From: "David S. Miller" <davem@redhat.com>
To: balbir.singh@wipro.com
Cc: James.Bottomley@HansenPartnership.com, jes@sunsite.dk,
linuxopinion@yahoo.com, linux-kernel@vger.kernel.org
Subject: Re: how to get virtual address from dma address
Date: Thu, 04 Oct 2001 04:16:04 -0700 (PDT) [thread overview]
Message-ID: <20011004.041604.13771259.davem@redhat.com> (raw)
In-Reply-To: <3BBC35BC.5020706@wipro.com>
In-Reply-To: <200110032244.f93MiI103485@localhost.localdomain> <20011003.172439.66056954.davem@redhat.com> <3BBC35BC.5020706@wipro.com>
From: "BALBIR SINGH" <balbir.singh@wipro.com>
Date: Thu, 04 Oct 2001 15:41:08 +0530
With Rik's reverse mapping patch, wouldn't we have the virtual address for the given
physical address ? I have no clue about how the patch works, somebody willing to explain
it?
Rik's work is for user process PTEs, we're talking about IOMMU PTEs on
PCI controllers used to map the 32-bit PCI address space to the (often
larger) physical address space of main memory.
These two PTE types are totally unrelated.
Franks a lot,
David S. Miller
davem@redhat.com
next prev parent reply other threads:[~2001-10-04 11:16 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-03 22:44 how to get virtual address from dma address James Bottomley
2001-10-04 0:24 ` David S. Miller
2001-10-04 10:11 ` BALBIR SINGH
2001-10-04 11:16 ` David S. Miller [this message]
2001-10-04 15:37 ` James Bottomley
2001-10-05 14:06 ` Jes Sorensen
2001-10-06 8:06 ` Paul Mackerras
2001-10-06 8:38 ` David S. Miller
2001-10-06 12:18 ` Paul Mackerras
2001-10-06 14:45 ` James Bottomley
2001-10-06 16:51 ` Gérard Roudier
2001-10-06 17:23 ` Jes Sorensen
2001-10-07 2:13 ` Paul Mackerras
2001-10-07 17:40 ` Jes Sorensen
2001-10-07 7:21 ` Gérard Roudier
2001-10-07 16:23 ` James Bottomley
2001-10-07 18:24 ` Gérard Roudier
2001-10-07 23:02 ` James Bottomley
2001-10-08 21:06 ` Gérard Roudier
[not found] ` <mailman.1002371041.9232.linux-kernel2news@redhat.com>
2001-10-06 18:19 ` Pete Zaitcev
[not found] ` <mailman.1002355920.6872.linux-kernel2news@redhat.com>
2001-10-06 18:04 ` Pete Zaitcev
[not found] <Pine.LNX.4.21.0110031525370.14852-100000@pogo.esscom.com>
2001-10-03 21:48 ` Linux Bigot
2001-10-03 22:03 ` Ben Collins
2001-10-05 14:04 ` Jes Sorensen
-- strict thread matches above, loose matches on Subject: below --
2001-10-03 21:30 Manfred Spraul
2001-10-03 16:37 Linux Bigot
2001-10-03 19:32 ` Ben Collins
2001-10-03 21:11 ` Linux Bigot
2001-10-03 21:23 ` Ben Collins
2001-10-03 14:11 Linux Bigot
2001-10-03 15:25 ` Jes Sorensen
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