linux-kernel - usage of memory reserved at boot time

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Message-ID: <4B46DD95.3030704@eve-team.com>
Date:	Fri, 08 Jan 2010 08:24:05 +0100
From:	Frederic Dumoulin <frederic_dumoulin@...-team.com>
To:	linux-kernel@...r.kernel.org
Subject: usage of memory reserved at boot time

Hi,

I need to reserve 64MB of contiguous memory for DMA usage with a PCIe board, I'm using RHEL 5.4 and 2.6.18-164.el5.

I reserved this memory with the option memmap=64M$64M at boot-time.
I'd like to be sure that the reservation was succesful before remapping it in my module with ioremap,
Can I use something like check_mem_region ?

Thanks for your help.

Regards,

Frédéric

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