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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
	qemu-arm@nongnu.org, Stephen Long <steplong@quicinc.com>
Subject: [PATCH v7 71/92] target/arm: Implement SVE2 TBL, TBX
Date: Mon, 24 May 2021 18:03:37 -0700	[thread overview]
Message-ID: <20210525010358.152808-72-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210525010358.152808-1-richard.henderson@linaro.org>

From: Stephen Long <steplong@quicinc.com>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stephen Long <steplong@quicinc.com>
Message-Id: <20200428144352.9275-1-steplong@quicinc.com>
[rth: rearrange the macros a little and rebase]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper-sve.h    | 10 +++++
 target/arm/sve.decode      |  5 +++
 target/arm/sve_helper.c    | 90 ++++++++++++++++++++++++++++++--------
 target/arm/translate-sve.c | 33 ++++++++++++++
 4 files changed, 119 insertions(+), 19 deletions(-)

diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index efc9a7ccf1..cdff155ead 100644
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -661,6 +661,16 @@ DEF_HELPER_FLAGS_4(sve_tbl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(sve_tbl_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(sve_tbl_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 
+DEF_HELPER_FLAGS_5(sve2_tbl_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_5(sve2_tbl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_5(sve2_tbl_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_5(sve2_tbl_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(sve2_tbx_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_tbx_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_tbx_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_tbx_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
 DEF_HELPER_FLAGS_3(sve_sunpk_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
 DEF_HELPER_FLAGS_3(sve_sunpk_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
 DEF_HELPER_FLAGS_3(sve_sunpk_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index 051a6399ac..fdeb7b106b 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -558,6 +558,11 @@ TBL             00000101 .. 1 ..... 001100 ..... .....          @rd_rn_rm
 # SVE unpack vector elements
 UNPK            00000101 esz:2 1100 u:1 h:1 001110 rn:5 rd:5
 
+# SVE2 Table Lookup (three sources)
+
+TBL_sve2        00000101 .. 1 ..... 001010 ..... .....          @rd_rn_rm
+TBX             00000101 .. 1 ..... 001011 ..... .....          @rd_rn_rm
+
 ### SVE Permute - Predicates Group
 
 # SVE permute predicate elements
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index f9c2061260..4b05e2e427 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -3069,28 +3069,80 @@ void HELPER(sve_rev_d)(void *vd, void *vn, uint32_t desc)
     }
 }
 
-#define DO_TBL(NAME, TYPE, H) \
-void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \
-{                                                              \
-    intptr_t i, opr_sz = simd_oprsz(desc);                     \
-    uintptr_t elem = opr_sz / sizeof(TYPE);                    \
-    TYPE *d = vd, *n = vn, *m = vm;                            \
-    ARMVectorReg tmp;                                          \
-    if (unlikely(vd == vn)) {                                  \
-        n = memcpy(&tmp, vn, opr_sz);                          \
-    }                                                          \
-    for (i = 0; i < elem; i++) {                               \
-        TYPE j = m[H(i)];                                      \
-        d[H(i)] = j < elem ? n[H(j)] : 0;                      \
-    }                                                          \
+typedef void tb_impl_fn(void *, void *, void *, void *, uintptr_t, bool);
+
+static inline void do_tbl1(void *vd, void *vn, void *vm, uint32_t desc,
+                           bool is_tbx, tb_impl_fn *fn)
+{
+    ARMVectorReg scratch;
+    uintptr_t oprsz = simd_oprsz(desc);
+
+    if (unlikely(vd == vn)) {
+        vn = memcpy(&scratch, vn, oprsz);
+    }
+
+    fn(vd, vn, NULL, vm, oprsz, is_tbx);
 }
 
-DO_TBL(sve_tbl_b, uint8_t, H1)
-DO_TBL(sve_tbl_h, uint16_t, H2)
-DO_TBL(sve_tbl_s, uint32_t, H4)
-DO_TBL(sve_tbl_d, uint64_t, )
+static inline void do_tbl2(void *vd, void *vn0, void *vn1, void *vm,
+                           uint32_t desc, bool is_tbx, tb_impl_fn *fn)
+{
+    ARMVectorReg scratch;
+    uintptr_t oprsz = simd_oprsz(desc);
 
-#undef TBL
+    if (unlikely(vd == vn0)) {
+        vn0 = memcpy(&scratch, vn0, oprsz);
+        if (vd == vn1) {
+            vn1 = vn0;
+        }
+    } else if (unlikely(vd == vn1)) {
+        vn1 = memcpy(&scratch, vn1, oprsz);
+    }
+
+    fn(vd, vn0, vn1, vm, oprsz, is_tbx);
+}
+
+#define DO_TB(SUFF, TYPE, H)                                            \
+static inline void do_tb_##SUFF(void *vd, void *vt0, void *vt1,         \
+                                void *vm, uintptr_t oprsz, bool is_tbx) \
+{                                                                       \
+    TYPE *d = vd, *tbl0 = vt0, *tbl1 = vt1, *indexes = vm;              \
+    uintptr_t i, nelem = oprsz / sizeof(TYPE);                          \
+    for (i = 0; i < nelem; ++i) {                                       \
+        TYPE index = indexes[H1(i)], val = 0;                           \
+        if (index < nelem) {                                            \
+            val = tbl0[H(index)];                                       \
+        } else {                                                        \
+            index -= nelem;                                             \
+            if (tbl1 && index < nelem) {                                \
+                val = tbl1[H(index)];                                   \
+            } else if (is_tbx) {                                        \
+                continue;                                               \
+            }                                                           \
+        }                                                               \
+        d[H(i)] = val;                                                  \
+    }                                                                   \
+}                                                                       \
+void HELPER(sve_tbl_##SUFF)(void *vd, void *vn, void *vm, uint32_t desc) \
+{                                                                       \
+    do_tbl1(vd, vn, vm, desc, false, do_tb_##SUFF);                     \
+}                                                                       \
+void HELPER(sve2_tbl_##SUFF)(void *vd, void *vn0, void *vn1,            \
+                             void *vm, uint32_t desc)                   \
+{                                                                       \
+    do_tbl2(vd, vn0, vn1, vm, desc, false, do_tb_##SUFF);               \
+}                                                                       \
+void HELPER(sve2_tbx_##SUFF)(void *vd, void *vn, void *vm, uint32_t desc) \
+{                                                                       \
+    do_tbl1(vd, vn, vm, desc, true, do_tb_##SUFF);                      \
+}
+
+DO_TB(b, uint8_t, H1)
+DO_TB(h, uint16_t, H2)
+DO_TB(s, uint32_t, H4)
+DO_TB(d, uint64_t,   )
+
+#undef DO_TB
 
 #define DO_UNPK(NAME, TYPED, TYPES, HD, HS) \
 void HELPER(NAME)(void *vd, void *vn, uint32_t desc)           \
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 2136a41094..9a6f7c87c1 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -2417,6 +2417,39 @@ static bool trans_TBL(DisasContext *s, arg_rrr_esz *a)
     return true;
 }
 
+static bool trans_TBL_sve2(DisasContext *s, arg_rrr_esz *a)
+{
+    static gen_helper_gvec_4 * const fns[4] = {
+        gen_helper_sve2_tbl_b, gen_helper_sve2_tbl_h,
+        gen_helper_sve2_tbl_s, gen_helper_sve2_tbl_d
+    };
+
+    if (!dc_isar_feature(aa64_sve2, s)) {
+        return false;
+    }
+    if (sve_access_check(s)) {
+        gen_gvec_ool_zzzz(s, fns[a->esz], a->rd, a->rn,
+                          (a->rn + 1) % 32, a->rm, 0);
+    }
+    return true;
+}
+
+static bool trans_TBX(DisasContext *s, arg_rrr_esz *a)
+{
+    static gen_helper_gvec_3 * const fns[4] = {
+        gen_helper_sve2_tbx_b, gen_helper_sve2_tbx_h,
+        gen_helper_sve2_tbx_s, gen_helper_sve2_tbx_d
+    };
+
+    if (!dc_isar_feature(aa64_sve2, s)) {
+        return false;
+    }
+    if (sve_access_check(s)) {
+        gen_gvec_ool_zzz(s, fns[a->esz], a->rd, a->rn, a->rm, 0);
+    }
+    return true;
+}
+
 static bool trans_UNPK(DisasContext *s, arg_UNPK *a)
 {
     static gen_helper_gvec_2 * const fns[4][2] = {
-- 
2.25.1



  parent reply	other threads:[~2021-05-25  2:20 UTC|newest]

Thread overview: 95+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-25  1:02 [PATCH v7 00/92] target/arm: Implement SVE2 Richard Henderson
2021-05-25  1:02 ` [PATCH v7 01/92] target/arm: Add ID_AA64ZFR0 fields and isar_feature_aa64_sve2 Richard Henderson
2021-05-25  1:02 ` [PATCH v7 02/92] target/arm: Implement SVE2 Integer Multiply - Unpredicated Richard Henderson
2021-05-25  1:02 ` [PATCH v7 03/92] target/arm: Implement SVE2 integer pairwise add and accumulate long Richard Henderson
2021-05-25  1:02 ` [PATCH v7 04/92] target/arm: Implement SVE2 integer unary operations (predicated) Richard Henderson
2021-05-25  1:02 ` [PATCH v7 05/92] target/arm: Split out saturating/rounding shifts from neon Richard Henderson
2021-05-25  1:02 ` [PATCH v7 06/92] target/arm: Implement SVE2 saturating/rounding bitwise shift left (predicated) Richard Henderson
2021-05-25  1:02 ` [PATCH v7 07/92] target/arm: Implement SVE2 integer halving add/subtract (predicated) Richard Henderson
2021-05-25  1:02 ` [PATCH v7 08/92] target/arm: Implement SVE2 integer pairwise arithmetic Richard Henderson
2021-05-25  1:02 ` [PATCH v7 09/92] target/arm: Implement SVE2 saturating add/subtract (predicated) Richard Henderson
2021-05-25  1:02 ` [PATCH v7 10/92] target/arm: Implement SVE2 integer add/subtract long Richard Henderson
2021-05-25  1:02 ` [PATCH v7 11/92] target/arm: Implement SVE2 integer add/subtract interleaved long Richard Henderson
2021-05-25  1:02 ` [PATCH v7 12/92] target/arm: Implement SVE2 integer add/subtract wide Richard Henderson
2021-05-25  1:02 ` [PATCH v7 13/92] target/arm: Implement SVE2 integer multiply long Richard Henderson
2021-05-25  1:02 ` [PATCH v7 14/92] target/arm: Implement SVE2 PMULLB, PMULLT Richard Henderson
2021-05-25  1:02 ` [PATCH v7 15/92] target/arm: Implement SVE2 bitwise shift left long Richard Henderson
2021-05-25  1:02 ` [PATCH v7 16/92] target/arm: Implement SVE2 bitwise exclusive-or interleaved Richard Henderson
2021-05-25  1:02 ` [PATCH v7 17/92] target/arm: Implement SVE2 bitwise permute Richard Henderson
2021-05-25  1:02 ` [PATCH v7 18/92] target/arm: Implement SVE2 complex integer add Richard Henderson
2021-05-25  1:02 ` [PATCH v7 19/92] target/arm: Implement SVE2 integer absolute difference and accumulate long Richard Henderson
2021-05-25  1:02 ` [PATCH v7 20/92] target/arm: Implement SVE2 integer add/subtract long with carry Richard Henderson
2021-05-25  1:02 ` [PATCH v7 21/92] target/arm: Implement SVE2 bitwise shift right and accumulate Richard Henderson
2021-05-25  1:02 ` [PATCH v7 22/92] target/arm: Implement SVE2 bitwise shift and insert Richard Henderson
2021-05-25  1:02 ` [PATCH v7 23/92] target/arm: Implement SVE2 integer absolute difference and accumulate Richard Henderson
2021-05-25  1:02 ` [PATCH v7 24/92] target/arm: Implement SVE2 saturating extract narrow Richard Henderson
2021-05-25  1:02 ` [PATCH v7 25/92] target/arm: Implement SVE2 floating-point pairwise Richard Henderson
2021-05-25  1:02 ` [PATCH v7 26/92] target/arm: Implement SVE2 SHRN, RSHRN Richard Henderson
2021-05-25  1:02 ` [PATCH v7 27/92] target/arm: Implement SVE2 SQSHRUN, SQRSHRUN Richard Henderson
2021-05-25  1:02 ` [PATCH v7 28/92] target/arm: Implement SVE2 UQSHRN, UQRSHRN Richard Henderson
2021-05-25  1:02 ` [PATCH v7 29/92] target/arm: Implement SVE2 SQSHRN, SQRSHRN Richard Henderson
2021-05-25  1:02 ` [PATCH v7 30/92] target/arm: Implement SVE2 WHILEGT, WHILEGE, WHILEHI, WHILEHS Richard Henderson
2021-05-25  1:02 ` [PATCH v7 31/92] target/arm: Implement SVE2 WHILERW, WHILEWR Richard Henderson
2021-05-25  1:02 ` [PATCH v7 32/92] target/arm: Implement SVE2 bitwise ternary operations Richard Henderson
2021-05-25  1:02 ` [PATCH v7 33/92] target/arm: Implement SVE2 MATCH, NMATCH Richard Henderson
2021-05-25  1:03 ` [PATCH v7 34/92] target/arm: Implement SVE2 saturating multiply-add long Richard Henderson
2021-05-25  1:03 ` [PATCH v7 35/92] target/arm: Implement SVE2 saturating multiply-add high Richard Henderson
2021-05-25  1:03 ` [PATCH v7 36/92] target/arm: Implement SVE2 integer multiply-add long Richard Henderson
2021-05-25  1:03 ` [PATCH v7 37/92] target/arm: Implement SVE2 complex integer multiply-add Richard Henderson
2021-05-25  1:03 ` [PATCH v7 38/92] target/arm: Implement SVE2 ADDHNB, ADDHNT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 39/92] target/arm: Implement SVE2 RADDHNB, RADDHNT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 40/92] target/arm: Implement SVE2 SUBHNB, SUBHNT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 41/92] target/arm: Implement SVE2 RSUBHNB, RSUBHNT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 42/92] target/arm: Implement SVE2 HISTCNT, HISTSEG Richard Henderson
2021-05-25  1:03 ` [PATCH v7 43/92] target/arm: Implement SVE2 XAR Richard Henderson
2021-05-25  1:03 ` [PATCH v7 44/92] target/arm: Implement SVE2 scatter store insns Richard Henderson
2021-05-25  1:03 ` [PATCH v7 45/92] target/arm: Implement SVE2 gather load insns Richard Henderson
2021-05-25  1:03 ` [PATCH v7 46/92] target/arm: Implement SVE2 FMMLA Richard Henderson
2021-05-25  1:03 ` [PATCH v7 47/92] target/arm: Implement SVE2 SPLICE, EXT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 48/92] target/arm: Use correct output type for gvec_sdot_*_b Richard Henderson
2021-05-25  1:03 ` [PATCH v7 49/92] target/arm: Pass separate addend to {U, S}DOT helpers Richard Henderson
2021-05-25  1:03 ` [PATCH v7 50/92] target/arm: Pass separate addend to FCMLA helpers Richard Henderson
2021-05-25  1:03 ` [PATCH v7 51/92] target/arm: Split out formats for 2 vectors + 1 index Richard Henderson
2021-05-25  1:03 ` [PATCH v7 52/92] target/arm: Split out formats for 3 " Richard Henderson
2021-05-25  1:03 ` [PATCH v7 53/92] target/arm: Implement SVE2 integer multiply (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 54/92] target/arm: Implement SVE2 integer multiply-add (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 55/92] target/arm: Implement SVE2 saturating multiply-add high (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 56/92] target/arm: Implement SVE2 saturating multiply-add (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 57/92] target/arm: Implement SVE2 saturating multiply (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 58/92] target/arm: Implement SVE2 signed saturating doubling multiply high Richard Henderson
2021-05-25  1:03 ` [PATCH v7 59/92] target/arm: Implement SVE2 saturating multiply high (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 60/92] target/arm: Implement SVE2 multiply-add long (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 61/92] target/arm: Implement SVE2 integer multiply " Richard Henderson
2021-05-25  1:03 ` [PATCH v7 62/92] target/arm: Implement SVE2 complex integer multiply-add (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 63/92] target/arm: Implement SVE2 complex integer dot product Richard Henderson
2021-05-25  1:03 ` [PATCH v7 64/92] target/arm: Macroize helper_gvec_{s,u}dot_{b,h} Richard Henderson
2021-05-25  1:03 ` [PATCH v7 65/92] target/arm: Macroize helper_gvec_{s,u}dot_idx_{b,h} Richard Henderson
2021-05-25  1:03 ` [PATCH v7 66/92] target/arm: Implement SVE mixed sign dot product (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 67/92] target/arm: Implement SVE mixed sign dot product Richard Henderson
2021-05-25  1:03 ` [PATCH v7 68/92] target/arm: Implement SVE2 crypto unary operations Richard Henderson
2021-05-25  1:03 ` [PATCH v7 69/92] target/arm: Implement SVE2 crypto destructive binary operations Richard Henderson
2021-05-25  1:03 ` [PATCH v7 70/92] target/arm: Implement SVE2 crypto constructive " Richard Henderson
2021-05-25  1:03 ` Richard Henderson [this message]
2021-05-25  1:03 ` [PATCH v7 72/92] target/arm: Implement SVE2 FCVTNT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 73/92] target/arm: Implement SVE2 FCVTLT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 74/92] target/arm: Implement SVE2 FCVTXNT, FCVTX Richard Henderson
2021-05-25  1:03 ` [PATCH v7 75/92] target/arm: Implement SVE2 FLOGB Richard Henderson
2021-05-25  1:03 ` [PATCH v7 76/92] target/arm: Share table of sve load functions Richard Henderson
2021-05-25  1:03 ` [PATCH v7 77/92] target/arm: Tidy do_ldrq Richard Henderson
2021-05-25  1:03 ` [PATCH v7 78/92] target/arm: Implement SVE2 LD1RO Richard Henderson
2021-05-25  1:03 ` [PATCH v7 79/92] target/arm: Implement 128-bit ZIP, UZP, TRN Richard Henderson
2021-05-25  1:03 ` [PATCH v7 80/92] target/arm: Implement SVE2 bitwise shift immediate Richard Henderson
2021-05-25  1:03 ` [PATCH v7 81/92] target/arm: Move endian adjustment macros to vec_internal.h Richard Henderson
2021-05-25  1:03 ` [PATCH v7 82/92] target/arm: Implement SVE2 fp multiply-add long Richard Henderson
2021-05-25  1:03 ` [PATCH v7 83/92] target/arm: Implement aarch64 SUDOT, USDOT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 84/92] target/arm: Split out do_neon_ddda_fpst Richard Henderson
2021-05-25  1:03 ` [PATCH v7 85/92] target/arm: Remove unused fpst from VDOT_scalar Richard Henderson
2021-05-25  1:03 ` [PATCH v7 86/92] target/arm: Fix decode for VDOT (indexed) Richard Henderson
2021-05-25  1:03 ` [PATCH v7 87/92] target/arm: Split out do_neon_ddda Richard Henderson
2021-05-25  1:03 ` [PATCH v7 88/92] target/arm: Split decode of VSDOT and VUDOT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 89/92] target/arm: Implement aarch32 VSUDOT, VUSDOT Richard Henderson
2021-05-25  1:03 ` [PATCH v7 90/92] target/arm: Implement integer matrix multiply accumulate Richard Henderson
2021-05-25  1:03 ` [PATCH v7 91/92] linux-user/aarch64: Enable hwcap bits for sve2 and related extensions Richard Henderson
2021-05-25  1:03 ` [PATCH v7 92/92] target/arm: Enable SVE2 " Richard Henderson
2021-05-25  2:37 ` [PATCH v7 00/92] target/arm: Implement SVE2 no-reply
2021-05-25 12:33 ` Peter Maydell

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