118 		     struct pstore_record *record)  in ramoops_get_next_prz()  argument
137 	record->type = prz->type;  in ramoops_get_next_prz()
138 	record->id = id;  in ramoops_get_next_prz()
176 static ssize_t ramoops_pstore_read(struct pstore_record *record)  in ramoops_pstore_read()  argument
179 	struct ramoops_context *cxt = record->psi->data;  in ramoops_pstore_read()
189 	record->time.tv_sec = 0;  in ramoops_pstore_read()
190 	record->time.tv_nsec = 0;  in ramoops_pstore_read()
191 	record->compressed = false;  in ramoops_pstore_read()
196 					   record);  in ramoops_pstore_read()
200 						      &record->time,  in ramoops_pstore_read()
201 						      &record->compressed);  in ramoops_pstore_read()
202 		/* Clear and skip this DMESG record if it has no valid header */  in ramoops_pstore_read()
211 		prz = ramoops_get_next_prz(&cxt->cprz, 0 /* single */, record);  in ramoops_pstore_read()
214 		prz = ramoops_get_next_prz(&cxt->mprz, 0 /* single */, record);  in ramoops_pstore_read()
221 						   record);  in ramoops_pstore_read()
224 			 * Build a new dummy record which combines all the  in ramoops_pstore_read()
238 						cxt->ftrace_read_cnt++, record);  in ramoops_pstore_read()
256 			record->id = 0;  in ramoops_pstore_read()
268 	record->ecc_notice_size = persistent_ram_ecc_string(prz, NULL, 0);  in ramoops_pstore_read()
270 	record->buf = kmalloc(size + record->ecc_notice_size + 1, GFP_KERNEL);  in ramoops_pstore_read()
271 	if (record->buf == NULL) {  in ramoops_pstore_read()
276 	memcpy(record->buf, (char *)persistent_ram_old(prz) + header_length,  in ramoops_pstore_read()
279 	persistent_ram_ecc_string(prz, record->buf + size,  in ramoops_pstore_read()
280 				  record->ecc_notice_size + 1);  in ramoops_pstore_read()
292 				     struct pstore_record *record)  in ramoops_write_kmsg_hdr()  argument
299 		(time64_t)record->time.tv_sec,  in ramoops_write_kmsg_hdr()
300 		record->time.tv_nsec / 1000,  in ramoops_write_kmsg_hdr()
301 		record->compressed ? 'C' : 'D');  in ramoops_write_kmsg_hdr()
307 static int notrace ramoops_pstore_write(struct pstore_record *record)  in ramoops_pstore_write()  argument
309 	struct ramoops_context *cxt = record->psi->data;  in ramoops_pstore_write()
313 	if (record->type == PSTORE_TYPE_CONSOLE) {  in ramoops_pstore_write()
316 		persistent_ram_write(cxt->cprz, record->buf, record->size);  in ramoops_pstore_write()
318 	} else if (record->type == PSTORE_TYPE_FTRACE) {  in ramoops_pstore_write()
331 		persistent_ram_write(cxt->fprzs[zonenum], record->buf,  in ramoops_pstore_write()
332 				     record->size);  in ramoops_pstore_write()
334 	} else if (record->type == PSTORE_TYPE_PMSG) {  in ramoops_pstore_write()
339 	if (record->type != PSTORE_TYPE_DMESG)  in ramoops_pstore_write()
343 	 * We could filter on record->reason here if we wanted to (which  in ramoops_pstore_write()
358 	if (record->part != 1)  in ramoops_pstore_write()
377 	/* Build header and append record contents. */  in ramoops_pstore_write()
378 	hlen = ramoops_write_kmsg_hdr(prz, record);  in ramoops_pstore_write()
382 	size = record->size;  in ramoops_pstore_write()
385 	persistent_ram_write(prz, record->buf, size);  in ramoops_pstore_write()
392 static int notrace ramoops_pstore_write_user(struct pstore_record *record,  in ramoops_pstore_write_user()  argument
395 	if (record->type == PSTORE_TYPE_PMSG) {  in ramoops_pstore_write_user()
396 		struct ramoops_context *cxt = record->psi->data;  in ramoops_pstore_write_user()
400 		return persistent_ram_write_user(cxt->mprz, buf, record->size);  in ramoops_pstore_write_user()
406 static int ramoops_pstore_erase(struct pstore_record *record)  in ramoops_pstore_erase()  argument
408 	struct ramoops_context *cxt = record->psi->data;  in ramoops_pstore_erase()
411 	switch (record->type) {  in ramoops_pstore_erase()
413 		if (record->id >= cxt->max_dump_cnt)  in ramoops_pstore_erase()
415 		prz = cxt->dprzs[record->id];  in ramoops_pstore_erase()
421 		if (record->id >= cxt->max_ftrace_cnt)  in ramoops_pstore_erase()
423 		prz = cxt->fprzs[record->id];  in ramoops_pstore_erase()
491 	 * If we have a negative record size, calculate it based on  in ramoops_init_przs()
492 	 * mem_sz / *cnt. If we have a positive record size, calculate  in ramoops_init_przs()
500 			dev_err(dev, "%s record size == 0 (%zu / %u)\n",  in ramoops_init_przs()
507 			dev_err(dev, "%s record count == 0 (%zu / %zu)\n",  in ramoops_init_przs()
674 	parse_u32("record-size", pdata->record_size, 0);  in ramoops_parse_dt()
686 	 * console_size and pmsg_size to the record size since that's  in ramoops_parse_dt()
743 		pr_err("The memory size and the record/console size must be "  in ramoops_probe()
819 	 * must match the size of the dprz record (after PRZ header  in ramoops_probe()