[Bug 110929] sw_init of IP block <vega10_ih> failed -12 when using Secure Memory Encryption (SME) with Vega 64

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110929

--- Comment #1 from John Bridgman <john.bridgman at amd.com> ---
How are you enabling SME - transparent mode (via SBIOS I think) where all pages
are encrypted, or <whatever you call the other mode> via OS where only pages
with PA bit 47 set are encrypted ? 

I would not expect the first option to work since anything written from CPU to
GPU will get garbled by the encryption, but the second should work as long as
no buffers passed to or allocated by GPU driver are encrypted. 

I haven't used SME so not sure about options - wasn't aware we even enabled it
on Ryzen parts, thought it was Epyc only.

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