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Message-ID: <dad19582-43ce-3882-1592-c99ee96d07fb@linaro.org>
Date: Wed, 30 Nov 2016 11:22:42 +0800
From: Hanjun Guo <hanjun.guo@...aro.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
iommu@...ts.linux-foundation.org
Cc: Tomasz Nowicki <tn@...ihalf.com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Will Deacon <will.deacon@....com>,
Marc Zyngier <marc.zyngier@....com>,
Robin Murphy <robin.murphy@....com>,
Joerg Roedel <joro@...tes.org>, Jon Masters <jcm@...hat.com>,
Eric Auger <eric.auger@...hat.com>,
Sinan Kaya <okaya@...eaurora.org>,
Nate Watterson <nwatters@...eaurora.org>,
Prem Mallappa <prem.mallappa@...adcom.com>,
Dennis Chen <dennis.chen@....com>, linux-acpi@...r.kernel.org,
linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v9 15/16] drivers: acpi: iort: add single mapping function
On 2016/11/21 18:01, Lorenzo Pieralisi wrote:
> The current IORT id mapping API requires components to provide
> an input requester ID (a Bus-Device-Function (BDF) identifier for
> PCI devices) to translate an input identifier to an output
> identifier through an IORT range mapping.
>
> Named components do not have an identifiable source ID therefore
> their respective input/output mapping can only be defined in
> IORT tables through single mappings, that provide a translation
> that does not require any input identifier.
>
> Current IORT interface for requester id mappings (iort_node_map_rid())
> is not suitable for components that do not provide a requester id,
> so it cannot be used for IORT named components.
>
> Add an interface to the IORT API to enable retrieval of id
> by allowing an indexed walk of the single mappings array for
> a given component, therefore completing the IORT mapping API.
>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
> Reviewed-by: Tomasz Nowicki <tn@...ihalf.com>
> Tested-by: Hanjun Guo <hanjun.guo@...aro.org>
> Tested-by: Tomasz Nowicki <tn@...ihalf.com>
> Cc: Hanjun Guo <hanjun.guo@...aro.org>
> Cc: Tomasz Nowicki <tn@...ihalf.com>
> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> ---
> drivers/acpi/arm64/iort.c | 39 +++++++++++++++++++++++++++++++++++++++
> 1 file changed, 39 insertions(+)
Acked-by: Hanjun Guo <hanjun.guo@...aro.org>
Thanks
Hanjun
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