linux-kernel - CMA on arm from zero address

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Message-ID: <4F326A4E.1030106@monstr.eu>
Date:	Wed, 08 Feb 2012 13:27:58 +0100
From:	Michal Simek <monstr@...str.eu>
To:	Marek Szyprowski <m.szyprowski@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Russell King <linux@....linux.org.uk>
CC:	Ohad Ben-Cohen <ohad@...ery.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-arm-kernel@...ts.arm.linux.org.uk
Subject: CMA on arm from zero address

Hi,

I would like to setup CMA space at the beginning of ram because
I want to use remoteproc to run code on the second cpu which has to use addresses 0x0 - 32MB.

I have changed textofs in arch/arm/Makefile but there is not possible to setup
all values which I would like to use. What is the reason for this limitation?

Marek: Have you tried to prototype this configuration with cma?

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian
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