From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Ishizaki Kou <kou.ishizaki@toshiba.co.jp>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 13/16] add IRQ remapping
Date: Thu, 16 Nov 2006 10:58:52 +1100 [thread overview]
Message-ID: <1163635132.5940.297.camel@localhost.localdomain> (raw)
In-Reply-To: <200611151018.kAFAIb3o028137@toshiba.co.jp>
On Wed, 2006-11-15 at 19:18 +0900, Ishizaki Kou wrote:
> This patch adds irq remapping.
> On interrupt mechanism on Beat, when an irq outlet who has an id
> hich is formerly used is created, remapping the irq is required.
>
> Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
>
> Index: linux-2.6.19/arch/powerpc/kernel/irq.c
> diff -u linux-2.6.19/arch/powerpc/kernel/irq.c:1.1.1.2 linux-2.6.19/arch/powerpc/kernel/irq.c:1.4
> --- linux-2.6.19/arch/powerpc/kernel/irq.c:1.1.1.2 Tue Oct 17 08:40:57 2006
> +++ linux-2.6.19/arch/powerpc/kernel/irq.c Mon Nov 6 22:04:23 2006
> @@ -534,6 +534,8 @@
> */
> virq = irq_find_mapping(host, hwirq);
> if (virq != IRQ_NONE) {
> + if (host->ops->remap)
> + host->ops->remap(host, virq, hwirq);
> pr_debug("irq: -> existing mapping on virq %d\n", virq);
> return virq;
> }
> Index: linux-2.6.19/include/asm-powerpc/irq.h
> diff -u linux-2.6.19/include/asm-powerpc/irq.h:1.1.1.2 linux-2.6.19/include/asm-powerpc/irq.h:1.3
> --- linux-2.6.19/include/asm-powerpc/irq.h:1.1.1.2 Tue Oct 17 08:44:31 2006
> +++ linux-2.6.19/include/asm-powerpc/irq.h Tue Oct 17 13:22:53 2006
> @@ -89,6 +89,9 @@
> /* Dispose of such a mapping */
> void (*unmap)(struct irq_host *h, unsigned int virq);
>
> + /* Update of such a mapping */
> + void (*remap)(struct irq_host *h, unsigned int virq, irq_hw_number_t hw);
> +
> /* Translate device-tree interrupt specifier from raw format coming
> * from the firmware to a irq_hw_number_t (interrupt line number) and
> * type (sense) that can be passed to set_irq_type(). In the absence
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
prev parent reply other threads:[~2006-11-15 23:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-15 10:18 [PATCH 13/16] add IRQ remapping Ishizaki Kou
2006-11-15 23:58 ` Benjamin Herrenschmidt [this message]
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