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From: fc scsi <scsi_fc_group@yahoo.com>
To: linux-kernel@vger.kernel.org
Cc: scsi_fc_group@yahoo.com
Subject: _PAGE_PCD bit in DMAable memory
Date: Sun, 16 May 2004 18:12:57 -0700 (PDT)	[thread overview]
Message-ID: <20040517011257.86012.qmail@web50003.mail.yahoo.com> (raw)

Hi,
 
I am trying to get DMAable memory on i386
(kmalloc(GFP_DMA,)) but seems 
_PAGE_PCD is not set on the pages that i get back the
memory from. Am I 
getting the correct results? If yes, then is it not
that GFP_DMA should 
give me non-cacheable memory (equivalent to setting
_PAGE_PCD along 
with _PAGE_PWT on i386). Can anyone confirm for me
that GFP_DMA will 
*always* give me non-cacheable and contiguous memory.
 
Many thanks in advance.




	
		
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             reply	other threads:[~2004-05-17  1:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-17  1:12 fc scsi [this message]
2004-05-17  2:20 ` Roland Dreier
2004-05-17 15:48   ` fc scsi
     [not found] <20040518190319.95305.qmail@web50004.mail.yahoo.com>
2004-05-18 20:29 ` Ingo Oeser

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