linux-kernel - Re: [PATCH 7/8] cpufreq: Add support for x86 cpuinfo auto loading v3

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Date:	Wed, 21 Dec 2011 12:03:25 +0100
From:	Thomas Renninger <trenn@...e.de>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, kay.sievers@....org,
	Andi Kleen <ak@...ux.intel.com>, davej@...hat.com,
	kay.sievers@...y.org
Subject: Re: [PATCH 7/8] cpufreq: Add support for x86 cpuinfo auto loading v3

On Tuesday, December 20, 2011 12:46:33 AM Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> This marks all the x86 cpuinfo tables to the CPU specific device drivers,
> to allow auto loading by udev. This should simplify the distribution
> startup scripts for this greatly.
> 
> I didn't add MODULE_DEVICE_IDs to the centrino and p4-clockmod drivers,
> because those probably shouldn't be auto loaded and the acpi driver
> be used instead (not fully sure on that, would appreciate feedback)
> 
> The old nforce drivers autoload based on the PCI ID.
> 
> ACPI cpufreq is autoloaded in another patch.
> 
> v3: Autoload gx based on PCI IDs only. Remove cpu check (Dave Jones)
> Cc: davej@...hat.com
> Cc: trenn@...e.de
> Cc: kay.sievers@...y.org
> Cc: hpa@...or.com
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
...
> diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
> index bce576d..c87fabb 100644
> --- a/drivers/cpufreq/powernow-k8.c
> +++ b/drivers/cpufreq/powernow-k8.c
> @@ -37,6 +37,7 @@
>  #include <linux/delay.h>
>  
>  #include <asm/msr.h>
> +#include <asm/cpu_device_id.h>
>  
>  #include <linux/acpi.h>
>  #include <linux/mutex.h>
> @@ -514,6 +515,18 @@ static int core_voltage_post_transition(struct powernow_k8_data *data,
>  	return 0;
>  }
>  
> +static const struct x86_cpu_id powernow_k8_ids[] = {
> +	{ X86_VENDOR_AMD, 0xf, },
> +	{ X86_VENDOR_AMD, 0x10, },
> +	{ X86_VENDOR_AMD, 0x11, },
> +	{ X86_VENDOR_AMD, 0x12, },
> +	{ X86_VENDOR_AMD, 0x13, },
> +	{ X86_VENDOR_AMD, 0x14, },
{ X86_VENDOR_AMD, 0x15, },

Should also have BullDozer family included.

> +	/* Add more here? */
> +	{}

    Thomas
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