Re: HPET cputimer

[Sepherosa Ziehau <sepherosa@xxxxxxxxx>]

On Thu, Apr 30, 2009 at 6:32 PM, Hasso Tepper <hasso@estpak.ee> wrote:
> Sepherosa Ziehau wrote:
>> HPET cputimer is committed to HEAD.  I suggest to try it out on your
>> boxes running HEAD, if 'acpidump -d | grep HPET' shows that you have
>> HPET device.
>
> On two of my machines HPET seems to work fine, but not on my desktop. HPET
> device section looks like this:
>
> Device (HPET)
> {
>    Name (_HID, EisaId ("PNP0103"))

I am not an expert of ACPI stuffs, but two of my boxes have following
section in HPET table:

                    Name (CRS, ResourceTemplate ()
                    {
                        Memory32Fixed (ReadOnly,
                            0xFED00000,         // Address Base
                            0x00000400,         // Address Length
                            _Y1C)
                    })

Looks like yours doesn't have the "resource template".  May be BIOS
disabled it by default?

YONETANI san is cc'd.

Best Regards,
sephe

>    Method (_STA, 0, NotSerialized)
>    {
>        If (W98F)
>        {
>            Return (0x00)
>        }
>        Else
>        {
>            If (LAnd (\WNTF, LNot (\WXPF)))
>            {
>                Return (0x00)
>            }
>            Else
>            {
>                Return (0x0F)
>            }
>        }
>
>        Return (0x00)
>    }
> }
>
>
> thanks,
>
> --
> Hasso Tepper
>



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