Re: Fwd: [PATCH] s390 (1/7): s390 arch fixes.

From: Pete Zaitcev (zaitcev@redhat.com)
Date: Fri Mar 07 2003 - 18:29:14 EST


> --- linux-2.5.64/arch/s390/kernel/time.c Wed Mar 5 04:28:53 2003
> +++ linux-2.5.64-s390/arch/s390/kernel/time.c Fri Mar 7 11:40:12 2003
> @@ -202,14 +203,14 @@
> unsigned long cr0;
> __u64 timer;
>
> + timer = jiffies_timer_cc + jiffies_64 * CLK_TICKS_PER_JIFFY;
> + S390_lowcore.jiffy_timer = timer;
> + timer += CLK_TICKS_PER_JIFFY + CPU_DEVIATION;
> + asm volatile ("SCKC %0" : : "m" (timer));
> /* allow clock comparator timer interrupt */
> asm volatile ("STCTL 0,0,%0" : "=m" (cr0) : : "memory");
> cr0 |= 0x800;
> asm volatile ("LCTL 0,0,%0" : : "m" (cr0) : "memory");
> - timer = init_timer_cc + jiffies_64 * CLK_TICKS_PER_JIFFY;
> - S390_lowcore.jiffy_timer = timer;
> - timer += CLK_TICKS_PER_JIFFY + CPU_DEVIATION;
> - asm volatile ("SCKC %0" : : "m" (timer));
> }
>
> /*

This is a good fix, I confirm it fixing my booting problem ...
on 2.4! Seriously, I can't believe it worked before.
Please send it to Marcelo, too.

-- Pete
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