mirror of
https://git.proxmox.com/git/mirror_ubuntu-kernels.git
synced 2026-01-02 20:12:30 +00:00
373e3ccd85
Retry fault interrupt maybe pending in IH ring after GPU page table is updated to recover the vm fault, because each page of the range generate retry fault interrupt. There is race if application unmap range to remove and free the range first and then retry fault work restore_pages handle the retry fault interrupt, because range can not be found, this vm fault can not be recovered and report incorrect GPU vm fault to application. Before unmap to remove and free range, drain retry fault interrupt from IH ring1 to ensure no retry fault comes after the range is removed. Drain retry fault interrupt skip the range which is on deferred list to remove, or the range is child range, which is split by unmap, does not add to svms and have interval notifier. 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> |
||
|---|---|---|
| .. | ||
| acp | ||
| amdgpu | ||
| amdkfd | ||
| display | ||
| include | ||
| pm | ||