[libre-riscv-dev] porting AMDVLK to the Libre RISC-V 3D GPU: NLNet EUR 50, 000 Grant application

Luke Kenneth Casson Leighton lkcl at lkcl.net
Wed Sep 25 16:44:05 BST 2019

On Wed, Sep 25, 2019 at 4:03 PM Michael Pham <pham.michael.98 at gmail.com> wrote:

> In the end though, since you are turning the AMD driver into a Libre
> RISC-V version, it might not even matter. But the point of me bringing
> this up is that instead of porting AMDVLK, RADV might be a better base
> to start from. Since Jacob is a graphics expert though, he'll have
> better comments than mine (once he gets back).

yehyeh.  it's not about the performance of RADV or AMDVLK, at the
assembly-level or what-goes-on-the-screen level, it's about whether
the SPIR-V to LLVM-IR code preserves the intrinsics and vectorisation
semantics that we need for the SV Vector Engine.


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