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| author | Peter Maydell <peter.maydell@linaro.org> | 2019-02-28 10:55:16 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-02-28 11:03:04 +0000 |
| commit | 602f6e42cfbfe9278be34e9b91d2ceb695837e02 (patch) | |
| tree | fab04e997914a2856797c661155179c0d8ad0155 /target/arm/kvm32.c | |
| parent | aab7a3786f085cb4c6842c3c8ea0c86e2c835248 (diff) | |
| download | qemu-602f6e42cfbfe9278be34e9b91d2ceb695837e02.zip | |
target/arm: Use MVFR1 feature bits to gate A32/T32 FP16 instructions
Instead of gating the A32/T32 FP16 conversion instructions on
the ARM_FEATURE_VFP_FP16 flag, switch to our new approach of
looking at ID register bits. In this case MVFR1 fields FPHP
and SIMDHP indicate the presence of these insns.
This change doesn't alter behaviour for any of our CPUs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190222170936.13268-2-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/kvm32.c')
| -rw-r--r-- | target/arm/kvm32.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/target/arm/kvm32.c b/target/arm/kvm32.c index a75e04cc8f..327375f625 100644 --- a/target/arm/kvm32.c +++ b/target/arm/kvm32.c @@ -125,9 +125,6 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) if (extract32(id_pfr0, 12, 4) == 1) { set_feature(&features, ARM_FEATURE_THUMB2EE); } - if (extract32(ahcf->isar.mvfr1, 20, 4) == 1) { - set_feature(&features, ARM_FEATURE_VFP_FP16); - } if (extract32(ahcf->isar.mvfr1, 12, 4) == 1) { set_feature(&features, ARM_FEATURE_NEON); } |