From: David Brownell <david-b@pacbell.net>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linus Torvalds <torvalds@osdl.org>, Greg KH <greg@kroah.com>,
Andrew Morton <akpm@osdl.org>,
Linux-USB <linux-usb-devel@lists.sourceforge.net>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [linux-usb-devel] Re: [BK PATCH] USB update for 2.6.3
Date: Fri, 20 Feb 2004 00:08:08 -0800 [thread overview]
Message-ID: <4035C068.8050605@pacbell.net> (raw)
In-Reply-To: <1077258504.20781.1121.camel@gaston>
Benjamin Herrenschmidt wrote:
> Yes. I also remember a time where the dma mask for the DMA API was all
> broken too (would not be possible to map the PCI one on top of it),
> but I think that got fixed.
I thought it was still broken. Last I compared different asm-* arch
implementations of dma_supported(), the semantics were inconsistent.
The "mask" was sometimes ignored, sometimes treated as an upper
bound on the address, once I recall it even being used as a mask!
Some of that inconsistency seemed to come from PCI though.
- Dave
next prev parent reply other threads:[~2004-02-20 8:09 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-20 1:28 [BK PATCH] USB update for 2.6.3 Greg KH
2004-02-20 5:58 ` Linus Torvalds
2004-02-20 6:03 ` Benjamin Herrenschmidt
2004-02-20 6:30 ` Linus Torvalds
2004-02-20 6:28 ` Benjamin Herrenschmidt
2004-02-20 6:47 ` Linus Torvalds
2004-02-20 6:42 ` Benjamin Herrenschmidt
2004-02-20 7:00 ` Greg KH
2004-02-20 7:06 ` Benjamin Herrenschmidt
2004-02-20 7:58 ` [linux-usb-devel] " David Brownell
2004-02-20 7:03 ` Linus Torvalds
2004-02-20 7:04 ` David S. Miller
2004-02-20 7:10 ` Benjamin Herrenschmidt
2004-02-20 7:32 ` David S. Miller
2004-02-20 15:15 ` Linus Torvalds
2004-02-20 18:15 ` Hollis Blanchard
2004-02-20 18:39 ` Linus Torvalds
2004-02-20 19:20 ` Hollis Blanchard
2004-02-20 19:32 ` Linus Torvalds
2004-02-20 22:40 ` [linux-usb-devel] " Benjamin Herrenschmidt
2004-02-20 19:30 ` Alan Stern
2004-02-20 7:08 ` Benjamin Herrenschmidt
2004-02-20 8:08 ` David Brownell [this message]
2004-02-20 9:26 ` Russell King
2004-02-20 7:40 ` Deepak Saxena
2004-02-20 7:47 ` [linux-usb-devel] " Benjamin Herrenschmidt
2004-02-20 8:08 ` Deepak Saxena
2004-02-20 8:43 ` David Brownell
2004-02-20 8:48 ` Benjamin Herrenschmidt
2004-02-20 9:27 ` Russell King
[not found] <fa.d7mjamc.1l40pri@ifi.uio.no>
2004-02-20 6:34 ` Andy Lutomirski
2004-02-20 15:31 ` [linux-usb-devel] " Paulo Marques
[not found] <fa.ck6rcsq.nl8r18@ifi.uio.no>
[not found] ` <fa.eul0v67.1p62arn@ifi.uio.no>
2004-03-04 18:05 ` Andy Lutomirski
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