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From: Lee Howard <faxguy@howardsilvan.com>
To: Shaohua Li <shaohua.li@intel.com>
Cc: linux-acpi@vger.kernel.org
Subject: Re: controlling ACPI IRQ routing
Date: Thu, 27 Dec 2007 21:29:28 -0800	[thread overview]
Message-ID: <477489B8.20700@howardsilvan.com> (raw)
In-Reply-To: <1198814721.20418.3.camel@sli10-desk.sh.intel.com>

Shaohua Li wrote:
> In IOAPIC mode, interrupt priority isn't related with the pin (in your
> case, irq 16 or 19), but the vector of the pin. How vector of a pin is
> allocated is quite random. Usually driver who calls pci_enable_device
> earier will get a lower priority vector.

You used the words "random" and "usually".  Could you elaborate on the 
randomness and when usually doesn't apply?

So the means to prioritize a driver is to see that it gets installed 
earlier?  There is no other mechanism to "reserve" pin vector 
allocations for a specific device or driver?

Thanks,

Lee.

  reply	other threads:[~2007-12-28  5:29 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-27 22:00 controlling ACPI IRQ routing Lee Howard
2007-12-28  4:05 ` Shaohua Li
2007-12-28  5:29   ` Lee Howard [this message]
2007-12-28  6:06     ` Shaohua Li
2007-12-29  8:39       ` Len Brown
2007-12-29 18:40         ` Lee Howard
2008-01-02 14:11           ` Dominique Michel
2008-01-05  5:51             ` Len Brown
2008-01-06 16:38               ` Lee Howard
2008-01-08 16:49                 ` Chuck Ebbert
2008-01-03  0:04       ` Lee Howard
2008-01-05  5:48         ` Len Brown
2008-01-02 23:59   ` Lee Howard

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