From: Dave Jones <davej@redhat.com>
To: Bruno Ducrot <ducrot@poupinou.org>
Cc: cpufreq@www.linux.org.uk
Subject: Re: [PATCH][powernow-k7] correcting SGTC. Timer is based upon FSB.
Date: Wed, 14 Apr 2004 18:44:07 +0100 [thread overview]
Message-ID: <20040414174407.GL24970@redhat.com> (raw)
In-Reply-To: <20040414121857.GC8953@poupinou.org>
On Wed, Apr 14, 2004 at 02:18:57PM +0200, Bruno Ducrot wrote:
> I actually wanted to submit also the ACPI integration...
I just tried this out on my Compaq Evo 1015. It has working
PST, so just uses that. I got curious though, and hardwired it
to fall back to the ACPI method. This is what it comes out with on
PST..
powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
powernow: FSB: 132.525 MHz
powernow: Found PSB header at 020f0800
powernow: Table version: 0x12
powernow: Flags: 0x0 (Mobile voltage regulator)
powernow: Settling Time: 100 microseconds.
powernow: Has 31 PST tables. (Only dumping ones relevant to this CPU).
powernow: PST:26 (@020f09c2)
powernow: cpuid: 0x780 fsb: 133 maxFID: 0xf startvid: 0x9
powernow: FID: 0x12 (4.0x [530MHz]) VID: 0x13 (1.200V)
powernow: FID: 0x4 (5.0x [662MHz]) VID: 0x13 (1.200V)
powernow: FID: 0x6 (6.0x [795MHz]) VID: 0x13 (1.200V)
powernow: FID: 0xa (8.0x [1060MHz]) VID: 0xd (1.350V)
powernow: FID: 0xf (10.5x [1391MHz]) VID: 0x9 (1.550V)
powernow: SGTC: 13333
powernow: Minimum speed 530 MHz. Maximum speed 1391 MHz.
And with the hardwired acpi fallback..
powernow: Trying ACPI perflib
powernow: acpi: P0: 1400 MHz, 35000 mW, 125 uS, control 009c412f, status 0000012f, vid: 09 fid: 0f SGTC: 10000
powernow: FID: 0xf (10.5x [13913MHz]) VID: 0x9 (1.550V)
powernow: acpi: P1: 1100 MHz, 15487 mW, 125 uS, control 009c41aa, status 000001aa, vid: 0d fid: 0a SGTC: 10000
powernow: FID: 0xa (8.0x [10600MHz]) VID: 0xd (1.350V)
powernow: acpi: P2: 800 MHz, 12310 mW, 125 uS, control 009c4266, status 00000266, vid: 13 fid: 06 SGTC: 10000
powernow: FID: 0x6 (6.0x [7950MHz]) VID: 0x13 (1.200V)
powernow: acpi: P3: 660 MHz, 12310 mW, 125 uS, control 009c4264, status 00000264, vid: 13 fid: 04 SGTC: 10000
powernow: FID: 0x4 (5.0x [6625MHz]) VID: 0x13 (1.200V)
powernow: acpi: P4: 530 MHz, 10258 mW, 125 uS, control 009c4272, status 00000272, vid: 13 fid: 12 SGTC: 10000
powernow: FID: 0x12 (4.0x [5300MHz]) VID: 0x13 (1.200V)
powernow: Minimum speed 530 MHz. Maximum speed 13913 MHz.
Maximum speed seems off by a factor of 10.
Formatting of that debug info could also probably be cleaned up a little,
as its very wide. How do you feel about adding a module_param to force
fallback, so we can get a few more people testing it too ?
Dave
next prev parent reply other threads:[~2004-04-14 17:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-14 10:36 [PATCH][powernow-k7] correcting SGTC. Timer is based upon FSB Bruno Ducrot
2004-04-14 10:41 ` Dave Jones
2004-04-14 12:18 ` Bruno Ducrot
2004-04-14 12:23 ` Dave Jones
2004-04-14 12:47 ` Bruno Ducrot
2004-04-14 13:28 ` Bruno Ducrot
2004-04-14 13:31 ` Dave Jones
2004-04-14 13:52 ` Bruno Ducrot
2004-04-14 17:44 ` Dave Jones [this message]
2004-04-14 18:48 ` Dominik Brodowski
2004-04-14 18:58 ` Bruno Ducrot
2004-04-14 19:19 ` Dominik Brodowski
2004-04-15 8:45 ` Bruno Ducrot
2004-04-14 19:02 ` Dominik Brodowski
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