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target/arm: Convert sve from feature bit to aa64pfr0 test

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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-8-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson
2018-10-24 07:50:17 +01:00
committed by Peter Maydell
parent 09cbd50198
commit cd208a1c39
8 changed files with 37 additions and 16 deletions
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10
linux-user/syscall.c
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@@ -9544,7 +9544,7 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
* even though the current architectural maximum is VQ=16.
*/
ret = -TARGET_EINVAL;
if (arm_feature(cpu_env, ARM_FEATURE_SVE)
if (cpu_isar_feature(aa64_sve, arm_env_get_cpu(cpu_env))
&& arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
CPUARMState *env = cpu_env;
ARMCPU *cpu = arm_env_get_cpu(env);
@@ -9563,9 +9563,11 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
return ret;
case TARGET_PR_SVE_GET_VL:
ret = -TARGET_EINVAL;
if (arm_feature(cpu_env, ARM_FEATURE_SVE)) {
CPUARMState *env = cpu_env;
ret = ((env->vfp.zcr_el[1] & 0xf) + 1) * 16;
{
ARMCPU *cpu = arm_env_get_cpu(cpu_env);
if (cpu_isar_feature(aa64_sve, cpu)) {
ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
}
}
return ret;
#endif /* AARCH64 */