From: Marc Zyngier <marc.zyngier@arm.com>
To: Sricharan R <r.sricharan@ti.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linus.walleij@linaro.org" <linus.walleij@linaro.org>,
"santosh.shilimkar@ti.com" <santosh.shilimkar@ti.com>,
"linux@arm.linux.org.uk" <linux@arm.linux.org.uk>,
"tony@atomide.com" <tony@atomide.com>,
"rnayak@ti.com" <rnayak@ti.com>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
Mark Rutland <Mark.Rutland@arm.com>
Subject: Re: [RFC PATCH 1/6] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs
Date: Mon, 30 Sep 2013 15:16:03 +0100 [thread overview]
Message-ID: <524987A3.4090204@arm.com> (raw)
In-Reply-To: <1380549564-31045-2-git-send-email-r.sricharan@ti.com>
On 30/09/13 14:59, Sricharan R wrote:
> In some socs the gic can be preceded by a crossbar IP which
> routes the peripheral interrupts to the gic inputs. The peripheral
> interrupts are associated with a fixed crossbar input line and the
> crossbar routes that to one of the free gic input line.
>
> The DT entries for peripherals provides the fixed crossbar input line
> as its interrupt number and the mapping code should associate this with
> a free gic input line. This patch adds the support inside the gic irqchip
> to handle such routable irqs. The routable irqs are registered in a linear
> domain. The registered routable domain's callback should be implemented
> to get a free irq and to configure the IP to route it.
Isn't this just another chained interrupt controller? How is it GIC
specific?
M.
--
Jazz is not dead. It just smells funny...
WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 1/6] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs
Date: Mon, 30 Sep 2013 15:16:03 +0100 [thread overview]
Message-ID: <524987A3.4090204@arm.com> (raw)
In-Reply-To: <1380549564-31045-2-git-send-email-r.sricharan@ti.com>
On 30/09/13 14:59, Sricharan R wrote:
> In some socs the gic can be preceded by a crossbar IP which
> routes the peripheral interrupts to the gic inputs. The peripheral
> interrupts are associated with a fixed crossbar input line and the
> crossbar routes that to one of the free gic input line.
>
> The DT entries for peripherals provides the fixed crossbar input line
> as its interrupt number and the mapping code should associate this with
> a free gic input line. This patch adds the support inside the gic irqchip
> to handle such routable irqs. The routable irqs are registered in a linear
> domain. The registered routable domain's callback should be implemented
> to get a free irq and to configure the IP to route it.
Isn't this just another chained interrupt controller? How is it GIC
specific?
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2013-09-30 14:16 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 13:59 [RFC PATCH 0/6] DRIVERS: IRQCHIP: Add support for crossbar IP Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` [RFC PATCH 1/6] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 14:16 ` Marc Zyngier [this message]
2013-09-30 14:16 ` Marc Zyngier
2013-09-30 14:22 ` Santosh Shilimkar
2013-09-30 14:22 ` Santosh Shilimkar
2013-09-30 14:28 ` Marc Zyngier
2013-09-30 14:28 ` Marc Zyngier
[not found] ` <5249890B.7020906-l0cyMroinI0@public.gmane.org>
2013-09-30 15:00 ` Sricharan R
2013-09-30 15:00 ` Sricharan R
2013-09-30 15:00 ` Sricharan R
2013-10-08 11:23 ` Linus Walleij
2013-10-08 11:23 ` Linus Walleij
2013-10-24 9:12 ` Thomas Gleixner
2013-10-24 9:12 ` Thomas Gleixner
2013-10-24 10:21 ` Sricharan R
2013-10-24 10:21 ` Sricharan R
2013-10-24 10:21 ` Sricharan R
2013-10-24 9:38 ` Kumar Gala
2013-10-24 9:38 ` Kumar Gala
2013-10-24 9:38 ` Kumar Gala
2013-10-24 10:44 ` Sricharan R
2013-10-24 10:44 ` Sricharan R
2013-10-24 10:44 ` Sricharan R
2013-09-30 13:59 ` [RFC PATCH 2/6] DRIVERS: IRQCHIP: CROSSBAR: Add support for Crossbar IP Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-10-24 9:20 ` Thomas Gleixner
2013-10-24 9:20 ` Thomas Gleixner
2013-10-24 10:21 ` Sricharan R
2013-10-24 10:21 ` Sricharan R
2013-10-24 10:21 ` Sricharan R
2013-10-24 9:33 ` Kumar Gala
2013-10-24 9:33 ` Kumar Gala
2013-10-24 9:33 ` Kumar Gala
2013-10-24 10:43 ` Sricharan R
2013-10-24 10:43 ` Sricharan R
2013-10-24 10:43 ` Sricharan R
2013-10-24 11:00 ` Kumar Gala
2013-10-24 11:00 ` Kumar Gala
2013-10-24 11:00 ` Kumar Gala
2013-09-30 13:59 ` [RFC PATCH 3/6] ARM: DTS: DRA: Add crossbar device binding Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
[not found] ` <1380549564-31045-1-git-send-email-r.sricharan-l0cyMroinI0@public.gmane.org>
2013-09-30 13:59 ` [RFC PATCH 4/6] ARM: DTS: DRA: Replace peripheral interrupt numbers with crossbar inputs Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 14:19 ` [RFC PATCH 0/6] DRIVERS: IRQCHIP: Add support for crossbar IP Santosh Shilimkar
2013-09-30 14:19 ` Santosh Shilimkar
2013-09-30 14:19 ` Santosh Shilimkar
2013-09-30 13:59 ` [RFC PATCH 5/6] ARM: OMAP4+: Correct Wakeup-gen code to use physical irq number Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` [RFC PATCH 6/6] ARM: DRA: Enable Crossbar IP support for DRA7XX Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 13:59 ` Sricharan R
2013-09-30 15:09 ` [RFC PATCH 0/6] DRIVERS: IRQCHIP: Add support for crossbar IP Rob Herring
2013-09-30 15:09 ` Rob Herring
2013-10-01 11:13 ` Sricharan R
2013-10-01 11:13 ` Sricharan R
2013-10-01 11:13 ` Sricharan R
2013-10-01 13:48 ` Rob Herring
2013-10-01 13:48 ` Rob Herring
[not found] ` <524AD290.207-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-10-01 13:57 ` Santosh Shilimkar
2013-10-01 13:57 ` Santosh Shilimkar
2013-10-01 13:57 ` Santosh Shilimkar
2013-10-01 14:53 ` Rob Herring
2013-10-01 14:53 ` Rob Herring
2013-10-01 15:07 ` Santosh Shilimkar
2013-10-01 15:07 ` Santosh Shilimkar
2013-10-01 15:07 ` Santosh Shilimkar
2013-10-15 7:35 ` Sricharan R
2013-10-15 7:35 ` Sricharan R
2013-10-15 7:35 ` Sricharan R
2013-10-24 8:57 ` Thomas Gleixner
2013-10-24 8:57 ` Thomas Gleixner
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