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Date: Mon, 16 Jul 2007 19:29:59 +0530
From: "suresh suresh" <sureshtang@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: Kmalloc returns which address
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Hi,

I am porting MPC8280 driver from vxWorks to Linux.

I want know the address return by kmalloc function? is it physical address
or kernel virtual address.

For Tx and Rx, hardware uses buffers, so I have to allocate buffers and pass
the pointer to hardware. Can I pass the pointer returned kmalloc?  or  I
should convert it into physical address?

If it returns kernel virtual address, then how to convert into physical?

Thanks & Regards-
Suresh

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Hi,<br>
<br>
I am porting MPC8280 driver from vxWorks to Linux.<br>
<br>
I want know the address return by kmalloc function? is it physical address or kernel virtual address.<br>
<br>
For Tx and Rx, hardware uses buffers, so I have to allocate buffers and
pass the pointer to hardware. Can I pass the pointer returned
kmalloc?&nbsp; or&nbsp; I should convert it into physical address? <br>
<br>
If it returns kernel virtual address, then how to convert into physical?<br>
<br>
Thanks &amp; Regards-<br>
Suresh<br>

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