Re: [XenPPC] [PATCH] Disable DPM until code is audited

[Amos Waterland <apw@xxxxxxxxxx>]

On Sat, Dec 02, 2006 at 10:31:11AM -0500, Jimi Xenidis wrote:
> The following patch results in SMP stability on Maple. Amos,
> Kawachiya-san, could one of you ack it with the JS20 in question?
> 
> @@ -193,10 +193,10 @@ void cpu_initialize(int cpuid)
>      mtdec(timebase_freq);
>      mthdec(timebase_freq);
> -    /* FIXME Do not set the NAP and DPM bits in HID0 until we have had a
> -     * chance to audit the safe halt and idle loop code. */
> +    /* FIXME Do not set the NAP bit in HID0 until we have had a chance
> +     * to audit the safe halt and idle loop code. */
>      hid0.bits.nap = 0;      /* NAP */
> -    hid0.bits.dpm = 0;      /* Dynamic Power Management */
> +    hid0.bits.dpm = 1;      /* Dynamic Power Management */
>      hid0.bits.nhr = 1;      /* Not Hard Reset */
>      hid0.bits.hdice_en = 1; /* enable HDEC */

This works on the JS20 in TRL.

Acked-by: Amos Waterland <apw@xxxxxxxxxx>


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