On 9/28/07, Arnd Bergmann <[EMAIL PROTECTED]> wrote: > On Friday 28 September 2007, Grant Likely wrote: > > +static void uartlite_putc(unsigned char c) > > +{ > > +while ((in_be32(reg_base + 0x8) & 0x08) != 0); /* spin */ > > +out_be32(reg_base + 0x4, c); > > +} > > When coding a spin-loop, it's better to do a cpu_relax() between > each attempt.
Is cpu_relax even implemented in the bootwrapper? g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. [EMAIL PROTECTED] (403) 399-0195 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev