Re: [PATCH v4 0/9] vsp1: TLB optimisation and DL caching

2017-12-12 Thread Geert Uytterhoeven
Hi Kieran, On Fri, Nov 17, 2017 at 4:47 PM, Kieran Bingham wrote: > Each display list currently allocates an area of DMA memory to store register > settings for the VSP1 to process. Each of these allocations adds pressure to > the IPMMU TLB entries. > > We can reduce the pressure by pre-allocatin

[PATCH v4 0/9] vsp1: TLB optimisation and DL caching

2017-11-17 Thread Kieran Bingham
Each display list currently allocates an area of DMA memory to store register settings for the VSP1 to process. Each of these allocations adds pressure to the IPMMU TLB entries. We can reduce the pressure by pre-allocating larger areas and dividing the area across multiple bodies represented as a