target/arm: Implement FEAT_CSSC, FEAT_CMPBR

[PATCH 01/11] target/arm: Add feature predicate for FEAT_CSSC

Posted by Richard Henderson 3 months, 2 weeks ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/cpu-features.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/arm/cpu-features.h b/target/arm/cpu-features.h
index 5876162428..f12c5c8be7 100644
--- a/target/arm/cpu-features.h
+++ b/target/arm/cpu-features.h
@@ -604,6 +604,11 @@ static inline bool isar_feature_aa64_rpres(const ARMISARegisters *id)
     return FIELD_EX64_IDREG(id, ID_AA64ISAR2, RPRES);
 }
 
+static inline bool isar_feature_aa64_cssc(const ARMISARegisters *id)
+{
+    return FIELD_EX64_IDREG(id, ID_AA64ISAR2, CSSC) != 0;
+}
+
 static inline bool isar_feature_aa64_lut(const ARMISARegisters *id)
 {
     return FIELD_EX64_IDREG(id, ID_AA64ISAR2, LUT);
-- 
2.43.0

Re: [PATCH 01/11] target/arm: Add feature predicate for FEAT_CSSC

Posted by Peter Maydell 3 months ago

On Sun, 3 Aug 2025 at 02:40, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/arm/cpu-features.h | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/target/arm/cpu-features.h b/target/arm/cpu-features.h
> index 5876162428..f12c5c8be7 100644
> --- a/target/arm/cpu-features.h
> +++ b/target/arm/cpu-features.h
> @@ -604,6 +604,11 @@ static inline bool isar_feature_aa64_rpres(const ARMISARegisters *id)
>      return FIELD_EX64_IDREG(id, ID_AA64ISAR2, RPRES);
>  }
>
> +static inline bool isar_feature_aa64_cssc(const ARMISARegisters *id)
> +{
> +    return FIELD_EX64_IDREG(id, ID_AA64ISAR2, CSSC) != 0;
> +}
> +
>  static inline bool isar_feature_aa64_lut(const ARMISARegisters *id)
>  {
>      return FIELD_EX64_IDREG(id, ID_AA64ISAR2, LUT);
> --
> 2.43.0

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM