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[71.212.39.66]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-21f054eb89esm22380325ad.79.2025.02.04.20.03.48 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Feb 2025 20:03:48 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 06/11] tcg/ppc: Drop addrhi from prepare_host_addr Date: Tue, 4 Feb 2025 20:03:36 -0800 Message-ID: <20250205040341.2056361-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250205040341.2056361-1-richard.henderson@linaro.org> References: <20250205040341.2056361-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::633; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x633.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, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@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-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The guest address will now always fit in one register. Signed-off-by: Richard Henderson --- tcg/ppc/tcg-target.c.inc | 75 ++++++++++++---------------------------- 1 file changed, 23 insertions(+), 52 deletions(-) diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 801cb6f3cb..74b93f4b57 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -2438,8 +2438,7 @@ bool tcg_target_has_memory_bswap(MemOp memop) * is required and fill in @h with the host address for the fast path. */ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, - TCGReg addrlo, TCGReg addrhi, - MemOpIdx oi, bool is_ld) + TCGReg addr, MemOpIdx oi, bool is_ld) { TCGType addr_type = s->addr_type; TCGLabelQemuLdst *ldst = NULL; @@ -2474,8 +2473,7 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, ldst = new_ldst_label(s); ldst->is_ld = is_ld; ldst->oi = oi; - ldst->addrlo_reg = addrlo; - ldst->addrhi_reg = addrhi; + ldst->addrlo_reg = addr; /* Load tlb_mask[mmu_idx] and tlb_table[mmu_idx]. */ tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_AREG0, mask_off); @@ -2483,10 +2481,10 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, /* Extract the page index, shifted into place for tlb index. */ if (TCG_TARGET_REG_BITS == 32) { - tcg_out_shri32(s, TCG_REG_R0, addrlo, + tcg_out_shri32(s, TCG_REG_R0, addr, s->page_bits - CPU_TLB_ENTRY_BITS); } else { - tcg_out_shri64(s, TCG_REG_R0, addrlo, + tcg_out_shri64(s, TCG_REG_R0, addr, s->page_bits - CPU_TLB_ENTRY_BITS); } tcg_out32(s, AND | SAB(TCG_REG_TMP1, TCG_REG_TMP1, TCG_REG_R0)); @@ -2534,10 +2532,10 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, if (a_bits < s_bits) { a_bits = s_bits; } - tcg_out_rlw(s, RLWINM, TCG_REG_R0, addrlo, 0, + tcg_out_rlw(s, RLWINM, TCG_REG_R0, addr, 0, (32 - a_bits) & 31, 31 - s->page_bits); } else { - TCGReg t = addrlo; + TCGReg t = addr; /* * If the access is unaligned, we need to make sure we fail if we @@ -2566,30 +2564,8 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, } } - if (TCG_TARGET_REG_BITS == 32 && addr_type != TCG_TYPE_I32) { - /* Low part comparison into cr7. */ - tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP2, - 0, 7, TCG_TYPE_I32); - - /* Load the high part TLB comparator into TMP2. */ - tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP2, TCG_REG_TMP1, - cmp_off + 4 * !HOST_BIG_ENDIAN); - - /* Load addend, deferred for this case. */ - tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, - offsetof(CPUTLBEntry, addend)); - - /* High part comparison into cr6. */ - tcg_out_cmp(s, TCG_COND_EQ, addrhi, TCG_REG_TMP2, - 0, 6, TCG_TYPE_I32); - - /* Combine comparisons into cr0. */ - tcg_out32(s, CRAND | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); - } else { - /* Full comparison into cr0. */ - tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP2, - 0, 0, addr_type); - } + /* Full comparison into cr0. */ + tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP2, 0, 0, addr_type); /* Load a pointer into the current opcode w/conditional branch-link. */ ldst->label_ptr[0] = s->code_ptr; @@ -2601,12 +2577,11 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, ldst = new_ldst_label(s); ldst->is_ld = is_ld; ldst->oi = oi; - ldst->addrlo_reg = addrlo; - ldst->addrhi_reg = addrhi; + ldst->addrlo_reg = addr; /* We are expecting a_bits to max out at 7, much lower than ANDI. */ tcg_debug_assert(a_bits < 16); - tcg_out32(s, ANDI | SAI(addrlo, TCG_REG_R0, (1 << a_bits) - 1)); + tcg_out32(s, ANDI | SAI(addr, TCG_REG_R0, (1 << a_bits) - 1)); ldst->label_ptr[0] = s->code_ptr; tcg_out32(s, BC | BI(0, CR_EQ) | BO_COND_FALSE | LK); @@ -2617,24 +2592,23 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, if (TCG_TARGET_REG_BITS == 64 && addr_type == TCG_TYPE_I32) { /* Zero-extend the guest address for use in the host address. */ - tcg_out_ext32u(s, TCG_REG_TMP2, addrlo); + tcg_out_ext32u(s, TCG_REG_TMP2, addr); h->index = TCG_REG_TMP2; } else { - h->index = addrlo; + h->index = addr; } return ldst; } static void tcg_out_qemu_ld(TCGContext *s, TCGReg datalo, TCGReg datahi, - TCGReg addrlo, TCGReg addrhi, - MemOpIdx oi, TCGType data_type) + TCGReg addr, MemOpIdx oi, TCGType data_type) { MemOp opc = get_memop(oi); TCGLabelQemuLdst *ldst; HostAddress h; - ldst = prepare_host_addr(s, &h, addrlo, addrhi, oi, true); + ldst = prepare_host_addr(s, &h, addr, oi, true); if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) { if (opc & MO_BSWAP) { @@ -2678,14 +2652,13 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg datalo, TCGReg datahi, } static void tcg_out_qemu_st(TCGContext *s, TCGReg datalo, TCGReg datahi, - TCGReg addrlo, TCGReg addrhi, - MemOpIdx oi, TCGType data_type) + TCGReg addr, MemOpIdx oi, TCGType data_type) { MemOp opc = get_memop(oi); TCGLabelQemuLdst *ldst; HostAddress h; - ldst = prepare_host_addr(s, &h, addrlo, addrhi, oi, false); + ldst = prepare_host_addr(s, &h, addr, oi, false); if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) { if (opc & MO_BSWAP) { @@ -2729,7 +2702,7 @@ static void tcg_out_qemu_ldst_i128(TCGContext *s, TCGReg datalo, TCGReg datahi, uint32_t insn; TCGReg index; - ldst = prepare_host_addr(s, &h, addr_reg, -1, oi, is_ld); + ldst = prepare_host_addr(s, &h, addr_reg, oi, is_ld); /* Compose the final address, as LQ/STQ have no indexing. */ index = h.index; @@ -3309,14 +3282,13 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type, break; case INDEX_op_qemu_ld_i32: - tcg_out_qemu_ld(s, args[0], -1, args[1], -1, args[2], TCG_TYPE_I32); + tcg_out_qemu_ld(s, args[0], -1, args[1], args[2], TCG_TYPE_I32); break; case INDEX_op_qemu_ld_i64: if (TCG_TARGET_REG_BITS == 64) { - tcg_out_qemu_ld(s, args[0], -1, args[1], -1, - args[2], TCG_TYPE_I64); + tcg_out_qemu_ld(s, args[0], -1, args[1], args[2], TCG_TYPE_I64); } else { - tcg_out_qemu_ld(s, args[0], args[1], args[2], -1, + tcg_out_qemu_ld(s, args[0], args[1], args[2], args[3], TCG_TYPE_I64); } break; @@ -3326,14 +3298,13 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type, break; case INDEX_op_qemu_st_i32: - tcg_out_qemu_st(s, args[0], -1, args[1], -1, args[2], TCG_TYPE_I32); + tcg_out_qemu_st(s, args[0], -1, args[1], args[2], TCG_TYPE_I32); break; case INDEX_op_qemu_st_i64: if (TCG_TARGET_REG_BITS == 64) { - tcg_out_qemu_st(s, args[0], -1, args[1], -1, - args[2], TCG_TYPE_I64); + tcg_out_qemu_st(s, args[0], -1, args[1], args[2], TCG_TYPE_I64); } else { - tcg_out_qemu_st(s, args[0], args[1], args[2], -1, + tcg_out_qemu_st(s, args[0], args[1], args[2], args[3], TCG_TYPE_I64); } break;