linux-kernel - Re: [PATCH] Physical Memory Management [0/1]

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Message-ID: <87skj7pjig.fsf@basil.nowhere.org>
Date:	Thu, 14 May 2009 21:33:11 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Michaâ Nazarewicz <m.nazarewicz@...sung.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, m.szyprowski@...sung.com,
	kyungmin.park@...sung.com, linux-mm@...ck.org
Subject: Re: [PATCH] Physical Memory Management [0/1]

Michaâ Nazarewicz <m.nazarewicz@...sung.com> writes:
>
> The idea here is that there are n hardware accelerators, each
> can operate on 1MiB blocks (to simplify assume that's the case).

You could just define a hugepage size for that and use hugetlbfs
with a few changes to map in pages with multiple PTEs.
It supports boot time reservation and is a well established
interface.

On x86 that would give 2MB units, on other architectures whatever
you prefer.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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