164 int cxl_mbox_send_cmd(struct cxl_dev_state *cxlds, u16 opcode, void *in,  in cxl_mbox_send_cmd()  argument
177 	if (in_size > cxlds->payload_size || out_size > cxlds->payload_size)  in cxl_mbox_send_cmd()
180 	rc = cxlds->mbox_send(cxlds, &mbox_cmd);  in cxl_mbox_send_cmd()
257 			     struct cxl_dev_state *cxlds, u16 opcode,  in cxl_mbox_cmd_ctor()  argument
272 			dev_dbg(cxlds->dev, "%s: input payload not allowed\n",  in cxl_mbox_cmd_ctor()
281 		mbox->size_out = cxlds->payload_size;  in cxl_mbox_cmd_ctor()
303 			      struct cxl_dev_state *cxlds)  in cxl_to_mem_cmd_raw()  argument
313 	if (send_cmd->out.size > cxlds->payload_size)  in cxl_to_mem_cmd_raw()
319 	dev_WARN_ONCE(cxlds->dev, true, "raw command path used\n");  in cxl_to_mem_cmd_raw()
335 			  struct cxl_dev_state *cxlds)  in cxl_to_mem_cmd()  argument
350 	if (!test_bit(info->id, cxlds->enabled_cmds))  in cxl_to_mem_cmd()
354 	if (test_bit(info->id, cxlds->exclusive_cmds))  in cxl_to_mem_cmd()
398 				      struct cxl_dev_state *cxlds,  in cxl_validate_cmd_from_user()  argument
412 	if (send_cmd->in.size > cxlds->payload_size)  in cxl_validate_cmd_from_user()
417 		rc = cxl_to_mem_cmd_raw(&mem_cmd, send_cmd, cxlds);  in cxl_validate_cmd_from_user()
419 		rc = cxl_to_mem_cmd(&mem_cmd, send_cmd, cxlds);  in cxl_validate_cmd_from_user()
425 	return cxl_mbox_cmd_ctor(mbox_cmd, cxlds, mem_cmd.opcode,  in cxl_validate_cmd_from_user()
487 static int handle_mailbox_cmd_from_user(struct cxl_dev_state *cxlds,  in handle_mailbox_cmd_from_user()  argument
492 	struct device *dev = cxlds->dev;  in handle_mailbox_cmd_from_user()
502 	rc = cxlds->mbox_send(cxlds, mbox_cmd);  in handle_mailbox_cmd_from_user()
531 	struct cxl_dev_state *cxlds = cxlmd->cxlds;  in cxl_send_cmd()  local
542 	rc = cxl_validate_cmd_from_user(&mbox_cmd, cxlmd->cxlds, &send);  in cxl_send_cmd()
546 	rc = handle_mailbox_cmd_from_user(cxlds, &mbox_cmd, send.out.payload,  in cxl_send_cmd()
557 static int cxl_xfer_log(struct cxl_dev_state *cxlds, uuid_t *uuid, u32 size, u8 *out)  in cxl_xfer_log()  argument
563 		u32 xfer_size = min_t(u32, remaining, cxlds->payload_size);  in cxl_xfer_log()
571 		rc = cxl_mbox_send_cmd(cxlds, CXL_MBOX_OP_GET_LOG, &log, sizeof(log),  in cxl_xfer_log()
593 static void cxl_walk_cel(struct cxl_dev_state *cxlds, size_t size, u8 *cel)  in cxl_walk_cel()  argument
606 			dev_dbg(cxlds->dev,  in cxl_walk_cel()
611 		set_bit(cmd->info.id, cxlds->enabled_cmds);  in cxl_walk_cel()
615 static struct cxl_mbox_get_supported_logs *cxl_get_gsl(struct cxl_dev_state *cxlds)  in cxl_get_gsl()  argument
620 	ret = kvmalloc(cxlds->payload_size, GFP_KERNEL);  in cxl_get_gsl()
624 	rc = cxl_mbox_send_cmd(cxlds, CXL_MBOX_OP_GET_SUPPORTED_LOGS, NULL, 0, ret,  in cxl_get_gsl()
625 			       cxlds->payload_size);  in cxl_get_gsl()
655 int cxl_enumerate_cmds(struct cxl_dev_state *cxlds)  in cxl_enumerate_cmds()  argument
658 	struct device *dev = cxlds->dev;  in cxl_enumerate_cmds()
662 	gsl = cxl_get_gsl(cxlds);  in cxl_enumerate_cmds()
683 		rc = cxl_xfer_log(cxlds, &uuid, size, log);  in cxl_enumerate_cmds()
689 		cxl_walk_cel(cxlds, size, log);  in cxl_enumerate_cmds()
695 				set_bit(cmd->info.id, cxlds->enabled_cmds);  in cxl_enumerate_cmds()
719 static int cxl_mem_get_partition_info(struct cxl_dev_state *cxlds)  in cxl_mem_get_partition_info()  argument
724 	rc = cxl_mbox_send_cmd(cxlds, CXL_MBOX_OP_GET_PARTITION_INFO, NULL, 0,  in cxl_mem_get_partition_info()
730 	cxlds->active_volatile_bytes =  in cxl_mem_get_partition_info()
732 	cxlds->active_persistent_bytes =  in cxl_mem_get_partition_info()
734 	cxlds->next_volatile_bytes =  in cxl_mem_get_partition_info()
736 	cxlds->next_persistent_bytes =  in cxl_mem_get_partition_info()
751 int cxl_dev_state_identify(struct cxl_dev_state *cxlds)  in cxl_dev_state_identify()  argument
757 	rc = cxl_mbox_send_cmd(cxlds, CXL_MBOX_OP_IDENTIFY, NULL, 0, &id,  in cxl_dev_state_identify()
762 	cxlds->total_bytes =  in cxl_dev_state_identify()
764 	cxlds->volatile_only_bytes =  in cxl_dev_state_identify()
766 	cxlds->persistent_only_bytes =  in cxl_dev_state_identify()
768 	cxlds->partition_align_bytes =  in cxl_dev_state_identify()
771 	cxlds->lsa_size = le32_to_cpu(id.lsa_size);  in cxl_dev_state_identify()
772 	memcpy(cxlds->firmware_version, id.fw_revision, sizeof(id.fw_revision));  in cxl_dev_state_identify()
804 int cxl_mem_create_range_info(struct cxl_dev_state *cxlds)  in cxl_mem_create_range_info()  argument
806 	struct device *dev = cxlds->dev;  in cxl_mem_create_range_info()
809 	cxlds->dpa_res =  in cxl_mem_create_range_info()
810 		(struct resource)DEFINE_RES_MEM(0, cxlds->total_bytes);  in cxl_mem_create_range_info()
812 	if (cxlds->partition_align_bytes == 0) {  in cxl_mem_create_range_info()
813 		rc = add_dpa_res(dev, &cxlds->dpa_res, &cxlds->ram_res, 0,  in cxl_mem_create_range_info()
814 				 cxlds->volatile_only_bytes, "ram");  in cxl_mem_create_range_info()
817 		return add_dpa_res(dev, &cxlds->dpa_res, &cxlds->pmem_res,  in cxl_mem_create_range_info()
818 				   cxlds->volatile_only_bytes,  in cxl_mem_create_range_info()
819 				   cxlds->persistent_only_bytes, "pmem");  in cxl_mem_create_range_info()
822 	rc = cxl_mem_get_partition_info(cxlds);  in cxl_mem_create_range_info()
828 	rc = add_dpa_res(dev, &cxlds->dpa_res, &cxlds->ram_res, 0,  in cxl_mem_create_range_info()
829 			 cxlds->active_volatile_bytes, "ram");  in cxl_mem_create_range_info()
832 	return add_dpa_res(dev, &cxlds->dpa_res, &cxlds->pmem_res,  in cxl_mem_create_range_info()
833 			   cxlds->active_volatile_bytes,  in cxl_mem_create_range_info()
834 			   cxlds->active_persistent_bytes, "pmem");  in cxl_mem_create_range_info()
840 	struct cxl_dev_state *cxlds;  in cxl_dev_state_create()  local
842 	cxlds = devm_kzalloc(dev, sizeof(*cxlds), GFP_KERNEL);  in cxl_dev_state_create()
843 	if (!cxlds) {  in cxl_dev_state_create()
848 	mutex_init(&cxlds->mbox_mutex);  in cxl_dev_state_create()
849 	cxlds->dev = dev;  in cxl_dev_state_create()
851 	return cxlds;  in cxl_dev_state_create()