linux-kernel - Re: [PATCH] SGI UV: TLB shootdown extended apic mode

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Date:	Fri, 18 Jul 2008 18:53:36 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Cliff Wickman <cpw@....com>
Cc:	linux-kernel@...r.kernel.org,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: [PATCH] SGI UV: TLB shootdown extended apic mode


* Ingo Molnar <mingo@...e.hu> wrote:

> * Cliff Wickman <cpw@....com> wrote:
> 
> > Set or clear the UV hub's extended apic mode based on the kernel's 
> > setting. This cannot be done safely in the prom, as the kernel may 
> > set the mode.
> > 
> > The kernel's setting of extended apic mode is indicated by global 
> > "x2apic".
> > 
> > Diffed against 2.6.26-rc9 (Ingo's tip-latest)
> 
> applied to tip/x86/uv, thanks Cliff.

fails to build with the attached config:

 arch/x86/kernel/built-in.o: In function `uv_bau_init':
 tlb_uv.c:(.init.text+0x9982): undefined reference to `x2apic'

so i've not applied it yet.

	Ingo

View attachment "config" of type "text/plain" (53188 bytes)