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Fri, 24 Apr 2026 21:23:07 +0000 Date: Fri, 24 Apr 2026 14:23:04 -0700 From: Matthew Brost To: Mika =?iso-8859-1?Q?Penttil=E4?= CC: Andrew Morton , , , David Hildenbrand , "Jason Gunthorpe" , Leon Romanovsky , "Alistair Popple" , Balbir Singh , Zi Yan , Lorenzo Stoakes , "Liam R. 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COW) to the GPU requires doing either of the > >> following sequences: > >> > >> ... > >> > > Via which tree would it be best to upstream this? > > > >> include/linux/hmm.h | 19 +- > >> include/linux/migrate.h | 26 +- > >> lib/test_hmm.c | 101 ++- > >> lib/test_hmm_uapi.h | 19 +- > >> mm/Kconfig | 2 + > >> mm/hmm.c | 821 +++++++++++++++++++++++-- > >> mm/migrate_device.c | 589 +++--------------- > >> tools/testing/selftests/mm/hmm-tests.c | 54 ++ > >> 8 files changed, 1053 insertions(+), 578 deletions(-) > > Looks like mm.git. > > > > It might be more useful to add it to a DRM tree if there's ongoing > > development against this. But please no upstreaming without good > > review! > > > > Anyway, this is a bit dated and Sashiko AI review wasn't able to apply > > the patches. Nor was it able to apply v7 or v6. So please refresh, > > retest, resend? > > It is against Linus tree v7.0, base-commit: 028ef9c96e96197026887c0f092424679298aae8, > but applies and passes hmm selftests on mm trees as is. > > I plan to do v9 refresh and maybe minor updates in week or so. > It might be good to send a version which applies to drm-tip to intel-xe@lists.freedesktop.org to trigger our CI too. I know tested an earlier rev and everything seemed to be working but another round of testing before merging is likely a good idea. Matt > --Mika >