From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>
Subject: [PATCH 39/55] target/arm: Implement MVE VQDMULH and VQRDMULH (scalar)
Date: Mon, 7 Jun 2021 17:58:05 +0100 [thread overview]
Message-ID: <20210607165821.9892-40-peter.maydell@linaro.org> (raw)
In-Reply-To: <20210607165821.9892-1-peter.maydell@linaro.org>
Implement the MVE VQDMULH and VQRDMULH scalar insns, which multiply
elements by the scalar, double, possibly round, take the high half
and saturate.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper-mve.h | 8 ++++++++
target/arm/mve.decode | 3 +++
target/arm/mve_helper.c | 25 +++++++++++++++++++++++++
target/arm/translate-mve.c | 2 ++
4 files changed, 38 insertions(+)
diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h
index a1acc44e40e..9bab04305a7 100644
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -191,6 +191,14 @@ DEF_HELPER_FLAGS_4(mve_vqsubu_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubu_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vqsubu_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vqdmulh_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vqdmulh_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vqdmulh_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(mve_vqrdmulh_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vqrdmulh_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vqrdmulh_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+
DEF_HELPER_FLAGS_4(mve_vbrsrb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vbrsrh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(mve_vbrsrw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
diff --git a/target/arm/mve.decode b/target/arm/mve.decode
index c85227c675a..47ce6ebb83b 100644
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -174,6 +174,9 @@ VQSUB_S_scalar 1110 1110 0 . .. ... 0 ... 1 1111 . 110 .... @2scalar
VQSUB_U_scalar 1111 1110 0 . .. ... 0 ... 1 1111 . 110 .... @2scalar
VBRSR 1111 1110 0 . .. ... 1 ... 1 1110 . 110 .... @2scalar
+VQDMULH_scalar 1110 1110 0 . .. ... 1 ... 0 1110 . 110 .... @2scalar
+VQRDMULH_scalar 1111 1110 0 . .. ... 1 ... 0 1110 . 110 .... @2scalar
+
# Predicate operations
%mask_22_13 22:1 13:3
VPST 1111 1110 0 . 11 000 1 ... 0 1111 0100 1101 mask=%mask_22_13
diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c
index 41c4f2033f6..6e2da6ac8bc 100644
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -505,6 +505,24 @@ static inline int32_t do_sat_bhw(int64_t val, int64_t min, int64_t max, bool *s)
#define DO_UQSUB_H(n, m, s) do_sat_bhw((int64_t)n - m, 0, UINT16_MAX, s)
#define DO_UQSUB_W(n, m, s) do_sat_bhw((int64_t)n - m, 0, UINT32_MAX, s)
+/*
+ * For QDMULH and QRDMULH we simplify "double and shift by esize" into
+ * "shift by esize-1", adjusting the QRDMULH rounding constant to match.
+ */
+#define DO_QDMULH_B(n, m, s) do_sat_bhw(((int64_t)n * m) >> 7, \
+ INT8_MIN, INT8_MAX, s)
+#define DO_QDMULH_H(n, m, s) do_sat_bhw(((int64_t)n * m) >> 15, \
+ INT16_MIN, INT16_MAX, s)
+#define DO_QDMULH_W(n, m, s) do_sat_bhw(((int64_t)n * m) >> 31, \
+ INT32_MIN, INT32_MAX, s)
+
+#define DO_QRDMULH_B(n, m, s) do_sat_bhw(((int64_t)n * m + (1 << 6)) >> 7, \
+ INT8_MIN, INT8_MAX, s)
+#define DO_QRDMULH_H(n, m, s) do_sat_bhw(((int64_t)n * m + (1 << 14)) >> 15, \
+ INT16_MIN, INT16_MAX, s)
+#define DO_QRDMULH_W(n, m, s) do_sat_bhw(((int64_t)n * m + (1 << 30)) >> 31, \
+ INT32_MIN, INT32_MAX, s)
+
#define DO_2OP_SCALAR(OP, ESIZE, TYPE, H, FN) \
void HELPER(glue(mve_, OP))(CPUARMState *env, void *vd, void *vn, \
uint32_t rm) \
@@ -575,6 +593,13 @@ DO_2OP_SAT_SCALAR(vqsubs_scalarb, 1, int8_t, H1, DO_SQSUB_B)
DO_2OP_SAT_SCALAR(vqsubs_scalarh, 2, int16_t, H2, DO_SQSUB_H)
DO_2OP_SAT_SCALAR(vqsubs_scalarw, 4, int32_t, H4, DO_SQSUB_W)
+DO_2OP_SAT_SCALAR(vqdmulh_scalarb, 1, int8_t, H1, DO_QDMULH_B)
+DO_2OP_SAT_SCALAR(vqdmulh_scalarh, 2, int16_t, H2, DO_QDMULH_H)
+DO_2OP_SAT_SCALAR(vqdmulh_scalarw, 4, int32_t, H4, DO_QDMULH_W)
+DO_2OP_SAT_SCALAR(vqrdmulh_scalarb, 1, int8_t, H1, DO_QRDMULH_B)
+DO_2OP_SAT_SCALAR(vqrdmulh_scalarh, 2, int16_t, H2, DO_QRDMULH_H)
+DO_2OP_SAT_SCALAR(vqrdmulh_scalarw, 4, int32_t, H4, DO_QRDMULH_W)
+
static inline uint32_t do_vbrsrb(uint32_t n, uint32_t m)
{
m &= 0xff;
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index 254ff2a01b2..4d08067c1e2 100644
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -473,6 +473,8 @@ DO_2OP_SCALAR(VQADD_S_scalar, vqadds_scalar)
DO_2OP_SCALAR(VQADD_U_scalar, vqaddu_scalar)
DO_2OP_SCALAR(VQSUB_S_scalar, vqsubs_scalar)
DO_2OP_SCALAR(VQSUB_U_scalar, vqsubu_scalar)
+DO_2OP_SCALAR(VQDMULH_scalar, vqdmulh_scalar)
+DO_2OP_SCALAR(VQRDMULH_scalar, vqrdmulh_scalar)
DO_2OP_SCALAR(VBRSR, vbrsr)
static bool do_long_dual_acc(DisasContext *s, arg_vmlaldav *a,
--
2.20.1
next prev parent reply other threads:[~2021-06-07 17:28 UTC|newest]
Thread overview: 130+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-07 16:57 [PATCH 00/55] target/arm: First slice of MVE implementation Peter Maydell
2021-06-07 16:57 ` [PATCH 01/55] tcg: Introduce tcg_remove_ops_after Peter Maydell
2021-06-07 16:57 ` [PATCH 02/55] target/arm: Enable FPSCR.QC bit for MVE Peter Maydell
2021-06-07 19:02 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 03/55] target/arm: Handle VPR semantics in existing code Peter Maydell
2021-06-07 21:19 ` Richard Henderson
2021-06-10 9:28 ` Peter Maydell
2021-06-07 16:57 ` [PATCH 04/55] target/arm: Add handling for PSR.ECI/ICI Peter Maydell
2021-06-07 23:33 ` Richard Henderson
2021-06-10 10:17 ` Peter Maydell
2021-06-10 13:39 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 05/55] target/arm: Let vfp_access_check() handle late NOCP checks Peter Maydell
2021-06-07 23:50 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 06/55] target/arm: Implement MVE LCTP Peter Maydell
2021-06-08 0:05 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 07/55] target/arm: Implement MVE WLSTP insn Peter Maydell
2021-06-08 1:42 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 08/55] target/arm: Implement MVE DLSTP Peter Maydell
2021-06-08 2:56 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 09/55] target/arm: Implement MVE LETP insn Peter Maydell
2021-06-08 3:40 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 10/55] target/arm: Add framework for MVE decode Peter Maydell
2021-06-08 3:59 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 11/55] target/arm: Implement MVE VLDR/VSTR (non-widening forms) Peter Maydell
2021-06-08 21:33 ` Richard Henderson
2021-06-08 21:43 ` Richard Henderson
2021-06-09 10:01 ` Peter Maydell
2021-06-09 17:09 ` Richard Henderson
2021-06-10 14:01 ` Peter Maydell
2021-06-07 16:57 ` [PATCH 12/55] target/arm: Implement widening/narrowing MVE VLDR/VSTR insns Peter Maydell
2021-06-08 21:46 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 13/55] target/arm: Implement MVE VCLZ Peter Maydell
2021-06-08 22:10 ` Richard Henderson
2021-06-10 12:40 ` Peter Maydell
2021-06-10 14:03 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 14/55] target/arm: Implement MVE VCLS Peter Maydell
2021-06-08 22:12 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 15/55] bitops.h: Provide hswap32(), hswap64(), wswap64() swapping operations Peter Maydell
2021-06-08 6:53 ` Philippe Mathieu-Daudé
2021-06-08 22:14 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 16/55] target/arm: Implement MVE VREV16, VREV32, VREV64 Peter Maydell
2021-06-08 22:23 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 17/55] target/arm: Implement MVE VMVN (register) Peter Maydell
2021-06-08 22:27 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 18/55] target/arm: Implement MVE VABS Peter Maydell
2021-06-08 22:34 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 19/55] target/arm: Implement MVE VNEG Peter Maydell
2021-06-08 22:40 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 20/55] target/arm: Implement MVE VDUP Peter Maydell
2021-06-08 23:17 ` Richard Henderson
2021-06-09 10:06 ` Peter Maydell
2021-06-09 17:16 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 21/55] target/arm: Implement MVE VAND, VBIC, VORR, VORN, VEOR Peter Maydell
2021-06-08 23:23 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 22/55] target/arm: Implement MVE VADD, VSUB, VMUL Peter Maydell
2021-06-08 23:25 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 23/55] target/arm: Implement MVE VMULH Peter Maydell
2021-06-08 23:29 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 24/55] target/arm: Implement MVE VRMULH Peter Maydell
2021-06-08 23:33 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 25/55] target/arm: Implement MVE VMAX, VMIN Peter Maydell
2021-06-08 23:35 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 26/55] target/arm: Implement MVE VABD Peter Maydell
2021-06-08 23:39 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 27/55] target/arm: Implement MVE VHADD, VHSUB Peter Maydell
2021-06-08 23:43 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 28/55] target/arm: Implement MVE VMULL Peter Maydell
2021-06-08 23:52 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 29/55] target/arm: Implement MVE VMLALDAV Peter Maydell
2021-06-09 0:46 ` Richard Henderson
2021-06-09 0:46 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 30/55] target/arm: Implement MVE VMLSLDAV Peter Maydell
2021-06-09 0:47 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 31/55] include/qemu/int128.h: Add function to create Int128 from int64_t Peter Maydell
2021-06-08 6:45 ` Philippe Mathieu-Daudé
2021-06-09 0:51 ` Richard Henderson
2021-06-07 16:57 ` [PATCH 32/55] target/arm: Implement MVE VRMLALDAVH, VRMLSLDAVH Peter Maydell
2021-06-09 1:05 ` Richard Henderson
2021-06-14 10:19 ` Peter Maydell
2021-06-07 16:57 ` [PATCH 33/55] target/arm: Implement MVE VADD (scalar) Peter Maydell
2021-06-09 17:58 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 34/55] target/arm: Implement MVE VSUB, VMUL (scalar) Peter Maydell
2021-06-09 18:00 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 35/55] target/arm: Implement MVE VHADD, VHSUB (scalar) Peter Maydell
2021-06-09 18:02 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 36/55] target/arm: Implement MVE VBRSR Peter Maydell
2021-06-09 18:08 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 37/55] target/arm: Implement MVE VPST Peter Maydell
2021-06-09 18:23 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 38/55] target/arm: Implement MVE VQADD and VQSUB Peter Maydell
2021-06-09 18:46 ` Richard Henderson
2021-06-07 16:58 ` Peter Maydell [this message]
2021-06-09 18:58 ` [PATCH 39/55] target/arm: Implement MVE VQDMULH and VQRDMULH (scalar) Richard Henderson
2021-06-07 16:58 ` [PATCH 40/55] target/arm: Implement MVE VQDMULL scalar Peter Maydell
2021-06-09 19:11 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 41/55] target/arm: Implement MVE VQDMULH, VQRDMULH (vector) Peter Maydell
2021-06-09 19:13 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 42/55] target/arm: Implement MVE VQADD, VQSUB (vector) Peter Maydell
2021-06-09 19:15 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 43/55] target/arm: Implement MVE VQSHL (vector) Peter Maydell
2021-06-09 19:26 ` Richard Henderson
2021-06-14 11:04 ` Peter Maydell
2021-06-07 16:58 ` [PATCH 44/55] target/arm: Implement MVE VQRSHL Peter Maydell
2021-06-09 19:29 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 45/55] target/arm: Implement MVE VSHL insn Peter Maydell
2021-06-09 19:40 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 46/55] target/arm: Implement MVE VRSHL Peter Maydell
2021-06-09 19:43 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 47/55] target/arm: Implement MVE VQDMLADH and VQRDMLADH Peter Maydell
2021-06-09 20:05 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 48/55] target/arm: Implement MVE VQDMLSDH and VQRDMLSDH Peter Maydell
2021-06-09 20:08 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 49/55] target/arm: Implement MVE VQDMULL (vector) Peter Maydell
2021-06-09 20:20 ` Richard Henderson
2021-06-10 19:08 ` Peter Maydell
2021-06-10 19:34 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 50/55] target/arm: Implement MVE VRHADD Peter Maydell
2021-06-09 20:24 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 51/55] target/arm: Implement MVE VADC, VSBC Peter Maydell
2021-06-09 21:06 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 52/55] target/arm: Implement MVE VCADD Peter Maydell
2021-06-09 21:16 ` Richard Henderson
2021-06-10 19:16 ` Peter Maydell
2021-06-07 16:58 ` [PATCH 53/55] target/arm: Implement MVE VHCADD Peter Maydell
2021-06-10 3:50 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 54/55] target/arm: Implement MVE VADDV Peter Maydell
2021-06-10 14:06 ` Richard Henderson
2021-06-07 16:58 ` [PATCH 55/55] target/arm: Make VMOV scalar <-> gpreg beatwise for MVE Peter Maydell
2021-06-10 14:14 ` Richard Henderson
2021-06-09 14:33 ` [PATCH 00/55] target/arm: First slice of MVE implementation no-reply
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