drm/amdkfd: Add SVM range mapped_to_gpu flag

Browse source

To avoid unnecessary unmap SVM range from GPUs if range is not mapped on
GPUs when migrating the range. This flag will also be used to flush TLB
when updating the existing mapping on GPUs.

It is protected by prange->migrate_mutex and mmap read lock in MMU
notifier callback.

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

...

This commit is contained in:

Philip Yang 2022-04-18 21:32:14 -04:00 • committed by Alex Deucher

parent 398bb28389

commit 6b9c63a6eb

2 changed files with 17 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

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

View file

1

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

View file