From: Nishanth Menon <nm@ti.com>
To: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Device Tree Mailing List <devicetree@vger.kernel.org>,
jason@lakedaemon.net, Peter Ujfalusi <peter.ujfalusi@ti.com>,
marc.zyngier@arm.com, Sekhar Nori <nsekhar@ti.com>,
linux-kernel@vger.kernel.org, Tero Kristo <t-kristo@ti.com>,
Rob Herring <robh+dt@kernel.org>,
Santosh Shilimkar <ssantosh@kernel.org>,
tglx@linutronix.de,
Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC PATCH v4 10/13] soc: ti: Add MSI domain support for K3 Interrupt Aggregator
Date: Tue, 15 Jan 2019 08:41:23 -0600 [thread overview]
Message-ID: <20190115144123.3lmt4qqi5y5ssiym@kahuna> (raw)
In-Reply-To: <20181227061313.5451-10-lokeshvutla@ti.com>
On 11:43-20181227, Lokesh Vutla wrote:
> With the system coprocessor managing the range allocation of the
> inputs to Interrupt Aggregator, it is difficult to represent
> the device IRQs from DT.
>
> The suggestion is to use MSI in such cases where devices wants
> to allocate and group interrupts dynamically.
>
> Create a MSI domain bus layer that allocates and frees MSIs for
> a device.
>
> APIs that are implemented are:
> - inta_msi_create_irq_domain() that creates a MSI domain
> - inta_msi_domain_alloc_group_irqs() that creates MSIs for the
> specified device and source indexes. All these are expected to
> be grouped by the parent interrupt controller to MSI domain.
> - inta_msi_domain_free_group_irqs() frees the grouped irqs.
>
> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
> ---
>
> - May be the same functionaly can be included in platform msi. But I would
> like to get a feedback on the approach.
>
> drivers/soc/ti/Kconfig | 6 +
> drivers/soc/ti/Makefile | 1 +
> drivers/soc/ti/k3_inta_msi.c | 193 +++++++++++++++++++++++++++++
> include/linux/irqdomain.h | 1 +
> include/linux/msi.h | 6 +
> include/linux/soc/ti/k3_inta_msi.h | 22 ++++
> 6 files changed, 229 insertions(+)
> create mode 100644 drivers/soc/ti/k3_inta_msi.c
> create mode 100644 include/linux/soc/ti/k3_inta_msi.h
Did we miss maintainer file?
--
Regards,
Nishanth Menon
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next prev parent reply other threads:[~2019-01-15 14:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-27 6:08 [PATCH v4 00/13] Add support for TISCI irqchip drivers Lokesh Vutla
2018-12-27 6:13 ` [PATCH v4 01/13] firmware: ti_sci: Add support to get TISCI handle using of_phandle Lokesh Vutla
2018-12-27 6:13 ` [PATCH v4 02/13] firmware: ti_sci: Add support for RM core ops Lokesh Vutla
2018-12-27 6:13 ` [PATCH v4 03/13] firmware: ti_sci: Add support for IRQ management Lokesh Vutla
2018-12-27 6:13 ` [PATCH v4 04/13] firmware: ti_sci: Add RM mapping table for am654 Lokesh Vutla
2018-12-27 6:13 ` [PATCH v4 05/13] firmware: ti_sci: Add helper apis to manage resources Lokesh Vutla
2018-12-27 16:15 ` Nishanth Menon
2018-12-27 6:13 ` [PATCH v4 06/13] dt-bindings: irqchip: Introduce TISCI Interrupt router bindings Lokesh Vutla
2018-12-27 6:13 ` [PATCH v4 07/13] irqchip: ti-sci-intr: Add support for Interrupt Router driver Lokesh Vutla
2019-01-16 17:16 ` Marc Zyngier
2019-01-24 10:19 ` Lokesh Vutla
2018-12-27 6:13 ` [RFC PATCH v4 08/13] genirq/msi: Add support for allocating single MSI for a device Lokesh Vutla
2019-01-16 18:30 ` Marc Zyngier
2019-01-24 10:19 ` Lokesh Vutla
2019-02-04 10:33 ` Marc Zyngier
2019-02-05 13:42 ` Lokesh Vutla
2019-02-08 10:39 ` Marc Zyngier
2018-12-27 6:13 ` [RFC PATCH v4 09/13] genirq/msi: Add support for .msi_unprepare callback Lokesh Vutla
2019-01-17 10:39 ` Marc Zyngier
2018-12-27 6:13 ` [RFC PATCH v4 10/13] soc: ti: Add MSI domain support for K3 Interrupt Aggregator Lokesh Vutla
2019-01-15 14:41 ` Nishanth Menon [this message]
2018-12-27 6:13 ` [RFC PATCH v4 11/13] dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings Lokesh Vutla
2018-12-27 6:13 ` [RFC PATCH v4 12/13] irqchip: ti-sci-inta: Add support for Interrupt Aggregator driver Lokesh Vutla
2019-01-02 11:49 ` Peter Ujfalusi
2019-01-02 12:26 ` Lokesh Vutla
2019-01-15 12:38 ` Tero Kristo
2019-01-15 14:04 ` Nishanth Menon
2018-12-27 6:13 ` [RFC PATCH v4 13/13] soc: ti: am6: Enable interrupt controller drivers Lokesh Vutla
2019-01-15 13:54 ` Nishanth Menon
2019-01-02 11:58 ` [PATCH v4 00/13] Add support for TISCI irqchip drivers Peter Ujfalusi
2019-01-11 10:28 ` Lokesh Vutla
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