a68555f48d
The previous code does a full flush of the uart after every character. Unfortunately, this can cause transmission delays on some serial ports. This patch changes the code so that it does a flush at the end of every printk instead of at the end of every character. This reduces the time it takes to transmit serial messages (up to 9% on my Asrock e350m1 board). It also makes the transmission time more consistent which is important when performing timing tests via serial transmissions. Change-Id: I6b28488b905da68c6d68d7c517cc743cde567d70 Signed-off-by: Kevin O'Connor <kevin@koconnor.net> Reviewed-on: http://review.coreboot.org/90 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-by: Sven Schnelle <svens@stackframe.org> |
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| .. | ||
| Kconfig | ||
| Makefile.inc | ||
| console.c | ||
| die.c | ||
| logbuf_console.c | ||
| ne2k_console.c | ||
| post.c | ||
| printk.c | ||
| uart8250_console.c | ||
| uart8250mem_console.c | ||
| usbdebug_console.c | ||
| vsprintf.c | ||
| vtxprintf.c | ||