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-rw-r--r--target/arm/helper-sve.h35
-rw-r--r--target/arm/sve.decode34
-rw-r--r--target/arm/sve_helper.c153
-rw-r--r--target/arm/translate-sve.c121
4 files changed, 343 insertions, 0 deletions
diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index 2e76084992..fcc9ba5f50 100644
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -719,3 +719,38 @@ DEF_HELPER_FLAGS_5(gvec_rsqrts_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_rsqrts_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1bb_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld2bb_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld3bb_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld4bb_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1hh_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld2hh_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld3hh_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld4hh_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1ss_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld2ss_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld3ss_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld4ss_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1dd_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld2dd_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld3dd_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld4dd_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1bhu_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1bsu_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1bdu_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1bhs_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1bss_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1bds_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1hsu_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1hdu_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1hss_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1hds_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+
+DEF_HELPER_FLAGS_4(sve_ld1sdu_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
+DEF_HELPER_FLAGS_4(sve_ld1sds_r, TCG_CALL_NO_WG, void, env, ptr, tl, i32)
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index 6f436f9096..cfb12da639 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -45,6 +45,9 @@
# Unsigned 8-bit immediate, optionally shifted left by 8.
%sh8_i8u 5:9 !function=expand_imm_sh8u
+# Unsigned load of msz into esz=2, represented as a dtype.
+%msz_dtype 23:2 !function=msz_dtype
+
# Either a copy of rd (at bit 0), or a different source
# as propagated via the MOVPRFX instruction.
%reg_movprfx 0:5
@@ -71,6 +74,8 @@
&incdec2_cnt rd rn pat esz imm d u
&incdec_pred rd pg esz d u
&incdec2_pred rd rn pg esz d u
+&rprr_load rd pg rn rm dtype nreg
+&rpri_load rd pg rn imm dtype nreg
###########################################################################
# Named instruction formats. These are generally used to
@@ -170,6 +175,15 @@
@incdec2_pred ........ esz:2 .... .. ..... .. pg:4 rd:5 \
&incdec2_pred rn=%reg_movprfx
+# Loads; user must fill in NREG.
+@rprr_load_dt ....... dtype:4 rm:5 ... pg:3 rn:5 rd:5 &rprr_load
+@rpri_load_dt ....... dtype:4 . imm:s4 ... pg:3 rn:5 rd:5 &rpri_load
+
+@rprr_load_msz ....... .... rm:5 ... pg:3 rn:5 rd:5 \
+ &rprr_load dtype=%msz_dtype
+@rpri_load_msz ....... .... . imm:s4 ... pg:3 rn:5 rd:5 \
+ &rpri_load dtype=%msz_dtype
+
###########################################################################
# Instruction patterns. Grouped according to the SVE encodingindex.xhtml.
@@ -665,3 +679,23 @@ LDR_pri 10000101 10 ...... 000 ... ..... 0 .... @pd_rn_i9
# SVE load vector register
LDR_zri 10000101 10 ...... 010 ... ..... ..... @rd_rn_i9
+
+### SVE Memory Contiguous Load Group
+
+# SVE contiguous load (scalar plus scalar)
+LD_zprr 1010010 .... ..... 010 ... ..... ..... @rprr_load_dt nreg=0
+
+# SVE contiguous load (scalar plus immediate)
+LD_zpri 1010010 .... 0.... 101 ... ..... ..... @rpri_load_dt nreg=0
+
+# SVE contiguous non-temporal load (scalar plus scalar)
+# LDNT1B, LDNT1H, LDNT1W, LDNT1D
+# SVE load multiple structures (scalar plus scalar)
+# LD2B, LD2H, LD2W, LD2D; etc.
+LD_zprr 1010010 .. nreg:2 ..... 110 ... ..... ..... @rprr_load_msz
+
+# SVE contiguous non-temporal load (scalar plus immediate)
+# LDNT1B, LDNT1H, LDNT1W, LDNT1D
+# SVE load multiple structures (scalar plus immediate)
+# LD2B, LD2H, LD2W, LD2D; etc.
+LD_zpri 1010010 .. nreg:2 0.... 111 ... ..... ..... @rpri_load_msz
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 128bbf9b04..4e6ad282f9 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -2810,3 +2810,156 @@ uint32_t HELPER(sve_while)(void *vd, uint32_t count, uint32_t pred_desc)
return predtest_ones(d, oprsz, esz_mask);
}
+
+/*
+ * Load contiguous data, protected by a governing predicate.
+ */
+#define DO_LD1(NAME, FN, TYPEE, TYPEM, H) \
+static void do_##NAME(CPUARMState *env, void *vd, void *vg, \
+ target_ulong addr, intptr_t oprsz, \
+ uintptr_t ra) \
+{ \
+ intptr_t i = 0; \
+ do { \
+ uint16_t pg = *(uint16_t *)(vg + H1_2(i >> 3)); \
+ do { \
+ TYPEM m = 0; \
+ if (pg & 1) { \
+ m = FN(env, addr, ra); \
+ } \
+ *(TYPEE *)(vd + H(i)) = m; \
+ i += sizeof(TYPEE), pg >>= sizeof(TYPEE); \
+ addr += sizeof(TYPEM); \
+ } while (i & 15); \
+ } while (i < oprsz); \
+} \
+void HELPER(NAME)(CPUARMState *env, void *vg, \
+ target_ulong addr, uint32_t desc) \
+{ \
+ do_##NAME(env, &env->vfp.zregs[simd_data(desc)], vg, \
+ addr, simd_oprsz(desc), GETPC()); \
+}
+
+#define DO_LD2(NAME, FN, TYPEE, TYPEM, H) \
+void HELPER(NAME)(CPUARMState *env, void *vg, \
+ target_ulong addr, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ intptr_t ra = GETPC(); \
+ unsigned rd = simd_data(desc); \
+ void *d1 = &env->vfp.zregs[rd]; \
+ void *d2 = &env->vfp.zregs[(rd + 1) & 31]; \
+ for (i = 0; i < oprsz; ) { \
+ uint16_t pg = *(uint16_t *)(vg + H1_2(i >> 3)); \
+ do { \
+ TYPEM m1 = 0, m2 = 0; \
+ if (pg & 1) { \
+ m1 = FN(env, addr, ra); \
+ m2 = FN(env, addr + sizeof(TYPEM), ra); \
+ } \
+ *(TYPEE *)(d1 + H(i)) = m1; \
+ *(TYPEE *)(d2 + H(i)) = m2; \
+ i += sizeof(TYPEE), pg >>= sizeof(TYPEE); \
+ addr += 2 * sizeof(TYPEM); \
+ } while (i & 15); \
+ } \
+}
+
+#define DO_LD3(NAME, FN, TYPEE, TYPEM, H) \
+void HELPER(NAME)(CPUARMState *env, void *vg, \
+ target_ulong addr, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ intptr_t ra = GETPC(); \
+ unsigned rd = simd_data(desc); \
+ void *d1 = &env->vfp.zregs[rd]; \
+ void *d2 = &env->vfp.zregs[(rd + 1) & 31]; \
+ void *d3 = &env->vfp.zregs[(rd + 2) & 31]; \
+ for (i = 0; i < oprsz; ) { \
+ uint16_t pg = *(uint16_t *)(vg + H1_2(i >> 3)); \
+ do { \
+ TYPEM m1 = 0, m2 = 0, m3 = 0; \
+ if (pg & 1) { \
+ m1 = FN(env, addr, ra); \
+ m2 = FN(env, addr + sizeof(TYPEM), ra); \
+ m3 = FN(env, addr + 2 * sizeof(TYPEM), ra); \
+ } \
+ *(TYPEE *)(d1 + H(i)) = m1; \
+ *(TYPEE *)(d2 + H(i)) = m2; \
+ *(TYPEE *)(d3 + H(i)) = m3; \
+ i += sizeof(TYPEE), pg >>= sizeof(TYPEE); \
+ addr += 3 * sizeof(TYPEM); \
+ } while (i & 15); \
+ } \
+}
+
+#define DO_LD4(NAME, FN, TYPEE, TYPEM, H) \
+void HELPER(NAME)(CPUARMState *env, void *vg, \
+ target_ulong addr, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ intptr_t ra = GETPC(); \
+ unsigned rd = simd_data(desc); \
+ void *d1 = &env->vfp.zregs[rd]; \
+ void *d2 = &env->vfp.zregs[(rd + 1) & 31]; \
+ void *d3 = &env->vfp.zregs[(rd + 2) & 31]; \
+ void *d4 = &env->vfp.zregs[(rd + 3) & 31]; \
+ for (i = 0; i < oprsz; ) { \
+ uint16_t pg = *(uint16_t *)(vg + H1_2(i >> 3)); \
+ do { \
+ TYPEM m1 = 0, m2 = 0, m3 = 0, m4 = 0; \
+ if (pg & 1) { \
+ m1 = FN(env, addr, ra); \
+ m2 = FN(env, addr + sizeof(TYPEM), ra); \
+ m3 = FN(env, addr + 2 * sizeof(TYPEM), ra); \
+ m4 = FN(env, addr + 3 * sizeof(TYPEM), ra); \
+ } \
+ *(TYPEE *)(d1 + H(i)) = m1; \
+ *(TYPEE *)(d2 + H(i)) = m2; \
+ *(TYPEE *)(d3 + H(i)) = m3; \
+ *(TYPEE *)(d4 + H(i)) = m4; \
+ i += sizeof(TYPEE), pg >>= sizeof(TYPEE); \
+ addr += 4 * sizeof(TYPEM); \
+ } while (i & 15); \
+ } \
+}
+
+DO_LD1(sve_ld1bhu_r, cpu_ldub_data_ra, uint16_t, uint8_t, H1_2)
+DO_LD1(sve_ld1bhs_r, cpu_ldsb_data_ra, uint16_t, int8_t, H1_2)
+DO_LD1(sve_ld1bsu_r, cpu_ldub_data_ra, uint32_t, uint8_t, H1_4)
+DO_LD1(sve_ld1bss_r, cpu_ldsb_data_ra, uint32_t, int8_t, H1_4)
+DO_LD1(sve_ld1bdu_r, cpu_ldub_data_ra, uint64_t, uint8_t, )
+DO_LD1(sve_ld1bds_r, cpu_ldsb_data_ra, uint64_t, int8_t, )
+
+DO_LD1(sve_ld1hsu_r, cpu_lduw_data_ra, uint32_t, uint16_t, H1_4)
+DO_LD1(sve_ld1hss_r, cpu_ldsw_data_ra, uint32_t, int8_t, H1_4)
+DO_LD1(sve_ld1hdu_r, cpu_lduw_data_ra, uint64_t, uint16_t, )
+DO_LD1(sve_ld1hds_r, cpu_ldsw_data_ra, uint64_t, int16_t, )
+
+DO_LD1(sve_ld1sdu_r, cpu_ldl_data_ra, uint64_t, uint32_t, )
+DO_LD1(sve_ld1sds_r, cpu_ldl_data_ra, uint64_t, int32_t, )
+
+DO_LD1(sve_ld1bb_r, cpu_ldub_data_ra, uint8_t, uint8_t, H1)
+DO_LD2(sve_ld2bb_r, cpu_ldub_data_ra, uint8_t, uint8_t, H1)
+DO_LD3(sve_ld3bb_r, cpu_ldub_data_ra, uint8_t, uint8_t, H1)
+DO_LD4(sve_ld4bb_r, cpu_ldub_data_ra, uint8_t, uint8_t, H1)
+
+DO_LD1(sve_ld1hh_r, cpu_lduw_data_ra, uint16_t, uint16_t, H1_2)
+DO_LD2(sve_ld2hh_r, cpu_lduw_data_ra, uint16_t, uint16_t, H1_2)
+DO_LD3(sve_ld3hh_r, cpu_lduw_data_ra, uint16_t, uint16_t, H1_2)
+DO_LD4(sve_ld4hh_r, cpu_lduw_data_ra, uint16_t, uint16_t, H1_2)
+
+DO_LD1(sve_ld1ss_r, cpu_ldl_data_ra, uint32_t, uint32_t, H1_4)
+DO_LD2(sve_ld2ss_r, cpu_ldl_data_ra, uint32_t, uint32_t, H1_4)
+DO_LD3(sve_ld3ss_r, cpu_ldl_data_ra, uint32_t, uint32_t, H1_4)
+DO_LD4(sve_ld4ss_r, cpu_ldl_data_ra, uint32_t, uint32_t, H1_4)
+
+DO_LD1(sve_ld1dd_r, cpu_ldq_data_ra, uint64_t, uint64_t, )
+DO_LD2(sve_ld2dd_r, cpu_ldq_data_ra, uint64_t, uint64_t, )
+DO_LD3(sve_ld3dd_r, cpu_ldq_data_ra, uint64_t, uint64_t, )
+DO_LD4(sve_ld4dd_r, cpu_ldq_data_ra, uint64_t, uint64_t, )
+
+#undef DO_LD1
+#undef DO_LD2
+#undef DO_LD3
+#undef DO_LD4
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 226c97579c..3543daff48 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -42,6 +42,8 @@ typedef void gen_helper_gvec_flags_3(TCGv_i32, TCGv_ptr, TCGv_ptr,
typedef void gen_helper_gvec_flags_4(TCGv_i32, TCGv_ptr, TCGv_ptr,
TCGv_ptr, TCGv_ptr, TCGv_i32);
+typedef void gen_helper_gvec_mem(TCGv_env, TCGv_ptr, TCGv_i64, TCGv_i32);
+
/*
* Helpers for extracting complex instruction fields.
*/
@@ -82,6 +84,15 @@ static inline int expand_imm_sh8u(int x)
return (uint8_t)x << (x & 0x100 ? 8 : 0);
}
+/* Convert a 2-bit memory size (msz) to a 4-bit data type (dtype)
+ * with unsigned data. C.f. SVE Memory Contiguous Load Group.
+ */
+static inline int msz_dtype(int msz)
+{
+ static const uint8_t dtype[4] = { 0, 5, 10, 15 };
+ return dtype[msz];
+}
+
/*
* Include the generated decoder.
*/
@@ -3526,3 +3537,113 @@ static bool trans_LDR_pri(DisasContext *s, arg_rri *a, uint32_t insn)
}
return true;
}
+
+/*
+ *** SVE Memory - Contiguous Load Group
+ */
+
+/* The memory mode of the dtype. */
+static const TCGMemOp dtype_mop[16] = {
+ MO_UB, MO_UB, MO_UB, MO_UB,
+ MO_SL, MO_UW, MO_UW, MO_UW,
+ MO_SW, MO_SW, MO_UL, MO_UL,
+ MO_SB, MO_SB, MO_SB, MO_Q
+};
+
+#define dtype_msz(x) (dtype_mop[x] & MO_SIZE)
+
+/* The vector element size of dtype. */
+static const uint8_t dtype_esz[16] = {
+ 0, 1, 2, 3,
+ 3, 1, 2, 3,
+ 3, 2, 2, 3,
+ 3, 2, 1, 3
+};
+
+static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
+ gen_helper_gvec_mem *fn)
+{
+ unsigned vsz = vec_full_reg_size(s);
+ TCGv_ptr t_pg;
+ TCGv_i32 desc;
+
+ /* For e.g. LD4, there are not enough arguments to pass all 4
+ * registers as pointers, so encode the regno into the data field.
+ * For consistency, do this even for LD1.
+ */
+ desc = tcg_const_i32(simd_desc(vsz, vsz, zt));
+ t_pg = tcg_temp_new_ptr();
+
+ tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg));
+ fn(cpu_env, t_pg, addr, desc);
+
+ tcg_temp_free_ptr(t_pg);
+ tcg_temp_free_i32(desc);
+}
+
+static void do_ld_zpa(DisasContext *s, int zt, int pg,
+ TCGv_i64 addr, int dtype, int nreg)
+{
+ static gen_helper_gvec_mem * const fns[16][4] = {
+ { gen_helper_sve_ld1bb_r, gen_helper_sve_ld2bb_r,
+ gen_helper_sve_ld3bb_r, gen_helper_sve_ld4bb_r },
+ { gen_helper_sve_ld1bhu_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1bsu_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1bdu_r, NULL, NULL, NULL },
+
+ { gen_helper_sve_ld1sds_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1hh_r, gen_helper_sve_ld2hh_r,
+ gen_helper_sve_ld3hh_r, gen_helper_sve_ld4hh_r },
+ { gen_helper_sve_ld1hsu_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1hdu_r, NULL, NULL, NULL },
+
+ { gen_helper_sve_ld1hds_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1hss_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1ss_r, gen_helper_sve_ld2ss_r,
+ gen_helper_sve_ld3ss_r, gen_helper_sve_ld4ss_r },
+ { gen_helper_sve_ld1sdu_r, NULL, NULL, NULL },
+
+ { gen_helper_sve_ld1bds_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1bss_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1bhs_r, NULL, NULL, NULL },
+ { gen_helper_sve_ld1dd_r, gen_helper_sve_ld2dd_r,
+ gen_helper_sve_ld3dd_r, gen_helper_sve_ld4dd_r },
+ };
+ gen_helper_gvec_mem *fn = fns[dtype][nreg];
+
+ /* While there are holes in the table, they are not
+ * accessible via the instruction encoding.
+ */
+ assert(fn != NULL);
+ do_mem_zpa(s, zt, pg, addr, fn);
+}
+
+static bool trans_LD_zprr(DisasContext *s, arg_rprr_load *a, uint32_t insn)
+{
+ if (a->rm == 31) {
+ return false;
+ }
+ if (sve_access_check(s)) {
+ TCGv_i64 addr = new_tmp_a64(s);
+ tcg_gen_muli_i64(addr, cpu_reg(s, a->rm),
+ (a->nreg + 1) << dtype_msz(a->dtype));
+ tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn));
+ do_ld_zpa(s, a->rd, a->pg, addr, a->dtype, a->nreg);
+ }
+ return true;
+}
+
+static bool trans_LD_zpri(DisasContext *s, arg_rpri_load *a, uint32_t insn)
+{
+ if (sve_access_check(s)) {
+ int vsz = vec_full_reg_size(s);
+ int elements = vsz >> dtype_esz[a->dtype];
+ TCGv_i64 addr = new_tmp_a64(s);
+
+ tcg_gen_addi_i64(addr, cpu_reg_sp(s, a->rn),
+ (a->imm * elements * (a->nreg + 1))
+ << dtype_msz(a->dtype));
+ do_ld_zpa(s, a->rd, a->pg, addr, a->dtype, a->nreg);
+ }
+ return true;
+}