From: Tomasz Nowicki <tn@semihalf.com>
To: marc.zyngier@arm.com, tglx@linutronix.de, jason@lakedaemon.net,
rjw@rjwysocki.net, helgaas@kernel.org, rafael@kernel.org,
Lorenzo.Pieralisi@arm.com
Cc: will.deacon@arm.com, catalin.marinas@arm.com,
hanjun.guo@linaro.org, shijie.huang@arm.com,
robert.richter@caviumnetworks.com, mw@semihalf.com,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linaro-acpi@lists.linaro.org, andrea.gallo@linaro.org,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
al.stone@linaro.org, graeme.gregory@linaro.org,
ddaney.cavm@gmail.com, okaya@codeaurora.org
Subject: Re: [UPDATE PATCH V10 2/8] ACPI: Add new IORT functions to support MSI domain handling
Date: Wed, 7 Sep 2016 15:01:44 +0200 [thread overview]
Message-ID: <c9c233c4-bb19-df6f-f848-7306af713eb5@semihalf.com> (raw)
In-Reply-To: <1473249493-20271-1-git-send-email-tn@semihalf.com>
On 07.09.2016 13:58, Tomasz Nowicki wrote:
> For ITS, MSI functionality consists on building domain stack and
> during that process we need to reference to domain stack components
> e.g. before we create new DOMAIN_BUS_PCI_MSI domain we need to specify
> its DOMAIN_BUS_NEXUS parent domain. In order to manage that process
> properly, maintain list which elements contain domain token
> (unique for MSI domain stack) and ITS ID: iort_register_domain_token()
> and iort_deregister_domain_token(). Then retrieve domain token
> any time later with ITS ID being key off: iort_find_domain_token().
> With domain token and domain type we are able to find corresponding
> IRQ domain.
>
> Since IORT is prepared to describe MSI domain on a per-device basis,
> use existing IORT helpers and implement two calls:
> 1. iort_msi_map_rid() to map MSI RID for a device
> 2. iort_get_device_domain() to find domain token for a device
>
> Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
>
> Conflicts:
> drivers/acpi/arm64/iort.c
Rebase leftover ^^^, sorry.
Tomasz
next prev parent reply other threads:[~2016-09-07 13:01 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-06 9:08 [PATCH V10 0/8] Introduce ACPI world to ITS irqchip Tomasz Nowicki
2016-09-06 9:08 ` [PATCH V10 1/8] ACPI: I/O Remapping Table (IORT) initial support Tomasz Nowicki
2016-09-07 11:56 ` [UPDATE PATCH " Tomasz Nowicki
2016-09-08 13:59 ` Lorenzo Pieralisi
2016-09-09 9:20 ` Lorenzo Pieralisi
2016-09-12 12:37 ` Tomasz Nowicki
2016-09-12 13:04 ` Marc Zyngier
2016-09-12 13:43 ` Rafael J. Wysocki
2016-09-09 3:09 ` [PATCH " Dennis Chen
2016-09-09 8:45 ` Lorenzo Pieralisi
2016-09-06 9:08 ` [PATCH V10 2/8] ACPI: Add new IORT functions to support MSI domain handling Tomasz Nowicki
2016-09-06 10:20 ` Thomas Gleixner
2016-09-06 10:27 ` Tomasz Nowicki
2016-09-07 10:35 ` Tomasz Nowicki
2016-09-07 11:32 ` Rafael J. Wysocki
2016-09-07 11:58 ` [UPDATE PATCH " Tomasz Nowicki
2016-09-07 13:01 ` Tomasz Nowicki [this message]
2016-09-06 9:08 ` [PATCH V10 3/8] PCI/MSI: Setup MSI domain on a per-device basis using IORT ACPI table Tomasz Nowicki
2016-09-06 9:08 ` [PATCH V10 4/8] irqchip/gicv3-its: Cleanup for ITS domain initialization Tomasz Nowicki
2016-09-06 9:08 ` [PATCH V10 5/8] irqchip/gicv3-its: Refactor ITS DT init code to prepare for ACPI Tomasz Nowicki
2016-09-06 9:08 ` [PATCH V10 6/8] irqchip/gicv3-its: Probe ITS in the ACPI way Tomasz Nowicki
2016-09-06 9:08 ` [PATCH V10 7/8] irqchip/gicv3-its: Factor out PCI-MSI part that might be reused for ACPI Tomasz Nowicki
2016-09-06 9:50 ` Thomas Gleixner
2016-09-06 10:22 ` Tomasz Nowicki
2016-09-06 11:29 ` Rafael J. Wysocki
2016-09-07 7:49 ` Tomasz Nowicki
2016-09-06 9:08 ` [PATCH V10 8/8] irqchip/gicv3-its: Use MADT ITS subtable to do PCI/MSI domain initialization Tomasz Nowicki
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