On Thu, Jul 21, 2016 at 11:30 PM, Jim Wilson <jim.wil...@linaro.org> wrote: > On Thu, Jul 21, 2016 at 6:33 PM, Jeffrey Walton <noloa...@gmail.com> wrote: >> I think vfpd32 cpu flag means I have 32 D-registers. The cpu flags >> neon and vfpv3 flags means I want something more than -mfpu=neon-fp16, >> but I'm not sure what that is. > > neon implies vfvp3 and 32 D-registers and asimd/neon support, so that > part is correct. it isn't obvious to me if you have the > half-precision float support. The "half" printed by the kernel means > that half-word loads are supported, which is only false for some > obsolete parts I think. The kernel doesn't appear to be checking to > see if the hardware has half-precision float support or not, so you > can't determine that from /proc/cpuinfo.
Thanks Jim. Is there an arm-msr-tools or similar that has setuid so we can access the MSRs? My thinking is, I can tell people to install arm-msr-tools so we can query for the features directly. I want to avoid telling people to run a test script as root. Jeff _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-toolchain
