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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-46fb49c3eeasm51008135e9.14.2025.10.10.08.51.46 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 10 Oct 2025 08:51:46 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Christoph Muellner , Heinrich Schuchardt , Palmer Dabbelt , Alistair Francis , Liu Zhiwei , Anton Johansson , Richard Henderson , Valentin Haudiquet , Weiwei Li , qemu-riscv@nongnu.org, Daniel Henrique Barboza , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 12/13] target/riscv: Introduce mo_endian() helper Date: Fri, 10 Oct 2025 17:50:43 +0200 Message-ID: <20251010155045.78220-13-philmd@linaro.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251010155045.78220-1-philmd@linaro.org> References: <20251010155045.78220-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::335; envelope-from=philmd@linaro.org; helo=mail-wm1-x335.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-riscv@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Sender: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org mo_endian() returns the target endianness from DisasContext. Signed-off-by: Philippe Mathieu-Daudé --- target/riscv/translate.c | 18 +++++++++++++++--- target/riscv/insn_trans/trans_rva.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvd.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvf.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvi.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvzacas.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvzce.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvzfh.c.inc | 4 ++-- target/riscv/insn_trans/trans_rvzicfiss.c.inc | 4 ++-- target/riscv/insn_trans/trans_xthead.c.inc | 16 ++++++++-------- 10 files changed, 39 insertions(+), 27 deletions(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 2e6f39aa02d..e1f4dc5ffd0 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -126,6 +126,18 @@ static inline bool has_ext(DisasContext *ctx, uint32_t ext) return ctx->misa_ext & ext; } +static inline MemOp mo_endian(DisasContext *ctx) +{ + /* + * A couple of bits in MSTATUS set the endianness: + * - MSTATUS_UBE (User-mode), + * - MSTATUS_SBE (Supervisor-mode), + * - MSTATUS_MBE (Machine-mode) + * but we don't implement that yet. + */ + return MO_TE; +} + #ifdef TARGET_RISCV32 #define get_xl(ctx) MXL_RV32 #elif defined(CONFIG_USER_ONLY) @@ -142,7 +154,7 @@ static inline bool has_ext(DisasContext *ctx, uint32_t ext) #define get_address_xl(ctx) ((ctx)->address_xl) #endif -#define mxl_memop(ctx) ((get_xl(ctx) + 1) | MO_TE) +#define mxl_memop(ctx) ((get_xl(ctx) + 1) | mo_endian(ctx)) /* The word size for this machine mode. */ static inline int __attribute__((unused)) get_xlen(DisasContext *ctx) @@ -1135,7 +1147,7 @@ static bool gen_amo(DisasContext *ctx, arg_atomic *a, TCGv src1, src2 = get_gpr(ctx, a->rs2, EXT_NONE); MemOp size = mop & MO_SIZE; - mop |= MO_TE; + mop |= mo_endian(ctx); if (ctx->cfg_ptr->ext_zama16b && size >= MO_32) { mop |= MO_ATOM_WITHIN16; } else { @@ -1156,7 +1168,7 @@ static bool gen_cmpxchg(DisasContext *ctx, arg_atomic *a, MemOp mop) TCGv src1 = get_address(ctx, a->rs1, 0); TCGv src2 = get_gpr(ctx, a->rs2, EXT_NONE); - mop |= MO_TE; + mop |= mo_endian(ctx); decode_save_opc(ctx, RISCV_UW2_ALWAYS_STORE_AMO); tcg_gen_atomic_cmpxchg_tl(dest, src1, dest, src2, ctx->mem_idx, mop); diff --git a/target/riscv/insn_trans/trans_rva.c.inc b/target/riscv/insn_trans/trans_rva.c.inc index 8737e8d60d1..a7a3278d242 100644 --- a/target/riscv/insn_trans/trans_rva.c.inc +++ b/target/riscv/insn_trans/trans_rva.c.inc @@ -35,7 +35,7 @@ static bool gen_lr(DisasContext *ctx, arg_atomic *a, MemOp mop) TCGv src1; mop |= MO_ALIGN; - mop |= MO_TE; + mop |= mo_endian(ctx); decode_save_opc(ctx, 0); src1 = get_address(ctx, a->rs1, 0); @@ -65,7 +65,7 @@ static bool gen_sc(DisasContext *ctx, arg_atomic *a, MemOp mop) TCGLabel *l2 = gen_new_label(); mop |= MO_ALIGN; - mop |= MO_TE; + mop |= mo_endian(ctx); decode_save_opc(ctx, 0); src1 = get_address(ctx, a->rs1, 0); diff --git a/target/riscv/insn_trans/trans_rvd.c.inc b/target/riscv/insn_trans/trans_rvd.c.inc index 62b75358158..ffea0c2a1f9 100644 --- a/target/riscv/insn_trans/trans_rvd.c.inc +++ b/target/riscv/insn_trans/trans_rvd.c.inc @@ -60,7 +60,7 @@ static bool trans_fld(DisasContext *ctx, arg_fld *a) } else { memop |= MO_ATOM_IFALIGN; } - memop |= MO_TE; + memop |= mo_endian(ctx); decode_save_opc(ctx, 0); addr = get_address(ctx, a->rs1, a->imm); @@ -85,7 +85,7 @@ static bool trans_fsd(DisasContext *ctx, arg_fsd *a) } else { memop |= MO_ATOM_IFALIGN; } - memop |= MO_TE; + memop |= mo_endian(ctx); decode_save_opc(ctx, 0); addr = get_address(ctx, a->rs1, a->imm); diff --git a/target/riscv/insn_trans/trans_rvf.c.inc b/target/riscv/insn_trans/trans_rvf.c.inc index 878417eae92..89fb0f604ad 100644 --- a/target/riscv/insn_trans/trans_rvf.c.inc +++ b/target/riscv/insn_trans/trans_rvf.c.inc @@ -48,7 +48,7 @@ static bool trans_flw(DisasContext *ctx, arg_flw *a) REQUIRE_FPU; REQUIRE_EXT(ctx, RVF); - memop |= MO_TE; + memop |= mo_endian(ctx); if (ctx->cfg_ptr->ext_zama16b) { memop |= MO_ATOM_WITHIN16; } @@ -71,7 +71,7 @@ static bool trans_fsw(DisasContext *ctx, arg_fsw *a) REQUIRE_FPU; REQUIRE_EXT(ctx, RVF); - memop |= MO_TE; + memop |= mo_endian(ctx); if (ctx->cfg_ptr->ext_zama16b) { memop |= MO_ATOM_WITHIN16; } diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_trans/trans_rvi.c.inc index 8db3e78baab..a6fe912b30c 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -404,7 +404,7 @@ static bool gen_load(DisasContext *ctx, arg_lb *a, MemOp memop) { bool out; - memop |= MO_TE; + memop |= mo_endian(ctx); if (ctx->cfg_ptr->ext_zama16b) { memop |= MO_ATOM_WITHIN16; } @@ -508,7 +508,7 @@ static bool gen_store_i128(DisasContext *ctx, arg_sb *a, MemOp memop) static bool gen_store(DisasContext *ctx, arg_sb *a, MemOp memop) { - memop |= MO_TE; + memop |= mo_endian(ctx); if (ctx->cfg_ptr->ext_zama16b) { memop |= MO_ATOM_WITHIN16; } diff --git a/target/riscv/insn_trans/trans_rvzacas.c.inc b/target/riscv/insn_trans/trans_rvzacas.c.inc index 6458ac4f241..8d94b83ce94 100644 --- a/target/riscv/insn_trans/trans_rvzacas.c.inc +++ b/target/riscv/insn_trans/trans_rvzacas.c.inc @@ -76,7 +76,7 @@ static bool gen_cmpxchg64(DisasContext *ctx, arg_atomic *a, MemOp mop) TCGv src1 = get_address(ctx, a->rs1, 0); TCGv_i64 src2 = get_gpr_pair(ctx, a->rs2); - mop |= MO_TE; + mop |= mo_endian(ctx); decode_save_opc(ctx, RISCV_UW2_ALWAYS_STORE_AMO); tcg_gen_atomic_cmpxchg_i64(dest, src1, dest, src2, ctx->mem_idx, mop); @@ -121,7 +121,7 @@ static bool trans_amocas_q(DisasContext *ctx, arg_amocas_q *a) TCGv_i64 desth = get_gpr(ctx, a->rd == 0 ? 0 : a->rd + 1, EXT_NONE); MemOp memop = MO_ALIGN | MO_UO; - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_concat_i64_i128(src2, src2l, src2h); tcg_gen_concat_i64_i128(dest, destl, desth); decode_save_opc(ctx, RISCV_UW2_ALWAYS_STORE_AMO); diff --git a/target/riscv/insn_trans/trans_rvzce.c.inc b/target/riscv/insn_trans/trans_rvzce.c.inc index 172c2c19c17..0d3ba40e52a 100644 --- a/target/riscv/insn_trans/trans_rvzce.c.inc +++ b/target/riscv/insn_trans/trans_rvzce.c.inc @@ -185,7 +185,7 @@ static bool gen_pop(DisasContext *ctx, arg_cmpp *a, bool ret, bool ret_val) tcg_gen_addi_tl(addr, sp, stack_adj - reg_size); - memop |= MO_TE; + memop |= mo_endian(ctx); for (i = X_Sn + 11; i >= 0; i--) { if (reg_bitmap & (1 << i)) { TCGv dest = dest_gpr(ctx, i); @@ -239,7 +239,7 @@ static bool trans_cm_push(DisasContext *ctx, arg_cm_push *a) tcg_gen_subi_tl(addr, sp, reg_size); - memop |= MO_TE; + memop |= mo_endian(ctx); for (i = X_Sn + 11; i >= 0; i--) { if (reg_bitmap & (1 << i)) { TCGv val = get_gpr(ctx, i, EXT_NONE); diff --git a/target/riscv/insn_trans/trans_rvzfh.c.inc b/target/riscv/insn_trans/trans_rvzfh.c.inc index 5355cd46c3d..791ee51f652 100644 --- a/target/riscv/insn_trans/trans_rvzfh.c.inc +++ b/target/riscv/insn_trans/trans_rvzfh.c.inc @@ -49,7 +49,7 @@ static bool trans_flh(DisasContext *ctx, arg_flh *a) REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx); - memop |= MO_TE; + memop |= mo_endian(ctx); decode_save_opc(ctx, 0); t0 = get_gpr(ctx, a->rs1, EXT_NONE); if (a->imm) { @@ -74,7 +74,7 @@ static bool trans_fsh(DisasContext *ctx, arg_fsh *a) REQUIRE_FPU; REQUIRE_ZFHMIN_OR_ZFBFMIN(ctx); - memop |= MO_TE; + memop |= mo_endian(ctx); decode_save_opc(ctx, 0); t0 = get_gpr(ctx, a->rs1, EXT_NONE); if (a->imm) { diff --git a/target/riscv/insn_trans/trans_rvzicfiss.c.inc b/target/riscv/insn_trans/trans_rvzicfiss.c.inc index 89eed007587..0b6ad57965c 100644 --- a/target/riscv/insn_trans/trans_rvzicfiss.c.inc +++ b/target/riscv/insn_trans/trans_rvzicfiss.c.inc @@ -105,7 +105,7 @@ static bool trans_ssamoswap_w(DisasContext *ctx, arg_amoswap_w *a) decode_save_opc(ctx, RISCV_UW2_ALWAYS_STORE_AMO); src1 = get_address(ctx, a->rs1, 0); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_atomic_xchg_tl(dest, src1, src2, SS_MMU_INDEX(ctx), memop); gen_set_gpr(ctx, a->rd, dest); return true; @@ -135,7 +135,7 @@ static bool trans_ssamoswap_d(DisasContext *ctx, arg_amoswap_w *a) decode_save_opc(ctx, RISCV_UW2_ALWAYS_STORE_AMO); src1 = get_address(ctx, a->rs1, 0); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_atomic_xchg_tl(dest, src1, src2, SS_MMU_INDEX(ctx), memop); gen_set_gpr(ctx, a->rd, dest); return true; diff --git a/target/riscv/insn_trans/trans_xthead.c.inc b/target/riscv/insn_trans/trans_xthead.c.inc index 2f31842791e..f8b95c6498b 100644 --- a/target/riscv/insn_trans/trans_xthead.c.inc +++ b/target/riscv/insn_trans/trans_xthead.c.inc @@ -349,7 +349,7 @@ static bool gen_fload_idx(DisasContext *ctx, arg_th_memidx *a, MemOp memop, TCGv_i64 rd = cpu_fpr[a->rd]; TCGv addr = get_th_address_indexed(ctx, a->rs1, a->rs2, a->imm2, zext_offs); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_ld_i64(rd, addr, ctx->mem_idx, memop); if ((memop & MO_SIZE) == MO_32) { gen_nanbox_s(rd, rd); @@ -370,7 +370,7 @@ static bool gen_fstore_idx(DisasContext *ctx, arg_th_memidx *a, MemOp memop, TCGv_i64 rd = cpu_fpr[a->rd]; TCGv addr = get_th_address_indexed(ctx, a->rs1, a->rs2, a->imm2, zext_offs); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_st_i64(rd, addr, ctx->mem_idx, memop); return true; @@ -570,7 +570,7 @@ static bool gen_load_inc(DisasContext *ctx, arg_th_meminc *a, MemOp memop, TCGv rd = dest_gpr(ctx, a->rd); TCGv rs1 = get_gpr(ctx, a->rs1, EXT_NONE); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_ld_tl(rd, addr, ctx->mem_idx, memop); tcg_gen_addi_tl(rs1, rs1, imm); gen_set_gpr(ctx, a->rd, rd); @@ -591,7 +591,7 @@ static bool gen_store_inc(DisasContext *ctx, arg_th_meminc *a, MemOp memop, TCGv data = get_gpr(ctx, a->rd, EXT_NONE); TCGv rs1 = get_gpr(ctx, a->rs1, EXT_NONE); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_st_tl(data, addr, ctx->mem_idx, memop); tcg_gen_addi_tl(rs1, rs1, imm); gen_set_gpr(ctx, a->rs1, rs1); @@ -747,7 +747,7 @@ static bool gen_load_idx(DisasContext *ctx, arg_th_memidx *a, MemOp memop, TCGv rd = dest_gpr(ctx, a->rd); TCGv addr = get_th_address_indexed(ctx, a->rs1, a->rs2, a->imm2, zext_offs); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_ld_tl(rd, addr, ctx->mem_idx, memop); gen_set_gpr(ctx, a->rd, rd); @@ -765,7 +765,7 @@ static bool gen_store_idx(DisasContext *ctx, arg_th_memidx *a, MemOp memop, TCGv data = get_gpr(ctx, a->rd, EXT_NONE); TCGv addr = get_th_address_indexed(ctx, a->rs1, a->rs2, a->imm2, zext_offs); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_st_tl(data, addr, ctx->mem_idx, memop); return true; @@ -926,7 +926,7 @@ static bool gen_loadpair_tl(DisasContext *ctx, arg_th_pair *a, MemOp memop, addr1 = get_address(ctx, a->rs, imm); addr2 = get_address(ctx, a->rs, memop_size(memop) + imm); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_ld_tl(t1, addr1, ctx->mem_idx, memop); tcg_gen_qemu_ld_tl(t2, addr2, ctx->mem_idx, memop); gen_set_gpr(ctx, a->rd1, t1); @@ -965,7 +965,7 @@ static bool gen_storepair_tl(DisasContext *ctx, arg_th_pair *a, MemOp memop, addr1 = get_address(ctx, a->rs, imm); addr2 = get_address(ctx, a->rs, memop_size(memop) + imm); - memop |= MO_TE; + memop |= mo_endian(ctx); tcg_gen_qemu_st_tl(data1, addr1, ctx->mem_idx, memop); tcg_gen_qemu_st_tl(data2, addr2, ctx->mem_idx, memop); return true; -- 2.51.0