Re: [PATCH 5/5] drm/amdgpu: invalidate BO during userptr mapping

2019-12-20 Thread Felix Kuehling
I think this patch is just a proof of concept for now. It should not be submitted because there are still some known locking issues that need to be solved, and we don't have the code yet that handles the recoverable page faults resulting from this. Regards,   Felix On 2019-12-20 1:24, Alex Si

[PATCH 5/5] drm/amdgpu: invalidate BO during userptr mapping

2019-12-19 Thread Alex Sierra
This is required for HMM functionality only on GFXv9 GPU, which supports recoverable page faults. [Why] Instead of stopping all user mode queues during a userptr mapping. The GFXv9 recoverable page fault is used to revalidate userptr mappings. Now, this will be done on the page fault handler. [Ho