lkml.org 
[lkml]   [2007]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] hpet: Enable hidden HPET on NVidia motherboards
Date
On Sunday 15 April 2007 21:14, Mikko Tiihonen wrote:
> Enables HPET for NVidia motherboards with broken BIOS. The patch reads the
> HPET address from the pci config space. The patch should also work if ACPI
> is disabled.
>
> The HPET search is done in early-quirks because even
> DECLARE_PCI_FIXUP_EARLY was too late. If the new quirk causes problems it
> can be disabled with the nohpet boot option.
>
> The patch assumes that the BIOS has done the basic setup of HPET, but has
> not published the result in ACPI tables. This is at least true for some
> Asus and Gigabyte motherboards.

This works fine on my DFI Lanparty UT nForce4 CK804 mainboard:

alistair@damocles:~$ dmesg | grep hpet
[ 25.677099] hpet0: at MMIO 0xfefff000, IRQs 2, 8, 31
[ 25.677102] hpet0: 3 32-bit timers, 25000000 Hz
[ 25.678799] Time: hpet clocksource has been installed.

I've been wanting hpets for a while, this patch is extremely useful to me.

Unfortunately your patch does not seem to apply with standard tools, perhaps
your mailer corrupted it (I just hand applied it).

Thanks Mikko.

--
Cheers,
Alistair.

Final year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-04-15 23:49    [W:2.428 / U:0.476 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site