| From: |
| Gregory CLEMENT <gregory.clement@free-electrons.com> |
| To: |
| Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Gregory Clement <gregory.clement@free-electrons.com>,
Marek Szyprowski <m.szyprowski@samsung.com> |
| Subject: |
| [PATCH V2 0/3] Add hardware I/O coherency support for Armada 370/XP |
| Date: |
| Fri, 16 Nov 2012 10:44:57 +0100 |
| Message-ID: |
| <1353059100-24022-1-git-send-email-gregory.clement@free-electrons.com> |
| Cc: |
| linux-arm-kernel@lists.infradead.org,
Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
Russell King <linux@arm.linux.org.uk>,
Rob Herring <rob.herring@calxeda.com>,
Ben Dooks <ben-linux@fluff.org>,
Ian Molton <ian.molton@codethink.co.uk>,
Nicolas Pitre <nico@fluxnic.net>,
Lior Amsalem <alior@marvell.com>,
Maen Suleiman <maen@marvell.com>,
Tawfik Bayouk <tawfik@marvell.com>,
Shadi Ammouri <shadi@marvell.com>,
Eran Ben-Avi <benavi@marvell.com>,
Yehuda Yitschak <yehuday@marvell.com>,
Nadav Haklai <nadavh@marvell.com>,
Ike Pan <ike.pan@canonical.com>,
Jani Monoses <jani.monoses@canonical.com>,
Chris Van Hoof <vanhoof@canonical.com>,
Dan Frazier <dann.frazier@canonical.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Leif Lindholm <leif.lindholm@arm.com>,
Jon Masters <jcm@redhat.com>,
David Marlin <dmarlin@redhat.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
linux-kernel@vger.kernel.org |
| Archive‑link: | |
Article |
The purpose of this patch set is to add hardware I/O Coherency support
for Armada 370 and Armada XP. Theses SoCs come with an unit called
coherency fabric. A beginning of the support for this unit have been
introduced with the SMP patch set. This series extend this support:
the coherency fabric unit allows to use the Armada XP and the Armada
370 as nearly coherent architectures.
The third patches enables this new feature and register our own set
of DMA ops, to benefit this hardware enhancement.
The first patches exports dma operation functions needed by to
register our own set of dma ops.
The second patch introduces a new flag for the address decoding
configuration in order to be able to set the memory windows as
shared memory.
This series depend on the SMP patch set (V3 was posted on Monday)
The git branch called HWIOCC-for-3.8-V2 is also available at
https://github.com/MISL-EBU-System-SW/mainline-public.git.
Changelog:
V1 -> V2:
- Rebased on to v3.7-rc5
- Added a new patch to exports the dma ops functions
- Renamed the function for a more generic name mvebu_hwcc
- removed the non SMP case during init
- spelling and wording issues
- updating the binding documentation for coherency fabric
Gregory CLEMENT (3):
arm: dma mapping: Export dma ops functions
arm: plat-orion: Add coherency attribute when setup mbus target
arm: mvebu: Add hardware I/O Coherency support
.../devicetree/bindings/arm/coherency-fabric.txt | 9 ++-
arch/arm/boot/dts/armada-370-xp.dtsi | 3 +-
arch/arm/include/asm/dma-mapping.h | 62 +++++++++++++++++
arch/arm/mach-mvebu/addr-map.c | 3 +
arch/arm/mach-mvebu/coherency.c | 73 ++++++++++++++++++++
arch/arm/mm/dma-mapping.c | 36 +++-------
arch/arm/plat-orion/addr-map.c | 4 ++
arch/arm/plat-orion/include/plat/addr-map.h | 1 +
8 files changed, 160 insertions(+), 31 deletions(-)
--
1.7.9.5
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