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target/sparc: Remove sparcv7 cpu features

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The oldest supported cpu is the microsparc 1; all other cpus
use CPU_DEFAULT_FEATURES.  Remove the features that must always
be present for sparcv7: FLOAT, SWAP, FLUSH, FSQRT, FMUL.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-10-11 20:34:14 -07:00
parent de1f52032f
commit 5f25b383a8
5 changed files with 11 additions and 57 deletions
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21
target/sparc/cpu.h
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@ -306,17 +306,12 @@ enum {
#undef FEATURE
#ifndef TARGET_SPARC64
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \
CPU_FEATURE_MUL | CPU_FEATURE_DIV | \
CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_MUL | CPU_FEATURE_DIV | \
CPU_FEATURE_FSMULD)
#else
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \
CPU_FEATURE_MUL | CPU_FEATURE_DIV | \
CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 | \
CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \
CPU_FEATURE_CASA)
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_MUL | CPU_FEATURE_DIV | \
CPU_FEATURE_FSMULD | CPU_FEATURE_CASA | \
CPU_FEATURE_VIS1 | CPU_FEATURE_VIS2)
enum {
mmu_us_12, // Ultrasparc < III (64 entry TLB)
mmu_us_3, // Ultrasparc III (512 entry TLB)
@ -799,14 +794,12 @@ static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, vaddr *pc,
if (env->pstate & PS_AM) {
flags |= TB_FLAG_AM_ENABLED;
}
if ((env->def.features & CPU_FEATURE_FLOAT)
&& (env->pstate & PS_PEF)
&& (env->fprs & FPRS_FEF)) {
if ((env->pstate & PS_PEF) && (env->fprs & FPRS_FEF)) {
flags |= TB_FLAG_FPU_ENABLED;
}
flags |= env->asi << TB_FLAG_ASI_SHIFT;
#else
if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) {
if (env->psref) {
flags |= TB_FLAG_FPU_ENABLED;
}
#endif