linux-kernel - Re: [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use irq_alloc

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Message-Id: <20120419184238.4A6973E0700@localhost>
Date:	Thu, 19 Apr 2012 12:42:38 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Andreas Schwab <schwab@...ux-m68k.org>,
	Milton Miller <miltonm@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linuxppc-dev@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead

On Thu, 12 Apr 2012 07:37:28 +1000, Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:
> On Wed, 2012-04-11 at 14:57 -0600, Grant Likely wrote:
> > 
> > Yeah, I've got a different way to fix it though.  There is exactly one
> > user of irq_virq_count in-tree right now: PS3.  Also, irq_virq_count
> > is only useful for the NOMAP mapping.  So, instead of having a single
> > global irq_virq_count values, I've dropped it entirely and added a
> > max_irq argument to irq_domain_add_nomap().  That makes it a property
> > of an individual nomap irq domain instead of a global system settting.
> > 
> > Hopefully I'll have a draft patch ready today. 
> 
> That works for me. I'll send patches for cleanup MPIC as well.

Okay, I'll wait on these.  The MPIC fixes will need to be applied
before I can apply the automatic revmapping and hint removal patches.
Those patches will also need testing before I apply to linux-next.

g.
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