From: Christoph Hellwig <hch@lst.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alex Sierra <alex.sierra@amd.com>,
Felix.Kuehling@amd.com, linux-mm@kvack.org, rcampbell@nvidia.com,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
hch@lst.de, jgg@nvidia.com, jglisse@redhat.com,
apopple@nvidia.com, willy@infradead.org
Subject: Re: [PATCH v4 00/10] Add MEMORY_DEVICE_COHERENT for coherent device memory mapping
Date: Wed, 2 Feb 2022 15:57:50 +0100 [thread overview]
Message-ID: <20220202145750.GA25170@lst.de> (raw)
In-Reply-To: <20220127143258.8da663659948ad1e6f0c0ea8@linux-foundation.org>
On Thu, Jan 27, 2022 at 02:32:58PM -0800, Andrew Morton wrote:
> On Wed, 26 Jan 2022 21:09:39 -0600 Alex Sierra <alex.sierra@amd.com> wrote:
>
> > This patch series introduces MEMORY_DEVICE_COHERENT, a type of memory
> > owned by a device that can be mapped into CPU page tables like
> > MEMORY_DEVICE_GENERIC and can also be migrated like
> > MEMORY_DEVICE_PRIVATE.
>
> Some more reviewer input appears to be desirable here.
>
> I was going to tentatively add it to -mm and -next, but problems.
> 5.17-rc1's mm/migrate.c:migrate_vma_check_page() is rather different
> from the tree you patched. Please redo, refresh and resend?
I really hate adding more types with the weird one off page refcount.
We need to clean that mess up first.
next prev parent reply other threads:[~2022-02-02 14:57 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 3:09 [PATCH v4 00/10] Add MEMORY_DEVICE_COHERENT for coherent device memory mapping Alex Sierra
2022-01-27 3:09 ` [PATCH v4 01/10] mm: add zone device coherent type memory support Alex Sierra
2022-01-28 1:57 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 02/10] mm: add device coherent vma selection for memory migration Alex Sierra
2022-01-28 2:07 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 03/10] mm/gup: fail get_user_pages for LONGTERM dev coherent type Alex Sierra
2022-01-28 2:36 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 04/10] drm/amdkfd: add SPM support for SVM Alex Sierra
2022-01-28 2:38 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 05/10] drm/amdkfd: coherent type as sys mem on migration to ram Alex Sierra
2022-01-27 3:09 ` [PATCH v4 06/10] lib: test_hmm add ioctl to get zone device type Alex Sierra
2022-01-28 4:22 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 07/10] lib: test_hmm add module param for " Alex Sierra
2022-01-28 4:22 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 08/10] lib: add support for device coherent type in test_hmm Alex Sierra
2022-01-28 4:25 ` Alistair Popple
2022-01-27 3:09 ` [PATCH v4 09/10] tools: update hmm-test to support device coherent type Alex Sierra
2022-01-27 3:09 ` [PATCH v4 10/10] tools: update test_hmm script to support SP config Alex Sierra
2022-01-27 22:32 ` [PATCH v4 00/10] Add MEMORY_DEVICE_COHERENT for coherent device memory mapping Andrew Morton
2022-01-27 23:20 ` Sierra Guiza, Alejandro (Alex)
2022-01-28 7:08 ` Andrew Morton
2022-01-28 15:00 ` Deucher, Alexander
2022-01-28 17:09 ` Felix Kuehling
2022-02-02 14:57 ` Christoph Hellwig [this message]
2022-02-02 15:42 ` Jason Gunthorpe
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