Does anyone know if the R1x000 family of CPUs support the "wait" instruction? The 'check_wait' function in arch/mips/kernel/idle.c doesn't have a case for any of the R10K CPUs, and I can't find any specific guidance in the final R10K manual produced by Renesas, nor in the MIPS-IV instruction set. It appears this was added in MIPS-II, and the R4K CPUs use it, with one version for when interrupts are enabled, and one where they're disabled. Since a lot of CPUs tend to reuse R4K-compatible code, I wasn't sure. Kinda-assuming it doesn't, since the R10K lacks any notion of reduced power operation. -- Joshua Kinard Gentoo/MIPS kumba@xxxxxxxxxx 6144R/F5C6C943 2015-04-27 177C 1972 1FB8 F254 BAD0 3E72 5C63 F4E3 F5C6 C943 "The past tempts us, the present confuses us, the future frightens us. And our lives slip away, moment by moment, lost in that vast, terrible in-between." --Emperor Turhan, Centauri Republic
