From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Michael Bohan <mbohan@codeaurora.org>
Cc: Rob Herring <robherring2@gmail.com>,
Grant Likely <grant.likely@secretlab.ca>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org,
Russell King <linux@arm.linux.org.uk>,
sfr@canb.auug.org.au,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
linux-arm-msm@vger.kernel.org
Subject: Re: [RFC 13/14] irq_domain: Remove 'new' irq_domain in favour of the ppc one
Date: Tue, 17 Jan 2012 14:42:11 +1100 [thread overview]
Message-ID: <1326771731.26116.29.camel@pasglop> (raw)
In-Reply-To: <4F14E05C.30207@codeaurora.org>
On Mon, 2012-01-16 at 18:43 -0800, Michael Bohan wrote:
>
> I was planning on sending these patches out, but it seems like with
> Grant's patches, they may no longer be up to date. I was curious if any
> thought was given to supporting configurations like this the one I
> mentioned with the advent of these patches. I am happy to help test if
> you can steer me in the right direction.
I haven't had a chance to look in detail at what Grant is doing in his
latest series, but the ppc domain scheme that he's basing it on has the
concept of sparse interrupt domains.
For these, we use a radix tree for the reverse map (we do not rely on a
linear range) and we "allocate" linux IRQ numbers on-demand as we create
mapping for individual HW interrupts.
Cheers,
Ben.
next prev parent reply other threads:[~2012-01-17 3:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-11 20:22 [RFC 0/14] Finish up irq_domain generalization Grant Likely
2012-01-11 20:22 ` [RFC 01/14] dt: Make irqdomain less verbose Grant Likely
2012-01-11 20:22 ` [RFC 02/14] irq_domain: Make irq_domain structure match powerpc's irq_host Grant Likely
2012-01-11 20:22 ` [RFC 03/14] irq_domain: convert microblaze from irq_host to irq_domain Grant Likely
2012-01-11 20:22 ` [RFC 04/14] irq_domain/powerpc: Use common irq_domain structure instead of irq_host Grant Likely
2012-01-11 20:22 ` [RFC 05/14] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead Grant Likely
2012-01-11 20:22 ` [RFC 06/14] irq_domain/powerpc: Eliminate virq_is_host() Grant Likely
2012-01-11 20:22 ` [RFC 07/14] irq_domain: Move irq_domain code from powerpc to kernel/irq Grant Likely
2012-01-11 20:22 ` [RFC 08/14] irqdomain: remove NO_IRQ from irq domain code Grant Likely
2012-01-11 20:22 ` [RFC 09/14] irq_domain: Remove references to old irq_host names Grant Likely
2012-01-11 20:22 ` [RFC 10/14] irq_domain: Replace irq_alloc_host() with revmap-specific initializers Grant Likely
2012-01-11 20:22 ` [RFC 11/14] powerpc: Eliminate NO_IRQ usage Grant Likely
2013-07-25 21:58 ` Geert Uytterhoeven
2013-07-26 3:56 ` Grant Likely
2013-08-23 13:18 ` Geert Uytterhoeven
2013-08-23 13:22 ` Geert Uytterhoeven
2012-01-11 20:22 ` [RFC 12/14] irq_domain: Add support for base irq and hwirq in legacy mappings Grant Likely
2012-01-13 0:37 ` Rob Herring
2012-01-13 0:53 ` Grant Likely
2012-01-11 20:22 ` [RFC 13/14] irq_domain: Remove 'new' irq_domain in favour of the ppc one Grant Likely
2012-01-11 21:15 ` Rob Herring
2012-01-11 21:27 ` Grant Likely
2012-01-13 0:31 ` Rob Herring
2012-01-13 0:47 ` Grant Likely
2012-01-13 0:53 ` Rob Herring
2012-01-13 2:20 ` Grant Likely
2012-01-17 2:43 ` Michael Bohan
2012-01-17 3:42 ` Benjamin Herrenschmidt [this message]
2012-01-18 0:28 ` Grant Likely
2012-01-18 2:16 ` Benjamin Herrenschmidt
2012-01-11 20:22 ` [RFC 14/14] irq_domain: Remove irq_domain_add_simple() Grant Likely
2012-01-11 21:39 ` [RFC 0/14] Finish up irq_domain generalization Randy Dunlap
2012-01-11 20:50 ` Grant Likely
2012-01-11 21:23 ` Grant Likely
2012-01-11 22:48 ` Randy Dunlap
2012-01-12 10:17 ` [RFC 06/14] irq_domain/powerpc: Eliminate virq_is_host() Milton Miller
2012-01-18 0:38 ` Grant Likely
2012-01-18 21:25 ` Grant Likely
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