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How to add more memory?

To: <>
Subject: How to add more memory?
From: "Nils Larson" <>
Date: Wed, 21 Jan 2004 15:58:24 -0600
Original-recipient: rfc822;
Thread-index: AcPgagduokXno7WkRMilFLIIHpgaow==
Thread-topic: How to add more memory?
We currently have a mips platform running Linux with 256MB of
RAM starting at 0x8000_0000. We would like to add an additional
1GB of RAM, maybe starting at 0x4000_0000, that would be used
for user apps (user virtual memory). The memory map is:
0x8000_0000 - 256MB RAM
0xA000_0000 - uncached version of the same 256MB
0xB000_0000 - PCI memory windows.
This is a diskless setup booting from a ramdisk.
So, the (sort of newbie) questions are:
1. How do we tell Linux to use the new memory?
2. Is this feasible?
3. Is there a better way to add more memory?
We need more space for user data.

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