From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Jordan Niethe <jniethe@nvidia.com>, linux-mm@kvack.org
Cc: balbirs@nvidia.com, matthew.brost@intel.com,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, ziy@nvidia.com,
apopple@nvidia.com, lorenzo.stoakes@oracle.com, lyude@redhat.com,
dakr@kernel.org, airlied@gmail.com, simona@ffwll.ch,
rcampbell@nvidia.com, mpenttil@redhat.com, jgg@nvidia.com,
willy@infradead.org, linuxppc-dev@lists.ozlabs.org,
intel-xe@lists.freedesktop.org, jgg@ziepe.ca,
Felix.Kuehling@amd.com, jhubbard@nvidia.com, maddy@linux.ibm.com,
mpe@ellerman.id.au, ying.huang@linux.alibaba.com
Subject: Re: [PATCH v6 00/13] Remove device private pages from physical address space
Date: Fri, 6 Feb 2026 14:08:42 +0100 [thread overview]
Message-ID: <ef673543-b03b-47b3-bd40-2540a56b6333@kernel.org> (raw)
In-Reply-To: <20260202113642.59295-1-jniethe@nvidia.com>
> By removing the device private pages from the physical address space,
> this series also opens up the possibility to moving away from tracking
> device private memory using struct pages in the future. This is
> desirable as on systems with large amounts of memory these device
> private struct pages use a signifiant amount of memory and take a
> significant amount of time to initialize.
>
> Changes in v6
> -------------
> - Fix maybe unused in kgd2kfd_init_zone_device()
> - Replace division by PAGE_SIZE with DIV_ROUND_UP() when setting
> nr_pages. This mirrors the align up that previously happened in
> get_free_mem_region()
>
> Note removed previous discussion in the cover letter relating to aarch64
> and memremap_pages() as this was actually already addressed in commit
> eeb8fdfcf090 ("arm64: Expose the end of the linear map in PHYSMEM_END").
>
Now that I stumbled over v6, same comment; planning on taking a look soon.
--
Cheers,
David
prev parent reply other threads:[~2026-02-06 13:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-02 11:36 Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 01/13] mm/migrate_device: Introduce migrate_pfn_from_page() helper Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 02/13] drm/amdkfd: Use migrate pfns internally Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 03/13] mm/migrate_device: Make migrate_device_{pfns,range}() take mpfns Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 04/13] mm/migrate_device: Add migrate PFN flag to track device private pages Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 05/13] mm/page_vma_mapped: Add flag to page_vma_mapped_walk::flags " Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 06/13] mm: Add helpers to create migration entries from struct pages Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 07/13] mm: Add a new swap type for migration entries of device private pages Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 08/13] mm: Add softleaf support for device private migration entries Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 09/13] mm: Begin creating " Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 10/13] mm: Add helpers to create device private entries from struct pages Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 11/13] mm/util: Add flag to track device private pages in page snapshots Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 12/13] mm/hmm: Add flag to track device private pages Jordan Niethe
2026-02-02 11:36 ` [PATCH v6 13/13] mm: Remove device private pages from the physical address space Jordan Niethe
2026-02-06 13:08 ` David Hildenbrand (Arm) [this message]
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