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Re: [PATCH v4 0/9] Making the generic ACPI GSI layer irqdomain aware

From Rob Herring <robherring2@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH v4 0/9] Making the generic ACPI GSI layer irqdomain aware
Date 2015-09-29 19:20 +0200
Message-ID <qe6Jk-4tk-5@gated-at.bofh.it> (permalink)
References <qdJMJ-54p-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Sep 28, 2015 at 11:42 AM, Marc Zyngier <marc.zyngier@arm.com> wrote:
> The irqdomain code is not entierely ACPI friendly, as it has some
> built-in knowledge of the device-tree. Nothing too harmful, but enough
> to scare the ARM ACPI developpers which end up with their own version
> of the square wheel.
>
> This small patch series adapts the irqdomain code to remove the
> hurdles that prevent the full blown irqdomain subsystem to be used on
> ACPI, creates an interface between the GSI layer and the irqdomain,
> and as an example, convert the ARM GIC ACPI support to use irqdomains
> as originally intended.
>
> Overall, this gives us a way to use irqdomains on both DT and ACPI
> enabled platforms, having very little changes made to the actual
> drivers (other than the probing infrastructure). Because we keep the
> flow of information between the various layers identical between ACPI
> and DT, we immediately benefit from the existing infrastructure. The
> "convert the GSI information to be DT friendly" is admitedly not very
> pretty, but I see it as a stepping stone towards unifying the two
> structures.

Did I miss v1-v3 or did the DT change just show up? I probably tuned
out with ACPI in the subject.

Needing fake DT nodes for ACPI is just wrong. There's got to be
another, better way.

Rob
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[PATCH v4 0/9] Making the generic ACPI GSI layer irqdomain aware Marc Zyngier <marc.zyngier@arm.com> - 2015-09-28 18:50 +0200
  [PATCH v4 2/9] genirq/irqdomain: Add irq_create_acpi_mapping Marc Zyngier <marc.zyngier@arm.com> - 2015-09-28 18:50 +0200
  [PATCH v4 7/9] irqchip/GIC: Get rid of gic_init_bases() Marc Zyngier <marc.zyngier@arm.com> - 2015-09-28 18:50 +0200
  [PATCH v4 5/9] acpi/gsi: Add acpi_set_irq_model to initialize the GSI layer Marc Zyngier <marc.zyngier@arm.com> - 2015-09-28 18:50 +0200
  Re: [PATCH v4 0/9] Making the generic ACPI GSI layer irqdomain aware Marc Zyngier <marc.zyngier@arm.com> - 2015-09-29 19:20 +0200
  Re: [PATCH v4 0/9] Making the generic ACPI GSI layer irqdomain aware Rob Herring <robherring2@gmail.com> - 2015-09-29 19:20 +0200

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