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aa32f11691
This is another round of bug fixing and cleanup. This time the focus is on
the driver pattern to use mmu notifiers to monitor a VA range. This code
is lifted out of many drivers and hmm_mirror directly into the
mmu_notifier core and written using the best ideas from all the driver
implementations.
This removes many bugs from the drivers and has a very pleasing
diffstat. More drivers can still be converted, but that is for another
cycle.
- A shared branch with RDMA reworking the RDMA ODP implementation
- New mmu_interval_notifier API. This is focused on the use case of
monitoring a VA and simplifies the process for drivers
- A common seq-count locking scheme built into the mmu_interval_notifier
API usable by drivers that call get_user_pages() or hmm_range_fault()
with the VA range
- Conversion of mlx5 ODP, hfi1, radeon, nouveau, AMD GPU, and Xen GntDev
drivers to the new API. This deletes a lot of wonky driver code.
- Two improvements for hmm_range_fault(), from testing done by Ralph
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Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull hmm updates from Jason Gunthorpe:
"This is another round of bug fixing and cleanup. This time the focus
is on the driver pattern to use mmu notifiers to monitor a VA range.
This code is lifted out of many drivers and hmm_mirror directly into
the mmu_notifier core and written using the best ideas from all the
driver implementations.
This removes many bugs from the drivers and has a very pleasing
diffstat. More drivers can still be converted, but that is for another
cycle.
- A shared branch with RDMA reworking the RDMA ODP implementation
- New mmu_interval_notifier API. This is focused on the use case of
monitoring a VA and simplifies the process for drivers
- A common seq-count locking scheme built into the
mmu_interval_notifier API usable by drivers that call
get_user_pages() or hmm_range_fault() with the VA range
- Conversion of mlx5 ODP, hfi1, radeon, nouveau, AMD GPU, and Xen
GntDev drivers to the new API. This deletes a lot of wonky driver
code.
- Two improvements for hmm_range_fault(), from testing done by Ralph"
* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
mm/hmm: remove hmm_range_dma_map and hmm_range_dma_unmap
mm/hmm: make full use of walk_page_range()
xen/gntdev: use mmu_interval_notifier_insert
mm/hmm: remove hmm_mirror and related
drm/amdgpu: Use mmu_interval_notifier instead of hmm_mirror
drm/amdgpu: Use mmu_interval_insert instead of hmm_mirror
drm/amdgpu: Call find_vma under mmap_sem
nouveau: use mmu_interval_notifier instead of hmm_mirror
nouveau: use mmu_notifier directly for invalidate_range_start
drm/radeon: use mmu_interval_notifier_insert
RDMA/hfi1: Use mmu_interval_notifier_insert for user_exp_rcv
RDMA/odp: Use mmu_interval_notifier_insert()
mm/hmm: define the pre-processor related parts of hmm.h even if disabled
mm/hmm: allow hmm_range to be used with a mmu_interval_notifier or hmm_mirror
mm/mmu_notifier: add an interval tree notifier
mm/mmu_notifier: define the header pre-processor parts even if disabled
mm/hmm: allow snapshot of the special zero page
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|---|---|---|
| .. | ||
| affinity.c | ||
| affinity.h | ||
| aspm.c | ||
| aspm.h | ||
| chip_registers.h | ||
| chip.c | ||
| chip.h | ||
| common.h | ||
| debugfs.c | ||
| debugfs.h | ||
| device.c | ||
| device.h | ||
| driver.c | ||
| efivar.c | ||
| efivar.h | ||
| eprom.c | ||
| eprom.h | ||
| exp_rcv.c | ||
| exp_rcv.h | ||
| fault.c | ||
| fault.h | ||
| file_ops.c | ||
| firmware.c | ||
| hfi.h | ||
| init.c | ||
| intr.c | ||
| iowait.c | ||
| iowait.h | ||
| Kconfig | ||
| mad.c | ||
| mad.h | ||
| Makefile | ||
| mmu_rb.c | ||
| mmu_rb.h | ||
| msix.c | ||
| msix.h | ||
| opa_compat.h | ||
| opfn.c | ||
| opfn.h | ||
| pcie.c | ||
| pio_copy.c | ||
| pio.c | ||
| pio.h | ||
| platform.c | ||
| platform.h | ||
| qp.c | ||
| qp.h | ||
| qsfp.c | ||
| qsfp.h | ||
| rc.c | ||
| rc.h | ||
| ruc.c | ||
| sdma_txreq.h | ||
| sdma.c | ||
| sdma.h | ||
| sysfs.c | ||
| tid_rdma.c | ||
| tid_rdma.h | ||
| trace_ctxts.h | ||
| trace_dbg.h | ||
| trace_ibhdrs.h | ||
| trace_iowait.h | ||
| trace_misc.h | ||
| trace_mmu.h | ||
| trace_rc.h | ||
| trace_rx.h | ||
| trace_tid.h | ||
| trace_tx.h | ||
| trace.c | ||
| trace.h | ||
| uc.c | ||
| ud.c | ||
| user_exp_rcv.c | ||
| user_exp_rcv.h | ||
| user_pages.c | ||
| user_sdma.c | ||
| user_sdma.h | ||
| verbs_txreq.c | ||
| verbs_txreq.h | ||
| verbs.c | ||
| verbs.h | ||
| vnic_main.c | ||
| vnic_sdma.c | ||
| vnic.h | ||