linux-kernel - Re: [PATCH v2 1/3] drm/nouveau/tegra: Use iommu_paging_domain

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Message-ID: <20241001133508.GA1867007@nvidia.com>
Date: Tue, 1 Oct 2024 10:35:08 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Lyude Paul <lyude@...hat.com>
Cc: David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	Lu Baolu <baolu.lu@...ux.intel.com>,
	Karol Herbst <kherbst@...hat.com>,
	Danilo Krummrich <dakr@...hat.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Sandy Huang <hjc@...k-chips.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Mikko Perttunen <mperttunen@...dia.com>,
	Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Kevin Tian <kevin.tian@...el.com>, dri-devel@...ts.freedesktop.org,
	nouveau@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-media@...r.kernel.org,
	iommu@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] drm/nouveau/tegra: Use iommu_paging_domain_alloc()

On Mon, Sep 16, 2024 at 04:42:33PM -0400, Lyude Paul wrote:
> Sigh. Took me a minute but I think I know what happened - I meant to push the
> entire series to drm-misc-next and not drm-misc-fixes, but I must have misread
> or typo'd the branch name and pushed the second half of patches to drm-misc-
> fixes by mistake. So the nouveau commit is present in drm-misc-next, but
> presumably drm-misc-fixes got pulled first.
> 
> Sorry about that - I have no idea how I managed that mistake.

Three didn't make it to rc1, including this one:

drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c:             tdev->iommu.domain = iommu_domain_alloc(&platform_bus_type>
drivers/media/platform/nvidia/tegra-vde/iommu.c:        vde->domain = iommu_domain_alloc(&platform_bus_type);
drivers/remoteproc/remoteproc_core.c:   domain = iommu_domain_alloc(dev->bus);

I prefer we send these through the iommu tree now so we can make
progress.

Jason