| Message ID | 20180824192549.30844-1-jglisse@redhat.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | HMM updates, improvements and fixes | expand |
On Fri, Aug 24, 2018 at 03:25:42PM -0400, jglisse@redhat.com wrote: > From: Jérôme Glisse <jglisse@redhat.com> > > Few fixes that only affect HMM users. Improve the synchronization call > back so that we match was other mmu_notifier listener do and add proper > support to the new blockable flags in the process. > > For curious folks here are branches to leverage HMM in various existing > device drivers: > > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-nouveau-v01 > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-radeon-v00 > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-intel-v00 > > More to come (amd gpu, Mellanox, ...) > > I expect more of the preparatory work for nouveau will be merge in 4.20 > (like we have been doing since 4.16) and i will wait until this patchset > is upstream before pushing the patches that actualy make use of HMM (to > avoid complex tree inter-dependency). > Andrew do you want me to repost this on top of lastest mmotm ? All conflict should be pretty trivial to fix. Cheers, Jérôme
On Fri, 12 Oct 2018 14:15:45 -0400 Jerome Glisse <jglisse@redhat.com> wrote: > On Fri, Aug 24, 2018 at 03:25:42PM -0400, jglisse@redhat.com wrote: > > From: Jérôme Glisse <jglisse@redhat.com> > > > > Few fixes that only affect HMM users. Improve the synchronization call > > back so that we match was other mmu_notifier listener do and add proper > > support to the new blockable flags in the process. > > > > For curious folks here are branches to leverage HMM in various existing > > device drivers: > > > > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-nouveau-v01 > > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-radeon-v00 > > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-intel-v00 > > > > More to come (amd gpu, Mellanox, ...) > > > > I expect more of the preparatory work for nouveau will be merge in 4.20 > > (like we have been doing since 4.16) and i will wait until this patchset > > is upstream before pushing the patches that actualy make use of HMM (to > > avoid complex tree inter-dependency). > > > > Andrew do you want me to repost this on top of lastest mmotm ? > All conflict should be pretty trivial to fix. Please. I ducked v1 because a v2 was in the works. It's very late in the cycle so you might want to prepare an urgent-for-4.19 series and a for-4.20 series. Or, better, a single series with the appropriate Cc:stable tags. Please ensure that all review questions which have thus far been received are appropriately answered in code comments and in changelogs. Because if one reader was wondering about something, others will wonder the same thing in the future.
From: Jérôme Glisse <jglisse@redhat.com> Few fixes that only affect HMM users. Improve the synchronization call back so that we match was other mmu_notifier listener do and add proper support to the new blockable flags in the process. For curious folks here are branches to leverage HMM in various existing device drivers: https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-nouveau-v01 https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-radeon-v00 https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-intel-v00 More to come (amd gpu, Mellanox, ...) I expect more of the preparatory work for nouveau will be merge in 4.20 (like we have been doing since 4.16) and i will wait until this patchset is upstream before pushing the patches that actualy make use of HMM (to avoid complex tree inter-dependency). Jérôme Glisse (5): mm/hmm: fix utf8 ... mm/hmm: properly handle migration pmd mm/hmm: use a structure for update callback parameters mm/hmm: invalidate device page table at start of invalidation mm/hmm: proper support for blockable mmu_notifier Ralph Campbell (2): mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly mm/hmm: fix race between hmm_mirror_unregister() and mmu_notifier callback include/linux/hmm.h | 37 +++++++---- mm/hmm.c | 150 ++++++++++++++++++++++++++++++------------- mm/page_vma_mapped.c | 9 +++ 3 files changed, 142 insertions(+), 54 deletions(-)