linux-kernel - [PATCH v2 0/4] add support for GICv3 on the Foundation model

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Message-Id: <1450186598-24504-1-git-send-email-andre.przywara@arm.com>
Date:	Tue, 15 Dec 2015 13:36:34 +0000
From:	Andre Przywara <andre.przywara@....com>
To:	rob.herring@...aro.org, Pawel Moll <pawel.moll@....com>,
	ijc+devicetree@...lion.org.uk, marc.zyngier@....com
Cc:	catalin.marinas@....com, will.deacon@....com,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Kumar Gala <galak@...eaurora.org>
Subject: [PATCH v2 0/4] add support for GICv3 on the Foundation model

Hi,

this is v2 adressing the two comments that Marc had on the previous
version.
Changelog:
- remove bogus affinity field from GICv3 maintenance interrupt
- replace commit message for patch 2/4
----------------

The freely available ARM Foundation model [1] supports emulating a
GICv3 interrupt controller (--gicv3).
To provide the kernel with the proper information, prepare the
existing model .dts to be split up and eventually create a new .dts
file which can be used to boot a kernel using the GICv3 in the model.

Patch 1/4 changes the common device tree to allow sharing most of the
definitions later, while patch 2/4 is a drive-by-fix to add support
for the recently enabled EOImode=1.
Patch 3/4 splits the existing DT up to have a common .dtsi file and a
stub foundation-v8.dts in preparation for the final patch 4/4, which
adds a new foundation-v8-gicv3.dts that has the required GICv3 node.

Together with the GICv3 support of the bootwrapper this allows to boot
Linux and make it use the GICv3 interrupt controller.

Cheers,
Andre.

[1]: http://www.arm.com/products/tools/models/fast-models/foundation-model.php

Andre Przywara (4):
  arm64: dts: prepare foundation-v8.dts to cope with GICv3
  arm64: dts: Foundation model: increase GICC region to allow EOImode=1
  arm64: dts: split Foundation model dts to put the GIC separately
  arm64: dts: add .dts for GICv3 Foundation model

 arch/arm64/boot/dts/arm/Makefile                   |   2 +-
 arch/arm64/boot/dts/arm/foundation-v8-gicv3.dts    |  30 +++
 arch/arm64/boot/dts/arm/foundation-v8.dts          | 227 +--------------------
 .../arm/{foundation-v8.dts => foundation-v8.dtsi}  |  98 ++++-----
 4 files changed, 78 insertions(+), 279 deletions(-)
 create mode 100644 arch/arm64/boot/dts/arm/foundation-v8-gicv3.dts
 copy arch/arm64/boot/dts/arm/{foundation-v8.dts => foundation-v8.dtsi} (73%)

-- 
2.5.1

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