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0d442930 LH |
1 | /* |
2 | * APM X-Gene SoC EDAC (error detection and correction) | |
3 | * | |
4 | * Copyright (c) 2015, Applied Micro Circuits Corporation | |
5 | * Author: Feng Kan <fkan@apm.com> | |
6 | * Loc Ho <lho@apm.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
22 | #include <linux/ctype.h> | |
23 | #include <linux/edac.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/mfd/syscon.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/of.h> | |
28 | #include <linux/of_address.h> | |
29 | #include <linux/regmap.h> | |
30 | ||
31 | #include "edac_core.h" | |
09bd1b4f | 32 | #include "edac_module.h" |
0d442930 LH |
33 | |
34 | #define EDAC_MOD_STR "xgene_edac" | |
35 | ||
36 | /* Global error configuration status registers (CSR) */ | |
37 | #define PCPHPERRINTSTS 0x0000 | |
38 | #define PCPHPERRINTMSK 0x0004 | |
39 | #define MCU_CTL_ERR_MASK BIT(12) | |
40 | #define IOB_PA_ERR_MASK BIT(11) | |
41 | #define IOB_BA_ERR_MASK BIT(10) | |
42 | #define IOB_XGIC_ERR_MASK BIT(9) | |
43 | #define IOB_RB_ERR_MASK BIT(8) | |
44 | #define L3C_UNCORR_ERR_MASK BIT(5) | |
45 | #define MCU_UNCORR_ERR_MASK BIT(4) | |
46 | #define PMD3_MERR_MASK BIT(3) | |
47 | #define PMD2_MERR_MASK BIT(2) | |
48 | #define PMD1_MERR_MASK BIT(1) | |
49 | #define PMD0_MERR_MASK BIT(0) | |
50 | #define PCPLPERRINTSTS 0x0008 | |
51 | #define PCPLPERRINTMSK 0x000C | |
52 | #define CSW_SWITCH_TRACE_ERR_MASK BIT(2) | |
53 | #define L3C_CORR_ERR_MASK BIT(1) | |
54 | #define MCU_CORR_ERR_MASK BIT(0) | |
55 | #define MEMERRINTSTS 0x0010 | |
56 | #define MEMERRINTMSK 0x0014 | |
57 | ||
58 | struct xgene_edac { | |
59 | struct device *dev; | |
60 | struct regmap *csw_map; | |
61 | struct regmap *mcba_map; | |
62 | struct regmap *mcbb_map; | |
63 | struct regmap *efuse_map; | |
4d67e3ce | 64 | struct regmap *rb_map; |
0d442930 LH |
65 | void __iomem *pcp_csr; |
66 | spinlock_t lock; | |
9347473c | 67 | struct dentry *dfs; |
0d442930 LH |
68 | |
69 | struct list_head mcus; | |
70 | struct list_head pmds; | |
9347473c | 71 | struct list_head l3s; |
f864b79b | 72 | struct list_head socs; |
0d442930 LH |
73 | |
74 | struct mutex mc_lock; | |
75 | int mc_active_mask; | |
76 | int mc_registered_mask; | |
77 | }; | |
78 | ||
79 | static void xgene_edac_pcp_rd(struct xgene_edac *edac, u32 reg, u32 *val) | |
80 | { | |
81 | *val = readl(edac->pcp_csr + reg); | |
82 | } | |
83 | ||
84 | static void xgene_edac_pcp_clrbits(struct xgene_edac *edac, u32 reg, | |
85 | u32 bits_mask) | |
86 | { | |
87 | u32 val; | |
88 | ||
89 | spin_lock(&edac->lock); | |
90 | val = readl(edac->pcp_csr + reg); | |
91 | val &= ~bits_mask; | |
92 | writel(val, edac->pcp_csr + reg); | |
93 | spin_unlock(&edac->lock); | |
94 | } | |
95 | ||
96 | static void xgene_edac_pcp_setbits(struct xgene_edac *edac, u32 reg, | |
97 | u32 bits_mask) | |
98 | { | |
99 | u32 val; | |
100 | ||
101 | spin_lock(&edac->lock); | |
102 | val = readl(edac->pcp_csr + reg); | |
103 | val |= bits_mask; | |
104 | writel(val, edac->pcp_csr + reg); | |
105 | spin_unlock(&edac->lock); | |
106 | } | |
107 | ||
108 | /* Memory controller error CSR */ | |
109 | #define MCU_MAX_RANK 8 | |
110 | #define MCU_RANK_STRIDE 0x40 | |
111 | ||
112 | #define MCUGECR 0x0110 | |
113 | #define MCU_GECR_DEMANDUCINTREN_MASK BIT(0) | |
114 | #define MCU_GECR_BACKUCINTREN_MASK BIT(1) | |
115 | #define MCU_GECR_CINTREN_MASK BIT(2) | |
116 | #define MUC_GECR_MCUADDRERREN_MASK BIT(9) | |
117 | #define MCUGESR 0x0114 | |
118 | #define MCU_GESR_ADDRNOMATCH_ERR_MASK BIT(7) | |
119 | #define MCU_GESR_ADDRMULTIMATCH_ERR_MASK BIT(6) | |
120 | #define MCU_GESR_PHYP_ERR_MASK BIT(3) | |
121 | #define MCUESRR0 0x0314 | |
122 | #define MCU_ESRR_MULTUCERR_MASK BIT(3) | |
123 | #define MCU_ESRR_BACKUCERR_MASK BIT(2) | |
124 | #define MCU_ESRR_DEMANDUCERR_MASK BIT(1) | |
125 | #define MCU_ESRR_CERR_MASK BIT(0) | |
126 | #define MCUESRRA0 0x0318 | |
127 | #define MCUEBLRR0 0x031c | |
128 | #define MCU_EBLRR_ERRBANK_RD(src) (((src) & 0x00000007) >> 0) | |
129 | #define MCUERCRR0 0x0320 | |
130 | #define MCU_ERCRR_ERRROW_RD(src) (((src) & 0xFFFF0000) >> 16) | |
131 | #define MCU_ERCRR_ERRCOL_RD(src) ((src) & 0x00000FFF) | |
132 | #define MCUSBECNT0 0x0324 | |
133 | #define MCU_SBECNT_COUNT(src) ((src) & 0xFFFF) | |
134 | ||
135 | #define CSW_CSWCR 0x0000 | |
136 | #define CSW_CSWCR_DUALMCB_MASK BIT(0) | |
137 | ||
138 | #define MCBADDRMR 0x0000 | |
139 | #define MCBADDRMR_MCU_INTLV_MODE_MASK BIT(3) | |
140 | #define MCBADDRMR_DUALMCU_MODE_MASK BIT(2) | |
141 | #define MCBADDRMR_MCB_INTLV_MODE_MASK BIT(1) | |
142 | #define MCBADDRMR_ADDRESS_MODE_MASK BIT(0) | |
143 | ||
144 | struct xgene_edac_mc_ctx { | |
145 | struct list_head next; | |
146 | char *name; | |
147 | struct mem_ctl_info *mci; | |
148 | struct xgene_edac *edac; | |
149 | void __iomem *mcu_csr; | |
150 | u32 mcu_id; | |
151 | }; | |
152 | ||
153 | static ssize_t xgene_edac_mc_err_inject_write(struct file *file, | |
154 | const char __user *data, | |
155 | size_t count, loff_t *ppos) | |
156 | { | |
157 | struct mem_ctl_info *mci = file->private_data; | |
158 | struct xgene_edac_mc_ctx *ctx = mci->pvt_info; | |
159 | int i; | |
160 | ||
161 | for (i = 0; i < MCU_MAX_RANK; i++) { | |
162 | writel(MCU_ESRR_MULTUCERR_MASK | MCU_ESRR_BACKUCERR_MASK | | |
163 | MCU_ESRR_DEMANDUCERR_MASK | MCU_ESRR_CERR_MASK, | |
164 | ctx->mcu_csr + MCUESRRA0 + i * MCU_RANK_STRIDE); | |
165 | } | |
166 | return count; | |
167 | } | |
168 | ||
169 | static const struct file_operations xgene_edac_mc_debug_inject_fops = { | |
170 | .open = simple_open, | |
171 | .write = xgene_edac_mc_err_inject_write, | |
172 | .llseek = generic_file_llseek, | |
173 | }; | |
174 | ||
175 | static void xgene_edac_mc_create_debugfs_node(struct mem_ctl_info *mci) | |
176 | { | |
177 | if (!IS_ENABLED(CONFIG_EDAC_DEBUG)) | |
178 | return; | |
09bd1b4f | 179 | |
0d442930 LH |
180 | if (!mci->debugfs) |
181 | return; | |
09bd1b4f BP |
182 | |
183 | edac_debugfs_create_file("inject_ctrl", S_IWUSR, mci->debugfs, mci, | |
184 | &xgene_edac_mc_debug_inject_fops); | |
0d442930 LH |
185 | } |
186 | ||
187 | static void xgene_edac_mc_check(struct mem_ctl_info *mci) | |
188 | { | |
189 | struct xgene_edac_mc_ctx *ctx = mci->pvt_info; | |
190 | unsigned int pcp_hp_stat; | |
191 | unsigned int pcp_lp_stat; | |
192 | u32 reg; | |
193 | u32 rank; | |
194 | u32 bank; | |
195 | u32 count; | |
196 | u32 col_row; | |
197 | ||
198 | xgene_edac_pcp_rd(ctx->edac, PCPHPERRINTSTS, &pcp_hp_stat); | |
199 | xgene_edac_pcp_rd(ctx->edac, PCPLPERRINTSTS, &pcp_lp_stat); | |
200 | if (!((MCU_UNCORR_ERR_MASK & pcp_hp_stat) || | |
201 | (MCU_CTL_ERR_MASK & pcp_hp_stat) || | |
202 | (MCU_CORR_ERR_MASK & pcp_lp_stat))) | |
203 | return; | |
204 | ||
205 | for (rank = 0; rank < MCU_MAX_RANK; rank++) { | |
206 | reg = readl(ctx->mcu_csr + MCUESRR0 + rank * MCU_RANK_STRIDE); | |
207 | ||
208 | /* Detect uncorrectable memory error */ | |
209 | if (reg & (MCU_ESRR_DEMANDUCERR_MASK | | |
210 | MCU_ESRR_BACKUCERR_MASK)) { | |
211 | /* Detected uncorrectable memory error */ | |
212 | edac_mc_chipset_printk(mci, KERN_ERR, "X-Gene", | |
213 | "MCU uncorrectable error at rank %d\n", rank); | |
214 | ||
215 | edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, | |
216 | 1, 0, 0, 0, 0, 0, -1, mci->ctl_name, ""); | |
217 | } | |
218 | ||
219 | /* Detect correctable memory error */ | |
220 | if (reg & MCU_ESRR_CERR_MASK) { | |
221 | bank = readl(ctx->mcu_csr + MCUEBLRR0 + | |
222 | rank * MCU_RANK_STRIDE); | |
223 | col_row = readl(ctx->mcu_csr + MCUERCRR0 + | |
224 | rank * MCU_RANK_STRIDE); | |
225 | count = readl(ctx->mcu_csr + MCUSBECNT0 + | |
226 | rank * MCU_RANK_STRIDE); | |
227 | edac_mc_chipset_printk(mci, KERN_WARNING, "X-Gene", | |
228 | "MCU correctable error at rank %d bank %d column %d row %d count %d\n", | |
229 | rank, MCU_EBLRR_ERRBANK_RD(bank), | |
230 | MCU_ERCRR_ERRCOL_RD(col_row), | |
231 | MCU_ERCRR_ERRROW_RD(col_row), | |
232 | MCU_SBECNT_COUNT(count)); | |
233 | ||
234 | edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, | |
235 | 1, 0, 0, 0, 0, 0, -1, mci->ctl_name, ""); | |
236 | } | |
237 | ||
238 | /* Clear all error registers */ | |
239 | writel(0x0, ctx->mcu_csr + MCUEBLRR0 + rank * MCU_RANK_STRIDE); | |
240 | writel(0x0, ctx->mcu_csr + MCUERCRR0 + rank * MCU_RANK_STRIDE); | |
241 | writel(0x0, ctx->mcu_csr + MCUSBECNT0 + | |
242 | rank * MCU_RANK_STRIDE); | |
243 | writel(reg, ctx->mcu_csr + MCUESRR0 + rank * MCU_RANK_STRIDE); | |
244 | } | |
245 | ||
246 | /* Detect memory controller error */ | |
247 | reg = readl(ctx->mcu_csr + MCUGESR); | |
248 | if (reg) { | |
249 | if (reg & MCU_GESR_ADDRNOMATCH_ERR_MASK) | |
250 | edac_mc_chipset_printk(mci, KERN_WARNING, "X-Gene", | |
251 | "MCU address miss-match error\n"); | |
252 | if (reg & MCU_GESR_ADDRMULTIMATCH_ERR_MASK) | |
253 | edac_mc_chipset_printk(mci, KERN_WARNING, "X-Gene", | |
254 | "MCU address multi-match error\n"); | |
255 | ||
256 | writel(reg, ctx->mcu_csr + MCUGESR); | |
257 | } | |
258 | } | |
259 | ||
260 | static void xgene_edac_mc_irq_ctl(struct mem_ctl_info *mci, bool enable) | |
261 | { | |
262 | struct xgene_edac_mc_ctx *ctx = mci->pvt_info; | |
263 | unsigned int val; | |
264 | ||
265 | if (edac_op_state != EDAC_OPSTATE_INT) | |
266 | return; | |
267 | ||
268 | mutex_lock(&ctx->edac->mc_lock); | |
269 | ||
270 | /* | |
271 | * As there is only single bit for enable error and interrupt mask, | |
272 | * we must only enable top level interrupt after all MCUs are | |
273 | * registered. Otherwise, if there is an error and the corresponding | |
274 | * MCU has not registered, the interrupt will never get cleared. To | |
275 | * determine all MCU have registered, we will keep track of active | |
276 | * MCUs and registered MCUs. | |
277 | */ | |
278 | if (enable) { | |
279 | /* Set registered MCU bit */ | |
280 | ctx->edac->mc_registered_mask |= 1 << ctx->mcu_id; | |
281 | ||
282 | /* Enable interrupt after all active MCU registered */ | |
283 | if (ctx->edac->mc_registered_mask == | |
284 | ctx->edac->mc_active_mask) { | |
285 | /* Enable memory controller top level interrupt */ | |
286 | xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK, | |
287 | MCU_UNCORR_ERR_MASK | | |
288 | MCU_CTL_ERR_MASK); | |
289 | xgene_edac_pcp_clrbits(ctx->edac, PCPLPERRINTMSK, | |
290 | MCU_CORR_ERR_MASK); | |
291 | } | |
292 | ||
293 | /* Enable MCU interrupt and error reporting */ | |
294 | val = readl(ctx->mcu_csr + MCUGECR); | |
295 | val |= MCU_GECR_DEMANDUCINTREN_MASK | | |
296 | MCU_GECR_BACKUCINTREN_MASK | | |
297 | MCU_GECR_CINTREN_MASK | | |
298 | MUC_GECR_MCUADDRERREN_MASK; | |
299 | writel(val, ctx->mcu_csr + MCUGECR); | |
300 | } else { | |
301 | /* Disable MCU interrupt */ | |
302 | val = readl(ctx->mcu_csr + MCUGECR); | |
303 | val &= ~(MCU_GECR_DEMANDUCINTREN_MASK | | |
304 | MCU_GECR_BACKUCINTREN_MASK | | |
305 | MCU_GECR_CINTREN_MASK | | |
306 | MUC_GECR_MCUADDRERREN_MASK); | |
307 | writel(val, ctx->mcu_csr + MCUGECR); | |
308 | ||
309 | /* Disable memory controller top level interrupt */ | |
310 | xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK, | |
311 | MCU_UNCORR_ERR_MASK | MCU_CTL_ERR_MASK); | |
312 | xgene_edac_pcp_setbits(ctx->edac, PCPLPERRINTMSK, | |
313 | MCU_CORR_ERR_MASK); | |
314 | ||
315 | /* Clear registered MCU bit */ | |
316 | ctx->edac->mc_registered_mask &= ~(1 << ctx->mcu_id); | |
317 | } | |
318 | ||
319 | mutex_unlock(&ctx->edac->mc_lock); | |
320 | } | |
321 | ||
322 | static int xgene_edac_mc_is_active(struct xgene_edac_mc_ctx *ctx, int mc_idx) | |
323 | { | |
324 | unsigned int reg; | |
325 | u32 mcu_mask; | |
326 | ||
327 | if (regmap_read(ctx->edac->csw_map, CSW_CSWCR, ®)) | |
328 | return 0; | |
329 | ||
330 | if (reg & CSW_CSWCR_DUALMCB_MASK) { | |
331 | /* | |
332 | * Dual MCB active - Determine if all 4 active or just MCU0 | |
333 | * and MCU2 active | |
334 | */ | |
335 | if (regmap_read(ctx->edac->mcbb_map, MCBADDRMR, ®)) | |
336 | return 0; | |
337 | mcu_mask = (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0xF : 0x5; | |
338 | } else { | |
339 | /* | |
340 | * Single MCB active - Determine if MCU0/MCU1 or just MCU0 | |
341 | * active | |
342 | */ | |
343 | if (regmap_read(ctx->edac->mcba_map, MCBADDRMR, ®)) | |
344 | return 0; | |
345 | mcu_mask = (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0x3 : 0x1; | |
346 | } | |
347 | ||
348 | /* Save active MC mask if hasn't set already */ | |
349 | if (!ctx->edac->mc_active_mask) | |
350 | ctx->edac->mc_active_mask = mcu_mask; | |
351 | ||
352 | return (mcu_mask & (1 << mc_idx)) ? 1 : 0; | |
353 | } | |
354 | ||
355 | static int xgene_edac_mc_add(struct xgene_edac *edac, struct device_node *np) | |
356 | { | |
357 | struct mem_ctl_info *mci; | |
358 | struct edac_mc_layer layers[2]; | |
359 | struct xgene_edac_mc_ctx tmp_ctx; | |
360 | struct xgene_edac_mc_ctx *ctx; | |
361 | struct resource res; | |
362 | int rc; | |
363 | ||
364 | memset(&tmp_ctx, 0, sizeof(tmp_ctx)); | |
365 | tmp_ctx.edac = edac; | |
366 | ||
367 | if (!devres_open_group(edac->dev, xgene_edac_mc_add, GFP_KERNEL)) | |
368 | return -ENOMEM; | |
369 | ||
370 | rc = of_address_to_resource(np, 0, &res); | |
371 | if (rc < 0) { | |
372 | dev_err(edac->dev, "no MCU resource address\n"); | |
373 | goto err_group; | |
374 | } | |
375 | tmp_ctx.mcu_csr = devm_ioremap_resource(edac->dev, &res); | |
376 | if (IS_ERR(tmp_ctx.mcu_csr)) { | |
377 | dev_err(edac->dev, "unable to map MCU resource\n"); | |
378 | rc = PTR_ERR(tmp_ctx.mcu_csr); | |
379 | goto err_group; | |
380 | } | |
381 | ||
382 | /* Ignore non-active MCU */ | |
383 | if (of_property_read_u32(np, "memory-controller", &tmp_ctx.mcu_id)) { | |
384 | dev_err(edac->dev, "no memory-controller property\n"); | |
385 | rc = -ENODEV; | |
386 | goto err_group; | |
387 | } | |
388 | if (!xgene_edac_mc_is_active(&tmp_ctx, tmp_ctx.mcu_id)) { | |
389 | rc = -ENODEV; | |
390 | goto err_group; | |
391 | } | |
392 | ||
393 | layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; | |
394 | layers[0].size = 4; | |
395 | layers[0].is_virt_csrow = true; | |
396 | layers[1].type = EDAC_MC_LAYER_CHANNEL; | |
397 | layers[1].size = 2; | |
398 | layers[1].is_virt_csrow = false; | |
399 | mci = edac_mc_alloc(tmp_ctx.mcu_id, ARRAY_SIZE(layers), layers, | |
400 | sizeof(*ctx)); | |
401 | if (!mci) { | |
402 | rc = -ENOMEM; | |
403 | goto err_group; | |
404 | } | |
405 | ||
406 | ctx = mci->pvt_info; | |
407 | *ctx = tmp_ctx; /* Copy over resource value */ | |
408 | ctx->name = "xgene_edac_mc_err"; | |
409 | ctx->mci = mci; | |
410 | mci->pdev = &mci->dev; | |
411 | mci->ctl_name = ctx->name; | |
412 | mci->dev_name = ctx->name; | |
413 | ||
414 | mci->mtype_cap = MEM_FLAG_RDDR | MEM_FLAG_RDDR2 | MEM_FLAG_RDDR3 | | |
415 | MEM_FLAG_DDR | MEM_FLAG_DDR2 | MEM_FLAG_DDR3; | |
416 | mci->edac_ctl_cap = EDAC_FLAG_SECDED; | |
417 | mci->edac_cap = EDAC_FLAG_SECDED; | |
418 | mci->mod_name = EDAC_MOD_STR; | |
419 | mci->mod_ver = "0.1"; | |
420 | mci->ctl_page_to_phys = NULL; | |
421 | mci->scrub_cap = SCRUB_FLAG_HW_SRC; | |
422 | mci->scrub_mode = SCRUB_HW_SRC; | |
423 | ||
424 | if (edac_op_state == EDAC_OPSTATE_POLL) | |
425 | mci->edac_check = xgene_edac_mc_check; | |
426 | ||
427 | if (edac_mc_add_mc(mci)) { | |
428 | dev_err(edac->dev, "edac_mc_add_mc failed\n"); | |
429 | rc = -EINVAL; | |
430 | goto err_free; | |
431 | } | |
432 | ||
433 | xgene_edac_mc_create_debugfs_node(mci); | |
434 | ||
435 | list_add(&ctx->next, &edac->mcus); | |
436 | ||
437 | xgene_edac_mc_irq_ctl(mci, true); | |
438 | ||
439 | devres_remove_group(edac->dev, xgene_edac_mc_add); | |
440 | ||
441 | dev_info(edac->dev, "X-Gene EDAC MC registered\n"); | |
442 | return 0; | |
443 | ||
444 | err_free: | |
445 | edac_mc_free(mci); | |
446 | err_group: | |
447 | devres_release_group(edac->dev, xgene_edac_mc_add); | |
448 | return rc; | |
449 | } | |
450 | ||
451 | static int xgene_edac_mc_remove(struct xgene_edac_mc_ctx *mcu) | |
452 | { | |
453 | xgene_edac_mc_irq_ctl(mcu->mci, false); | |
454 | edac_mc_del_mc(&mcu->mci->dev); | |
455 | edac_mc_free(mcu->mci); | |
456 | return 0; | |
457 | } | |
458 | ||
459 | /* CPU L1/L2 error CSR */ | |
460 | #define MAX_CPU_PER_PMD 2 | |
461 | #define CPU_CSR_STRIDE 0x00100000 | |
462 | #define CPU_L2C_PAGE 0x000D0000 | |
463 | #define CPU_MEMERR_L2C_PAGE 0x000E0000 | |
464 | #define CPU_MEMERR_CPU_PAGE 0x000F0000 | |
465 | ||
466 | #define MEMERR_CPU_ICFECR_PAGE_OFFSET 0x0000 | |
467 | #define MEMERR_CPU_ICFESR_PAGE_OFFSET 0x0004 | |
468 | #define MEMERR_CPU_ICFESR_ERRWAY_RD(src) (((src) & 0xFF000000) >> 24) | |
469 | #define MEMERR_CPU_ICFESR_ERRINDEX_RD(src) (((src) & 0x003F0000) >> 16) | |
470 | #define MEMERR_CPU_ICFESR_ERRINFO_RD(src) (((src) & 0x0000FF00) >> 8) | |
471 | #define MEMERR_CPU_ICFESR_ERRTYPE_RD(src) (((src) & 0x00000070) >> 4) | |
472 | #define MEMERR_CPU_ICFESR_MULTCERR_MASK BIT(2) | |
473 | #define MEMERR_CPU_ICFESR_CERR_MASK BIT(0) | |
474 | #define MEMERR_CPU_LSUESR_PAGE_OFFSET 0x000c | |
475 | #define MEMERR_CPU_LSUESR_ERRWAY_RD(src) (((src) & 0xFF000000) >> 24) | |
476 | #define MEMERR_CPU_LSUESR_ERRINDEX_RD(src) (((src) & 0x003F0000) >> 16) | |
477 | #define MEMERR_CPU_LSUESR_ERRINFO_RD(src) (((src) & 0x0000FF00) >> 8) | |
478 | #define MEMERR_CPU_LSUESR_ERRTYPE_RD(src) (((src) & 0x00000070) >> 4) | |
479 | #define MEMERR_CPU_LSUESR_MULTCERR_MASK BIT(2) | |
480 | #define MEMERR_CPU_LSUESR_CERR_MASK BIT(0) | |
481 | #define MEMERR_CPU_LSUECR_PAGE_OFFSET 0x0008 | |
482 | #define MEMERR_CPU_MMUECR_PAGE_OFFSET 0x0010 | |
483 | #define MEMERR_CPU_MMUESR_PAGE_OFFSET 0x0014 | |
484 | #define MEMERR_CPU_MMUESR_ERRWAY_RD(src) (((src) & 0xFF000000) >> 24) | |
485 | #define MEMERR_CPU_MMUESR_ERRINDEX_RD(src) (((src) & 0x007F0000) >> 16) | |
486 | #define MEMERR_CPU_MMUESR_ERRINFO_RD(src) (((src) & 0x0000FF00) >> 8) | |
487 | #define MEMERR_CPU_MMUESR_ERRREQSTR_LSU_MASK BIT(7) | |
488 | #define MEMERR_CPU_MMUESR_ERRTYPE_RD(src) (((src) & 0x00000070) >> 4) | |
489 | #define MEMERR_CPU_MMUESR_MULTCERR_MASK BIT(2) | |
490 | #define MEMERR_CPU_MMUESR_CERR_MASK BIT(0) | |
491 | #define MEMERR_CPU_ICFESRA_PAGE_OFFSET 0x0804 | |
492 | #define MEMERR_CPU_LSUESRA_PAGE_OFFSET 0x080c | |
493 | #define MEMERR_CPU_MMUESRA_PAGE_OFFSET 0x0814 | |
494 | ||
495 | #define MEMERR_L2C_L2ECR_PAGE_OFFSET 0x0000 | |
496 | #define MEMERR_L2C_L2ESR_PAGE_OFFSET 0x0004 | |
497 | #define MEMERR_L2C_L2ESR_ERRSYN_RD(src) (((src) & 0xFF000000) >> 24) | |
498 | #define MEMERR_L2C_L2ESR_ERRWAY_RD(src) (((src) & 0x00FC0000) >> 18) | |
499 | #define MEMERR_L2C_L2ESR_ERRCPU_RD(src) (((src) & 0x00020000) >> 17) | |
500 | #define MEMERR_L2C_L2ESR_ERRGROUP_RD(src) (((src) & 0x0000E000) >> 13) | |
501 | #define MEMERR_L2C_L2ESR_ERRACTION_RD(src) (((src) & 0x00001C00) >> 10) | |
502 | #define MEMERR_L2C_L2ESR_ERRTYPE_RD(src) (((src) & 0x00000300) >> 8) | |
503 | #define MEMERR_L2C_L2ESR_MULTUCERR_MASK BIT(3) | |
504 | #define MEMERR_L2C_L2ESR_MULTICERR_MASK BIT(2) | |
505 | #define MEMERR_L2C_L2ESR_UCERR_MASK BIT(1) | |
506 | #define MEMERR_L2C_L2ESR_ERR_MASK BIT(0) | |
507 | #define MEMERR_L2C_L2EALR_PAGE_OFFSET 0x0008 | |
508 | #define CPUX_L2C_L2RTOCR_PAGE_OFFSET 0x0010 | |
509 | #define MEMERR_L2C_L2EAHR_PAGE_OFFSET 0x000c | |
510 | #define CPUX_L2C_L2RTOSR_PAGE_OFFSET 0x0014 | |
511 | #define MEMERR_L2C_L2RTOSR_MULTERR_MASK BIT(1) | |
512 | #define MEMERR_L2C_L2RTOSR_ERR_MASK BIT(0) | |
513 | #define CPUX_L2C_L2RTOALR_PAGE_OFFSET 0x0018 | |
514 | #define CPUX_L2C_L2RTOAHR_PAGE_OFFSET 0x001c | |
515 | #define MEMERR_L2C_L2ESRA_PAGE_OFFSET 0x0804 | |
516 | ||
517 | /* | |
518 | * Processor Module Domain (PMD) context - Context for a pair of processsors. | |
519 | * Each PMD consists of 2 CPUs and a shared L2 cache. Each CPU consists of | |
520 | * its own L1 cache. | |
521 | */ | |
522 | struct xgene_edac_pmd_ctx { | |
523 | struct list_head next; | |
524 | struct device ddev; | |
525 | char *name; | |
526 | struct xgene_edac *edac; | |
527 | struct edac_device_ctl_info *edac_dev; | |
528 | void __iomem *pmd_csr; | |
529 | u32 pmd; | |
451bb7fb | 530 | int version; |
0d442930 LH |
531 | }; |
532 | ||
533 | static void xgene_edac_pmd_l1_check(struct edac_device_ctl_info *edac_dev, | |
534 | int cpu_idx) | |
535 | { | |
536 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
537 | void __iomem *pg_f; | |
538 | u32 val; | |
539 | ||
540 | pg_f = ctx->pmd_csr + cpu_idx * CPU_CSR_STRIDE + CPU_MEMERR_CPU_PAGE; | |
541 | ||
542 | val = readl(pg_f + MEMERR_CPU_ICFESR_PAGE_OFFSET); | |
9347473c LH |
543 | if (!val) |
544 | goto chk_lsu; | |
545 | dev_err(edac_dev->dev, | |
546 | "CPU%d L1 memory error ICF 0x%08X Way 0x%02X Index 0x%02X Info 0x%02X\n", | |
547 | ctx->pmd * MAX_CPU_PER_PMD + cpu_idx, val, | |
548 | MEMERR_CPU_ICFESR_ERRWAY_RD(val), | |
549 | MEMERR_CPU_ICFESR_ERRINDEX_RD(val), | |
550 | MEMERR_CPU_ICFESR_ERRINFO_RD(val)); | |
551 | if (val & MEMERR_CPU_ICFESR_CERR_MASK) | |
552 | dev_err(edac_dev->dev, "One or more correctable error\n"); | |
553 | if (val & MEMERR_CPU_ICFESR_MULTCERR_MASK) | |
554 | dev_err(edac_dev->dev, "Multiple correctable error\n"); | |
555 | switch (MEMERR_CPU_ICFESR_ERRTYPE_RD(val)) { | |
556 | case 1: | |
557 | dev_err(edac_dev->dev, "L1 TLB multiple hit\n"); | |
558 | break; | |
559 | case 2: | |
560 | dev_err(edac_dev->dev, "Way select multiple hit\n"); | |
561 | break; | |
562 | case 3: | |
563 | dev_err(edac_dev->dev, "Physical tag parity error\n"); | |
564 | break; | |
565 | case 4: | |
566 | case 5: | |
567 | dev_err(edac_dev->dev, "L1 data parity error\n"); | |
568 | break; | |
569 | case 6: | |
570 | dev_err(edac_dev->dev, "L1 pre-decode parity error\n"); | |
571 | break; | |
572 | } | |
0d442930 | 573 | |
9347473c LH |
574 | /* Clear any HW errors */ |
575 | writel(val, pg_f + MEMERR_CPU_ICFESR_PAGE_OFFSET); | |
0d442930 | 576 | |
9347473c LH |
577 | if (val & (MEMERR_CPU_ICFESR_CERR_MASK | |
578 | MEMERR_CPU_ICFESR_MULTCERR_MASK)) | |
579 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); | |
0d442930 | 580 | |
9347473c | 581 | chk_lsu: |
0d442930 | 582 | val = readl(pg_f + MEMERR_CPU_LSUESR_PAGE_OFFSET); |
9347473c LH |
583 | if (!val) |
584 | goto chk_mmu; | |
585 | dev_err(edac_dev->dev, | |
586 | "CPU%d memory error LSU 0x%08X Way 0x%02X Index 0x%02X Info 0x%02X\n", | |
587 | ctx->pmd * MAX_CPU_PER_PMD + cpu_idx, val, | |
588 | MEMERR_CPU_LSUESR_ERRWAY_RD(val), | |
589 | MEMERR_CPU_LSUESR_ERRINDEX_RD(val), | |
590 | MEMERR_CPU_LSUESR_ERRINFO_RD(val)); | |
591 | if (val & MEMERR_CPU_LSUESR_CERR_MASK) | |
592 | dev_err(edac_dev->dev, "One or more correctable error\n"); | |
593 | if (val & MEMERR_CPU_LSUESR_MULTCERR_MASK) | |
594 | dev_err(edac_dev->dev, "Multiple correctable error\n"); | |
595 | switch (MEMERR_CPU_LSUESR_ERRTYPE_RD(val)) { | |
596 | case 0: | |
597 | dev_err(edac_dev->dev, "Load tag error\n"); | |
598 | break; | |
599 | case 1: | |
600 | dev_err(edac_dev->dev, "Load data error\n"); | |
601 | break; | |
602 | case 2: | |
603 | dev_err(edac_dev->dev, "WSL multihit error\n"); | |
604 | break; | |
605 | case 3: | |
606 | dev_err(edac_dev->dev, "Store tag error\n"); | |
607 | break; | |
608 | case 4: | |
0d442930 | 609 | dev_err(edac_dev->dev, |
9347473c LH |
610 | "DTB multihit from load pipeline error\n"); |
611 | break; | |
612 | case 5: | |
613 | dev_err(edac_dev->dev, | |
614 | "DTB multihit from store pipeline error\n"); | |
615 | break; | |
616 | } | |
0d442930 | 617 | |
9347473c LH |
618 | /* Clear any HW errors */ |
619 | writel(val, pg_f + MEMERR_CPU_LSUESR_PAGE_OFFSET); | |
0d442930 | 620 | |
9347473c LH |
621 | if (val & (MEMERR_CPU_LSUESR_CERR_MASK | |
622 | MEMERR_CPU_LSUESR_MULTCERR_MASK)) | |
623 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); | |
0d442930 | 624 | |
9347473c | 625 | chk_mmu: |
0d442930 | 626 | val = readl(pg_f + MEMERR_CPU_MMUESR_PAGE_OFFSET); |
9347473c LH |
627 | if (!val) |
628 | return; | |
629 | dev_err(edac_dev->dev, | |
630 | "CPU%d memory error MMU 0x%08X Way 0x%02X Index 0x%02X Info 0x%02X %s\n", | |
631 | ctx->pmd * MAX_CPU_PER_PMD + cpu_idx, val, | |
632 | MEMERR_CPU_MMUESR_ERRWAY_RD(val), | |
633 | MEMERR_CPU_MMUESR_ERRINDEX_RD(val), | |
634 | MEMERR_CPU_MMUESR_ERRINFO_RD(val), | |
635 | val & MEMERR_CPU_MMUESR_ERRREQSTR_LSU_MASK ? "LSU" : "ICF"); | |
636 | if (val & MEMERR_CPU_MMUESR_CERR_MASK) | |
637 | dev_err(edac_dev->dev, "One or more correctable error\n"); | |
638 | if (val & MEMERR_CPU_MMUESR_MULTCERR_MASK) | |
639 | dev_err(edac_dev->dev, "Multiple correctable error\n"); | |
640 | switch (MEMERR_CPU_MMUESR_ERRTYPE_RD(val)) { | |
641 | case 0: | |
642 | dev_err(edac_dev->dev, "Stage 1 UTB hit error\n"); | |
643 | break; | |
644 | case 1: | |
645 | dev_err(edac_dev->dev, "Stage 1 UTB miss error\n"); | |
646 | break; | |
647 | case 2: | |
648 | dev_err(edac_dev->dev, "Stage 1 UTB allocate error\n"); | |
649 | break; | |
650 | case 3: | |
651 | dev_err(edac_dev->dev, "TMO operation single bank error\n"); | |
652 | break; | |
653 | case 4: | |
654 | dev_err(edac_dev->dev, "Stage 2 UTB error\n"); | |
655 | break; | |
656 | case 5: | |
657 | dev_err(edac_dev->dev, "Stage 2 UTB miss error\n"); | |
658 | break; | |
659 | case 6: | |
660 | dev_err(edac_dev->dev, "Stage 2 UTB allocate error\n"); | |
661 | break; | |
662 | case 7: | |
663 | dev_err(edac_dev->dev, "TMO operation multiple bank error\n"); | |
664 | break; | |
665 | } | |
0d442930 | 666 | |
9347473c LH |
667 | /* Clear any HW errors */ |
668 | writel(val, pg_f + MEMERR_CPU_MMUESR_PAGE_OFFSET); | |
0d442930 | 669 | |
9347473c | 670 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); |
0d442930 LH |
671 | } |
672 | ||
673 | static void xgene_edac_pmd_l2_check(struct edac_device_ctl_info *edac_dev) | |
674 | { | |
675 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
676 | void __iomem *pg_d; | |
677 | void __iomem *pg_e; | |
678 | u32 val_hi; | |
679 | u32 val_lo; | |
680 | u32 val; | |
681 | ||
682 | /* Check L2 */ | |
683 | pg_e = ctx->pmd_csr + CPU_MEMERR_L2C_PAGE; | |
684 | val = readl(pg_e + MEMERR_L2C_L2ESR_PAGE_OFFSET); | |
9347473c LH |
685 | if (!val) |
686 | goto chk_l2c; | |
687 | val_lo = readl(pg_e + MEMERR_L2C_L2EALR_PAGE_OFFSET); | |
688 | val_hi = readl(pg_e + MEMERR_L2C_L2EAHR_PAGE_OFFSET); | |
689 | dev_err(edac_dev->dev, | |
690 | "PMD%d memory error L2C L2ESR 0x%08X @ 0x%08X.%08X\n", | |
691 | ctx->pmd, val, val_hi, val_lo); | |
692 | dev_err(edac_dev->dev, | |
693 | "ErrSyndrome 0x%02X ErrWay 0x%02X ErrCpu %d ErrGroup 0x%02X ErrAction 0x%02X\n", | |
694 | MEMERR_L2C_L2ESR_ERRSYN_RD(val), | |
695 | MEMERR_L2C_L2ESR_ERRWAY_RD(val), | |
696 | MEMERR_L2C_L2ESR_ERRCPU_RD(val), | |
697 | MEMERR_L2C_L2ESR_ERRGROUP_RD(val), | |
698 | MEMERR_L2C_L2ESR_ERRACTION_RD(val)); | |
699 | ||
700 | if (val & MEMERR_L2C_L2ESR_ERR_MASK) | |
701 | dev_err(edac_dev->dev, "One or more correctable error\n"); | |
702 | if (val & MEMERR_L2C_L2ESR_MULTICERR_MASK) | |
703 | dev_err(edac_dev->dev, "Multiple correctable error\n"); | |
704 | if (val & MEMERR_L2C_L2ESR_UCERR_MASK) | |
705 | dev_err(edac_dev->dev, "One or more uncorrectable error\n"); | |
706 | if (val & MEMERR_L2C_L2ESR_MULTUCERR_MASK) | |
707 | dev_err(edac_dev->dev, "Multiple uncorrectable error\n"); | |
708 | ||
709 | switch (MEMERR_L2C_L2ESR_ERRTYPE_RD(val)) { | |
710 | case 0: | |
711 | dev_err(edac_dev->dev, "Outbound SDB parity error\n"); | |
712 | break; | |
713 | case 1: | |
714 | dev_err(edac_dev->dev, "Inbound SDB parity error\n"); | |
715 | break; | |
716 | case 2: | |
717 | dev_err(edac_dev->dev, "Tag ECC error\n"); | |
718 | break; | |
719 | case 3: | |
720 | dev_err(edac_dev->dev, "Data ECC error\n"); | |
721 | break; | |
0d442930 LH |
722 | } |
723 | ||
9347473c LH |
724 | /* Clear any HW errors */ |
725 | writel(val, pg_e + MEMERR_L2C_L2ESR_PAGE_OFFSET); | |
726 | ||
727 | if (val & (MEMERR_L2C_L2ESR_ERR_MASK | | |
728 | MEMERR_L2C_L2ESR_MULTICERR_MASK)) | |
729 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); | |
730 | if (val & (MEMERR_L2C_L2ESR_UCERR_MASK | | |
731 | MEMERR_L2C_L2ESR_MULTUCERR_MASK)) | |
732 | edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); | |
733 | ||
734 | chk_l2c: | |
0d442930 LH |
735 | /* Check if any memory request timed out on L2 cache */ |
736 | pg_d = ctx->pmd_csr + CPU_L2C_PAGE; | |
737 | val = readl(pg_d + CPUX_L2C_L2RTOSR_PAGE_OFFSET); | |
738 | if (val) { | |
739 | val_lo = readl(pg_d + CPUX_L2C_L2RTOALR_PAGE_OFFSET); | |
740 | val_hi = readl(pg_d + CPUX_L2C_L2RTOAHR_PAGE_OFFSET); | |
741 | dev_err(edac_dev->dev, | |
742 | "PMD%d L2C error L2C RTOSR 0x%08X @ 0x%08X.%08X\n", | |
743 | ctx->pmd, val, val_hi, val_lo); | |
744 | writel(val, pg_d + CPUX_L2C_L2RTOSR_PAGE_OFFSET); | |
745 | } | |
746 | } | |
747 | ||
748 | static void xgene_edac_pmd_check(struct edac_device_ctl_info *edac_dev) | |
749 | { | |
750 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
751 | unsigned int pcp_hp_stat; | |
752 | int i; | |
753 | ||
754 | xgene_edac_pcp_rd(ctx->edac, PCPHPERRINTSTS, &pcp_hp_stat); | |
755 | if (!((PMD0_MERR_MASK << ctx->pmd) & pcp_hp_stat)) | |
756 | return; | |
757 | ||
758 | /* Check CPU L1 error */ | |
759 | for (i = 0; i < MAX_CPU_PER_PMD; i++) | |
760 | xgene_edac_pmd_l1_check(edac_dev, i); | |
761 | ||
762 | /* Check CPU L2 error */ | |
763 | xgene_edac_pmd_l2_check(edac_dev); | |
764 | } | |
765 | ||
766 | static void xgene_edac_pmd_cpu_hw_cfg(struct edac_device_ctl_info *edac_dev, | |
767 | int cpu) | |
768 | { | |
769 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
770 | void __iomem *pg_f = ctx->pmd_csr + cpu * CPU_CSR_STRIDE + | |
771 | CPU_MEMERR_CPU_PAGE; | |
772 | ||
773 | /* | |
774 | * Enable CPU memory error: | |
775 | * MEMERR_CPU_ICFESRA, MEMERR_CPU_LSUESRA, and MEMERR_CPU_MMUESRA | |
776 | */ | |
777 | writel(0x00000301, pg_f + MEMERR_CPU_ICFECR_PAGE_OFFSET); | |
778 | writel(0x00000301, pg_f + MEMERR_CPU_LSUECR_PAGE_OFFSET); | |
779 | writel(0x00000101, pg_f + MEMERR_CPU_MMUECR_PAGE_OFFSET); | |
780 | } | |
781 | ||
0d442930 LH |
782 | static void xgene_edac_pmd_hw_cfg(struct edac_device_ctl_info *edac_dev) |
783 | { | |
784 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
785 | void __iomem *pg_d = ctx->pmd_csr + CPU_L2C_PAGE; | |
786 | void __iomem *pg_e = ctx->pmd_csr + CPU_MEMERR_L2C_PAGE; | |
787 | ||
788 | /* Enable PMD memory error - MEMERR_L2C_L2ECR and L2C_L2RTOCR */ | |
789 | writel(0x00000703, pg_e + MEMERR_L2C_L2ECR_PAGE_OFFSET); | |
790 | /* Configure L2C HW request time out feature if supported */ | |
451bb7fb | 791 | if (ctx->version > 1) |
0d442930 LH |
792 | writel(0x00000119, pg_d + CPUX_L2C_L2RTOCR_PAGE_OFFSET); |
793 | } | |
794 | ||
795 | static void xgene_edac_pmd_hw_ctl(struct edac_device_ctl_info *edac_dev, | |
796 | bool enable) | |
797 | { | |
798 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
799 | int i; | |
800 | ||
801 | /* Enable PMD error interrupt */ | |
802 | if (edac_dev->op_state == OP_RUNNING_INTERRUPT) { | |
803 | if (enable) | |
804 | xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK, | |
805 | PMD0_MERR_MASK << ctx->pmd); | |
806 | else | |
807 | xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK, | |
808 | PMD0_MERR_MASK << ctx->pmd); | |
809 | } | |
810 | ||
811 | if (enable) { | |
812 | xgene_edac_pmd_hw_cfg(edac_dev); | |
813 | ||
814 | /* Two CPUs per a PMD */ | |
815 | for (i = 0; i < MAX_CPU_PER_PMD; i++) | |
816 | xgene_edac_pmd_cpu_hw_cfg(edac_dev, i); | |
817 | } | |
818 | } | |
819 | ||
820 | static ssize_t xgene_edac_pmd_l1_inject_ctrl_write(struct file *file, | |
821 | const char __user *data, | |
822 | size_t count, loff_t *ppos) | |
823 | { | |
824 | struct edac_device_ctl_info *edac_dev = file->private_data; | |
825 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
826 | void __iomem *cpux_pg_f; | |
827 | int i; | |
828 | ||
829 | for (i = 0; i < MAX_CPU_PER_PMD; i++) { | |
830 | cpux_pg_f = ctx->pmd_csr + i * CPU_CSR_STRIDE + | |
831 | CPU_MEMERR_CPU_PAGE; | |
832 | ||
833 | writel(MEMERR_CPU_ICFESR_MULTCERR_MASK | | |
834 | MEMERR_CPU_ICFESR_CERR_MASK, | |
835 | cpux_pg_f + MEMERR_CPU_ICFESRA_PAGE_OFFSET); | |
836 | writel(MEMERR_CPU_LSUESR_MULTCERR_MASK | | |
837 | MEMERR_CPU_LSUESR_CERR_MASK, | |
838 | cpux_pg_f + MEMERR_CPU_LSUESRA_PAGE_OFFSET); | |
839 | writel(MEMERR_CPU_MMUESR_MULTCERR_MASK | | |
840 | MEMERR_CPU_MMUESR_CERR_MASK, | |
841 | cpux_pg_f + MEMERR_CPU_MMUESRA_PAGE_OFFSET); | |
842 | } | |
843 | return count; | |
844 | } | |
845 | ||
846 | static ssize_t xgene_edac_pmd_l2_inject_ctrl_write(struct file *file, | |
847 | const char __user *data, | |
848 | size_t count, loff_t *ppos) | |
849 | { | |
850 | struct edac_device_ctl_info *edac_dev = file->private_data; | |
851 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
852 | void __iomem *pg_e = ctx->pmd_csr + CPU_MEMERR_L2C_PAGE; | |
853 | ||
854 | writel(MEMERR_L2C_L2ESR_MULTUCERR_MASK | | |
855 | MEMERR_L2C_L2ESR_MULTICERR_MASK | | |
856 | MEMERR_L2C_L2ESR_UCERR_MASK | | |
857 | MEMERR_L2C_L2ESR_ERR_MASK, | |
858 | pg_e + MEMERR_L2C_L2ESRA_PAGE_OFFSET); | |
859 | return count; | |
860 | } | |
861 | ||
862 | static const struct file_operations xgene_edac_pmd_debug_inject_fops[] = { | |
863 | { | |
864 | .open = simple_open, | |
865 | .write = xgene_edac_pmd_l1_inject_ctrl_write, | |
866 | .llseek = generic_file_llseek, }, | |
867 | { | |
868 | .open = simple_open, | |
869 | .write = xgene_edac_pmd_l2_inject_ctrl_write, | |
870 | .llseek = generic_file_llseek, }, | |
871 | { } | |
872 | }; | |
873 | ||
9347473c LH |
874 | static void |
875 | xgene_edac_pmd_create_debugfs_nodes(struct edac_device_ctl_info *edac_dev) | |
0d442930 LH |
876 | { |
877 | struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info; | |
09bd1b4f | 878 | struct dentry *dbgfs_dir; |
9347473c | 879 | char name[10]; |
0d442930 | 880 | |
9347473c | 881 | if (!IS_ENABLED(CONFIG_EDAC_DEBUG) || !ctx->edac->dfs) |
0d442930 LH |
882 | return; |
883 | ||
9bc1c0c0 | 884 | snprintf(name, sizeof(name), "PMD%d", ctx->pmd); |
09bd1b4f BP |
885 | dbgfs_dir = edac_debugfs_create_dir_at(name, ctx->edac->dfs); |
886 | if (!dbgfs_dir) | |
0d442930 LH |
887 | return; |
888 | ||
09bd1b4f BP |
889 | edac_debugfs_create_file("l1_inject_ctrl", S_IWUSR, dbgfs_dir, edac_dev, |
890 | &xgene_edac_pmd_debug_inject_fops[0]); | |
891 | edac_debugfs_create_file("l2_inject_ctrl", S_IWUSR, dbgfs_dir, edac_dev, | |
892 | &xgene_edac_pmd_debug_inject_fops[1]); | |
0d442930 LH |
893 | } |
894 | ||
895 | static int xgene_edac_pmd_available(u32 efuse, int pmd) | |
896 | { | |
897 | return (efuse & (1 << pmd)) ? 0 : 1; | |
898 | } | |
899 | ||
451bb7fb AB |
900 | static int xgene_edac_pmd_add(struct xgene_edac *edac, struct device_node *np, |
901 | int version) | |
0d442930 LH |
902 | { |
903 | struct edac_device_ctl_info *edac_dev; | |
904 | struct xgene_edac_pmd_ctx *ctx; | |
905 | struct resource res; | |
906 | char edac_name[10]; | |
907 | u32 pmd; | |
908 | int rc; | |
909 | u32 val; | |
910 | ||
911 | if (!devres_open_group(edac->dev, xgene_edac_pmd_add, GFP_KERNEL)) | |
912 | return -ENOMEM; | |
913 | ||
914 | /* Determine if this PMD is disabled */ | |
915 | if (of_property_read_u32(np, "pmd-controller", &pmd)) { | |
916 | dev_err(edac->dev, "no pmd-controller property\n"); | |
917 | rc = -ENODEV; | |
918 | goto err_group; | |
919 | } | |
920 | rc = regmap_read(edac->efuse_map, 0, &val); | |
921 | if (rc) | |
922 | goto err_group; | |
923 | if (!xgene_edac_pmd_available(val, pmd)) { | |
924 | rc = -ENODEV; | |
925 | goto err_group; | |
926 | } | |
927 | ||
9bc1c0c0 | 928 | snprintf(edac_name, sizeof(edac_name), "l2c%d", pmd); |
0d442930 LH |
929 | edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx), |
930 | edac_name, 1, "l2c", 1, 2, NULL, | |
931 | 0, edac_device_alloc_index()); | |
932 | if (!edac_dev) { | |
933 | rc = -ENOMEM; | |
934 | goto err_group; | |
935 | } | |
936 | ||
937 | ctx = edac_dev->pvt_info; | |
938 | ctx->name = "xgene_pmd_err"; | |
939 | ctx->pmd = pmd; | |
940 | ctx->edac = edac; | |
941 | ctx->edac_dev = edac_dev; | |
942 | ctx->ddev = *edac->dev; | |
451bb7fb | 943 | ctx->version = version; |
0d442930 LH |
944 | edac_dev->dev = &ctx->ddev; |
945 | edac_dev->ctl_name = ctx->name; | |
946 | edac_dev->dev_name = ctx->name; | |
947 | edac_dev->mod_name = EDAC_MOD_STR; | |
948 | ||
949 | rc = of_address_to_resource(np, 0, &res); | |
950 | if (rc < 0) { | |
951 | dev_err(edac->dev, "no PMD resource address\n"); | |
952 | goto err_free; | |
953 | } | |
954 | ctx->pmd_csr = devm_ioremap_resource(edac->dev, &res); | |
955 | if (IS_ERR(ctx->pmd_csr)) { | |
956 | dev_err(edac->dev, | |
957 | "devm_ioremap_resource failed for PMD resource address\n"); | |
958 | rc = PTR_ERR(ctx->pmd_csr); | |
959 | goto err_free; | |
960 | } | |
961 | ||
962 | if (edac_op_state == EDAC_OPSTATE_POLL) | |
963 | edac_dev->edac_check = xgene_edac_pmd_check; | |
964 | ||
965 | xgene_edac_pmd_create_debugfs_nodes(edac_dev); | |
966 | ||
967 | rc = edac_device_add_device(edac_dev); | |
968 | if (rc > 0) { | |
969 | dev_err(edac->dev, "edac_device_add_device failed\n"); | |
970 | rc = -ENOMEM; | |
971 | goto err_free; | |
972 | } | |
973 | ||
974 | if (edac_op_state == EDAC_OPSTATE_INT) | |
975 | edac_dev->op_state = OP_RUNNING_INTERRUPT; | |
976 | ||
977 | list_add(&ctx->next, &edac->pmds); | |
978 | ||
979 | xgene_edac_pmd_hw_ctl(edac_dev, 1); | |
980 | ||
981 | devres_remove_group(edac->dev, xgene_edac_pmd_add); | |
982 | ||
983 | dev_info(edac->dev, "X-Gene EDAC PMD%d registered\n", ctx->pmd); | |
984 | return 0; | |
985 | ||
986 | err_free: | |
987 | edac_device_free_ctl_info(edac_dev); | |
988 | err_group: | |
989 | devres_release_group(edac->dev, xgene_edac_pmd_add); | |
990 | return rc; | |
991 | } | |
992 | ||
993 | static int xgene_edac_pmd_remove(struct xgene_edac_pmd_ctx *pmd) | |
994 | { | |
995 | struct edac_device_ctl_info *edac_dev = pmd->edac_dev; | |
996 | ||
997 | xgene_edac_pmd_hw_ctl(edac_dev, 0); | |
998 | edac_device_del_device(edac_dev->dev); | |
999 | edac_device_free_ctl_info(edac_dev); | |
1000 | return 0; | |
1001 | } | |
1002 | ||
9347473c LH |
1003 | /* L3 Error device */ |
1004 | #define L3C_ESR (0x0A * 4) | |
1005 | #define L3C_ESR_DATATAG_MASK BIT(9) | |
1006 | #define L3C_ESR_MULTIHIT_MASK BIT(8) | |
1007 | #define L3C_ESR_UCEVICT_MASK BIT(6) | |
1008 | #define L3C_ESR_MULTIUCERR_MASK BIT(5) | |
1009 | #define L3C_ESR_MULTICERR_MASK BIT(4) | |
1010 | #define L3C_ESR_UCERR_MASK BIT(3) | |
1011 | #define L3C_ESR_CERR_MASK BIT(2) | |
1012 | #define L3C_ESR_UCERRINTR_MASK BIT(1) | |
1013 | #define L3C_ESR_CERRINTR_MASK BIT(0) | |
1014 | #define L3C_ECR (0x0B * 4) | |
1015 | #define L3C_ECR_UCINTREN BIT(3) | |
1016 | #define L3C_ECR_CINTREN BIT(2) | |
1017 | #define L3C_UCERREN BIT(1) | |
1018 | #define L3C_CERREN BIT(0) | |
1019 | #define L3C_ELR (0x0C * 4) | |
1020 | #define L3C_ELR_ERRSYN(src) ((src & 0xFF800000) >> 23) | |
1021 | #define L3C_ELR_ERRWAY(src) ((src & 0x007E0000) >> 17) | |
1022 | #define L3C_ELR_AGENTID(src) ((src & 0x0001E000) >> 13) | |
1023 | #define L3C_ELR_ERRGRP(src) ((src & 0x00000F00) >> 8) | |
1024 | #define L3C_ELR_OPTYPE(src) ((src & 0x000000F0) >> 4) | |
1025 | #define L3C_ELR_PADDRHIGH(src) (src & 0x0000000F) | |
1026 | #define L3C_AELR (0x0D * 4) | |
1027 | #define L3C_BELR (0x0E * 4) | |
1028 | #define L3C_BELR_BANK(src) (src & 0x0000000F) | |
1029 | ||
1030 | struct xgene_edac_dev_ctx { | |
1031 | struct list_head next; | |
1032 | struct device ddev; | |
1033 | char *name; | |
1034 | struct xgene_edac *edac; | |
1035 | struct edac_device_ctl_info *edac_dev; | |
1036 | int edac_idx; | |
1037 | void __iomem *dev_csr; | |
1038 | int version; | |
1039 | }; | |
1040 | ||
1041 | /* | |
1042 | * Version 1 of the L3 controller has broken single bit correctable logic for | |
1043 | * certain error syndromes. Log them as uncorrectable in that case. | |
1044 | */ | |
1045 | static bool xgene_edac_l3_promote_to_uc_err(u32 l3cesr, u32 l3celr) | |
1046 | { | |
1047 | if (l3cesr & L3C_ESR_DATATAG_MASK) { | |
1048 | switch (L3C_ELR_ERRSYN(l3celr)) { | |
1049 | case 0x13C: | |
1050 | case 0x0B4: | |
1051 | case 0x007: | |
1052 | case 0x00D: | |
1053 | case 0x00E: | |
1054 | case 0x019: | |
1055 | case 0x01A: | |
1056 | case 0x01C: | |
1057 | case 0x04E: | |
1058 | case 0x041: | |
1059 | return true; | |
1060 | } | |
4d67e3ce | 1061 | } else if (L3C_ELR_ERRWAY(l3celr) == 9) |
9347473c LH |
1062 | return true; |
1063 | ||
1064 | return false; | |
1065 | } | |
1066 | ||
1067 | static void xgene_edac_l3_check(struct edac_device_ctl_info *edac_dev) | |
1068 | { | |
1069 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1070 | u32 l3cesr; | |
1071 | u32 l3celr; | |
1072 | u32 l3caelr; | |
1073 | u32 l3cbelr; | |
1074 | ||
1075 | l3cesr = readl(ctx->dev_csr + L3C_ESR); | |
1076 | if (!(l3cesr & (L3C_ESR_UCERR_MASK | L3C_ESR_CERR_MASK))) | |
1077 | return; | |
1078 | ||
1079 | if (l3cesr & L3C_ESR_UCERR_MASK) | |
1080 | dev_err(edac_dev->dev, "L3C uncorrectable error\n"); | |
1081 | if (l3cesr & L3C_ESR_CERR_MASK) | |
1082 | dev_warn(edac_dev->dev, "L3C correctable error\n"); | |
1083 | ||
1084 | l3celr = readl(ctx->dev_csr + L3C_ELR); | |
1085 | l3caelr = readl(ctx->dev_csr + L3C_AELR); | |
1086 | l3cbelr = readl(ctx->dev_csr + L3C_BELR); | |
1087 | if (l3cesr & L3C_ESR_MULTIHIT_MASK) | |
1088 | dev_err(edac_dev->dev, "L3C multiple hit error\n"); | |
1089 | if (l3cesr & L3C_ESR_UCEVICT_MASK) | |
1090 | dev_err(edac_dev->dev, | |
1091 | "L3C dropped eviction of line with error\n"); | |
1092 | if (l3cesr & L3C_ESR_MULTIUCERR_MASK) | |
1093 | dev_err(edac_dev->dev, "L3C multiple uncorrectable error\n"); | |
1094 | if (l3cesr & L3C_ESR_DATATAG_MASK) | |
1095 | dev_err(edac_dev->dev, | |
1096 | "L3C data error syndrome 0x%X group 0x%X\n", | |
1097 | L3C_ELR_ERRSYN(l3celr), L3C_ELR_ERRGRP(l3celr)); | |
1098 | else | |
1099 | dev_err(edac_dev->dev, | |
1100 | "L3C tag error syndrome 0x%X Way of Tag 0x%X Agent ID 0x%X Operation type 0x%X\n", | |
1101 | L3C_ELR_ERRSYN(l3celr), L3C_ELR_ERRWAY(l3celr), | |
1102 | L3C_ELR_AGENTID(l3celr), L3C_ELR_OPTYPE(l3celr)); | |
1103 | /* | |
1104 | * NOTE: Address [41:38] in L3C_ELR_PADDRHIGH(l3celr). | |
1105 | * Address [37:6] in l3caelr. Lower 6 bits are zero. | |
1106 | */ | |
1107 | dev_err(edac_dev->dev, "L3C error address 0x%08X.%08X bank %d\n", | |
1108 | L3C_ELR_PADDRHIGH(l3celr) << 6 | (l3caelr >> 26), | |
1109 | (l3caelr & 0x3FFFFFFF) << 6, L3C_BELR_BANK(l3cbelr)); | |
1110 | dev_err(edac_dev->dev, | |
1111 | "L3C error status register value 0x%X\n", l3cesr); | |
1112 | ||
1113 | /* Clear L3C error interrupt */ | |
1114 | writel(0, ctx->dev_csr + L3C_ESR); | |
1115 | ||
1116 | if (ctx->version <= 1 && | |
1117 | xgene_edac_l3_promote_to_uc_err(l3cesr, l3celr)) { | |
1118 | edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); | |
1119 | return; | |
1120 | } | |
1121 | if (l3cesr & L3C_ESR_CERR_MASK) | |
1122 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); | |
1123 | if (l3cesr & L3C_ESR_UCERR_MASK) | |
1124 | edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); | |
1125 | } | |
1126 | ||
1127 | static void xgene_edac_l3_hw_init(struct edac_device_ctl_info *edac_dev, | |
1128 | bool enable) | |
1129 | { | |
1130 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1131 | u32 val; | |
1132 | ||
1133 | val = readl(ctx->dev_csr + L3C_ECR); | |
1134 | val |= L3C_UCERREN | L3C_CERREN; | |
1135 | /* On disable, we just disable interrupt but keep error enabled */ | |
1136 | if (edac_dev->op_state == OP_RUNNING_INTERRUPT) { | |
1137 | if (enable) | |
1138 | val |= L3C_ECR_UCINTREN | L3C_ECR_CINTREN; | |
1139 | else | |
1140 | val &= ~(L3C_ECR_UCINTREN | L3C_ECR_CINTREN); | |
1141 | } | |
1142 | writel(val, ctx->dev_csr + L3C_ECR); | |
1143 | ||
1144 | if (edac_dev->op_state == OP_RUNNING_INTERRUPT) { | |
1145 | /* Enable/disable L3 error top level interrupt */ | |
1146 | if (enable) { | |
1147 | xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK, | |
1148 | L3C_UNCORR_ERR_MASK); | |
1149 | xgene_edac_pcp_clrbits(ctx->edac, PCPLPERRINTMSK, | |
1150 | L3C_CORR_ERR_MASK); | |
1151 | } else { | |
1152 | xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK, | |
1153 | L3C_UNCORR_ERR_MASK); | |
1154 | xgene_edac_pcp_setbits(ctx->edac, PCPLPERRINTMSK, | |
1155 | L3C_CORR_ERR_MASK); | |
1156 | } | |
1157 | } | |
1158 | } | |
1159 | ||
1160 | static ssize_t xgene_edac_l3_inject_ctrl_write(struct file *file, | |
1161 | const char __user *data, | |
1162 | size_t count, loff_t *ppos) | |
1163 | { | |
1164 | struct edac_device_ctl_info *edac_dev = file->private_data; | |
1165 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1166 | ||
1167 | /* Generate all errors */ | |
1168 | writel(0xFFFFFFFF, ctx->dev_csr + L3C_ESR); | |
1169 | return count; | |
1170 | } | |
1171 | ||
1172 | static const struct file_operations xgene_edac_l3_debug_inject_fops = { | |
1173 | .open = simple_open, | |
1174 | .write = xgene_edac_l3_inject_ctrl_write, | |
1175 | .llseek = generic_file_llseek | |
1176 | }; | |
1177 | ||
1178 | static void | |
1179 | xgene_edac_l3_create_debugfs_nodes(struct edac_device_ctl_info *edac_dev) | |
1180 | { | |
1181 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1182 | struct dentry *dbgfs_dir; | |
1183 | char name[10]; | |
1184 | ||
1185 | if (!IS_ENABLED(CONFIG_EDAC_DEBUG) || !ctx->edac->dfs) | |
1186 | return; | |
1187 | ||
1188 | snprintf(name, sizeof(name), "l3c%d", ctx->edac_idx); | |
1189 | dbgfs_dir = edac_debugfs_create_dir_at(name, ctx->edac->dfs); | |
1190 | if (!dbgfs_dir) | |
1191 | return; | |
1192 | ||
1193 | debugfs_create_file("l3_inject_ctrl", S_IWUSR, dbgfs_dir, edac_dev, | |
1194 | &xgene_edac_l3_debug_inject_fops); | |
1195 | } | |
1196 | ||
1197 | static int xgene_edac_l3_add(struct xgene_edac *edac, struct device_node *np, | |
1198 | int version) | |
1199 | { | |
1200 | struct edac_device_ctl_info *edac_dev; | |
1201 | struct xgene_edac_dev_ctx *ctx; | |
1202 | struct resource res; | |
1203 | void __iomem *dev_csr; | |
1204 | int edac_idx; | |
1205 | int rc = 0; | |
1206 | ||
1207 | if (!devres_open_group(edac->dev, xgene_edac_l3_add, GFP_KERNEL)) | |
1208 | return -ENOMEM; | |
1209 | ||
1210 | rc = of_address_to_resource(np, 0, &res); | |
1211 | if (rc < 0) { | |
1212 | dev_err(edac->dev, "no L3 resource address\n"); | |
1213 | goto err_release_group; | |
1214 | } | |
1215 | dev_csr = devm_ioremap_resource(edac->dev, &res); | |
1216 | if (IS_ERR(dev_csr)) { | |
1217 | dev_err(edac->dev, | |
1218 | "devm_ioremap_resource failed for L3 resource address\n"); | |
1219 | rc = PTR_ERR(dev_csr); | |
1220 | goto err_release_group; | |
1221 | } | |
1222 | ||
1223 | edac_idx = edac_device_alloc_index(); | |
1224 | edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx), | |
1225 | "l3c", 1, "l3c", 1, 0, NULL, 0, | |
1226 | edac_idx); | |
1227 | if (!edac_dev) { | |
1228 | rc = -ENOMEM; | |
1229 | goto err_release_group; | |
1230 | } | |
1231 | ||
1232 | ctx = edac_dev->pvt_info; | |
1233 | ctx->dev_csr = dev_csr; | |
1234 | ctx->name = "xgene_l3_err"; | |
1235 | ctx->edac_idx = edac_idx; | |
1236 | ctx->edac = edac; | |
1237 | ctx->edac_dev = edac_dev; | |
1238 | ctx->ddev = *edac->dev; | |
1239 | ctx->version = version; | |
1240 | edac_dev->dev = &ctx->ddev; | |
1241 | edac_dev->ctl_name = ctx->name; | |
1242 | edac_dev->dev_name = ctx->name; | |
1243 | edac_dev->mod_name = EDAC_MOD_STR; | |
1244 | ||
1245 | if (edac_op_state == EDAC_OPSTATE_POLL) | |
1246 | edac_dev->edac_check = xgene_edac_l3_check; | |
1247 | ||
1248 | xgene_edac_l3_create_debugfs_nodes(edac_dev); | |
1249 | ||
1250 | rc = edac_device_add_device(edac_dev); | |
1251 | if (rc > 0) { | |
1252 | dev_err(edac->dev, "failed edac_device_add_device()\n"); | |
1253 | rc = -ENOMEM; | |
1254 | goto err_ctl_free; | |
1255 | } | |
1256 | ||
1257 | if (edac_op_state == EDAC_OPSTATE_INT) | |
1258 | edac_dev->op_state = OP_RUNNING_INTERRUPT; | |
1259 | ||
1260 | list_add(&ctx->next, &edac->l3s); | |
1261 | ||
1262 | xgene_edac_l3_hw_init(edac_dev, 1); | |
1263 | ||
1264 | devres_remove_group(edac->dev, xgene_edac_l3_add); | |
1265 | ||
1266 | dev_info(edac->dev, "X-Gene EDAC L3 registered\n"); | |
1267 | return 0; | |
1268 | ||
1269 | err_ctl_free: | |
1270 | edac_device_free_ctl_info(edac_dev); | |
1271 | err_release_group: | |
1272 | devres_release_group(edac->dev, xgene_edac_l3_add); | |
1273 | return rc; | |
1274 | } | |
1275 | ||
1276 | static int xgene_edac_l3_remove(struct xgene_edac_dev_ctx *l3) | |
1277 | { | |
1278 | struct edac_device_ctl_info *edac_dev = l3->edac_dev; | |
1279 | ||
1280 | xgene_edac_l3_hw_init(edac_dev, 0); | |
1281 | edac_device_del_device(l3->edac->dev); | |
1282 | edac_device_free_ctl_info(edac_dev); | |
1283 | return 0; | |
1284 | } | |
1285 | ||
f864b79b LH |
1286 | /* SoC error device */ |
1287 | #define IOBAXIS0TRANSERRINTSTS 0x0000 | |
1288 | #define IOBAXIS0_M_ILLEGAL_ACCESS_MASK BIT(1) | |
1289 | #define IOBAXIS0_ILLEGAL_ACCESS_MASK BIT(0) | |
1290 | #define IOBAXIS0TRANSERRINTMSK 0x0004 | |
1291 | #define IOBAXIS0TRANSERRREQINFOL 0x0008 | |
1292 | #define IOBAXIS0TRANSERRREQINFOH 0x000c | |
1293 | #define REQTYPE_RD(src) (((src) & BIT(0))) | |
1294 | #define ERRADDRH_RD(src) (((src) & 0xffc00000) >> 22) | |
1295 | #define IOBAXIS1TRANSERRINTSTS 0x0010 | |
1296 | #define IOBAXIS1TRANSERRINTMSK 0x0014 | |
1297 | #define IOBAXIS1TRANSERRREQINFOL 0x0018 | |
1298 | #define IOBAXIS1TRANSERRREQINFOH 0x001c | |
1299 | #define IOBPATRANSERRINTSTS 0x0020 | |
1300 | #define IOBPA_M_REQIDRAM_CORRUPT_MASK BIT(7) | |
1301 | #define IOBPA_REQIDRAM_CORRUPT_MASK BIT(6) | |
1302 | #define IOBPA_M_TRANS_CORRUPT_MASK BIT(5) | |
1303 | #define IOBPA_TRANS_CORRUPT_MASK BIT(4) | |
1304 | #define IOBPA_M_WDATA_CORRUPT_MASK BIT(3) | |
1305 | #define IOBPA_WDATA_CORRUPT_MASK BIT(2) | |
1306 | #define IOBPA_M_RDATA_CORRUPT_MASK BIT(1) | |
1307 | #define IOBPA_RDATA_CORRUPT_MASK BIT(0) | |
1308 | #define IOBBATRANSERRINTSTS 0x0030 | |
1309 | #define M_ILLEGAL_ACCESS_MASK BIT(15) | |
1310 | #define ILLEGAL_ACCESS_MASK BIT(14) | |
1311 | #define M_WIDRAM_CORRUPT_MASK BIT(13) | |
1312 | #define WIDRAM_CORRUPT_MASK BIT(12) | |
1313 | #define M_RIDRAM_CORRUPT_MASK BIT(11) | |
1314 | #define RIDRAM_CORRUPT_MASK BIT(10) | |
1315 | #define M_TRANS_CORRUPT_MASK BIT(9) | |
1316 | #define TRANS_CORRUPT_MASK BIT(8) | |
1317 | #define M_WDATA_CORRUPT_MASK BIT(7) | |
1318 | #define WDATA_CORRUPT_MASK BIT(6) | |
1319 | #define M_RBM_POISONED_REQ_MASK BIT(5) | |
1320 | #define RBM_POISONED_REQ_MASK BIT(4) | |
1321 | #define M_XGIC_POISONED_REQ_MASK BIT(3) | |
1322 | #define XGIC_POISONED_REQ_MASK BIT(2) | |
1323 | #define M_WRERR_RESP_MASK BIT(1) | |
1324 | #define WRERR_RESP_MASK BIT(0) | |
1325 | #define IOBBATRANSERRREQINFOL 0x0038 | |
1326 | #define IOBBATRANSERRREQINFOH 0x003c | |
1327 | #define REQTYPE_F2_RD(src) ((src) & BIT(0)) | |
1328 | #define ERRADDRH_F2_RD(src) (((src) & 0xffc00000) >> 22) | |
1329 | #define IOBBATRANSERRCSWREQID 0x0040 | |
1330 | #define XGICTRANSERRINTSTS 0x0050 | |
1331 | #define M_WR_ACCESS_ERR_MASK BIT(3) | |
1332 | #define WR_ACCESS_ERR_MASK BIT(2) | |
1333 | #define M_RD_ACCESS_ERR_MASK BIT(1) | |
1334 | #define RD_ACCESS_ERR_MASK BIT(0) | |
1335 | #define XGICTRANSERRINTMSK 0x0054 | |
1336 | #define XGICTRANSERRREQINFO 0x0058 | |
1337 | #define REQTYPE_MASK BIT(26) | |
1338 | #define ERRADDR_RD(src) ((src) & 0x03ffffff) | |
1339 | #define GLBL_ERR_STS 0x0800 | |
1340 | #define MDED_ERR_MASK BIT(3) | |
1341 | #define DED_ERR_MASK BIT(2) | |
1342 | #define MSEC_ERR_MASK BIT(1) | |
1343 | #define SEC_ERR_MASK BIT(0) | |
1344 | #define GLBL_SEC_ERRL 0x0810 | |
1345 | #define GLBL_SEC_ERRH 0x0818 | |
1346 | #define GLBL_MSEC_ERRL 0x0820 | |
1347 | #define GLBL_MSEC_ERRH 0x0828 | |
1348 | #define GLBL_DED_ERRL 0x0830 | |
1349 | #define GLBL_DED_ERRLMASK 0x0834 | |
1350 | #define GLBL_DED_ERRH 0x0838 | |
1351 | #define GLBL_DED_ERRHMASK 0x083c | |
1352 | #define GLBL_MDED_ERRL 0x0840 | |
1353 | #define GLBL_MDED_ERRLMASK 0x0844 | |
1354 | #define GLBL_MDED_ERRH 0x0848 | |
1355 | #define GLBL_MDED_ERRHMASK 0x084c | |
1356 | ||
4d67e3ce LH |
1357 | /* IO Bus Registers */ |
1358 | #define RBCSR 0x0000 | |
1359 | #define STICKYERR_MASK BIT(0) | |
1360 | #define RBEIR 0x0008 | |
1361 | #define AGENT_OFFLINE_ERR_MASK BIT(30) | |
1362 | #define UNIMPL_RBPAGE_ERR_MASK BIT(29) | |
1363 | #define WORD_ALIGNED_ERR_MASK BIT(28) | |
1364 | #define PAGE_ACCESS_ERR_MASK BIT(27) | |
1365 | #define WRITE_ACCESS_MASK BIT(26) | |
1366 | #define RBERRADDR_RD(src) ((src) & 0x03FFFFFF) | |
1367 | ||
f864b79b LH |
1368 | static const char * const soc_mem_err_v1[] = { |
1369 | "10GbE0", | |
1370 | "10GbE1", | |
1371 | "Security", | |
1372 | "SATA45", | |
1373 | "SATA23/ETH23", | |
1374 | "SATA01/ETH01", | |
1375 | "USB1", | |
1376 | "USB0", | |
1377 | "QML", | |
1378 | "QM0", | |
1379 | "QM1 (XGbE01)", | |
1380 | "PCIE4", | |
1381 | "PCIE3", | |
1382 | "PCIE2", | |
1383 | "PCIE1", | |
1384 | "PCIE0", | |
1385 | "CTX Manager", | |
1386 | "OCM", | |
1387 | "1GbE", | |
1388 | "CLE", | |
1389 | "AHBC", | |
1390 | "PktDMA", | |
1391 | "GFC", | |
1392 | "MSLIM", | |
1393 | "10GbE2", | |
1394 | "10GbE3", | |
1395 | "QM2 (XGbE23)", | |
1396 | "IOB", | |
1397 | "unknown", | |
1398 | "unknown", | |
1399 | "unknown", | |
1400 | "unknown", | |
1401 | }; | |
1402 | ||
1403 | static void xgene_edac_iob_gic_report(struct edac_device_ctl_info *edac_dev) | |
1404 | { | |
1405 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1406 | u32 err_addr_lo; | |
1407 | u32 err_addr_hi; | |
1408 | u32 reg; | |
1409 | u32 info; | |
1410 | ||
1411 | /* GIC transaction error interrupt */ | |
1412 | reg = readl(ctx->dev_csr + XGICTRANSERRINTSTS); | |
1413 | if (!reg) | |
1414 | goto chk_iob_err; | |
1415 | dev_err(edac_dev->dev, "XGIC transaction error\n"); | |
1416 | if (reg & RD_ACCESS_ERR_MASK) | |
1417 | dev_err(edac_dev->dev, "XGIC read size error\n"); | |
1418 | if (reg & M_RD_ACCESS_ERR_MASK) | |
1419 | dev_err(edac_dev->dev, "Multiple XGIC read size error\n"); | |
1420 | if (reg & WR_ACCESS_ERR_MASK) | |
1421 | dev_err(edac_dev->dev, "XGIC write size error\n"); | |
1422 | if (reg & M_WR_ACCESS_ERR_MASK) | |
1423 | dev_err(edac_dev->dev, "Multiple XGIC write size error\n"); | |
1424 | info = readl(ctx->dev_csr + XGICTRANSERRREQINFO); | |
1425 | dev_err(edac_dev->dev, "XGIC %s access @ 0x%08X (0x%08X)\n", | |
1426 | info & REQTYPE_MASK ? "read" : "write", ERRADDR_RD(info), | |
1427 | info); | |
1428 | writel(reg, ctx->dev_csr + XGICTRANSERRINTSTS); | |
1429 | ||
1430 | chk_iob_err: | |
1431 | /* IOB memory error */ | |
1432 | reg = readl(ctx->dev_csr + GLBL_ERR_STS); | |
1433 | if (!reg) | |
1434 | return; | |
1435 | if (reg & SEC_ERR_MASK) { | |
1436 | err_addr_lo = readl(ctx->dev_csr + GLBL_SEC_ERRL); | |
1437 | err_addr_hi = readl(ctx->dev_csr + GLBL_SEC_ERRH); | |
1438 | dev_err(edac_dev->dev, | |
1439 | "IOB single-bit correctable memory at 0x%08X.%08X error\n", | |
1440 | err_addr_lo, err_addr_hi); | |
1441 | writel(err_addr_lo, ctx->dev_csr + GLBL_SEC_ERRL); | |
1442 | writel(err_addr_hi, ctx->dev_csr + GLBL_SEC_ERRH); | |
1443 | } | |
1444 | if (reg & MSEC_ERR_MASK) { | |
1445 | err_addr_lo = readl(ctx->dev_csr + GLBL_MSEC_ERRL); | |
1446 | err_addr_hi = readl(ctx->dev_csr + GLBL_MSEC_ERRH); | |
1447 | dev_err(edac_dev->dev, | |
1448 | "IOB multiple single-bit correctable memory at 0x%08X.%08X error\n", | |
1449 | err_addr_lo, err_addr_hi); | |
1450 | writel(err_addr_lo, ctx->dev_csr + GLBL_MSEC_ERRL); | |
1451 | writel(err_addr_hi, ctx->dev_csr + GLBL_MSEC_ERRH); | |
1452 | } | |
1453 | if (reg & (SEC_ERR_MASK | MSEC_ERR_MASK)) | |
1454 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); | |
1455 | ||
1456 | if (reg & DED_ERR_MASK) { | |
1457 | err_addr_lo = readl(ctx->dev_csr + GLBL_DED_ERRL); | |
1458 | err_addr_hi = readl(ctx->dev_csr + GLBL_DED_ERRH); | |
1459 | dev_err(edac_dev->dev, | |
1460 | "IOB double-bit uncorrectable memory at 0x%08X.%08X error\n", | |
1461 | err_addr_lo, err_addr_hi); | |
1462 | writel(err_addr_lo, ctx->dev_csr + GLBL_DED_ERRL); | |
1463 | writel(err_addr_hi, ctx->dev_csr + GLBL_DED_ERRH); | |
1464 | } | |
1465 | if (reg & MDED_ERR_MASK) { | |
1466 | err_addr_lo = readl(ctx->dev_csr + GLBL_MDED_ERRL); | |
1467 | err_addr_hi = readl(ctx->dev_csr + GLBL_MDED_ERRH); | |
1468 | dev_err(edac_dev->dev, | |
1469 | "Multiple IOB double-bit uncorrectable memory at 0x%08X.%08X error\n", | |
1470 | err_addr_lo, err_addr_hi); | |
1471 | writel(err_addr_lo, ctx->dev_csr + GLBL_MDED_ERRL); | |
1472 | writel(err_addr_hi, ctx->dev_csr + GLBL_MDED_ERRH); | |
1473 | } | |
1474 | if (reg & (DED_ERR_MASK | MDED_ERR_MASK)) | |
1475 | edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); | |
1476 | } | |
1477 | ||
1478 | static void xgene_edac_rb_report(struct edac_device_ctl_info *edac_dev) | |
1479 | { | |
1480 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1481 | u32 err_addr_lo; | |
1482 | u32 err_addr_hi; | |
1483 | u32 reg; | |
1484 | ||
4d67e3ce LH |
1485 | /* If the register bus resource isn't available, just skip it */ |
1486 | if (!ctx->edac->rb_map) | |
1487 | goto rb_skip; | |
1488 | ||
1489 | /* | |
1490 | * Check RB access errors | |
1491 | * 1. Out of range | |
1492 | * 2. Un-implemented page | |
1493 | * 3. Un-aligned access | |
1494 | * 4. Offline slave IP | |
1495 | */ | |
1496 | if (regmap_read(ctx->edac->rb_map, RBCSR, ®)) | |
1497 | return; | |
1498 | if (reg & STICKYERR_MASK) { | |
1499 | bool write; | |
1500 | u32 address; | |
1501 | ||
1502 | dev_err(edac_dev->dev, "IOB bus access error(s)\n"); | |
1503 | if (regmap_read(ctx->edac->rb_map, RBEIR, ®)) | |
1504 | return; | |
1505 | write = reg & WRITE_ACCESS_MASK ? 1 : 0; | |
1506 | address = RBERRADDR_RD(reg); | |
1507 | if (reg & AGENT_OFFLINE_ERR_MASK) | |
1508 | dev_err(edac_dev->dev, | |
1509 | "IOB bus %s access to offline agent error\n", | |
1510 | write ? "write" : "read"); | |
1511 | if (reg & UNIMPL_RBPAGE_ERR_MASK) | |
1512 | dev_err(edac_dev->dev, | |
1513 | "IOB bus %s access to unimplemented page error\n", | |
1514 | write ? "write" : "read"); | |
1515 | if (reg & WORD_ALIGNED_ERR_MASK) | |
1516 | dev_err(edac_dev->dev, | |
1517 | "IOB bus %s word aligned access error\n", | |
1518 | write ? "write" : "read"); | |
1519 | if (reg & PAGE_ACCESS_ERR_MASK) | |
1520 | dev_err(edac_dev->dev, | |
1521 | "IOB bus %s to page out of range access error\n", | |
1522 | write ? "write" : "read"); | |
1523 | if (regmap_write(ctx->edac->rb_map, RBEIR, 0)) | |
1524 | return; | |
1525 | if (regmap_write(ctx->edac->rb_map, RBCSR, 0)) | |
1526 | return; | |
1527 | } | |
1528 | rb_skip: | |
1529 | ||
f864b79b LH |
1530 | /* IOB Bridge agent transaction error interrupt */ |
1531 | reg = readl(ctx->dev_csr + IOBBATRANSERRINTSTS); | |
1532 | if (!reg) | |
1533 | return; | |
1534 | ||
1535 | dev_err(edac_dev->dev, "IOB bridge agent (BA) transaction error\n"); | |
1536 | if (reg & WRERR_RESP_MASK) | |
1537 | dev_err(edac_dev->dev, "IOB BA write response error\n"); | |
1538 | if (reg & M_WRERR_RESP_MASK) | |
1539 | dev_err(edac_dev->dev, | |
1540 | "Multiple IOB BA write response error\n"); | |
1541 | if (reg & XGIC_POISONED_REQ_MASK) | |
1542 | dev_err(edac_dev->dev, "IOB BA XGIC poisoned write error\n"); | |
1543 | if (reg & M_XGIC_POISONED_REQ_MASK) | |
1544 | dev_err(edac_dev->dev, | |
1545 | "Multiple IOB BA XGIC poisoned write error\n"); | |
1546 | if (reg & RBM_POISONED_REQ_MASK) | |
1547 | dev_err(edac_dev->dev, "IOB BA RBM poisoned write error\n"); | |
1548 | if (reg & M_RBM_POISONED_REQ_MASK) | |
1549 | dev_err(edac_dev->dev, | |
1550 | "Multiple IOB BA RBM poisoned write error\n"); | |
1551 | if (reg & WDATA_CORRUPT_MASK) | |
1552 | dev_err(edac_dev->dev, "IOB BA write error\n"); | |
1553 | if (reg & M_WDATA_CORRUPT_MASK) | |
1554 | dev_err(edac_dev->dev, "Multiple IOB BA write error\n"); | |
1555 | if (reg & TRANS_CORRUPT_MASK) | |
1556 | dev_err(edac_dev->dev, "IOB BA transaction error\n"); | |
1557 | if (reg & M_TRANS_CORRUPT_MASK) | |
1558 | dev_err(edac_dev->dev, "Multiple IOB BA transaction error\n"); | |
1559 | if (reg & RIDRAM_CORRUPT_MASK) | |
1560 | dev_err(edac_dev->dev, | |
1561 | "IOB BA RDIDRAM read transaction ID error\n"); | |
1562 | if (reg & M_RIDRAM_CORRUPT_MASK) | |
1563 | dev_err(edac_dev->dev, | |
1564 | "Multiple IOB BA RDIDRAM read transaction ID error\n"); | |
1565 | if (reg & WIDRAM_CORRUPT_MASK) | |
1566 | dev_err(edac_dev->dev, | |
1567 | "IOB BA RDIDRAM write transaction ID error\n"); | |
1568 | if (reg & M_WIDRAM_CORRUPT_MASK) | |
1569 | dev_err(edac_dev->dev, | |
1570 | "Multiple IOB BA RDIDRAM write transaction ID error\n"); | |
1571 | if (reg & ILLEGAL_ACCESS_MASK) | |
1572 | dev_err(edac_dev->dev, | |
1573 | "IOB BA XGIC/RB illegal access error\n"); | |
1574 | if (reg & M_ILLEGAL_ACCESS_MASK) | |
1575 | dev_err(edac_dev->dev, | |
1576 | "Multiple IOB BA XGIC/RB illegal access error\n"); | |
1577 | ||
1578 | err_addr_lo = readl(ctx->dev_csr + IOBBATRANSERRREQINFOL); | |
1579 | err_addr_hi = readl(ctx->dev_csr + IOBBATRANSERRREQINFOH); | |
1580 | dev_err(edac_dev->dev, "IOB BA %s access at 0x%02X.%08X (0x%08X)\n", | |
1581 | REQTYPE_F2_RD(err_addr_hi) ? "read" : "write", | |
1582 | ERRADDRH_F2_RD(err_addr_hi), err_addr_lo, err_addr_hi); | |
1583 | if (reg & WRERR_RESP_MASK) | |
1584 | dev_err(edac_dev->dev, "IOB BA requestor ID 0x%08X\n", | |
1585 | readl(ctx->dev_csr + IOBBATRANSERRCSWREQID)); | |
1586 | writel(reg, ctx->dev_csr + IOBBATRANSERRINTSTS); | |
1587 | } | |
1588 | ||
1589 | static void xgene_edac_pa_report(struct edac_device_ctl_info *edac_dev) | |
1590 | { | |
1591 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1592 | u32 err_addr_lo; | |
1593 | u32 err_addr_hi; | |
1594 | u32 reg; | |
1595 | ||
1596 | /* IOB Processing agent transaction error interrupt */ | |
1597 | reg = readl(ctx->dev_csr + IOBPATRANSERRINTSTS); | |
1598 | if (!reg) | |
1599 | goto chk_iob_axi0; | |
1600 | dev_err(edac_dev->dev, "IOB procesing agent (PA) transaction error\n"); | |
1601 | if (reg & IOBPA_RDATA_CORRUPT_MASK) | |
1602 | dev_err(edac_dev->dev, "IOB PA read data RAM error\n"); | |
1603 | if (reg & IOBPA_M_RDATA_CORRUPT_MASK) | |
1604 | dev_err(edac_dev->dev, | |
1605 | "Mutilple IOB PA read data RAM error\n"); | |
1606 | if (reg & IOBPA_WDATA_CORRUPT_MASK) | |
1607 | dev_err(edac_dev->dev, "IOB PA write data RAM error\n"); | |
1608 | if (reg & IOBPA_M_WDATA_CORRUPT_MASK) | |
1609 | dev_err(edac_dev->dev, | |
1610 | "Mutilple IOB PA write data RAM error\n"); | |
1611 | if (reg & IOBPA_TRANS_CORRUPT_MASK) | |
1612 | dev_err(edac_dev->dev, "IOB PA transaction error\n"); | |
1613 | if (reg & IOBPA_M_TRANS_CORRUPT_MASK) | |
1614 | dev_err(edac_dev->dev, "Mutilple IOB PA transaction error\n"); | |
1615 | if (reg & IOBPA_REQIDRAM_CORRUPT_MASK) | |
1616 | dev_err(edac_dev->dev, "IOB PA transaction ID RAM error\n"); | |
1617 | if (reg & IOBPA_M_REQIDRAM_CORRUPT_MASK) | |
1618 | dev_err(edac_dev->dev, | |
1619 | "Multiple IOB PA transaction ID RAM error\n"); | |
1620 | writel(reg, ctx->dev_csr + IOBPATRANSERRINTSTS); | |
1621 | ||
1622 | chk_iob_axi0: | |
1623 | /* IOB AXI0 Error */ | |
1624 | reg = readl(ctx->dev_csr + IOBAXIS0TRANSERRINTSTS); | |
1625 | if (!reg) | |
1626 | goto chk_iob_axi1; | |
1627 | err_addr_lo = readl(ctx->dev_csr + IOBAXIS0TRANSERRREQINFOL); | |
1628 | err_addr_hi = readl(ctx->dev_csr + IOBAXIS0TRANSERRREQINFOH); | |
1629 | dev_err(edac_dev->dev, | |
1630 | "%sAXI slave 0 illegal %s access @ 0x%02X.%08X (0x%08X)\n", | |
1631 | reg & IOBAXIS0_M_ILLEGAL_ACCESS_MASK ? "Multiple " : "", | |
1632 | REQTYPE_RD(err_addr_hi) ? "read" : "write", | |
1633 | ERRADDRH_RD(err_addr_hi), err_addr_lo, err_addr_hi); | |
1634 | writel(reg, ctx->dev_csr + IOBAXIS0TRANSERRINTSTS); | |
1635 | ||
1636 | chk_iob_axi1: | |
1637 | /* IOB AXI1 Error */ | |
1638 | reg = readl(ctx->dev_csr + IOBAXIS1TRANSERRINTSTS); | |
1639 | if (!reg) | |
1640 | return; | |
1641 | err_addr_lo = readl(ctx->dev_csr + IOBAXIS1TRANSERRREQINFOL); | |
1642 | err_addr_hi = readl(ctx->dev_csr + IOBAXIS1TRANSERRREQINFOH); | |
1643 | dev_err(edac_dev->dev, | |
1644 | "%sAXI slave 1 illegal %s access @ 0x%02X.%08X (0x%08X)\n", | |
1645 | reg & IOBAXIS0_M_ILLEGAL_ACCESS_MASK ? "Multiple " : "", | |
1646 | REQTYPE_RD(err_addr_hi) ? "read" : "write", | |
1647 | ERRADDRH_RD(err_addr_hi), err_addr_lo, err_addr_hi); | |
1648 | writel(reg, ctx->dev_csr + IOBAXIS1TRANSERRINTSTS); | |
1649 | } | |
1650 | ||
1651 | static void xgene_edac_soc_check(struct edac_device_ctl_info *edac_dev) | |
1652 | { | |
1653 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1654 | const char * const *soc_mem_err = NULL; | |
1655 | u32 pcp_hp_stat; | |
1656 | u32 pcp_lp_stat; | |
1657 | u32 reg; | |
1658 | int i; | |
1659 | ||
1660 | xgene_edac_pcp_rd(ctx->edac, PCPHPERRINTSTS, &pcp_hp_stat); | |
1661 | xgene_edac_pcp_rd(ctx->edac, PCPLPERRINTSTS, &pcp_lp_stat); | |
1662 | xgene_edac_pcp_rd(ctx->edac, MEMERRINTSTS, ®); | |
1663 | if (!((pcp_hp_stat & (IOB_PA_ERR_MASK | IOB_BA_ERR_MASK | | |
1664 | IOB_XGIC_ERR_MASK | IOB_RB_ERR_MASK)) || | |
1665 | (pcp_lp_stat & CSW_SWITCH_TRACE_ERR_MASK) || reg)) | |
1666 | return; | |
1667 | ||
1668 | if (pcp_hp_stat & IOB_XGIC_ERR_MASK) | |
1669 | xgene_edac_iob_gic_report(edac_dev); | |
1670 | ||
1671 | if (pcp_hp_stat & (IOB_RB_ERR_MASK | IOB_BA_ERR_MASK)) | |
1672 | xgene_edac_rb_report(edac_dev); | |
1673 | ||
1674 | if (pcp_hp_stat & IOB_PA_ERR_MASK) | |
1675 | xgene_edac_pa_report(edac_dev); | |
1676 | ||
1677 | if (pcp_lp_stat & CSW_SWITCH_TRACE_ERR_MASK) { | |
1678 | dev_info(edac_dev->dev, | |
1679 | "CSW switch trace correctable memory parity error\n"); | |
1680 | edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name); | |
1681 | } | |
1682 | ||
1683 | if (!reg) | |
1684 | return; | |
1685 | if (ctx->version == 1) | |
1686 | soc_mem_err = soc_mem_err_v1; | |
1687 | if (!soc_mem_err) { | |
1688 | dev_err(edac_dev->dev, "SoC memory parity error 0x%08X\n", | |
1689 | reg); | |
1690 | edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); | |
1691 | return; | |
1692 | } | |
1693 | for (i = 0; i < 31; i++) { | |
1694 | if (reg & (1 << i)) { | |
1695 | dev_err(edac_dev->dev, "%s memory parity error\n", | |
1696 | soc_mem_err[i]); | |
1697 | edac_device_handle_ue(edac_dev, 0, 0, | |
1698 | edac_dev->ctl_name); | |
1699 | } | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | static void xgene_edac_soc_hw_init(struct edac_device_ctl_info *edac_dev, | |
1704 | bool enable) | |
1705 | { | |
1706 | struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info; | |
1707 | ||
1708 | /* Enable SoC IP error interrupt */ | |
1709 | if (edac_dev->op_state == OP_RUNNING_INTERRUPT) { | |
1710 | if (enable) { | |
1711 | xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK, | |
1712 | IOB_PA_ERR_MASK | | |
1713 | IOB_BA_ERR_MASK | | |
1714 | IOB_XGIC_ERR_MASK | | |
1715 | IOB_RB_ERR_MASK); | |
1716 | xgene_edac_pcp_clrbits(ctx->edac, PCPLPERRINTMSK, | |
1717 | CSW_SWITCH_TRACE_ERR_MASK); | |
1718 | } else { | |
1719 | xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK, | |
1720 | IOB_PA_ERR_MASK | | |
1721 | IOB_BA_ERR_MASK | | |
1722 | IOB_XGIC_ERR_MASK | | |
1723 | IOB_RB_ERR_MASK); | |
1724 | xgene_edac_pcp_setbits(ctx->edac, PCPLPERRINTMSK, | |
1725 | CSW_SWITCH_TRACE_ERR_MASK); | |
1726 | } | |
1727 | ||
1728 | writel(enable ? 0x0 : 0xFFFFFFFF, | |
1729 | ctx->dev_csr + IOBAXIS0TRANSERRINTMSK); | |
1730 | writel(enable ? 0x0 : 0xFFFFFFFF, | |
1731 | ctx->dev_csr + IOBAXIS1TRANSERRINTMSK); | |
1732 | writel(enable ? 0x0 : 0xFFFFFFFF, | |
1733 | ctx->dev_csr + XGICTRANSERRINTMSK); | |
1734 | ||
1735 | xgene_edac_pcp_setbits(ctx->edac, MEMERRINTMSK, | |
1736 | enable ? 0x0 : 0xFFFFFFFF); | |
1737 | } | |
1738 | } | |
1739 | ||
1740 | static int xgene_edac_soc_add(struct xgene_edac *edac, struct device_node *np, | |
1741 | int version) | |
1742 | { | |
1743 | struct edac_device_ctl_info *edac_dev; | |
1744 | struct xgene_edac_dev_ctx *ctx; | |
1745 | void __iomem *dev_csr; | |
1746 | struct resource res; | |
1747 | int edac_idx; | |
1748 | int rc; | |
1749 | ||
1750 | if (!devres_open_group(edac->dev, xgene_edac_soc_add, GFP_KERNEL)) | |
1751 | return -ENOMEM; | |
1752 | ||
1753 | rc = of_address_to_resource(np, 0, &res); | |
1754 | if (rc < 0) { | |
1755 | dev_err(edac->dev, "no SoC resource address\n"); | |
1756 | goto err_release_group; | |
1757 | } | |
1758 | dev_csr = devm_ioremap_resource(edac->dev, &res); | |
1759 | if (IS_ERR(dev_csr)) { | |
1760 | dev_err(edac->dev, | |
1761 | "devm_ioremap_resource failed for soc resource address\n"); | |
1762 | rc = PTR_ERR(dev_csr); | |
1763 | goto err_release_group; | |
1764 | } | |
1765 | ||
1766 | edac_idx = edac_device_alloc_index(); | |
1767 | edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx), | |
1768 | "SOC", 1, "SOC", 1, 2, NULL, 0, | |
1769 | edac_idx); | |
1770 | if (!edac_dev) { | |
1771 | rc = -ENOMEM; | |
1772 | goto err_release_group; | |
1773 | } | |
1774 | ||
1775 | ctx = edac_dev->pvt_info; | |
1776 | ctx->dev_csr = dev_csr; | |
1777 | ctx->name = "xgene_soc_err"; | |
1778 | ctx->edac_idx = edac_idx; | |
1779 | ctx->edac = edac; | |
1780 | ctx->edac_dev = edac_dev; | |
1781 | ctx->ddev = *edac->dev; | |
1782 | ctx->version = version; | |
1783 | edac_dev->dev = &ctx->ddev; | |
1784 | edac_dev->ctl_name = ctx->name; | |
1785 | edac_dev->dev_name = ctx->name; | |
1786 | edac_dev->mod_name = EDAC_MOD_STR; | |
1787 | ||
1788 | if (edac_op_state == EDAC_OPSTATE_POLL) | |
1789 | edac_dev->edac_check = xgene_edac_soc_check; | |
1790 | ||
1791 | rc = edac_device_add_device(edac_dev); | |
1792 | if (rc > 0) { | |
1793 | dev_err(edac->dev, "failed edac_device_add_device()\n"); | |
1794 | rc = -ENOMEM; | |
1795 | goto err_ctl_free; | |
1796 | } | |
1797 | ||
1798 | if (edac_op_state == EDAC_OPSTATE_INT) | |
1799 | edac_dev->op_state = OP_RUNNING_INTERRUPT; | |
1800 | ||
1801 | list_add(&ctx->next, &edac->socs); | |
1802 | ||
1803 | xgene_edac_soc_hw_init(edac_dev, 1); | |
1804 | ||
1805 | devres_remove_group(edac->dev, xgene_edac_soc_add); | |
1806 | ||
1807 | dev_info(edac->dev, "X-Gene EDAC SoC registered\n"); | |
1808 | ||
1809 | return 0; | |
1810 | ||
1811 | err_ctl_free: | |
1812 | edac_device_free_ctl_info(edac_dev); | |
1813 | err_release_group: | |
1814 | devres_release_group(edac->dev, xgene_edac_soc_add); | |
1815 | return rc; | |
1816 | } | |
1817 | ||
1818 | static int xgene_edac_soc_remove(struct xgene_edac_dev_ctx *soc) | |
1819 | { | |
1820 | struct edac_device_ctl_info *edac_dev = soc->edac_dev; | |
1821 | ||
1822 | xgene_edac_soc_hw_init(edac_dev, 0); | |
1823 | edac_device_del_device(soc->edac->dev); | |
1824 | edac_device_free_ctl_info(edac_dev); | |
1825 | return 0; | |
1826 | } | |
1827 | ||
0d442930 LH |
1828 | static irqreturn_t xgene_edac_isr(int irq, void *dev_id) |
1829 | { | |
1830 | struct xgene_edac *ctx = dev_id; | |
1831 | struct xgene_edac_pmd_ctx *pmd; | |
9347473c | 1832 | struct xgene_edac_dev_ctx *node; |
0d442930 LH |
1833 | unsigned int pcp_hp_stat; |
1834 | unsigned int pcp_lp_stat; | |
1835 | ||
1836 | xgene_edac_pcp_rd(ctx, PCPHPERRINTSTS, &pcp_hp_stat); | |
1837 | xgene_edac_pcp_rd(ctx, PCPLPERRINTSTS, &pcp_lp_stat); | |
1838 | if ((MCU_UNCORR_ERR_MASK & pcp_hp_stat) || | |
1839 | (MCU_CTL_ERR_MASK & pcp_hp_stat) || | |
1840 | (MCU_CORR_ERR_MASK & pcp_lp_stat)) { | |
1841 | struct xgene_edac_mc_ctx *mcu; | |
1842 | ||
9347473c | 1843 | list_for_each_entry(mcu, &ctx->mcus, next) |
0d442930 | 1844 | xgene_edac_mc_check(mcu->mci); |
0d442930 LH |
1845 | } |
1846 | ||
1847 | list_for_each_entry(pmd, &ctx->pmds, next) { | |
1848 | if ((PMD0_MERR_MASK << pmd->pmd) & pcp_hp_stat) | |
1849 | xgene_edac_pmd_check(pmd->edac_dev); | |
1850 | } | |
1851 | ||
9347473c LH |
1852 | list_for_each_entry(node, &ctx->l3s, next) |
1853 | xgene_edac_l3_check(node->edac_dev); | |
1854 | ||
f864b79b LH |
1855 | list_for_each_entry(node, &ctx->socs, next) |
1856 | xgene_edac_soc_check(node->edac_dev); | |
1857 | ||
0d442930 LH |
1858 | return IRQ_HANDLED; |
1859 | } | |
1860 | ||
1861 | static int xgene_edac_probe(struct platform_device *pdev) | |
1862 | { | |
1863 | struct xgene_edac *edac; | |
1864 | struct device_node *child; | |
1865 | struct resource *res; | |
1866 | int rc; | |
1867 | ||
1868 | edac = devm_kzalloc(&pdev->dev, sizeof(*edac), GFP_KERNEL); | |
1869 | if (!edac) | |
1870 | return -ENOMEM; | |
1871 | ||
1872 | edac->dev = &pdev->dev; | |
1873 | platform_set_drvdata(pdev, edac); | |
1874 | INIT_LIST_HEAD(&edac->mcus); | |
1875 | INIT_LIST_HEAD(&edac->pmds); | |
9347473c | 1876 | INIT_LIST_HEAD(&edac->l3s); |
f864b79b | 1877 | INIT_LIST_HEAD(&edac->socs); |
0d442930 LH |
1878 | spin_lock_init(&edac->lock); |
1879 | mutex_init(&edac->mc_lock); | |
1880 | ||
1881 | edac->csw_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, | |
1882 | "regmap-csw"); | |
1883 | if (IS_ERR(edac->csw_map)) { | |
1884 | dev_err(edac->dev, "unable to get syscon regmap csw\n"); | |
1885 | rc = PTR_ERR(edac->csw_map); | |
1886 | goto out_err; | |
1887 | } | |
1888 | ||
1889 | edac->mcba_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, | |
1890 | "regmap-mcba"); | |
1891 | if (IS_ERR(edac->mcba_map)) { | |
1892 | dev_err(edac->dev, "unable to get syscon regmap mcba\n"); | |
1893 | rc = PTR_ERR(edac->mcba_map); | |
1894 | goto out_err; | |
1895 | } | |
1896 | ||
1897 | edac->mcbb_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, | |
1898 | "regmap-mcbb"); | |
1899 | if (IS_ERR(edac->mcbb_map)) { | |
1900 | dev_err(edac->dev, "unable to get syscon regmap mcbb\n"); | |
1901 | rc = PTR_ERR(edac->mcbb_map); | |
1902 | goto out_err; | |
1903 | } | |
1904 | edac->efuse_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, | |
1905 | "regmap-efuse"); | |
1906 | if (IS_ERR(edac->efuse_map)) { | |
1907 | dev_err(edac->dev, "unable to get syscon regmap efuse\n"); | |
1908 | rc = PTR_ERR(edac->efuse_map); | |
1909 | goto out_err; | |
1910 | } | |
1911 | ||
4d67e3ce LH |
1912 | /* |
1913 | * NOTE: The register bus resource is optional for compatibility | |
1914 | * reason. | |
1915 | */ | |
1916 | edac->rb_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, | |
1917 | "regmap-rb"); | |
1918 | if (IS_ERR(edac->rb_map)) { | |
1919 | dev_warn(edac->dev, "missing syscon regmap rb\n"); | |
1920 | edac->rb_map = NULL; | |
1921 | } | |
1922 | ||
0d442930 LH |
1923 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
1924 | edac->pcp_csr = devm_ioremap_resource(&pdev->dev, res); | |
1925 | if (IS_ERR(edac->pcp_csr)) { | |
1926 | dev_err(&pdev->dev, "no PCP resource address\n"); | |
1927 | rc = PTR_ERR(edac->pcp_csr); | |
1928 | goto out_err; | |
1929 | } | |
1930 | ||
1931 | if (edac_op_state == EDAC_OPSTATE_INT) { | |
1932 | int irq; | |
1933 | int i; | |
1934 | ||
1935 | for (i = 0; i < 3; i++) { | |
1936 | irq = platform_get_irq(pdev, i); | |
1937 | if (irq < 0) { | |
1938 | dev_err(&pdev->dev, "No IRQ resource\n"); | |
1939 | rc = -EINVAL; | |
1940 | goto out_err; | |
1941 | } | |
1942 | rc = devm_request_irq(&pdev->dev, irq, | |
1943 | xgene_edac_isr, IRQF_SHARED, | |
1944 | dev_name(&pdev->dev), edac); | |
1945 | if (rc) { | |
1946 | dev_err(&pdev->dev, | |
1947 | "Could not request IRQ %d\n", irq); | |
1948 | goto out_err; | |
1949 | } | |
1950 | } | |
1951 | } | |
1952 | ||
9347473c LH |
1953 | edac->dfs = edac_debugfs_create_dir(pdev->dev.kobj.name); |
1954 | ||
0d442930 LH |
1955 | for_each_child_of_node(pdev->dev.of_node, child) { |
1956 | if (!of_device_is_available(child)) | |
1957 | continue; | |
1958 | if (of_device_is_compatible(child, "apm,xgene-edac-mc")) | |
1959 | xgene_edac_mc_add(edac, child); | |
1960 | if (of_device_is_compatible(child, "apm,xgene-edac-pmd")) | |
451bb7fb AB |
1961 | xgene_edac_pmd_add(edac, child, 1); |
1962 | if (of_device_is_compatible(child, "apm,xgene-edac-pmd-v2")) | |
1963 | xgene_edac_pmd_add(edac, child, 2); | |
9347473c LH |
1964 | if (of_device_is_compatible(child, "apm,xgene-edac-l3")) |
1965 | xgene_edac_l3_add(edac, child, 1); | |
1966 | if (of_device_is_compatible(child, "apm,xgene-edac-l3-v2")) | |
1967 | xgene_edac_l3_add(edac, child, 2); | |
f864b79b LH |
1968 | if (of_device_is_compatible(child, "apm,xgene-edac-soc")) |
1969 | xgene_edac_soc_add(edac, child, 0); | |
1970 | if (of_device_is_compatible(child, "apm,xgene-edac-soc-v1")) | |
1971 | xgene_edac_soc_add(edac, child, 1); | |
0d442930 LH |
1972 | } |
1973 | ||
1974 | return 0; | |
1975 | ||
1976 | out_err: | |
1977 | return rc; | |
1978 | } | |
1979 | ||
1980 | static int xgene_edac_remove(struct platform_device *pdev) | |
1981 | { | |
1982 | struct xgene_edac *edac = dev_get_drvdata(&pdev->dev); | |
1983 | struct xgene_edac_mc_ctx *mcu; | |
1984 | struct xgene_edac_mc_ctx *temp_mcu; | |
1985 | struct xgene_edac_pmd_ctx *pmd; | |
1986 | struct xgene_edac_pmd_ctx *temp_pmd; | |
9347473c LH |
1987 | struct xgene_edac_dev_ctx *node; |
1988 | struct xgene_edac_dev_ctx *temp_node; | |
0d442930 | 1989 | |
9347473c | 1990 | list_for_each_entry_safe(mcu, temp_mcu, &edac->mcus, next) |
0d442930 | 1991 | xgene_edac_mc_remove(mcu); |
0d442930 | 1992 | |
9347473c | 1993 | list_for_each_entry_safe(pmd, temp_pmd, &edac->pmds, next) |
0d442930 | 1994 | xgene_edac_pmd_remove(pmd); |
9347473c LH |
1995 | |
1996 | list_for_each_entry_safe(node, temp_node, &edac->l3s, next) | |
1997 | xgene_edac_l3_remove(node); | |
1998 | ||
f864b79b LH |
1999 | list_for_each_entry_safe(node, temp_node, &edac->socs, next) |
2000 | xgene_edac_soc_remove(node); | |
2001 | ||
0d442930 LH |
2002 | return 0; |
2003 | } | |
2004 | ||
2005 | static const struct of_device_id xgene_edac_of_match[] = { | |
2006 | { .compatible = "apm,xgene-edac" }, | |
2007 | {}, | |
2008 | }; | |
2009 | MODULE_DEVICE_TABLE(of, xgene_edac_of_match); | |
2010 | ||
2011 | static struct platform_driver xgene_edac_driver = { | |
2012 | .probe = xgene_edac_probe, | |
2013 | .remove = xgene_edac_remove, | |
2014 | .driver = { | |
2015 | .name = "xgene-edac", | |
0d442930 LH |
2016 | .of_match_table = xgene_edac_of_match, |
2017 | }, | |
2018 | }; | |
2019 | ||
2020 | static int __init xgene_edac_init(void) | |
2021 | { | |
2022 | int rc; | |
2023 | ||
2024 | /* Make sure error reporting method is sane */ | |
2025 | switch (edac_op_state) { | |
2026 | case EDAC_OPSTATE_POLL: | |
2027 | case EDAC_OPSTATE_INT: | |
2028 | break; | |
2029 | default: | |
2030 | edac_op_state = EDAC_OPSTATE_INT; | |
2031 | break; | |
2032 | } | |
2033 | ||
2034 | rc = platform_driver_register(&xgene_edac_driver); | |
2035 | if (rc) { | |
2036 | edac_printk(KERN_ERR, EDAC_MOD_STR, | |
2037 | "EDAC fails to register\n"); | |
2038 | goto reg_failed; | |
2039 | } | |
2040 | ||
2041 | return 0; | |
2042 | ||
2043 | reg_failed: | |
2044 | return rc; | |
2045 | } | |
2046 | module_init(xgene_edac_init); | |
2047 | ||
2048 | static void __exit xgene_edac_exit(void) | |
2049 | { | |
2050 | platform_driver_unregister(&xgene_edac_driver); | |
2051 | } | |
2052 | module_exit(xgene_edac_exit); | |
2053 | ||
2054 | MODULE_LICENSE("GPL"); | |
2055 | MODULE_AUTHOR("Feng Kan <fkan@apm.com>"); | |
2056 | MODULE_DESCRIPTION("APM X-Gene EDAC driver"); | |
2057 | module_param(edac_op_state, int, 0444); | |
2058 | MODULE_PARM_DESC(edac_op_state, | |
2059 | "EDAC error reporting state: 0=Poll, 2=Interrupt"); |