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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-06-29 15:11:15 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-06-29 15:11:15 +0100 |
| commit | 802ac0e1e956f3b34a7cb0eda4ec28a60aa87a0a (patch) | |
| tree | ea416f0f5f93e06a58e58a0c3eb57e24beac9503 | |
| parent | 16fcfdc7325649b187ac489f3ae0b0d2a20b6230 (diff) | |
| download | qemu-802ac0e1e956f3b34a7cb0eda4ec28a60aa87a0a.zip | |
target/arm: Enable SVE for aarch64-linux-user
Enable ARM_FEATURE_SVE for the generic "max" cpu.
Tested-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: 20180627043328.11531-35-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | linux-user/elfload.c | 1 | ||||
| -rw-r--r-- | target/arm/cpu.c | 7 | ||||
| -rw-r--r-- | target/arm/cpu64.c | 1 |
3 files changed, 9 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 13bc78d0c8..d1231ad07a 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -584,6 +584,7 @@ static uint32_t get_elf_hwcap(void) GET_FEATURE(ARM_FEATURE_V8_ATOMICS, ARM_HWCAP_A64_ATOMICS); GET_FEATURE(ARM_FEATURE_V8_RDM, ARM_HWCAP_A64_ASIMDRDM); GET_FEATURE(ARM_FEATURE_V8_FCMA, ARM_HWCAP_A64_FCMA); + GET_FEATURE(ARM_FEATURE_SVE, ARM_HWCAP_A64_SVE); #undef GET_FEATURE return hwcaps; diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 2ae4fffafb..6dcc552e14 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. */ |