linux-kernel - Re: [PATCH]intel-iommu batched iotlb flushes

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Date:	Tue, 12 Feb 2008 12:21:08 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	mgross@...ux.intel.com
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH]intel-iommu batched iotlb flushes

> Index: linux-2.6.24-mm1/Documentation/kernel-parameters.txt
> ===================================================================
> --- linux-2.6.24-mm1.orig/Documentation/kernel-parameters.txt	2008-02-12 07:12:06.000000000 -0800
> +++ linux-2.6.24-mm1/Documentation/kernel-parameters.txt	2008-02-12 11:36:07.000000000 -0800
> @@ -822,6 +822,10 @@
>  			than 32 bit addressing. The default is to look
>  			for translation below 32 bit and if not available
>  			then look in the higher range.
> +		strict [Default Off]
> +			With this option on every umap_signle operation will

	umap_signle ???  (again)

> +			result in a hardware IOTLB flush operation as opposed
> +			to batching them for performance.
>  
>  	io_delay=	[X86-32,X86-64] I/O delay method
>  		0x80


-- 
~Randy
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