drm/amdkfd: svm range eviction and restore

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HMM interval notifier callback notify CPU page table will be updated,
stop process queues if the updated address belongs to svm range
registered in process svms objects tree. Scheduled restore work to
update GPU page table using new pages address in the updated svm range.

The restore worker flushes any deferred work to make sure it restores
an up-to-date svm_range_list.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Felix Kuehling 2021-02-24 18:47:52 -05:00 • committed by Alex Deucher

parent f80fe9d3c1

commit 8a7c184a16

4 changed files with 140 additions and 0 deletions

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2

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

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1

drivers/gpu/drm/amd/amdkfd/kfd_process.c

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135

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

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2

drivers/gpu/drm/amd/amdkfd/kfd_svm.h

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