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Date: Fri, 18 Aug 2006 23:52:47 -0700 (PDT)
From: Parav Pandit <paravpandit@yahoo.com>
Subject: ioremap() twice on same memory mapped area?
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Hi,
   
  I have memory mapped device and two device drivers wants to use the same area for different external device.
  To access the same space there is a global spin lock to avoid any race condition.
   
  Question is:
  Can both the driver call the ioremap() on the same space and get the different virtual address? or ioremap() should fail?
   
  Regards,
  Parav Pandit
   

 		
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<div>Hi,</div>  <div>&nbsp;</div>  <div>I have memory mapped device and two device drivers wants to use the same area for different external device.</div>  <div>To access the same space there is a global spin lock to avoid any race condition.</div>  <div>&nbsp;</div>  <div>Question is:</div>  <div>Can both the driver call the ioremap() on the same space and get the different virtual address? or ioremap() should fail?</div>  <div>&nbsp;</div>  <div>Regards,</div>  <div>Parav Pandit</div>  <div>&nbsp;</div><p>&#32;
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