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To: "MEHTA,HIREN (A-SanJose,ex1)" <hiren_mehta@agilent.com>
Cc: "'David S. Miller'" <davem@redhat.com>,
        "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>
Subject: Re: (reposting) how to get DMA'able memory within 4GB on 64-bit m achi ne
In-Reply-To: <FEEBE78C8360D411ACFD00D0B7477971880AD5@xsj02.sjs.agilent.com>
From: Jes Sorensen <jes@sunsite.dk>
Date: 28 Jun 2001 21:41:22 +0200
In-Reply-To: "MEHTA,HIREN's message of "Thu, 28 Jun 2001 10:20:46 -0600"
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>>>>> "Hiren" == MEHTA,HIREN (A-SanJose,ex1) <hiren_mehta@agilent.com> writes:

Hiren> Then why do we have 64-bit dma_addr_t on ia64 ?  -hiren

Because on ia64 you will get back a 64 bit pointer if you use
pci_set_dma_mask() to set a 64 bit mask before calling the pci
functions in question.

Jes