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[Qemu-devel] [PATCH v5 34/35] target/arm: Enable SVE for aarch64-linux-u
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v5 34/35] target/arm: Enable SVE for aarch64-linux-user |
Date: |
Wed, 20 Jun 2018 15:53:58 -1000 |
Enable ARM_FEATURE_SVE for the generic "max" cpu.
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
target/arm/cpu.c | 7 +++++++
target/arm/cpu64.c | 1 +
2 files changed, 8 insertions(+)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index e1de45e904..8e4f4d8c21 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -164,6 +164,13 @@ static void arm_cpu_reset(CPUState *s)
env->cp15.sctlr_el[1] |= SCTLR_UCT | SCTLR_UCI | SCTLR_DZE;
/* and to the FP/Neon instructions */
env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 2, 3);
+ /* and to the SVE instructions */
+ env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 16, 2, 3);
+ env->cp15.cptr_el[3] |= CPTR_EZ;
+ /* with maximum vector length */
+ env->vfp.zcr_el[1] = ARM_MAX_VQ - 1;
+ env->vfp.zcr_el[2] = ARM_MAX_VQ - 1;
+ env->vfp.zcr_el[3] = ARM_MAX_VQ - 1;
#else
/* Reset into the highest available EL */
if (arm_feature(env, ARM_FEATURE_EL3)) {
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index c50dcd4077..0360d7efc5 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -252,6 +252,7 @@ static void aarch64_max_initfn(Object *obj)
set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
set_feature(&cpu->env, ARM_FEATURE_V8_FP16);
set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
+ set_feature(&cpu->env, ARM_FEATURE_SVE);
/* For usermode -cpu max we can use a larger and more efficient DCZ
* blocksize since we don't have to follow what the hardware does.
*/
--
2.17.1
- Re: [Qemu-devel] [PATCH v5 29/35] target/arm: Implement SVE fp complex multiply add, (continued)
[Qemu-devel] [PATCH v5 30/35] target/arm: Pass index to AdvSIMD FCMLA (indexed), Richard Henderson, 2018/06/20
[Qemu-devel] [PATCH v5 33/35] target/arm: Implement SVE dot product (indexed), Richard Henderson, 2018/06/20
[Qemu-devel] [PATCH v5 34/35] target/arm: Enable SVE for aarch64-linux-user,
Richard Henderson <=
[Qemu-devel] [PATCH v5 32/35] target/arm: Implement SVE dot product (vectors), Richard Henderson, 2018/06/20
[Qemu-devel] [PATCH v5 31/35] target/arm: Implement SVE fp complex multiply add (indexed), Richard Henderson, 2018/06/20
[Qemu-devel] [PATCH v5 35/35] target/arm: Implement ARMv8.2-DotProd, Richard Henderson, 2018/06/20
Re: [Qemu-devel] [PATCH v5 00/35] target/arm SVE patches, no-reply, 2018/06/21
Re: [Qemu-devel] [PATCH v5 00/35] target/arm SVE patches, Alex Bennée, 2018/06/26