From: Aleksandar Rakic <[email protected]> Enable MSA ASE using a CLI flag -cpu <cpu>,msa=on.
Signed-off-by: Aleksandar Rakic <[email protected]> --- target/mips/cpu.c | 16 ++++++++++++++++ target/mips/cpu.h | 1 + target/mips/internal.h | 2 +- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/target/mips/cpu.c b/target/mips/cpu.c index d0a43b6d5c..8e12d303de 100644 --- a/target/mips/cpu.c +++ b/target/mips/cpu.c @@ -494,8 +494,24 @@ static void mips_cpu_realizefn(DeviceState *dev, Error **errp) mcc->parent_realize(dev, errp); } +static bool mips_get_msa_on(Object *obj, Error **errp) +{ + MIPSCPU *cpu = MIPS_CPU(obj); + CPUMIPSState *env = &cpu->env; + return env->msa_on; +} + +static void mips_set_msa_on(Object *obj, bool value, Error **errp) +{ + MIPSCPU *cpu = MIPS_CPU(obj); + CPUMIPSState *env = &cpu->env; + env->msa_on = value; +} + static void mips_cpu_initfn(Object *obj) { + object_property_add_bool(obj, "msa", mips_get_msa_on, mips_set_msa_on); + object_property_set_bool(obj, "msa", false, NULL); MIPSCPU *cpu = MIPS_CPU(obj); CPUMIPSState *env = &cpu->env; MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj); diff --git a/target/mips/cpu.h b/target/mips/cpu.h index f6877ece8b..3e636535c6 100644 --- a/target/mips/cpu.h +++ b/target/mips/cpu.h @@ -1191,6 +1191,7 @@ typedef struct CPUArchState { QEMUTimer *timer; /* Internal timer */ Clock *count_clock; /* CP0_Count clock */ target_ulong exception_base; /* ExceptionBase input to the core */ + bool msa_on; /* Enable MSA using a CLI flag -cpu ...,msa=on/off */ } CPUMIPSState; /** diff --git a/target/mips/internal.h b/target/mips/internal.h index 91c786cff8..bbe2acffe2 100644 --- a/target/mips/internal.h +++ b/target/mips/internal.h @@ -399,7 +399,7 @@ static inline void compute_hflags(CPUMIPSState *env) } } if (ase_msa_available(env)) { - if (env->CP0_Config5 & (1 << CP0C5_MSAEn)) { + if ((env->CP0_Config5 & (1 << CP0C5_MSAEn)) || (env->msa_on)) { env->hflags |= MIPS_HFLAG_MSA; } } -- 2.34.1
