| Message ID | 20180227183958.15167-1-peter.maydell@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | linux-user: Report AArch64 FP16 support via hwcap bits | expand |
On 02/27/2018 10:39 AM, Peter Maydell wrote: > Set the appropriate Linux hwcap bits to tell the guest binary if we > have implemented half-precision floating point support. > > Signed-off-by: Peter Maydell <peter.maydell@linaro.org> > --- > This is intended to go after Alex's FP16 stuff since it > uses the ARM_FEATURE_V8_FP16 bit that defines. > There is as yet no kernel definition of an AArch32 hwcap > bit to report FP16. > > Based-on: <20180227143852.11175-1-alex.bennee@linaro.org> > > linux-user/elfload.c | 2 ++ > 1 file changed, 2 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 8bb9a2c3e8..80f1b32fbe 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -551,6 +551,8 @@ static uint32_t get_elf_hwcap(void) GET_FEATURE(ARM_FEATURE_V8_SM3, ARM_HWCAP_A64_SM3); GET_FEATURE(ARM_FEATURE_V8_SM4, ARM_HWCAP_A64_SM4); GET_FEATURE(ARM_FEATURE_V8_SHA512, ARM_HWCAP_A64_SHA512); + GET_FEATURE(ARM_FEATURE_V8_FP16, + ARM_HWCAP_A64_FPHP | ARM_HWCAP_A64_ASIMDHP); #undef GET_FEATURE return hwcaps;
Set the appropriate Linux hwcap bits to tell the guest binary if we have implemented half-precision floating point support. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- This is intended to go after Alex's FP16 stuff since it uses the ARM_FEATURE_V8_FP16 bit that defines. There is as yet no kernel definition of an AArch32 hwcap bit to report FP16. Based-on: <20180227143852.11175-1-alex.bennee@linaro.org> linux-user/elfload.c | 2 ++ 1 file changed, 2 insertions(+)