linux-kernel - Re: [PATCH v11 05/15] HMM: introduce heterogeneous memory management v5.

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Message-ID: <5627F31B.8060502@infradead.org>
Date:	Wed, 21 Oct 2015 13:18:35 -0700
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Jérôme Glisse <jglisse@...hat.com>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>, joro@...tes.org,
	Mel Gorman <mgorman@...e.de>, "H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Johannes Weiner <jweiner@...hat.com>,
	Larry Woodman <lwoodman@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Dave Airlie <airlied@...hat.com>,
	Brendan Conoboy <blc@...hat.com>,
	Joe Donohue <jdonohue@...hat.com>,
	Christophe Harle <charle@...dia.com>,
	Duncan Poole <dpoole@...dia.com>,
	Sherry Cheung <SCheung@...dia.com>,
	Subhash Gutti <sgutti@...dia.com>,
	John Hubbard <jhubbard@...dia.com>,
	Mark Hairgrove <mhairgrove@...dia.com>,
	Lucien Dunning <ldunning@...dia.com>,
	Cameron Buschardt <cabuschardt@...dia.com>,
	Arvind Gopalakrishnan <arvindg@...dia.com>,
	Haggai Eran <haggaie@...lanox.com>,
	Shachar Raindel <raindel@...lanox.com>,
	Liran Liss <liranl@...lanox.com>,
	Roland Dreier <roland@...estorage.com>,
	Ben Sander <ben.sander@....com>,
	Greg Stoner <Greg.Stoner@....com>,
	John Bridgman <John.Bridgman@....com>,
	Michael Mantor <Michael.Mantor@....com>,
	Paul Blinzer <Paul.Blinzer@....com>,
	Leonid Shamis <Leonid.Shamis@....com>,
	Laurent Morichetti <Laurent.Morichetti@....com>,
	Alexander Deucher <Alexander.Deucher@....com>,
	Jatin Kumar <jakumar@...dia.com>
Subject: Re: [PATCH v11 05/15] HMM: introduce heterogeneous memory management
 v5.

On 10/21/15 14:00, Jérôme Glisse wrote:

> diff --git a/mm/Kconfig b/mm/Kconfig
> index 0d9fdcd..10ed2de 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -680,3 +680,15 @@ config ZONE_DEVICE
>  
>  config FRAME_VECTOR
>  	bool
> +
> +config HMM
> +	bool "Enable heterogeneous memory management (HMM)"
> +	depends on MMU
> +	select MMU_NOTIFIER
> +	default n
> +	help
> +	  Heterogeneous memory management provide infrastructure for a device

	                                  provides

> +	  to mirror a process address space into an hardware mmu or into any

	                                    into a hardware MMU

> +	  things supporting pagefault like event.
> +
> +	  If unsure, say N to disable hmm.

	                              HMM.


-- 
~Randy
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