From: William Salmon <will.salmon@xxxxxxxxxxxxxxx>
Co-authored-by: Kiran Ostrolenk <kiran.ostrolenk@xxxxxxxxxxxxxxx>
Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@xxxxxxxxxxxxxxx>
Signed-off-by: William Salmon <will.salmon@xxxxxxxxxxxxxxx>
---
include/qemu/bitops.h | 32 +++++++++++++++++
target/riscv/helper.h | 5 +++
target/riscv/insn32.decode | 1 +
target/riscv/insn_trans/trans_rvzvkb.c.inc | 39 ++++++++++++++++++++
target/riscv/vcrypto_helper.c | 10 ++++++
target/riscv/vector_helper.c | 41 ---------------------
target/riscv/vector_internals.h | 42 ++++++++++++++++++++++
7 files changed, 129 insertions(+), 41 deletions(-)
diff --git a/include/qemu/bitops.h b/include/qemu/bitops.h
index 03213ce952..dfce1cb10c 100644
--- a/include/qemu/bitops.h
+++ b/include/qemu/bitops.h
@@ -618,4 +618,36 @@ static inline uint64_t half_unshuffle64(uint64_t x)
return x;
}
+static inline uint8_t reverse_bits_byte(uint8_t x)
+{
+ x = (((x & 0b10101010) >> 1) | ((x & 0b01010101) << 1));
+ x = (((x & 0b11001100) >> 2) | ((x & 0b00110011) << 2));
+ return ((x & 0b11110000) >> 4) | ((x & 0b00001111) << 4);
+}
+
+static inline uint16_t reverse_bits_byte_2(uint16_t x)
+{
+ return (uint16_t)reverse_bits_byte(x & 0xFF) | \
+ (uint16_t)reverse_bits_byte((x >> 8) & 0xFF) << 8;
+}
+
+static inline uint32_t reverse_bits_byte_4(uint32_t x)
+{
+ return (uint32_t)reverse_bits_byte(x & 0xFF) | \
+ (uint32_t)reverse_bits_byte((x >> 8) & 0xFF) << 8 | \
+ (uint32_t)reverse_bits_byte((x >> 16) & 0xFF) << 16 | \
+ (uint32_t)reverse_bits_byte((x >> 24) & 0xFF) << 24;
+}
+
+static inline uint64_t reverse_bits_byte_8(uint64_t x)
+{
+ return (uint64_t)reverse_bits_byte(x & 0xFF) | \
+ (uint64_t)reverse_bits_byte((x >> 8) & 0xFF) << 8 | \
+ (uint64_t)reverse_bits_byte((x >> 16) & 0xFF) << 16 | \
+ (uint64_t)reverse_bits_byte((x >> 24) & 0xFF) << 24 | \
+ (uint64_t)reverse_bits_byte((x >> 32) & 0xFF) << 32 | \
+ (uint64_t)reverse_bits_byte((x >> 40) & 0xFF) << 40 | \
+ (uint64_t)reverse_bits_byte((x >> 48) & 0xFF) << 48 | \
+ (uint64_t)reverse_bits_byte((x >> 56) & 0xFF) << 56;
+}
#endif
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index e5b6b3360f..c94627d8a4 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1162,3 +1162,8 @@ DEF_HELPER_6(vrol_vx_b, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vrol_vx_h, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vrol_vx_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vrol_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+
+DEF_HELPER_5(vbrev8_v_b, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vbrev8_v_h, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vbrev8_v_w, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vbrev8_v_d, void, ptr, ptr, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 725f907ad1..782632a165 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -902,3 +902,4 @@ vror_vv 010100 . ..... ..... 000 ..... 1010111 @r_vm
vror_vx 010100 . ..... ..... 100 ..... 1010111 @r_vm
vror_vi 010100 . ..... ..... 011 ..... 1010111 @r_vm
vror_vi2 010101 . ..... ..... 011 ..... 1010111 @r_vm
+vbrev8_v 010010 . ..... 01000 010 ..... 1010111 @r2_vm
diff --git a/target/riscv/insn_trans/trans_rvzvkb.c.inc b/target/riscv/insn_trans/trans_rvzvkb.c.inc
index d2a7a92d42..591980459a 100644
--- a/target/riscv/insn_trans/trans_rvzvkb.c.inc
+++ b/target/riscv/insn_trans/trans_rvzvkb.c.inc
@@ -115,3 +115,42 @@ static bool trans_vror_vi2(DisasContext *s, arg_rmrr *a)
a->rs1 += 32;
return trans_vror_vi(s, a);
}
+
+#define GEN_OPIV_TRANS(NAME, CHECK) \
+static bool trans_##NAME(DisasContext *s, arg_rmr * a) \
+{ \
+ if (CHECK(s, a)) { \
+ uint32_t data = 0; \
+ static gen_helper_gvec_3_ptr * const fns[4] = { \
+ gen_helper_##NAME##_b, \
+ gen_helper_##NAME##_h, \
+ gen_helper_##NAME##_w, \
+ gen_helper_##NAME##_d, \
+ }; \
+ TCGLabel *over = gen_new_label(); \
+ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \
+ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \
+ \
+ data = FIELD_DP32(data, VDATA, VM, a->vm); \
+ data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \
+ data = FIELD_DP32(data, VDATA, VTA, s->vta); \
+ data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); \
+ data = FIELD_DP32(data, VDATA, VMA, s->vma); \
+ tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \
+ vreg_ofs(s, a->rs2), cpu_env, \
+ s->cfg_ptr->vlen / 8, s->cfg_ptr->vlen / 8, \
+ data, fns[s->sew]); \
+ mark_vs_dirty(s); \
+ gen_set_label(over); \
+ return true; \
+ } \
+ return false; \
+}
+
+static bool vxrev8_check(DisasContext *s, arg_rmr *a)
+{
+ return s->cfg_ptr->ext_zvkb == true && vext_check_isa_ill(s) &&
+ vext_check_ss(s, a->rd, a->rs2, a->vm);
+}
+
+GEN_OPIV_TRANS(vbrev8_v, vxrev8_check)
diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c
index 7ec75c5589..303a656141 100644
--- a/target/riscv/vcrypto_helper.c
+++ b/target/riscv/vcrypto_helper.c
@@ -1,6 +1,7 @@
#include "qemu/osdep.h"
#include "qemu/host-utils.h"
#include "qemu/bitops.h"
+#include "qemu/bswap.h"
#include "cpu.h"
#include "exec/memop.h"
#include "exec/exec-all.h"
@@ -115,3 +116,12 @@ GEN_VEXT_VX(vrol_vx_b, 1)
GEN_VEXT_VX(vrol_vx_h, 2)
GEN_VEXT_VX(vrol_vx_w, 4)
GEN_VEXT_VX(vrol_vx_d, 8)
+
+RVVCALL(OPIVV1, vbrev8_v_b, OP_UU_B, H1, H1, reverse_bits_byte)
+RVVCALL(OPIVV1, vbrev8_v_h, OP_UU_H, H2, H2, reverse_bits_byte_2)
+RVVCALL(OPIVV1, vbrev8_v_w, OP_UU_W, H4, H4, reverse_bits_byte_4)
+RVVCALL(OPIVV1, vbrev8_v_d, OP_UU_D, H8, H8, reverse_bits_byte_8)
+GEN_VEXT_V(vbrev8_v_b, 1)
+GEN_VEXT_V(vbrev8_v_h, 2)
+GEN_VEXT_V(vbrev8_v_w, 4)
+GEN_VEXT_V(vbrev8_v_d, 8)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index ff7b03cbe3..07da4b5e16 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -3437,12 +3437,6 @@ RVVCALL(OPFVF3, vfwnmsac_vf_w, WOP_UUU_W, H8, H4, fwnmsac32)
GEN_VEXT_VF(vfwnmsac_vf_h, 4)
GEN_VEXT_VF(vfwnmsac_vf_w, 8)
-/* Vector Floating-Point Square-Root Instruction */
-/* (TD, T2, TX2) */
-#define OP_UU_H uint16_t, uint16_t, uint16_t
-#define OP_UU_W uint32_t, uint32_t, uint32_t
-#define OP_UU_D uint64_t, uint64_t, uint64_t
-
#define OPFVV1(NAME, TD, T2, TX2, HD, HS2, OP) \
static void do_##NAME(void *vd, void *vs2, int i, \
CPURISCVState *env) \
@@ -4134,41 +4128,6 @@ GEN_VEXT_CMP_VF(vmfge_vf_h, uint16_t, H2, vmfge16)
GEN_VEXT_CMP_VF(vmfge_vf_w, uint32_t, H4, vmfge32)
GEN_VEXT_CMP_VF(vmfge_vf_d, uint64_t, H8, vmfge64)
-/* Vector Floating-Point Classify Instruction */
-#define OPIVV1(NAME, TD, T2, TX2, HD, HS2, OP) \
-static void do_##NAME(void *vd, void *vs2, int i) \
-{ \
- TX2 s2 = *((T2 *)vs2 + HS2(i)); \
- *((TD *)vd + HD(i)) = OP(s2); \
-}
-
-#define GEN_VEXT_V(NAME, ESZ) \
-void HELPER(NAME)(void *vd, void *v0, void *vs2, \
- CPURISCVState *env, uint32_t desc) \
-{ \
- uint32_t vm = vext_vm(desc); \
- uint32_t vl = env->vl; \
- uint32_t total_elems = \
- vext_get_total_elems(env, desc, ESZ); \
- uint32_t vta = vext_vta(desc); \
- uint32_t vma = vext_vma(desc); \
- uint32_t i; \
- \
- for (i = env->vstart; i < vl; i++) { \
- if (!vm && !vext_elem_mask(v0, i)) { \
- /* set masked-off elements to 1s */ \
- vext_set_elems_1s(vd, vma, i * ESZ, \
- (i + 1) * ESZ); \
- continue; \
- } \
- do_##NAME(vd, vs2, i); \
- } \
- env->vstart = 0; \
- /* set tail elements to 1s */ \
- vext_set_elems_1s(vd, vta, vl * ESZ, \
- total_elems * ESZ); \
-}
-
target_ulong fclass_h(uint64_t frs1)
{
float16 f = frs1;
diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h
index a0fbac7bf3..f1f16453dc 100644
--- a/target/riscv/vector_internals.h
+++ b/target/riscv/vector_internals.h
@@ -123,12 +123,54 @@ void vext_set_elems_1s(void *base, uint32_t is_agnostic, uint32_t cnt,
/* expand macro args before macro */
#define RVVCALL(macro, ...) macro(__VA_ARGS__)
+/* Vector Floating-Point Square-Root Instruction */
+/* (TD, T2, TX2) */
+#define OP_UU_B uint8_t, uint8_t, uint8_t
+#define OP_UU_H uint16_t, uint16_t, uint16_t
+#define OP_UU_W uint32_t, uint32_t, uint32_t
+#define OP_UU_D uint64_t, uint64_t, uint64_t
+
/* (TD, T1, T2, TX1, TX2) */
#define OP_UUU_B uint8_t, uint8_t, uint8_t, uint8_t, uint8_t
#define OP_UUU_H uint16_t, uint16_t, uint16_t, uint16_t, uint16_t
#define OP_UUU_W uint32_t, uint32_t, uint32_t, uint32_t, uint32_t
#define OP_UUU_D uint64_t, uint64_t, uint64_t, uint64_t, uint64_t
+/* Vector Floating-Point Classify Instruction */
+#define OPIVV1(NAME, TD, T2, TX2, HD, HS2, OP) \
+static void do_##NAME(void *vd, void *vs2, int i) \
+{ \
+ TX2 s2 = *((T2 *)vs2 + HS2(i)); \
+ *((TD *)vd + HD(i)) = OP(s2); \
+}
+
+#define GEN_VEXT_V(NAME, ESZ) \
+void HELPER(NAME)(void *vd, void *v0, void *vs2, \
+ CPURISCVState *env, uint32_t desc) \
+{ \
+ uint32_t vm = vext_vm(desc); \
+ uint32_t vl = env->vl; \
+ uint32_t total_elems = \
+ vext_get_total_elems(env, desc, ESZ); \
+ uint32_t vta = vext_vta(desc); \
+ uint32_t vma = vext_vma(desc); \
+ uint32_t i; \
+ \
+ for (i = env->vstart; i < vl; i++) { \
+ if (!vm && !vext_elem_mask(v0, i)) { \
+ /* set masked-off elements to 1s */ \
+ vext_set_elems_1s(vd, vma, i * ESZ, \
+ (i + 1) * ESZ); \
+ continue; \
+ } \
+ do_##NAME(vd, vs2, i); \
+ } \
+ env->vstart = 0; \
+ /* set tail elements to 1s */ \
+ vext_set_elems_1s(vd, vta, vl * ESZ, \
+ total_elems * ESZ); \
+}
+
/* operation of two vector elements */
typedef void opivv2_fn(void *vd, void *vs1, void *vs2, int i);
--
2.39.1
