[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 06/71] target/arm: Use el_is_in_host for sve_zcr_len_for_el
From: |
Richard Henderson |
Subject: |
[PATCH 06/71] target/arm: Use el_is_in_host for sve_zcr_len_for_el |
Date: |
Thu, 2 Jun 2022 14:47:48 -0700 |
The ARM pseudocode function NVL uses this predicate now,
and I think it's a bit clearer. Simplify the pseudocode
condition by noting that IsInHost is always false for EL1.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 839d6401b0..135c3e790c 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6248,8 +6248,7 @@ uint32_t sve_zcr_len_for_el(CPUARMState *env, int el)
ARMCPU *cpu = env_archcpu(env);
uint32_t zcr_len = cpu->sve_max_vq - 1;
- if (el <= 1 &&
- (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) {
+ if (el <= 1 && !el_is_in_host(env, el)) {
zcr_len = MIN(zcr_len, 0xf & (uint32_t)env->vfp.zcr_el[1]);
}
if (el <= 2 && arm_feature(env, ARM_FEATURE_EL2)) {
--
2.34.1
- [PATCH 00/71] target/arm: Scalable Matrix Extension, Richard Henderson, 2022/06/02
- [PATCH 02/71] linux-user/aarch64: Introduce sve_vq_cached, Richard Henderson, 2022/06/02
- [PATCH 01/71] target/arm: Rename TBFLAG_A64 ZCR_LEN to VL, Richard Henderson, 2022/06/02
- [PATCH 04/71] target/arm: Remove fp checks from sve_exception_el, Richard Henderson, 2022/06/02
- [PATCH 06/71] target/arm: Use el_is_in_host for sve_zcr_len_for_el,
Richard Henderson <=
- [PATCH 03/71] target/arm: Remove route_to_el2 check from sve_exception_el, Richard Henderson, 2022/06/02
- [PATCH 08/71] target/arm: Hoist arm_is_el2_enabled check in sve_exception_el, Richard Henderson, 2022/06/02
- [PATCH 09/71] target/arm: Do not use aarch64_sve_zcr_get_valid_len in reset, Richard Henderson, 2022/06/02
- [PATCH 07/71] target/arm: Use el_is_in_host for sve_exception_el, Richard Henderson, 2022/06/02
- [PATCH 05/71] target/arm: Add el_is_in_host, Richard Henderson, 2022/06/02
- [PATCH 10/71] target/arm: Merge aarch64_sve_zcr_get_valid_len into caller, Richard Henderson, 2022/06/02