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target/sparc: Implement IMA extension 

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-11-04 19:40:36 -07:00
parent deadbb14ba
commit 68a414e99d
5 changed files with 32 additions and 0 deletions
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1
linux-user/elfload.c
View File

@ -1005,6 +1005,7 @@ static uint32_t get_elf_hwcap(void)
r |= features & CPU_FEATURE_VIS2 ? HWCAP_SPARC_VIS2 : 0;
r |= features & CPU_FEATURE_FMAF ? HWCAP_SPARC_FMAF : 0;
r |= features & CPU_FEATURE_VIS3 ? HWCAP_SPARC_VIS3 : 0;
r |= features & CPU_FEATURE_IMA ? HWCAP_SPARC_IMA : 0;
#endif
return r;

1
target/sparc/cpu-feature.h.inc
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@ -14,3 +14,4 @@ FEATURE(POWERDOWN)
FEATURE(CASA)
FEATURE(FMAF)
FEATURE(VIS3)
FEATURE(IMA)

3
target/sparc/cpu.c
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@ -551,6 +551,7 @@ static const char * const feature_name[] = {
[CPU_FEATURE_BIT_VIS2] = "vis2",
[CPU_FEATURE_BIT_FMAF] = "fmaf",
[CPU_FEATURE_BIT_VIS3] = "vis3",
[CPU_FEATURE_BIT_IMA] = "ima",
#else
[CPU_FEATURE_BIT_MUL] = "mul",
[CPU_FEATURE_BIT_DIV] = "div",
@ -883,6 +884,8 @@ static Property sparc_cpu_properties[] = {
CPU_FEATURE_BIT_FMAF, false),
DEFINE_PROP_BIT("vis3", SPARCCPU, env.def.features,
CPU_FEATURE_BIT_VIS3, false),
DEFINE_PROP_BIT("ima", SPARCCPU, env.def.features,
CPU_FEATURE_BIT_IMA, false),
#else
DEFINE_PROP_BIT("mul", SPARCCPU, env.def.features,
CPU_FEATURE_BIT_MUL, false),

3
target/sparc/insns.decode
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@ -525,6 +525,9 @@ FCMPEq 10 000 cc:2 110101 ..... 0 0101 0111 ..... \
FNMSUBd 10 ..... 110111 ..... ..... 1010 ..... @d_d_d_d
FNMADDs 10 ..... 110111 ..... ..... 1101 ..... @r_r_r_r
FNMADDd 10 ..... 110111 ..... ..... 1110 ..... @d_d_d_d
FPMADDX 10 ..... 110111 ..... ..... 0000 ..... @d_d_d_d
FPMADDXHI 10 ..... 110111 ..... ..... 0100 ..... @d_d_d_d
]
NCP 10 ----- 110111 ----- --------- ----- # v8 CPop2
}

24
target/sparc/translate.c
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@ -589,6 +589,26 @@ static void gen_op_umulxhi(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_mulu2_tl(discard, dst, src1, src2);
}
static void gen_op_fpmaddx(TCGv_i64 dst, TCGv_i64 src1,
TCGv_i64 src2, TCGv_i64 src3)
{
TCGv_i64 t = tcg_temp_new_i64();
tcg_gen_mul_i64(t, src1, src2);
tcg_gen_add_i64(dst, src3, t);
}
static void gen_op_fpmaddxhi(TCGv_i64 dst, TCGv_i64 src1,
TCGv_i64 src2, TCGv_i64 src3)
{
TCGv_i64 l = tcg_temp_new_i64();
TCGv_i64 h = tcg_temp_new_i64();
TCGv_i64 z = tcg_constant_i64(0);
tcg_gen_mulu2_i64(l, h, src1, src2);
tcg_gen_add2_i64(l, dst, l, h, src3, z);
}
static void gen_op_sdiv(TCGv dst, TCGv src1, TCGv src2)
{
#ifdef TARGET_SPARC64
@ -2405,6 +2425,7 @@ static int extract_qfpreg(DisasContext *dc, int x)
# define avail_FMAF(C) ((C)->def->features & CPU_FEATURE_FMAF)
# define avail_GL(C) ((C)->def->features & CPU_FEATURE_GL)
# define avail_HYPV(C) ((C)->def->features & CPU_FEATURE_HYPV)
# define avail_IMA(C) ((C)->def->features & CPU_FEATURE_IMA)
# define avail_VIS1(C) ((C)->def->features & CPU_FEATURE_VIS1)
# define avail_VIS2(C) ((C)->def->features & CPU_FEATURE_VIS2)
# define avail_VIS3(C) ((C)->def->features & CPU_FEATURE_VIS3)
@ -2420,6 +2441,7 @@ static int extract_qfpreg(DisasContext *dc, int x)
# define avail_FMAF(C) false
# define avail_GL(C) false
# define avail_HYPV(C) false
# define avail_IMA(C) false
# define avail_VIS1(C) false
# define avail_VIS2(C) false
# define avail_VIS3(C) false
@ -5202,6 +5224,8 @@ TRANS(FMADDd, FMAF, do_dddd, a, gen_op_fmaddd)
TRANS(FMSUBd, FMAF, do_dddd, a, gen_op_fmsubd)
TRANS(FNMSUBd, FMAF, do_dddd, a, gen_op_fnmsubd)
TRANS(FNMADDd, FMAF, do_dddd, a, gen_op_fnmaddd)
TRANS(FPMADDX, IMA, do_dddd, a, gen_op_fpmaddx)
TRANS(FPMADDXHI, IMA, do_dddd, a, gen_op_fpmaddxhi)
static bool do_env_qqq(DisasContext *dc, arg_r_r_r *a,
void (*func)(TCGv_i128, TCGv_env, TCGv_i128, TCGv_i128))