From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
Subject: Re: Modpost warning on Alchemy
Date: Thu, 02 Aug 2007 16:53:34 +0400 [thread overview]
Message-ID: <46B1D3CE.6070507@ru.mvista.com> (raw)
In-Reply-To: <Pine.LNX.4.64N.0708021024200.22591@blysk.ds.pg.gda.pl>
Maciej W. Rozycki wrote:
>>> No, I don't. But that was why the original code preferred the wired
>>>entry approach over ioremap() -- not to map a whole range...
>> Not the only one: dynamic ioremap() seems to be impossible in interrupt
>>context.
> Well, ioremap() may sleep indeed.
So, the only viable option of using sofirq() is mapping all the sparce
2KiB regions at the __init time -- that will waste every half of page though...
> How about using a softirq then?
Using softirq for what?
> Broken hardware (=one that requires PCI configuration accesses from the
> IRQ context) is not an excuse to extend the breakage over to software.
That's *at least* impractical argument.
> Maciej
WBR, Sergei
next prev parent reply other threads:[~2007-08-02 12:51 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-01 11:52 Modpost warning on Alchemy Ralf Baechle
2007-08-01 12:23 ` Sergei Shtylyov
2007-08-01 12:53 ` Maciej W. Rozycki
2007-08-01 13:13 ` Sergei Shtylyov
2007-08-01 13:18 ` Sergei Shtylyov
2007-08-01 15:38 ` Maciej W. Rozycki
2007-08-01 15:44 ` Sergei Shtylyov
2007-08-01 16:26 ` Maciej W. Rozycki
2007-08-01 16:37 ` Sergei Shtylyov
2007-08-01 16:54 ` Maciej W. Rozycki
2007-08-01 17:06 ` Sergei Shtylyov
2007-08-02 9:14 ` Maciej W. Rozycki
2007-08-02 12:49 ` Sergei Shtylyov
2007-08-02 13:27 ` Maciej W. Rozycki
2007-08-02 14:15 ` Sergei Shtylyov
2007-08-02 14:33 ` Maciej W. Rozycki
2007-08-01 17:10 ` Alan Cox
2007-08-02 9:24 ` Maciej W. Rozycki
2007-08-01 17:09 ` Sergei Shtylyov
2007-08-02 9:39 ` Maciej W. Rozycki
2007-08-02 10:15 ` Ralf Baechle
2007-08-02 10:17 ` Maciej W. Rozycki
2007-08-02 12:53 ` Sergei Shtylyov [this message]
2007-08-02 13:00 ` Sergei Shtylyov
2007-08-02 13:35 ` Maciej W. Rozycki
2007-08-02 14:10 ` Sergei Shtylyov
2007-08-02 14:21 ` Maciej W. Rozycki
2007-08-01 15:39 ` Alan Cox
2007-08-01 15:49 ` Maciej W. Rozycki
2007-08-01 15:58 ` Alan Cox
2007-08-01 16:00 ` Maciej W. Rozycki
2007-08-01 16:21 ` Ralf Baechle
2007-08-01 16:33 ` Maciej W. Rozycki
2007-08-02 9:25 ` Ralf Baechle
2007-08-02 9:44 ` Maciej W. Rozycki
2007-08-01 16:01 ` Sergei Shtylyov
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