18b453a2bSTaylor Simpson /* 2bd983f68STaylor Simpson * Copyright(c) 2019-2024 Qualcomm Innovation Center, Inc. All Rights Reserved. 38b453a2bSTaylor Simpson * 48b453a2bSTaylor Simpson * This program is free software; you can redistribute it and/or modify 58b453a2bSTaylor Simpson * it under the terms of the GNU General Public License as published by 68b453a2bSTaylor Simpson * the Free Software Foundation; either version 2 of the License, or 78b453a2bSTaylor Simpson * (at your option) any later version. 88b453a2bSTaylor Simpson * 98b453a2bSTaylor Simpson * This program is distributed in the hope that it will be useful, 108b453a2bSTaylor Simpson * but WITHOUT ANY WARRANTY; without even the implied warranty of 118b453a2bSTaylor Simpson * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 128b453a2bSTaylor Simpson * GNU General Public License for more details. 138b453a2bSTaylor Simpson * 148b453a2bSTaylor Simpson * You should have received a copy of the GNU General Public License 158b453a2bSTaylor Simpson * along with this program; if not, see <http://www.gnu.org/licenses/>. 168b453a2bSTaylor Simpson */ 178b453a2bSTaylor Simpson 188b453a2bSTaylor Simpson #define QEMU_GENERATE 198b453a2bSTaylor Simpson #include "qemu/osdep.h" 208b453a2bSTaylor Simpson #include "cpu.h" 218b453a2bSTaylor Simpson #include "tcg/tcg-op.h" 22a82dd548STaylor Simpson #include "tcg/tcg-op-gvec.h" 2313e27d1fSRichard Henderson #include "exec/helper-gen.h" 24c213ee2dSRichard Henderson #include "exec/helper-proto.h" 25d654e928SRichard Henderson #include "exec/translation-block.h" 264597463bSPhilippe Mathieu-Daudé #include "exec/cpu_ldst.h" 278b453a2bSTaylor Simpson #include "exec/log.h" 288b453a2bSTaylor Simpson #include "internal.h" 298b453a2bSTaylor Simpson #include "attribs.h" 308b453a2bSTaylor Simpson #include "insn.h" 318b453a2bSTaylor Simpson #include "decode.h" 328b453a2bSTaylor Simpson #include "translate.h" 33d54c5615STaylor Simpson #include "genptr.h" 348b453a2bSTaylor Simpson #include "printinsn.h" 358b453a2bSTaylor Simpson 36d53106c9SRichard Henderson #define HELPER_H "helper.h" 37d53106c9SRichard Henderson #include "exec/helper-info.c.inc" 38d53106c9SRichard Henderson #undef HELPER_H 39d53106c9SRichard Henderson 4010849c26STaylor Simpson #include "analyze_funcs_generated.c.inc" 4110849c26STaylor Simpson 4210849c26STaylor Simpson typedef void (*AnalyzeInsn)(DisasContext *ctx); 4310849c26STaylor Simpson static const AnalyzeInsn opcode_analyze[XX_LAST_OPCODE] = { 4410849c26STaylor Simpson #define OPCODE(X) [X] = analyze_##X 4510849c26STaylor Simpson #include "opcodes_def_generated.h.inc" 4610849c26STaylor Simpson #undef OPCODE 4710849c26STaylor Simpson }; 4810849c26STaylor Simpson 498b453a2bSTaylor Simpson TCGv hex_gpr[TOTAL_PER_THREAD_REGS]; 508b453a2bSTaylor Simpson TCGv hex_pred[NUM_PREGS]; 518b453a2bSTaylor Simpson TCGv hex_slot_cancelled; 526aa4f1d1STaylor Simpson TCGv hex_new_value_usr; 538b453a2bSTaylor Simpson TCGv hex_reg_written[TOTAL_PER_THREAD_REGS]; 548b453a2bSTaylor Simpson TCGv hex_store_addr[STORES_MAX]; 558b453a2bSTaylor Simpson TCGv hex_store_width[STORES_MAX]; 568b453a2bSTaylor Simpson TCGv hex_store_val32[STORES_MAX]; 578b453a2bSTaylor Simpson TCGv_i64 hex_store_val64[STORES_MAX]; 588b453a2bSTaylor Simpson TCGv hex_llsc_addr; 598b453a2bSTaylor Simpson TCGv hex_llsc_val; 608b453a2bSTaylor Simpson TCGv_i64 hex_llsc_val_i64; 61a82dd548STaylor Simpson TCGv hex_vstore_addr[VSTORES_MAX]; 62a82dd548STaylor Simpson TCGv hex_vstore_size[VSTORES_MAX]; 63a82dd548STaylor Simpson TCGv hex_vstore_pending[VSTORES_MAX]; 648b453a2bSTaylor Simpson 658b453a2bSTaylor Simpson static const char * const hexagon_prednames[] = { 668b453a2bSTaylor Simpson "p0", "p1", "p2", "p3" 678b453a2bSTaylor Simpson }; 688b453a2bSTaylor Simpson 69a82dd548STaylor Simpson intptr_t ctx_future_vreg_off(DisasContext *ctx, int regnum, 70a82dd548STaylor Simpson int num, bool alloc_ok) 71a82dd548STaylor Simpson { 72a82dd548STaylor Simpson intptr_t offset; 73a82dd548STaylor Simpson 74b8552985STaylor Simpson if (!ctx->need_commit) { 75b8552985STaylor Simpson return offsetof(CPUHexagonState, VRegs[regnum]); 76b8552985STaylor Simpson } 77b8552985STaylor Simpson 78a82dd548STaylor Simpson /* See if it is already allocated */ 79a82dd548STaylor Simpson for (int i = 0; i < ctx->future_vregs_idx; i++) { 80a82dd548STaylor Simpson if (ctx->future_vregs_num[i] == regnum) { 81a82dd548STaylor Simpson return offsetof(CPUHexagonState, future_VRegs[i]); 82a82dd548STaylor Simpson } 83a82dd548STaylor Simpson } 84a82dd548STaylor Simpson 85a82dd548STaylor Simpson g_assert(alloc_ok); 86a82dd548STaylor Simpson offset = offsetof(CPUHexagonState, future_VRegs[ctx->future_vregs_idx]); 87a82dd548STaylor Simpson for (int i = 0; i < num; i++) { 88a82dd548STaylor Simpson ctx->future_vregs_num[ctx->future_vregs_idx + i] = regnum++; 89a82dd548STaylor Simpson } 90a82dd548STaylor Simpson ctx->future_vregs_idx += num; 91a82dd548STaylor Simpson g_assert(ctx->future_vregs_idx <= VECTOR_TEMPS_MAX); 92a82dd548STaylor Simpson return offset; 93a82dd548STaylor Simpson } 94a82dd548STaylor Simpson 95a82dd548STaylor Simpson intptr_t ctx_tmp_vreg_off(DisasContext *ctx, int regnum, 96a82dd548STaylor Simpson int num, bool alloc_ok) 97a82dd548STaylor Simpson { 98a82dd548STaylor Simpson intptr_t offset; 99a82dd548STaylor Simpson 100a82dd548STaylor Simpson /* See if it is already allocated */ 101a82dd548STaylor Simpson for (int i = 0; i < ctx->tmp_vregs_idx; i++) { 102a82dd548STaylor Simpson if (ctx->tmp_vregs_num[i] == regnum) { 103a82dd548STaylor Simpson return offsetof(CPUHexagonState, tmp_VRegs[i]); 104a82dd548STaylor Simpson } 105a82dd548STaylor Simpson } 106a82dd548STaylor Simpson 107a82dd548STaylor Simpson g_assert(alloc_ok); 108a82dd548STaylor Simpson offset = offsetof(CPUHexagonState, tmp_VRegs[ctx->tmp_vregs_idx]); 109a82dd548STaylor Simpson for (int i = 0; i < num; i++) { 110a82dd548STaylor Simpson ctx->tmp_vregs_num[ctx->tmp_vregs_idx + i] = regnum++; 111a82dd548STaylor Simpson } 112a82dd548STaylor Simpson ctx->tmp_vregs_idx += num; 113a82dd548STaylor Simpson g_assert(ctx->tmp_vregs_idx <= VECTOR_TEMPS_MAX); 114a82dd548STaylor Simpson return offset; 115a82dd548STaylor Simpson } 116a82dd548STaylor Simpson 117743debbcSTaylor Simpson static void gen_exception_raw(int excp) 1188b453a2bSTaylor Simpson { 119ad75a51eSRichard Henderson gen_helper_raise_exception(tcg_env, tcg_constant_i32(excp)); 1208b453a2bSTaylor Simpson } 1218b453a2bSTaylor Simpson 122743debbcSTaylor Simpson static void gen_exec_counters(DisasContext *ctx) 1238b453a2bSTaylor Simpson { 124743debbcSTaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_PKT_CNT], 125743debbcSTaylor Simpson hex_gpr[HEX_REG_QEMU_PKT_CNT], ctx->num_packets); 126743debbcSTaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_INSN_CNT], 127743debbcSTaylor Simpson hex_gpr[HEX_REG_QEMU_INSN_CNT], ctx->num_insns); 128a82dd548STaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_HVX_CNT], 129a82dd548STaylor Simpson hex_gpr[HEX_REG_QEMU_HVX_CNT], ctx->num_hvx_insns); 130743debbcSTaylor Simpson } 131743debbcSTaylor Simpson 1321b9a7f2aSTaylor Simpson static bool use_goto_tb(DisasContext *ctx, target_ulong dest) 1331b9a7f2aSTaylor Simpson { 1341b9a7f2aSTaylor Simpson return translator_use_goto_tb(&ctx->base, dest); 1351b9a7f2aSTaylor Simpson } 1361b9a7f2aSTaylor Simpson 137bee1fc56SMatheus Tavares Bernardino static void gen_goto_tb(DisasContext *ctx, int idx, target_ulong dest, bool 138bee1fc56SMatheus Tavares Bernardino move_to_pc) 1391b9a7f2aSTaylor Simpson { 1401b9a7f2aSTaylor Simpson if (use_goto_tb(ctx, dest)) { 1411b9a7f2aSTaylor Simpson tcg_gen_goto_tb(idx); 142bee1fc56SMatheus Tavares Bernardino if (move_to_pc) { 1431b9a7f2aSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], dest); 144bee1fc56SMatheus Tavares Bernardino } 1451b9a7f2aSTaylor Simpson tcg_gen_exit_tb(ctx->base.tb, idx); 1461b9a7f2aSTaylor Simpson } else { 147bee1fc56SMatheus Tavares Bernardino if (move_to_pc) { 1481b9a7f2aSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], dest); 149bee1fc56SMatheus Tavares Bernardino } 1501b9a7f2aSTaylor Simpson tcg_gen_lookup_and_goto_ptr(); 1511b9a7f2aSTaylor Simpson } 1521b9a7f2aSTaylor Simpson } 1531b9a7f2aSTaylor Simpson 154743debbcSTaylor Simpson static void gen_end_tb(DisasContext *ctx) 155743debbcSTaylor Simpson { 156564b2040STaylor Simpson Packet *pkt = ctx->pkt; 157564b2040STaylor Simpson 158743debbcSTaylor Simpson gen_exec_counters(ctx); 1591b9a7f2aSTaylor Simpson 1601b9a7f2aSTaylor Simpson if (ctx->branch_cond != TCG_COND_NEVER) { 1611b9a7f2aSTaylor Simpson if (ctx->branch_cond != TCG_COND_ALWAYS) { 1621b9a7f2aSTaylor Simpson TCGLabel *skip = gen_new_label(); 1630fc56c43STaylor Simpson tcg_gen_brcondi_tl(ctx->branch_cond, ctx->branch_taken, 0, skip); 164bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 0, ctx->branch_dest, true); 1651b9a7f2aSTaylor Simpson gen_set_label(skip); 166bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 1, ctx->next_PC, false); 1671b9a7f2aSTaylor Simpson } else { 168bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 0, ctx->branch_dest, true); 1691b9a7f2aSTaylor Simpson } 170564b2040STaylor Simpson } else if (ctx->is_tight_loop && 171564b2040STaylor Simpson pkt->insn[pkt->num_insns - 1].opcode == J2_endloop0) { 172564b2040STaylor Simpson /* 173564b2040STaylor Simpson * When we're in a tight loop, we defer the endloop0 processing 174564b2040STaylor Simpson * to take advantage of direct block chaining 175564b2040STaylor Simpson */ 176564b2040STaylor Simpson TCGLabel *skip = gen_new_label(); 177564b2040STaylor Simpson tcg_gen_brcondi_tl(TCG_COND_LEU, hex_gpr[HEX_REG_LC0], 1, skip); 178564b2040STaylor Simpson tcg_gen_subi_tl(hex_gpr[HEX_REG_LC0], hex_gpr[HEX_REG_LC0], 1); 179bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 0, ctx->base.tb->pc, true); 180564b2040STaylor Simpson gen_set_label(skip); 181bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 1, ctx->next_PC, false); 1821b9a7f2aSTaylor Simpson } else { 1831b9a7f2aSTaylor Simpson tcg_gen_lookup_and_goto_ptr(); 1841b9a7f2aSTaylor Simpson } 1851b9a7f2aSTaylor Simpson 186743debbcSTaylor Simpson ctx->base.is_jmp = DISAS_NORETURN; 187743debbcSTaylor Simpson } 188743debbcSTaylor Simpson 189743debbcSTaylor Simpson static void gen_exception_end_tb(DisasContext *ctx, int excp) 190743debbcSTaylor Simpson { 191743debbcSTaylor Simpson gen_exec_counters(ctx); 192613653e5STaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], ctx->next_PC); 193743debbcSTaylor Simpson gen_exception_raw(excp); 194743debbcSTaylor Simpson ctx->base.is_jmp = DISAS_NORETURN; 195743debbcSTaylor Simpson 1968b453a2bSTaylor Simpson } 1978b453a2bSTaylor Simpson 1988b453a2bSTaylor Simpson #define PACKET_BUFFER_LEN 1028 1998b453a2bSTaylor Simpson static void print_pkt(Packet *pkt) 2008b453a2bSTaylor Simpson { 2018b453a2bSTaylor Simpson GString *buf = g_string_sized_new(PACKET_BUFFER_LEN); 2028b453a2bSTaylor Simpson snprint_a_pkt_debug(buf, pkt); 2038b453a2bSTaylor Simpson HEX_DEBUG_LOG("%s", buf->str); 2048b453a2bSTaylor Simpson g_string_free(buf, true); 2058b453a2bSTaylor Simpson } 20685580a65STaylor Simpson #define HEX_DEBUG_PRINT_PKT(pkt) \ 20785580a65STaylor Simpson do { \ 20885580a65STaylor Simpson if (HEX_DEBUG) { \ 20985580a65STaylor Simpson print_pkt(pkt); \ 21085580a65STaylor Simpson } \ 21185580a65STaylor Simpson } while (0) 2128b453a2bSTaylor Simpson 2138b453a2bSTaylor Simpson static int read_packet_words(CPUHexagonState *env, DisasContext *ctx, 2148b453a2bSTaylor Simpson uint32_t words[]) 2158b453a2bSTaylor Simpson { 2168b453a2bSTaylor Simpson bool found_end = false; 2178b453a2bSTaylor Simpson int nwords, max_words; 2188b453a2bSTaylor Simpson 2198b453a2bSTaylor Simpson memset(words, 0, PACKET_WORDS_MAX * sizeof(uint32_t)); 2208b453a2bSTaylor Simpson for (nwords = 0; !found_end && nwords < PACKET_WORDS_MAX; nwords++) { 221a27c100cSTaylor Simpson words[nwords] = 2224e116893SIlya Leoshkevich translator_ldl(env, &ctx->base, 2234e116893SIlya Leoshkevich ctx->base.pc_next + nwords * sizeof(uint32_t)); 2248b453a2bSTaylor Simpson found_end = is_packet_end(words[nwords]); 2258b453a2bSTaylor Simpson } 2268b453a2bSTaylor Simpson if (!found_end) { 2278b453a2bSTaylor Simpson /* Read too many words without finding the end */ 2288b453a2bSTaylor Simpson return 0; 2298b453a2bSTaylor Simpson } 2308b453a2bSTaylor Simpson 2318b453a2bSTaylor Simpson /* Check for page boundary crossing */ 2328b453a2bSTaylor Simpson max_words = -(ctx->base.pc_next | TARGET_PAGE_MASK) / sizeof(uint32_t); 2338b453a2bSTaylor Simpson if (nwords > max_words) { 2348b453a2bSTaylor Simpson /* We can only cross a page boundary at the beginning of a TB */ 2358b453a2bSTaylor Simpson g_assert(ctx->base.num_insns == 1); 2368b453a2bSTaylor Simpson } 2378b453a2bSTaylor Simpson 23885c19af6SAnton Johansson HEX_DEBUG_LOG("decode_packet: pc = 0x%" VADDR_PRIx "\n", 23985c19af6SAnton Johansson ctx->base.pc_next); 2408b453a2bSTaylor Simpson HEX_DEBUG_LOG(" words = { "); 2418b453a2bSTaylor Simpson for (int i = 0; i < nwords; i++) { 2428b453a2bSTaylor Simpson HEX_DEBUG_LOG("0x%x, ", words[i]); 2438b453a2bSTaylor Simpson } 2448b453a2bSTaylor Simpson HEX_DEBUG_LOG("}\n"); 2458b453a2bSTaylor Simpson 2468b453a2bSTaylor Simpson return nwords; 2478b453a2bSTaylor Simpson } 2488b453a2bSTaylor Simpson 249d54c5615STaylor Simpson static bool check_for_attrib(Packet *pkt, int attrib) 2508b453a2bSTaylor Simpson { 2518b453a2bSTaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 2528b453a2bSTaylor Simpson if (GET_ATTRIB(pkt->insn[i].opcode, attrib)) { 2538b453a2bSTaylor Simpson return true; 2548b453a2bSTaylor Simpson } 2558b453a2bSTaylor Simpson } 2568b453a2bSTaylor Simpson return false; 2578b453a2bSTaylor Simpson } 2588b453a2bSTaylor Simpson 2598b453a2bSTaylor Simpson static bool need_slot_cancelled(Packet *pkt) 2608b453a2bSTaylor Simpson { 261c2b33d0bSTaylor Simpson /* We only need slot_cancelled for conditional store instructions */ 2627b84fd04STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 2637b84fd04STaylor Simpson uint16_t opcode = pkt->insn[i].opcode; 2647b84fd04STaylor Simpson if (GET_ATTRIB(opcode, A_CONDEXEC) && 265c2b33d0bSTaylor Simpson GET_ATTRIB(opcode, A_SCALAR_STORE)) { 2667b84fd04STaylor Simpson return true; 2677b84fd04STaylor Simpson } 2687b84fd04STaylor Simpson } 2697b84fd04STaylor Simpson return false; 2708b453a2bSTaylor Simpson } 2718b453a2bSTaylor Simpson 272613653e5STaylor Simpson static bool need_next_PC(DisasContext *ctx) 273613653e5STaylor Simpson { 274613653e5STaylor Simpson Packet *pkt = ctx->pkt; 275613653e5STaylor Simpson 276613653e5STaylor Simpson /* Check for conditional control flow or HW loop end */ 277613653e5STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 278613653e5STaylor Simpson uint16_t opcode = pkt->insn[i].opcode; 279613653e5STaylor Simpson if (GET_ATTRIB(opcode, A_CONDEXEC) && GET_ATTRIB(opcode, A_COF)) { 280613653e5STaylor Simpson return true; 281613653e5STaylor Simpson } 282613653e5STaylor Simpson if (GET_ATTRIB(opcode, A_HWLOOP0_END) || 283613653e5STaylor Simpson GET_ATTRIB(opcode, A_HWLOOP1_END)) { 284613653e5STaylor Simpson return true; 285613653e5STaylor Simpson } 286613653e5STaylor Simpson } 287613653e5STaylor Simpson return false; 288613653e5STaylor Simpson } 289613653e5STaylor Simpson 29010849c26STaylor Simpson /* 29110849c26STaylor Simpson * The opcode_analyze functions mark most of the writes in a packet 29210849c26STaylor Simpson * However, there are some implicit writes marked as attributes 29310849c26STaylor Simpson * of the applicable instructions. 29410849c26STaylor Simpson */ 29510849c26STaylor Simpson static void mark_implicit_reg_write(DisasContext *ctx, int attrib, int rnum) 29610849c26STaylor Simpson { 29710849c26STaylor Simpson uint16_t opcode = ctx->insn->opcode; 29810849c26STaylor Simpson if (GET_ATTRIB(opcode, attrib)) { 29910849c26STaylor Simpson /* 30010849c26STaylor Simpson * USR is used to set overflow and FP exceptions, 30110849c26STaylor Simpson * so treat it as conditional 30210849c26STaylor Simpson */ 30310849c26STaylor Simpson bool is_predicated = GET_ATTRIB(opcode, A_CONDEXEC) || 30410849c26STaylor Simpson rnum == HEX_REG_USR; 30510849c26STaylor Simpson 30610849c26STaylor Simpson /* LC0/LC1 is conditionally written by endloop instructions */ 30710849c26STaylor Simpson if ((rnum == HEX_REG_LC0 || rnum == HEX_REG_LC1) && 30810849c26STaylor Simpson (opcode == J2_endloop0 || 30910849c26STaylor Simpson opcode == J2_endloop1 || 31010849c26STaylor Simpson opcode == J2_endloop01)) { 31110849c26STaylor Simpson is_predicated = true; 31210849c26STaylor Simpson } 31310849c26STaylor Simpson 31410849c26STaylor Simpson ctx_log_reg_write(ctx, rnum, is_predicated); 31510849c26STaylor Simpson } 31610849c26STaylor Simpson } 31710849c26STaylor Simpson 31810849c26STaylor Simpson static void mark_implicit_reg_writes(DisasContext *ctx) 31910849c26STaylor Simpson { 32010849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_FP, HEX_REG_FP); 32110849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_SP, HEX_REG_SP); 32210849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_LR, HEX_REG_LR); 32310849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_LC0, HEX_REG_LC0); 32410849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_SA0, HEX_REG_SA0); 32510849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_LC1, HEX_REG_LC1); 32610849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_SA1, HEX_REG_SA1); 32710849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_USR, HEX_REG_USR); 32810849c26STaylor Simpson mark_implicit_reg_write(ctx, A_FPOP, HEX_REG_USR); 32910849c26STaylor Simpson } 33010849c26STaylor Simpson 33110849c26STaylor Simpson static void mark_implicit_pred_write(DisasContext *ctx, int attrib, int pnum) 33210849c26STaylor Simpson { 33310849c26STaylor Simpson if (GET_ATTRIB(ctx->insn->opcode, attrib)) { 33410849c26STaylor Simpson ctx_log_pred_write(ctx, pnum); 33510849c26STaylor Simpson } 33610849c26STaylor Simpson } 33710849c26STaylor Simpson 33810849c26STaylor Simpson static void mark_implicit_pred_writes(DisasContext *ctx) 33910849c26STaylor Simpson { 34010849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P0, 0); 34110849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P1, 1); 34210849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P2, 2); 34310849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P3, 3); 34410849c26STaylor Simpson } 34510849c26STaylor Simpson 346d54c5615STaylor Simpson static bool pkt_raises_exception(Packet *pkt) 347d54c5615STaylor Simpson { 348d54c5615STaylor Simpson if (check_for_attrib(pkt, A_LOAD) || 349d54c5615STaylor Simpson check_for_attrib(pkt, A_STORE)) { 350d54c5615STaylor Simpson return true; 351d54c5615STaylor Simpson } 352d54c5615STaylor Simpson return false; 353d54c5615STaylor Simpson } 354d54c5615STaylor Simpson 355d54c5615STaylor Simpson static bool need_commit(DisasContext *ctx) 356d54c5615STaylor Simpson { 357d54c5615STaylor Simpson Packet *pkt = ctx->pkt; 358d54c5615STaylor Simpson 359d54c5615STaylor Simpson /* 360d54c5615STaylor Simpson * If the short-circuit property is set to false, we'll always do the commit 361d54c5615STaylor Simpson */ 362d54c5615STaylor Simpson if (!ctx->short_circuit) { 363d54c5615STaylor Simpson return true; 364d54c5615STaylor Simpson } 365d54c5615STaylor Simpson 366d54c5615STaylor Simpson if (pkt_raises_exception(pkt)) { 367d54c5615STaylor Simpson return true; 368d54c5615STaylor Simpson } 369d54c5615STaylor Simpson 370d54c5615STaylor Simpson /* Registers with immutability flags require new_value */ 371d54c5615STaylor Simpson for (int i = 0; i < ctx->reg_log_idx; i++) { 372d54c5615STaylor Simpson int rnum = ctx->reg_log[i]; 373d54c5615STaylor Simpson if (reg_immut_masks[rnum]) { 374d54c5615STaylor Simpson return true; 375d54c5615STaylor Simpson } 376d54c5615STaylor Simpson } 377d54c5615STaylor Simpson 378d54c5615STaylor Simpson /* Floating point instructions are hard-coded to use new_value */ 379d54c5615STaylor Simpson if (check_for_attrib(pkt, A_FPOP)) { 380d54c5615STaylor Simpson return true; 381d54c5615STaylor Simpson } 382d54c5615STaylor Simpson 383*763d2ce7STaylor Simpson if (ctx->read_after_write || ctx->has_hvx_overlap) { 384d54c5615STaylor Simpson return true; 385d54c5615STaylor Simpson } 386455e169dSTaylor Simpson 387d54c5615STaylor Simpson return false; 388d54c5615STaylor Simpson } 389d54c5615STaylor Simpson 390b9f0326bSTaylor Simpson static void mark_implicit_pred_read(DisasContext *ctx, int attrib, int pnum) 391b9f0326bSTaylor Simpson { 392b9f0326bSTaylor Simpson if (GET_ATTRIB(ctx->insn->opcode, attrib)) { 393b9f0326bSTaylor Simpson ctx_log_pred_read(ctx, pnum); 394b9f0326bSTaylor Simpson } 395b9f0326bSTaylor Simpson } 396b9f0326bSTaylor Simpson 397b9f0326bSTaylor Simpson static void mark_implicit_pred_reads(DisasContext *ctx) 398b9f0326bSTaylor Simpson { 399b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P0, 0); 400b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P1, 1); 401b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P3, 2); 402b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P3, 3); 403b9f0326bSTaylor Simpson } 404b9f0326bSTaylor Simpson 40510849c26STaylor Simpson static void analyze_packet(DisasContext *ctx) 40610849c26STaylor Simpson { 40710849c26STaylor Simpson Packet *pkt = ctx->pkt; 408bd983f68STaylor Simpson ctx->read_after_write = false; 409*763d2ce7STaylor Simpson ctx->has_hvx_overlap = false; 41010849c26STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 41110849c26STaylor Simpson Insn *insn = &pkt->insn[i]; 41210849c26STaylor Simpson ctx->insn = insn; 41310849c26STaylor Simpson if (opcode_analyze[insn->opcode]) { 41410849c26STaylor Simpson opcode_analyze[insn->opcode](ctx); 41510849c26STaylor Simpson } 41610849c26STaylor Simpson mark_implicit_reg_writes(ctx); 41710849c26STaylor Simpson mark_implicit_pred_writes(ctx); 418b9f0326bSTaylor Simpson mark_implicit_pred_reads(ctx); 41910849c26STaylor Simpson } 420d54c5615STaylor Simpson 421d54c5615STaylor Simpson ctx->need_commit = need_commit(ctx); 42210849c26STaylor Simpson } 42310849c26STaylor Simpson 4241e536334STaylor Simpson static void gen_start_packet(DisasContext *ctx) 4258b453a2bSTaylor Simpson { 4261e536334STaylor Simpson Packet *pkt = ctx->pkt; 4278b453a2bSTaylor Simpson target_ulong next_PC = ctx->base.pc_next + pkt->encod_pkt_size_in_bytes; 4288b453a2bSTaylor Simpson int i; 4298b453a2bSTaylor Simpson 4308b453a2bSTaylor Simpson /* Clear out the disassembly context */ 431613653e5STaylor Simpson ctx->next_PC = next_PC; 4328b453a2bSTaylor Simpson ctx->reg_log_idx = 0; 4338b453a2bSTaylor Simpson bitmap_zero(ctx->regs_written, TOTAL_PER_THREAD_REGS); 43410849c26STaylor Simpson bitmap_zero(ctx->predicated_regs, TOTAL_PER_THREAD_REGS); 4358b453a2bSTaylor Simpson ctx->preg_log_idx = 0; 4366c677c60STaylor Simpson bitmap_zero(ctx->pregs_written, NUM_PREGS); 437a82dd548STaylor Simpson ctx->future_vregs_idx = 0; 438a82dd548STaylor Simpson ctx->tmp_vregs_idx = 0; 439a82dd548STaylor Simpson ctx->vreg_log_idx = 0; 440*763d2ce7STaylor Simpson bitmap_zero(ctx->vregs_written, NUM_VREGS); 441a82dd548STaylor Simpson bitmap_zero(ctx->vregs_updated_tmp, NUM_VREGS); 442a82dd548STaylor Simpson bitmap_zero(ctx->vregs_updated, NUM_VREGS); 443a82dd548STaylor Simpson bitmap_zero(ctx->vregs_select, NUM_VREGS); 4444d6f8420STaylor Simpson bitmap_zero(ctx->predicated_future_vregs, NUM_VREGS); 4454d6f8420STaylor Simpson bitmap_zero(ctx->predicated_tmp_vregs, NUM_VREGS); 446*763d2ce7STaylor Simpson bitmap_zero(ctx->qregs_written, NUM_QREGS); 447a82dd548STaylor Simpson ctx->qreg_log_idx = 0; 4488b453a2bSTaylor Simpson for (i = 0; i < STORES_MAX; i++) { 4498b453a2bSTaylor Simpson ctx->store_width[i] = 0; 4508b453a2bSTaylor Simpson } 45192cfa25fSTaylor Simpson ctx->s1_store_processed = false; 452a82dd548STaylor Simpson ctx->pre_commit = true; 4534ff56764STaylor Simpson for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) { 4544ff56764STaylor Simpson ctx->new_value[i] = NULL; 4554ff56764STaylor Simpson } 456e22edc7cSTaylor Simpson for (i = 0; i < NUM_PREGS; i++) { 457e22edc7cSTaylor Simpson ctx->new_pred_value[i] = NULL; 458e22edc7cSTaylor Simpson } 4598b453a2bSTaylor Simpson 46010849c26STaylor Simpson analyze_packet(ctx); 46110849c26STaylor Simpson 46210849c26STaylor Simpson /* 46310849c26STaylor Simpson * pregs_written is used both in the analyze phase as well as the code 46410849c26STaylor Simpson * gen phase, so clear it again. 46510849c26STaylor Simpson */ 46610849c26STaylor Simpson bitmap_zero(ctx->pregs_written, NUM_PREGS); 46710849c26STaylor Simpson 46885580a65STaylor Simpson if (HEX_DEBUG) { 4698b453a2bSTaylor Simpson /* Handy place to set a breakpoint before the packet executes */ 470ad75a51eSRichard Henderson gen_helper_debug_start_packet(tcg_env); 47185580a65STaylor Simpson } 4728b453a2bSTaylor Simpson 4738b453a2bSTaylor Simpson /* Initialize the runtime state for packet semantics */ 4748b453a2bSTaylor Simpson if (need_slot_cancelled(pkt)) { 4758b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_slot_cancelled, 0); 4768b453a2bSTaylor Simpson } 4770fc56c43STaylor Simpson ctx->branch_taken = NULL; 4788b453a2bSTaylor Simpson if (pkt->pkt_has_cof) { 4790fc56c43STaylor Simpson ctx->branch_taken = tcg_temp_new(); 480fb67c2bfSTaylor Simpson if (pkt->pkt_has_multi_cof) { 4810fc56c43STaylor Simpson tcg_gen_movi_tl(ctx->branch_taken, 0); 482fb67c2bfSTaylor Simpson } 483613653e5STaylor Simpson if (need_next_PC(ctx)) { 484613653e5STaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], next_PC); 485613653e5STaylor Simpson } 4868b453a2bSTaylor Simpson } 48725e1d87dSTaylor Simpson if (HEX_DEBUG) { 488842b206fSTaylor Simpson ctx->pred_written = tcg_temp_new(); 489842b206fSTaylor Simpson tcg_gen_movi_tl(ctx->pred_written, 0); 4908b453a2bSTaylor Simpson } 491a82dd548STaylor Simpson 4926aa4f1d1STaylor Simpson /* Preload the predicated registers into get_result_gpr(ctx, i) */ 493d54c5615STaylor Simpson if (ctx->need_commit && 494d54c5615STaylor Simpson !bitmap_empty(ctx->predicated_regs, TOTAL_PER_THREAD_REGS)) { 49520c34a92SBrian Cain i = find_first_bit(ctx->predicated_regs, TOTAL_PER_THREAD_REGS); 49610849c26STaylor Simpson while (i < TOTAL_PER_THREAD_REGS) { 4976aa4f1d1STaylor Simpson tcg_gen_mov_tl(get_result_gpr(ctx, i), hex_gpr[i]); 49810849c26STaylor Simpson i = find_next_bit(ctx->predicated_regs, TOTAL_PER_THREAD_REGS, 49910849c26STaylor Simpson i + 1); 50010849c26STaylor Simpson } 50110849c26STaylor Simpson } 50210849c26STaylor Simpson 50325e1d87dSTaylor Simpson /* 5042babbd93SMatheus Tavares Bernardino * Preload the predicated pred registers into ctx->new_pred_value[pred_num] 50525e1d87dSTaylor Simpson * Only endloop instructions conditionally write to pred registers 50625e1d87dSTaylor Simpson */ 507455e169dSTaylor Simpson if (ctx->need_commit && pkt->pkt_has_endloop) { 50820c34a92SBrian Cain for (i = 0; i < ctx->preg_log_idx; i++) { 50925e1d87dSTaylor Simpson int pred_num = ctx->preg_log[i]; 510e22edc7cSTaylor Simpson ctx->new_pred_value[pred_num] = tcg_temp_new(); 511e22edc7cSTaylor Simpson tcg_gen_mov_tl(ctx->new_pred_value[pred_num], hex_pred[pred_num]); 51225e1d87dSTaylor Simpson } 51325e1d87dSTaylor Simpson } 51425e1d87dSTaylor Simpson 5154d6f8420STaylor Simpson /* Preload the predicated HVX registers into future_VRegs and tmp_VRegs */ 5164d6f8420STaylor Simpson if (!bitmap_empty(ctx->predicated_future_vregs, NUM_VREGS)) { 51720c34a92SBrian Cain i = find_first_bit(ctx->predicated_future_vregs, NUM_VREGS); 5184d6f8420STaylor Simpson while (i < NUM_VREGS) { 5194d6f8420STaylor Simpson const intptr_t VdV_off = 5204d6f8420STaylor Simpson ctx_future_vreg_off(ctx, i, 1, true); 5214d6f8420STaylor Simpson intptr_t src_off = offsetof(CPUHexagonState, VRegs[i]); 5224d6f8420STaylor Simpson tcg_gen_gvec_mov(MO_64, VdV_off, 5234d6f8420STaylor Simpson src_off, 5244d6f8420STaylor Simpson sizeof(MMVector), 5254d6f8420STaylor Simpson sizeof(MMVector)); 5264d6f8420STaylor Simpson i = find_next_bit(ctx->predicated_future_vregs, NUM_VREGS, i + 1); 5274d6f8420STaylor Simpson } 5284d6f8420STaylor Simpson } 5294d6f8420STaylor Simpson if (!bitmap_empty(ctx->predicated_tmp_vregs, NUM_VREGS)) { 53020c34a92SBrian Cain i = find_first_bit(ctx->predicated_tmp_vregs, NUM_VREGS); 5314d6f8420STaylor Simpson while (i < NUM_VREGS) { 5324d6f8420STaylor Simpson const intptr_t VdV_off = 5334d6f8420STaylor Simpson ctx_tmp_vreg_off(ctx, i, 1, true); 5344d6f8420STaylor Simpson intptr_t src_off = offsetof(CPUHexagonState, VRegs[i]); 5354d6f8420STaylor Simpson tcg_gen_gvec_mov(MO_64, VdV_off, 5364d6f8420STaylor Simpson src_off, 5374d6f8420STaylor Simpson sizeof(MMVector), 5384d6f8420STaylor Simpson sizeof(MMVector)); 5394d6f8420STaylor Simpson i = find_next_bit(ctx->predicated_tmp_vregs, NUM_VREGS, i + 1); 5404d6f8420STaylor Simpson } 5414d6f8420STaylor Simpson } 542a82dd548STaylor Simpson } 543a82dd548STaylor Simpson 5441e536334STaylor Simpson bool is_gather_store_insn(DisasContext *ctx) 545a82dd548STaylor Simpson { 5461e536334STaylor Simpson Packet *pkt = ctx->pkt; 5471e536334STaylor Simpson Insn *insn = ctx->insn; 548a82dd548STaylor Simpson if (GET_ATTRIB(insn->opcode, A_CVI_NEW) && 549a82dd548STaylor Simpson insn->new_value_producer_slot == 1) { 550a82dd548STaylor Simpson /* Look for gather instruction */ 551a82dd548STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 552a82dd548STaylor Simpson Insn *in = &pkt->insn[i]; 553a82dd548STaylor Simpson if (GET_ATTRIB(in->opcode, A_CVI_GATHER) && in->slot == 1) { 554a82dd548STaylor Simpson return true; 555a82dd548STaylor Simpson } 556a82dd548STaylor Simpson } 557a82dd548STaylor Simpson } 558a82dd548STaylor Simpson return false; 5598b453a2bSTaylor Simpson } 5608b453a2bSTaylor Simpson 5611e536334STaylor Simpson static void mark_store_width(DisasContext *ctx) 562661ad999STaylor Simpson { 5631e536334STaylor Simpson uint16_t opcode = ctx->insn->opcode; 5641e536334STaylor Simpson uint32_t slot = ctx->insn->slot; 565661ad999STaylor Simpson uint8_t width = 0; 566661ad999STaylor Simpson 567661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_SCALAR_STORE)) { 568406c74f2STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_0B)) { 569406c74f2STaylor Simpson return; 570406c74f2STaylor Simpson } 571661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_1B)) { 572661ad999STaylor Simpson width |= 1; 573661ad999STaylor Simpson } 574661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_2B)) { 575661ad999STaylor Simpson width |= 2; 576661ad999STaylor Simpson } 577661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_4B)) { 578661ad999STaylor Simpson width |= 4; 579661ad999STaylor Simpson } 580661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_8B)) { 581661ad999STaylor Simpson width |= 8; 582661ad999STaylor Simpson } 583661ad999STaylor Simpson tcg_debug_assert(is_power_of_2(width)); 584661ad999STaylor Simpson ctx->store_width[slot] = width; 585661ad999STaylor Simpson } 586661ad999STaylor Simpson } 587661ad999STaylor Simpson 5881e536334STaylor Simpson static void gen_insn(DisasContext *ctx) 5898b453a2bSTaylor Simpson { 5901e536334STaylor Simpson if (ctx->insn->generate) { 5911e536334STaylor Simpson ctx->insn->generate(ctx); 5921e536334STaylor Simpson mark_store_width(ctx); 5938b453a2bSTaylor Simpson } else { 594743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_OPCODE); 5958b453a2bSTaylor Simpson } 5968b453a2bSTaylor Simpson } 5978b453a2bSTaylor Simpson 5988b453a2bSTaylor Simpson /* 5998b453a2bSTaylor Simpson * Helpers for generating the packet commit 6008b453a2bSTaylor Simpson */ 6018b453a2bSTaylor Simpson static void gen_reg_writes(DisasContext *ctx) 6028b453a2bSTaylor Simpson { 6038b453a2bSTaylor Simpson int i; 6048b453a2bSTaylor Simpson 605d54c5615STaylor Simpson /* Early exit if not needed */ 606d54c5615STaylor Simpson if (!ctx->need_commit) { 607d54c5615STaylor Simpson return; 608d54c5615STaylor Simpson } 609d54c5615STaylor Simpson 6108b453a2bSTaylor Simpson for (i = 0; i < ctx->reg_log_idx; i++) { 6118b453a2bSTaylor Simpson int reg_num = ctx->reg_log[i]; 6128b453a2bSTaylor Simpson 6136aa4f1d1STaylor Simpson tcg_gen_mov_tl(hex_gpr[reg_num], get_result_gpr(ctx, reg_num)); 614564b2040STaylor Simpson 615564b2040STaylor Simpson /* 616564b2040STaylor Simpson * ctx->is_tight_loop is set when SA0 points to the beginning of the TB. 617564b2040STaylor Simpson * If we write to SA0, we have to turn off tight loop handling. 618564b2040STaylor Simpson */ 619564b2040STaylor Simpson if (reg_num == HEX_REG_SA0) { 620564b2040STaylor Simpson ctx->is_tight_loop = false; 621564b2040STaylor Simpson } 6228b453a2bSTaylor Simpson } 6238b453a2bSTaylor Simpson } 6248b453a2bSTaylor Simpson 6251e536334STaylor Simpson static void gen_pred_writes(DisasContext *ctx) 6268b453a2bSTaylor Simpson { 627455e169dSTaylor Simpson /* Early exit if not needed or the log is empty */ 628455e169dSTaylor Simpson if (!ctx->need_commit || !ctx->preg_log_idx) { 6298b453a2bSTaylor Simpson return; 6308b453a2bSTaylor Simpson } 6318b453a2bSTaylor Simpson 63225e1d87dSTaylor Simpson for (int i = 0; i < ctx->preg_log_idx; i++) { 6338b453a2bSTaylor Simpson int pred_num = ctx->preg_log[i]; 634e22edc7cSTaylor Simpson tcg_gen_mov_tl(hex_pred[pred_num], ctx->new_pred_value[pred_num]); 6358b453a2bSTaylor Simpson } 6368b453a2bSTaylor Simpson } 6378b453a2bSTaylor Simpson 638a27c100cSTaylor Simpson static void gen_check_store_width(DisasContext *ctx, int slot_num) 6398b453a2bSTaylor Simpson { 64085580a65STaylor Simpson if (HEX_DEBUG) { 64123803bbeSPhilippe Mathieu-Daudé TCGv slot = tcg_constant_tl(slot_num); 64223803bbeSPhilippe Mathieu-Daudé TCGv check = tcg_constant_tl(ctx->store_width[slot_num]); 643ad75a51eSRichard Henderson gen_helper_debug_check_store_width(tcg_env, slot, check); 64485580a65STaylor Simpson } 645a27c100cSTaylor Simpson } 6468b453a2bSTaylor Simpson 6478b453a2bSTaylor Simpson static bool slot_is_predicated(Packet *pkt, int slot_num) 6488b453a2bSTaylor Simpson { 6498b453a2bSTaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 6508b453a2bSTaylor Simpson if (pkt->insn[i].slot == slot_num) { 6518b453a2bSTaylor Simpson return GET_ATTRIB(pkt->insn[i].opcode, A_CONDEXEC); 6528b453a2bSTaylor Simpson } 6538b453a2bSTaylor Simpson } 6548b453a2bSTaylor Simpson /* If we get to here, we didn't find an instruction in the requested slot */ 6558b453a2bSTaylor Simpson g_assert_not_reached(); 6568b453a2bSTaylor Simpson } 6578b453a2bSTaylor Simpson 6581e536334STaylor Simpson void process_store(DisasContext *ctx, int slot_num) 6598b453a2bSTaylor Simpson { 6601e536334STaylor Simpson bool is_predicated = slot_is_predicated(ctx->pkt, slot_num); 6618b453a2bSTaylor Simpson TCGLabel *label_end = NULL; 6628b453a2bSTaylor Simpson 6638b453a2bSTaylor Simpson /* 6648b453a2bSTaylor Simpson * We may have already processed this store 6658b453a2bSTaylor Simpson * See CHECK_NOSHUF in macros.h 6668b453a2bSTaylor Simpson */ 6678b453a2bSTaylor Simpson if (slot_num == 1 && ctx->s1_store_processed) { 6688b453a2bSTaylor Simpson return; 6698b453a2bSTaylor Simpson } 67092cfa25fSTaylor Simpson ctx->s1_store_processed = true; 6718b453a2bSTaylor Simpson 6728b453a2bSTaylor Simpson if (is_predicated) { 6738b453a2bSTaylor Simpson TCGv cancelled = tcg_temp_new(); 6748b453a2bSTaylor Simpson label_end = gen_new_label(); 6758b453a2bSTaylor Simpson 6768b453a2bSTaylor Simpson /* Don't do anything if the slot was cancelled */ 6778b453a2bSTaylor Simpson tcg_gen_extract_tl(cancelled, hex_slot_cancelled, slot_num, 1); 6788b453a2bSTaylor Simpson tcg_gen_brcondi_tl(TCG_COND_NE, cancelled, 0, label_end); 6798b453a2bSTaylor Simpson } 6808b453a2bSTaylor Simpson { 6817a819de8SRichard Henderson TCGv address = tcg_temp_new(); 6828b453a2bSTaylor Simpson tcg_gen_mov_tl(address, hex_store_addr[slot_num]); 6838b453a2bSTaylor Simpson 6848b453a2bSTaylor Simpson /* 6858b453a2bSTaylor Simpson * If we know the width from the DisasContext, we can 6868b453a2bSTaylor Simpson * generate much cleaner code. 6878b453a2bSTaylor Simpson * Unfortunately, not all instructions execute the fSTORE 6888b453a2bSTaylor Simpson * macro during code generation. Anything that uses the 6898b453a2bSTaylor Simpson * generic helper will have this problem. Instructions 6908b453a2bSTaylor Simpson * that use fWRAP to generate proper TCG code will be OK. 6918b453a2bSTaylor Simpson */ 6928b453a2bSTaylor Simpson switch (ctx->store_width[slot_num]) { 6938b453a2bSTaylor Simpson case 1: 694a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 69553b26d25SRichard Henderson tcg_gen_qemu_st_tl(hex_store_val32[slot_num], 6968b453a2bSTaylor Simpson hex_store_addr[slot_num], 69753b26d25SRichard Henderson ctx->mem_idx, MO_UB); 6988b453a2bSTaylor Simpson break; 6998b453a2bSTaylor Simpson case 2: 700a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 70153b26d25SRichard Henderson tcg_gen_qemu_st_tl(hex_store_val32[slot_num], 7028b453a2bSTaylor Simpson hex_store_addr[slot_num], 70353b26d25SRichard Henderson ctx->mem_idx, MO_TEUW); 7048b453a2bSTaylor Simpson break; 7058b453a2bSTaylor Simpson case 4: 706a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 70753b26d25SRichard Henderson tcg_gen_qemu_st_tl(hex_store_val32[slot_num], 7088b453a2bSTaylor Simpson hex_store_addr[slot_num], 70953b26d25SRichard Henderson ctx->mem_idx, MO_TEUL); 7108b453a2bSTaylor Simpson break; 7118b453a2bSTaylor Simpson case 8: 712a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 71353b26d25SRichard Henderson tcg_gen_qemu_st_i64(hex_store_val64[slot_num], 7148b453a2bSTaylor Simpson hex_store_addr[slot_num], 71553b26d25SRichard Henderson ctx->mem_idx, MO_TEUQ); 7168b453a2bSTaylor Simpson break; 7178b453a2bSTaylor Simpson default: 7188b453a2bSTaylor Simpson { 7198b453a2bSTaylor Simpson /* 7208b453a2bSTaylor Simpson * If we get to here, we don't know the width at 7218b453a2bSTaylor Simpson * TCG generation time, we'll use a helper to 7228b453a2bSTaylor Simpson * avoid branching based on the width at runtime. 7238b453a2bSTaylor Simpson */ 72423803bbeSPhilippe Mathieu-Daudé TCGv slot = tcg_constant_tl(slot_num); 725ad75a51eSRichard Henderson gen_helper_commit_store(tcg_env, slot); 7268b453a2bSTaylor Simpson } 7278b453a2bSTaylor Simpson } 7288b453a2bSTaylor Simpson } 7298b453a2bSTaylor Simpson if (is_predicated) { 7308b453a2bSTaylor Simpson gen_set_label(label_end); 7318b453a2bSTaylor Simpson } 7328b453a2bSTaylor Simpson } 7338b453a2bSTaylor Simpson 7341e536334STaylor Simpson static void process_store_log(DisasContext *ctx) 7358b453a2bSTaylor Simpson { 7368b453a2bSTaylor Simpson /* 7378b453a2bSTaylor Simpson * When a packet has two stores, the hardware processes 738c23b5764STaylor Simpson * slot 1 and then slot 0. This will be important when 7398b453a2bSTaylor Simpson * the memory accesses overlap. 7408b453a2bSTaylor Simpson */ 7411e536334STaylor Simpson Packet *pkt = ctx->pkt; 742e2be9a5cSTaylor Simpson if (pkt->pkt_has_store_s1) { 743e2be9a5cSTaylor Simpson g_assert(!pkt->pkt_has_dczeroa); 7441e536334STaylor Simpson process_store(ctx, 1); 7458b453a2bSTaylor Simpson } 746e2be9a5cSTaylor Simpson if (pkt->pkt_has_store_s0) { 747e2be9a5cSTaylor Simpson g_assert(!pkt->pkt_has_dczeroa); 7481e536334STaylor Simpson process_store(ctx, 0); 7498b453a2bSTaylor Simpson } 7508b453a2bSTaylor Simpson } 7518b453a2bSTaylor Simpson 7528b453a2bSTaylor Simpson /* Zero out a 32-bit cache line */ 7531e536334STaylor Simpson static void process_dczeroa(DisasContext *ctx) 7548b453a2bSTaylor Simpson { 7551e536334STaylor Simpson if (ctx->pkt->pkt_has_dczeroa) { 7568b453a2bSTaylor Simpson /* Store 32 bytes of zero starting at (addr & ~0x1f) */ 7578b453a2bSTaylor Simpson TCGv addr = tcg_temp_new(); 75823803bbeSPhilippe Mathieu-Daudé TCGv_i64 zero = tcg_constant_i64(0); 7598b453a2bSTaylor Simpson 7600fc56c43STaylor Simpson tcg_gen_andi_tl(addr, ctx->dczero_addr, ~0x1f); 76153b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 7628b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 76353b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 7648b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 76553b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 7668b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 76753b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 7688b453a2bSTaylor Simpson } 7698b453a2bSTaylor Simpson } 7708b453a2bSTaylor Simpson 771a82dd548STaylor Simpson static bool pkt_has_hvx_store(Packet *pkt) 772a82dd548STaylor Simpson { 773a82dd548STaylor Simpson int i; 774a82dd548STaylor Simpson for (i = 0; i < pkt->num_insns; i++) { 775a82dd548STaylor Simpson int opcode = pkt->insn[i].opcode; 776a82dd548STaylor Simpson if (GET_ATTRIB(opcode, A_CVI) && GET_ATTRIB(opcode, A_STORE)) { 777a82dd548STaylor Simpson return true; 778a82dd548STaylor Simpson } 779a82dd548STaylor Simpson } 780a82dd548STaylor Simpson return false; 781a82dd548STaylor Simpson } 782a82dd548STaylor Simpson 7831e536334STaylor Simpson static void gen_commit_hvx(DisasContext *ctx) 784a82dd548STaylor Simpson { 785a82dd548STaylor Simpson int i; 786a82dd548STaylor Simpson 787b8552985STaylor Simpson /* Early exit if not needed */ 788b8552985STaylor Simpson if (!ctx->need_commit) { 789b8552985STaylor Simpson g_assert(!pkt_has_hvx_store(ctx->pkt)); 790b8552985STaylor Simpson return; 791b8552985STaylor Simpson } 792b8552985STaylor Simpson 793a82dd548STaylor Simpson /* 794a82dd548STaylor Simpson * for (i = 0; i < ctx->vreg_log_idx; i++) { 795a82dd548STaylor Simpson * int rnum = ctx->vreg_log[i]; 796a82dd548STaylor Simpson * env->VRegs[rnum] = env->future_VRegs[rnum]; 797a82dd548STaylor Simpson * } 798a82dd548STaylor Simpson */ 799a82dd548STaylor Simpson for (i = 0; i < ctx->vreg_log_idx; i++) { 800a82dd548STaylor Simpson int rnum = ctx->vreg_log[i]; 801a82dd548STaylor Simpson intptr_t dstoff = offsetof(CPUHexagonState, VRegs[rnum]); 802a82dd548STaylor Simpson intptr_t srcoff = ctx_future_vreg_off(ctx, rnum, 1, false); 803a82dd548STaylor Simpson size_t size = sizeof(MMVector); 804a82dd548STaylor Simpson 805a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 806a82dd548STaylor Simpson } 807a82dd548STaylor Simpson 808a82dd548STaylor Simpson /* 809a82dd548STaylor Simpson * for (i = 0; i < ctx->qreg_log_idx; i++) { 810a82dd548STaylor Simpson * int rnum = ctx->qreg_log[i]; 811a82dd548STaylor Simpson * env->QRegs[rnum] = env->future_QRegs[rnum]; 812a82dd548STaylor Simpson * } 813a82dd548STaylor Simpson */ 814a82dd548STaylor Simpson for (i = 0; i < ctx->qreg_log_idx; i++) { 815a82dd548STaylor Simpson int rnum = ctx->qreg_log[i]; 816a82dd548STaylor Simpson intptr_t dstoff = offsetof(CPUHexagonState, QRegs[rnum]); 817a82dd548STaylor Simpson intptr_t srcoff = offsetof(CPUHexagonState, future_QRegs[rnum]); 818a82dd548STaylor Simpson size_t size = sizeof(MMQReg); 819a82dd548STaylor Simpson 820a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 821a82dd548STaylor Simpson } 822a82dd548STaylor Simpson 8231e536334STaylor Simpson if (pkt_has_hvx_store(ctx->pkt)) { 824ad75a51eSRichard Henderson gen_helper_commit_hvx_stores(tcg_env); 825a82dd548STaylor Simpson } 826a82dd548STaylor Simpson } 827a82dd548STaylor Simpson 8281e536334STaylor Simpson static void update_exec_counters(DisasContext *ctx) 8298b453a2bSTaylor Simpson { 8301e536334STaylor Simpson Packet *pkt = ctx->pkt; 8318b453a2bSTaylor Simpson int num_insns = pkt->num_insns; 8328b453a2bSTaylor Simpson int num_real_insns = 0; 833a82dd548STaylor Simpson int num_hvx_insns = 0; 8348b453a2bSTaylor Simpson 8358b453a2bSTaylor Simpson for (int i = 0; i < num_insns; i++) { 8368b453a2bSTaylor Simpson if (!pkt->insn[i].is_endloop && 8378b453a2bSTaylor Simpson !pkt->insn[i].part1 && 8388b453a2bSTaylor Simpson !GET_ATTRIB(pkt->insn[i].opcode, A_IT_NOP)) { 8398b453a2bSTaylor Simpson num_real_insns++; 8408b453a2bSTaylor Simpson } 841a82dd548STaylor Simpson if (GET_ATTRIB(pkt->insn[i].opcode, A_CVI)) { 842a82dd548STaylor Simpson num_hvx_insns++; 843a82dd548STaylor Simpson } 8448b453a2bSTaylor Simpson } 8458b453a2bSTaylor Simpson 8468b453a2bSTaylor Simpson ctx->num_packets++; 8478b453a2bSTaylor Simpson ctx->num_insns += num_real_insns; 848a82dd548STaylor Simpson ctx->num_hvx_insns += num_hvx_insns; 8498b453a2bSTaylor Simpson } 8508b453a2bSTaylor Simpson 8511e536334STaylor Simpson static void gen_commit_packet(DisasContext *ctx) 8528b453a2bSTaylor Simpson { 853c23b5764STaylor Simpson /* 854c23b5764STaylor Simpson * If there is more than one store in a packet, make sure they are all OK 855c23b5764STaylor Simpson * before proceeding with the rest of the packet commit. 856c23b5764STaylor Simpson * 857c23b5764STaylor Simpson * dczeroa has to be the only store operation in the packet, so we go 858c23b5764STaylor Simpson * ahead and process that first. 859c23b5764STaylor Simpson * 860a82dd548STaylor Simpson * When there is an HVX store, there can also be a scalar store in either 861a82dd548STaylor Simpson * slot 0 or slot1, so we create a mask for the helper to indicate what 862a82dd548STaylor Simpson * work to do. 863a82dd548STaylor Simpson * 864c23b5764STaylor Simpson * When there are two scalar stores, we probe the one in slot 0. 865c23b5764STaylor Simpson * 866c23b5764STaylor Simpson * Note that we don't call the probe helper for packets with only one 867c23b5764STaylor Simpson * store. Therefore, we call process_store_log before anything else 868c23b5764STaylor Simpson * involved in committing the packet. 869c23b5764STaylor Simpson */ 8701e536334STaylor Simpson Packet *pkt = ctx->pkt; 871c23b5764STaylor Simpson bool has_store_s0 = pkt->pkt_has_store_s0; 872c23b5764STaylor Simpson bool has_store_s1 = (pkt->pkt_has_store_s1 && !ctx->s1_store_processed); 873a82dd548STaylor Simpson bool has_hvx_store = pkt_has_hvx_store(pkt); 874c23b5764STaylor Simpson if (pkt->pkt_has_dczeroa) { 875c23b5764STaylor Simpson /* 876c23b5764STaylor Simpson * The dczeroa will be the store in slot 0, check that we don't have 877a82dd548STaylor Simpson * a store in slot 1 or an HVX store. 878c23b5764STaylor Simpson */ 879e2be9a5cSTaylor Simpson g_assert(!has_store_s1 && !has_hvx_store); 8801e536334STaylor Simpson process_dczeroa(ctx); 881a82dd548STaylor Simpson } else if (has_hvx_store) { 882a82dd548STaylor Simpson if (!has_store_s0 && !has_store_s1) { 8832bda44e8STaylor Simpson TCGv mem_idx = tcg_constant_tl(ctx->mem_idx); 884ad75a51eSRichard Henderson gen_helper_probe_hvx_stores(tcg_env, mem_idx); 885a82dd548STaylor Simpson } else { 886a82dd548STaylor Simpson int mask = 0; 887a82dd548STaylor Simpson 888a82dd548STaylor Simpson if (has_store_s0) { 8897b84fd04STaylor Simpson mask = 8907b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, HAS_ST0, 1); 891a82dd548STaylor Simpson } 892a82dd548STaylor Simpson if (has_store_s1) { 8937b84fd04STaylor Simpson mask = 8947b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, HAS_ST1, 1); 895a82dd548STaylor Simpson } 896a82dd548STaylor Simpson if (has_hvx_store) { 8977b84fd04STaylor Simpson mask = 8987b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, 8997b84fd04STaylor Simpson HAS_HVX_STORES, 1); 9007b84fd04STaylor Simpson } 9017b84fd04STaylor Simpson if (has_store_s0 && slot_is_predicated(pkt, 0)) { 9027b84fd04STaylor Simpson mask = 9037b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, 9047b84fd04STaylor Simpson S0_IS_PRED, 1); 9057b84fd04STaylor Simpson } 9067b84fd04STaylor Simpson if (has_store_s1 && slot_is_predicated(pkt, 1)) { 9077b84fd04STaylor Simpson mask = 9087b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, 9097b84fd04STaylor Simpson S1_IS_PRED, 1); 910a82dd548STaylor Simpson } 9112bda44e8STaylor Simpson mask = FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, MMU_IDX, 9122bda44e8STaylor Simpson ctx->mem_idx); 913ad75a51eSRichard Henderson gen_helper_probe_pkt_scalar_hvx_stores(tcg_env, 9142bda44e8STaylor Simpson tcg_constant_tl(mask)); 915a82dd548STaylor Simpson } 916c23b5764STaylor Simpson } else if (has_store_s0 && has_store_s1) { 917c23b5764STaylor Simpson /* 918c23b5764STaylor Simpson * process_store_log will execute the slot 1 store first, 919c23b5764STaylor Simpson * so we only have to probe the store in slot 0 920c23b5764STaylor Simpson */ 9217b84fd04STaylor Simpson int args = 0; 9227b84fd04STaylor Simpson args = 9237b84fd04STaylor Simpson FIELD_DP32(args, PROBE_PKT_SCALAR_STORE_S0, MMU_IDX, ctx->mem_idx); 9247b84fd04STaylor Simpson if (slot_is_predicated(pkt, 0)) { 9257b84fd04STaylor Simpson args = 9267b84fd04STaylor Simpson FIELD_DP32(args, PROBE_PKT_SCALAR_STORE_S0, IS_PREDICATED, 1); 9277b84fd04STaylor Simpson } 9287b84fd04STaylor Simpson TCGv args_tcgv = tcg_constant_tl(args); 929ad75a51eSRichard Henderson gen_helper_probe_pkt_scalar_store_s0(tcg_env, args_tcgv); 930c23b5764STaylor Simpson } 931c23b5764STaylor Simpson 9321e536334STaylor Simpson process_store_log(ctx); 933c23b5764STaylor Simpson 9348b453a2bSTaylor Simpson gen_reg_writes(ctx); 9351e536334STaylor Simpson gen_pred_writes(ctx); 936a82dd548STaylor Simpson if (pkt->pkt_has_hvx) { 9371e536334STaylor Simpson gen_commit_hvx(ctx); 938a82dd548STaylor Simpson } 9391e536334STaylor Simpson update_exec_counters(ctx); 94085580a65STaylor Simpson if (HEX_DEBUG) { 9418b453a2bSTaylor Simpson TCGv has_st0 = 94223803bbeSPhilippe Mathieu-Daudé tcg_constant_tl(pkt->pkt_has_store_s0 && !pkt->pkt_has_dczeroa); 9438b453a2bSTaylor Simpson TCGv has_st1 = 94423803bbeSPhilippe Mathieu-Daudé tcg_constant_tl(pkt->pkt_has_store_s1 && !pkt->pkt_has_dczeroa); 9458b453a2bSTaylor Simpson 9468b453a2bSTaylor Simpson /* Handy place to set a breakpoint at the end of execution */ 947ad75a51eSRichard Henderson gen_helper_debug_commit_end(tcg_env, tcg_constant_tl(ctx->pkt->pc), 9480fc56c43STaylor Simpson ctx->pred_written, has_st0, has_st1); 9498b453a2bSTaylor Simpson } 9508b453a2bSTaylor Simpson 951a82dd548STaylor Simpson if (pkt->vhist_insn != NULL) { 952a82dd548STaylor Simpson ctx->pre_commit = false; 9531e536334STaylor Simpson ctx->insn = pkt->vhist_insn; 9541e536334STaylor Simpson pkt->vhist_insn->generate(ctx); 955a82dd548STaylor Simpson } 956a82dd548STaylor Simpson 9578b453a2bSTaylor Simpson if (pkt->pkt_has_cof) { 958743debbcSTaylor Simpson gen_end_tb(ctx); 9598b453a2bSTaylor Simpson } 9608b453a2bSTaylor Simpson } 9618b453a2bSTaylor Simpson 9628b453a2bSTaylor Simpson static void decode_and_translate_packet(CPUHexagonState *env, DisasContext *ctx) 9638b453a2bSTaylor Simpson { 9648b453a2bSTaylor Simpson uint32_t words[PACKET_WORDS_MAX]; 9658b453a2bSTaylor Simpson int nwords; 9668b453a2bSTaylor Simpson Packet pkt; 9678b453a2bSTaylor Simpson int i; 9688b453a2bSTaylor Simpson 9698b453a2bSTaylor Simpson nwords = read_packet_words(env, ctx, words); 9708b453a2bSTaylor Simpson if (!nwords) { 971743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_PACKET); 9728b453a2bSTaylor Simpson return; 9738b453a2bSTaylor Simpson } 9748b453a2bSTaylor Simpson 9751547a2d3STaylor Simpson ctx->pkt = &pkt; 9761547a2d3STaylor Simpson if (decode_packet(ctx, nwords, words, &pkt, false) > 0) { 97740085901STaylor Simpson pkt.pc = ctx->base.pc_next; 9788b453a2bSTaylor Simpson HEX_DEBUG_PRINT_PKT(&pkt); 9791e536334STaylor Simpson gen_start_packet(ctx); 9808b453a2bSTaylor Simpson for (i = 0; i < pkt.num_insns; i++) { 9811e536334STaylor Simpson ctx->insn = &pkt.insn[i]; 9821e536334STaylor Simpson gen_insn(ctx); 9838b453a2bSTaylor Simpson } 9841e536334STaylor Simpson gen_commit_packet(ctx); 9858b453a2bSTaylor Simpson ctx->base.pc_next += pkt.encod_pkt_size_in_bytes; 9868b453a2bSTaylor Simpson } else { 987743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_PACKET); 9888b453a2bSTaylor Simpson } 9898b453a2bSTaylor Simpson } 9908b453a2bSTaylor Simpson 9918b453a2bSTaylor Simpson static void hexagon_tr_init_disas_context(DisasContextBase *dcbase, 9928b453a2bSTaylor Simpson CPUState *cs) 9938b453a2bSTaylor Simpson { 9948b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 995b77af26eSRichard Henderson HexagonCPU *hex_cpu = env_archcpu(cpu_env(cs)); 996564b2040STaylor Simpson uint32_t hex_flags = dcbase->tb->flags; 9978b453a2bSTaylor Simpson 9988b453a2bSTaylor Simpson ctx->mem_idx = MMU_USER_IDX; 9998b453a2bSTaylor Simpson ctx->num_packets = 0; 10008b453a2bSTaylor Simpson ctx->num_insns = 0; 1001a82dd548STaylor Simpson ctx->num_hvx_insns = 0; 10021b9a7f2aSTaylor Simpson ctx->branch_cond = TCG_COND_NEVER; 1003564b2040STaylor Simpson ctx->is_tight_loop = FIELD_EX32(hex_flags, TB_FLAGS, IS_TIGHT_LOOP); 1004d54c5615STaylor Simpson ctx->short_circuit = hex_cpu->short_circuit; 10058b453a2bSTaylor Simpson } 10068b453a2bSTaylor Simpson 10078b453a2bSTaylor Simpson static void hexagon_tr_tb_start(DisasContextBase *db, CPUState *cpu) 10088b453a2bSTaylor Simpson { 10098b453a2bSTaylor Simpson } 10108b453a2bSTaylor Simpson 10118b453a2bSTaylor Simpson static void hexagon_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) 10128b453a2bSTaylor Simpson { 10138b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 10148b453a2bSTaylor Simpson 10158b453a2bSTaylor Simpson tcg_gen_insn_start(ctx->base.pc_next); 10168b453a2bSTaylor Simpson } 10178b453a2bSTaylor Simpson 10188b453a2bSTaylor Simpson static bool pkt_crosses_page(CPUHexagonState *env, DisasContext *ctx) 10198b453a2bSTaylor Simpson { 10208b453a2bSTaylor Simpson target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK; 10218b453a2bSTaylor Simpson bool found_end = false; 10228b453a2bSTaylor Simpson int nwords; 10238b453a2bSTaylor Simpson 10248b453a2bSTaylor Simpson for (nwords = 0; !found_end && nwords < PACKET_WORDS_MAX; nwords++) { 10258b453a2bSTaylor Simpson uint32_t word = cpu_ldl_code(env, 10268b453a2bSTaylor Simpson ctx->base.pc_next + nwords * sizeof(uint32_t)); 10278b453a2bSTaylor Simpson found_end = is_packet_end(word); 10288b453a2bSTaylor Simpson } 10298b453a2bSTaylor Simpson uint32_t next_ptr = ctx->base.pc_next + nwords * sizeof(uint32_t); 10308b453a2bSTaylor Simpson return found_end && next_ptr - page_start >= TARGET_PAGE_SIZE; 10318b453a2bSTaylor Simpson } 10328b453a2bSTaylor Simpson 10338b453a2bSTaylor Simpson static void hexagon_tr_translate_packet(DisasContextBase *dcbase, CPUState *cpu) 10348b453a2bSTaylor Simpson { 10358b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 1036b77af26eSRichard Henderson CPUHexagonState *env = cpu_env(cpu); 10378b453a2bSTaylor Simpson 10388b453a2bSTaylor Simpson decode_and_translate_packet(env, ctx); 10398b453a2bSTaylor Simpson 10408b453a2bSTaylor Simpson if (ctx->base.is_jmp == DISAS_NEXT) { 10418b453a2bSTaylor Simpson target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK; 10428b453a2bSTaylor Simpson target_ulong bytes_max = PACKET_WORDS_MAX * sizeof(target_ulong); 10438b453a2bSTaylor Simpson 10448b453a2bSTaylor Simpson if (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE || 10458b453a2bSTaylor Simpson (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE - bytes_max && 10468b453a2bSTaylor Simpson pkt_crosses_page(env, ctx))) { 10478b453a2bSTaylor Simpson ctx->base.is_jmp = DISAS_TOO_MANY; 10488b453a2bSTaylor Simpson } 10498b453a2bSTaylor Simpson 10508b453a2bSTaylor Simpson /* 10518b453a2bSTaylor Simpson * The CPU log is used to compare against LLDB single stepping, 10528b453a2bSTaylor Simpson * so end the TLB after every packet. 10538b453a2bSTaylor Simpson */ 10547d9ab202STaylor Simpson HexagonCPU *hex_cpu = env_archcpu(env); 10558b453a2bSTaylor Simpson if (hex_cpu->lldb_compat && qemu_loglevel_mask(CPU_LOG_TB_CPU)) { 10568b453a2bSTaylor Simpson ctx->base.is_jmp = DISAS_TOO_MANY; 10578b453a2bSTaylor Simpson } 10588b453a2bSTaylor Simpson } 10598b453a2bSTaylor Simpson } 10608b453a2bSTaylor Simpson 10618b453a2bSTaylor Simpson static void hexagon_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) 10628b453a2bSTaylor Simpson { 10638b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 10648b453a2bSTaylor Simpson 10658b453a2bSTaylor Simpson switch (ctx->base.is_jmp) { 10668b453a2bSTaylor Simpson case DISAS_TOO_MANY: 10678b453a2bSTaylor Simpson gen_exec_counters(ctx); 10688b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], ctx->base.pc_next); 10698b453a2bSTaylor Simpson tcg_gen_exit_tb(NULL, 0); 10708b453a2bSTaylor Simpson break; 10718b453a2bSTaylor Simpson case DISAS_NORETURN: 10728b453a2bSTaylor Simpson break; 10738b453a2bSTaylor Simpson default: 10748b453a2bSTaylor Simpson g_assert_not_reached(); 10758b453a2bSTaylor Simpson } 10768b453a2bSTaylor Simpson } 10778b453a2bSTaylor Simpson 10788eb806a7SRichard Henderson static void hexagon_tr_disas_log(const DisasContextBase *dcbase, 10798eb806a7SRichard Henderson CPUState *cpu, FILE *logfile) 10808b453a2bSTaylor Simpson { 10818eb806a7SRichard Henderson fprintf(logfile, "IN: %s\n", lookup_symbol(dcbase->pc_first)); 10828eb806a7SRichard Henderson target_disas(logfile, cpu, dcbase->pc_first, dcbase->tb->size); 10838b453a2bSTaylor Simpson } 10848b453a2bSTaylor Simpson 10858b453a2bSTaylor Simpson 10868b453a2bSTaylor Simpson static const TranslatorOps hexagon_tr_ops = { 10878b453a2bSTaylor Simpson .init_disas_context = hexagon_tr_init_disas_context, 10888b453a2bSTaylor Simpson .tb_start = hexagon_tr_tb_start, 10898b453a2bSTaylor Simpson .insn_start = hexagon_tr_insn_start, 10908b453a2bSTaylor Simpson .translate_insn = hexagon_tr_translate_packet, 10918b453a2bSTaylor Simpson .tb_stop = hexagon_tr_tb_stop, 10928b453a2bSTaylor Simpson .disas_log = hexagon_tr_disas_log, 10938b453a2bSTaylor Simpson }; 10948b453a2bSTaylor Simpson 1095597f9b2dSRichard Henderson void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, 109632f0c394SAnton Johansson vaddr pc, void *host_pc) 10978b453a2bSTaylor Simpson { 10988b453a2bSTaylor Simpson DisasContext ctx; 10998b453a2bSTaylor Simpson 1100306c8721SRichard Henderson translator_loop(cs, tb, max_insns, pc, host_pc, 1101306c8721SRichard Henderson &hexagon_tr_ops, &ctx.base); 11028b453a2bSTaylor Simpson } 11038b453a2bSTaylor Simpson 11048b453a2bSTaylor Simpson #define NAME_LEN 64 11058b453a2bSTaylor Simpson static char reg_written_names[TOTAL_PER_THREAD_REGS][NAME_LEN]; 11068b453a2bSTaylor Simpson static char store_addr_names[STORES_MAX][NAME_LEN]; 11078b453a2bSTaylor Simpson static char store_width_names[STORES_MAX][NAME_LEN]; 11088b453a2bSTaylor Simpson static char store_val32_names[STORES_MAX][NAME_LEN]; 11098b453a2bSTaylor Simpson static char store_val64_names[STORES_MAX][NAME_LEN]; 1110a82dd548STaylor Simpson static char vstore_addr_names[VSTORES_MAX][NAME_LEN]; 1111a82dd548STaylor Simpson static char vstore_size_names[VSTORES_MAX][NAME_LEN]; 1112a82dd548STaylor Simpson static char vstore_pending_names[VSTORES_MAX][NAME_LEN]; 11138b453a2bSTaylor Simpson 11148b453a2bSTaylor Simpson void hexagon_translate_init(void) 11158b453a2bSTaylor Simpson { 11168b453a2bSTaylor Simpson int i; 11178b453a2bSTaylor Simpson 11188b453a2bSTaylor Simpson opcode_init(); 11198b453a2bSTaylor Simpson 11208b453a2bSTaylor Simpson for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) { 1121ad75a51eSRichard Henderson hex_gpr[i] = tcg_global_mem_new(tcg_env, 11228b453a2bSTaylor Simpson offsetof(CPUHexagonState, gpr[i]), 11238b453a2bSTaylor Simpson hexagon_regnames[i]); 11248b453a2bSTaylor Simpson 112585580a65STaylor Simpson if (HEX_DEBUG) { 11268b453a2bSTaylor Simpson snprintf(reg_written_names[i], NAME_LEN, "reg_written_%s", 11278b453a2bSTaylor Simpson hexagon_regnames[i]); 1128ad75a51eSRichard Henderson hex_reg_written[i] = tcg_global_mem_new(tcg_env, 11298b453a2bSTaylor Simpson offsetof(CPUHexagonState, reg_written[i]), 11308b453a2bSTaylor Simpson reg_written_names[i]); 113185580a65STaylor Simpson } 11328b453a2bSTaylor Simpson } 1133ad75a51eSRichard Henderson hex_new_value_usr = tcg_global_mem_new(tcg_env, 11346aa4f1d1STaylor Simpson offsetof(CPUHexagonState, new_value_usr), "new_value_usr"); 11356aa4f1d1STaylor Simpson 11368b453a2bSTaylor Simpson for (i = 0; i < NUM_PREGS; i++) { 1137ad75a51eSRichard Henderson hex_pred[i] = tcg_global_mem_new(tcg_env, 11388b453a2bSTaylor Simpson offsetof(CPUHexagonState, pred[i]), 11398b453a2bSTaylor Simpson hexagon_prednames[i]); 11408b453a2bSTaylor Simpson } 1141ad75a51eSRichard Henderson hex_slot_cancelled = tcg_global_mem_new(tcg_env, 11428b453a2bSTaylor Simpson offsetof(CPUHexagonState, slot_cancelled), "slot_cancelled"); 1143ad75a51eSRichard Henderson hex_llsc_addr = tcg_global_mem_new(tcg_env, 11448b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_addr), "llsc_addr"); 1145ad75a51eSRichard Henderson hex_llsc_val = tcg_global_mem_new(tcg_env, 11468b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_val), "llsc_val"); 1147ad75a51eSRichard Henderson hex_llsc_val_i64 = tcg_global_mem_new_i64(tcg_env, 11488b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_val_i64), "llsc_val_i64"); 11498b453a2bSTaylor Simpson for (i = 0; i < STORES_MAX; i++) { 11508b453a2bSTaylor Simpson snprintf(store_addr_names[i], NAME_LEN, "store_addr_%d", i); 1151ad75a51eSRichard Henderson hex_store_addr[i] = tcg_global_mem_new(tcg_env, 11528b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].va), 11538b453a2bSTaylor Simpson store_addr_names[i]); 11548b453a2bSTaylor Simpson 11558b453a2bSTaylor Simpson snprintf(store_width_names[i], NAME_LEN, "store_width_%d", i); 1156ad75a51eSRichard Henderson hex_store_width[i] = tcg_global_mem_new(tcg_env, 11578b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].width), 11588b453a2bSTaylor Simpson store_width_names[i]); 11598b453a2bSTaylor Simpson 11608b453a2bSTaylor Simpson snprintf(store_val32_names[i], NAME_LEN, "store_val32_%d", i); 1161ad75a51eSRichard Henderson hex_store_val32[i] = tcg_global_mem_new(tcg_env, 11628b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].data32), 11638b453a2bSTaylor Simpson store_val32_names[i]); 11648b453a2bSTaylor Simpson 11658b453a2bSTaylor Simpson snprintf(store_val64_names[i], NAME_LEN, "store_val64_%d", i); 1166ad75a51eSRichard Henderson hex_store_val64[i] = tcg_global_mem_new_i64(tcg_env, 11678b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].data64), 11688b453a2bSTaylor Simpson store_val64_names[i]); 11698b453a2bSTaylor Simpson } 117020c34a92SBrian Cain for (i = 0; i < VSTORES_MAX; i++) { 1171a82dd548STaylor Simpson snprintf(vstore_addr_names[i], NAME_LEN, "vstore_addr_%d", i); 1172ad75a51eSRichard Henderson hex_vstore_addr[i] = tcg_global_mem_new(tcg_env, 1173a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore[i].va), 1174a82dd548STaylor Simpson vstore_addr_names[i]); 1175a82dd548STaylor Simpson 1176a82dd548STaylor Simpson snprintf(vstore_size_names[i], NAME_LEN, "vstore_size_%d", i); 1177ad75a51eSRichard Henderson hex_vstore_size[i] = tcg_global_mem_new(tcg_env, 1178a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore[i].size), 1179a82dd548STaylor Simpson vstore_size_names[i]); 1180a82dd548STaylor Simpson 1181a82dd548STaylor Simpson snprintf(vstore_pending_names[i], NAME_LEN, "vstore_pending_%d", i); 1182ad75a51eSRichard Henderson hex_vstore_pending[i] = tcg_global_mem_new(tcg_env, 1183a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore_pending[i]), 1184a82dd548STaylor Simpson vstore_pending_names[i]); 1185a82dd548STaylor Simpson } 11868b453a2bSTaylor Simpson } 1187