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[linux.git] / drivers / gpu / drm / amd / amdgpu / umc_v12_0.c
1 /*
2  * Copyright 2023 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_v12_0.h"
24 #include "amdgpu_ras.h"
25 #include "amdgpu_umc.h"
26 #include "amdgpu.h"
27 #include "umc/umc_12_0_0_offset.h"
28 #include "umc/umc_12_0_0_sh_mask.h"
29 #include "mp/mp_13_0_6_sh_mask.h"
30
31 const uint32_t
32         umc_v12_0_channel_idx_tbl[]
33                         [UMC_V12_0_UMC_INSTANCE_NUM]
34                         [UMC_V12_0_CHANNEL_INSTANCE_NUM] = {
35                 {{3,   7,   11,  15,  2,   6,   10,  14},  {1,   5,   9,   13,  0,   4,   8,   12},
36                  {19,  23,  27,  31,  18,  22,  26,  30},  {17,  21,  25,  29,  16,  20,  24,  28}},
37                 {{47,  43,  39,  35,  46,  42,  38,  34},  {45,  41,  37,  33,  44,  40,  36,  32},
38                  {63,  59,  55,  51,  62,  58,  54,  50},  {61,  57,  53,  49,  60,  56,  52,  48}},
39                 {{79,  75,  71,  67,  78,  74,  70,  66},  {77,  73,  69,  65,  76,  72,  68,  64},
40                  {95,  91,  87,  83,  94,  90,  86,  82},  {93,  89,  85,  81,  92,  88,  84,  80}},
41                 {{99,  103, 107, 111, 98,  102, 106, 110}, {97,  101, 105, 109, 96,  100, 104, 108},
42                  {115, 119, 123, 127, 114, 118, 122, 126}, {113, 117, 121, 125, 112, 116, 120, 124}}
43         };
44
45 /* mapping of MCA error address to normalized address */
46 static const uint32_t umc_v12_0_ma2na_mapping[] = {
47         0,  5,  6,  8,  9,  14, 12, 13,
48         10, 11, 15, 16, 17, 18, 19, 20,
49         21, 22, 23, 24, 25, 26, 27, 28,
50         24, 7,  29, 30,
51 };
52
53 static inline uint64_t get_umc_v12_0_reg_offset(struct amdgpu_device *adev,
54                                             uint32_t node_inst,
55                                             uint32_t umc_inst,
56                                             uint32_t ch_inst)
57 {
58         uint32_t index = umc_inst * adev->umc.channel_inst_num + ch_inst;
59         uint64_t cross_node_offset = (node_inst == 0) ? 0 : UMC_V12_0_CROSS_NODE_OFFSET;
60
61         umc_inst = index / 4;
62         ch_inst = index % 4;
63
64         return adev->umc.channel_offs * ch_inst + UMC_V12_0_INST_DIST * umc_inst +
65                 UMC_V12_0_NODE_DIST * node_inst + cross_node_offset;
66 }
67
68 static int umc_v12_0_reset_error_count_per_channel(struct amdgpu_device *adev,
69                                         uint32_t node_inst, uint32_t umc_inst,
70                                         uint32_t ch_inst, void *data)
71 {
72         uint64_t odecc_err_cnt_addr;
73         uint64_t umc_reg_offset =
74                 get_umc_v12_0_reg_offset(adev, node_inst, umc_inst, ch_inst);
75
76         odecc_err_cnt_addr =
77                 SOC15_REG_OFFSET(UMC, 0, regUMCCH0_OdEccErrCnt);
78
79         /* clear error count */
80         WREG32_PCIE_EXT((odecc_err_cnt_addr + umc_reg_offset) * 4,
81                         UMC_V12_0_CE_CNT_INIT);
82
83         return 0;
84 }
85
86 static void umc_v12_0_reset_error_count(struct amdgpu_device *adev)
87 {
88         amdgpu_umc_loop_channels(adev,
89                 umc_v12_0_reset_error_count_per_channel, NULL);
90 }
91
92 bool umc_v12_0_is_uncorrectable_error(struct amdgpu_device *adev, uint64_t mc_umc_status)
93 {
94         if (amdgpu_ras_is_poison_mode_supported(adev) &&
95             (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
96             (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1))
97                 return true;
98
99         return ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
100                 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 ||
101                 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 ||
102                 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1));
103 }
104
105 bool umc_v12_0_is_correctable_error(struct amdgpu_device *adev, uint64_t mc_umc_status)
106 {
107         if (amdgpu_ras_is_poison_mode_supported(adev) &&
108             (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
109             (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1))
110                 return false;
111
112         return (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
113                 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1 ||
114                 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 &&
115                 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 0) ||
116                 /* Identify data parity error in replay mode */
117                 ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 0x5 ||
118                 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 0xb) &&
119                 !(umc_v12_0_is_uncorrectable_error(adev, mc_umc_status)))));
120 }
121
122 static void umc_v12_0_query_correctable_error_count(struct amdgpu_device *adev,
123                                                    uint64_t umc_reg_offset,
124                                                    unsigned long *error_count)
125 {
126         uint64_t mc_umc_status;
127         uint64_t mc_umc_status_addr;
128
129         mc_umc_status_addr =
130                 SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_STATUST0);
131
132         /* Rely on MCUMC_STATUS for correctable error counter
133          * MCUMC_STATUS is a 64 bit register
134          */
135         mc_umc_status =
136                 RREG64_PCIE_EXT((mc_umc_status_addr + umc_reg_offset) * 4);
137
138         if (umc_v12_0_is_correctable_error(adev, mc_umc_status))
139                 *error_count += 1;
140 }
141
142 static void umc_v12_0_query_uncorrectable_error_count(struct amdgpu_device *adev,
143                                                       uint64_t umc_reg_offset,
144                                                       unsigned long *error_count)
145 {
146         uint64_t mc_umc_status;
147         uint64_t mc_umc_status_addr;
148
149         mc_umc_status_addr =
150                 SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_STATUST0);
151
152         /* Check the MCUMC_STATUS. */
153         mc_umc_status =
154                 RREG64_PCIE_EXT((mc_umc_status_addr + umc_reg_offset) * 4);
155
156         if (umc_v12_0_is_uncorrectable_error(adev, mc_umc_status))
157                 *error_count += 1;
158 }
159
160 static int umc_v12_0_query_error_count(struct amdgpu_device *adev,
161                                         uint32_t node_inst, uint32_t umc_inst,
162                                         uint32_t ch_inst, void *data)
163 {
164         struct ras_err_data *err_data = (struct ras_err_data *)data;
165         unsigned long ue_count = 0, ce_count = 0;
166
167         /* NOTE: node_inst is converted by adev->umc.active_mask and the range is [0-3],
168          * which can be used as die ID directly */
169         struct amdgpu_smuio_mcm_config_info mcm_info = {
170                 .socket_id = adev->smuio.funcs->get_socket_id(adev),
171                 .die_id = node_inst,
172         };
173
174         uint64_t umc_reg_offset =
175                 get_umc_v12_0_reg_offset(adev, node_inst, umc_inst, ch_inst);
176
177         umc_v12_0_query_correctable_error_count(adev, umc_reg_offset, &ce_count);
178         umc_v12_0_query_uncorrectable_error_count(adev, umc_reg_offset, &ue_count);
179
180         amdgpu_ras_error_statistic_ue_count(err_data, &mcm_info, NULL, ue_count);
181         amdgpu_ras_error_statistic_ce_count(err_data, &mcm_info, NULL, ce_count);
182
183         return 0;
184 }
185
186 static void umc_v12_0_query_ras_error_count(struct amdgpu_device *adev,
187                                            void *ras_error_status)
188 {
189         amdgpu_umc_loop_channels(adev,
190                 umc_v12_0_query_error_count, ras_error_status);
191
192         umc_v12_0_reset_error_count(adev);
193 }
194
195 static bool umc_v12_0_bit_wise_xor(uint32_t val)
196 {
197         bool result = 0;
198         int i;
199
200         for (i = 0; i < 32; i++)
201                 result = result ^ ((val >> i) & 0x1);
202
203         return result;
204 }
205
206 static void umc_v12_0_convert_error_address(struct amdgpu_device *adev,
207                                             struct ras_err_data *err_data, uint64_t err_addr,
208                                             uint32_t ch_inst, uint32_t umc_inst,
209                                             uint32_t node_inst)
210 {
211         uint32_t channel_index, i;
212         uint64_t soc_pa, na, retired_page, column;
213         uint32_t bank_hash0, bank_hash1, bank_hash2, bank_hash3, col, row, row_xor;
214         uint32_t bank0, bank1, bank2, bank3, bank;
215
216         bank_hash0 = (err_addr >> UMC_V12_0_MCA_B0_BIT) & 0x1ULL;
217         bank_hash1 = (err_addr >> UMC_V12_0_MCA_B1_BIT) & 0x1ULL;
218         bank_hash2 = (err_addr >> UMC_V12_0_MCA_B2_BIT) & 0x1ULL;
219         bank_hash3 = (err_addr >> UMC_V12_0_MCA_B3_BIT) & 0x1ULL;
220         col = (err_addr >> 1) & 0x1fULL;
221         row = (err_addr >> 10) & 0x3fffULL;
222
223         /* apply bank hash algorithm */
224         bank0 =
225                 bank_hash0 ^ (UMC_V12_0_XOR_EN0 &
226                 (umc_v12_0_bit_wise_xor(col & UMC_V12_0_COL_XOR0) ^
227                 (umc_v12_0_bit_wise_xor(row & UMC_V12_0_ROW_XOR0))));
228         bank1 =
229                 bank_hash1 ^ (UMC_V12_0_XOR_EN1 &
230                 (umc_v12_0_bit_wise_xor(col & UMC_V12_0_COL_XOR1) ^
231                 (umc_v12_0_bit_wise_xor(row & UMC_V12_0_ROW_XOR1))));
232         bank2 =
233                 bank_hash2 ^ (UMC_V12_0_XOR_EN2 &
234                 (umc_v12_0_bit_wise_xor(col & UMC_V12_0_COL_XOR2) ^
235                 (umc_v12_0_bit_wise_xor(row & UMC_V12_0_ROW_XOR2))));
236         bank3 =
237                 bank_hash3 ^ (UMC_V12_0_XOR_EN3 &
238                 (umc_v12_0_bit_wise_xor(col & UMC_V12_0_COL_XOR3) ^
239                 (umc_v12_0_bit_wise_xor(row & UMC_V12_0_ROW_XOR3))));
240
241         bank = bank0 | (bank1 << 1) | (bank2 << 2) | (bank3 << 3);
242         err_addr &= ~0x3c0ULL;
243         err_addr |= (bank << UMC_V12_0_MCA_B0_BIT);
244
245         na = 0x0;
246         /* convert mca error address to normalized address */
247         for (i = 1; i < ARRAY_SIZE(umc_v12_0_ma2na_mapping); i++)
248                 na |= ((err_addr >> i) & 0x1ULL) << umc_v12_0_ma2na_mapping[i];
249
250         channel_index =
251                 adev->umc.channel_idx_tbl[node_inst * adev->umc.umc_inst_num *
252                         adev->umc.channel_inst_num +
253                         umc_inst * adev->umc.channel_inst_num +
254                         ch_inst];
255         /* translate umc channel address to soc pa, 3 parts are included */
256         soc_pa = ADDR_OF_32KB_BLOCK(na) |
257                 ADDR_OF_256B_BLOCK(channel_index) |
258                 OFFSET_IN_256B_BLOCK(na);
259
260         /* the umc channel bits are not original values, they are hashed */
261         UMC_V12_0_SET_CHANNEL_HASH(channel_index, soc_pa);
262
263         /* clear [C3 C2] in soc physical address */
264         soc_pa &= ~(0x3ULL << UMC_V12_0_PA_C2_BIT);
265         /* clear [C4] in soc physical address */
266         soc_pa &= ~(0x1ULL << UMC_V12_0_PA_C4_BIT);
267
268         row_xor = row ^ (0x1ULL << 13);
269         /* loop for all possibilities of [C4 C3 C2] */
270         for (column = 0; column < UMC_V12_0_NA_MAP_PA_NUM; column++) {
271                 retired_page = soc_pa | ((column & 0x3) << UMC_V12_0_PA_C2_BIT);
272                 retired_page |= (((column & 0x4) >> 2) << UMC_V12_0_PA_C4_BIT);
273                 /* include column bit 0 and 1 */
274                 col &= 0x3;
275                 col |= (column << 2);
276                 dev_info(adev->dev,
277                         "Error Address(PA):0x%-10llx Row:0x%-4x Col:0x%-2x Bank:0x%x Channel:0x%x\n",
278                         retired_page, row, col, bank, channel_index);
279                 amdgpu_umc_fill_error_record(err_data, err_addr,
280                         retired_page, channel_index, umc_inst);
281
282                 /* shift R13 bit */
283                 retired_page ^= (0x1ULL << UMC_V12_0_PA_R13_BIT);
284                 dev_info(adev->dev,
285                         "Error Address(PA):0x%-10llx Row:0x%-4x Col:0x%-2x Bank:0x%x Channel:0x%x\n",
286                         retired_page, row_xor, col, bank, channel_index);
287                 amdgpu_umc_fill_error_record(err_data, err_addr,
288                         retired_page, channel_index, umc_inst);
289         }
290 }
291
292 static int umc_v12_0_query_error_address(struct amdgpu_device *adev,
293                                         uint32_t node_inst, uint32_t umc_inst,
294                                         uint32_t ch_inst, void *data)
295 {
296         uint64_t mc_umc_status_addr;
297         uint64_t mc_umc_status, err_addr;
298         uint64_t mc_umc_addrt0;
299         struct ras_err_data *err_data = (struct ras_err_data *)data;
300         uint64_t umc_reg_offset =
301                 get_umc_v12_0_reg_offset(adev, node_inst, umc_inst, ch_inst);
302
303         mc_umc_status_addr =
304                 SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_STATUST0);
305
306         mc_umc_status = RREG64_PCIE_EXT((mc_umc_status_addr + umc_reg_offset) * 4);
307
308         if (mc_umc_status == 0)
309                 return 0;
310
311         if (!err_data->err_addr) {
312                 /* clear umc status */
313                 WREG64_PCIE_EXT((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
314
315                 return 0;
316         }
317
318         /* calculate error address if ue error is detected */
319         if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
320             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, AddrV) == 1 &&
321             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1) {
322
323                 mc_umc_addrt0 =
324                         SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_ADDRT0);
325
326                 err_addr = RREG64_PCIE_EXT((mc_umc_addrt0 + umc_reg_offset) * 4);
327
328                 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
329
330                 umc_v12_0_convert_error_address(adev, err_data, err_addr,
331                                         ch_inst, umc_inst, node_inst);
332         }
333
334         /* clear umc status */
335         WREG64_PCIE_EXT((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
336
337         return 0;
338 }
339
340 static void umc_v12_0_query_ras_error_address(struct amdgpu_device *adev,
341                                              void *ras_error_status)
342 {
343         amdgpu_umc_loop_channels(adev,
344                 umc_v12_0_query_error_address, ras_error_status);
345 }
346
347 static int umc_v12_0_err_cnt_init_per_channel(struct amdgpu_device *adev,
348                                         uint32_t node_inst, uint32_t umc_inst,
349                                         uint32_t ch_inst, void *data)
350 {
351         uint32_t odecc_cnt_sel;
352         uint64_t odecc_cnt_sel_addr, odecc_err_cnt_addr;
353         uint64_t umc_reg_offset =
354                 get_umc_v12_0_reg_offset(adev, node_inst, umc_inst, ch_inst);
355
356         odecc_cnt_sel_addr =
357                 SOC15_REG_OFFSET(UMC, 0, regUMCCH0_OdEccCntSel);
358         odecc_err_cnt_addr =
359                 SOC15_REG_OFFSET(UMC, 0, regUMCCH0_OdEccErrCnt);
360
361         odecc_cnt_sel = RREG32_PCIE_EXT((odecc_cnt_sel_addr + umc_reg_offset) * 4);
362
363         /* set ce error interrupt type to APIC based interrupt */
364         odecc_cnt_sel = REG_SET_FIELD(odecc_cnt_sel, UMCCH0_OdEccCntSel,
365                                         OdEccErrInt, 0x1);
366         WREG32_PCIE_EXT((odecc_cnt_sel_addr + umc_reg_offset) * 4, odecc_cnt_sel);
367
368         /* set error count to initial value */
369         WREG32_PCIE_EXT((odecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V12_0_CE_CNT_INIT);
370
371         return 0;
372 }
373
374 static void umc_v12_0_ecc_info_query_ras_error_count(struct amdgpu_device *adev,
375                                         void *ras_error_status)
376 {
377         amdgpu_mca_smu_log_ras_error(adev,
378                 AMDGPU_RAS_BLOCK__UMC, AMDGPU_MCA_ERROR_TYPE_CE, ras_error_status);
379         amdgpu_mca_smu_log_ras_error(adev,
380                 AMDGPU_RAS_BLOCK__UMC, AMDGPU_MCA_ERROR_TYPE_UE, ras_error_status);
381 }
382
383 static void umc_v12_0_ecc_info_query_ras_error_address(struct amdgpu_device *adev,
384                                         void *ras_error_status)
385 {
386         struct ras_err_node *err_node;
387         uint64_t mc_umc_status;
388         struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
389
390         for_each_ras_error(err_node, err_data) {
391                 mc_umc_status = err_node->err_info.err_addr.err_status;
392                 if (!mc_umc_status)
393                         continue;
394
395                 if (umc_v12_0_is_uncorrectable_error(adev, mc_umc_status)) {
396                         uint64_t mca_addr, err_addr, mca_ipid;
397                         uint32_t InstanceIdLo;
398                         struct amdgpu_smuio_mcm_config_info *mcm_info;
399
400                         mcm_info = &err_node->err_info.mcm_info;
401                         mca_addr = err_node->err_info.err_addr.err_addr;
402                         mca_ipid = err_node->err_info.err_addr.err_ipid;
403
404                         err_addr =  REG_GET_FIELD(mca_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
405                         InstanceIdLo = REG_GET_FIELD(mca_ipid, MCMP1_IPIDT0, InstanceIdLo);
406
407                         dev_info(adev->dev, "UMC:IPID:0x%llx, aid:%d, inst:%d, ch:%d, err_addr:0x%llx\n",
408                                 mca_ipid,
409                                 mcm_info->die_id,
410                                 MCA_IPID_LO_2_UMC_INST(InstanceIdLo),
411                                 MCA_IPID_LO_2_UMC_CH(InstanceIdLo),
412                                 err_addr);
413
414                         umc_v12_0_convert_error_address(adev,
415                                 err_data, err_addr,
416                                 MCA_IPID_LO_2_UMC_CH(InstanceIdLo),
417                                 MCA_IPID_LO_2_UMC_INST(InstanceIdLo),
418                                 mcm_info->die_id);
419
420                         /* Clear umc error address content */
421                         memset(&err_node->err_info.err_addr,
422                                 0, sizeof(err_node->err_info.err_addr));
423                 }
424         }
425 }
426
427 static void umc_v12_0_err_cnt_init(struct amdgpu_device *adev)
428 {
429         amdgpu_umc_loop_channels(adev,
430                 umc_v12_0_err_cnt_init_per_channel, NULL);
431 }
432
433 static bool umc_v12_0_query_ras_poison_mode(struct amdgpu_device *adev)
434 {
435         /*
436          * Force return true, because regUMCCH0_EccCtrl
437          * is not accessible from host side
438          */
439         return true;
440 }
441
442 const struct amdgpu_ras_block_hw_ops umc_v12_0_ras_hw_ops = {
443         .query_ras_error_count = umc_v12_0_query_ras_error_count,
444         .query_ras_error_address = umc_v12_0_query_ras_error_address,
445 };
446
447 struct amdgpu_umc_ras umc_v12_0_ras = {
448         .ras_block = {
449                 .hw_ops = &umc_v12_0_ras_hw_ops,
450         },
451         .err_cnt_init = umc_v12_0_err_cnt_init,
452         .query_ras_poison_mode = umc_v12_0_query_ras_poison_mode,
453         .ecc_info_query_ras_error_count = umc_v12_0_ecc_info_query_ras_error_count,
454         .ecc_info_query_ras_error_address = umc_v12_0_ecc_info_query_ras_error_address,
455 };
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