Re: [PATCH v2 1/3] RISC-V: Add basic Zaamo and Zalrsc support

On 6/3/24 3:53 PM, Patrick O'Neill wrote: The A extension has been split into two parts: Zaamo and Zalrsc. This patch adds basic support by making the A extension imply Zaamo and Zalrsc. Zaamo/Zalrsc spec: https://github.com/riscv/riscv-zaamo-zalrsc/tags Ratification: https://jira.riscv.org/b

Re: [PATCH v2 1/3] RISC-V: Add basic Zaamo and Zalrsc support

On Tue, Jun 4, 2024 at 10:31 AM Patrick O'Neill wrote: > > On 6/3/24 20:00, Kito Cheng wrote: > > Hi Patrick: > > One dumb question around Zaamo and Zalrsc, could we still got correct > atomic semantic with only Zaamo or only Zalrsc? I guess Zalrsc only > probably ok, but how about Zaamo only? > >

Re: [PATCH v2 1/3] RISC-V: Add basic Zaamo and Zalrsc support

On 6/3/24 20:00, Kito Cheng wrote: Hi Patrick: One dumb question around Zaamo and Zalrsc, could we still got correct atomic semantic with only Zaamo or only Zalrsc? I guess Zalrsc only probably ok, but how about Zaamo only? This is a very valid question - AFAIK Zalrsc is always correct and Za

Re: [PATCH v2 1/3] RISC-V: Add basic Zaamo and Zalrsc support

Hi Patrick: One dumb question around Zaamo and Zalrsc, could we still got correct atomic semantic with only Zaamo or only Zalrsc? I guess Zalrsc only probably ok, but how about Zaamo only? And another question around authorship: I notice you are listed as co-authored, and signed off by Edwin, but

[PATCH v2 1/3] RISC-V: Add basic Zaamo and Zalrsc support

The A extension has been split into two parts: Zaamo and Zalrsc. This patch adds basic support by making the A extension imply Zaamo and Zalrsc. Zaamo/Zalrsc spec: https://github.com/riscv/riscv-zaamo-zalrsc/tags Ratification: https://jira.riscv.org/browse/RVS-1995 gcc/ChangeLog: * commo