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target/arm: Enable FPU for Cortex-M4 and Cortex-M33

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Enable the FPU by default for the Cortex-M4 and Cortex-M33.

Backports commit 14fd0c31e26b88a2189b3f459b864d5e1faf302a from qemu
This commit is contained in:
Peter Maydell 2019-04-30 11:29:24 -04:00 committed by Lioncash
parent 77ae3982b4
commit d4549fccfb
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 8 additions and 0 deletions
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8
qemu/target/arm/cpu.c
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@ -1190,8 +1190,12 @@ static void cortex_m4_initfn(struct uc_struct *uc, Object *obj, void *opaque)
set_feature(&cpu->env, ARM_FEATURE_M);
set_feature(&cpu->env, ARM_FEATURE_M_MAIN);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
cpu->midr = 0x410fc240; /* r0p0 */
cpu->pmsav7_dregion = 8;
cpu->isar.mvfr0 = 0x10110021;
cpu->isar.mvfr1 = 0x11000011;
cpu->isar.mvfr2 = 0x00000000;
cpu->id_pfr0 = 0x00000030;
cpu->id_pfr1 = 0x00000200;
cpu->id_dfr0 = 0x00100000;
@ -1218,9 +1222,13 @@ static void cortex_m33_initfn(struct uc_struct *uc, Object *obj, void *opaque)
set_feature(&cpu->env, ARM_FEATURE_M_MAIN);
set_feature(&cpu->env, ARM_FEATURE_M_SECURITY);
set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
cpu->midr = 0x410fd213; /* r0p3 */
cpu->pmsav7_dregion = 16;
cpu->sau_sregion = 8;
cpu->isar.mvfr0 = 0x10110021;
cpu->isar.mvfr1 = 0x11000011;
cpu->isar.mvfr2 = 0x00000040;
cpu->id_pfr0 = 0x00000030;
cpu->id_pfr1 = 0x00000210;
cpu->id_dfr0 = 0x00200000;