Re: [Mesa-dev] [PATCH] gallium: Disable Altivec on PPC SPE variants

2018-07-02 Thread Stuart Young
Possibly you might be right. If so, I suspect it'll just continue to languish in Debian I will point out that this isn't quite your typical PowerPC core, and quite a bit was hacked out to implement the Signal Processing Engine by Freescale when it was created. I will also note that while the core

Re: [Mesa-dev] [PATCH] gallium: Disable Altivec on PPC SPE variants

2018-07-02 Thread Michel Dänzer
On 2018-07-01 08:36 AM, Stuart Young wrote: > PowerPC variants with the Signal Processing Engine do not support > Altivec instructions, as the SPE instruction set uses the same > instruction codes as the Altivec set available in most PowerPC > cores. Note that this is not related to the "Synergisti

Re: [Mesa-dev] [PATCH] gallium: Disable Altivec on PPC SPE variants

2018-06-30 Thread Stuart Young
Further info on this: The original patch in Debian is at https://sources.debian.org/src/mesa/18.1.2-1/debian/patches/07_gallium-fix-build-failure-on-powerpcspe.diff/ (URL will change based on version of Mesa in Debian - URL is current when I sent this email). PowerPCSPE port page in Debian which

[Mesa-dev] [PATCH] gallium: Disable Altivec on PPC SPE variants

2018-06-30 Thread Stuart Young
PowerPC variants with the Signal Processing Engine do not support Altivec instructions, as the SPE instruction set uses the same instruction codes as the Altivec set available in most PowerPC cores. Note that this is not related to the "Synergistic Processing Element" units on IBM Cell microprocess