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[Qemu-arm] [RFC PATCH 02/30] arm: introduce ARM_V8_FP16 feature bit
From: |
Alex Bennée |
Subject: |
[Qemu-arm] [RFC PATCH 02/30] arm: introduce ARM_V8_FP16 feature bit |
Date: |
Fri, 13 Oct 2017 17:24:10 +0100 |
---
target/arm/cpu.h | 1 +
target/arm/cpu64.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 89d49cdcb2..3a0f27c782 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1340,6 +1340,7 @@ enum arm_features {
ARM_FEATURE_VBAR, /* has cp15 VBAR */
ARM_FEATURE_M_SECURITY, /* M profile Security Extension */
ARM_FEATURE_JAZELLE, /* has (trivial) Jazelle implementation */
+ ARM_FEATURE_V8_FP16, /* implements v8.2 half-precision float */
};
static inline int arm_feature(CPUARMState *env, int feature)
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 670c07ab6e..973614dfc6 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -226,6 +226,7 @@ static void aarch64_any_initfn(Object *obj)
set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
set_feature(&cpu->env, ARM_FEATURE_CRC);
+ set_feature(&cpu->env, ARM_FEATURE_V8_FP16);
cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
cpu->dcz_blocksize = 7; /* 512 bytes */
}
--
2.14.1
- [Qemu-arm] [RFC PATCH 00/30] v8.2 half-precision support (work-in-progress), Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 03/30] include/exec/helper-head.h: support f16 in helper calls, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 04/30] target/arm/cpu.h: update comment for half-precision values, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 02/30] arm: introduce ARM_V8_FP16 feature bit,
Alex Bennée <=
- [Qemu-arm] [RFC PATCH 01/30] linux-user/main: support dfilter, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 06/30] fpu/softfloat: implement float16_squash_input_denormal, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 07/30] fpu/softfloat: implement float16_abs helper, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 08/30] softfloat: add half-precision expansions for MINMAX fns, Alex Bennée, 2017/10/13