linux-kernel - Re: [PATCH 1/2] ARM: dma-mapping: Pass device to arm_iommu_create

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Message-ID: <20240904124405.GA825382@nvidia.com>
Date: Wed, 4 Sep 2024 09:44:05 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Lu Baolu <baolu.lu@...ux.intel.com>,
	Russell King <linux@...linux.org.uk>
Cc: Inki Dae <inki.dae@...sung.com>, Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Kevin Tian <kevin.tian@...el.com>, Yi Liu <yi.l.liu@...el.com>,
	iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ARM: dma-mapping: Pass device to
 arm_iommu_create_mapping()

On Mon, Aug 12, 2024 at 03:02:01PM +0800, Lu Baolu wrote:
> From: Robin Murphy <robin.murphy@....com>
> 
> All users of ARM IOMMU mappings create them for a particular device, so
> change the interface to accept the device rather than forcing a vague
> indirection through a bus type. This prepares for making a similar
> change to iommu_domain_alloc() itself.
> 
> Signed-off-by: Robin Murphy <robin.murphy@....com>
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> Link: https://lore.kernel.org/r/20240610085555.88197-17-baolu.lu@linux.intel.com
> ---
>  arch/arm/include/asm/dma-iommu.h         | 2 +-
>  arch/arm/mm/dma-mapping.c                | 8 ++++----
>  drivers/gpu/drm/exynos/exynos_drm_dma.c  | 2 +-
>  drivers/iommu/ipmmu-vmsa.c               | 3 +--
>  drivers/iommu/mtk_iommu_v1.c             | 3 +--
>  drivers/media/platform/ti/omap3isp/isp.c | 2 +-
>  6 files changed, 9 insertions(+), 11 deletions(-)

I still have an account with RMK's patch tracking system, so I went
ahead and put these there so Russell can pick them up:

 https://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=9417/1
 https://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=9418/1

I think I did it right, though it has been a decade since I last did
this..

Regards,
Jason