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Merge tag 'staging-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[linux/fpc-iii.git] / tools / testing / nvdimm / test / nfit.c
bloba8ee5c4d41ebb124e356ed9dc22822bf97d1e8ab
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
4 */
5 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
6 #include <linux/platform_device.h>
7 #include <linux/dma-mapping.h>
8 #include <linux/workqueue.h>
9 #include <linux/libnvdimm.h>
10 #include <linux/genalloc.h>
11 #include <linux/vmalloc.h>
12 #include <linux/device.h>
13 #include <linux/module.h>
14 #include <linux/mutex.h>
15 #include <linux/ndctl.h>
16 #include <linux/sizes.h>
17 #include <linux/list.h>
18 #include <linux/slab.h>
19 #include <nd-core.h>
20 #include <intel.h>
21 #include <nfit.h>
22 #include <nd.h>
23 #include "nfit_test.h"
24 #include "../watermark.h"
25
26 #include <asm/mcsafe_test.h>
27
28 /*
29 * Generate an NFIT table to describe the following topology:
30 *
31 * BUS0: Interleaved PMEM regions, and aliasing with BLK regions
32 *
33 * (a) (b) DIMM BLK-REGION
34 * +----------+--------------+----------+---------+
35 * +------+ | blk2.0 | pm0.0 | blk2.1 | pm1.0 | 0 region2
36 * | imc0 +--+- - - - - region0 - - - -+----------+ +
37 * +--+---+ | blk3.0 | pm0.0 | blk3.1 | pm1.0 | 1 region3
38 * | +----------+--------------v----------v v
39 * +--+---+ | |
40 * | cpu0 | region1
41 * +--+---+ | |
42 * | +-------------------------^----------^ ^
43 * +--+---+ | blk4.0 | pm1.0 | 2 region4
44 * | imc1 +--+-------------------------+----------+ +
45 * +------+ | blk5.0 | pm1.0 | 3 region5
46 * +-------------------------+----------+-+-------+
47 *
48 * +--+---+
49 * | cpu1 |
50 * +--+---+ (Hotplug DIMM)
51 * | +----------------------------------------------+
52 * +--+---+ | blk6.0/pm7.0 | 4 region6/7
53 * | imc0 +--+----------------------------------------------+
54 * +------+
55 *
56 *
57 * *) In this layout we have four dimms and two memory controllers in one
58 * socket. Each unique interface (BLK or PMEM) to DPA space
59 * is identified by a region device with a dynamically assigned id.
60 *
61 * *) The first portion of dimm0 and dimm1 are interleaved as REGION0.
62 * A single PMEM namespace "pm0.0" is created using half of the
63 * REGION0 SPA-range. REGION0 spans dimm0 and dimm1. PMEM namespace
64 * allocate from from the bottom of a region. The unallocated
65 * portion of REGION0 aliases with REGION2 and REGION3. That
66 * unallacted capacity is reclaimed as BLK namespaces ("blk2.0" and
67 * "blk3.0") starting at the base of each DIMM to offset (a) in those
68 * DIMMs. "pm0.0", "blk2.0" and "blk3.0" are free-form readable
69 * names that can be assigned to a namespace.
70 *
71 * *) In the last portion of dimm0 and dimm1 we have an interleaved
72 * SPA range, REGION1, that spans those two dimms as well as dimm2
73 * and dimm3. Some of REGION1 allocated to a PMEM namespace named
74 * "pm1.0" the rest is reclaimed in 4 BLK namespaces (for each
75 * dimm in the interleave set), "blk2.1", "blk3.1", "blk4.0", and
76 * "blk5.0".
77 *
78 * *) The portion of dimm2 and dimm3 that do not participate in the
79 * REGION1 interleaved SPA range (i.e. the DPA address below offset
80 * (b) are also included in the "blk4.0" and "blk5.0" namespaces.
81 * Note, that BLK namespaces need not be contiguous in DPA-space, and
82 * can consume aliased capacity from multiple interleave sets.
83 *
84 * BUS1: Legacy NVDIMM (single contiguous range)
85 *
86 * region2
87 * +---------------------+
88 * |---------------------|
89 * || pm2.0 ||
90 * |---------------------|
91 * +---------------------+
92 *
93 * *) A NFIT-table may describe a simple system-physical-address range
94 * with no BLK aliasing. This type of region may optionally
95 * reference an NVDIMM.
96 */
97 enum {
98 NUM_PM = 3,
99 NUM_DCR = 5,
100 NUM_HINTS = 8,
101 NUM_BDW = NUM_DCR,
102 NUM_SPA = NUM_PM + NUM_DCR + NUM_BDW,
103 NUM_MEM = NUM_DCR + NUM_BDW + 2 /* spa0 iset */
104 + 4 /* spa1 iset */ + 1 /* spa11 iset */,
105 DIMM_SIZE = SZ_32M,
106 LABEL_SIZE = SZ_128K,
107 SPA_VCD_SIZE = SZ_4M,
108 SPA0_SIZE = DIMM_SIZE,
109 SPA1_SIZE = DIMM_SIZE*2,
110 SPA2_SIZE = DIMM_SIZE,
111 BDW_SIZE = 64 << 8,
112 DCR_SIZE = 12,
113 NUM_NFITS = 2, /* permit testing multiple NFITs per system */
114 };
115
116 struct nfit_test_dcr {
117 __le64 bdw_addr;
118 __le32 bdw_status;
119 __u8 aperature[BDW_SIZE];
120 };
121
122 #define NFIT_DIMM_HANDLE(node, socket, imc, chan, dimm) \
123 (((node & 0xfff) << 16) | ((socket & 0xf) << 12) \
124 | ((imc & 0xf) << 8) | ((chan & 0xf) << 4) | (dimm & 0xf))
125
126 static u32 handle[] = {
127 [0] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 0),
128 [1] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 1),
129 [2] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 0),
130 [3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1),
131 [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0),
132 [5] = NFIT_DIMM_HANDLE(1, 0, 0, 0, 0),
133 [6] = NFIT_DIMM_HANDLE(1, 0, 0, 0, 1),
134 };
135
136 static unsigned long dimm_fail_cmd_flags[ARRAY_SIZE(handle)];
137 static int dimm_fail_cmd_code[ARRAY_SIZE(handle)];
138 struct nfit_test_sec {
139 u8 state;
140 u8 ext_state;
141 u8 old_state;
142 u8 passphrase[32];
143 u8 master_passphrase[32];
144 u64 overwrite_end_time;
145 } dimm_sec_info[NUM_DCR];
146
147 static const struct nd_intel_smart smart_def = {
148 .flags = ND_INTEL_SMART_HEALTH_VALID
149 | ND_INTEL_SMART_SPARES_VALID
150 | ND_INTEL_SMART_ALARM_VALID
151 | ND_INTEL_SMART_USED_VALID
152 | ND_INTEL_SMART_SHUTDOWN_VALID
153 | ND_INTEL_SMART_SHUTDOWN_COUNT_VALID
154 | ND_INTEL_SMART_MTEMP_VALID
155 | ND_INTEL_SMART_CTEMP_VALID,
156 .health = ND_INTEL_SMART_NON_CRITICAL_HEALTH,
157 .media_temperature = 23 * 16,
158 .ctrl_temperature = 25 * 16,
159 .pmic_temperature = 40 * 16,
160 .spares = 75,
161 .alarm_flags = ND_INTEL_SMART_SPARE_TRIP
162 | ND_INTEL_SMART_TEMP_TRIP,
163 .ait_status = 1,
164 .life_used = 5,
165 .shutdown_state = 0,
166 .shutdown_count = 42,
167 .vendor_size = 0,
168 };
169
170 struct nfit_test_fw {
171 enum intel_fw_update_state state;
172 u32 context;
173 u64 version;
174 u32 size_received;
175 u64 end_time;
176 };
177
178 struct nfit_test {
179 struct acpi_nfit_desc acpi_desc;
180 struct platform_device pdev;
181 struct list_head resources;
182 void *nfit_buf;
183 dma_addr_t nfit_dma;
184 size_t nfit_size;
185 size_t nfit_filled;
186 int dcr_idx;
187 int num_dcr;
188 int num_pm;
189 void **dimm;
190 dma_addr_t *dimm_dma;
191 void **flush;
192 dma_addr_t *flush_dma;
193 void **label;
194 dma_addr_t *label_dma;
195 void **spa_set;
196 dma_addr_t *spa_set_dma;
197 struct nfit_test_dcr **dcr;
198 dma_addr_t *dcr_dma;
199 int (*alloc)(struct nfit_test *t);
200 void (*setup)(struct nfit_test *t);
201 int setup_hotplug;
202 union acpi_object **_fit;
203 dma_addr_t _fit_dma;
204 struct ars_state {
205 struct nd_cmd_ars_status *ars_status;
206 unsigned long deadline;
207 spinlock_t lock;
208 } ars_state;
209 struct device *dimm_dev[ARRAY_SIZE(handle)];
210 struct nd_intel_smart *smart;
211 struct nd_intel_smart_threshold *smart_threshold;
212 struct badrange badrange;
213 struct work_struct work;
214 struct nfit_test_fw *fw;
215 };
216
217 static struct workqueue_struct *nfit_wq;
218
219 static struct gen_pool *nfit_pool;
220
221 static const char zero_key[NVDIMM_PASSPHRASE_LEN];
222
223 static struct nfit_test *to_nfit_test(struct device *dev)
224 {
225 struct platform_device *pdev = to_platform_device(dev);
226
227 return container_of(pdev, struct nfit_test, pdev);
228 }
229
230 static int nd_intel_test_get_fw_info(struct nfit_test *t,
231 struct nd_intel_fw_info *nd_cmd, unsigned int buf_len,
232 int idx)
233 {
234 struct device *dev = &t->pdev.dev;
235 struct nfit_test_fw *fw = &t->fw[idx];
236
237 dev_dbg(dev, "%s(nfit_test: %p nd_cmd: %p, buf_len: %u, idx: %d\n",
238 __func__, t, nd_cmd, buf_len, idx);
239
240 if (buf_len < sizeof(*nd_cmd))
241 return -EINVAL;
242
243 nd_cmd->status = 0;
244 nd_cmd->storage_size = INTEL_FW_STORAGE_SIZE;
245 nd_cmd->max_send_len = INTEL_FW_MAX_SEND_LEN;
246 nd_cmd->query_interval = INTEL_FW_QUERY_INTERVAL;
247 nd_cmd->max_query_time = INTEL_FW_QUERY_MAX_TIME;
248 nd_cmd->update_cap = 0;
249 nd_cmd->fis_version = INTEL_FW_FIS_VERSION;
250 nd_cmd->run_version = 0;
251 nd_cmd->updated_version = fw->version;
252
253 return 0;
254 }
255
256 static int nd_intel_test_start_update(struct nfit_test *t,
257 struct nd_intel_fw_start *nd_cmd, unsigned int buf_len,
258 int idx)
259 {
260 struct device *dev = &t->pdev.dev;
261 struct nfit_test_fw *fw = &t->fw[idx];
262
263 dev_dbg(dev, "%s(nfit_test: %p nd_cmd: %p buf_len: %u idx: %d)\n",
264 __func__, t, nd_cmd, buf_len, idx);
265
266 if (buf_len < sizeof(*nd_cmd))
267 return -EINVAL;
268
269 if (fw->state != FW_STATE_NEW) {
270 /* extended status, FW update in progress */
271 nd_cmd->status = 0x10007;
272 return 0;
273 }
274
275 fw->state = FW_STATE_IN_PROGRESS;
276 fw->context++;
277 fw->size_received = 0;
278 nd_cmd->status = 0;
279 nd_cmd->context = fw->context;
280
281 dev_dbg(dev, "%s: context issued: %#x\n", __func__, nd_cmd->context);
282
283 return 0;
284 }
285
286 static int nd_intel_test_send_data(struct nfit_test *t,
287 struct nd_intel_fw_send_data *nd_cmd, unsigned int buf_len,
288 int idx)
289 {
290 struct device *dev = &t->pdev.dev;
291 struct nfit_test_fw *fw = &t->fw[idx];
292 u32 *status = (u32 *)&nd_cmd->data[nd_cmd->length];
293
294 dev_dbg(dev, "%s(nfit_test: %p nd_cmd: %p buf_len: %u idx: %d)\n",
295 __func__, t, nd_cmd, buf_len, idx);
296
297 if (buf_len < sizeof(*nd_cmd))
298 return -EINVAL;
299
300
301 dev_dbg(dev, "%s: cmd->status: %#x\n", __func__, *status);
302 dev_dbg(dev, "%s: cmd->data[0]: %#x\n", __func__, nd_cmd->data[0]);
303 dev_dbg(dev, "%s: cmd->data[%u]: %#x\n", __func__, nd_cmd->length-1,
304 nd_cmd->data[nd_cmd->length-1]);
305
306 if (fw->state != FW_STATE_IN_PROGRESS) {
307 dev_dbg(dev, "%s: not in IN_PROGRESS state\n", __func__);
308 *status = 0x5;
309 return 0;
310 }
311
312 if (nd_cmd->context != fw->context) {
313 dev_dbg(dev, "%s: incorrect context: in: %#x correct: %#x\n",
314 __func__, nd_cmd->context, fw->context);
315 *status = 0x10007;
316 return 0;
317 }
318
319 /*
320 * check offset + len > size of fw storage
321 * check length is > max send length
322 */
323 if (nd_cmd->offset + nd_cmd->length > INTEL_FW_STORAGE_SIZE ||
324 nd_cmd->length > INTEL_FW_MAX_SEND_LEN) {
325 *status = 0x3;
326 dev_dbg(dev, "%s: buffer boundary violation\n", __func__);
327 return 0;
328 }
329
330 fw->size_received += nd_cmd->length;
331 dev_dbg(dev, "%s: copying %u bytes, %u bytes so far\n",
332 __func__, nd_cmd->length, fw->size_received);
333 *status = 0;
334 return 0;
335 }
336
337 static int nd_intel_test_finish_fw(struct nfit_test *t,
338 struct nd_intel_fw_finish_update *nd_cmd,
339 unsigned int buf_len, int idx)
340 {
341 struct device *dev = &t->pdev.dev;
342 struct nfit_test_fw *fw = &t->fw[idx];
343
344 dev_dbg(dev, "%s(nfit_test: %p nd_cmd: %p buf_len: %u idx: %d)\n",
345 __func__, t, nd_cmd, buf_len, idx);
346
347 if (fw->state == FW_STATE_UPDATED) {
348 /* update already done, need cold boot */
349 nd_cmd->status = 0x20007;
350 return 0;
351 }
352
353 dev_dbg(dev, "%s: context: %#x ctrl_flags: %#x\n",
354 __func__, nd_cmd->context, nd_cmd->ctrl_flags);
355
356 switch (nd_cmd->ctrl_flags) {
357 case 0: /* finish */
358 if (nd_cmd->context != fw->context) {
359 dev_dbg(dev, "%s: incorrect context: in: %#x correct: %#x\n",
360 __func__, nd_cmd->context,
361 fw->context);
362 nd_cmd->status = 0x10007;
363 return 0;
364 }
365 nd_cmd->status = 0;
366 fw->state = FW_STATE_VERIFY;
367 /* set 1 second of time for firmware "update" */
368 fw->end_time = jiffies + HZ;
369 break;
370
371 case 1: /* abort */
372 fw->size_received = 0;
373 /* successfully aborted status */
374 nd_cmd->status = 0x40007;
375 fw->state = FW_STATE_NEW;
376 dev_dbg(dev, "%s: abort successful\n", __func__);
377 break;
378
379 default: /* bad control flag */
380 dev_warn(dev, "%s: unknown control flag: %#x\n",
381 __func__, nd_cmd->ctrl_flags);
382 return -EINVAL;
383 }
384
385 return 0;
386 }
387
388 static int nd_intel_test_finish_query(struct nfit_test *t,
389 struct nd_intel_fw_finish_query *nd_cmd,
390 unsigned int buf_len, int idx)
391 {
392 struct device *dev = &t->pdev.dev;
393 struct nfit_test_fw *fw = &t->fw[idx];
394
395 dev_dbg(dev, "%s(nfit_test: %p nd_cmd: %p buf_len: %u idx: %d)\n",
396 __func__, t, nd_cmd, buf_len, idx);
397
398 if (buf_len < sizeof(*nd_cmd))
399 return -EINVAL;
400
401 if (nd_cmd->context != fw->context) {
402 dev_dbg(dev, "%s: incorrect context: in: %#x correct: %#x\n",
403 __func__, nd_cmd->context, fw->context);
404 nd_cmd->status = 0x10007;
405 return 0;
406 }
407
408 dev_dbg(dev, "%s context: %#x\n", __func__, nd_cmd->context);
409
410 switch (fw->state) {
411 case FW_STATE_NEW:
412 nd_cmd->updated_fw_rev = 0;
413 nd_cmd->status = 0;
414 dev_dbg(dev, "%s: new state\n", __func__);
415 break;
416
417 case FW_STATE_IN_PROGRESS:
418 /* sequencing error */
419 nd_cmd->status = 0x40007;
420 nd_cmd->updated_fw_rev = 0;
421 dev_dbg(dev, "%s: sequence error\n", __func__);
422 break;
423
424 case FW_STATE_VERIFY:
425 if (time_is_after_jiffies64(fw->end_time)) {
426 nd_cmd->updated_fw_rev = 0;
427 nd_cmd->status = 0x20007;
428 dev_dbg(dev, "%s: still verifying\n", __func__);
429 break;
430 }
431 dev_dbg(dev, "%s: transition out verify\n", __func__);
432 fw->state = FW_STATE_UPDATED;
433 /* fall through */
434 case FW_STATE_UPDATED:
435 nd_cmd->status = 0;
436 /* bogus test version */
437 fw->version = nd_cmd->updated_fw_rev =
438 INTEL_FW_FAKE_VERSION;
439 dev_dbg(dev, "%s: updated\n", __func__);
440 break;
441
442 default: /* we should never get here */
443 return -EINVAL;
444 }
445
446 return 0;
447 }
448
449 static int nfit_test_cmd_get_config_size(struct nd_cmd_get_config_size *nd_cmd,
450 unsigned int buf_len)
451 {
452 if (buf_len < sizeof(*nd_cmd))
453 return -EINVAL;
454
455 nd_cmd->status = 0;
456 nd_cmd->config_size = LABEL_SIZE;
457 nd_cmd->max_xfer = SZ_4K;
458
459 return 0;
460 }
461
462 static int nfit_test_cmd_get_config_data(struct nd_cmd_get_config_data_hdr
463 *nd_cmd, unsigned int buf_len, void *label)
464 {
465 unsigned int len, offset = nd_cmd->in_offset;
466 int rc;
467
468 if (buf_len < sizeof(*nd_cmd))
469 return -EINVAL;
470 if (offset >= LABEL_SIZE)
471 return -EINVAL;
472 if (nd_cmd->in_length + sizeof(*nd_cmd) > buf_len)
473 return -EINVAL;
474
475 nd_cmd->status = 0;
476 len = min(nd_cmd->in_length, LABEL_SIZE - offset);
477 memcpy(nd_cmd->out_buf, label + offset, len);
478 rc = buf_len - sizeof(*nd_cmd) - len;
479
480 return rc;
481 }
482
483 static int nfit_test_cmd_set_config_data(struct nd_cmd_set_config_hdr *nd_cmd,
484 unsigned int buf_len, void *label)
485 {
486 unsigned int len, offset = nd_cmd->in_offset;
487 u32 *status;
488 int rc;
489
490 if (buf_len < sizeof(*nd_cmd))
491 return -EINVAL;
492 if (offset >= LABEL_SIZE)
493 return -EINVAL;
494 if (nd_cmd->in_length + sizeof(*nd_cmd) + 4 > buf_len)
495 return -EINVAL;
496
497 status = (void *)nd_cmd + nd_cmd->in_length + sizeof(*nd_cmd);
498 *status = 0;
499 len = min(nd_cmd->in_length, LABEL_SIZE - offset);
500 memcpy(label + offset, nd_cmd->in_buf, len);
501 rc = buf_len - sizeof(*nd_cmd) - (len + 4);
502
503 return rc;
504 }
505
506 #define NFIT_TEST_CLEAR_ERR_UNIT 256
507
508 static int nfit_test_cmd_ars_cap(struct nd_cmd_ars_cap *nd_cmd,
509 unsigned int buf_len)
510 {
511 int ars_recs;
512
513 if (buf_len < sizeof(*nd_cmd))
514 return -EINVAL;
515
516 /* for testing, only store up to n records that fit within 4k */
517 ars_recs = SZ_4K / sizeof(struct nd_ars_record);
518
519 nd_cmd->max_ars_out = sizeof(struct nd_cmd_ars_status)
520 + ars_recs * sizeof(struct nd_ars_record);
521 nd_cmd->status = (ND_ARS_PERSISTENT | ND_ARS_VOLATILE) << 16;
522 nd_cmd->clear_err_unit = NFIT_TEST_CLEAR_ERR_UNIT;
523
524 return 0;
525 }
526
527 static void post_ars_status(struct ars_state *ars_state,
528 struct badrange *badrange, u64 addr, u64 len)
529 {
530 struct nd_cmd_ars_status *ars_status;
531 struct nd_ars_record *ars_record;
532 struct badrange_entry *be;
533 u64 end = addr + len - 1;
534 int i = 0;
535
536 ars_state->deadline = jiffies + 1*HZ;
537 ars_status = ars_state->ars_status;
538 ars_status->status = 0;
539 ars_status->address = addr;
540 ars_status->length = len;
541 ars_status->type = ND_ARS_PERSISTENT;
542
543 spin_lock(&badrange->lock);
544 list_for_each_entry(be, &badrange->list, list) {
545 u64 be_end = be->start + be->length - 1;
546 u64 rstart, rend;
547
548 /* skip entries outside the range */
549 if (be_end < addr || be->start > end)
550 continue;
551
552 rstart = (be->start < addr) ? addr : be->start;
553 rend = (be_end < end) ? be_end : end;
554 ars_record = &ars_status->records[i];
555 ars_record->handle = 0;
556 ars_record->err_address = rstart;
557 ars_record->length = rend - rstart + 1;
558 i++;
559 }
560 spin_unlock(&badrange->lock);
561 ars_status->num_records = i;
562 ars_status->out_length = sizeof(struct nd_cmd_ars_status)
563 + i * sizeof(struct nd_ars_record);
564 }
565
566 static int nfit_test_cmd_ars_start(struct nfit_test *t,
567 struct ars_state *ars_state,
568 struct nd_cmd_ars_start *ars_start, unsigned int buf_len,
569 int *cmd_rc)
570 {
571 if (buf_len < sizeof(*ars_start))
572 return -EINVAL;
573
574 spin_lock(&ars_state->lock);
575 if (time_before(jiffies, ars_state->deadline)) {
576 ars_start->status = NFIT_ARS_START_BUSY;
577 *cmd_rc = -EBUSY;
578 } else {
579 ars_start->status = 0;
580 ars_start->scrub_time = 1;
581 post_ars_status(ars_state, &t->badrange, ars_start->address,
582 ars_start->length);
583 *cmd_rc = 0;
584 }
585 spin_unlock(&ars_state->lock);
586
587 return 0;
588 }
589
590 static int nfit_test_cmd_ars_status(struct ars_state *ars_state,
591 struct nd_cmd_ars_status *ars_status, unsigned int buf_len,
592 int *cmd_rc)
593 {
594 if (buf_len < ars_state->ars_status->out_length)
595 return -EINVAL;
596
597 spin_lock(&ars_state->lock);
598 if (time_before(jiffies, ars_state->deadline)) {
599 memset(ars_status, 0, buf_len);
600 ars_status->status = NFIT_ARS_STATUS_BUSY;
601 ars_status->out_length = sizeof(*ars_status);
602 *cmd_rc = -EBUSY;
603 } else {
604 memcpy(ars_status, ars_state->ars_status,
605 ars_state->ars_status->out_length);
606 *cmd_rc = 0;
607 }
608 spin_unlock(&ars_state->lock);
609 return 0;
610 }
611
612 static int nfit_test_cmd_clear_error(struct nfit_test *t,
613 struct nd_cmd_clear_error *clear_err,
614 unsigned int buf_len, int *cmd_rc)
615 {
616 const u64 mask = NFIT_TEST_CLEAR_ERR_UNIT - 1;
617 if (buf_len < sizeof(*clear_err))
618 return -EINVAL;
619
620 if ((clear_err->address & mask) || (clear_err->length & mask))
621 return -EINVAL;
622
623 badrange_forget(&t->badrange, clear_err->address, clear_err->length);
624 clear_err->status = 0;
625 clear_err->cleared = clear_err->length;
626 *cmd_rc = 0;
627 return 0;
628 }
629
630 struct region_search_spa {
631 u64 addr;
632 struct nd_region *region;
633 };
634
635 static int is_region_device(struct device *dev)
636 {
637 return !strncmp(dev->kobj.name, "region", 6);
638 }
639
640 static int nfit_test_search_region_spa(struct device *dev, void *data)
641 {
642 struct region_search_spa *ctx = data;
643 struct nd_region *nd_region;
644 resource_size_t ndr_end;
645
646 if (!is_region_device(dev))
647 return 0;
648
649 nd_region = to_nd_region(dev);
650 ndr_end = nd_region->ndr_start + nd_region->ndr_size;
651
652 if (ctx->addr >= nd_region->ndr_start && ctx->addr < ndr_end) {
653 ctx->region = nd_region;
654 return 1;
655 }
656
657 return 0;
658 }
659
660 static int nfit_test_search_spa(struct nvdimm_bus *bus,
661 struct nd_cmd_translate_spa *spa)
662 {
663 int ret;
664 struct nd_region *nd_region = NULL;
665 struct nvdimm *nvdimm = NULL;
666 struct nd_mapping *nd_mapping = NULL;
667 struct region_search_spa ctx = {
668 .addr = spa->spa,
669 .region = NULL,
670 };
671 u64 dpa;
672
673 ret = device_for_each_child(&bus->dev, &ctx,
674 nfit_test_search_region_spa);
675
676 if (!ret)
677 return -ENODEV;
678
679 nd_region = ctx.region;
680
681 dpa = ctx.addr - nd_region->ndr_start;
682
683 /*
684 * last dimm is selected for test
685 */
686 nd_mapping = &nd_region->mapping[nd_region->ndr_mappings - 1];
687 nvdimm = nd_mapping->nvdimm;
688
689 spa->devices[0].nfit_device_handle = handle[nvdimm->id];
690 spa->num_nvdimms = 1;
691 spa->devices[0].dpa = dpa;
692
693 return 0;
694 }
695
696 static int nfit_test_cmd_translate_spa(struct nvdimm_bus *bus,
697 struct nd_cmd_translate_spa *spa, unsigned int buf_len)
698 {
699 if (buf_len < spa->translate_length)
700 return -EINVAL;
701
702 if (nfit_test_search_spa(bus, spa) < 0 || !spa->num_nvdimms)
703 spa->status = 2;
704
705 return 0;
706 }
707
708 static int nfit_test_cmd_smart(struct nd_intel_smart *smart, unsigned int buf_len,
709 struct nd_intel_smart *smart_data)
710 {
711 if (buf_len < sizeof(*smart))
712 return -EINVAL;
713 memcpy(smart, smart_data, sizeof(*smart));
714 return 0;
715 }
716
717 static int nfit_test_cmd_smart_threshold(
718 struct nd_intel_smart_threshold *out,
719 unsigned int buf_len,
720 struct nd_intel_smart_threshold *smart_t)
721 {
722 if (buf_len < sizeof(*smart_t))
723 return -EINVAL;
724 memcpy(out, smart_t, sizeof(*smart_t));
725 return 0;
726 }
727
728 static void smart_notify(struct device *bus_dev,
729 struct device *dimm_dev, struct nd_intel_smart *smart,
730 struct nd_intel_smart_threshold *thresh)
731 {
732 dev_dbg(dimm_dev, "%s: alarm: %#x spares: %d (%d) mtemp: %d (%d) ctemp: %d (%d)\n",
733 __func__, thresh->alarm_control, thresh->spares,
734 smart->spares, thresh->media_temperature,
735 smart->media_temperature, thresh->ctrl_temperature,
736 smart->ctrl_temperature);
737 if (((thresh->alarm_control & ND_INTEL_SMART_SPARE_TRIP)
738 && smart->spares
739 <= thresh->spares)
740 || ((thresh->alarm_control & ND_INTEL_SMART_TEMP_TRIP)
741 && smart->media_temperature
742 >= thresh->media_temperature)
743 || ((thresh->alarm_control & ND_INTEL_SMART_CTEMP_TRIP)
744 && smart->ctrl_temperature
745 >= thresh->ctrl_temperature)
746 || (smart->health != ND_INTEL_SMART_NON_CRITICAL_HEALTH)
747 || (smart->shutdown_state != 0)) {
748 device_lock(bus_dev);
749 __acpi_nvdimm_notify(dimm_dev, 0x81);
750 device_unlock(bus_dev);
751 }
752 }
753
754 static int nfit_test_cmd_smart_set_threshold(
755 struct nd_intel_smart_set_threshold *in,
756 unsigned int buf_len,
757 struct nd_intel_smart_threshold *thresh,
758 struct nd_intel_smart *smart,
759 struct device *bus_dev, struct device *dimm_dev)
760 {
761 unsigned int size;
762
763 size = sizeof(*in) - 4;
764 if (buf_len < size)
765 return -EINVAL;
766 memcpy(thresh->data, in, size);
767 in->status = 0;
768 smart_notify(bus_dev, dimm_dev, smart, thresh);
769
770 return 0;
771 }
772
773 static int nfit_test_cmd_smart_inject(
774 struct nd_intel_smart_inject *inj,
775 unsigned int buf_len,
776 struct nd_intel_smart_threshold *thresh,
777 struct nd_intel_smart *smart,
778 struct device *bus_dev, struct device *dimm_dev)
779 {
780 if (buf_len != sizeof(*inj))
781 return -EINVAL;
782
783 if (inj->flags & ND_INTEL_SMART_INJECT_MTEMP) {
784 if (inj->mtemp_enable)
785 smart->media_temperature = inj->media_temperature;
786 else
787 smart->media_temperature = smart_def.media_temperature;
788 }
789 if (inj->flags & ND_INTEL_SMART_INJECT_SPARE) {
790 if (inj->spare_enable)
791 smart->spares = inj->spares;
792 else
793 smart->spares = smart_def.spares;
794 }
795 if (inj->flags & ND_INTEL_SMART_INJECT_FATAL) {
796 if (inj->fatal_enable)
797 smart->health = ND_INTEL_SMART_FATAL_HEALTH;
798 else
799 smart->health = ND_INTEL_SMART_NON_CRITICAL_HEALTH;
800 }
801 if (inj->flags & ND_INTEL_SMART_INJECT_SHUTDOWN) {
802 if (inj->unsafe_shutdown_enable) {
803 smart->shutdown_state = 1;
804 smart->shutdown_count++;
805 } else
806 smart->shutdown_state = 0;
807 }
808 inj->status = 0;
809 smart_notify(bus_dev, dimm_dev, smart, thresh);
810
811 return 0;
812 }
813
814 static void uc_error_notify(struct work_struct *work)
815 {
816 struct nfit_test *t = container_of(work, typeof(*t), work);
817
818 __acpi_nfit_notify(&t->pdev.dev, t, NFIT_NOTIFY_UC_MEMORY_ERROR);
819 }
820
821 static int nfit_test_cmd_ars_error_inject(struct nfit_test *t,
822 struct nd_cmd_ars_err_inj *err_inj, unsigned int buf_len)
823 {
824 int rc;
825
826 if (buf_len != sizeof(*err_inj)) {
827 rc = -EINVAL;
828 goto err;
829 }
830
831 if (err_inj->err_inj_spa_range_length <= 0) {
832 rc = -EINVAL;
833 goto err;
834 }
835
836 rc = badrange_add(&t->badrange, err_inj->err_inj_spa_range_base,
837 err_inj->err_inj_spa_range_length);
838 if (rc < 0)
839 goto err;
840
841 if (err_inj->err_inj_options & (1 << ND_ARS_ERR_INJ_OPT_NOTIFY))
842 queue_work(nfit_wq, &t->work);
843
844 err_inj->status = 0;
845 return 0;
846
847 err:
848 err_inj->status = NFIT_ARS_INJECT_INVALID;
849 return rc;
850 }
851
852 static int nfit_test_cmd_ars_inject_clear(struct nfit_test *t,
853 struct nd_cmd_ars_err_inj_clr *err_clr, unsigned int buf_len)
854 {
855 int rc;
856
857 if (buf_len != sizeof(*err_clr)) {
858 rc = -EINVAL;
859 goto err;
860 }
861
862 if (err_clr->err_inj_clr_spa_range_length <= 0) {
863 rc = -EINVAL;
864 goto err;
865 }
866
867 badrange_forget(&t->badrange, err_clr->err_inj_clr_spa_range_base,
868 err_clr->err_inj_clr_spa_range_length);
869
870 err_clr->status = 0;
871 return 0;
872
873 err:
874 err_clr->status = NFIT_ARS_INJECT_INVALID;
875 return rc;
876 }
877
878 static int nfit_test_cmd_ars_inject_status(struct nfit_test *t,
879 struct nd_cmd_ars_err_inj_stat *err_stat,
880 unsigned int buf_len)
881 {
882 struct badrange_entry *be;
883 int max = SZ_4K / sizeof(struct nd_error_stat_query_record);
884 int i = 0;
885
886 err_stat->status = 0;
887 spin_lock(&t->badrange.lock);
888 list_for_each_entry(be, &t->badrange.list, list) {
889 err_stat->record[i].err_inj_stat_spa_range_base = be->start;
890 err_stat->record[i].err_inj_stat_spa_range_length = be->length;
891 i++;
892 if (i > max)
893 break;
894 }
895 spin_unlock(&t->badrange.lock);
896 err_stat->inj_err_rec_count = i;
897
898 return 0;
899 }
900
901 static int nd_intel_test_cmd_set_lss_status(struct nfit_test *t,
902 struct nd_intel_lss *nd_cmd, unsigned int buf_len)
903 {
904 struct device *dev = &t->pdev.dev;
905
906 if (buf_len < sizeof(*nd_cmd))
907 return -EINVAL;
908
909 switch (nd_cmd->enable) {
910 case 0:
911 nd_cmd->status = 0;
912 dev_dbg(dev, "%s: Latch System Shutdown Status disabled\n",
913 __func__);
914 break;
915 case 1:
916 nd_cmd->status = 0;
917 dev_dbg(dev, "%s: Latch System Shutdown Status enabled\n",
918 __func__);
919 break;
920 default:
921 dev_warn(dev, "Unknown enable value: %#x\n", nd_cmd->enable);
922 nd_cmd->status = 0x3;
923 break;
924 }
925
926
927 return 0;
928 }
929
930 static int override_return_code(int dimm, unsigned int func, int rc)
931 {
932 if ((1 << func) & dimm_fail_cmd_flags[dimm]) {
933 if (dimm_fail_cmd_code[dimm])
934 return dimm_fail_cmd_code[dimm];
935 return -EIO;
936 }
937 return rc;
938 }
939
940 static int nd_intel_test_cmd_security_status(struct nfit_test *t,
941 struct nd_intel_get_security_state *nd_cmd,
942 unsigned int buf_len, int dimm)
943 {
944 struct device *dev = &t->pdev.dev;
945 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
946
947 nd_cmd->status = 0;
948 nd_cmd->state = sec->state;
949 nd_cmd->extended_state = sec->ext_state;
950 dev_dbg(dev, "security state (%#x) returned\n", nd_cmd->state);
951
952 return 0;
953 }
954
955 static int nd_intel_test_cmd_unlock_unit(struct nfit_test *t,
956 struct nd_intel_unlock_unit *nd_cmd,
957 unsigned int buf_len, int dimm)
958 {
959 struct device *dev = &t->pdev.dev;
960 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
961
962 if (!(sec->state & ND_INTEL_SEC_STATE_LOCKED) ||
963 (sec->state & ND_INTEL_SEC_STATE_FROZEN)) {
964 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
965 dev_dbg(dev, "unlock unit: invalid state: %#x\n",
966 sec->state);
967 } else if (memcmp(nd_cmd->passphrase, sec->passphrase,
968 ND_INTEL_PASSPHRASE_SIZE) != 0) {
969 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
970 dev_dbg(dev, "unlock unit: invalid passphrase\n");
971 } else {
972 nd_cmd->status = 0;
973 sec->state = ND_INTEL_SEC_STATE_ENABLED;
974 dev_dbg(dev, "Unit unlocked\n");
975 }
976
977 dev_dbg(dev, "unlocking status returned: %#x\n", nd_cmd->status);
978 return 0;
979 }
980
981 static int nd_intel_test_cmd_set_pass(struct nfit_test *t,
982 struct nd_intel_set_passphrase *nd_cmd,
983 unsigned int buf_len, int dimm)
984 {
985 struct device *dev = &t->pdev.dev;
986 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
987
988 if (sec->state & ND_INTEL_SEC_STATE_FROZEN) {
989 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
990 dev_dbg(dev, "set passphrase: wrong security state\n");
991 } else if (memcmp(nd_cmd->old_pass, sec->passphrase,
992 ND_INTEL_PASSPHRASE_SIZE) != 0) {
993 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
994 dev_dbg(dev, "set passphrase: wrong passphrase\n");
995 } else {
996 memcpy(sec->passphrase, nd_cmd->new_pass,
997 ND_INTEL_PASSPHRASE_SIZE);
998 sec->state |= ND_INTEL_SEC_STATE_ENABLED;
999 nd_cmd->status = 0;
1000 dev_dbg(dev, "passphrase updated\n");
1001 }
1002
1003 return 0;
1004 }
1005
1006 static int nd_intel_test_cmd_freeze_lock(struct nfit_test *t,
1007 struct nd_intel_freeze_lock *nd_cmd,
1008 unsigned int buf_len, int dimm)
1009 {
1010 struct device *dev = &t->pdev.dev;
1011 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1012
1013 if (!(sec->state & ND_INTEL_SEC_STATE_ENABLED)) {
1014 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
1015 dev_dbg(dev, "freeze lock: wrong security state\n");
1016 } else {
1017 sec->state |= ND_INTEL_SEC_STATE_FROZEN;
1018 nd_cmd->status = 0;
1019 dev_dbg(dev, "security frozen\n");
1020 }
1021
1022 return 0;
1023 }
1024
1025 static int nd_intel_test_cmd_disable_pass(struct nfit_test *t,
1026 struct nd_intel_disable_passphrase *nd_cmd,
1027 unsigned int buf_len, int dimm)
1028 {
1029 struct device *dev = &t->pdev.dev;
1030 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1031
1032 if (!(sec->state & ND_INTEL_SEC_STATE_ENABLED) ||
1033 (sec->state & ND_INTEL_SEC_STATE_FROZEN)) {
1034 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
1035 dev_dbg(dev, "disable passphrase: wrong security state\n");
1036 } else if (memcmp(nd_cmd->passphrase, sec->passphrase,
1037 ND_INTEL_PASSPHRASE_SIZE) != 0) {
1038 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
1039 dev_dbg(dev, "disable passphrase: wrong passphrase\n");
1040 } else {
1041 memset(sec->passphrase, 0, ND_INTEL_PASSPHRASE_SIZE);
1042 sec->state = 0;
1043 dev_dbg(dev, "disable passphrase: done\n");
1044 }
1045
1046 return 0;
1047 }
1048
1049 static int nd_intel_test_cmd_secure_erase(struct nfit_test *t,
1050 struct nd_intel_secure_erase *nd_cmd,
1051 unsigned int buf_len, int dimm)
1052 {
1053 struct device *dev = &t->pdev.dev;
1054 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1055
1056 if (sec->state & ND_INTEL_SEC_STATE_FROZEN) {
1057 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
1058 dev_dbg(dev, "secure erase: wrong security state\n");
1059 } else if (memcmp(nd_cmd->passphrase, sec->passphrase,
1060 ND_INTEL_PASSPHRASE_SIZE) != 0) {
1061 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
1062 dev_dbg(dev, "secure erase: wrong passphrase\n");
1063 } else {
1064 if (!(sec->state & ND_INTEL_SEC_STATE_ENABLED)
1065 && (memcmp(nd_cmd->passphrase, zero_key,
1066 ND_INTEL_PASSPHRASE_SIZE) != 0)) {
1067 dev_dbg(dev, "invalid zero key\n");
1068 return 0;
1069 }
1070 memset(sec->passphrase, 0, ND_INTEL_PASSPHRASE_SIZE);
1071 memset(sec->master_passphrase, 0, ND_INTEL_PASSPHRASE_SIZE);
1072 sec->state = 0;
1073 sec->ext_state = ND_INTEL_SEC_ESTATE_ENABLED;
1074 dev_dbg(dev, "secure erase: done\n");
1075 }
1076
1077 return 0;
1078 }
1079
1080 static int nd_intel_test_cmd_overwrite(struct nfit_test *t,
1081 struct nd_intel_overwrite *nd_cmd,
1082 unsigned int buf_len, int dimm)
1083 {
1084 struct device *dev = &t->pdev.dev;
1085 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1086
1087 if ((sec->state & ND_INTEL_SEC_STATE_ENABLED) &&
1088 memcmp(nd_cmd->passphrase, sec->passphrase,
1089 ND_INTEL_PASSPHRASE_SIZE) != 0) {
1090 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
1091 dev_dbg(dev, "overwrite: wrong passphrase\n");
1092 return 0;
1093 }
1094
1095 sec->old_state = sec->state;
1096 sec->state = ND_INTEL_SEC_STATE_OVERWRITE;
1097 dev_dbg(dev, "overwrite progressing.\n");
1098 sec->overwrite_end_time = get_jiffies_64() + 5 * HZ;
1099
1100 return 0;
1101 }
1102
1103 static int nd_intel_test_cmd_query_overwrite(struct nfit_test *t,
1104 struct nd_intel_query_overwrite *nd_cmd,
1105 unsigned int buf_len, int dimm)
1106 {
1107 struct device *dev = &t->pdev.dev;
1108 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1109
1110 if (!(sec->state & ND_INTEL_SEC_STATE_OVERWRITE)) {
1111 nd_cmd->status = ND_INTEL_STATUS_OQUERY_SEQUENCE_ERR;
1112 return 0;
1113 }
1114
1115 if (time_is_before_jiffies64(sec->overwrite_end_time)) {
1116 sec->overwrite_end_time = 0;
1117 sec->state = sec->old_state;
1118 sec->old_state = 0;
1119 sec->ext_state = ND_INTEL_SEC_ESTATE_ENABLED;
1120 dev_dbg(dev, "overwrite is complete\n");
1121 } else
1122 nd_cmd->status = ND_INTEL_STATUS_OQUERY_INPROGRESS;
1123 return 0;
1124 }
1125
1126 static int nd_intel_test_cmd_master_set_pass(struct nfit_test *t,
1127 struct nd_intel_set_master_passphrase *nd_cmd,
1128 unsigned int buf_len, int dimm)
1129 {
1130 struct device *dev = &t->pdev.dev;
1131 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1132
1133 if (!(sec->ext_state & ND_INTEL_SEC_ESTATE_ENABLED)) {
1134 nd_cmd->status = ND_INTEL_STATUS_NOT_SUPPORTED;
1135 dev_dbg(dev, "master set passphrase: in wrong state\n");
1136 } else if (sec->ext_state & ND_INTEL_SEC_ESTATE_PLIMIT) {
1137 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
1138 dev_dbg(dev, "master set passphrase: in wrong security state\n");
1139 } else if (memcmp(nd_cmd->old_pass, sec->master_passphrase,
1140 ND_INTEL_PASSPHRASE_SIZE) != 0) {
1141 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
1142 dev_dbg(dev, "master set passphrase: wrong passphrase\n");
1143 } else {
1144 memcpy(sec->master_passphrase, nd_cmd->new_pass,
1145 ND_INTEL_PASSPHRASE_SIZE);
1146 sec->ext_state = ND_INTEL_SEC_ESTATE_ENABLED;
1147 dev_dbg(dev, "master passphrase: updated\n");
1148 }
1149
1150 return 0;
1151 }
1152
1153 static int nd_intel_test_cmd_master_secure_erase(struct nfit_test *t,
1154 struct nd_intel_master_secure_erase *nd_cmd,
1155 unsigned int buf_len, int dimm)
1156 {
1157 struct device *dev = &t->pdev.dev;
1158 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1159
1160 if (!(sec->ext_state & ND_INTEL_SEC_ESTATE_ENABLED)) {
1161 nd_cmd->status = ND_INTEL_STATUS_NOT_SUPPORTED;
1162 dev_dbg(dev, "master secure erase: in wrong state\n");
1163 } else if (sec->ext_state & ND_INTEL_SEC_ESTATE_PLIMIT) {
1164 nd_cmd->status = ND_INTEL_STATUS_INVALID_STATE;
1165 dev_dbg(dev, "master secure erase: in wrong security state\n");
1166 } else if (memcmp(nd_cmd->passphrase, sec->master_passphrase,
1167 ND_INTEL_PASSPHRASE_SIZE) != 0) {
1168 nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
1169 dev_dbg(dev, "master secure erase: wrong passphrase\n");
1170 } else {
1171 /* we do not erase master state passphrase ever */
1172 sec->ext_state = ND_INTEL_SEC_ESTATE_ENABLED;
1173 memset(sec->passphrase, 0, ND_INTEL_PASSPHRASE_SIZE);
1174 sec->state = 0;
1175 dev_dbg(dev, "master secure erase: done\n");
1176 }
1177
1178 return 0;
1179 }
1180
1181
1182 static int get_dimm(struct nfit_mem *nfit_mem, unsigned int func)
1183 {
1184 int i;
1185
1186 /* lookup per-dimm data */
1187 for (i = 0; i < ARRAY_SIZE(handle); i++)
1188 if (__to_nfit_memdev(nfit_mem)->device_handle == handle[i])
1189 break;
1190 if (i >= ARRAY_SIZE(handle))
1191 return -ENXIO;
1192 return i;
1193 }
1194
1195 static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc,
1196 struct nvdimm *nvdimm, unsigned int cmd, void *buf,
1197 unsigned int buf_len, int *cmd_rc)
1198 {
1199 struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
1200 struct nfit_test *t = container_of(acpi_desc, typeof(*t), acpi_desc);
1201 unsigned int func = cmd;
1202 int i, rc = 0, __cmd_rc;
1203
1204 if (!cmd_rc)
1205 cmd_rc = &__cmd_rc;
1206 *cmd_rc = 0;
1207
1208 if (nvdimm) {
1209 struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
1210 unsigned long cmd_mask = nvdimm_cmd_mask(nvdimm);
1211
1212 if (!nfit_mem)
1213 return -ENOTTY;
1214
1215 if (cmd == ND_CMD_CALL) {
1216 struct nd_cmd_pkg *call_pkg = buf;
1217
1218 buf_len = call_pkg->nd_size_in + call_pkg->nd_size_out;
1219 buf = (void *) call_pkg->nd_payload;
1220 func = call_pkg->nd_command;
1221 if (call_pkg->nd_family != nfit_mem->family)
1222 return -ENOTTY;
1223
1224 i = get_dimm(nfit_mem, func);
1225 if (i < 0)
1226 return i;
1227
1228 switch (func) {
1229 case NVDIMM_INTEL_GET_SECURITY_STATE:
1230 rc = nd_intel_test_cmd_security_status(t,
1231 buf, buf_len, i);
1232 break;
1233 case NVDIMM_INTEL_UNLOCK_UNIT:
1234 rc = nd_intel_test_cmd_unlock_unit(t,
1235 buf, buf_len, i);
1236 break;
1237 case NVDIMM_INTEL_SET_PASSPHRASE:
1238 rc = nd_intel_test_cmd_set_pass(t,
1239 buf, buf_len, i);
1240 break;
1241 case NVDIMM_INTEL_DISABLE_PASSPHRASE:
1242 rc = nd_intel_test_cmd_disable_pass(t,
1243 buf, buf_len, i);
1244 break;
1245 case NVDIMM_INTEL_FREEZE_LOCK:
1246 rc = nd_intel_test_cmd_freeze_lock(t,
1247 buf, buf_len, i);
1248 break;
1249 case NVDIMM_INTEL_SECURE_ERASE:
1250 rc = nd_intel_test_cmd_secure_erase(t,
1251 buf, buf_len, i);
1252 break;
1253 case NVDIMM_INTEL_OVERWRITE:
1254 rc = nd_intel_test_cmd_overwrite(t,
1255 buf, buf_len, i - t->dcr_idx);
1256 break;
1257 case NVDIMM_INTEL_QUERY_OVERWRITE:
1258 rc = nd_intel_test_cmd_query_overwrite(t,
1259 buf, buf_len, i - t->dcr_idx);
1260 break;
1261 case NVDIMM_INTEL_SET_MASTER_PASSPHRASE:
1262 rc = nd_intel_test_cmd_master_set_pass(t,
1263 buf, buf_len, i);
1264 break;
1265 case NVDIMM_INTEL_MASTER_SECURE_ERASE:
1266 rc = nd_intel_test_cmd_master_secure_erase(t,
1267 buf, buf_len, i);
1268 break;
1269 case ND_INTEL_ENABLE_LSS_STATUS:
1270 rc = nd_intel_test_cmd_set_lss_status(t,
1271 buf, buf_len);
1272 break;
1273 case ND_INTEL_FW_GET_INFO:
1274 rc = nd_intel_test_get_fw_info(t, buf,
1275 buf_len, i - t->dcr_idx);
1276 break;
1277 case ND_INTEL_FW_START_UPDATE:
1278 rc = nd_intel_test_start_update(t, buf,
1279 buf_len, i - t->dcr_idx);
1280 break;
1281 case ND_INTEL_FW_SEND_DATA:
1282 rc = nd_intel_test_send_data(t, buf,
1283 buf_len, i - t->dcr_idx);
1284 break;
1285 case ND_INTEL_FW_FINISH_UPDATE:
1286 rc = nd_intel_test_finish_fw(t, buf,
1287 buf_len, i - t->dcr_idx);
1288 break;
1289 case ND_INTEL_FW_FINISH_QUERY:
1290 rc = nd_intel_test_finish_query(t, buf,
1291 buf_len, i - t->dcr_idx);
1292 break;
1293 case ND_INTEL_SMART:
1294 rc = nfit_test_cmd_smart(buf, buf_len,
1295 &t->smart[i - t->dcr_idx]);
1296 break;
1297 case ND_INTEL_SMART_THRESHOLD:
1298 rc = nfit_test_cmd_smart_threshold(buf,
1299 buf_len,
1300 &t->smart_threshold[i -
1301 t->dcr_idx]);
1302 break;
1303 case ND_INTEL_SMART_SET_THRESHOLD:
1304 rc = nfit_test_cmd_smart_set_threshold(buf,
1305 buf_len,
1306 &t->smart_threshold[i -
1307 t->dcr_idx],
1308 &t->smart[i - t->dcr_idx],
1309 &t->pdev.dev, t->dimm_dev[i]);
1310 break;
1311 case ND_INTEL_SMART_INJECT:
1312 rc = nfit_test_cmd_smart_inject(buf,
1313 buf_len,
1314 &t->smart_threshold[i -
1315 t->dcr_idx],
1316 &t->smart[i - t->dcr_idx],
1317 &t->pdev.dev, t->dimm_dev[i]);
1318 break;
1319 default:
1320 return -ENOTTY;
1321 }
1322 return override_return_code(i, func, rc);
1323 }
1324
1325 if (!test_bit(cmd, &cmd_mask)
1326 || !test_bit(func, &nfit_mem->dsm_mask))
1327 return -ENOTTY;
1328
1329 i = get_dimm(nfit_mem, func);
1330 if (i < 0)
1331 return i;
1332
1333 switch (func) {
1334 case ND_CMD_GET_CONFIG_SIZE:
1335 rc = nfit_test_cmd_get_config_size(buf, buf_len);
1336 break;
1337 case ND_CMD_GET_CONFIG_DATA:
1338 rc = nfit_test_cmd_get_config_data(buf, buf_len,
1339 t->label[i - t->dcr_idx]);
1340 break;
1341 case ND_CMD_SET_CONFIG_DATA:
1342 rc = nfit_test_cmd_set_config_data(buf, buf_len,
1343 t->label[i - t->dcr_idx]);
1344 break;
1345 default:
1346 return -ENOTTY;
1347 }
1348 return override_return_code(i, func, rc);
1349 } else {
1350 struct ars_state *ars_state = &t->ars_state;
1351 struct nd_cmd_pkg *call_pkg = buf;
1352
1353 if (!nd_desc)
1354 return -ENOTTY;
1355
1356 if (cmd == ND_CMD_CALL) {
1357 func = call_pkg->nd_command;
1358
1359 buf_len = call_pkg->nd_size_in + call_pkg->nd_size_out;
1360 buf = (void *) call_pkg->nd_payload;
1361
1362 switch (func) {
1363 case NFIT_CMD_TRANSLATE_SPA:
1364 rc = nfit_test_cmd_translate_spa(
1365 acpi_desc->nvdimm_bus, buf, buf_len);
1366 return rc;
1367 case NFIT_CMD_ARS_INJECT_SET:
1368 rc = nfit_test_cmd_ars_error_inject(t, buf,
1369 buf_len);
1370 return rc;
1371 case NFIT_CMD_ARS_INJECT_CLEAR:
1372 rc = nfit_test_cmd_ars_inject_clear(t, buf,
1373 buf_len);
1374 return rc;
1375 case NFIT_CMD_ARS_INJECT_GET:
1376 rc = nfit_test_cmd_ars_inject_status(t, buf,
1377 buf_len);
1378 return rc;
1379 default:
1380 return -ENOTTY;
1381 }
1382 }
1383
1384 if (!nd_desc || !test_bit(cmd, &nd_desc->cmd_mask))
1385 return -ENOTTY;
1386
1387 switch (func) {
1388 case ND_CMD_ARS_CAP:
1389 rc = nfit_test_cmd_ars_cap(buf, buf_len);
1390 break;
1391 case ND_CMD_ARS_START:
1392 rc = nfit_test_cmd_ars_start(t, ars_state, buf,
1393 buf_len, cmd_rc);
1394 break;
1395 case ND_CMD_ARS_STATUS:
1396 rc = nfit_test_cmd_ars_status(ars_state, buf, buf_len,
1397 cmd_rc);
1398 break;
1399 case ND_CMD_CLEAR_ERROR:
1400 rc = nfit_test_cmd_clear_error(t, buf, buf_len, cmd_rc);
1401 break;
1402 default:
1403 return -ENOTTY;
1404 }
1405 }
1406
1407 return rc;
1408 }
1409
1410 static DEFINE_SPINLOCK(nfit_test_lock);
1411 static struct nfit_test *instances[NUM_NFITS];
1412
1413 static void release_nfit_res(void *data)
1414 {
1415 struct nfit_test_resource *nfit_res = data;
1416
1417 spin_lock(&nfit_test_lock);
1418 list_del(&nfit_res->list);
1419 spin_unlock(&nfit_test_lock);
1420
1421 if (resource_size(&nfit_res->res) >= DIMM_SIZE)
1422 gen_pool_free(nfit_pool, nfit_res->res.start,
1423 resource_size(&nfit_res->res));
1424 vfree(nfit_res->buf);
1425 kfree(nfit_res);
1426 }
1427
1428 static void *__test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma,
1429 void *buf)
1430 {
1431 struct device *dev = &t->pdev.dev;
1432 struct nfit_test_resource *nfit_res = kzalloc(sizeof(*nfit_res),
1433 GFP_KERNEL);
1434 int rc;
1435
1436 if (!buf || !nfit_res || !*dma)
1437 goto err;
1438 rc = devm_add_action(dev, release_nfit_res, nfit_res);
1439 if (rc)
1440 goto err;
1441 INIT_LIST_HEAD(&nfit_res->list);
1442 memset(buf, 0, size);
1443 nfit_res->dev = dev;
1444 nfit_res->buf = buf;
1445 nfit_res->res.start = *dma;
1446 nfit_res->res.end = *dma + size - 1;
1447 nfit_res->res.name = "NFIT";
1448 spin_lock_init(&nfit_res->lock);
1449 INIT_LIST_HEAD(&nfit_res->requests);
1450 spin_lock(&nfit_test_lock);
1451 list_add(&nfit_res->list, &t->resources);
1452 spin_unlock(&nfit_test_lock);
1453
1454 return nfit_res->buf;
1455 err:
1456 if (*dma && size >= DIMM_SIZE)
1457 gen_pool_free(nfit_pool, *dma, size);
1458 if (buf)
1459 vfree(buf);
1460 kfree(nfit_res);
1461 return NULL;
1462 }
1463
1464 static void *test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma)
1465 {
1466 struct genpool_data_align data = {
1467 .align = SZ_128M,
1468 };
1469 void *buf = vmalloc(size);
1470
1471 if (size >= DIMM_SIZE)
1472 *dma = gen_pool_alloc_algo(nfit_pool, size,
1473 gen_pool_first_fit_align, &data);
1474 else
1475 *dma = (unsigned long) buf;
1476 return __test_alloc(t, size, dma, buf);
1477 }
1478
1479 static struct nfit_test_resource *nfit_test_lookup(resource_size_t addr)
1480 {
1481 int i;
1482
1483 for (i = 0; i < ARRAY_SIZE(instances); i++) {
1484 struct nfit_test_resource *n, *nfit_res = NULL;
1485 struct nfit_test *t = instances[i];
1486
1487 if (!t)
1488 continue;
1489 spin_lock(&nfit_test_lock);
1490 list_for_each_entry(n, &t->resources, list) {
1491 if (addr >= n->res.start && (addr < n->res.start
1492 + resource_size(&n->res))) {
1493 nfit_res = n;
1494 break;
1495 } else if (addr >= (unsigned long) n->buf
1496 && (addr < (unsigned long) n->buf
1497 + resource_size(&n->res))) {
1498 nfit_res = n;
1499 break;
1500 }
1501 }
1502 spin_unlock(&nfit_test_lock);
1503 if (nfit_res)
1504 return nfit_res;
1505 }
1506
1507 return NULL;
1508 }
1509
1510 static int ars_state_init(struct device *dev, struct ars_state *ars_state)
1511 {
1512 /* for testing, only store up to n records that fit within 4k */
1513 ars_state->ars_status = devm_kzalloc(dev,
1514 sizeof(struct nd_cmd_ars_status) + SZ_4K, GFP_KERNEL);
1515 if (!ars_state->ars_status)
1516 return -ENOMEM;
1517 spin_lock_init(&ars_state->lock);
1518 return 0;
1519 }
1520
1521 static void put_dimms(void *data)
1522 {
1523 struct nfit_test *t = data;
1524 int i;
1525
1526 for (i = 0; i < t->num_dcr; i++)
1527 if (t->dimm_dev[i])
1528 device_unregister(t->dimm_dev[i]);
1529 }
1530
1531 static struct class *nfit_test_dimm;
1532
1533 static int dimm_name_to_id(struct device *dev)
1534 {
1535 int dimm;
1536
1537 if (sscanf(dev_name(dev), "test_dimm%d", &dimm) != 1)
1538 return -ENXIO;
1539 return dimm;
1540 }
1541
1542 static ssize_t handle_show(struct device *dev, struct device_attribute *attr,
1543 char *buf)
1544 {
1545 int dimm = dimm_name_to_id(dev);
1546
1547 if (dimm < 0)
1548 return dimm;
1549
1550 return sprintf(buf, "%#x\n", handle[dimm]);
1551 }
1552 DEVICE_ATTR_RO(handle);
1553
1554 static ssize_t fail_cmd_show(struct device *dev, struct device_attribute *attr,
1555 char *buf)
1556 {
1557 int dimm = dimm_name_to_id(dev);
1558
1559 if (dimm < 0)
1560 return dimm;
1561
1562 return sprintf(buf, "%#lx\n", dimm_fail_cmd_flags[dimm]);
1563 }
1564
1565 static ssize_t fail_cmd_store(struct device *dev, struct device_attribute *attr,
1566 const char *buf, size_t size)
1567 {
1568 int dimm = dimm_name_to_id(dev);
1569 unsigned long val;
1570 ssize_t rc;
1571
1572 if (dimm < 0)
1573 return dimm;
1574
1575 rc = kstrtol(buf, 0, &val);
1576 if (rc)
1577 return rc;
1578
1579 dimm_fail_cmd_flags[dimm] = val;
1580 return size;
1581 }
1582 static DEVICE_ATTR_RW(fail_cmd);
1583
1584 static ssize_t fail_cmd_code_show(struct device *dev, struct device_attribute *attr,
1585 char *buf)
1586 {
1587 int dimm = dimm_name_to_id(dev);
1588
1589 if (dimm < 0)
1590 return dimm;
1591
1592 return sprintf(buf, "%d\n", dimm_fail_cmd_code[dimm]);
1593 }
1594
1595 static ssize_t fail_cmd_code_store(struct device *dev, struct device_attribute *attr,
1596 const char *buf, size_t size)
1597 {
1598 int dimm = dimm_name_to_id(dev);
1599 unsigned long val;
1600 ssize_t rc;
1601
1602 if (dimm < 0)
1603 return dimm;
1604
1605 rc = kstrtol(buf, 0, &val);
1606 if (rc)
1607 return rc;
1608
1609 dimm_fail_cmd_code[dimm] = val;
1610 return size;
1611 }
1612 static DEVICE_ATTR_RW(fail_cmd_code);
1613
1614 static ssize_t lock_dimm_store(struct device *dev,
1615 struct device_attribute *attr, const char *buf, size_t size)
1616 {
1617 int dimm = dimm_name_to_id(dev);
1618 struct nfit_test_sec *sec = &dimm_sec_info[dimm];
1619
1620 sec->state = ND_INTEL_SEC_STATE_ENABLED | ND_INTEL_SEC_STATE_LOCKED;
1621 return size;
1622 }
1623 static DEVICE_ATTR_WO(lock_dimm);
1624
1625 static struct attribute *nfit_test_dimm_attributes[] = {
1626 &dev_attr_fail_cmd.attr,
1627 &dev_attr_fail_cmd_code.attr,
1628 &dev_attr_handle.attr,
1629 &dev_attr_lock_dimm.attr,
1630 NULL,
1631 };
1632
1633 static struct attribute_group nfit_test_dimm_attribute_group = {
1634 .attrs = nfit_test_dimm_attributes,
1635 };
1636
1637 static const struct attribute_group *nfit_test_dimm_attribute_groups[] = {
1638 &nfit_test_dimm_attribute_group,
1639 NULL,
1640 };
1641
1642 static int nfit_test_dimm_init(struct nfit_test *t)
1643 {
1644 int i;
1645
1646 if (devm_add_action_or_reset(&t->pdev.dev, put_dimms, t))
1647 return -ENOMEM;
1648 for (i = 0; i < t->num_dcr; i++) {
1649 t->dimm_dev[i] = device_create_with_groups(nfit_test_dimm,
1650 &t->pdev.dev, 0, NULL,
1651 nfit_test_dimm_attribute_groups,
1652 "test_dimm%d", i + t->dcr_idx);
1653 if (!t->dimm_dev[i])
1654 return -ENOMEM;
1655 }
1656 return 0;
1657 }
1658
1659 static void security_init(struct nfit_test *t)
1660 {
1661 int i;
1662
1663 for (i = 0; i < t->num_dcr; i++) {
1664 struct nfit_test_sec *sec = &dimm_sec_info[i];
1665
1666 sec->ext_state = ND_INTEL_SEC_ESTATE_ENABLED;
1667 }
1668 }
1669
1670 static void smart_init(struct nfit_test *t)
1671 {
1672 int i;
1673 const struct nd_intel_smart_threshold smart_t_data = {
1674 .alarm_control = ND_INTEL_SMART_SPARE_TRIP
1675 | ND_INTEL_SMART_TEMP_TRIP,
1676 .media_temperature = 40 * 16,
1677 .ctrl_temperature = 30 * 16,
1678 .spares = 5,
1679 };
1680
1681 for (i = 0; i < t->num_dcr; i++) {
1682 memcpy(&t->smart[i], &smart_def, sizeof(smart_def));
1683 memcpy(&t->smart_threshold[i], &smart_t_data,
1684 sizeof(smart_t_data));
1685 }
1686 }
1687
1688 static int nfit_test0_alloc(struct nfit_test *t)
1689 {
1690 size_t nfit_size = sizeof(struct acpi_nfit_system_address) * NUM_SPA
1691 + sizeof(struct acpi_nfit_memory_map) * NUM_MEM
1692 + sizeof(struct acpi_nfit_control_region) * NUM_DCR
1693 + offsetof(struct acpi_nfit_control_region,
1694 window_size) * NUM_DCR
1695 + sizeof(struct acpi_nfit_data_region) * NUM_BDW
1696 + (sizeof(struct acpi_nfit_flush_address)
1697 + sizeof(u64) * NUM_HINTS) * NUM_DCR
1698 + sizeof(struct acpi_nfit_capabilities);
1699 int i;
1700
1701 t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma);
1702 if (!t->nfit_buf)
1703 return -ENOMEM;
1704 t->nfit_size = nfit_size;
1705
1706 t->spa_set[0] = test_alloc(t, SPA0_SIZE, &t->spa_set_dma[0]);
1707 if (!t->spa_set[0])
1708 return -ENOMEM;
1709
1710 t->spa_set[1] = test_alloc(t, SPA1_SIZE, &t->spa_set_dma[1]);
1711 if (!t->spa_set[1])
1712 return -ENOMEM;
1713
1714 t->spa_set[2] = test_alloc(t, SPA0_SIZE, &t->spa_set_dma[2]);
1715 if (!t->spa_set[2])
1716 return -ENOMEM;
1717
1718 for (i = 0; i < t->num_dcr; i++) {
1719 t->dimm[i] = test_alloc(t, DIMM_SIZE, &t->dimm_dma[i]);
1720 if (!t->dimm[i])
1721 return -ENOMEM;
1722
1723 t->label[i] = test_alloc(t, LABEL_SIZE, &t->label_dma[i]);
1724 if (!t->label[i])
1725 return -ENOMEM;
1726 sprintf(t->label[i], "label%d", i);
1727
1728 t->flush[i] = test_alloc(t, max(PAGE_SIZE,
1729 sizeof(u64) * NUM_HINTS),
1730 &t->flush_dma[i]);
1731 if (!t->flush[i])
1732 return -ENOMEM;
1733 }
1734
1735 for (i = 0; i < t->num_dcr; i++) {
1736 t->dcr[i] = test_alloc(t, LABEL_SIZE, &t->dcr_dma[i]);
1737 if (!t->dcr[i])
1738 return -ENOMEM;
1739 }
1740
1741 t->_fit = test_alloc(t, sizeof(union acpi_object **), &t->_fit_dma);
1742 if (!t->_fit)
1743 return -ENOMEM;
1744
1745 if (nfit_test_dimm_init(t))
1746 return -ENOMEM;
1747 smart_init(t);
1748 security_init(t);
1749 return ars_state_init(&t->pdev.dev, &t->ars_state);
1750 }
1751
1752 static int nfit_test1_alloc(struct nfit_test *t)
1753 {
1754 size_t nfit_size = sizeof(struct acpi_nfit_system_address) * 2
1755 + sizeof(struct acpi_nfit_memory_map) * 2
1756 + offsetof(struct acpi_nfit_control_region, window_size) * 2;
1757 int i;
1758
1759 t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma);
1760 if (!t->nfit_buf)
1761 return -ENOMEM;
1762 t->nfit_size = nfit_size;
1763
1764 t->spa_set[0] = test_alloc(t, SPA2_SIZE, &t->spa_set_dma[0]);
1765 if (!t->spa_set[0])
1766 return -ENOMEM;
1767
1768 for (i = 0; i < t->num_dcr; i++) {
1769 t->label[i] = test_alloc(t, LABEL_SIZE, &t->label_dma[i]);
1770 if (!t->label[i])
1771 return -ENOMEM;
1772 sprintf(t->label[i], "label%d", i);
1773 }
1774
1775 t->spa_set[1] = test_alloc(t, SPA_VCD_SIZE, &t->spa_set_dma[1]);
1776 if (!t->spa_set[1])
1777 return -ENOMEM;
1778
1779 if (nfit_test_dimm_init(t))
1780 return -ENOMEM;
1781 smart_init(t);
1782 return ars_state_init(&t->pdev.dev, &t->ars_state);
1783 }
1784
1785 static void dcr_common_init(struct acpi_nfit_control_region *dcr)
1786 {
1787 dcr->vendor_id = 0xabcd;
1788 dcr->device_id = 0;
1789 dcr->revision_id = 1;
1790 dcr->valid_fields = 1;
1791 dcr->manufacturing_location = 0xa;
1792 dcr->manufacturing_date = cpu_to_be16(2016);
1793 }
1794
1795 static void nfit_test0_setup(struct nfit_test *t)
1796 {
1797 const int flush_hint_size = sizeof(struct acpi_nfit_flush_address)
1798 + (sizeof(u64) * NUM_HINTS);
1799 struct acpi_nfit_desc *acpi_desc;
1800 struct acpi_nfit_memory_map *memdev;
1801 void *nfit_buf = t->nfit_buf;
1802 struct acpi_nfit_system_address *spa;
1803 struct acpi_nfit_control_region *dcr;
1804 struct acpi_nfit_data_region *bdw;
1805 struct acpi_nfit_flush_address *flush;
1806 struct acpi_nfit_capabilities *pcap;
1807 unsigned int offset = 0, i;
1808
1809 /*
1810 * spa0 (interleave first half of dimm0 and dimm1, note storage
1811 * does not actually alias the related block-data-window
1812 * regions)
1813 */
1814 spa = nfit_buf;
1815 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1816 spa->header.length = sizeof(*spa);
1817 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
1818 spa->range_index = 0+1;
1819 spa->address = t->spa_set_dma[0];
1820 spa->length = SPA0_SIZE;
1821 offset += spa->header.length;
1822
1823 /*
1824 * spa1 (interleave last half of the 4 DIMMS, note storage
1825 * does not actually alias the related block-data-window
1826 * regions)
1827 */
1828 spa = nfit_buf + offset;
1829 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1830 spa->header.length = sizeof(*spa);
1831 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
1832 spa->range_index = 1+1;
1833 spa->address = t->spa_set_dma[1];
1834 spa->length = SPA1_SIZE;
1835 offset += spa->header.length;
1836
1837 /* spa2 (dcr0) dimm0 */
1838 spa = nfit_buf + offset;
1839 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1840 spa->header.length = sizeof(*spa);
1841 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
1842 spa->range_index = 2+1;
1843 spa->address = t->dcr_dma[0];
1844 spa->length = DCR_SIZE;
1845 offset += spa->header.length;
1846
1847 /* spa3 (dcr1) dimm1 */
1848 spa = nfit_buf + offset;
1849 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1850 spa->header.length = sizeof(*spa);
1851 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
1852 spa->range_index = 3+1;
1853 spa->address = t->dcr_dma[1];
1854 spa->length = DCR_SIZE;
1855 offset += spa->header.length;
1856
1857 /* spa4 (dcr2) dimm2 */
1858 spa = nfit_buf + offset;
1859 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1860 spa->header.length = sizeof(*spa);
1861 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
1862 spa->range_index = 4+1;
1863 spa->address = t->dcr_dma[2];
1864 spa->length = DCR_SIZE;
1865 offset += spa->header.length;
1866
1867 /* spa5 (dcr3) dimm3 */
1868 spa = nfit_buf + offset;
1869 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1870 spa->header.length = sizeof(*spa);
1871 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
1872 spa->range_index = 5+1;
1873 spa->address = t->dcr_dma[3];
1874 spa->length = DCR_SIZE;
1875 offset += spa->header.length;
1876
1877 /* spa6 (bdw for dcr0) dimm0 */
1878 spa = nfit_buf + offset;
1879 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1880 spa->header.length = sizeof(*spa);
1881 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
1882 spa->range_index = 6+1;
1883 spa->address = t->dimm_dma[0];
1884 spa->length = DIMM_SIZE;
1885 offset += spa->header.length;
1886
1887 /* spa7 (bdw for dcr1) dimm1 */
1888 spa = nfit_buf + offset;
1889 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1890 spa->header.length = sizeof(*spa);
1891 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
1892 spa->range_index = 7+1;
1893 spa->address = t->dimm_dma[1];
1894 spa->length = DIMM_SIZE;
1895 offset += spa->header.length;
1896
1897 /* spa8 (bdw for dcr2) dimm2 */
1898 spa = nfit_buf + offset;
1899 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1900 spa->header.length = sizeof(*spa);
1901 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
1902 spa->range_index = 8+1;
1903 spa->address = t->dimm_dma[2];
1904 spa->length = DIMM_SIZE;
1905 offset += spa->header.length;
1906
1907 /* spa9 (bdw for dcr3) dimm3 */
1908 spa = nfit_buf + offset;
1909 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
1910 spa->header.length = sizeof(*spa);
1911 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
1912 spa->range_index = 9+1;
1913 spa->address = t->dimm_dma[3];
1914 spa->length = DIMM_SIZE;
1915 offset += spa->header.length;
1916
1917 /* mem-region0 (spa0, dimm0) */
1918 memdev = nfit_buf + offset;
1919 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
1920 memdev->header.length = sizeof(*memdev);
1921 memdev->device_handle = handle[0];
1922 memdev->physical_id = 0;
1923 memdev->region_id = 0;
1924 memdev->range_index = 0+1;
1925 memdev->region_index = 4+1;
1926 memdev->region_size = SPA0_SIZE/2;
1927 memdev->region_offset = 1;
1928 memdev->address = 0;
1929 memdev->interleave_index = 0;
1930 memdev->interleave_ways = 2;
1931 offset += memdev->header.length;
1932
1933 /* mem-region1 (spa0, dimm1) */
1934 memdev = nfit_buf + offset;
1935 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
1936 memdev->header.length = sizeof(*memdev);
1937 memdev->device_handle = handle[1];
1938 memdev->physical_id = 1;
1939 memdev->region_id = 0;
1940 memdev->range_index = 0+1;
1941 memdev->region_index = 5+1;
1942 memdev->region_size = SPA0_SIZE/2;
1943 memdev->region_offset = (1 << 8);
1944 memdev->address = 0;
1945 memdev->interleave_index = 0;
1946 memdev->interleave_ways = 2;
1947 memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED;
1948 offset += memdev->header.length;
1949
1950 /* mem-region2 (spa1, dimm0) */
1951 memdev = nfit_buf + offset;
1952 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
1953 memdev->header.length = sizeof(*memdev);
1954 memdev->device_handle = handle[0];
1955 memdev->physical_id = 0;
1956 memdev->region_id = 1;
1957 memdev->range_index = 1+1;
1958 memdev->region_index = 4+1;
1959 memdev->region_size = SPA1_SIZE/4;
1960 memdev->region_offset = (1 << 16);
1961 memdev->address = SPA0_SIZE/2;
1962 memdev->interleave_index = 0;
1963 memdev->interleave_ways = 4;
1964 memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED;
1965 offset += memdev->header.length;
1966
1967 /* mem-region3 (spa1, dimm1) */
1968 memdev = nfit_buf + offset;
1969 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
1970 memdev->header.length = sizeof(*memdev);
1971 memdev->device_handle = handle[1];
1972 memdev->physical_id = 1;
1973 memdev->region_id = 1;
1974 memdev->range_index = 1+1;
1975 memdev->region_index = 5+1;
1976 memdev->region_size = SPA1_SIZE/4;
1977 memdev->region_offset = (1 << 24);
1978 memdev->address = SPA0_SIZE/2;
1979 memdev->interleave_index = 0;
1980 memdev->interleave_ways = 4;
1981 offset += memdev->header.length;
1982
1983 /* mem-region4 (spa1, dimm2) */
1984 memdev = nfit_buf + offset;
1985 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
1986 memdev->header.length = sizeof(*memdev);
1987 memdev->device_handle = handle[2];
1988 memdev->physical_id = 2;
1989 memdev->region_id = 0;
1990 memdev->range_index = 1+1;
1991 memdev->region_index = 6+1;
1992 memdev->region_size = SPA1_SIZE/4;
1993 memdev->region_offset = (1ULL << 32);
1994 memdev->address = SPA0_SIZE/2;
1995 memdev->interleave_index = 0;
1996 memdev->interleave_ways = 4;
1997 memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED;
1998 offset += memdev->header.length;
1999
2000 /* mem-region5 (spa1, dimm3) */
2001 memdev = nfit_buf + offset;
2002 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2003 memdev->header.length = sizeof(*memdev);
2004 memdev->device_handle = handle[3];
2005 memdev->physical_id = 3;
2006 memdev->region_id = 0;
2007 memdev->range_index = 1+1;
2008 memdev->region_index = 7+1;
2009 memdev->region_size = SPA1_SIZE/4;
2010 memdev->region_offset = (1ULL << 40);
2011 memdev->address = SPA0_SIZE/2;
2012 memdev->interleave_index = 0;
2013 memdev->interleave_ways = 4;
2014 offset += memdev->header.length;
2015
2016 /* mem-region6 (spa/dcr0, dimm0) */
2017 memdev = nfit_buf + offset;
2018 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2019 memdev->header.length = sizeof(*memdev);
2020 memdev->device_handle = handle[0];
2021 memdev->physical_id = 0;
2022 memdev->region_id = 0;
2023 memdev->range_index = 2+1;
2024 memdev->region_index = 0+1;
2025 memdev->region_size = 0;
2026 memdev->region_offset = 0;
2027 memdev->address = 0;
2028 memdev->interleave_index = 0;
2029 memdev->interleave_ways = 1;
2030 offset += memdev->header.length;
2031
2032 /* mem-region7 (spa/dcr1, dimm1) */
2033 memdev = nfit_buf + offset;
2034 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2035 memdev->header.length = sizeof(*memdev);
2036 memdev->device_handle = handle[1];
2037 memdev->physical_id = 1;
2038 memdev->region_id = 0;
2039 memdev->range_index = 3+1;
2040 memdev->region_index = 1+1;
2041 memdev->region_size = 0;
2042 memdev->region_offset = 0;
2043 memdev->address = 0;
2044 memdev->interleave_index = 0;
2045 memdev->interleave_ways = 1;
2046 offset += memdev->header.length;
2047
2048 /* mem-region8 (spa/dcr2, dimm2) */
2049 memdev = nfit_buf + offset;
2050 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2051 memdev->header.length = sizeof(*memdev);
2052 memdev->device_handle = handle[2];
2053 memdev->physical_id = 2;
2054 memdev->region_id = 0;
2055 memdev->range_index = 4+1;
2056 memdev->region_index = 2+1;
2057 memdev->region_size = 0;
2058 memdev->region_offset = 0;
2059 memdev->address = 0;
2060 memdev->interleave_index = 0;
2061 memdev->interleave_ways = 1;
2062 offset += memdev->header.length;
2063
2064 /* mem-region9 (spa/dcr3, dimm3) */
2065 memdev = nfit_buf + offset;
2066 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2067 memdev->header.length = sizeof(*memdev);
2068 memdev->device_handle = handle[3];
2069 memdev->physical_id = 3;
2070 memdev->region_id = 0;
2071 memdev->range_index = 5+1;
2072 memdev->region_index = 3+1;
2073 memdev->region_size = 0;
2074 memdev->region_offset = 0;
2075 memdev->address = 0;
2076 memdev->interleave_index = 0;
2077 memdev->interleave_ways = 1;
2078 offset += memdev->header.length;
2079
2080 /* mem-region10 (spa/bdw0, dimm0) */
2081 memdev = nfit_buf + offset;
2082 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2083 memdev->header.length = sizeof(*memdev);
2084 memdev->device_handle = handle[0];
2085 memdev->physical_id = 0;
2086 memdev->region_id = 0;
2087 memdev->range_index = 6+1;
2088 memdev->region_index = 0+1;
2089 memdev->region_size = 0;
2090 memdev->region_offset = 0;
2091 memdev->address = 0;
2092 memdev->interleave_index = 0;
2093 memdev->interleave_ways = 1;
2094 offset += memdev->header.length;
2095
2096 /* mem-region11 (spa/bdw1, dimm1) */
2097 memdev = nfit_buf + offset;
2098 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2099 memdev->header.length = sizeof(*memdev);
2100 memdev->device_handle = handle[1];
2101 memdev->physical_id = 1;
2102 memdev->region_id = 0;
2103 memdev->range_index = 7+1;
2104 memdev->region_index = 1+1;
2105 memdev->region_size = 0;
2106 memdev->region_offset = 0;
2107 memdev->address = 0;
2108 memdev->interleave_index = 0;
2109 memdev->interleave_ways = 1;
2110 offset += memdev->header.length;
2111
2112 /* mem-region12 (spa/bdw2, dimm2) */
2113 memdev = nfit_buf + offset;
2114 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2115 memdev->header.length = sizeof(*memdev);
2116 memdev->device_handle = handle[2];
2117 memdev->physical_id = 2;
2118 memdev->region_id = 0;
2119 memdev->range_index = 8+1;
2120 memdev->region_index = 2+1;
2121 memdev->region_size = 0;
2122 memdev->region_offset = 0;
2123 memdev->address = 0;
2124 memdev->interleave_index = 0;
2125 memdev->interleave_ways = 1;
2126 offset += memdev->header.length;
2127
2128 /* mem-region13 (spa/dcr3, dimm3) */
2129 memdev = nfit_buf + offset;
2130 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2131 memdev->header.length = sizeof(*memdev);
2132 memdev->device_handle = handle[3];
2133 memdev->physical_id = 3;
2134 memdev->region_id = 0;
2135 memdev->range_index = 9+1;
2136 memdev->region_index = 3+1;
2137 memdev->region_size = 0;
2138 memdev->region_offset = 0;
2139 memdev->address = 0;
2140 memdev->interleave_index = 0;
2141 memdev->interleave_ways = 1;
2142 memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED;
2143 offset += memdev->header.length;
2144
2145 /* dcr-descriptor0: blk */
2146 dcr = nfit_buf + offset;
2147 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2148 dcr->header.length = sizeof(*dcr);
2149 dcr->region_index = 0+1;
2150 dcr_common_init(dcr);
2151 dcr->serial_number = ~handle[0];
2152 dcr->code = NFIT_FIC_BLK;
2153 dcr->windows = 1;
2154 dcr->window_size = DCR_SIZE;
2155 dcr->command_offset = 0;
2156 dcr->command_size = 8;
2157 dcr->status_offset = 8;
2158 dcr->status_size = 4;
2159 offset += dcr->header.length;
2160
2161 /* dcr-descriptor1: blk */
2162 dcr = nfit_buf + offset;
2163 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2164 dcr->header.length = sizeof(*dcr);
2165 dcr->region_index = 1+1;
2166 dcr_common_init(dcr);
2167 dcr->serial_number = ~handle[1];
2168 dcr->code = NFIT_FIC_BLK;
2169 dcr->windows = 1;
2170 dcr->window_size = DCR_SIZE;
2171 dcr->command_offset = 0;
2172 dcr->command_size = 8;
2173 dcr->status_offset = 8;
2174 dcr->status_size = 4;
2175 offset += dcr->header.length;
2176
2177 /* dcr-descriptor2: blk */
2178 dcr = nfit_buf + offset;
2179 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2180 dcr->header.length = sizeof(*dcr);
2181 dcr->region_index = 2+1;
2182 dcr_common_init(dcr);
2183 dcr->serial_number = ~handle[2];
2184 dcr->code = NFIT_FIC_BLK;
2185 dcr->windows = 1;
2186 dcr->window_size = DCR_SIZE;
2187 dcr->command_offset = 0;
2188 dcr->command_size = 8;
2189 dcr->status_offset = 8;
2190 dcr->status_size = 4;
2191 offset += dcr->header.length;
2192
2193 /* dcr-descriptor3: blk */
2194 dcr = nfit_buf + offset;
2195 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2196 dcr->header.length = sizeof(*dcr);
2197 dcr->region_index = 3+1;
2198 dcr_common_init(dcr);
2199 dcr->serial_number = ~handle[3];
2200 dcr->code = NFIT_FIC_BLK;
2201 dcr->windows = 1;
2202 dcr->window_size = DCR_SIZE;
2203 dcr->command_offset = 0;
2204 dcr->command_size = 8;
2205 dcr->status_offset = 8;
2206 dcr->status_size = 4;
2207 offset += dcr->header.length;
2208
2209 /* dcr-descriptor0: pmem */
2210 dcr = nfit_buf + offset;
2211 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2212 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2213 window_size);
2214 dcr->region_index = 4+1;
2215 dcr_common_init(dcr);
2216 dcr->serial_number = ~handle[0];
2217 dcr->code = NFIT_FIC_BYTEN;
2218 dcr->windows = 0;
2219 offset += dcr->header.length;
2220
2221 /* dcr-descriptor1: pmem */
2222 dcr = nfit_buf + offset;
2223 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2224 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2225 window_size);
2226 dcr->region_index = 5+1;
2227 dcr_common_init(dcr);
2228 dcr->serial_number = ~handle[1];
2229 dcr->code = NFIT_FIC_BYTEN;
2230 dcr->windows = 0;
2231 offset += dcr->header.length;
2232
2233 /* dcr-descriptor2: pmem */
2234 dcr = nfit_buf + offset;
2235 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2236 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2237 window_size);
2238 dcr->region_index = 6+1;
2239 dcr_common_init(dcr);
2240 dcr->serial_number = ~handle[2];
2241 dcr->code = NFIT_FIC_BYTEN;
2242 dcr->windows = 0;
2243 offset += dcr->header.length;
2244
2245 /* dcr-descriptor3: pmem */
2246 dcr = nfit_buf + offset;
2247 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2248 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2249 window_size);
2250 dcr->region_index = 7+1;
2251 dcr_common_init(dcr);
2252 dcr->serial_number = ~handle[3];
2253 dcr->code = NFIT_FIC_BYTEN;
2254 dcr->windows = 0;
2255 offset += dcr->header.length;
2256
2257 /* bdw0 (spa/dcr0, dimm0) */
2258 bdw = nfit_buf + offset;
2259 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
2260 bdw->header.length = sizeof(*bdw);
2261 bdw->region_index = 0+1;
2262 bdw->windows = 1;
2263 bdw->offset = 0;
2264 bdw->size = BDW_SIZE;
2265 bdw->capacity = DIMM_SIZE;
2266 bdw->start_address = 0;
2267 offset += bdw->header.length;
2268
2269 /* bdw1 (spa/dcr1, dimm1) */
2270 bdw = nfit_buf + offset;
2271 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
2272 bdw->header.length = sizeof(*bdw);
2273 bdw->region_index = 1+1;
2274 bdw->windows = 1;
2275 bdw->offset = 0;
2276 bdw->size = BDW_SIZE;
2277 bdw->capacity = DIMM_SIZE;
2278 bdw->start_address = 0;
2279 offset += bdw->header.length;
2280
2281 /* bdw2 (spa/dcr2, dimm2) */
2282 bdw = nfit_buf + offset;
2283 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
2284 bdw->header.length = sizeof(*bdw);
2285 bdw->region_index = 2+1;
2286 bdw->windows = 1;
2287 bdw->offset = 0;
2288 bdw->size = BDW_SIZE;
2289 bdw->capacity = DIMM_SIZE;
2290 bdw->start_address = 0;
2291 offset += bdw->header.length;
2292
2293 /* bdw3 (spa/dcr3, dimm3) */
2294 bdw = nfit_buf + offset;
2295 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
2296 bdw->header.length = sizeof(*bdw);
2297 bdw->region_index = 3+1;
2298 bdw->windows = 1;
2299 bdw->offset = 0;
2300 bdw->size = BDW_SIZE;
2301 bdw->capacity = DIMM_SIZE;
2302 bdw->start_address = 0;
2303 offset += bdw->header.length;
2304
2305 /* flush0 (dimm0) */
2306 flush = nfit_buf + offset;
2307 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
2308 flush->header.length = flush_hint_size;
2309 flush->device_handle = handle[0];
2310 flush->hint_count = NUM_HINTS;
2311 for (i = 0; i < NUM_HINTS; i++)
2312 flush->hint_address[i] = t->flush_dma[0] + i * sizeof(u64);
2313 offset += flush->header.length;
2314
2315 /* flush1 (dimm1) */
2316 flush = nfit_buf + offset;
2317 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
2318 flush->header.length = flush_hint_size;
2319 flush->device_handle = handle[1];
2320 flush->hint_count = NUM_HINTS;
2321 for (i = 0; i < NUM_HINTS; i++)
2322 flush->hint_address[i] = t->flush_dma[1] + i * sizeof(u64);
2323 offset += flush->header.length;
2324
2325 /* flush2 (dimm2) */
2326 flush = nfit_buf + offset;
2327 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
2328 flush->header.length = flush_hint_size;
2329 flush->device_handle = handle[2];
2330 flush->hint_count = NUM_HINTS;
2331 for (i = 0; i < NUM_HINTS; i++)
2332 flush->hint_address[i] = t->flush_dma[2] + i * sizeof(u64);
2333 offset += flush->header.length;
2334
2335 /* flush3 (dimm3) */
2336 flush = nfit_buf + offset;
2337 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
2338 flush->header.length = flush_hint_size;
2339 flush->device_handle = handle[3];
2340 flush->hint_count = NUM_HINTS;
2341 for (i = 0; i < NUM_HINTS; i++)
2342 flush->hint_address[i] = t->flush_dma[3] + i * sizeof(u64);
2343 offset += flush->header.length;
2344
2345 /* platform capabilities */
2346 pcap = nfit_buf + offset;
2347 pcap->header.type = ACPI_NFIT_TYPE_CAPABILITIES;
2348 pcap->header.length = sizeof(*pcap);
2349 pcap->highest_capability = 1;
2350 pcap->capabilities = ACPI_NFIT_CAPABILITY_MEM_FLUSH;
2351 offset += pcap->header.length;
2352
2353 if (t->setup_hotplug) {
2354 /* dcr-descriptor4: blk */
2355 dcr = nfit_buf + offset;
2356 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2357 dcr->header.length = sizeof(*dcr);
2358 dcr->region_index = 8+1;
2359 dcr_common_init(dcr);
2360 dcr->serial_number = ~handle[4];
2361 dcr->code = NFIT_FIC_BLK;
2362 dcr->windows = 1;
2363 dcr->window_size = DCR_SIZE;
2364 dcr->command_offset = 0;
2365 dcr->command_size = 8;
2366 dcr->status_offset = 8;
2367 dcr->status_size = 4;
2368 offset += dcr->header.length;
2369
2370 /* dcr-descriptor4: pmem */
2371 dcr = nfit_buf + offset;
2372 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2373 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2374 window_size);
2375 dcr->region_index = 9+1;
2376 dcr_common_init(dcr);
2377 dcr->serial_number = ~handle[4];
2378 dcr->code = NFIT_FIC_BYTEN;
2379 dcr->windows = 0;
2380 offset += dcr->header.length;
2381
2382 /* bdw4 (spa/dcr4, dimm4) */
2383 bdw = nfit_buf + offset;
2384 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
2385 bdw->header.length = sizeof(*bdw);
2386 bdw->region_index = 8+1;
2387 bdw->windows = 1;
2388 bdw->offset = 0;
2389 bdw->size = BDW_SIZE;
2390 bdw->capacity = DIMM_SIZE;
2391 bdw->start_address = 0;
2392 offset += bdw->header.length;
2393
2394 /* spa10 (dcr4) dimm4 */
2395 spa = nfit_buf + offset;
2396 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
2397 spa->header.length = sizeof(*spa);
2398 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
2399 spa->range_index = 10+1;
2400 spa->address = t->dcr_dma[4];
2401 spa->length = DCR_SIZE;
2402 offset += spa->header.length;
2403
2404 /*
2405 * spa11 (single-dimm interleave for hotplug, note storage
2406 * does not actually alias the related block-data-window
2407 * regions)
2408 */
2409 spa = nfit_buf + offset;
2410 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
2411 spa->header.length = sizeof(*spa);
2412 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
2413 spa->range_index = 11+1;
2414 spa->address = t->spa_set_dma[2];
2415 spa->length = SPA0_SIZE;
2416 offset += spa->header.length;
2417
2418 /* spa12 (bdw for dcr4) dimm4 */
2419 spa = nfit_buf + offset;
2420 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
2421 spa->header.length = sizeof(*spa);
2422 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
2423 spa->range_index = 12+1;
2424 spa->address = t->dimm_dma[4];
2425 spa->length = DIMM_SIZE;
2426 offset += spa->header.length;
2427
2428 /* mem-region14 (spa/dcr4, dimm4) */
2429 memdev = nfit_buf + offset;
2430 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2431 memdev->header.length = sizeof(*memdev);
2432 memdev->device_handle = handle[4];
2433 memdev->physical_id = 4;
2434 memdev->region_id = 0;
2435 memdev->range_index = 10+1;
2436 memdev->region_index = 8+1;
2437 memdev->region_size = 0;
2438 memdev->region_offset = 0;
2439 memdev->address = 0;
2440 memdev->interleave_index = 0;
2441 memdev->interleave_ways = 1;
2442 offset += memdev->header.length;
2443
2444 /* mem-region15 (spa11, dimm4) */
2445 memdev = nfit_buf + offset;
2446 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2447 memdev->header.length = sizeof(*memdev);
2448 memdev->device_handle = handle[4];
2449 memdev->physical_id = 4;
2450 memdev->region_id = 0;
2451 memdev->range_index = 11+1;
2452 memdev->region_index = 9+1;
2453 memdev->region_size = SPA0_SIZE;
2454 memdev->region_offset = (1ULL << 48);
2455 memdev->address = 0;
2456 memdev->interleave_index = 0;
2457 memdev->interleave_ways = 1;
2458 memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED;
2459 offset += memdev->header.length;
2460
2461 /* mem-region16 (spa/bdw4, dimm4) */
2462 memdev = nfit_buf + offset;
2463 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2464 memdev->header.length = sizeof(*memdev);
2465 memdev->device_handle = handle[4];
2466 memdev->physical_id = 4;
2467 memdev->region_id = 0;
2468 memdev->range_index = 12+1;
2469 memdev->region_index = 8+1;
2470 memdev->region_size = 0;
2471 memdev->region_offset = 0;
2472 memdev->address = 0;
2473 memdev->interleave_index = 0;
2474 memdev->interleave_ways = 1;
2475 offset += memdev->header.length;
2476
2477 /* flush3 (dimm4) */
2478 flush = nfit_buf + offset;
2479 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
2480 flush->header.length = flush_hint_size;
2481 flush->device_handle = handle[4];
2482 flush->hint_count = NUM_HINTS;
2483 for (i = 0; i < NUM_HINTS; i++)
2484 flush->hint_address[i] = t->flush_dma[4]
2485 + i * sizeof(u64);
2486 offset += flush->header.length;
2487
2488 /* sanity check to make sure we've filled the buffer */
2489 WARN_ON(offset != t->nfit_size);
2490 }
2491
2492 t->nfit_filled = offset;
2493
2494 post_ars_status(&t->ars_state, &t->badrange, t->spa_set_dma[0],
2495 SPA0_SIZE);
2496
2497 acpi_desc = &t->acpi_desc;
2498 set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_cmd_force_en);
2499 set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);
2500 set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);
2501 set_bit(ND_INTEL_SMART, &acpi_desc->dimm_cmd_force_en);
2502 set_bit(ND_INTEL_SMART_THRESHOLD, &acpi_desc->dimm_cmd_force_en);
2503 set_bit(ND_INTEL_SMART_SET_THRESHOLD, &acpi_desc->dimm_cmd_force_en);
2504 set_bit(ND_INTEL_SMART_INJECT, &acpi_desc->dimm_cmd_force_en);
2505 set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_cmd_force_en);
2506 set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en);
2507 set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en);
2508 set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en);
2509 set_bit(ND_CMD_CALL, &acpi_desc->bus_cmd_force_en);
2510 set_bit(NFIT_CMD_TRANSLATE_SPA, &acpi_desc->bus_nfit_cmd_force_en);
2511 set_bit(NFIT_CMD_ARS_INJECT_SET, &acpi_desc->bus_nfit_cmd_force_en);
2512 set_bit(NFIT_CMD_ARS_INJECT_CLEAR, &acpi_desc->bus_nfit_cmd_force_en);
2513 set_bit(NFIT_CMD_ARS_INJECT_GET, &acpi_desc->bus_nfit_cmd_force_en);
2514 set_bit(ND_INTEL_FW_GET_INFO, &acpi_desc->dimm_cmd_force_en);
2515 set_bit(ND_INTEL_FW_START_UPDATE, &acpi_desc->dimm_cmd_force_en);
2516 set_bit(ND_INTEL_FW_SEND_DATA, &acpi_desc->dimm_cmd_force_en);
2517 set_bit(ND_INTEL_FW_FINISH_UPDATE, &acpi_desc->dimm_cmd_force_en);
2518 set_bit(ND_INTEL_FW_FINISH_QUERY, &acpi_desc->dimm_cmd_force_en);
2519 set_bit(ND_INTEL_ENABLE_LSS_STATUS, &acpi_desc->dimm_cmd_force_en);
2520 set_bit(NVDIMM_INTEL_GET_SECURITY_STATE,
2521 &acpi_desc->dimm_cmd_force_en);
2522 set_bit(NVDIMM_INTEL_SET_PASSPHRASE, &acpi_desc->dimm_cmd_force_en);
2523 set_bit(NVDIMM_INTEL_DISABLE_PASSPHRASE,
2524 &acpi_desc->dimm_cmd_force_en);
2525 set_bit(NVDIMM_INTEL_UNLOCK_UNIT, &acpi_desc->dimm_cmd_force_en);
2526 set_bit(NVDIMM_INTEL_FREEZE_LOCK, &acpi_desc->dimm_cmd_force_en);
2527 set_bit(NVDIMM_INTEL_SECURE_ERASE, &acpi_desc->dimm_cmd_force_en);
2528 set_bit(NVDIMM_INTEL_OVERWRITE, &acpi_desc->dimm_cmd_force_en);
2529 set_bit(NVDIMM_INTEL_QUERY_OVERWRITE, &acpi_desc->dimm_cmd_force_en);
2530 set_bit(NVDIMM_INTEL_SET_MASTER_PASSPHRASE,
2531 &acpi_desc->dimm_cmd_force_en);
2532 set_bit(NVDIMM_INTEL_MASTER_SECURE_ERASE,
2533 &acpi_desc->dimm_cmd_force_en);
2534 }
2535
2536 static void nfit_test1_setup(struct nfit_test *t)
2537 {
2538 size_t offset;
2539 void *nfit_buf = t->nfit_buf;
2540 struct acpi_nfit_memory_map *memdev;
2541 struct acpi_nfit_control_region *dcr;
2542 struct acpi_nfit_system_address *spa;
2543 struct acpi_nfit_desc *acpi_desc;
2544
2545 offset = 0;
2546 /* spa0 (flat range with no bdw aliasing) */
2547 spa = nfit_buf + offset;
2548 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
2549 spa->header.length = sizeof(*spa);
2550 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
2551 spa->range_index = 0+1;
2552 spa->address = t->spa_set_dma[0];
2553 spa->length = SPA2_SIZE;
2554 offset += spa->header.length;
2555
2556 /* virtual cd region */
2557 spa = nfit_buf + offset;
2558 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
2559 spa->header.length = sizeof(*spa);
2560 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_VCD), 16);
2561 spa->range_index = 0;
2562 spa->address = t->spa_set_dma[1];
2563 spa->length = SPA_VCD_SIZE;
2564 offset += spa->header.length;
2565
2566 /* mem-region0 (spa0, dimm0) */
2567 memdev = nfit_buf + offset;
2568 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2569 memdev->header.length = sizeof(*memdev);
2570 memdev->device_handle = handle[5];
2571 memdev->physical_id = 0;
2572 memdev->region_id = 0;
2573 memdev->range_index = 0+1;
2574 memdev->region_index = 0+1;
2575 memdev->region_size = SPA2_SIZE;
2576 memdev->region_offset = 0;
2577 memdev->address = 0;
2578 memdev->interleave_index = 0;
2579 memdev->interleave_ways = 1;
2580 memdev->flags = ACPI_NFIT_MEM_SAVE_FAILED | ACPI_NFIT_MEM_RESTORE_FAILED
2581 | ACPI_NFIT_MEM_FLUSH_FAILED | ACPI_NFIT_MEM_HEALTH_OBSERVED
2582 | ACPI_NFIT_MEM_NOT_ARMED;
2583 offset += memdev->header.length;
2584
2585 /* dcr-descriptor0 */
2586 dcr = nfit_buf + offset;
2587 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2588 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2589 window_size);
2590 dcr->region_index = 0+1;
2591 dcr_common_init(dcr);
2592 dcr->serial_number = ~handle[5];
2593 dcr->code = NFIT_FIC_BYTE;
2594 dcr->windows = 0;
2595 offset += dcr->header.length;
2596
2597 memdev = nfit_buf + offset;
2598 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
2599 memdev->header.length = sizeof(*memdev);
2600 memdev->device_handle = handle[6];
2601 memdev->physical_id = 0;
2602 memdev->region_id = 0;
2603 memdev->range_index = 0;
2604 memdev->region_index = 0+2;
2605 memdev->region_size = SPA2_SIZE;
2606 memdev->region_offset = 0;
2607 memdev->address = 0;
2608 memdev->interleave_index = 0;
2609 memdev->interleave_ways = 1;
2610 memdev->flags = ACPI_NFIT_MEM_MAP_FAILED;
2611 offset += memdev->header.length;
2612
2613 /* dcr-descriptor1 */
2614 dcr = nfit_buf + offset;
2615 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
2616 dcr->header.length = offsetof(struct acpi_nfit_control_region,
2617 window_size);
2618 dcr->region_index = 0+2;
2619 dcr_common_init(dcr);
2620 dcr->serial_number = ~handle[6];
2621 dcr->code = NFIT_FIC_BYTE;
2622 dcr->windows = 0;
2623 offset += dcr->header.length;
2624
2625 /* sanity check to make sure we've filled the buffer */
2626 WARN_ON(offset != t->nfit_size);
2627
2628 t->nfit_filled = offset;
2629
2630 post_ars_status(&t->ars_state, &t->badrange, t->spa_set_dma[0],
2631 SPA2_SIZE);
2632
2633 acpi_desc = &t->acpi_desc;
2634 set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_cmd_force_en);
2635 set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en);
2636 set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en);
2637 set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en);
2638 set_bit(ND_INTEL_ENABLE_LSS_STATUS, &acpi_desc->dimm_cmd_force_en);
2639 set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_cmd_force_en);
2640 set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);
2641 set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);
2642 }
2643
2644 static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa,
2645 void *iobuf, u64 len, int rw)
2646 {
2647 struct nfit_blk *nfit_blk = ndbr->blk_provider_data;
2648 struct nfit_blk_mmio *mmio = &nfit_blk->mmio[BDW];
2649 struct nd_region *nd_region = &ndbr->nd_region;
2650 unsigned int lane;
2651
2652 lane = nd_region_acquire_lane(nd_region);
2653 if (rw)
2654 memcpy(mmio->addr.base + dpa, iobuf, len);
2655 else {
2656 memcpy(iobuf, mmio->addr.base + dpa, len);
2657
2658 /* give us some some coverage of the arch_invalidate_pmem() API */
2659 arch_invalidate_pmem(mmio->addr.base + dpa, len);
2660 }
2661 nd_region_release_lane(nd_region, lane);
2662
2663 return 0;
2664 }
2665
2666 static unsigned long nfit_ctl_handle;
2667
2668 union acpi_object *result;
2669
2670 static union acpi_object *nfit_test_evaluate_dsm(acpi_handle handle,
2671 const guid_t *guid, u64 rev, u64 func, union acpi_object *argv4)
2672 {
2673 if (handle != &nfit_ctl_handle)
2674 return ERR_PTR(-ENXIO);
2675
2676 return result;
2677 }
2678
2679 static int setup_result(void *buf, size_t size)
2680 {
2681 result = kmalloc(sizeof(union acpi_object) + size, GFP_KERNEL);
2682 if (!result)
2683 return -ENOMEM;
2684 result->package.type = ACPI_TYPE_BUFFER,
2685 result->buffer.pointer = (void *) (result + 1);
2686 result->buffer.length = size;
2687 memcpy(result->buffer.pointer, buf, size);
2688 memset(buf, 0, size);
2689 return 0;
2690 }
2691
2692 static int nfit_ctl_test(struct device *dev)
2693 {
2694 int rc, cmd_rc;
2695 struct nvdimm *nvdimm;
2696 struct acpi_device *adev;
2697 struct nfit_mem *nfit_mem;
2698 struct nd_ars_record *record;
2699 struct acpi_nfit_desc *acpi_desc;
2700 const u64 test_val = 0x0123456789abcdefULL;
2701 unsigned long mask, cmd_size, offset;
2702 union {
2703 struct nd_cmd_get_config_size cfg_size;
2704 struct nd_cmd_clear_error clear_err;
2705 struct nd_cmd_ars_status ars_stat;
2706 struct nd_cmd_ars_cap ars_cap;
2707 char buf[sizeof(struct nd_cmd_ars_status)
2708 + sizeof(struct nd_ars_record)];
2709 } cmds;
2710
2711 adev = devm_kzalloc(dev, sizeof(*adev), GFP_KERNEL);
2712 if (!adev)
2713 return -ENOMEM;
2714 *adev = (struct acpi_device) {
2715 .handle = &nfit_ctl_handle,
2716 .dev = {
2717 .init_name = "test-adev",
2718 },
2719 };
2720
2721 acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL);
2722 if (!acpi_desc)
2723 return -ENOMEM;
2724 *acpi_desc = (struct acpi_nfit_desc) {
2725 .nd_desc = {
2726 .cmd_mask = 1UL << ND_CMD_ARS_CAP
2727 | 1UL << ND_CMD_ARS_START
2728 | 1UL << ND_CMD_ARS_STATUS
2729 | 1UL << ND_CMD_CLEAR_ERROR
2730 | 1UL << ND_CMD_CALL,
2731 .module = THIS_MODULE,
2732 .provider_name = "ACPI.NFIT",
2733 .ndctl = acpi_nfit_ctl,
2734 .bus_dsm_mask = 1UL << NFIT_CMD_TRANSLATE_SPA
2735 | 1UL << NFIT_CMD_ARS_INJECT_SET
2736 | 1UL << NFIT_CMD_ARS_INJECT_CLEAR
2737 | 1UL << NFIT_CMD_ARS_INJECT_GET,
2738 },
2739 .dev = &adev->dev,
2740 };
2741
2742 nfit_mem = devm_kzalloc(dev, sizeof(*nfit_mem), GFP_KERNEL);
2743 if (!nfit_mem)
2744 return -ENOMEM;
2745
2746 mask = 1UL << ND_CMD_SMART | 1UL << ND_CMD_SMART_THRESHOLD
2747 | 1UL << ND_CMD_DIMM_FLAGS | 1UL << ND_CMD_GET_CONFIG_SIZE
2748 | 1UL << ND_CMD_GET_CONFIG_DATA | 1UL << ND_CMD_SET_CONFIG_DATA
2749 | 1UL << ND_CMD_VENDOR;
2750 *nfit_mem = (struct nfit_mem) {
2751 .adev = adev,
2752 .family = NVDIMM_FAMILY_INTEL,
2753 .dsm_mask = mask,
2754 };
2755
2756 nvdimm = devm_kzalloc(dev, sizeof(*nvdimm), GFP_KERNEL);
2757 if (!nvdimm)
2758 return -ENOMEM;
2759 *nvdimm = (struct nvdimm) {
2760 .provider_data = nfit_mem,
2761 .cmd_mask = mask,
2762 .dev = {
2763 .init_name = "test-dimm",
2764 },
2765 };
2766
2767
2768 /* basic checkout of a typical 'get config size' command */
2769 cmd_size = sizeof(cmds.cfg_size);
2770 cmds.cfg_size = (struct nd_cmd_get_config_size) {
2771 .status = 0,
2772 .config_size = SZ_128K,
2773 .max_xfer = SZ_4K,
2774 };
2775 rc = setup_result(cmds.buf, cmd_size);
2776 if (rc)
2777 return rc;
2778 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, nvdimm, ND_CMD_GET_CONFIG_SIZE,
2779 cmds.buf, cmd_size, &cmd_rc);
2780
2781 if (rc < 0 || cmd_rc || cmds.cfg_size.status != 0
2782 || cmds.cfg_size.config_size != SZ_128K
2783 || cmds.cfg_size.max_xfer != SZ_4K) {
2784 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2785 __func__, __LINE__, rc, cmd_rc);
2786 return -EIO;
2787 }
2788
2789
2790 /* test ars_status with zero output */
2791 cmd_size = offsetof(struct nd_cmd_ars_status, address);
2792 cmds.ars_stat = (struct nd_cmd_ars_status) {
2793 .out_length = 0,
2794 };
2795 rc = setup_result(cmds.buf, cmd_size);
2796 if (rc)
2797 return rc;
2798 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, NULL, ND_CMD_ARS_STATUS,
2799 cmds.buf, cmd_size, &cmd_rc);
2800
2801 if (rc < 0 || cmd_rc) {
2802 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2803 __func__, __LINE__, rc, cmd_rc);
2804 return -EIO;
2805 }
2806
2807
2808 /* test ars_cap with benign extended status */
2809 cmd_size = sizeof(cmds.ars_cap);
2810 cmds.ars_cap = (struct nd_cmd_ars_cap) {
2811 .status = ND_ARS_PERSISTENT << 16,
2812 };
2813 offset = offsetof(struct nd_cmd_ars_cap, status);
2814 rc = setup_result(cmds.buf + offset, cmd_size - offset);
2815 if (rc)
2816 return rc;
2817 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, NULL, ND_CMD_ARS_CAP,
2818 cmds.buf, cmd_size, &cmd_rc);
2819
2820 if (rc < 0 || cmd_rc) {
2821 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2822 __func__, __LINE__, rc, cmd_rc);
2823 return -EIO;
2824 }
2825
2826
2827 /* test ars_status with 'status' trimmed from 'out_length' */
2828 cmd_size = sizeof(cmds.ars_stat) + sizeof(struct nd_ars_record);
2829 cmds.ars_stat = (struct nd_cmd_ars_status) {
2830 .out_length = cmd_size - 4,
2831 };
2832 record = &cmds.ars_stat.records[0];
2833 *record = (struct nd_ars_record) {
2834 .length = test_val,
2835 };
2836 rc = setup_result(cmds.buf, cmd_size);
2837 if (rc)
2838 return rc;
2839 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, NULL, ND_CMD_ARS_STATUS,
2840 cmds.buf, cmd_size, &cmd_rc);
2841
2842 if (rc < 0 || cmd_rc || record->length != test_val) {
2843 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2844 __func__, __LINE__, rc, cmd_rc);
2845 return -EIO;
2846 }
2847
2848
2849 /* test ars_status with 'Output (Size)' including 'status' */
2850 cmd_size = sizeof(cmds.ars_stat) + sizeof(struct nd_ars_record);
2851 cmds.ars_stat = (struct nd_cmd_ars_status) {
2852 .out_length = cmd_size,
2853 };
2854 record = &cmds.ars_stat.records[0];
2855 *record = (struct nd_ars_record) {
2856 .length = test_val,
2857 };
2858 rc = setup_result(cmds.buf, cmd_size);
2859 if (rc)
2860 return rc;
2861 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, NULL, ND_CMD_ARS_STATUS,
2862 cmds.buf, cmd_size, &cmd_rc);
2863
2864 if (rc < 0 || cmd_rc || record->length != test_val) {
2865 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2866 __func__, __LINE__, rc, cmd_rc);
2867 return -EIO;
2868 }
2869
2870
2871 /* test extended status for get_config_size results in failure */
2872 cmd_size = sizeof(cmds.cfg_size);
2873 cmds.cfg_size = (struct nd_cmd_get_config_size) {
2874 .status = 1 << 16,
2875 };
2876 rc = setup_result(cmds.buf, cmd_size);
2877 if (rc)
2878 return rc;
2879 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, nvdimm, ND_CMD_GET_CONFIG_SIZE,
2880 cmds.buf, cmd_size, &cmd_rc);
2881
2882 if (rc < 0 || cmd_rc >= 0) {
2883 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2884 __func__, __LINE__, rc, cmd_rc);
2885 return -EIO;
2886 }
2887
2888 /* test clear error */
2889 cmd_size = sizeof(cmds.clear_err);
2890 cmds.clear_err = (struct nd_cmd_clear_error) {
2891 .length = 512,
2892 .cleared = 512,
2893 };
2894 rc = setup_result(cmds.buf, cmd_size);
2895 if (rc)
2896 return rc;
2897 rc = acpi_nfit_ctl(&acpi_desc->nd_desc, NULL, ND_CMD_CLEAR_ERROR,
2898 cmds.buf, cmd_size, &cmd_rc);
2899 if (rc < 0 || cmd_rc) {
2900 dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n",
2901 __func__, __LINE__, rc, cmd_rc);
2902 return -EIO;
2903 }
2904
2905 return 0;
2906 }
2907
2908 static int nfit_test_probe(struct platform_device *pdev)
2909 {
2910 struct nvdimm_bus_descriptor *nd_desc;
2911 struct acpi_nfit_desc *acpi_desc;
2912 struct device *dev = &pdev->dev;
2913 struct nfit_test *nfit_test;
2914 struct nfit_mem *nfit_mem;
2915 union acpi_object *obj;
2916 int rc;
2917
2918 if (strcmp(dev_name(&pdev->dev), "nfit_test.0") == 0) {
2919 rc = nfit_ctl_test(&pdev->dev);
2920 if (rc)
2921 return rc;
2922 }
2923
2924 nfit_test = to_nfit_test(&pdev->dev);
2925
2926 /* common alloc */
2927 if (nfit_test->num_dcr) {
2928 int num = nfit_test->num_dcr;
2929
2930 nfit_test->dimm = devm_kcalloc(dev, num, sizeof(void *),
2931 GFP_KERNEL);
2932 nfit_test->dimm_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t),
2933 GFP_KERNEL);
2934 nfit_test->flush = devm_kcalloc(dev, num, sizeof(void *),
2935 GFP_KERNEL);
2936 nfit_test->flush_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t),
2937 GFP_KERNEL);
2938 nfit_test->label = devm_kcalloc(dev, num, sizeof(void *),
2939 GFP_KERNEL);
2940 nfit_test->label_dma = devm_kcalloc(dev, num,
2941 sizeof(dma_addr_t), GFP_KERNEL);
2942 nfit_test->dcr = devm_kcalloc(dev, num,
2943 sizeof(struct nfit_test_dcr *), GFP_KERNEL);
2944 nfit_test->dcr_dma = devm_kcalloc(dev, num,
2945 sizeof(dma_addr_t), GFP_KERNEL);
2946 nfit_test->smart = devm_kcalloc(dev, num,
2947 sizeof(struct nd_intel_smart), GFP_KERNEL);
2948 nfit_test->smart_threshold = devm_kcalloc(dev, num,
2949 sizeof(struct nd_intel_smart_threshold),
2950 GFP_KERNEL);
2951 nfit_test->fw = devm_kcalloc(dev, num,
2952 sizeof(struct nfit_test_fw), GFP_KERNEL);
2953 if (nfit_test->dimm && nfit_test->dimm_dma && nfit_test->label
2954 && nfit_test->label_dma && nfit_test->dcr
2955 && nfit_test->dcr_dma && nfit_test->flush
2956 && nfit_test->flush_dma
2957 && nfit_test->fw)
2958 /* pass */;
2959 else
2960 return -ENOMEM;
2961 }
2962
2963 if (nfit_test->num_pm) {
2964 int num = nfit_test->num_pm;
2965
2966 nfit_test->spa_set = devm_kcalloc(dev, num, sizeof(void *),
2967 GFP_KERNEL);
2968 nfit_test->spa_set_dma = devm_kcalloc(dev, num,
2969 sizeof(dma_addr_t), GFP_KERNEL);
2970 if (nfit_test->spa_set && nfit_test->spa_set_dma)
2971 /* pass */;
2972 else
2973 return -ENOMEM;
2974 }
2975
2976 /* per-nfit specific alloc */
2977 if (nfit_test->alloc(nfit_test))
2978 return -ENOMEM;
2979
2980 nfit_test->setup(nfit_test);
2981 acpi_desc = &nfit_test->acpi_desc;
2982 acpi_nfit_desc_init(acpi_desc, &pdev->dev);
2983 acpi_desc->blk_do_io = nfit_test_blk_do_io;
2984 nd_desc = &acpi_desc->nd_desc;
2985 nd_desc->provider_name = NULL;
2986 nd_desc->module = THIS_MODULE;
2987 nd_desc->ndctl = nfit_test_ctl;
2988
2989 rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_buf,
2990 nfit_test->nfit_filled);
2991 if (rc)
2992 return rc;
2993
2994 rc = devm_add_action_or_reset(&pdev->dev, acpi_nfit_shutdown, acpi_desc);
2995 if (rc)
2996 return rc;
2997
2998 if (nfit_test->setup != nfit_test0_setup)
2999 return 0;
3000
3001 nfit_test->setup_hotplug = 1;
3002 nfit_test->setup(nfit_test);
3003
3004 obj = kzalloc(sizeof(*obj), GFP_KERNEL);
3005 if (!obj)
3006 return -ENOMEM;
3007 obj->type = ACPI_TYPE_BUFFER;
3008 obj->buffer.length = nfit_test->nfit_size;
3009 obj->buffer.pointer = nfit_test->nfit_buf;
3010 *(nfit_test->_fit) = obj;
3011 __acpi_nfit_notify(&pdev->dev, nfit_test, 0x80);
3012
3013 /* associate dimm devices with nfit_mem data for notification testing */
3014 mutex_lock(&acpi_desc->init_mutex);
3015 list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) {
3016 u32 nfit_handle = __to_nfit_memdev(nfit_mem)->device_handle;
3017 int i;
3018
3019 for (i = 0; i < ARRAY_SIZE(handle); i++)
3020 if (nfit_handle == handle[i])
3021 dev_set_drvdata(nfit_test->dimm_dev[i],
3022 nfit_mem);
3023 }
3024 mutex_unlock(&acpi_desc->init_mutex);
3025
3026 return 0;
3027 }
3028
3029 static int nfit_test_remove(struct platform_device *pdev)
3030 {
3031 return 0;
3032 }
3033
3034 static void nfit_test_release(struct device *dev)
3035 {
3036 struct nfit_test *nfit_test = to_nfit_test(dev);
3037
3038 kfree(nfit_test);
3039 }
3040
3041 static const struct platform_device_id nfit_test_id[] = {
3042 { KBUILD_MODNAME },
3043 { },
3044 };
3045
3046 static struct platform_driver nfit_test_driver = {
3047 .probe = nfit_test_probe,
3048 .remove = nfit_test_remove,
3049 .driver = {
3050 .name = KBUILD_MODNAME,
3051 },
3052 .id_table = nfit_test_id,
3053 };
3054
3055 static char mcsafe_buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
3056
3057 enum INJECT {
3058 INJECT_NONE,
3059 INJECT_SRC,
3060 INJECT_DST,
3061 };
3062
3063 static void mcsafe_test_init(char *dst, char *src, size_t size)
3064 {
3065 size_t i;
3066
3067 memset(dst, 0xff, size);
3068 for (i = 0; i < size; i++)
3069 src[i] = (char) i;
3070 }
3071
3072 static bool mcsafe_test_validate(unsigned char *dst, unsigned char *src,
3073 size_t size, unsigned long rem)
3074 {
3075 size_t i;
3076
3077 for (i = 0; i < size - rem; i++)
3078 if (dst[i] != (unsigned char) i) {
3079 pr_info_once("%s:%d: offset: %zd got: %#x expect: %#x\n",
3080 __func__, __LINE__, i, dst[i],
3081 (unsigned char) i);
3082 return false;
3083 }
3084 for (i = size - rem; i < size; i++)
3085 if (dst[i] != 0xffU) {
3086 pr_info_once("%s:%d: offset: %zd got: %#x expect: 0xff\n",
3087 __func__, __LINE__, i, dst[i]);
3088 return false;
3089 }
3090 return true;
3091 }
3092
3093 void mcsafe_test(void)
3094 {
3095 char *inject_desc[] = { "none", "source", "destination" };
3096 enum INJECT inj;
3097
3098 if (IS_ENABLED(CONFIG_MCSAFE_TEST)) {
3099 pr_info("%s: run...\n", __func__);
3100 } else {
3101 pr_info("%s: disabled, skip.\n", __func__);
3102 return;
3103 }
3104
3105 for (inj = INJECT_NONE; inj <= INJECT_DST; inj++) {
3106 int i;
3107
3108 pr_info("%s: inject: %s\n", __func__, inject_desc[inj]);
3109 for (i = 0; i < 512; i++) {
3110 unsigned long expect, rem;
3111 void *src, *dst;
3112 bool valid;
3113
3114 switch (inj) {
3115 case INJECT_NONE:
3116 mcsafe_inject_src(NULL);
3117 mcsafe_inject_dst(NULL);
3118 dst = &mcsafe_buf[2048];
3119 src = &mcsafe_buf[1024 - i];
3120 expect = 0;
3121 break;
3122 case INJECT_SRC:
3123 mcsafe_inject_src(&mcsafe_buf[1024]);
3124 mcsafe_inject_dst(NULL);
3125 dst = &mcsafe_buf[2048];
3126 src = &mcsafe_buf[1024 - i];
3127 expect = 512 - i;
3128 break;
3129 case INJECT_DST:
3130 mcsafe_inject_src(NULL);
3131 mcsafe_inject_dst(&mcsafe_buf[2048]);
3132 dst = &mcsafe_buf[2048 - i];
3133 src = &mcsafe_buf[1024];
3134 expect = 512 - i;
3135 break;
3136 }
3137
3138 mcsafe_test_init(dst, src, 512);
3139 rem = __memcpy_mcsafe(dst, src, 512);
3140 valid = mcsafe_test_validate(dst, src, 512, expect);
3141 if (rem == expect && valid)
3142 continue;
3143 pr_info("%s: copy(%#lx, %#lx, %d) off: %d rem: %ld %s expect: %ld\n",
3144 __func__,
3145 ((unsigned long) dst) & ~PAGE_MASK,
3146 ((unsigned long ) src) & ~PAGE_MASK,
3147 512, i, rem, valid ? "valid" : "bad",
3148 expect);
3149 }
3150 }
3151
3152 mcsafe_inject_src(NULL);
3153 mcsafe_inject_dst(NULL);
3154 }
3155
3156 static __init int nfit_test_init(void)
3157 {
3158 int rc, i;
3159
3160 pmem_test();
3161 libnvdimm_test();
3162 acpi_nfit_test();
3163 device_dax_test();
3164 mcsafe_test();
3165 dax_pmem_test();
3166 dax_pmem_core_test();
3167 #ifdef CONFIG_DEV_DAX_PMEM_COMPAT
3168 dax_pmem_compat_test();
3169 #endif
3170
3171 nfit_test_setup(nfit_test_lookup, nfit_test_evaluate_dsm);
3172
3173 nfit_wq = create_singlethread_workqueue("nfit");
3174 if (!nfit_wq)
3175 return -ENOMEM;
3176
3177 nfit_test_dimm = class_create(THIS_MODULE, "nfit_test_dimm");
3178 if (IS_ERR(nfit_test_dimm)) {
3179 rc = PTR_ERR(nfit_test_dimm);
3180 goto err_register;
3181 }
3182
3183 nfit_pool = gen_pool_create(ilog2(SZ_4M), NUMA_NO_NODE);
3184 if (!nfit_pool) {
3185 rc = -ENOMEM;
3186 goto err_register;
3187 }
3188
3189 if (gen_pool_add(nfit_pool, SZ_4G, SZ_4G, NUMA_NO_NODE)) {
3190 rc = -ENOMEM;
3191 goto err_register;
3192 }
3193
3194 for (i = 0; i < NUM_NFITS; i++) {
3195 struct nfit_test *nfit_test;
3196 struct platform_device *pdev;
3197
3198 nfit_test = kzalloc(sizeof(*nfit_test), GFP_KERNEL);
3199 if (!nfit_test) {
3200 rc = -ENOMEM;
3201 goto err_register;
3202 }
3203 INIT_LIST_HEAD(&nfit_test->resources);
3204 badrange_init(&nfit_test->badrange);
3205 switch (i) {
3206 case 0:
3207 nfit_test->num_pm = NUM_PM;
3208 nfit_test->dcr_idx = 0;
3209 nfit_test->num_dcr = NUM_DCR;
3210 nfit_test->alloc = nfit_test0_alloc;
3211 nfit_test->setup = nfit_test0_setup;
3212 break;
3213 case 1:
3214 nfit_test->num_pm = 2;
3215 nfit_test->dcr_idx = NUM_DCR;
3216 nfit_test->num_dcr = 2;
3217 nfit_test->alloc = nfit_test1_alloc;
3218 nfit_test->setup = nfit_test1_setup;
3219 break;
3220 default:
3221 rc = -EINVAL;
3222 goto err_register;
3223 }
3224 pdev = &nfit_test->pdev;
3225 pdev->name = KBUILD_MODNAME;
3226 pdev->id = i;
3227 pdev->dev.release = nfit_test_release;
3228 rc = platform_device_register(pdev);
3229 if (rc) {
3230 put_device(&pdev->dev);
3231 goto err_register;
3232 }
3233 get_device(&pdev->dev);
3234
3235 rc = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
3236 if (rc)
3237 goto err_register;
3238
3239 instances[i] = nfit_test;
3240 INIT_WORK(&nfit_test->work, uc_error_notify);
3241 }
3242
3243 rc = platform_driver_register(&nfit_test_driver);
3244 if (rc)
3245 goto err_register;
3246 return 0;
3247
3248 err_register:
3249 if (nfit_pool)
3250 gen_pool_destroy(nfit_pool);
3251
3252 destroy_workqueue(nfit_wq);
3253 for (i = 0; i < NUM_NFITS; i++)
3254 if (instances[i])
3255 platform_device_unregister(&instances[i]->pdev);
3256 nfit_test_teardown();
3257 for (i = 0; i < NUM_NFITS; i++)
3258 if (instances[i])
3259 put_device(&instances[i]->pdev.dev);
3260
3261 return rc;
3262 }
3263
3264 static __exit void nfit_test_exit(void)
3265 {
3266 int i;
3267
3268 flush_workqueue(nfit_wq);
3269 destroy_workqueue(nfit_wq);
3270 for (i = 0; i < NUM_NFITS; i++)
3271 platform_device_unregister(&instances[i]->pdev);
3272 platform_driver_unregister(&nfit_test_driver);
3273 nfit_test_teardown();
3274
3275 gen_pool_destroy(nfit_pool);
3276
3277 for (i = 0; i < NUM_NFITS; i++)
3278 put_device(&instances[i]->pdev.dev);
3279 class_destroy(nfit_test_dimm);
3280 }
3281
3282 module_init(nfit_test_init);
3283 module_exit(nfit_test_exit);
3284 MODULE_LICENSE("GPL v2");
3285 MODULE_AUTHOR("Intel Corporation");
Linux with added FPC-III support