Lines Matching defs:nd_pfn
20 struct nd_pfn *nd_pfn = to_nd_pfn(dev);
23 nd_detach_ndns(&nd_pfn->dev, &nd_pfn->ndns);
24 ida_simple_remove(&nd_region->pfn_ida, nd_pfn->id);
25 kfree(nd_pfn->uuid);
26 kfree(nd_pfn);
29 struct nd_pfn *to_nd_pfn(struct device *dev)
31 struct nd_pfn *nd_pfn = container_of(dev, struct nd_pfn, dev);
34 return nd_pfn;
41 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
43 switch (nd_pfn->mode) {
56 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
68 nd_pfn->mode = PFN_MODE_PMEM;
71 nd_pfn->mode = PFN_MODE_RAM;
74 nd_pfn->mode = PFN_MODE_NONE;
90 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
92 return sprintf(buf, "%ld\n", nd_pfn->align);
123 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
129 rc = nd_size_select_store(dev, buf, &nd_pfn->align,
143 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
145 if (nd_pfn->uuid)
146 return sprintf(buf, "%pUb\n", nd_pfn->uuid);
153 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
157 rc = nd_uuid_store(dev, &nd_pfn->uuid, buf, len);
169 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
173 rc = sprintf(buf, "%s\n", nd_pfn->ndns
174 ? dev_name(&nd_pfn->ndns->dev) : "");
182 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
187 rc = nd_namespace_store(dev, &nd_pfn->ndns, buf, len);
200 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
205 struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
207 struct nd_namespace_common *ndns = nd_pfn->ndns;
226 struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
231 struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
233 struct nd_namespace_common *ndns = nd_pfn->ndns;
284 .name = "nd_pfn",
295 struct device *nd_pfn_devinit(struct nd_pfn *nd_pfn,
300 if (!nd_pfn)
303 nd_pfn->mode = PFN_MODE_NONE;
304 nd_pfn->align = nd_pfn_default_alignment();
305 dev = &nd_pfn->dev;
306 device_initialize(&nd_pfn->dev);
307 if (ndns && !__nd_attach_ndns(&nd_pfn->dev, ndns, &nd_pfn->ndns)) {
316 static struct nd_pfn *nd_pfn_alloc(struct nd_region *nd_region)
318 struct nd_pfn *nd_pfn;
321 nd_pfn = kzalloc(sizeof(*nd_pfn), GFP_KERNEL);
322 if (!nd_pfn)
325 nd_pfn->id = ida_simple_get(&nd_region->pfn_ida, 0, 0, GFP_KERNEL);
326 if (nd_pfn->id < 0) {
327 kfree(nd_pfn);
331 dev = &nd_pfn->dev;
332 dev_set_name(dev, "pfn%d.%d", nd_region->id, nd_pfn->id);
336 return nd_pfn;
341 struct nd_pfn *nd_pfn;
347 nd_pfn = nd_pfn_alloc(nd_region);
348 dev = nd_pfn_devinit(nd_pfn, NULL);
360 static int nd_pfn_clear_memmap_errors(struct nd_pfn *nd_pfn)
362 struct nd_region *nd_region = to_nd_region(nd_pfn->dev.parent);
363 struct nd_namespace_common *ndns = nd_pfn->ndns;
365 struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
370 if (nd_pfn->mode != PFN_MODE_PMEM)
381 devm_namespace_disable(&nd_pfn->dev, ndns);
382 rc = devm_namespace_enable(&nd_pfn->dev, ndns, le64_to_cpu(pfn_sb->dataoff));
393 dev_dbg(&nd_pfn->dev, "meta: %x badblocks at %llx\n",
411 dev_err(&nd_pfn->dev,
439 * @nd_pfn: fsdax namespace runtime state / properties
446 int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
453 struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
454 struct nd_namespace_common *ndns = nd_pfn->ndns;
460 if (!is_memory(nd_pfn->dev.parent))
508 dev_err(&nd_pfn->dev,
516 dev_err(&nd_pfn->dev,
529 dev_err(&nd_pfn->dev, "init failed, alignment mismatch: "
530 "%ld:%ld\n", nd_pfn->align, align);
534 if (!nd_pfn->uuid) {
540 nd_pfn->uuid = kmemdup(pfn_sb->uuid, 16, GFP_KERNEL);
541 if (!nd_pfn->uuid)
543 nd_pfn->align = align;
544 nd_pfn->mode = mode;
550 if (memcmp(nd_pfn->uuid, pfn_sb->uuid, 16) != 0)
559 if (nd_pfn->align != align || nd_pfn->mode != mode) {
560 dev_err(&nd_pfn->dev,
562 dev_dbg(&nd_pfn->dev, "align: %lx:%lx mode: %d:%d\n",
563 nd_pfn->align, align, nd_pfn->mode,
570 dev_err(&nd_pfn->dev, "alignment: %lx exceeds capacity %llx\n",
584 dev_err(&nd_pfn->dev, "pfn array size exceeds capacity of %s\n",
591 dev_err(&nd_pfn->dev,
599 dev_err(&nd_pfn->dev, "resource start misaligned\n");
605 dev_err(&nd_pfn->dev, "resource end misaligned\n");
616 struct nd_pfn *nd_pfn;
633 nd_pfn = nd_pfn_alloc(nd_region);
634 pfn_dev = nd_pfn_devinit(nd_pfn, ndns);
639 nd_pfn = to_nd_pfn(pfn_dev);
640 nd_pfn->pfn_sb = pfn_sb;
641 rc = nd_pfn_validate(nd_pfn, PFN_SIG);
644 nd_detach_ndns(pfn_dev, &nd_pfn->ndns);
673 static int __nvdimm_setup_pfn(struct nd_pfn *nd_pfn, struct dev_pagemap *pgmap)
677 struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
682 struct nd_namespace_common *ndns = nd_pfn->ndns;
697 if (nd_pfn->mode == PFN_MODE_RAM) {
700 nd_pfn->npfns = le64_to_cpu(pfn_sb->npfns);
701 } else if (nd_pfn->mode == PFN_MODE_PMEM) {
702 nd_pfn->npfns = PHYS_PFN((range_len(range) - offset));
703 if (le64_to_cpu(nd_pfn->pfn_sb->npfns) > nd_pfn->npfns)
704 dev_info(&nd_pfn->dev,
706 le64_to_cpu(nd_pfn->pfn_sb->npfns),
707 nd_pfn->npfns);
718 static int nd_pfn_init(struct nd_pfn *nd_pfn)
720 struct nd_namespace_common *ndns = nd_pfn->ndns;
732 pfn_sb = devm_kmalloc(&nd_pfn->dev, sizeof(*pfn_sb), GFP_KERNEL);
736 nd_pfn->pfn_sb = pfn_sb;
737 if (is_nd_dax(&nd_pfn->dev))
742 rc = nd_pfn_validate(nd_pfn, sig);
744 return nd_pfn_clear_memmap_errors(nd_pfn);
751 nd_region = to_nd_region(nd_pfn->dev.parent);
753 dev_info(&nd_pfn->dev,
768 align = max(nd_pfn->align, memremap_compat_align());
776 dev_err(&nd_pfn->dev, "%s: start %pa misaligned to %#lx\n",
782 if (nd_pfn->mode == PFN_MODE_PMEM) {
797 } else if (nd_pfn->mode == PFN_MODE_RAM)
803 dev_err(&nd_pfn->dev, "%s unable to satisfy requested alignment\n",
809 pfn_sb->mode = cpu_to_le32(nd_pfn->mode);
813 memcpy(pfn_sb->uuid, nd_pfn->uuid, 16);
818 pfn_sb->align = cpu_to_le32(nd_pfn->align);
824 rc = nd_pfn_clear_memmap_errors(nd_pfn);
832 * Determine the effective resource range and vmem_altmap from an nd_pfn
835 int nvdimm_setup_pfn(struct nd_pfn *nd_pfn, struct dev_pagemap *pgmap)
839 if (!nd_pfn->uuid || !nd_pfn->ndns)
842 rc = nd_pfn_init(nd_pfn);
847 return __nvdimm_setup_pfn(nd_pfn, pgmap);