From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: vagabon.xyz@gmail.com, linux-mips@linux-mips.org
Subject: Re: Is _do_IRQ() not needed anymore ?
Date: Fri, 01 Dec 2006 18:29:17 +0300 [thread overview]
Message-ID: <45704A4D.9050303@ru.mvista.com> (raw)
In-Reply-To: <20061202.002214.51866784.anemo@mba.ocn.ne.jp>
Hello.
Atsushi Nemoto wrote:
>>>You can use both irq_cpu and i8259 same time. :)
>> What's wrong with 8259 I wonder? It's happily converted to genirq by other
>>arches...
> Indeed. I missed other arch's i8259.c had changed. Maybe we should
> update i8259.c entirely.
The question is what flow to use: level/edge ones used in x86 code and
actually intended for simplistic controllers, not the likes of 8259 OR the
"fasteoi" one used in PowerPC code and (as it turned out in my earlier
discussion in linuxppc-dev) intended for the controllers that are smart enough
to mask off the lower-priority IRQs when getting the top level one
acknowledged and unmask them upon EOI command...
> ---
> Atsushi Nemoto
WBR, Sergei
next prev parent reply other threads:[~2006-12-01 15:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-01 9:40 Is _do_IRQ() not needed anymore ? Franck Bui-Huu
2006-12-01 9:57 ` Atsushi Nemoto
2006-12-01 10:06 ` Franck Bui-Huu
2006-12-01 10:10 ` Atsushi Nemoto
2006-12-01 10:19 ` Franck Bui-Huu
2006-12-01 10:41 ` Atsushi Nemoto
2006-12-01 11:03 ` Franck Bui-Huu
2006-12-01 11:12 ` Franck Bui-Huu
2006-12-01 11:12 ` Atsushi Nemoto
2006-12-01 15:08 ` Sergei Shtylyov
2006-12-01 15:22 ` Atsushi Nemoto
2006-12-01 15:29 ` Sergei Shtylyov [this message]
2006-12-01 15:34 ` Sergei Shtylyov
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