linux-kernel - Re: [PATCH] SGI UV: hardcode the TLB flush interrupt system vector

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Message-ID: <20080820103621.GC2816@elte.hu>
Date:	Wed, 20 Aug 2008 12:36:21 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Cliff Wickman <cpw@....com>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Yinghai Lu <yhlu.kernel@...il.com>
Subject: Re: [PATCH] SGI UV: hardcode the TLB flush interrupt system vector


* Cliff Wickman <cpw@....com> wrote:

> From: Cliff Wickman <cpw@....com>
> 
> The UV TLB shootdown mechanism needs a system interrupt vector.
> 
> Its vector had been hardcoded as 200, but needs to moved to the 
> reserved system vector range so that it does not collide with some 
> device vector.
> 
> This is still temporary until dynamic system IRQ allocation is 
> provided. But it will be needed when real UV hardware becomes 
> available and runs 2.6.27.

applied to tip/x86/urgent, thanks Cliff.

	Ingo
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