From 8c8efa143da01b6b2766802cdc8391100483e05f Mon Sep 17 00:00:00 2001 From: lkcl Date: Thu, 25 Mar 2021 21:32:18 +0000 Subject: [PATCH] --- openpower/ISA_WG/Board_letter_26mar2021.mdwn | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/openpower/ISA_WG/Board_letter_26mar2021.mdwn b/openpower/ISA_WG/Board_letter_26mar2021.mdwn index 512ed5cb2..6ade16309 100644 --- a/openpower/ISA_WG/Board_letter_26mar2021.mdwn +++ b/openpower/ISA_WG/Board_letter_26mar2021.mdwn @@ -37,7 +37,9 @@ The problem is that our Bit-Manipulation Extension alone, needed for Audio/Video http://libre-soc.org/openpower/bitmanip -More than that, these are all "general-purpose" opcodes with uses far beyond LibreSOC's use-case (notwithstanding LibreSOC's use-case itself being by definition general-purpose). More than that, given that LibreSOC is targeting high-profile mass-volume general-purpose computing, it is our duty and responsibility to ensure that use of EXT22 does not result in end-user developer pressure for upstream tool-chains to override the OPF's remit, by *unintentionally* de-facto dominating (effectively allocating) EXT22 for LibreSOC use simply by popular overwhelming end-user demand, outside of everyone's control. +More than that, these are all "general-purpose" opcodes with uses far beyond LibreSOC's use-case (notwithstanding LibreSOC's use-case itself being by definition general-purpose). + +More than that, going far beyond the "letter" of our obligations to respect the stability of the OpenPOWER ecosystem, given that LibreSOC is targeting high-profile mass-volume general-purpose computing, it is our duty and responsibility to ensure that use of EXT22 does not result in end-user developer pressure for upstream tool-chains to override the OPF's remit, by *unintentionally* de-facto dominating EXT22 for LibreSOC use simply by popular overwhelming end-user demand, outside of everyone's control. The advice in the PowerISA v3.0C document therefore *require* us to contact the OpenPOWER Foundation, to initiate the process of including our opcodes, and SVP64, in the OpenPOWER ISA. -- 2.30.2