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authorRichard Henderson <richard.henderson@linaro.org>2025-07-04 08:21:09 -0600
committerPeter Maydell <peter.maydell@linaro.org>2025-07-04 15:53:23 +0100
commit7b1613a1020d294219867a2cad6b41c46acec8f2 (patch)
tree2bb6636770343d281a0d28484f36a00e5657138c
parent4805911a925ffbf798b29dce50cbb9585fd8e87e (diff)
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target/arm: Enable FEAT_SME2p1 on -cpu max
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20250704142112.1018902-107-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--docs/system/arm/emulation.rst6
-rw-r--r--target/arm/tcg/cpu64.c10
2 files changed, 14 insertions, 2 deletions
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
index 78c2fd2..890dc6f 100644
--- a/docs/system/arm/emulation.rst
+++ b/docs/system/arm/emulation.rst
@@ -129,16 +129,22 @@ the following architecture extensions:
- FEAT_SM3 (Advanced SIMD SM3 instructions)
- FEAT_SM4 (Advanced SIMD SM4 instructions)
- FEAT_SME (Scalable Matrix Extension)
+- FEAT_SME2 (Scalable Matrix Extension version 2)
+- FEAT_SME2p1 (Scalable Matrix Extension version 2.1)
+- FEAT_SME_B16B16 (Non-widening BFloat16 arithmetic for SME2)
- FEAT_SME_FA64 (Full A64 instruction set in Streaming SVE mode)
+- FEAT_SME_F16F16 (Non-widening half-precision FP16 arithmetic for SME2)
- FEAT_SME_F64F64 (Double-precision floating-point outer product instructions)
- FEAT_SME_I16I64 (16-bit to 64-bit integer widening outer product instructions)
- FEAT_SVE (Scalable Vector Extension)
- FEAT_SVE_AES (Scalable Vector AES instructions)
+- FEAT_SVE_B16B16 (Non-widening BFloat16 arithmetic for SVE2)
- FEAT_SVE_BitPerm (Scalable Vector Bit Permutes instructions)
- FEAT_SVE_PMULL128 (Scalable Vector PMULL instructions)
- FEAT_SVE_SHA3 (Scalable Vector SHA3 instructions)
- FEAT_SVE_SM4 (Scalable Vector SM4 instructions)
- FEAT_SVE2 (Scalable Vector Extension version 2)
+- FEAT_SVE2p1 (Scalable Vector Extension version 2.1)
- FEAT_SPECRES (Speculation restriction instructions)
- FEAT_SSBS (Speculative Store Bypass Safe)
- FEAT_SSBS2 (MRS and MSR instructions for SSBS version 2)
diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c
index 937f29e2..d0df50a 100644
--- a/target/arm/tcg/cpu64.c
+++ b/target/arm/tcg/cpu64.c
@@ -1201,7 +1201,7 @@ void aarch64_max_tcg_initfn(Object *obj)
*/
t = FIELD_DP64(t, ID_AA64PFR1, MTE, 3); /* FEAT_MTE3 */
t = FIELD_DP64(t, ID_AA64PFR1, RAS_FRAC, 0); /* FEAT_RASv1p1 + FEAT_DoubleFault */
- t = FIELD_DP64(t, ID_AA64PFR1, SME, 1); /* FEAT_SME */
+ t = FIELD_DP64(t, ID_AA64PFR1, SME, 2); /* FEAT_SME2 */
t = FIELD_DP64(t, ID_AA64PFR1, CSV2_FRAC, 0); /* FEAT_CSV2_3 */
t = FIELD_DP64(t, ID_AA64PFR1, NMI, 1); /* FEAT_NMI */
SET_IDREG(isar, ID_AA64PFR1, t);
@@ -1250,10 +1250,11 @@ void aarch64_max_tcg_initfn(Object *obj)
FIELD_DP64_IDREG(isar, ID_AA64MMFR3, SPEC_FPACC, 1); /* FEAT_FPACC_SPEC */
t = GET_IDREG(isar, ID_AA64ZFR0);
- t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 1);
+ t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 2); /* FEAT_SVE2p1 */
t = FIELD_DP64(t, ID_AA64ZFR0, AES, 2); /* FEAT_SVE_PMULL128 */
t = FIELD_DP64(t, ID_AA64ZFR0, BITPERM, 1); /* FEAT_SVE_BitPerm */
t = FIELD_DP64(t, ID_AA64ZFR0, BFLOAT16, 2); /* FEAT_BF16, FEAT_EBF16 */
+ t = FIELD_DP64(t, ID_AA64ZFR0, B16B16, 1); /* FEAT_SVE_B16B16 */
t = FIELD_DP64(t, ID_AA64ZFR0, SHA3, 1); /* FEAT_SVE_SHA3 */
t = FIELD_DP64(t, ID_AA64ZFR0, SM4, 1); /* FEAT_SVE_SM4 */
t = FIELD_DP64(t, ID_AA64ZFR0, I8MM, 1); /* FEAT_I8MM */
@@ -1269,11 +1270,16 @@ void aarch64_max_tcg_initfn(Object *obj)
t = GET_IDREG(isar, ID_AA64SMFR0);
t = FIELD_DP64(t, ID_AA64SMFR0, F32F32, 1); /* FEAT_SME */
+ t = FIELD_DP64(t, ID_AA64SMFR0, BI32I32, 1); /* FEAT_SME2 */
t = FIELD_DP64(t, ID_AA64SMFR0, B16F32, 1); /* FEAT_SME */
t = FIELD_DP64(t, ID_AA64SMFR0, F16F32, 1); /* FEAT_SME */
t = FIELD_DP64(t, ID_AA64SMFR0, I8I32, 0xf); /* FEAT_SME */
+ t = FIELD_DP64(t, ID_AA64SMFR0, F16F16, 1); /* FEAT_SME_F16F16 */
+ t = FIELD_DP64(t, ID_AA64SMFR0, B16B16, 1); /* FEAT_SME_B16B16 */
+ t = FIELD_DP64(t, ID_AA64SMFR0, I16I32, 5); /* FEAT_SME2 */
t = FIELD_DP64(t, ID_AA64SMFR0, F64F64, 1); /* FEAT_SME_F64F64 */
t = FIELD_DP64(t, ID_AA64SMFR0, I16I64, 0xf); /* FEAT_SME_I16I64 */
+ t = FIELD_DP64(t, ID_AA64SMFR0, SMEVER, 2); /* FEAT_SME2p1 */
t = FIELD_DP64(t, ID_AA64SMFR0, FA64, 1); /* FEAT_SME_FA64 */
SET_IDREG(isar, ID_AA64SMFR0, t);