCS RecoveryRelockAttemptErr",
133 SOC15_REG_FIELD(XGMI0_PCS_GOPX16_PCS_ERROR_STATUS, RecoveryRelockAttemptErr)},
134};
135
136static const struct amdgpu_pcs_ras_field wafl_pcs_ras_fields[] = {
137 {"WAFL PCS DataLossErr",
138 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, DataLossErr)},
139 {"WAFL PCS TrainingErr",
140 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, TrainingErr)},
141 {"WAFL PCS CRCErr",
142 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, CRCErr)},
143 {"WAFL PCS BERExceededErr",
144 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, BERExceededErr)},
145 {"WAFL PCS TxMetaDataErr",
146 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, TxMetaDataErr)},
147 {"WAFL PCS ReplayBufParityErr",
148 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, ReplayBufParityErr)},
149 {"WAFL PCS DataParityErr",
150 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, DataParityErr)},
151 {"WAFL PCS ReplayFifoOverflowErr",
152 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, ReplayFifoOverflowErr)},
153 {"WAFL PCS ReplayFifoUnderflowErr",
154 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, ReplayFifoUnderflowErr)},
155 {"WAFL PCS ElasticFifoOverflowErr",
156 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, ElasticFifoOverflowErr)},
157 {"WAFL PCS DeskewErr",
158 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, DeskewErr)},
159 {"WAFL PCS DataStartupLimitErr",
160 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, DataStartupLimitErr)},
161 {"WAFL PCS FCInitTimeoutErr",
162 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, FCInitTimeoutErr)},
163 {"WAFL PCS RecoveryTimeoutErr",
164 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, RecoveryTimeoutErr)},
165 {"WAFL PCS ReadySerialTimeoutErr",
166 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, ReadySerialTimeoutErr)},
167 {"WAFL PCS ReadySerialAttemptErr",
168 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, ReadySerialAttemptErr)},
169 {"WAFL PCS RecoveryAttemptErr",
170 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, RecoveryAttemptErr)},
171 {"WAFL PCS RecoveryRelockAttemptErr",
172 SOC15_REG_FIELD(PCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS, RecoveryRelockAttemptErr)},
173};
174
1c1e53f7
TSD		 175/**
176 * DOC: AMDGPU XGMI Support
177 *
178 * XGMI is a high speed interconnect that joins multiple GPU cards
179 * into a homogeneous memory space that is organized by a collective
180 * hive ID and individual node IDs, both of which are 64-bit numbers.
181 *
182 * The file xgmi_device_id contains the unique per GPU device ID and
183 * is stored in the /sys/class/drm/card${cardno}/device/ directory.
184 *
185 * Inside the device directory a sub-directory 'xgmi_hive_info' is
186 * created which contains the hive ID and the list of nodes.
187 *
188 * The hive ID is stored in:
189 * /sys/class/drm/card${cardno}/device/xgmi_hive_info/xgmi_hive_id
190 *
191 * The node information is stored in numbered directories:
192 * /sys/class/drm/card${cardno}/device/xgmi_hive_info/node${nodeno}/xgmi_device_id
193 *
194 * Each device has their own xgmi_hive_info direction with a mirror
195 * set of node sub-directories.
196 *
197 * The XGMI memory space is built by contiguously adding the power of
198 * two padded VRAM space from each node to each other.
199 *
200 */
201
d95e8e97
DL		 202static struct attribute amdgpu_xgmi_hive_id = {
203 .name = "xgmi_hive_id",
204 .mode = S_IRUGO
205};
1c1e53f7 206
d95e8e97
DL		 207static struct attribute *amdgpu_xgmi_hive_attrs[] = {
208 &amdgpu_xgmi_hive_id,
209 NULL
210};
7ff61cdc 211ATTRIBUTE_GROUPS(amdgpu_xgmi_hive);
b1fa8c89 212
d95e8e97
DL		 213static ssize_t amdgpu_xgmi_show_attrs(struct kobject *kobj,
214 struct attribute *attr, char *buf)
b1fa8c89 215{
d95e8e97
DL		 216 struct amdgpu_hive_info *hive = container_of(
217 kobj, struct amdgpu_hive_info, kobj);
b1fa8c89 218
d95e8e97
DL		 219 if (attr == &amdgpu_xgmi_hive_id)
220 return snprintf(buf, PAGE_SIZE, "%llu\n", hive->hive_id);
b1fa8c89 221
d95e8e97 222 return 0;
b1fa8c89
AG		 223}
224
d95e8e97 225static void amdgpu_xgmi_hive_release(struct kobject *kobj)
b1fa8c89 226{
d95e8e97
DL		 227 struct amdgpu_hive_info *hive = container_of(
228 kobj, struct amdgpu_hive_info, kobj);
229
230 mutex_destroy(&hive->hive_lock);
231 kfree(hive);
b1fa8c89
AG		 232}
233
d95e8e97
DL		 234static const struct sysfs_ops amdgpu_xgmi_hive_ops = {
235 .show = amdgpu_xgmi_show_attrs,
236};
237
238struct kobj_type amdgpu_xgmi_hive_type = {
239 .release = amdgpu_xgmi_hive_release,
240 .sysfs_ops = &amdgpu_xgmi_hive_ops,
7ff61cdc 241 .default_groups = amdgpu_xgmi_hive_groups,
d95e8e97
DL		 242};
243
b1fa8c89
AG		 244static ssize_t amdgpu_xgmi_show_device_id(struct device *dev,
245 struct device_attribute *attr,
246 char *buf)
247{
248 struct drm_device *ddev = dev_get_drvdata(dev);
1348969a 249 struct amdgpu_device *adev = drm_to_adev(ddev);
b1fa8c89 250
36000c7a 251 return sysfs_emit(buf, "%llu\n", adev->gmc.xgmi.node_id);
b1fa8c89
AG		 252
253}
254
24f9aacf
JK		 255#define AMDGPU_XGMI_SET_FICAA(o) ((o) | 0x456801)
256static ssize_t amdgpu_xgmi_show_error(struct device *dev,
257 struct device_attribute *attr,
258 char *buf)
259{
260 struct drm_device *ddev = dev_get_drvdata(dev);
1348969a 261 struct amdgpu_device *adev = drm_to_adev(ddev);
24f9aacf
JK		 262 uint32_t ficaa_pie_ctl_in, ficaa_pie_status_in;
263 uint64_t fica_out;
264 unsigned int error_count = 0;
265
266 ficaa_pie_ctl_in = AMDGPU_XGMI_SET_FICAA(0x200);
267 ficaa_pie_status_in = AMDGPU_XGMI_SET_FICAA(0x208);
b1fa8c89 268
cace4bff
HZ		 269 if ((!adev->df.funcs) ||
270 (!adev->df.funcs->get_fica) ||
271 (!adev->df.funcs->set_fica))
272 return -EINVAL;
273
bdf84a80 274 fica_out = adev->df.funcs->get_fica(adev, ficaa_pie_ctl_in);
24f9aacf
JK		 275 if (fica_out != 0x1f)
276 pr_err("xGMI error counters not enabled!\n");
277
bdf84a80 278 fica_out = adev->df.funcs->get_fica(adev, ficaa_pie_status_in);
24f9aacf
JK		 279
280 if ((fica_out & 0xffff) == 2)
281 error_count = ((fica_out >> 62) & 0x1) + (fica_out >> 63);
b1fa8c89 282
bdf84a80 283 adev->df.funcs->set_fica(adev, ficaa_pie_status_in, 0, 0);
24f9aacf 284
36000c7a 285 return sysfs_emit(buf, "%u\n", error_count);
24f9aacf
JK		 286}
287
288
289static DEVICE_ATTR(xgmi_device_id, S_IRUGO, amdgpu_xgmi_show_device_id, NULL);
290static DEVICE_ATTR(xgmi_error, S_IRUGO, amdgpu_xgmi_show_error, NULL);
b1fa8c89
AG		 291
292static int amdgpu_xgmi_sysfs_add_dev_info(struct amdgpu_device *adev,
293 struct amdgpu_hive_info *hive)
294{
295 int ret = 0;
296 char node[10] = { 0 };
297
298 /* Create xgmi device id file */
299 ret = device_create_file(adev->dev, &dev_attr_xgmi_device_id);
300 if (ret) {
301 dev_err(adev->dev, "XGMI: Failed to create device file xgmi_device_id\n");
302 return ret;
303 }
304
24f9aacf
JK		 305 /* Create xgmi error file */
306 ret = device_create_file(adev->dev, &dev_attr_xgmi_error);
307 if (ret)
308 pr_err("failed to create xgmi_error\n");
309
310
b1fa8c89 311 /* Create sysfs link to hive info folder on the first device */
d95e8e97
DL		 312 if (hive->kobj.parent != (&adev->dev->kobj)) {
313 ret = sysfs_create_link(&adev->dev->kobj, &hive->kobj,
b1fa8c89
AG		 314 "xgmi_hive_info");
315 if (ret) {
316 dev_err(adev->dev, "XGMI: Failed to create link to hive info");
317 goto remove_file;
318 }
319 }
320
d95e8e97 321 sprintf(node, "node%d", atomic_read(&hive->number_devices));
b1fa8c89 322 /* Create sysfs link form the hive folder to yourself */
d95e8e97 323 ret = sysfs_create_link(&hive->kobj, &adev->dev->kobj, node);
b1fa8c89
AG		 324 if (ret) {
325 dev_err(adev->dev, "XGMI: Failed to create link from hive info");
326 goto remove_link;
327 }
328
329 goto success;
330
331
332remove_link:
4a580877 333 sysfs_remove_link(&adev->dev->kobj, adev_to_drm(adev)->unique);
b1fa8c89
AG		 334
335remove_file:
336 device_remove_file(adev->dev, &dev_attr_xgmi_device_id);
337
338success:
339 return ret;
340}
341
342static void amdgpu_xgmi_sysfs_rem_dev_info(struct amdgpu_device *adev,
343 struct amdgpu_hive_info *hive)
344{
a89b5dae
JZ		 345 char node[10];
346 memset(node, 0, sizeof(node));
347
b1fa8c89 348 device_remove_file(adev->dev, &dev_attr_xgmi_device_id);
a89b5dae
JZ		 349 device_remove_file(adev->dev, &dev_attr_xgmi_error);
350
d95e8e97 351 if (hive->kobj.parent != (&adev->dev->kobj))
a89b5dae
JZ		 352 sysfs_remove_link(&adev->dev->kobj,"xgmi_hive_info");
353
d95e8e97
DL		 354 sprintf(node, "node%d", atomic_read(&hive->number_devices));
355 sysfs_remove_link(&hive->kobj, node);
a89b5dae 356
b1fa8c89
AG		 357}
358
359
360
d95e8e97 361struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev)
fb30fc59 362{
be8901c2 363 struct amdgpu_hive_info *hive = NULL;
d95e8e97 364 int ret;
fb30fc59
SL		 365
366 if (!adev->gmc.xgmi.hive_id)
367 return NULL;
22d6575b 368
d95e8e97
DL		 369 if (adev->hive) {
370 kobject_get(&adev->hive->kobj);
371 return adev->hive;
372 }
373
22d6575b
TSD		 374 mutex_lock(&xgmi_mutex);
375
be8901c2
KW		 376 list_for_each_entry(hive, &xgmi_hive_list, node) {
377 if (hive->hive_id == adev->gmc.xgmi.hive_id)
378 goto pro_end;
fb30fc59 379 }
d95e8e97
DL		 380
381 hive = kzalloc(sizeof(*hive), GFP_KERNEL);
382 if (!hive) {
383 dev_err(adev->dev, "XGMI: allocation failed\n");
384 hive = NULL;
385 goto pro_end;
22d6575b 386 }
fb30fc59
SL		 387
388 /* initialize new hive if not exist */
d95e8e97
DL		 389 ret = kobject_init_and_add(&hive->kobj,
390 &amdgpu_xgmi_hive_type,
391 &adev->dev->kobj,
392 "%s", "xgmi_hive_info");
393 if (ret) {
394 dev_err(adev->dev, "XGMI: failed initializing kobject for xgmi hive\n");
7b833d68 395 kobject_put(&hive->kobj);
d95e8e97
DL		 396 kfree(hive);
397 hive = NULL;
398 goto pro_end;
b1fa8c89
AG		 399 }
400
d95e8e97
DL		 401 hive->hive_id = adev->gmc.xgmi.hive_id;
402 INIT_LIST_HEAD(&hive->device_list);
403 INIT_LIST_HEAD(&hive->node);
404 mutex_init(&hive->hive_lock);
405 atomic_set(&hive->in_reset, 0);
406 atomic_set(&hive->number_devices, 0);
407 task_barrier_init(&hive->tb);
408 hive->pstate = AMDGPU_XGMI_PSTATE_UNKNOWN;
409 hive->hi_req_gpu = NULL;
d84a430d
JK		 410 /*
411 * hive pstate on boot is high in vega20 so we have to go to low
412 * pstate on after boot.
413 */
d95e8e97
DL		 414 hive->hi_req_count = AMDGPU_MAX_XGMI_DEVICE_PER_HIVE;
415 list_add_tail(&hive->node, &xgmi_hive_list);
416
417pro_end:
418 if (hive)
419 kobject_get(&hive->kobj);
22d6575b 420 mutex_unlock(&xgmi_mutex);
d95e8e97
DL		 421 return hive;
422}
ed2bf522 423
d95e8e97
DL		 424void amdgpu_put_xgmi_hive(struct amdgpu_hive_info *hive)
425{
426 if (hive)
427 kobject_put(&hive->kobj);
fb30fc59
SL		 428}
429
df399b06 430int amdgpu_xgmi_set_pstate(struct amdgpu_device *adev, int pstate)
431{
432 int ret = 0;
a9f5f98f
HZ		 433 struct amdgpu_hive_info *hive;
434 struct amdgpu_device *request_adev;
d84a430d 435 bool is_hi_req = pstate == AMDGPU_XGMI_PSTATE_MAX_VEGA20;
a9f5f98f 436 bool init_low;
df399b06 437
a9f5f98f
HZ		 438 hive = amdgpu_get_xgmi_hive(adev);
439 if (!hive)
440 return 0;
441
442 request_adev = hive->hi_req_gpu ? hive->hi_req_gpu : adev;
443 init_low = hive->pstate == AMDGPU_XGMI_PSTATE_UNKNOWN;
d95e8e97 444 amdgpu_put_xgmi_hive(hive);
d84a430d 445 /* fw bug so temporarily disable pstate switching */
dfe31f25
JK		 446 return 0;
447
448 if (!hive || adev->asic_type != CHIP_VEGA20)
df399b06 449 return 0;
450
f1403342 451 mutex_lock(&hive->hive_lock);
5c5b2ba0 452
d84a430d
JK		 453 if (is_hi_req)
454 hive->hi_req_count++;
455 else
456 hive->hi_req_count--;
457
458 /*
459 * Vega20 only needs single peer to request pstate high for the hive to
460 * go high but all peers must request pstate low for the hive to go low
461 */
462 if (hive->pstate == pstate ||
463 (!is_hi_req && hive->hi_req_count && !init_low))
cb5932f8 464 goto out;
93abb05f 465
d84a430d 466 dev_dbg(request_adev->dev, "Set xgmi pstate %d.\n", pstate);
93abb05f 467
d84a430d 468 ret = amdgpu_dpm_set_xgmi_pstate(request_adev, pstate);
5c5b2ba0 469 if (ret) {
d84a430d 470 dev_err(request_adev->dev,
93abb05f 471 "XGMI: Set pstate failure on device %llx, hive %llx, ret %d",
d84a430d
JK		 472 request_adev->gmc.xgmi.node_id,
473 request_adev->gmc.xgmi.hive_id, ret);
5c5b2ba0
EQ		 474 goto out;
475 }
476
d84a430d
JK		 477 if (init_low)
478 hive->pstate = hive->hi_req_count ?
479 hive->pstate : AMDGPU_XGMI_PSTATE_MIN;
480 else {
5c5b2ba0 481 hive->pstate = pstate;
d84a430d
JK		 482 hive->hi_req_gpu = pstate != AMDGPU_XGMI_PSTATE_MIN ?
483 adev : NULL;
484 }
5c5b2ba0 485out:
f1403342 486 mutex_unlock(&hive->hive_lock);
df399b06 487 return ret;
488}
489
5183411b
AG		 490int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_device *adev)
491{
29c1ec24 492 int ret;
5183411b
AG		 493
494 /* Each psp need to set the latest topology */
495 ret = psp_xgmi_set_topology_info(&adev->psp,
d95e8e97 496 atomic_read(&hive->number_devices),
da361dd1 497 &adev->psp.xgmi_context.top_info);
5183411b
AG		 498 if (ret)
499 dev_err(adev->dev,
500 "XGMI: Set topology failure on device %llx, hive %llx, ret %d",
501 adev->gmc.xgmi.node_id,
502 adev->gmc.xgmi.hive_id, ret);
5183411b
AG		 503
504 return ret;
505}
506
da361dd1 507
4ac5617c
JK		 508/*
509 * NOTE psp_xgmi_node_info.num_hops layout is as follows:
510 * num_hops[7:6] = link type (0 = xGMI2, 1 = xGMI3, 2/3 = reserved)
511 * num_hops[5:3] = reserved
512 * num_hops[2:0] = number of hops
513 */
da361dd1 514int amdgpu_xgmi_get_hops_count(struct amdgpu_device *adev,
515 struct amdgpu_device *peer_adev)
516{
517 struct psp_xgmi_topology_info *top = &adev->psp.xgmi_context.top_info;
4ac5617c 518 uint8_t num_hops_mask = 0x7;
da361dd1 519 int i;
520
521 for (i = 0 ; i < top->num_nodes; ++i)
522 if (top->nodes[i].node_id == peer_adev->gmc.xgmi.node_id)
4ac5617c 523 return top->nodes[i].num_hops & num_hops_mask;
da361dd1 524 return -EINVAL;
525}
526
3f46c4e9
JK		 527int amdgpu_xgmi_get_num_links(struct amdgpu_device *adev,
528 struct amdgpu_device *peer_adev)
529{
530 struct psp_xgmi_topology_info *top = &adev->psp.xgmi_context.top_info;
531 int i;
532
533 for (i = 0 ; i < top->num_nodes; ++i)
534 if (top->nodes[i].node_id == peer_adev->gmc.xgmi.node_id)
535 return top->nodes[i].num_links;
536 return -EINVAL;
537}
538
44357a1b
JK		 539/*
540 * Devices that support extended data require the entire hive to initialize with
541 * the shared memory buffer flag set.
542 *
543 * Hive locks and conditions apply - see amdgpu_xgmi_add_device
544 */
545static int amdgpu_xgmi_initialize_hive_get_data_partition(struct amdgpu_hive_info *hive,
546 bool set_extended_data)
547{
548 struct amdgpu_device *tmp_adev;
549 int ret;
550
551 list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
552 ret = psp_xgmi_initialize(&tmp_adev->psp, set_extended_data, false);
553 if (ret) {
554 dev_err(tmp_adev->dev,
555 "XGMI: Failed to initialize xgmi session for data partition %i\n",
556 set_extended_data);
557 return ret;
558 }
559
560 }
561
562 return 0;
563}
564
fb30fc59
SL		 565int amdgpu_xgmi_add_device(struct amdgpu_device *adev)
566{
da361dd1 567 struct psp_xgmi_topology_info *top_info;
fb30fc59
SL		 568 struct amdgpu_hive_info *hive;
569 struct amdgpu_xgmi *entry;
5183411b 570 struct amdgpu_device *tmp_adev = NULL;
fb30fc59 571
75b2fce2 572 int count = 0, ret = 0;
fb30fc59 573
47622ba0 574 if (!adev->gmc.xgmi.supported)
fb30fc59 575 return 0;
47622ba0 576
e3c1b071 577 if (!adev->gmc.xgmi.pending_reset &&
578 amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_PSP)) {
44357a1b 579 ret = psp_xgmi_initialize(&adev->psp, false, true);
0b9d3760
HZ		 580 if (ret) {
581 dev_err(adev->dev,
582 "XGMI: Failed to initialize xgmi session\n");
583 return ret;
584 }
585
2f2eab3a
OZ		 586 ret = psp_xgmi_get_hive_id(&adev->psp, &adev->gmc.xgmi.hive_id);
587 if (ret) {
588 dev_err(adev->dev,
589 "XGMI: Failed to get hive id\n");
590 return ret;
591 }
379c237e 592
2f2eab3a
OZ		 593 ret = psp_xgmi_get_node_id(&adev->psp, &adev->gmc.xgmi.node_id);
594 if (ret) {
595 dev_err(adev->dev,
596 "XGMI: Failed to get node id\n");
597 return ret;
598 }
599 } else {
600 adev->gmc.xgmi.hive_id = 16;
601 adev->gmc.xgmi.node_id = adev->gmc.xgmi.physical_node_id + 16;
379c237e 602 }
fb30fc59 603
d95e8e97 604 hive = amdgpu_get_xgmi_hive(adev);
36ca09a0 605 if (!hive) {
606 ret = -EINVAL;
607 dev_err(adev->dev,
c1219b94 608 "XGMI: node 0x%llx, can not match hive 0x%llx in the hive list.\n",
36ca09a0 609 adev->gmc.xgmi.node_id, adev->gmc.xgmi.hive_id);
fb30fc59 610 goto exit;
36ca09a0 611 }
d95e8e97 612 mutex_lock(&hive->hive_lock);
fb30fc59 613
da361dd1 614 top_info = &adev->psp.xgmi_context.top_info;
5183411b 615
fb30fc59
SL		 616 list_add_tail(&adev->gmc.xgmi.head, &hive->device_list);
617 list_for_each_entry(entry, &hive->device_list, head)
da361dd1 618 top_info->nodes[count++].node_id = entry->node_id;
e008299e 619 top_info->num_nodes = count;
d95e8e97 620 atomic_set(&hive->number_devices, count);
fb30fc59 621
f33a8770
AG		 622 task_barrier_add_task(&hive->tb);
623
e3c1b071 624 if (!adev->gmc.xgmi.pending_reset &&
625 amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_PSP)) {
75b2fce2
LM		 626 list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
627 /* update node list for other device in the hive */
628 if (tmp_adev != adev) {
629 top_info = &tmp_adev->psp.xgmi_context.top_info;
630 top_info->nodes[count - 1].node_id =
631 adev->gmc.xgmi.node_id;
632 top_info->num_nodes = count;
633 }
634 ret = amdgpu_xgmi_update_topology(hive, tmp_adev);
635 if (ret)
94561899 636 goto exit_unlock;
e008299e 637 }
e008299e 638
75b2fce2
LM		 639 /* get latest topology info for each device from psp */
640 list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
641 ret = psp_xgmi_get_topology_info(&tmp_adev->psp, count,
44357a1b 642 &tmp_adev->psp.xgmi_context.top_info, false);
75b2fce2
LM		 643 if (ret) {
644 dev_err(tmp_adev->dev,
645 "XGMI: Get topology failure on device %llx, hive %llx, ret %d",
646 tmp_adev->gmc.xgmi.node_id,
647 tmp_adev->gmc.xgmi.hive_id, ret);
648 /* To do : continue with some node failed or disable the whole hive */
94561899 649 goto exit_unlock;
75b2fce2 650 }
a82c1566 651 }
44357a1b
JK		 652
653 /* get topology again for hives that support extended data */
654 if (adev->psp.xgmi_context.supports_extended_data) {
655
656 /* initialize the hive to get extended data. */
657 ret = amdgpu_xgmi_initialize_hive_get_data_partition(hive, true);
658 if (ret)
659 goto exit_unlock;
660
661 /* get the extended data. */
662 list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
663 ret = psp_xgmi_get_topology_info(&tmp_adev->psp, count,
664 &tmp_adev->psp.xgmi_context.top_info, true);
665 if (ret) {
666 dev_err(tmp_adev->dev,
667 "XGMI: Get topology for extended data failure on device %llx, hive %llx, ret %d",
668 tmp_adev->gmc.xgmi.node_id,
669 tmp_adev->gmc.xgmi.hive_id, ret);
670 goto exit_unlock;
671 }
672 }
673
674 /* initialize the hive to get non-extended data for the next round. */
675 ret = amdgpu_xgmi_initialize_hive_get_data_partition(hive, false);
676 if (ret)
677 goto exit_unlock;
678
679 }
fb30fc59 680 }
a82c1566 681
e3c1b071 682 if (!ret && !adev->gmc.xgmi.pending_reset)
b1fa8c89
AG		 683 ret = amdgpu_xgmi_sysfs_add_dev_info(adev, hive);
684
94561899 685exit_unlock:
e008299e 686 mutex_unlock(&hive->hive_lock);
687exit:
d95e8e97
DL		 688 if (!ret) {
689 adev->hive = hive;
b1fa8c89
AG		 690 dev_info(adev->dev, "XGMI: Add node %d, hive 0x%llx.\n",
691 adev->gmc.xgmi.physical_node_id, adev->gmc.xgmi.hive_id);
d95e8e97
DL		 692 } else {
693 amdgpu_put_xgmi_hive(hive);
b1fa8c89
AG		 694 dev_err(adev->dev, "XGMI: Failed to add node %d, hive 0x%llx ret: %d\n",
695 adev->gmc.xgmi.physical_node_id, adev->gmc.xgmi.hive_id,
696 ret);
d95e8e97 697 }
b1fa8c89 698
fb30fc59
SL		 699 return ret;
700}
a82400b5 701
0b9d3760 702int amdgpu_xgmi_remove_device(struct amdgpu_device *adev)
a82400b5 703{
d95e8e97 704 struct amdgpu_hive_info *hive = adev->hive;
a82400b5
AG		 705
706 if (!adev->gmc.xgmi.supported)
0b9d3760 707 return -EINVAL;
a82400b5 708
a82400b5 709 if (!hive)
0b9d3760 710 return -EINVAL;
a82400b5 711
d95e8e97 712 mutex_lock(&hive->hive_lock);
a89b5dae
JZ		 713 task_barrier_rem_task(&hive->tb);
714 amdgpu_xgmi_sysfs_rem_dev_info(adev, hive);
d95e8e97
DL		 715 if (hive->hi_req_gpu == adev)
716 hive->hi_req_gpu = NULL;
717 list_del(&adev->gmc.xgmi.head);
a89b5dae
JZ		 718 mutex_unlock(&hive->hive_lock);
719
d95e8e97
DL		 720 amdgpu_put_xgmi_hive(hive);
721 adev->hive = NULL;
722
723 if (atomic_dec_return(&hive->number_devices) == 0) {
724 /* Remove the hive from global hive list */
725 mutex_lock(&xgmi_mutex);
726 list_del(&hive->node);
727 mutex_unlock(&xgmi_mutex);
728
729 amdgpu_put_xgmi_hive(hive);
22d6575b 730 }
0b9d3760
HZ		 731
732 return psp_xgmi_terminate(&adev->psp);
a82400b5 733}
029fbd43 734
6c245386 735static int amdgpu_xgmi_ras_late_init(struct amdgpu_device *adev, void *ras_info)
029fbd43
HZ		 736{
737 int r;
738 struct ras_ih_if ih_info = {
739 .cb = NULL,
740 };
741 struct ras_fs_if fs_info = {
742 .sysfs_name = "xgmi_wafl_err_count",
029fbd43
HZ		 743 };
744
745 if (!adev->gmc.xgmi.supported ||
746 adev->gmc.xgmi.num_physical_nodes == 0)
747 return 0;
748
6c245386 749 adev->gmc.xgmi.ras->ras_block.hw_ops->reset_ras_error_count(adev);
66399248 750
029fbd43
HZ		 751 if (!adev->gmc.xgmi.ras_if) {
752 adev->gmc.xgmi.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
753 if (!adev->gmc.xgmi.ras_if)
754 return -ENOMEM;
755 adev->gmc.xgmi.ras_if->block = AMDGPU_RAS_BLOCK__XGMI_WAFL;
756 adev->gmc.xgmi.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
757 adev->gmc.xgmi.ras_if->sub_block_index = 0;
029fbd43
HZ		 758 }
759 ih_info.head = fs_info.head = *adev->gmc.xgmi.ras_if;
760 r = amdgpu_ras_late_init(adev, adev->gmc.xgmi.ras_if,
761 &fs_info, &ih_info);
762 if (r || !amdgpu_ras_is_supported(adev, adev->gmc.xgmi.ras_if->block)) {
763 kfree(adev->gmc.xgmi.ras_if);
764 adev->gmc.xgmi.ras_if = NULL;
765 }
766
767 return r;
768}
be5b39d8 769
52137ca8 770static void amdgpu_xgmi_ras_fini(struct amdgpu_device *adev)
be5b39d8
TZ		 771{
772 if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__XGMI_WAFL) &&
773 adev->gmc.xgmi.ras_if) {
774 struct ras_common_if *ras_if = adev->gmc.xgmi.ras_if;
775 struct ras_ih_if ih_info = {
776 .cb = NULL,
777 };
778
779 amdgpu_ras_late_fini(adev, ras_if, &ih_info);
780 kfree(ras_if);
781 }
782}
19744f5f
HZ		 783
784uint64_t amdgpu_xgmi_get_relative_phy_addr(struct amdgpu_device *adev,
785 uint64_t addr)
786{
890900fe
HZ		 787 struct amdgpu_xgmi *xgmi = &adev->gmc.xgmi;
788 return (addr + xgmi->physical_node_id * xgmi->node_segment_size);
19744f5f 789}
18f36157 790
66399248
JC		 791static void pcs_clear_status(struct amdgpu_device *adev, uint32_t pcs_status_reg)
792{
793 WREG32_PCIE(pcs_status_reg, 0xFFFFFFFF);
794 WREG32_PCIE(pcs_status_reg, 0);
795}
796
52137ca8 797static void amdgpu_xgmi_reset_ras_error_count(struct amdgpu_device *adev)
66399248
JC		 798{
799 uint32_t i;
800
801 switch (adev->asic_type) {
802 case CHIP_ARCTURUS:
803 for (i = 0; i < ARRAY_SIZE(xgmi_pcs_err_status_reg_arct); i++)
804 pcs_clear_status(adev,
805 xgmi_pcs_err_status_reg_arct[i]);
806 break;
807 case CHIP_VEGA20:
808 for (i = 0; i < ARRAY_SIZE(xgmi_pcs_err_status_reg_vg20); i++)
809 pcs_clear_status(adev,
810 xgmi_pcs_err_status_reg_vg20[i]);
811 break;
3c4ff2dc
JC		 812 case CHIP_ALDEBARAN:
813 for (i = 0; i < ARRAY_SIZE(xgmi23_pcs_err_status_reg_aldebaran); i++)
814 pcs_clear_status(adev,
815 xgmi23_pcs_err_status_reg_aldebaran[i]);
7513c9ff 816 for (i = 0; i < ARRAY_SIZE(xgmi3x16_pcs_err_status_reg_aldebaran); i++)
3c4ff2dc 817 pcs_clear_status(adev,
7513c9ff 818 xgmi3x16_pcs_err_status_reg_aldebaran[i]);
3c4ff2dc
JC		 819 for (i = 0; i < ARRAY_SIZE(walf_pcs_err_status_reg_aldebaran); i++)
820 pcs_clear_status(adev,
821 walf_pcs_err_status_reg_aldebaran[i]);
822 break;
66399248
JC		 823 default:
824 break;
825 }
826}
827
18f36157
HZ		 828static int amdgpu_xgmi_query_pcs_error_status(struct amdgpu_device *adev,
829 uint32_t value,
830 uint32_t *ue_count,
831 uint32_t *ce_count,
832 bool is_xgmi_pcs)
833{
834 int i;
835 int ue_cnt;
836
837 if (is_xgmi_pcs) {
838 /* query xgmi pcs error status,
839 * only ue is supported */
840 for (i = 0; i < ARRAY_SIZE(xgmi_pcs_ras_fields); i ++) {
841 ue_cnt = (value &
842 xgmi_pcs_ras_fields[i].pcs_err_mask) >>
843 xgmi_pcs_ras_fields[i].pcs_err_shift;
844 if (ue_cnt) {
845 dev_info(adev->dev, "%s detected\n",
846 xgmi_pcs_ras_fields[i].err_name);
847 *ue_count += ue_cnt;
848 }
849 }
850 } else {
851 /* query wafl pcs error status,
852 * only ue is supported */
853 for (i = 0; i < ARRAY_SIZE(wafl_pcs_ras_fields); i++) {
854 ue_cnt = (value &
855 wafl_pcs_ras_fields[i].pcs_err_mask) >>
856 wafl_pcs_ras_fields[i].pcs_err_shift;
857 if (ue_cnt) {
858 dev_info(adev->dev, "%s detected\n",
859 wafl_pcs_ras_fields[i].err_name);
860 *ue_count += ue_cnt;
861 }
862 }
863 }
864
865 return 0;
866}
867
6c245386 868static void amdgpu_xgmi_query_ras_error_count(struct amdgpu_device *adev,
52137ca8 869 void *ras_error_status)
18f36157
HZ		 870{
871 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
872 int i;
873 uint32_t data;
874 uint32_t ue_cnt = 0, ce_cnt = 0;
875
876 if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__XGMI_WAFL))
6c245386 877 return ;
18f36157
HZ		 878
879 err_data->ue_count = 0;
880 err_data->ce_count = 0;
881
882 switch (adev->asic_type) {
a61f41b1
HZ		 883 case CHIP_ARCTURUS:
884 /* check xgmi pcs error */
885 for (i = 0; i < ARRAY_SIZE(xgmi_pcs_err_status_reg_arct); i++) {
886 data = RREG32_PCIE(xgmi_pcs_err_status_reg_arct[i]);
887 if (data)
888 amdgpu_xgmi_query_pcs_error_status(adev,
889 data, &ue_cnt, &ce_cnt, true);
890 }
891 /* check wafl pcs error */
892 for (i = 0; i < ARRAY_SIZE(wafl_pcs_err_status_reg_arct); i++) {
893 data = RREG32_PCIE(wafl_pcs_err_status_reg_arct[i]);
894 if (data)
895 amdgpu_xgmi_query_pcs_error_status(adev,
896 data, &ue_cnt, &ce_cnt, false);
897 }
898 break;
18f36157 899 case CHIP_VEGA20:
18f36157
HZ		 900 /* check xgmi pcs error */
901 for (i = 0; i < ARRAY_SIZE(xgmi_pcs_err_status_reg_vg20); i++) {
902 data = RREG32_PCIE(xgmi_pcs_err_status_reg_vg20[i]);
903 if (data)
904 amdgpu_xgmi_query_pcs_error_status(adev,
905 data, &ue_cnt, &ce_cnt, true);
906 }
907 /* check wafl pcs error */
908 for (i = 0; i < ARRAY_SIZE(wafl_pcs_err_status_reg_vg20); i++) {
909 data = RREG32_PCIE(wafl_pcs_err_status_reg_vg20[i]);
910 if (data)
911 amdgpu_xgmi_query_pcs_error_status(adev,
912 data, &ue_cnt, &ce_cnt, false);
913 }
914 break;
3c4ff2dc
JC		 915 case CHIP_ALDEBARAN:
916 /* check xgmi23 pcs error */
917 for (i = 0; i < ARRAY_SIZE(xgmi23_pcs_err_status_reg_aldebaran); i++) {
918 data = RREG32_PCIE(xgmi23_pcs_err_status_reg_aldebaran[i]);
919 if (data)
920 amdgpu_xgmi_query_pcs_error_status(adev,
921 data, &ue_cnt, &ce_cnt, true);
922 }
923 /* check xgmi3x16 pcs error */
924 for (i = 0; i < ARRAY_SIZE(xgmi3x16_pcs_err_status_reg_aldebaran); i++) {
925 data = RREG32_PCIE(xgmi3x16_pcs_err_status_reg_aldebaran[i]);
926 if (data)
927 amdgpu_xgmi_query_pcs_error_status(adev,
928 data, &ue_cnt, &ce_cnt, true);
929 }
930 /* check wafl pcs error */
931 for (i = 0; i < ARRAY_SIZE(walf_pcs_err_status_reg_aldebaran); i++) {
932 data = RREG32_PCIE(walf_pcs_err_status_reg_aldebaran[i]);
933 if (data)
934 amdgpu_xgmi_query_pcs_error_status(adev,
935 data, &ue_cnt, &ce_cnt, false);
936 }
937 break;
f24d991b
JC		 938 default:
939 dev_warn(adev->dev, "XGMI RAS error query not supported");
940 break;
18f36157
HZ		 941 }
942
6c245386 943 adev->gmc.xgmi.ras->ras_block.hw_ops->reset_ras_error_count(adev);
66399248 944
18f36157
HZ		 945 err_data->ue_count += ue_cnt;
946 err_data->ce_count += ce_cnt;
18f36157 947}
52137ca8 948
22d4ba53 949/* Trigger XGMI/WAFL error */
950static int amdgpu_ras_error_inject_xgmi(struct amdgpu_device *adev, void *inject_if)
951{
952 int ret = 0;
71b6c4a2 953 struct ta_ras_trigger_error_input *block_info =
954 (struct ta_ras_trigger_error_input *)inject_if;
22d4ba53 955
956 if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
957 dev_warn(adev->dev, "Failed to disallow df cstate");
958
959 if (amdgpu_dpm_allow_xgmi_power_down(adev, false))
960 dev_warn(adev->dev, "Failed to disallow XGMI power down");
961
962 ret = psp_ras_trigger_error(&adev->psp, block_info);
963
964 if (amdgpu_ras_intr_triggered())
965 return ret;
966
967 if (amdgpu_dpm_allow_xgmi_power_down(adev, true))
968 dev_warn(adev->dev, "Failed to allow XGMI power down");
969
970 if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW))
971 dev_warn(adev->dev, "Failed to allow df cstate");
972
973 return ret;
974}
975
6c245386 976struct amdgpu_ras_block_hw_ops xgmi_ras_hw_ops = {
52137ca8
HZ		 977 .query_ras_error_count = amdgpu_xgmi_query_ras_error_count,
978 .reset_ras_error_count = amdgpu_xgmi_reset_ras_error_count,
22d4ba53 979 .ras_error_inject = amdgpu_ras_error_inject_xgmi,
52137ca8 980};
6c245386 981
982struct amdgpu_xgmi_ras xgmi_ras = {
983 .ras_block = {
984 .name = "xgmi",
985 .block = AMDGPU_RAS_BLOCK__XGMI_WAFL,
986 .hw_ops = &xgmi_ras_hw_ops,
987 .ras_late_init = amdgpu_xgmi_ras_late_init,
988 .ras_fini = amdgpu_xgmi_ras_fini,
989 },
990};
Linux 6.x block layer and io_uring tree(s)