linux-kernel - Re: [PATCH] Allow HPET force enable on ICH10 HPET

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Message-ID: <20081218073304.GA2110@ucw.cz>
Date:	Thu, 18 Dec 2008 08:33:04 +0100
From:	Pavel Machek <pavel@...e.cz>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Allow HPET force enable on ICH10 HPET

On Tue 2008-12-16 02:35:47, Andi Kleen wrote:
> Allow HPET force enable on ICH10 HPET
> 
> Intel "Smackover" x58 BIOS don't have HPET enabled in the BIOS, so allow
> to force enable it at least. The register layout is the same
> as in other recent ICHs, so all the code can be reused.
> 
> Using numerical PCI-ID because it's unlikely the PCI-ID will be used
> anywhere else.
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Why not fix it properly... in the BIOS?

> @@ -170,7 +170,8 @@
>  			 ich_force_enable_hpet);
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7,
>  			 ich_force_enable_hpet);
> -
> +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x3a16,	/* ICH10 */
> +			 ich_force_enable_hpet);
>  
>  static struct pci_dev *cached_dev;


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