config MTK_PRINTK tristate "mtk printk enhance" help mtk printk enhance feature, it include uart console control and kernel log much detect. It can build in or insmode. kernel log much detect only enable in eng load. config MTK_PRINTK_UART_CONSOLE bool "MTK printk UART controller" help MTK_PRINTK_UART_CONSOLE which is used to control whether to control printk to uart console. when boot up finish uart console do not output printk log. also RD can set the setting by command. config LOG_TOO_MUCH_WARNING bool "printk too much warning" help LOG_TOO_MUCH_WARNING which is used to control whether to detect printk too much issue. kernel log too much will detect and create a exception when printk log large than LOG_TOO_MUCH_DETECT_COUNT in one second. config LOG_TOO_MUCH_DETECT_COUNT hex "printk too much detect count" default 0xC8 depends on LOG_TOO_MUCH_WARNING config LOG_TOO_MUCH_DETECT_GAP hex "detect log too much delay time" default 30 depends on LOG_TOO_MUCH_WARNING config MTK_PRINTK_DEBUG bool "Just for MTK to debug info" help MTK_PRINTK_DEBUG is used for debugging instead of gki. First, it adds process name in log info. Second, when one cpu exec console_unlock and log is too much, it may be writing to console for long time. This may Trigger HWT. We should better detect the duration in console. When the duration is over criteria, it will Report DB.