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authorRichard Henderson <richard.henderson@linaro.org>2021-05-25 15:58:17 -0700
committerPeter Maydell <peter.maydell@linaro.org>2021-06-03 16:43:26 +0100
commit3c93dfa42c394fdd55684f2fbf24cf2f39b97d47 (patch)
treecc7e22448f0e02d4bcc9d28a424670843d51506a
parent6c47a9053cc2255ec444e0f964abd496fdce6433 (diff)
downloadqemu-arm-3c93dfa42c394fdd55684f2fbf24cf2f39b97d47.tar.gz
target/arm: Enable BFloat16 extensions
Disable BF16 again for !have_neon and !have_vfp during realize. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525225817.400336-13-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--target/arm/cpu.c3
-rw-r--r--target/arm/cpu64.c3
-rw-r--r--target/arm/cpu_tcg.c1
3 files changed, 7 insertions, 0 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 9ad6f5911b..9cddfd6a44 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1473,6 +1473,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
u = cpu->isar.id_isar6;
u = FIELD_DP32(u, ID_ISAR6, JSCVT, 0);
+ u = FIELD_DP32(u, ID_ISAR6, BF16, 0);
cpu->isar.id_isar6 = u;
u = cpu->isar.mvfr0;
@@ -1513,6 +1514,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
t = cpu->isar.id_aa64isar1;
t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 0);
+ t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 0);
t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 0);
cpu->isar.id_aa64isar1 = t;
@@ -1528,6 +1530,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
u = cpu->isar.id_isar6;
u = FIELD_DP32(u, ID_ISAR6, DP, 0);
u = FIELD_DP32(u, ID_ISAR6, FHM, 0);
+ u = FIELD_DP32(u, ID_ISAR6, BF16, 0);
u = FIELD_DP32(u, ID_ISAR6, I8MM, 0);
cpu->isar.id_isar6 = u;
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index d561dc7acc..1c23187d1a 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -661,6 +661,7 @@ static void aarch64_max_initfn(Object *obj)
t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, LRCPC, 2); /* ARMv8.4-RCPC */
t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1);
@@ -708,6 +709,7 @@ static void aarch64_max_initfn(Object *obj)
t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 1);
t = FIELD_DP64(t, ID_AA64ZFR0, AES, 2); /* PMULL */
t = FIELD_DP64(t, ID_AA64ZFR0, BITPERM, 1);
+ t = FIELD_DP64(t, ID_AA64ZFR0, BFLOAT16, 1);
t = FIELD_DP64(t, ID_AA64ZFR0, SHA3, 1);
t = FIELD_DP64(t, ID_AA64ZFR0, SM4, 1);
t = FIELD_DP64(t, ID_AA64ZFR0, I8MM, 1);
@@ -731,6 +733,7 @@ static void aarch64_max_initfn(Object *obj)
u = FIELD_DP32(u, ID_ISAR6, FHM, 1);
u = FIELD_DP32(u, ID_ISAR6, SB, 1);
u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
+ u = FIELD_DP32(u, ID_ISAR6, BF16, 1);
u = FIELD_DP32(u, ID_ISAR6, I8MM, 1);
cpu->isar.id_isar6 = u;
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
index 2e0e508f0e..d2d97115ea 100644
--- a/target/arm/cpu_tcg.c
+++ b/target/arm/cpu_tcg.c
@@ -968,6 +968,7 @@ static void arm_max_initfn(Object *obj)
t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
t = FIELD_DP32(t, ID_ISAR6, SB, 1);
t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
+ t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
cpu->isar.id_isar6 = t;