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From: Thomas Gleixner <tglx@linutronix.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>,
	Andreas Schwab <schwab@linux-m68k.org>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	devicetree-discuss@lists.ozlabs.org,
	linux-kernel@vger.kernel.org,
	Rob Herring <rob.herring@calxeda.com>,
	Milton Miller <miltonm@bga.com>,
	linuxppc-dev@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead
Date: Wed, 11 Apr 2012 23:47:25 +0200 (CEST)	[thread overview]
Message-ID: <alpine.LFD.2.02.1204112347040.2542@ionos> (raw)
In-Reply-To: <1334180248.2984.39.camel@pasglop>


On Thu, 12 Apr 2012, Benjamin Herrenschmidt 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.
> 
> One thing tho (Thomas, Russell) is that I like using set_irq_trigger to
> establish the "defaults" in mpic, ie, it does the descriptor locking
> etc... for me, I'd rather avoid open coding all of that. What I need is
> a "variant" that doesn't actually change the trigger but instead
> initializes the irq_desc with whatever settings the HW currently has
> (ie, I need to make sure things are properly in sync) though other
> implementations may want to use that for defaults.
> 
> Any objection to defining something like IRQ_TYPE_DEFAULT ?
> 
> I was thinking about making it equal to IRQ_TYPE_SENSE_MASK since that
> can obviously not be a valid trigger value and is distinct from
> IRQ_TYPE_NONE.

No objections.

  reply	other threads:[~2012-04-11 21:47 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-16  9:09 [PATCH v5 00/27] irq_domain generalization and rework Grant Likely
2012-02-16  9:09 ` [PATCH v5 01/27] irq_domain: add documentation and MAINTAINERS entry Grant Likely
2012-02-16  9:09 ` [PATCH v5 02/27] irq_domain: Be less verbose Grant Likely
2012-02-16  9:09 ` [PATCH v5 03/27] irq_domain: Make irq_domain structure match powerpc's irq_host Grant Likely
2012-02-16  9:09 ` [PATCH v5 04/27] irq_domain: convert microblaze from irq_host to irq_domain Grant Likely
2012-02-16  9:09 ` [PATCH v5 05/27] irq_domain/powerpc: Use common irq_domain structure instead of irq_host Grant Likely
2012-02-16  9:09 ` [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead Grant Likely
2012-04-01 21:27   ` Andreas Schwab
2012-04-02  4:21     ` Benjamin Herrenschmidt
2012-04-02 16:29     ` Andreas Schwab
2012-04-02 20:28       ` Grant Likely
2012-04-02 21:55         ` Russell King - ARM Linux
2012-04-02 22:33           ` Benjamin Herrenschmidt
2012-04-02 22:52             ` Russell King - ARM Linux
2012-04-02 23:38               ` Benjamin Herrenschmidt
2012-04-06 11:51                 ` Andreas Schwab
2012-04-06 23:37                   ` Benjamin Herrenschmidt
2012-04-07 12:27                     ` Andreas Schwab
2012-04-11  1:13                       ` Benjamin Herrenschmidt
2012-04-11  1:33                         ` Benjamin Herrenschmidt
2012-04-11  5:29                           ` Benjamin Herrenschmidt
2012-04-11 20:57                             ` Grant Likely
2012-04-11 21:37                               ` Benjamin Herrenschmidt
2012-04-11 21:47                                 ` Thomas Gleixner [this message]
2012-04-19 18:42                                 ` Grant Likely
2012-04-03  8:23               ` Thomas Gleixner
2012-04-03  8:20             ` Thomas Gleixner
2012-04-03 12:11         ` Andreas Schwab
2012-04-03 21:43           ` Benjamin Herrenschmidt
2012-04-04 12:51             ` Andreas Schwab
2012-04-04 15:40           ` Grant Likely
2012-04-05 10:51             ` Andreas Schwab
2012-04-06 11:12               ` Thomas Gleixner
2012-04-05 22:10             ` Andreas Schwab
2012-04-06 11:17               ` Thomas Gleixner
2012-04-06 11:25                 ` Andreas Schwab
2012-04-06 11:28                   ` Thomas Gleixner
2012-04-07  1:29                 ` Grant Likely
2012-04-02 20:52       ` Thomas Gleixner
2012-04-02 21:20         ` Benjamin Herrenschmidt
2012-04-02 21:27           ` Thomas Gleixner
2012-04-02 22:32             ` Benjamin Herrenschmidt
2012-04-02 21:22         ` Andreas Schwab
2012-04-03  0:37       ` Benjamin Herrenschmidt
2012-02-16  9:09 ` [PATCH v5 07/27] irq_domain/powerpc: Eliminate virq_is_host() Grant Likely
2012-02-16  9:09 ` [PATCH v5 08/27] irq_domain: Move irq_domain code from powerpc to kernel/irq Grant Likely
2012-02-16 13:23   ` Grant Likely
2012-02-16 17:38   ` Cousson, Benoit
2012-02-16 17:52     ` Cousson, Benoit
2012-02-16  9:09 ` [PATCH v5 09/27] irq_domain: remove NO_IRQ from irq domain code Grant Likely
2012-02-16  9:09 ` [PATCH v5 10/27] irq_domain: Remove references to old irq_host names Grant Likely
2012-02-16  9:09 ` [PATCH v5 11/27] irq_domain: Replace irq_alloc_host() with revmap-specific initializers Grant Likely
2012-02-16  9:09 ` [PATCH v5 12/27] irq_domain: Add support for base irq and hwirq in legacy mappings Grant Likely
2012-02-16  9:09 ` [PATCH v5 13/27] of/address: add empty static inlines for !CONFIG_OF Grant Likely
2012-02-16  9:09 ` [PATCH v5 14/27] mfd: twl-core.c: Fix the number of interrupts managed by twl4030 Grant Likely
2012-02-16  9:09 ` [PATCH v5 15/27] irq_domain: Remove 'new' irq_domain in favour of the ppc one Grant Likely
2012-02-16  9:09 ` [PATCH v5 16/27] irq_domain: Remove irq_domain_add_simple() Grant Likely
2012-02-16  9:09 ` [PATCH v5 17/27] irq_domain: Create common xlate functions that device drivers can use Grant Likely
2012-02-16  9:09 ` [PATCH v5 18/27] irq_domain: constify irq_domain_ops Grant Likely
2012-02-16  9:09 ` [PATCH v5 19/27] irq_domain/c6x: Convert c6x to use generic irq_domain support Grant Likely
2012-02-16  9:09 ` [PATCH v5 20/27] irq_domain/c6x: constify irq_domain structures Grant Likely
2012-02-21 15:47   ` Mark Salter
2012-02-16  9:09 ` [PATCH v5 21/27] irq_domain/c6x: Use library of xlate functions Grant Likely
2012-02-21 15:48   ` Mark Salter
2012-02-16  9:09 ` [PATCH v5 22/27] irq_domain/powerpc: constify irq_domain_ops Grant Likely
2012-02-16  9:09 ` [PATCH v5 23/27] irq_domain/powerpc: Replace custom xlate functions with library functions Grant Likely
2012-02-16  9:09 ` [PATCH v5 24/27] irq_domain/microblaze: Convert microblaze to use irq_domains Grant Likely
2012-02-16  9:09 ` [PATCH v5 25/27] irq_domain: remove "hint" when allocating irq numbers Grant Likely
2012-02-16  9:09 ` [PATCH v5 26/27] irq_domain: mostly eliminate slow-path revmap lookups Grant Likely
2012-02-16  9:09 ` [PATCH v5 27/27] irq_domain: For NOMAP revmap, allow users to specify the largest usable virq Grant Likely
2012-02-16 22:52 ` [PATCH v5 00/27] irq_domain generalization and rework Andrew Morton
2012-02-16 23:26   ` Russell King - ARM Linux
2012-02-17 18:05     ` Sam Ravnborg
2012-02-17 17:42   ` Cousson, Benoit
2012-02-17 17:55     ` Russell King - ARM Linux
2012-02-21 14:51       ` Cousson, Benoit

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