linux-kernel - Re: [PATCH V15 00/11] x86: Intel Cache Allocation Technology Support

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Message-ID: <20151013213125.GA16200@amt.cnet>
Date:	Tue, 13 Oct 2015 18:31:27 -0300
From:	Marcelo Tosatti <mtosatti@...hat.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Fenghua Yu <fenghua.yu@...el.com>, H Peter Anvin <hpa@...or.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	x86 <x86@...nel.org>,
	Vikas Shivappa <vikas.shivappa@...ux.intel.com>
Subject: Re: [PATCH V15 00/11] x86: Intel Cache Allocation Technology Support

On Sun, Oct 11, 2015 at 09:50:12PM +0200, Thomas Gleixner wrote:
> Fenghua,
> 
> On Thu, 1 Oct 2015, Fenghua Yu wrote:
> 
> +Cc: Marcelo
> 
> > This series has some preparatory patches and Intel cache allocation
> > support.
> 
> <snip>
> 
> > Changes in v15:
> >  - Add a global IPI to update the closid on CPUs for current tasks.
> >  - Other minor changes where I remove the updating of clos_cbm_table to be
> >  set to all 1s during init.
> >  - Fix a few compilation warnings.
> >  - Port the patches to 4.3-rc.
>  
> What's the state of the interface discussion? I have not yet seen any
> agreement on that, unless I missed the important mail.
> 
> Aside of that, the patches miss a proper
> 
> From: Vikas ...
> 
> in the patch body at least for those which are untouched by you.
> 
> Thanks,
> 
> 	tglx

There are a number of problems with the patches as discussed in the
thread.

I am rewriting the interface with ioctls, with commands similar to the
syscall interface proposed.


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