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target/ppc: Implement Vector Extract Double to VSR using GPR index insns

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Implement the following PowerISA v3.1 instructions:
vextdubvlx: Vector Extract Double Unsigned Byte to VSR using
            GPR-specified Left-Index
vextduhvlx: Vector Extract Double Unsigned Halfword to VSR using
            GPR-specified Left-Index
vextduwvlx: Vector Extract Double Unsigned Word to VSR using
            GPR-specified Left-Index
vextddvlx: Vector Extract Double Doubleword to VSR using
           GPR-specified Left-Index
vextdubvrx: Vector Extract Double Unsigned Byte to VSR using
            GPR-specified Right-Index
vextduhvrx: Vector Extract Double Unsigned Halfword to VSR using
            GPR-specified Right-Index
vextduwvrx: Vector Extract Double Unsigned Word to VSR using
            GPR-specified Right-Index
vextddvrx: Vector Extract Double Doubleword to VSR using
           GPR-specified Right-Index

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211104123719.323713-10-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Matheus Ferst 2021-11-04 09:37:03 -03:00 committed by David Gibson
parent b422c2cb52
commit 28110b72a8
4 changed files with 92 additions and 0 deletions
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4
target/ppc/helper.h
View File

@ -334,6 +334,10 @@ DEF_HELPER_2(vextuwlx, tl, tl, avr)
DEF_HELPER_2(vextubrx, tl, tl, avr)
DEF_HELPER_2(vextuhrx, tl, tl, avr)
DEF_HELPER_2(vextuwrx, tl, tl, avr)
DEF_HELPER_5(VEXTDUBVLX, void, env, avr, avr, avr, tl)
DEF_HELPER_5(VEXTDUHVLX, void, env, avr, avr, avr, tl)
DEF_HELPER_5(VEXTDUWVLX, void, env, avr, avr, avr, tl)
DEF_HELPER_5(VEXTDDVLX, void, env, avr, avr, avr, tl)
DEF_HELPER_2(vsbox, void, avr, avr)
DEF_HELPER_3(vcipher, void, avr, avr, avr)

12
target/ppc/insn32.decode
View File

@ -38,6 +38,9 @@
%dx_d 6:s10 16:5 0:1
@DX ...... rt:5 ..... .......... ..... . &DX d=%dx_d
&VA vrt vra vrb rc
@VA ...... vrt:5 vra:5 vrb:5 rc:5 ...... &VA
&VN vrt vra vrb sh
@VN ...... vrt:5 vra:5 vrb:5 .. sh:3 ...... &VN
@ -347,6 +350,15 @@ VPEXTD 000100 ..... ..... ..... 10110001101 @VX
## Vector Permute and Formatting Instruction
VEXTDUBVLX 000100 ..... ..... ..... ..... 011000 @VA
VEXTDUBVRX 000100 ..... ..... ..... ..... 011001 @VA
VEXTDUHVLX 000100 ..... ..... ..... ..... 011010 @VA
VEXTDUHVRX 000100 ..... ..... ..... ..... 011011 @VA
VEXTDUWVLX 000100 ..... ..... ..... ..... 011100 @VA
VEXTDUWVRX 000100 ..... ..... ..... ..... 011101 @VA
VEXTDDVLX 000100 ..... ..... ..... ..... 011110 @VA
VEXTDDVRX 000100 ..... ..... ..... ..... 011111 @VA
VINSERTB 000100 ..... - .... ..... 01100001101 @VX_uim4
VINSERTH 000100 ..... - .... ..... 01101001101 @VX_uim4
VINSERTW 000100 ..... - .... ..... 01110001101 @VX_uim4

39
target/ppc/int_helper.c
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@ -1642,6 +1642,45 @@ VINSX(D, uint64_t)
#undef ELEM_ADDR
#undef VINSX
#if defined(HOST_WORDS_BIGENDIAN)
#define VEXTDVLX(NAME, SIZE) \
void helper_##NAME(CPUPPCState *env, ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, \
target_ulong index) \
{ \
const target_long idx = index; \
ppc_avr_t tmp[2] = { *a, *b }; \
memset(t, 0, sizeof(*t)); \
if (idx >= 0 && idx + SIZE <= sizeof(tmp)) { \
memcpy(&t->u8[ARRAY_SIZE(t->u8) / 2 - SIZE], (void *)tmp + idx, SIZE); \
} else { \
qemu_log_mask(LOG_GUEST_ERROR, "Invalid index for " #NAME " after 0x" \
TARGET_FMT_lx ", RC = " TARGET_FMT_ld " > %d\n", \
env->nip, idx < 0 ? SIZE - idx : idx, 32 - SIZE); \
} \
}
#else
#define VEXTDVLX(NAME, SIZE) \
void helper_##NAME(CPUPPCState *env, ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, \
target_ulong index) \
{ \
const target_long idx = index; \
ppc_avr_t tmp[2] = { *b, *a }; \
memset(t, 0, sizeof(*t)); \
if (idx >= 0 && idx + SIZE <= sizeof(tmp)) { \
memcpy(&t->u8[ARRAY_SIZE(t->u8) / 2], \
(void *)tmp + sizeof(tmp) - SIZE - idx, SIZE); \
} else { \
qemu_log_mask(LOG_GUEST_ERROR, "Invalid index for " #NAME " after 0x" \
TARGET_FMT_lx ", RC = " TARGET_FMT_ld " > %d\n", \
env->nip, idx < 0 ? SIZE - idx : idx, 32 - SIZE); \
} \
}
#endif
VEXTDVLX(VEXTDUBVLX, 1)
VEXTDVLX(VEXTDUHVLX, 2)
VEXTDVLX(VEXTDUWVLX, 4)
VEXTDVLX(VEXTDDVLX, 8)
#undef VEXTDVLX
#if defined(HOST_WORDS_BIGENDIAN)
#define VEXTRACT(suffix, element) \
void helper_vextract##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t index) \
{ \

37
target/ppc/translate/vmx-impl.c.inc
View File

@ -1228,6 +1228,43 @@ GEN_VXFORM_DUAL(vsplth, PPC_ALTIVEC, PPC_NONE,
GEN_VXFORM_DUAL(vspltw, PPC_ALTIVEC, PPC_NONE,
vextractuw, PPC_NONE, PPC2_ISA300);
static bool do_vextdx(DisasContext *ctx, arg_VA *a, int size, bool right,
void (*gen_helper)(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv))
{
TCGv_ptr vrt, vra, vrb;
TCGv rc;
REQUIRE_INSNS_FLAGS2(ctx, ISA310);
REQUIRE_VECTOR(ctx);
vrt = gen_avr_ptr(a->vrt);
vra = gen_avr_ptr(a->vra);
vrb = gen_avr_ptr(a->vrb);
rc = tcg_temp_new();
tcg_gen_andi_tl(rc, cpu_gpr[a->rc], 0x1F);
if (right) {
tcg_gen_subfi_tl(rc, 32 - size, rc);
}
gen_helper(cpu_env, vrt, vra, vrb, rc);
tcg_temp_free_ptr(vrt);
tcg_temp_free_ptr(vra);
tcg_temp_free_ptr(vrb);
tcg_temp_free(rc);
return true;
}
TRANS(VEXTDUBVLX, do_vextdx, 1, false, gen_helper_VEXTDUBVLX)
TRANS(VEXTDUHVLX, do_vextdx, 2, false, gen_helper_VEXTDUHVLX)
TRANS(VEXTDUWVLX, do_vextdx, 4, false, gen_helper_VEXTDUWVLX)
TRANS(VEXTDDVLX, do_vextdx, 8, false, gen_helper_VEXTDDVLX)
TRANS(VEXTDUBVRX, do_vextdx, 1, true, gen_helper_VEXTDUBVLX)
TRANS(VEXTDUHVRX, do_vextdx, 2, true, gen_helper_VEXTDUHVLX)
TRANS(VEXTDUWVRX, do_vextdx, 4, true, gen_helper_VEXTDUWVLX)
TRANS(VEXTDDVRX, do_vextdx, 8, true, gen_helper_VEXTDDVLX)
static bool do_vinsx(DisasContext *ctx, int vrt, int size, bool right, TCGv ra,
TCGv_i64 rb, void (*gen_helper)(TCGv_ptr, TCGv_ptr, TCGv_i64, TCGv))
{