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target/sparc: Introduce cpu_get_fsr, cpu_put_fsr

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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20231103173841.33651-16-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-11-03 10:38:34 -07:00
parent 41535ca6f4
commit 1ccd6e13cc
9 changed files with 80 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

2
linux-user/sparc/cpu_loop.c
View file

@ -293,7 +293,7 @@ void cpu_loop (CPUSPARCState *env)
case TT_FP_EXCP:
{
int code = TARGET_FPE_FLTUNK;
target_ulong fsr = env->fsr;
target_ulong fsr = cpu_get_fsr(env);
if ((fsr & FSR_FTT_MASK) == FSR_FTT_IEEE_EXCP) {
if (fsr & FSR_NVC) {

14
linux-user/sparc/signal.c
View file

@ -199,20 +199,21 @@ static void save_fpu(struct target_siginfo_fpu *fpu, CPUSPARCState *env)
for (i = 0; i < 32; ++i) {
__put_user(env->fpr[i].ll, &fpu->si_double_regs[i]);
}
__put_user(env->fsr, &fpu->si_fsr);
__put_user(cpu_get_fsr(env), &fpu->si_fsr);
__put_user(env->gsr, &fpu->si_gsr);
__put_user(env->fprs, &fpu->si_fprs);
#else
for (i = 0; i < 16; ++i) {
__put_user(env->fpr[i].ll, &fpu->si_double_regs[i]);
}
__put_user(env->fsr, &fpu->si_fsr);
__put_user(cpu_get_fsr(env), &fpu->si_fsr);
__put_user(0, &fpu->si_fpqdepth);
#endif
}
static void restore_fpu(struct target_siginfo_fpu *fpu, CPUSPARCState *env)
{
target_ulong fsr;
int i;
#ifdef TARGET_SPARC64
@ -230,15 +231,16 @@ static void restore_fpu(struct target_siginfo_fpu *fpu, CPUSPARCState *env)
__get_user(env->fpr[i].ll, &fpu->si_double_regs[i]);
}
}
__get_user(env->fsr, &fpu->si_fsr);
__get_user(env->gsr, &fpu->si_gsr);
env->fprs |= fprs;
#else
for (i = 0; i < 16; ++i) {
__get_user(env->fpr[i].ll, &fpu->si_double_regs[i]);
}
__get_user(env->fsr, &fpu->si_fsr);
#endif
__get_user(fsr, &fpu->si_fsr);
cpu_put_fsr(env, fsr);
}
#ifdef TARGET_ARCH_HAS_SETUP_FRAME
@ -662,6 +664,7 @@ void sparc64_set_context(CPUSPARCState *env)
__get_user(fenab, &(fpup->mcfpu_enab));
if (fenab) {
abi_ulong fprs;
abi_ulong fsr;
/*
* We use the FPRS from the guest only in deciding whether
@ -690,7 +693,8 @@ void sparc64_set_context(CPUSPARCState *env)
__get_user(env->fpr[i].ll, &(fpup->mcfpu_fregs.dregs[i]));
}
}
__get_user(env->fsr, &(fpup->mcfpu_fsr));
__get_user(fsr, &(fpup->mcfpu_fsr));
cpu_put_fsr(env, fsr);
__get_user(env->gsr, &(fpup->mcfpu_gsr));
}
unlock_user_struct(ucp, ucp_addr, 0);