From: Krzysztof Halasa <khc@pm.waw.pl>
To: Nicolas Mailhot <nicolas.mailhot@laposte.net>
Cc: Mikko Tiihonen <mikko.tiihonen@iki.fi>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] RT kernel: force detect HPET from PCI space
Date: Sat, 31 Mar 2007 12:37:20 +0200 [thread overview]
Message-ID: <m3bqi9u2an.fsf@maximus.localdomain> (raw)
In-Reply-To: <1175294288.32441.6.camel@rousalka.dyndns.org> (Nicolas Mailhot's message of "Sat, 31 Mar 2007 00:38:08 +0200")
Nicolas Mailhot <nicolas.mailhot@laposte.net> writes:
> Oh, is looks so close to my system
>
> 00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3)
> 00: de 10 50 00 0f 00 a0 00 a3 00 01 06 00 00 80 00
> 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 20: 00 00 00 00 00 00 00 00 00 00 00 00 58 14 11 0c
> 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 40: 58 14 11 0c 00 f0 ff fe fa 3e ff 00 fa 3e ff 00
> ^^^^^^^^^^^
> Usual HPET base address
> 50: fa 3e ff 00 00 5a 62 02 00 00 00 01 00 00 ff ff
> 60: 01 10 00 00 01 14 00 00 01 18 00 00 00 00 f9 ff
> 70: 10 00 ff ff c1 00 00 00 00 00 04 19 18 d2 80 0d
> ^^
> c1 => HPET disabled (according to your reference)
>
> I don't have an HPET toggle in my bios
For reference: HPET enabled in BIOS, MSI K9N platinum board:
dmesg | grep HPET
ACPI: HPET (v001 A M I OEMHPET0 0x02000701 MSFT 0x00000097)
@ 0x000000003ffd5480
ACPI: HPET id: 0x10de8201 base: 0xfed00000
time.c: Using 25.000000 MHz WALL HPET GTOD HPET timer.
00:01.0 ISA bridge: nVidia Corporation MCP55 LPC Bridge (rev a2)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7250
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at 2f00 [size=128]
00: de 10 62 03 0f 00 a0 00 a2 00 01 06 00 00 80 00
10: 01 2f 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 62 14 50 72
30: 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 00 00
40: 62 14 50 72 00 00 d0 fe fa 3e ff 00 fa 3e ff 00
^^^^^^^^^^^
Dword at 0x44 indeed seems to be the address
50: fa 3e ff 00 00 5a 62 02 00 00 00 01 00 00 fe 3f
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 ff
70: 10 00 ff ff c5 80 00 00 00 00 45 19 00 c6 40 00
^^
Enabled = consistent with http://lkml.org/lkml/2006/12/17/69
80: 09 20 00 10 1d 08 00 00 f0 00 00 01 f0 00 00 00
90: 00 08 00 00 00 00 00 00 21 47 95 86 ef cd ab 00
a0: 01 00 00 81 00 00 00 00 00 00 00 00 00 00 00 00
^^
Not sure about 0xa3, though.
b0: 00 00 00 00 00 0a 7f 0a 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 44 00 00 fe fd d3 00 a0
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00
--
Krzysztof Halasa
next prev parent reply other threads:[~2007-03-31 10:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-30 22:09 [PATCH 1/5] RT kernel: force detect HPET from PCI space Mikko Tiihonen
2007-03-30 22:38 ` Nicolas Mailhot
2007-03-31 8:00 ` Mikko Tiihonen
2007-03-31 10:37 ` Krzysztof Halasa [this message]
2007-03-31 11:36 ` Nicolas Mailhot
2007-03-31 15:00 ` Mikko Tiihonen
-- strict thread matches above, loose matches on Subject: below --
2007-03-30 16:50 Nicolas Mailhot
2007-03-30 16:59 ` Venki Pallipadi
2007-03-30 17:22 ` Nicolas Mailhot
2007-02-23 1:06 Venkatesh Pallipadi
2007-03-30 9:46 ` Ingo Molnar
2007-03-30 13:36 ` Pallipadi, Venkatesh
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