target/arm: Add ARM_FEATURE_V8_RDM

Not enabled anywhere yet.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180228193125.20577-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 6689089cd2af77dd5c0587ffd74d369443d9038c..3a55fb33a8c6e657695f25901dcd6d49356445e3 100644 (file)
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -553,6 +553,7 @@ static uint32_t get_elf_hwcap(void)
     GET_FEATURE(ARM_FEATURE_V8_SHA512, ARM_HWCAP_A64_SHA512);
     GET_FEATURE(ARM_FEATURE_V8_FP16,
                 ARM_HWCAP_A64_FPHP | ARM_HWCAP_A64_ASIMDHP);
+    GET_FEATURE(ARM_FEATURE_V8_RDM, ARM_HWCAP_A64_ASIMDRDM);
 #undef GET_FEATURE
 
     return hwcaps;

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 72b5668377d9a548c84c86d98bdc0db1198e6fa7..c4d6992f1da055cc3a469de92b889f13ec9c5599 100644 (file)
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1433,6 +1433,7 @@ enum arm_features {
     ARM_FEATURE_V8_SHA3, /* implements SHA3 part of v8 Crypto Extensions */
     ARM_FEATURE_V8_SM3, /* implements SM3 part of v8 Crypto Extensions */
     ARM_FEATURE_V8_SM4, /* implements SM4 part of v8 Crypto Extensions */
+    ARM_FEATURE_V8_RDM, /* implements v8.1 simd round multiply */
     ARM_FEATURE_V8_FP16, /* implements v8.2 half-precision float */
 };