[PATCH v2 18/18] target/riscv: Remove Zbkb dependency from P extension to align with the spec

[Molly Chen]

Signed-off-by: Molly Chen <xia...@iscas.ac.cn>
---
 target/riscv/tcg/insn_trans/trans_rvb.c.inc | 4 +++-
 target/riscv/tcg/insn_trans/trans_rvp.c.inc | 2 +-
 target/riscv/tcg/tcg-cpu.c                  | 6 ++----
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/target/riscv/tcg/insn_trans/trans_rvb.c.inc 
b/target/riscv/tcg/insn_trans/trans_rvb.c.inc
index e4dcc7c9913..af53eb4fe4b 100644
--- a/target/riscv/tcg/insn_trans/trans_rvb.c.inc
+++ b/target/riscv/tcg/insn_trans/trans_rvb.c.inc
@@ -527,7 +527,9 @@ static bool trans_brev8(DisasContext *ctx, arg_brev8 *a)
 
 static bool trans_pack(DisasContext *ctx, arg_pack *a)
 {
-    REQUIRE_ZBKB(ctx);
+    if (!has_ext(ctx, RVP) && !ctx->cfg_ptr->ext_zbkb) {
+        return false;
+    }
     return gen_arith(ctx, a, EXT_NONE, gen_pack, NULL);
 }
 
diff --git a/target/riscv/tcg/insn_trans/trans_rvp.c.inc 
b/target/riscv/tcg/insn_trans/trans_rvp.c.inc
index e33e0ec110a..8c5b52ca970 100644
--- a/target/riscv/tcg/insn_trans/trans_rvp.c.inc
+++ b/target/riscv/tcg/insn_trans/trans_rvp.c.inc
@@ -1386,4 +1386,4 @@ GEN_DWS_REG_OP(psll_dws, gen_shift, EXT_NONE, 
tcg_gen_shl_tl)
 GEN_DWS_REG_OP(psrl_dws, gen_shift, EXT_ZERO, tcg_gen_shr_tl)
 GEN_DWS_REG_OP(psra_dws, gen_shift, EXT_SIGN, tcg_gen_sar_tl)
 
-GEN_DW_PAIR_ARITH(ppaire_dh, REQUIRE_ZBKB(ctx); , EXT_NONE, gen_pack)
+GEN_DW_PAIR_ARITH(ppaire_dh, , EXT_NONE, gen_pack)
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 1665583accf..36b0196a626 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -563,10 +563,8 @@ static void riscv_cpu_validate_p(RISCVCPU *cpu, Error 
**errp)
         return;
     }
 
-    if (!(cpu->cfg.ext_zmmul && cpu->cfg.ext_zba && cpu->cfg.ext_zbb &&
-          cpu->cfg.ext_zbkb)) {
-        error_setg(errp, "P extension requires zmmul, zba, zbb and zbkb "
-                         "extensions");
+    if (!(cpu->cfg.ext_zmmul && cpu->cfg.ext_zba && cpu->cfg.ext_zbb)) {
+        error_setg(errp, "P extension requires zmmul, zba and zbb extensions");
         return;
     }
 }
-- 
2.34.1