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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Subject: [PATCH 8/8] target/arm: Enable FEAT_EBF16 in the "max" CPU
Date: Tue, 30 Jul 2024 17:03:06 +0100	[thread overview]
Message-ID: <20240730160306.2959745-9-peter.maydell@linaro.org> (raw)
In-Reply-To: <20240730160306.2959745-1-peter.maydell@linaro.org>

Now that we've implemented the required behaviour for FEAT_EBF16, we
can enable it for the "max" CPU type, list it in our documentation,
and delete a TODO comment about it being missing.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 docs/system/arm/emulation.rst  | 1 +
 target/arm/tcg/cpu64.c         | 4 ++--
 target/arm/tcg/translate-sme.c | 1 -
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
index 3ab6e726679..35f52a54b1c 100644
--- a/docs/system/arm/emulation.rst
+++ b/docs/system/arm/emulation.rst
@@ -45,6 +45,7 @@ the following architecture extensions:
 - FEAT_DotProd (Advanced SIMD dot product instructions)
 - FEAT_DoubleFault (Double Fault Extension)
 - FEAT_E0PD (Preventing EL0 access to halves of address maps)
+- FEAT_EBF16 (AArch64 Extended BFloat16 instructions)
 - FEAT_ECV (Enhanced Counter Virtualization)
 - FEAT_EL0 (Support for execution at EL0)
 - FEAT_EL1 (Support for execution at EL1)
diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c
index fe232eb3069..79258a7c928 100644
--- a/target/arm/tcg/cpu64.c
+++ b/target/arm/tcg/cpu64.c
@@ -1160,7 +1160,7 @@ void aarch64_max_tcg_initfn(Object *obj)
     t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);  /* FEAT_FRINTTS */
     t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);       /* FEAT_SB */
     t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);  /* FEAT_SPECRES */
-    t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1);     /* FEAT_BF16 */
+    t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 2);     /* FEAT_BF16, FEAT_EBF16 */
     t = FIELD_DP64(t, ID_AA64ISAR1, DGH, 1);      /* FEAT_DGH */
     t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1);     /* FEAT_I8MM */
     cpu->isar.id_aa64isar1 = t;
@@ -1244,7 +1244,7 @@ void aarch64_max_tcg_initfn(Object *obj)
     t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 1);
     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, 1);  /* FEAT_BF16 */
+    t = FIELD_DP64(t, ID_AA64ZFR0, BFLOAT16, 2);  /* FEAT_BF16, FEAT_EBF16 */
     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 */
diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c
index bcb502feb05..760c200e622 100644
--- a/target/arm/tcg/translate-sme.c
+++ b/target/arm/tcg/translate-sme.c
@@ -354,7 +354,6 @@ TRANS_FEAT(FMOPA_s, aa64_sme, do_outprod_fpst, a,
 TRANS_FEAT(FMOPA_d, aa64_sme_f64f64, do_outprod_fpst, a,
            MO_64, FPST_FPCR, gen_helper_sme_fmopa_d)
 
-/* TODO: FEAT_EBF16 */
 TRANS_FEAT(BFMOPA, aa64_sme, do_outprod_env, a, MO_32, gen_helper_sme_bfmopa)
 
 TRANS_FEAT(SMOPA_s, aa64_sme, do_outprod, a, MO_32, gen_helper_sme_smopa_s)
-- 
2.34.1



  parent reply	other threads:[~2024-07-30 16:04 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-30 16:02 [PATCH 0/8] target/arm: Implement FEAT_EBF16 Peter Maydell
2024-07-30 16:02 ` [PATCH 1/8] target/arm: Allow setting the FPCR.EBF bit for FEAT_EBF16 Peter Maydell
2024-07-31  1:30   ` Richard Henderson
2024-07-30 16:03 ` [PATCH 2/8] target/arm: Pass env pointer through to sme_bfmopa helper Peter Maydell
2024-07-31  1:32   ` Richard Henderson
2024-07-30 16:03 ` [PATCH 3/8] target/arm: Pass env pointer through to gvec_bfdot helper Peter Maydell
2024-07-31  1:36   ` Richard Henderson
2024-07-31 12:31     ` Peter Maydell
2024-07-30 16:03 ` [PATCH 4/8] target/arm: Pass env pointer through to gvec_bfdot_idx helper Peter Maydell
2024-07-31  1:37   ` Richard Henderson
2024-07-30 16:03 ` [PATCH 5/8] target/arm: Pass env pointer through to gvec_bfmmla helper Peter Maydell
2024-07-31  1:38   ` Richard Henderson
2024-07-30 16:03 ` [PATCH 6/8] target/arm: Prepare bfdotadd() callers for FEAT_EBF support Peter Maydell
2024-07-31  1:43   ` Richard Henderson
2024-07-31  1:48   ` Richard Henderson
2024-07-31 12:32     ` Peter Maydell
2024-07-30 16:03 ` [PATCH 7/8] target/arm: Implement FPCR.EBF=1 semantics for bfdotadd() Peter Maydell
2024-07-31  1:50   ` Richard Henderson
2024-07-30 16:03 ` Peter Maydell [this message]
2024-07-31  1:51   ` [PATCH 8/8] target/arm: Enable FEAT_EBF16 in the "max" CPU Richard Henderson

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