topperc wrote: > > > > I thought the P550 was supposed to support RV64GCB, but that would > > > > require Zbs support, which isn't listed here. > > > > > > > > > The P550 version in the HiFive Premier board does not support Zbs. ISA > > > string from /proc/cpuinfo is `rv64imafdch_zicsr_zifencei_zba_zbb_sscofpmf` > > > > > > That's weird. Basically, remving `Zbs` won't save any area. Is it because > > the kernel is using wrong device tree without Zbs? > > The hardware does not implement Zbs. SiFive originally announced a P550 based > board 2 years ago. The design has been frozen for a while and Zbs was not > included. It's taken longer than intended to get a board out.
The ISA is specified in this document too https://www.sifive.com/document-file/eic7700x-datasheet available here https://www.sifive.com/boards/hifive-premier-p550 https://github.com/llvm/llvm-project/pull/122164 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
