Re: Kernel and ADM hardware roulette ( was AMD graphics performance regression in 4.15 and later )

I think the prime issue is that dma_direct_alloc respects the dma mask. Which we don't need if actually using the iommu. This would be mostly harmless exept for the the SEV bit high in the address that makes the checks fail. For now I'd say revert this commit for 4.17/4.18-rc and I'll look into

Re: Kernel and ADM hardware roulette ( was AMD graphics performance regression in 4.15 and later )

Am 06.06.2018 um 16:12 schrieb Michel Dänzer: On 2018-06-06 03:33 PM, Gabriel C wrote: 2018-06-06 14:19 GMT+02:00 Christian König : Am 06.06.2018 um 14:08 schrieb Gabriel C: 2018-06-06 13:33 GMT+02:00 Christian König : Am 06.06.2018 um 13:28 schrieb Gabriel C: 2018-04-11 7:02 GMT+02:00 Gabri