From 55d04dff0fcf5d1c3f0d6edf6df86d82fa4c053b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 13 Jul 2005 19:22:45 +0000 Subject: [PATCH] New kernel option nowait allows disabling the use of the wait instruction. Signed-off-by: Ralf Baechle --- arch/mips/kernel/cpu-probe.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index e40bd6fccea5..53e4496de6b6 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -71,11 +71,27 @@ static void au1k_wait(void) : : "r" (au1k_wait)); } +static int __initdata nowait = 0; + +int __init wait_disable(char *s) +{ + nowait = 1; + + return 1; +} + +__setup("nowait", wait_disable); + static inline void check_wait(void) { struct cpuinfo_mips *c = ¤t_cpu_data; printk("Checking for 'wait' instruction... "); + if (nowait) { + printk (" disabled.\n"); + return; + } + switch (c->cputype) { case CPU_R3081: case CPU_R3081E: -- GitLab