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DMA memory allocation in bootloaders

To: "kernelnewbies" <kernelnewbies@xxxxxxxxxxxx>
Subject: DMA memory allocation in bootloaders
From: "Saumendra Dash" <Saumendra.Dash@xxxxxxxxxxxx>
Date: Wed, 4 Apr 2007 13:05:22 +0530
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Thread-topic: Need for a new spinlock API?


  Hi all,

   I'm working on a bootloader. How the DMA buffers are allocated/managed in a bootloader environment? How the Phys to Bus and Bus to phys memory conversion is done? Is the Physical memory is 1-1 with bus? Any pointer or sample code on memory handling in bootloader will be of great help.

Thanks,
Saumendra Dash

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References:
- Re: Need for a new spinlock API?
  - From: anubhav rakshit

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