Linux-ARM-Kernel Archive on lore.kernel.org
 help / Atom feed
From: Lokesh Vutla <lokeshvutla@ti.com>
To: <marc.zyngier@arm.com>, Tony Lindgren <tony@atomide.com>,
	Nishanth Menon <nm@ti.com>,
	Santosh Shilimkar <ssantosh@kernel.org>,
	Rob Herring <robh+dt@kernel.org>, <tglx@linutronix.de>,
	<jason@lakedaemon.net>
Cc: Device Tree Mailing List <devicetree@vger.kernel.org>,
	Peter Ujfalusi <peter.ujfalusi@ti.com>,
	Sekhar Nori <nsekhar@ti.com>,
	linux-kernel@vger.kernel.org, Tero Kristo <t-kristo@ti.com>,
	Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v5 00/10] Add support for TISCI irqchip drivers
Date: Sat, 16 Feb 2019 09:07:12 +0530
Message-ID: <a14f77bd-63cf-adb2-39c4-a8f45070ee9a@ti.com> (raw)
In-Reply-To: <20190212074237.2875-1-lokeshvutla@ti.com>

Hi Marc,

On 2/12/2019 1:12 PM, Lokesh Vutla wrote:
> TI AM65x SoC based on K3 architecture introduced support for Events
> which are message based interrupts with minimal latency. These events
> are not compatible with regular interrupts and are valid only through
> an event transport lane. An Interrupt Aggregator(INTA) is introduced
> to convert these events to interrupts. INTA can also group 64 events
> into a single interrupt. Now the SoC has many peripherals and a large
> number of event sources (time sync or DMA), the use of events is
> completely dependent on a user's specific application, which drives a
> need for maximum flexibility in which event sources are used in the
> system. It is also completely up to software control as to how the
> events are serviced.
> 
> Because of the huge flexibility there are certain standard peripherals
> (like GPIO etc)where all interrupts cannot be directly corrected to host
> interrupt controller. For this purpose, Interrupt Router(INTR) is
> introduced in the SoC. INTR just does a classic interrupt redirection.
> 
> So the SoC has 3 types of interrupt controllers:
> - GIC500
> - Interrupt Router
> - Interrupt Aggregator
> 
> Below is a diagrammatic view of how SoC integration of these interrupt
> controllers:(https://pastebin.ubuntu.com/p/9ngV3jdGj2/)
> 
> Device Index-x               Device Index-y
>            |                         |
>            |                         |
>                       ....
>             \                       /
>              \                     /
>               \  (global events)  /
>           +---------------------------+   +---------+
>           |                           |   |         |
>           |             INTA          |   |  GPIO   |
>           |                           |   |         |
>           +---------------------------+   +---------+
>                          |   (vint)            |
>                          |                     |
>                         \|/                    |
>           +---------------------------+        |
>           |                           |<-------+
>           |           INTR            |
>           |                           |
>           +---------------------------+
>                          |
>                          |
>                         \|/ (gic irq)
>           +---------------------------+
>           |                           |
>           |             GIC           |
>           |                           |
>           +---------------------------+
> 
> While at it, TISCI abstracts the handling of all above IRQ routes where
> interrupt sources are not directly connected to host interrupt controller.
> That would be configuration of Interrupt Aggregator and Interrupt Router.
> 
> This series adds support for:
> - TISCI commands needed for IRQ configuration
> - Interrupt Router(INTR) and Interrupt Aggregator(INTA) drivers

Sorry to bother you again. Any chance you can take a quick look at the
series?

Thanks and regards,
Lokesh

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

      parent reply index

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-12  7:42 Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 01/10] firmware: ti_sci: Add support to get TISCI handle using of_phandle Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 02/10] firmware: ti_sci: Add support for RM core ops Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 03/10] firmware: ti_sci: Add support for IRQ management Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 04/10] firmware: ti_sci: Add RM mapping table for am654 Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 05/10] dt-bindings: irqchip: Introduce TISCI Interrupt router bindings Lokesh Vutla
2019-02-12 16:22   ` Tony Lindgren
2019-02-13  4:25     ` Lokesh Vutla
2019-02-13 15:26       ` Tony Lindgren
2019-02-13 20:40         ` Rob Herring
2019-02-14  8:38         ` Lokesh Vutla
2019-02-14 15:41           ` Tony Lindgren
2019-02-14 17:32             ` Lokesh Vutla
2019-02-14 17:46               ` Tony Lindgren
2019-02-14 18:02                 ` Lokesh Vutla
2019-02-15 16:16                   ` Tony Lindgren
2019-02-16  3:29                     ` Lokesh Vutla
2019-02-18 14:32                       ` Tony Lindgren
2019-02-19  8:51                         ` Lokesh Vutla
2019-02-19 15:35                           ` Tony Lindgren
2019-02-19 16:19                             ` Lokesh Vutla
2019-02-19 17:11                               ` Tony Lindgren
2019-02-19 17:56                                 ` Tony Lindgren
2019-02-20  5:53                                   ` Lokesh Vutla
2019-02-20 16:36                             ` Tony Lindgren
2019-02-20 17:17                               ` Lokesh Vutla
2019-02-12 16:30   ` Tony Lindgren
2019-02-13  4:22     ` Lokesh Vutla
2019-02-13 15:32       ` Tony Lindgren
2019-02-14  8:40         ` Lokesh Vutla
2019-02-14 15:42           ` Tony Lindgren
2019-02-16  3:30   ` Lokesh Vutla
2019-02-18 14:35     ` Tony Lindgren
2019-02-22 10:10       ` Peter Ujfalusi
2019-02-18 15:12   ` Marc Zyngier
2019-02-18 15:27     ` Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 06/10] irqchip: ti-sci-intr: Add support for Interrupt Router driver Lokesh Vutla
2019-02-18 15:52   ` Marc Zyngier
2019-02-20 13:17     ` Lokesh Vutla
2019-03-19 12:44       ` Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 07/10] dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 08/10] irqchip: ti-sci-inta: Add support for Interrupt Aggregator driver Lokesh Vutla
2019-02-12  7:42 ` [PATCH v5 09/10] soc: ti: Add MSI domain support for K3 Interrupt Aggregator Lokesh Vutla
2019-02-13 16:41   ` Tony Lindgren
2019-02-12  7:42 ` [PATCH v5 10/10] soc: ti: am6: Enable interrupt controller drivers Lokesh Vutla
2019-02-16  3:37 ` Lokesh Vutla [this message]

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=a14f77bd-63cf-adb2-39c4-a8f45070ee9a@ti.com \
    --to=lokeshvutla@ti.com \
    --cc=devicetree@vger.kernel.org \
    --cc=jason@lakedaemon.net \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=marc.zyngier@arm.com \
    --cc=nm@ti.com \
    --cc=nsekhar@ti.com \
    --cc=peter.ujfalusi@ti.com \
    --cc=robh+dt@kernel.org \
    --cc=ssantosh@kernel.org \
    --cc=t-kristo@ti.com \
    --cc=tglx@linutronix.de \
    --cc=tony@atomide.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ARM-Kernel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/0 linux-arm-kernel/git/0.git
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/1 linux-arm-kernel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-kernel linux-arm-kernel/ https://lore.kernel.org/linux-arm-kernel \
		linux-arm-kernel@lists.infradead.org infradead-linux-arm-kernel@archiver.kernel.org
	public-inbox-index linux-arm-kernel


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-arm-kernel


AGPL code for this site: git clone https://public-inbox.org/ public-inbox