> Maybe i think that my-patch should be worked only level-2/3..right? > Because URGENT_BKOPS bit in the EXCEPTION_EVENTS_STATUS is set whenever is > either 2 or 3. > In this case, host control with R1-type response.
For 4.41 your patch is fine. For 4.5 I think it starts BKOPS too often. For 4.5 devices the R1 response indicates that there is an exception event which may be have several different causes: PACKED_FAILURE, SYSPOOL_EXHAUSTED, DYNCAP_NEEDED or URGENT_BKOPS. But if the R1 response indicates an exception event it may be becuase of a cause which is not URGENT_BKOPS. So for 4.5 you must read EXCEPTION_EVENTS_STATUS to determine what the cause was. > But in level-0/1 case, need to check BKOPS_STATUS periodically. > How did you understand that "periodically" means? > If host need to get BKOPS_STATUS periodically, maybe send CMD8 periodically. > How periodically? Good question, I don't know yet. Problem this should be done when the system is otherwise idling, to not interfere with normal accesses (if you do I would expect you to get worse performance). / Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
