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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 05/45] target/arm: Mark RDFFR, WRFFR, SETFFR as non-streaming
Date: Mon, 11 Jul 2022 14:57:10 +0100
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From: Richard Henderson <richard.henderson@linaro.org>
Mark these as a non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/sme-fa64.decode | 2 --
target/arm/translate-sve.c | 9 ++++++---
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/target/arm/sme-fa64.decode b/target/arm/sme-fa64.decode
index 73c71abc462..fa2b5cbf1a3 100644
--- a/target/arm/sme-fa64.decode
+++ b/target/arm/sme-fa64.decode
@@ -61,8 +61,6 @@ FAIL 0001 1110 0111 1110 0000 00-- ---- ---- # FJCVT=
ZS
=20
FAIL 0000 0100 --1- ---- 1011 -0-- ---- ---- # FTSSEL, FEXPA
FAIL 0000 0101 --10 0001 100- ---- ---- ---- # COMPACT
-FAIL 0010 0101 --01 100- 1111 000- ---0 ---- # RDFFR, RDFFRS
-FAIL 0010 0101 --10 1--- 1001 ---- ---- ---- # WRFFR, SETFFR
FAIL 0100 0101 --0- ---- 1011 ---- ---- ---- # BDEP, BEXT, BGRP
FAIL 0100 0101 000- ---- 0110 1--- ---- ---- # PMULLB, PMULLT (128b r=
esult)
FAIL 0110 0100 --1- ---- 1110 01-- ---- ---- # FMMLA, BFMMLA
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 5d1db0d3ff9..d6faec15fe9 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -1785,7 +1785,8 @@ static bool do_predset(DisasContext *s, int esz, int =
rd, int pat, bool setflag)
TRANS_FEAT(PTRUE, aa64_sve, do_predset, a->esz, a->rd, a->pat, a->s)
=20
/* Note pat =3D=3D 31 is #all, to set all elements. */
-TRANS_FEAT(SETFFR, aa64_sve, do_predset, 0, FFR_PRED_NUM, 31, false)
+TRANS_FEAT_NONSTREAMING(SETFFR, aa64_sve,
+ do_predset, 0, FFR_PRED_NUM, 31, false)
=20
/* Note pat =3D=3D 32 is #unimp, to set no elements. */
TRANS_FEAT(PFALSE, aa64_sve, do_predset, 0, a->rd, 32, false)
@@ -1799,11 +1800,13 @@ static bool trans_RDFFR_p(DisasContext *s, arg_RDFF=
R_p *a)
.rd =3D a->rd, .pg =3D a->pg, .s =3D a->s,
.rn =3D FFR_PRED_NUM, .rm =3D FFR_PRED_NUM,
};
+
+ s->is_nonstreaming =3D true;
return trans_AND_pppp(s, &alt_a);
}
=20
-TRANS_FEAT(RDFFR, aa64_sve, do_mov_p, a->rd, FFR_PRED_NUM)
-TRANS_FEAT(WRFFR, aa64_sve, do_mov_p, FFR_PRED_NUM, a->rn)
+TRANS_FEAT_NONSTREAMING(RDFFR, aa64_sve, do_mov_p, a->rd, FFR_PRED_NUM)
+TRANS_FEAT_NONSTREAMING(WRFFR, aa64_sve, do_mov_p, FFR_PRED_NUM, a->rn)
=20
static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a,
void (*gen_fn)(TCGv_i32, TCGv_ptr,
--=20
2.25.1