target/arm: Split out load/store primitives to sve_ldst_internal.h

Begin creation of sve_ldst_internal.h by moving the primitives
that access host and tlb memory.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220607203306.657998-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 127 insertions, 0 deletions

diff --git a/target/arm/sve_ldst_internal.h b/target/arm/sve_ldst_internal.h
new file mode 100644
index 0000000000..ef9117e84c
--- /dev/null
+++ b/target/arm/sve_ldst_internal.h
@@ -0,0 +1,127 @@
+/*
+ * ARM SVE Load/Store Helpers
+ *
+ * Copyright (c) 2018-2022 Linaro
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TARGET_ARM_SVE_LDST_INTERNAL_H
+#define TARGET_ARM_SVE_LDST_INTERNAL_H
+
+#include "exec/cpu_ldst.h"
+
+/*
+ * Load one element into @vd + @reg_off from @host.
+ * The controlling predicate is known to be true.
+ */
+typedef void sve_ldst1_host_fn(void *vd, intptr_t reg_off, void *host);
+
+/*
+ * Load one element into @vd + @reg_off from (@env, @vaddr, @ra).
+ * The controlling predicate is known to be true.
+ */
+typedef void sve_ldst1_tlb_fn(CPUARMState *env, void *vd, intptr_t reg_off,
+                              target_ulong vaddr, uintptr_t retaddr);
+
+/*
+ * Generate the above primitives.
+ */
+
+#define DO_LD_HOST(NAME, H, TYPEE, TYPEM, HOST)                              \
+static inline void sve_##NAME##_host(void *vd, intptr_t reg_off, void *host) \
+{ TYPEM val = HOST(host); *(TYPEE *)(vd + H(reg_off)) = val; }
+
+#define DO_ST_HOST(NAME, H, TYPEE, TYPEM, HOST)                              \
+static inline void sve_##NAME##_host(void *vd, intptr_t reg_off, void *host) \
+{ TYPEM val = *(TYPEE *)(vd + H(reg_off)); HOST(host, val); }
+
+#define DO_LD_TLB(NAME, H, TYPEE, TYPEM, TLB)                              \
+static inline void sve_##NAME##_tlb(CPUARMState *env, void *vd,            \
+                        intptr_t reg_off, target_ulong addr, uintptr_t ra) \
+{                                                                          \
+    TYPEM val = TLB(env, useronly_clean_ptr(addr), ra);                    \
+    *(TYPEE *)(vd + H(reg_off)) = val;                                     \
+}
+
+#define DO_ST_TLB(NAME, H, TYPEE, TYPEM, TLB)                              \
+static inline void sve_##NAME##_tlb(CPUARMState *env, void *vd,            \
+                        intptr_t reg_off, target_ulong addr, uintptr_t ra) \
+{                                                                          \
+    TYPEM val = *(TYPEE *)(vd + H(reg_off));                               \
+    TLB(env, useronly_clean_ptr(addr), val, ra);                           \
+}
+
+#define DO_LD_PRIM_1(NAME, H, TE, TM)                   \
+    DO_LD_HOST(NAME, H, TE, TM, ldub_p)                 \
+    DO_LD_TLB(NAME, H, TE, TM, cpu_ldub_data_ra)
+
+DO_LD_PRIM_1(ld1bb,  H1,   uint8_t,  uint8_t)
+DO_LD_PRIM_1(ld1bhu, H1_2, uint16_t, uint8_t)
+DO_LD_PRIM_1(ld1bhs, H1_2, uint16_t,  int8_t)
+DO_LD_PRIM_1(ld1bsu, H1_4, uint32_t, uint8_t)
+DO_LD_PRIM_1(ld1bss, H1_4, uint32_t,  int8_t)
+DO_LD_PRIM_1(ld1bdu, H1_8, uint64_t, uint8_t)
+DO_LD_PRIM_1(ld1bds, H1_8, uint64_t,  int8_t)
+
+#define DO_ST_PRIM_1(NAME, H, TE, TM)                   \
+    DO_ST_HOST(st1##NAME, H, TE, TM, stb_p)             \
+    DO_ST_TLB(st1##NAME, H, TE, TM, cpu_stb_data_ra)
+
+DO_ST_PRIM_1(bb,   H1,  uint8_t, uint8_t)
+DO_ST_PRIM_1(bh, H1_2, uint16_t, uint8_t)
+DO_ST_PRIM_1(bs, H1_4, uint32_t, uint8_t)
+DO_ST_PRIM_1(bd, H1_8, uint64_t, uint8_t)
+
+#define DO_LD_PRIM_2(NAME, H, TE, TM, LD) \
+    DO_LD_HOST(ld1##NAME##_be, H, TE, TM, LD##_be_p)    \
+    DO_LD_HOST(ld1##NAME##_le, H, TE, TM, LD##_le_p)    \
+    DO_LD_TLB(ld1##NAME##_be, H, TE, TM, cpu_##LD##_be_data_ra) \
+    DO_LD_TLB(ld1##NAME##_le, H, TE, TM, cpu_##LD##_le_data_ra)
+
+#define DO_ST_PRIM_2(NAME, H, TE, TM, ST) \
+    DO_ST_HOST(st1##NAME##_be, H, TE, TM, ST##_be_p)    \
+    DO_ST_HOST(st1##NAME##_le, H, TE, TM, ST##_le_p)    \
+    DO_ST_TLB(st1##NAME##_be, H, TE, TM, cpu_##ST##_be_data_ra) \
+    DO_ST_TLB(st1##NAME##_le, H, TE, TM, cpu_##ST##_le_data_ra)
+
+DO_LD_PRIM_2(hh,  H1_2, uint16_t, uint16_t, lduw)
+DO_LD_PRIM_2(hsu, H1_4, uint32_t, uint16_t, lduw)
+DO_LD_PRIM_2(hss, H1_4, uint32_t,  int16_t, lduw)
+DO_LD_PRIM_2(hdu, H1_8, uint64_t, uint16_t, lduw)
+DO_LD_PRIM_2(hds, H1_8, uint64_t,  int16_t, lduw)
+
+DO_ST_PRIM_2(hh, H1_2, uint16_t, uint16_t, stw)
+DO_ST_PRIM_2(hs, H1_4, uint32_t, uint16_t, stw)
+DO_ST_PRIM_2(hd, H1_8, uint64_t, uint16_t, stw)
+
+DO_LD_PRIM_2(ss,  H1_4, uint32_t, uint32_t, ldl)
+DO_LD_PRIM_2(sdu, H1_8, uint64_t, uint32_t, ldl)
+DO_LD_PRIM_2(sds, H1_8, uint64_t,  int32_t, ldl)
+
+DO_ST_PRIM_2(ss, H1_4, uint32_t, uint32_t, stl)
+DO_ST_PRIM_2(sd, H1_8, uint64_t, uint32_t, stl)
+
+DO_LD_PRIM_2(dd, H1_8, uint64_t, uint64_t, ldq)
+DO_ST_PRIM_2(dd, H1_8, uint64_t, uint64_t, stq)
+
+#undef DO_LD_TLB
+#undef DO_ST_TLB
+#undef DO_LD_HOST
+#undef DO_LD_PRIM_1
+#undef DO_ST_PRIM_1
+#undef DO_LD_PRIM_2
+#undef DO_ST_PRIM_2
+
+#endif /* TARGET_ARM_SVE_LDST_INTERNAL_H */