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1/*
2 * Copyright 2019 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#include "umc_v6_1.h"
24#include "amdgpu_ras.h"
25#include "amdgpu.h"
26
27#include "rsmu/rsmu_0_0_2_offset.h"
28#include "rsmu/rsmu_0_0_2_sh_mask.h"
29#include "umc/umc_6_1_1_offset.h"
30#include "umc/umc_6_1_1_sh_mask.h"
31#include "umc/umc_6_1_2_offset.h"
32
33#define UMC_6_INST_DIST 0x40000
34
35/*
36 * (addr / 256) * 8192, the higher 26 bits in ErrorAddr
37 * is the index of 8KB block
38 */
39#define ADDR_OF_8KB_BLOCK(addr) (((addr) & ~0xffULL) << 5)
40/* channel index is the index of 256B block */
41#define ADDR_OF_256B_BLOCK(channel_index) ((channel_index) << 8)
42/* offset in 256B block */
43#define OFFSET_IN_256B_BLOCK(addr) ((addr) & 0xffULL)
44
45#define LOOP_UMC_INST(umc_inst) for ((umc_inst) = 0; (umc_inst) < adev->umc.umc_inst_num; (umc_inst)++)
46#define LOOP_UMC_CH_INST(ch_inst) for ((ch_inst) = 0; (ch_inst) < adev->umc.channel_inst_num; (ch_inst)++)
47#define LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) LOOP_UMC_INST((umc_inst)) LOOP_UMC_CH_INST((ch_inst))
48
49const uint32_t
50 umc_v6_1_channel_idx_tbl[UMC_V6_1_UMC_INSTANCE_NUM][UMC_V6_1_CHANNEL_INSTANCE_NUM] = {
51 {2, 18, 11, 27}, {4, 20, 13, 29},
52 {1, 17, 8, 24}, {7, 23, 14, 30},
53 {10, 26, 3, 19}, {12, 28, 5, 21},
54 {9, 25, 0, 16}, {15, 31, 6, 22}
55};
56
57static void umc_v6_1_enable_umc_index_mode(struct amdgpu_device *adev)
58{
59 uint32_t rsmu_umc_addr, rsmu_umc_val;
60
61 rsmu_umc_addr = SOC15_REG_OFFSET(RSMU, 0,
62 mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU);
63 rsmu_umc_val = RREG32_PCIE(rsmu_umc_addr * 4);
64
65 rsmu_umc_val = REG_SET_FIELD(rsmu_umc_val,
66 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
67 RSMU_UMC_INDEX_MODE_EN, 1);
68
69 WREG32_PCIE(rsmu_umc_addr * 4, rsmu_umc_val);
70}
71
72static void umc_v6_1_disable_umc_index_mode(struct amdgpu_device *adev)
73{
74 uint32_t rsmu_umc_addr, rsmu_umc_val;
75
76 rsmu_umc_addr = SOC15_REG_OFFSET(RSMU, 0,
77 mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU);
78 rsmu_umc_val = RREG32_PCIE(rsmu_umc_addr * 4);
79
80 rsmu_umc_val = REG_SET_FIELD(rsmu_umc_val,
81 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
82 RSMU_UMC_INDEX_MODE_EN, 0);
83
84 WREG32_PCIE(rsmu_umc_addr * 4, rsmu_umc_val);
85}
86
87static uint32_t umc_v6_1_get_umc_index_mode_state(struct amdgpu_device *adev)
88{
89 uint32_t rsmu_umc_addr, rsmu_umc_val;
90
91 rsmu_umc_addr = SOC15_REG_OFFSET(RSMU, 0,
92 mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU);
93 rsmu_umc_val = RREG32_PCIE(rsmu_umc_addr * 4);
94
95 return REG_GET_FIELD(rsmu_umc_val,
96 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
97 RSMU_UMC_INDEX_MODE_EN);
98}
99
100static inline uint32_t get_umc_6_reg_offset(struct amdgpu_device *adev,
101 uint32_t umc_inst,
102 uint32_t ch_inst)
103{
104 return adev->umc.channel_offs*ch_inst + UMC_6_INST_DIST*umc_inst;
105}
106
107static void umc_v6_1_clear_error_count_per_channel(struct amdgpu_device *adev,
108 uint32_t umc_reg_offset)
109{
110 uint32_t ecc_err_cnt_addr;
111 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
112
113 if (adev->asic_type == CHIP_ARCTURUS) {
114 /* UMC 6_1_2 registers */
115 ecc_err_cnt_sel_addr =
116 SOC15_REG_OFFSET(UMC, 0,
117 mmUMCCH0_0_EccErrCntSel_ARCT);
118 ecc_err_cnt_addr =
119 SOC15_REG_OFFSET(UMC, 0,
120 mmUMCCH0_0_EccErrCnt_ARCT);
121 } else {
122 /* UMC 6_1_1 registers */
123 ecc_err_cnt_sel_addr =
124 SOC15_REG_OFFSET(UMC, 0,
125 mmUMCCH0_0_EccErrCntSel);
126 ecc_err_cnt_addr =
127 SOC15_REG_OFFSET(UMC, 0,
128 mmUMCCH0_0_EccErrCnt);
129 }
130
131 /* select the lower chip */
132 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr +
133 umc_reg_offset) * 4);
134 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel,
135 UMCCH0_0_EccErrCntSel,
136 EccErrCntCsSel, 0);
137 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4,
138 ecc_err_cnt_sel);
139
140 /* clear lower chip error count */
141 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4,
142 UMC_V6_1_CE_CNT_INIT);
143
144 /* select the higher chip */
145 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr +
146 umc_reg_offset) * 4);
147 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel,
148 UMCCH0_0_EccErrCntSel,
149 EccErrCntCsSel, 1);
150 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4,
151 ecc_err_cnt_sel);
152
153 /* clear higher chip error count */
154 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4,
155 UMC_V6_1_CE_CNT_INIT);
156}
157
158static void umc_v6_1_clear_error_count(struct amdgpu_device *adev)
159{
160 uint32_t umc_inst = 0;
161 uint32_t ch_inst = 0;
162 uint32_t umc_reg_offset = 0;
163 uint32_t rsmu_umc_index_state =
164 umc_v6_1_get_umc_index_mode_state(adev);
165
166 if (rsmu_umc_index_state)
167 umc_v6_1_disable_umc_index_mode(adev);
168
169 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
170 umc_reg_offset = get_umc_6_reg_offset(adev,
171 umc_inst,
172 ch_inst);
173
174 umc_v6_1_clear_error_count_per_channel(adev,
175 umc_reg_offset);
176 }
177
178 if (rsmu_umc_index_state)
179 umc_v6_1_enable_umc_index_mode(adev);
180}
181
182static void umc_v6_1_query_correctable_error_count(struct amdgpu_device *adev,
183 uint32_t umc_reg_offset,
184 unsigned long *error_count)
185{
186 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
187 uint32_t ecc_err_cnt, ecc_err_cnt_addr;
188 uint64_t mc_umc_status;
189 uint32_t mc_umc_status_addr;
190
191 if (adev->asic_type == CHIP_ARCTURUS) {
192 /* UMC 6_1_2 registers */
193 ecc_err_cnt_sel_addr =
194 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel_ARCT);
195 ecc_err_cnt_addr =
196 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt_ARCT);
197 mc_umc_status_addr =
198 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0_ARCT);
199 } else {
200 /* UMC 6_1_1 registers */
201 ecc_err_cnt_sel_addr =
202 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel);
203 ecc_err_cnt_addr =
204 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt);
205 mc_umc_status_addr =
206 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
207 }
208
209 /* select the lower chip and check the error count */
210 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4);
211 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
212 EccErrCntCsSel, 0);
213 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
214
215 ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4);
216 *error_count +=
217 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
218 UMC_V6_1_CE_CNT_INIT);
219
220 /* select the higher chip and check the err counter */
221 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
222 EccErrCntCsSel, 1);
223 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
224
225 ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4);
226 *error_count +=
227 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
228 UMC_V6_1_CE_CNT_INIT);
229
230 /* check for SRAM correctable error
231 MCUMC_STATUS is a 64 bit register */
232 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
233 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 &&
234 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
235 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)
236 *error_count += 1;
237}
238
239static void umc_v6_1_querry_uncorrectable_error_count(struct amdgpu_device *adev,
240 uint32_t umc_reg_offset,
241 unsigned long *error_count)
242{
243 uint64_t mc_umc_status;
244 uint32_t mc_umc_status_addr;
245
246 if (adev->asic_type == CHIP_ARCTURUS) {
247 /* UMC 6_1_2 registers */
248 mc_umc_status_addr =
249 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0_ARCT);
250 } else {
251 /* UMC 6_1_1 registers */
252 mc_umc_status_addr =
253 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
254 }
255
256 /* check the MCUMC_STATUS */
257 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
258 if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
259 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 ||
260 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
261 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 ||
262 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 ||
263 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1))
264 *error_count += 1;
265}
266
267static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev,
268 void *ras_error_status)
269{
270 struct ras_err_data* err_data = (struct ras_err_data*)ras_error_status;
271
272 uint32_t umc_inst = 0;
273 uint32_t ch_inst = 0;
274 uint32_t umc_reg_offset = 0;
275
276 uint32_t rsmu_umc_index_state = umc_v6_1_get_umc_index_mode_state(adev);
277
278 if (rsmu_umc_index_state)
279 umc_v6_1_disable_umc_index_mode(adev);
280
281 if ((adev->asic_type == CHIP_ARCTURUS) &&
282 amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
283 DRM_WARN("Fail to disable DF-Cstate.\n");
284
285 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
286 umc_reg_offset = get_umc_6_reg_offset(adev,
287 umc_inst,
288 ch_inst);
289
290 umc_v6_1_query_correctable_error_count(adev,
291 umc_reg_offset,
292 &(err_data->ce_count));
293 umc_v6_1_querry_uncorrectable_error_count(adev,
294 umc_reg_offset,
295 &(err_data->ue_count));
296 }
297
298 if ((adev->asic_type == CHIP_ARCTURUS) &&
299 amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW))
300 DRM_WARN("Fail to enable DF-Cstate\n");
301
302 if (rsmu_umc_index_state)
303 umc_v6_1_enable_umc_index_mode(adev);
304
305 umc_v6_1_clear_error_count(adev);
306}
307
308static void umc_v6_1_query_error_address(struct amdgpu_device *adev,
309 struct ras_err_data *err_data,
310 uint32_t umc_reg_offset,
311 uint32_t ch_inst,
312 uint32_t umc_inst)
313{
314 uint32_t lsb, mc_umc_status_addr;
315 uint64_t mc_umc_status, err_addr, retired_page, mc_umc_addrt0;
316 struct eeprom_table_record *err_rec;
317 uint32_t channel_index = adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst];
318
319 if (adev->asic_type == CHIP_ARCTURUS) {
320 /* UMC 6_1_2 registers */
321 mc_umc_status_addr =
322 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0_ARCT);
323 mc_umc_addrt0 =
324 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_ADDRT0_ARCT);
325 } else {
326 /* UMC 6_1_1 registers */
327 mc_umc_status_addr =
328 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
329 mc_umc_addrt0 =
330 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_ADDRT0);
331 }
332
333 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
334
335 if (mc_umc_status == 0)
336 return;
337
338 if (!err_data->err_addr) {
339 /* clear umc status */
340 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
341 return;
342 }
343
344 err_rec = &err_data->err_addr[err_data->err_addr_cnt];
345
346 /* calculate error address if ue/ce error is detected */
347 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
348 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
349 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) {
350
351 err_addr = RREG64_PCIE((mc_umc_addrt0 + umc_reg_offset) * 4);
352 /* the lowest lsb bits should be ignored */
353 lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB);
354 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
355 err_addr &= ~((0x1ULL << lsb) - 1);
356
357 /* translate umc channel address to soc pa, 3 parts are included */
358 retired_page = ADDR_OF_8KB_BLOCK(err_addr) |
359 ADDR_OF_256B_BLOCK(channel_index) |
360 OFFSET_IN_256B_BLOCK(err_addr);
361
362 /* we only save ue error information currently, ce is skipped */
363 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC)
364 == 1) {
365 err_rec->address = err_addr;
366 /* page frame address is saved */
367 err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT;
368 err_rec->ts = (uint64_t)ktime_get_real_seconds();
369 err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE;
370 err_rec->cu = 0;
371 err_rec->mem_channel = channel_index;
372 err_rec->mcumc_id = umc_inst;
373
374 err_data->err_addr_cnt++;
375 }
376 }
377
378 /* clear umc status */
379 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
380}
381
382static void umc_v6_1_query_ras_error_address(struct amdgpu_device *adev,
383 void *ras_error_status)
384{
385 struct ras_err_data* err_data = (struct ras_err_data*)ras_error_status;
386
387 uint32_t umc_inst = 0;
388 uint32_t ch_inst = 0;
389 uint32_t umc_reg_offset = 0;
390
391 uint32_t rsmu_umc_index_state = umc_v6_1_get_umc_index_mode_state(adev);
392
393 if (rsmu_umc_index_state)
394 umc_v6_1_disable_umc_index_mode(adev);
395
396 if ((adev->asic_type == CHIP_ARCTURUS) &&
397 amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
398 DRM_WARN("Fail to disable DF-Cstate.\n");
399
400 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
401 umc_reg_offset = get_umc_6_reg_offset(adev,
402 umc_inst,
403 ch_inst);
404
405 umc_v6_1_query_error_address(adev,
406 err_data,
407 umc_reg_offset,
408 ch_inst,
409 umc_inst);
410 }
411
412 if ((adev->asic_type == CHIP_ARCTURUS) &&
413 amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW))
414 DRM_WARN("Fail to enable DF-Cstate\n");
415
416 if (rsmu_umc_index_state)
417 umc_v6_1_enable_umc_index_mode(adev);
418}
419
420static void umc_v6_1_err_cnt_init_per_channel(struct amdgpu_device *adev,
421 uint32_t umc_reg_offset)
422{
423 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
424 uint32_t ecc_err_cnt_addr;
425
426 if (adev->asic_type == CHIP_ARCTURUS) {
427 /* UMC 6_1_2 registers */
428 ecc_err_cnt_sel_addr =
429 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel_ARCT);
430 ecc_err_cnt_addr =
431 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt_ARCT);
432 } else {
433 /* UMC 6_1_1 registers */
434 ecc_err_cnt_sel_addr =
435 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel);
436 ecc_err_cnt_addr =
437 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt);
438 }
439
440 /* select the lower chip and check the error count */
441 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4);
442 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
443 EccErrCntCsSel, 0);
444 /* set ce error interrupt type to APIC based interrupt */
445 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
446 EccErrInt, 0x1);
447 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
448 /* set error count to initial value */
449 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V6_1_CE_CNT_INIT);
450
451 /* select the higher chip and check the err counter */
452 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
453 EccErrCntCsSel, 1);
454 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
455 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V6_1_CE_CNT_INIT);
456}
457
458static void umc_v6_1_err_cnt_init(struct amdgpu_device *adev)
459{
460 uint32_t umc_inst = 0;
461 uint32_t ch_inst = 0;
462 uint32_t umc_reg_offset = 0;
463
464 uint32_t rsmu_umc_index_state = umc_v6_1_get_umc_index_mode_state(adev);
465
466 if (rsmu_umc_index_state)
467 umc_v6_1_disable_umc_index_mode(adev);
468
469 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
470 umc_reg_offset = get_umc_6_reg_offset(adev,
471 umc_inst,
472 ch_inst);
473
474 umc_v6_1_err_cnt_init_per_channel(adev, umc_reg_offset);
475 }
476
477 if (rsmu_umc_index_state)
478 umc_v6_1_enable_umc_index_mode(adev);
479}
480
481const struct amdgpu_umc_funcs umc_v6_1_funcs = {
482 .err_cnt_init = umc_v6_1_err_cnt_init,
483 .ras_late_init = amdgpu_umc_ras_late_init,
484 .query_ras_error_count = umc_v6_1_query_ras_error_count,
485 .query_ras_error_address = umc_v6_1_query_ras_error_address,
486};
1/*
2 * Copyright 2019 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#include "umc_v6_1.h"
24#include "amdgpu_ras.h"
25#include "amdgpu.h"
26
27#include "rsmu/rsmu_0_0_2_offset.h"
28#include "rsmu/rsmu_0_0_2_sh_mask.h"
29#include "umc/umc_6_1_1_offset.h"
30#include "umc/umc_6_1_1_sh_mask.h"
31
32#define smnMCA_UMC0_MCUMC_ADDRT0 0x50f10
33
34/*
35 * (addr / 256) * 8192, the higher 26 bits in ErrorAddr
36 * is the index of 8KB block
37 */
38#define ADDR_OF_8KB_BLOCK(addr) (((addr) & ~0xffULL) << 5)
39/* channel index is the index of 256B block */
40#define ADDR_OF_256B_BLOCK(channel_index) ((channel_index) << 8)
41/* offset in 256B block */
42#define OFFSET_IN_256B_BLOCK(addr) ((addr) & 0xffULL)
43
44const uint32_t
45 umc_v6_1_channel_idx_tbl[UMC_V6_1_UMC_INSTANCE_NUM][UMC_V6_1_CHANNEL_INSTANCE_NUM] = {
46 {2, 18, 11, 27}, {4, 20, 13, 29},
47 {1, 17, 8, 24}, {7, 23, 14, 30},
48 {10, 26, 3, 19}, {12, 28, 5, 21},
49 {9, 25, 0, 16}, {15, 31, 6, 22}
50};
51
52static void umc_v6_1_enable_umc_index_mode(struct amdgpu_device *adev,
53 uint32_t umc_instance)
54{
55 uint32_t rsmu_umc_index;
56
57 rsmu_umc_index = RREG32_SOC15(RSMU, 0,
58 mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU);
59 rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index,
60 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
61 RSMU_UMC_INDEX_MODE_EN, 1);
62 rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index,
63 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
64 RSMU_UMC_INDEX_INSTANCE, umc_instance);
65 rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index,
66 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
67 RSMU_UMC_INDEX_WREN, 1 << umc_instance);
68 WREG32_SOC15(RSMU, 0, mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
69 rsmu_umc_index);
70}
71
72static void umc_v6_1_disable_umc_index_mode(struct amdgpu_device *adev)
73{
74 WREG32_FIELD15(RSMU, 0, RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU,
75 RSMU_UMC_INDEX_MODE_EN, 0);
76}
77
78static void umc_v6_1_query_correctable_error_count(struct amdgpu_device *adev,
79 uint32_t umc_reg_offset,
80 unsigned long *error_count)
81{
82 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
83 uint32_t ecc_err_cnt, ecc_err_cnt_addr;
84 uint64_t mc_umc_status;
85 uint32_t mc_umc_status_addr;
86
87 ecc_err_cnt_sel_addr =
88 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel);
89 ecc_err_cnt_addr =
90 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt);
91 mc_umc_status_addr =
92 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
93
94 /* select the lower chip and check the error count */
95 ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset);
96 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
97 EccErrCntCsSel, 0);
98 WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
99 ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset);
100 *error_count +=
101 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
102 UMC_V6_1_CE_CNT_INIT);
103 /* clear the lower chip err count */
104 WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
105
106 /* select the higher chip and check the err counter */
107 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
108 EccErrCntCsSel, 1);
109 WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
110 ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset);
111 *error_count +=
112 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
113 UMC_V6_1_CE_CNT_INIT);
114 /* clear the higher chip err count */
115 WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
116
117 /* check for SRAM correctable error
118 MCUMC_STATUS is a 64 bit register */
119 mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset);
120 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 &&
121 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
122 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)
123 *error_count += 1;
124}
125
126static void umc_v6_1_querry_uncorrectable_error_count(struct amdgpu_device *adev,
127 uint32_t umc_reg_offset,
128 unsigned long *error_count)
129{
130 uint64_t mc_umc_status;
131 uint32_t mc_umc_status_addr;
132
133 mc_umc_status_addr =
134 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
135
136 /* check the MCUMC_STATUS */
137 mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset);
138 if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
139 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 ||
140 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
141 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 ||
142 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 ||
143 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1))
144 *error_count += 1;
145}
146
147static void umc_v6_1_query_error_count(struct amdgpu_device *adev,
148 struct ras_err_data *err_data, uint32_t umc_reg_offset,
149 uint32_t channel_index)
150{
151 umc_v6_1_query_correctable_error_count(adev, umc_reg_offset,
152 &(err_data->ce_count));
153 umc_v6_1_querry_uncorrectable_error_count(adev, umc_reg_offset,
154 &(err_data->ue_count));
155}
156
157static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev,
158 void *ras_error_status)
159{
160 amdgpu_umc_for_each_channel(umc_v6_1_query_error_count);
161}
162
163static void umc_v6_1_query_error_address(struct amdgpu_device *adev,
164 struct ras_err_data *err_data,
165 uint32_t umc_reg_offset, uint32_t channel_index)
166{
167 uint32_t lsb, mc_umc_status_addr;
168 uint64_t mc_umc_status, err_addr;
169
170 mc_umc_status_addr =
171 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
172
173 /* skip error address process if -ENOMEM */
174 if (!err_data->err_addr) {
175 /* clear umc status */
176 WREG64_UMC(mc_umc_status_addr + umc_reg_offset, 0x0ULL);
177 return;
178 }
179
180 mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset);
181
182 /* calculate error address if ue/ce error is detected */
183 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
184 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
185 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) {
186 err_addr = RREG64_PCIE(smnMCA_UMC0_MCUMC_ADDRT0 + umc_reg_offset * 4);
187
188 /* the lowest lsb bits should be ignored */
189 lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB);
190 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
191 err_addr &= ~((0x1ULL << lsb) - 1);
192
193 /* translate umc channel address to soc pa, 3 parts are included */
194 err_data->err_addr[err_data->err_addr_cnt] =
195 ADDR_OF_8KB_BLOCK(err_addr) |
196 ADDR_OF_256B_BLOCK(channel_index) |
197 OFFSET_IN_256B_BLOCK(err_addr);
198
199 err_data->err_addr_cnt++;
200 }
201
202 /* clear umc status */
203 WREG64_UMC(mc_umc_status_addr + umc_reg_offset, 0x0ULL);
204}
205
206static void umc_v6_1_query_ras_error_address(struct amdgpu_device *adev,
207 void *ras_error_status)
208{
209 amdgpu_umc_for_each_channel(umc_v6_1_query_error_address);
210}
211
212static void umc_v6_1_ras_init_per_channel(struct amdgpu_device *adev,
213 struct ras_err_data *err_data,
214 uint32_t umc_reg_offset, uint32_t channel_index)
215{
216 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
217 uint32_t ecc_err_cnt_addr;
218
219 ecc_err_cnt_sel_addr =
220 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel);
221 ecc_err_cnt_addr =
222 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt);
223
224 /* select the lower chip and check the error count */
225 ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset);
226 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
227 EccErrCntCsSel, 0);
228 /* set ce error interrupt type to APIC based interrupt */
229 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
230 EccErrInt, 0x1);
231 WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
232 /* set error count to initial value */
233 WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
234
235 /* select the higher chip and check the err counter */
236 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
237 EccErrCntCsSel, 1);
238 WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel);
239 WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT);
240}
241
242static void umc_v6_1_ras_init(struct amdgpu_device *adev)
243{
244 void *ras_error_status = NULL;
245
246 amdgpu_umc_for_each_channel(umc_v6_1_ras_init_per_channel);
247}
248
249const struct amdgpu_umc_funcs umc_v6_1_funcs = {
250 .ras_init = umc_v6_1_ras_init,
251 .query_ras_error_count = umc_v6_1_query_ras_error_count,
252 .query_ras_error_address = umc_v6_1_query_ras_error_address,
253 .enable_umc_index_mode = umc_v6_1_enable_umc_index_mode,
254 .disable_umc_index_mode = umc_v6_1_disable_umc_index_mode,
255};