Re: [PATCH v2 3/4] drm/ttm, drm/vmwgfx: Correctly support support AMD memory encryption

From: Thomas HellstrÃm (VMware)
Date: Wed Sep 04 2019 - 09:06:07 EST

On 9/4/19 2:35 PM, Thomas HellstrÃm (VMware) wrote:

I've already talked with Christoph that we probably want to switch TTM
over to using that instead to also get rid of the ttm_io_prot() hack.

OK, would that mean us ditching other memory modes completely? And on-the-fly caching transitions? or is it just for the special case of cached coherent memory? Do we need to cache the coherent kernel mappings in TTM as well, for ttm_bo_kmap()?

Reading this again, I wanted to point out that I'm not against this. Just curious.