linux-kernel - Re: [PATCH 00/29] Exynos SYSMMU (IOMMU) integration with DT and DMA-mapping subsystem

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Message-id: <53F2E9AD.9030308@samsung.com>
Date:	Tue, 19 Aug 2014 08:07:41 +0200
From:	Marek Szyprowski <m.szyprowski@...sung.com>
To:	Joerg Roedel <joro@...tes.org>
Cc:	iommu@...ts.linux-foundation.org,
	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-mm-sig@...ts.linaro.org, Arnd Bergmann <arnd@...db.de>,
	Shaik Ameer Basha <shaik.ameer@...sung.com>,
	Cho KyongHo <pullip.cho@...sung.com>,
	Thierry Reding <treding@...dia.com>,
	Olof Johansson <olof@...om.net>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Rob Herring <robh@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Inki Dae <inki.dae@...sung.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [PATCH 00/29] Exynos SYSMMU (IOMMU) integration with DT and
 DMA-mapping subsystem

Hello,

On 2014-08-19 01:32, Joerg Roedel wrote:
> On Tue, Aug 05, 2014 at 12:47:28PM +0200, Marek Szyprowski wrote:
>>   .../devicetree/bindings/iommu/samsung,sysmmu.txt   |  93 ++-
>>   Documentation/power/notifiers.txt                  |  14 +
>>   arch/arm/boot/dts/exynos4.dtsi                     | 118 ++++
>>   arch/arm/boot/dts/exynos4210.dtsi                  |  23 +
>>   arch/arm/boot/dts/exynos4x12.dtsi                  |  82 +++
>>   arch/arm/include/asm/dma-iommu.h                   |  36 ++
>>   arch/arm/mach-exynos/pm_domains.c                  |  12 +-
>>   arch/arm/mach-integrator/impd1.c                   |   2 +-
>>   arch/arm/mm/dma-mapping.c                          |  47 ++
>>   drivers/base/bus.c                                 |   4 +-
>>   drivers/base/dd.c                                  |  10 +-
>>   drivers/base/platform.c                            |   2 +-
>>   drivers/base/power/domain.c                        |  70 ++-
>>   drivers/clk/samsung/clk-exynos4.c                  |   1 +
>>   drivers/gpu/drm/exynos/exynos_drm_fimc.c           |   1 +
>>   drivers/gpu/drm/exynos/exynos_drm_fimd.c           |  26 +-
>>   drivers/gpu/drm/exynos/exynos_drm_g2d.c            |   1 +
>>   drivers/gpu/drm/exynos/exynos_drm_gsc.c            |   1 +
>>   drivers/gpu/drm/exynos/exynos_drm_rotator.c        |   1 +
>>   drivers/gpu/drm/exynos/exynos_mixer.c              |   1 +
>>   drivers/iommu/exynos-iommu.c                       | 663 +++++++++++++--------
>>   drivers/iommu/iommu.c                              |   3 +
>>   drivers/media/platform/s5p-mfc/s5p_mfc.c           | 107 ++--
>>   drivers/pci/host/pci-mvebu.c                       |   2 +-
>>   drivers/pci/host/pci-rcar-gen2.c                   |   2 +-
>>   drivers/pci/host/pci-tegra.c                       |   2 +-
>>   drivers/pci/host/pcie-rcar.c                       |   2 +-
>>   drivers/soc/tegra/pmc.c                            |   2 +-
>>   include/dt-bindings/clock/exynos4.h                |  10 +-
>>   include/linux/device.h                             |  12 +-
>>   include/linux/iommu.h                              |   1 +
>>   include/linux/pm.h                                 |   2 +
>>   include/linux/pm_domain.h                          |  19 +
>>   33 files changed, 1016 insertions(+), 356 deletions(-)
> This touches a lot of non-iommu stuff. What is your strategy on getting
> this in, do you plan to get the non-iommu changes merged first or do you
> want to collect the respective Acks and merge this all through one tree?

Those patches are posted as one patchset mainly to demonstrate how to get
everything to work together. I also posted this as a single patch series
to get some feedback from other iommu developers, especially all those
involved in the generic iommu dt bindings.

For merging, I will split them into smaller series and try to get
respective acks.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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