18b453a2bSTaylor Simpson /* 210849c26STaylor Simpson * Copyright(c) 2019-2023 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" 268b453a2bSTaylor Simpson #include "exec/log.h" 278b453a2bSTaylor Simpson #include "internal.h" 288b453a2bSTaylor Simpson #include "attribs.h" 298b453a2bSTaylor Simpson #include "insn.h" 308b453a2bSTaylor Simpson #include "decode.h" 318b453a2bSTaylor Simpson #include "translate.h" 32d54c5615STaylor Simpson #include "genptr.h" 338b453a2bSTaylor Simpson #include "printinsn.h" 348b453a2bSTaylor Simpson 35d53106c9SRichard Henderson #define HELPER_H "helper.h" 36d53106c9SRichard Henderson #include "exec/helper-info.c.inc" 37d53106c9SRichard Henderson #undef HELPER_H 38d53106c9SRichard Henderson 3910849c26STaylor Simpson #include "analyze_funcs_generated.c.inc" 4010849c26STaylor Simpson 4110849c26STaylor Simpson typedef void (*AnalyzeInsn)(DisasContext *ctx); 4210849c26STaylor Simpson static const AnalyzeInsn opcode_analyze[XX_LAST_OPCODE] = { 4310849c26STaylor Simpson #define OPCODE(X) [X] = analyze_##X 4410849c26STaylor Simpson #include "opcodes_def_generated.h.inc" 4510849c26STaylor Simpson #undef OPCODE 4610849c26STaylor Simpson }; 4710849c26STaylor Simpson 488b453a2bSTaylor Simpson TCGv hex_gpr[TOTAL_PER_THREAD_REGS]; 498b453a2bSTaylor Simpson TCGv hex_pred[NUM_PREGS]; 508b453a2bSTaylor Simpson TCGv hex_slot_cancelled; 516aa4f1d1STaylor Simpson TCGv hex_new_value_usr; 528b453a2bSTaylor Simpson TCGv hex_reg_written[TOTAL_PER_THREAD_REGS]; 538b453a2bSTaylor Simpson TCGv hex_store_addr[STORES_MAX]; 548b453a2bSTaylor Simpson TCGv hex_store_width[STORES_MAX]; 558b453a2bSTaylor Simpson TCGv hex_store_val32[STORES_MAX]; 568b453a2bSTaylor Simpson TCGv_i64 hex_store_val64[STORES_MAX]; 578b453a2bSTaylor Simpson TCGv hex_llsc_addr; 588b453a2bSTaylor Simpson TCGv hex_llsc_val; 598b453a2bSTaylor Simpson TCGv_i64 hex_llsc_val_i64; 60a82dd548STaylor Simpson TCGv hex_vstore_addr[VSTORES_MAX]; 61a82dd548STaylor Simpson TCGv hex_vstore_size[VSTORES_MAX]; 62a82dd548STaylor Simpson TCGv hex_vstore_pending[VSTORES_MAX]; 638b453a2bSTaylor Simpson 648b453a2bSTaylor Simpson static const char * const hexagon_prednames[] = { 658b453a2bSTaylor Simpson "p0", "p1", "p2", "p3" 668b453a2bSTaylor Simpson }; 678b453a2bSTaylor Simpson 68a82dd548STaylor Simpson intptr_t ctx_future_vreg_off(DisasContext *ctx, int regnum, 69a82dd548STaylor Simpson int num, bool alloc_ok) 70a82dd548STaylor Simpson { 71a82dd548STaylor Simpson intptr_t offset; 72a82dd548STaylor Simpson 73b8552985STaylor Simpson if (!ctx->need_commit) { 74b8552985STaylor Simpson return offsetof(CPUHexagonState, VRegs[regnum]); 75b8552985STaylor Simpson } 76b8552985STaylor Simpson 77a82dd548STaylor Simpson /* See if it is already allocated */ 78a82dd548STaylor Simpson for (int i = 0; i < ctx->future_vregs_idx; i++) { 79a82dd548STaylor Simpson if (ctx->future_vregs_num[i] == regnum) { 80a82dd548STaylor Simpson return offsetof(CPUHexagonState, future_VRegs[i]); 81a82dd548STaylor Simpson } 82a82dd548STaylor Simpson } 83a82dd548STaylor Simpson 84a82dd548STaylor Simpson g_assert(alloc_ok); 85a82dd548STaylor Simpson offset = offsetof(CPUHexagonState, future_VRegs[ctx->future_vregs_idx]); 86a82dd548STaylor Simpson for (int i = 0; i < num; i++) { 87a82dd548STaylor Simpson ctx->future_vregs_num[ctx->future_vregs_idx + i] = regnum++; 88a82dd548STaylor Simpson } 89a82dd548STaylor Simpson ctx->future_vregs_idx += num; 90a82dd548STaylor Simpson g_assert(ctx->future_vregs_idx <= VECTOR_TEMPS_MAX); 91a82dd548STaylor Simpson return offset; 92a82dd548STaylor Simpson } 93a82dd548STaylor Simpson 94a82dd548STaylor Simpson intptr_t ctx_tmp_vreg_off(DisasContext *ctx, int regnum, 95a82dd548STaylor Simpson int num, bool alloc_ok) 96a82dd548STaylor Simpson { 97a82dd548STaylor Simpson intptr_t offset; 98a82dd548STaylor Simpson 99a82dd548STaylor Simpson /* See if it is already allocated */ 100a82dd548STaylor Simpson for (int i = 0; i < ctx->tmp_vregs_idx; i++) { 101a82dd548STaylor Simpson if (ctx->tmp_vregs_num[i] == regnum) { 102a82dd548STaylor Simpson return offsetof(CPUHexagonState, tmp_VRegs[i]); 103a82dd548STaylor Simpson } 104a82dd548STaylor Simpson } 105a82dd548STaylor Simpson 106a82dd548STaylor Simpson g_assert(alloc_ok); 107a82dd548STaylor Simpson offset = offsetof(CPUHexagonState, tmp_VRegs[ctx->tmp_vregs_idx]); 108a82dd548STaylor Simpson for (int i = 0; i < num; i++) { 109a82dd548STaylor Simpson ctx->tmp_vregs_num[ctx->tmp_vregs_idx + i] = regnum++; 110a82dd548STaylor Simpson } 111a82dd548STaylor Simpson ctx->tmp_vregs_idx += num; 112a82dd548STaylor Simpson g_assert(ctx->tmp_vregs_idx <= VECTOR_TEMPS_MAX); 113a82dd548STaylor Simpson return offset; 114a82dd548STaylor Simpson } 115a82dd548STaylor Simpson 116743debbcSTaylor Simpson static void gen_exception_raw(int excp) 1178b453a2bSTaylor Simpson { 118ad75a51eSRichard Henderson gen_helper_raise_exception(tcg_env, tcg_constant_i32(excp)); 1198b453a2bSTaylor Simpson } 1208b453a2bSTaylor Simpson 121743debbcSTaylor Simpson static void gen_exec_counters(DisasContext *ctx) 1228b453a2bSTaylor Simpson { 123743debbcSTaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_PKT_CNT], 124743debbcSTaylor Simpson hex_gpr[HEX_REG_QEMU_PKT_CNT], ctx->num_packets); 125743debbcSTaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_INSN_CNT], 126743debbcSTaylor Simpson hex_gpr[HEX_REG_QEMU_INSN_CNT], ctx->num_insns); 127a82dd548STaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_HVX_CNT], 128a82dd548STaylor Simpson hex_gpr[HEX_REG_QEMU_HVX_CNT], ctx->num_hvx_insns); 129743debbcSTaylor Simpson } 130743debbcSTaylor Simpson 1311b9a7f2aSTaylor Simpson static bool use_goto_tb(DisasContext *ctx, target_ulong dest) 1321b9a7f2aSTaylor Simpson { 1331b9a7f2aSTaylor Simpson return translator_use_goto_tb(&ctx->base, dest); 1341b9a7f2aSTaylor Simpson } 1351b9a7f2aSTaylor Simpson 136bee1fc56SMatheus Tavares Bernardino static void gen_goto_tb(DisasContext *ctx, int idx, target_ulong dest, bool 137bee1fc56SMatheus Tavares Bernardino move_to_pc) 1381b9a7f2aSTaylor Simpson { 1391b9a7f2aSTaylor Simpson if (use_goto_tb(ctx, dest)) { 1401b9a7f2aSTaylor Simpson tcg_gen_goto_tb(idx); 141bee1fc56SMatheus Tavares Bernardino if (move_to_pc) { 1421b9a7f2aSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], dest); 143bee1fc56SMatheus Tavares Bernardino } 1441b9a7f2aSTaylor Simpson tcg_gen_exit_tb(ctx->base.tb, idx); 1451b9a7f2aSTaylor Simpson } else { 146bee1fc56SMatheus Tavares Bernardino if (move_to_pc) { 1471b9a7f2aSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], dest); 148bee1fc56SMatheus Tavares Bernardino } 1491b9a7f2aSTaylor Simpson tcg_gen_lookup_and_goto_ptr(); 1501b9a7f2aSTaylor Simpson } 1511b9a7f2aSTaylor Simpson } 1521b9a7f2aSTaylor Simpson 153743debbcSTaylor Simpson static void gen_end_tb(DisasContext *ctx) 154743debbcSTaylor Simpson { 155564b2040STaylor Simpson Packet *pkt = ctx->pkt; 156564b2040STaylor Simpson 157743debbcSTaylor Simpson gen_exec_counters(ctx); 1581b9a7f2aSTaylor Simpson 1591b9a7f2aSTaylor Simpson if (ctx->branch_cond != TCG_COND_NEVER) { 1601b9a7f2aSTaylor Simpson if (ctx->branch_cond != TCG_COND_ALWAYS) { 1611b9a7f2aSTaylor Simpson TCGLabel *skip = gen_new_label(); 1620fc56c43STaylor Simpson tcg_gen_brcondi_tl(ctx->branch_cond, ctx->branch_taken, 0, skip); 163bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 0, ctx->branch_dest, true); 1641b9a7f2aSTaylor Simpson gen_set_label(skip); 165bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 1, ctx->next_PC, false); 1661b9a7f2aSTaylor Simpson } else { 167bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 0, ctx->branch_dest, true); 1681b9a7f2aSTaylor Simpson } 169564b2040STaylor Simpson } else if (ctx->is_tight_loop && 170564b2040STaylor Simpson pkt->insn[pkt->num_insns - 1].opcode == J2_endloop0) { 171564b2040STaylor Simpson /* 172564b2040STaylor Simpson * When we're in a tight loop, we defer the endloop0 processing 173564b2040STaylor Simpson * to take advantage of direct block chaining 174564b2040STaylor Simpson */ 175564b2040STaylor Simpson TCGLabel *skip = gen_new_label(); 176564b2040STaylor Simpson tcg_gen_brcondi_tl(TCG_COND_LEU, hex_gpr[HEX_REG_LC0], 1, skip); 177564b2040STaylor Simpson tcg_gen_subi_tl(hex_gpr[HEX_REG_LC0], hex_gpr[HEX_REG_LC0], 1); 178bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 0, ctx->base.tb->pc, true); 179564b2040STaylor Simpson gen_set_label(skip); 180bee1fc56SMatheus Tavares Bernardino gen_goto_tb(ctx, 1, ctx->next_PC, false); 1811b9a7f2aSTaylor Simpson } else { 1821b9a7f2aSTaylor Simpson tcg_gen_lookup_and_goto_ptr(); 1831b9a7f2aSTaylor Simpson } 1841b9a7f2aSTaylor Simpson 185743debbcSTaylor Simpson ctx->base.is_jmp = DISAS_NORETURN; 186743debbcSTaylor Simpson } 187743debbcSTaylor Simpson 188743debbcSTaylor Simpson static void gen_exception_end_tb(DisasContext *ctx, int excp) 189743debbcSTaylor Simpson { 190743debbcSTaylor Simpson gen_exec_counters(ctx); 191613653e5STaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], ctx->next_PC); 192743debbcSTaylor Simpson gen_exception_raw(excp); 193743debbcSTaylor Simpson ctx->base.is_jmp = DISAS_NORETURN; 194743debbcSTaylor Simpson 1958b453a2bSTaylor Simpson } 1968b453a2bSTaylor Simpson 1978b453a2bSTaylor Simpson #define PACKET_BUFFER_LEN 1028 1988b453a2bSTaylor Simpson static void print_pkt(Packet *pkt) 1998b453a2bSTaylor Simpson { 2008b453a2bSTaylor Simpson GString *buf = g_string_sized_new(PACKET_BUFFER_LEN); 2018b453a2bSTaylor Simpson snprint_a_pkt_debug(buf, pkt); 2028b453a2bSTaylor Simpson HEX_DEBUG_LOG("%s", buf->str); 2038b453a2bSTaylor Simpson g_string_free(buf, true); 2048b453a2bSTaylor Simpson } 20585580a65STaylor Simpson #define HEX_DEBUG_PRINT_PKT(pkt) \ 20685580a65STaylor Simpson do { \ 20785580a65STaylor Simpson if (HEX_DEBUG) { \ 20885580a65STaylor Simpson print_pkt(pkt); \ 20985580a65STaylor Simpson } \ 21085580a65STaylor Simpson } while (0) 2118b453a2bSTaylor Simpson 2128b453a2bSTaylor Simpson static int read_packet_words(CPUHexagonState *env, DisasContext *ctx, 2138b453a2bSTaylor Simpson uint32_t words[]) 2148b453a2bSTaylor Simpson { 2158b453a2bSTaylor Simpson bool found_end = false; 2168b453a2bSTaylor Simpson int nwords, max_words; 2178b453a2bSTaylor Simpson 2188b453a2bSTaylor Simpson memset(words, 0, PACKET_WORDS_MAX * sizeof(uint32_t)); 2198b453a2bSTaylor Simpson for (nwords = 0; !found_end && nwords < PACKET_WORDS_MAX; nwords++) { 220a27c100cSTaylor Simpson words[nwords] = 2214e116893SIlya Leoshkevich translator_ldl(env, &ctx->base, 2224e116893SIlya Leoshkevich ctx->base.pc_next + nwords * sizeof(uint32_t)); 2238b453a2bSTaylor Simpson found_end = is_packet_end(words[nwords]); 2248b453a2bSTaylor Simpson } 2258b453a2bSTaylor Simpson if (!found_end) { 2268b453a2bSTaylor Simpson /* Read too many words without finding the end */ 2278b453a2bSTaylor Simpson return 0; 2288b453a2bSTaylor Simpson } 2298b453a2bSTaylor Simpson 2308b453a2bSTaylor Simpson /* Check for page boundary crossing */ 2318b453a2bSTaylor Simpson max_words = -(ctx->base.pc_next | TARGET_PAGE_MASK) / sizeof(uint32_t); 2328b453a2bSTaylor Simpson if (nwords > max_words) { 2338b453a2bSTaylor Simpson /* We can only cross a page boundary at the beginning of a TB */ 2348b453a2bSTaylor Simpson g_assert(ctx->base.num_insns == 1); 2358b453a2bSTaylor Simpson } 2368b453a2bSTaylor Simpson 2378b453a2bSTaylor Simpson HEX_DEBUG_LOG("decode_packet: pc = 0x%x\n", ctx->base.pc_next); 2388b453a2bSTaylor Simpson HEX_DEBUG_LOG(" words = { "); 2398b453a2bSTaylor Simpson for (int i = 0; i < nwords; i++) { 2408b453a2bSTaylor Simpson HEX_DEBUG_LOG("0x%x, ", words[i]); 2418b453a2bSTaylor Simpson } 2428b453a2bSTaylor Simpson HEX_DEBUG_LOG("}\n"); 2438b453a2bSTaylor Simpson 2448b453a2bSTaylor Simpson return nwords; 2458b453a2bSTaylor Simpson } 2468b453a2bSTaylor Simpson 247d54c5615STaylor Simpson static bool check_for_attrib(Packet *pkt, int attrib) 2488b453a2bSTaylor Simpson { 2498b453a2bSTaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 2508b453a2bSTaylor Simpson if (GET_ATTRIB(pkt->insn[i].opcode, attrib)) { 2518b453a2bSTaylor Simpson return true; 2528b453a2bSTaylor Simpson } 2538b453a2bSTaylor Simpson } 2548b453a2bSTaylor Simpson return false; 2558b453a2bSTaylor Simpson } 2568b453a2bSTaylor Simpson 2578b453a2bSTaylor Simpson static bool need_slot_cancelled(Packet *pkt) 2588b453a2bSTaylor Simpson { 259c2b33d0bSTaylor Simpson /* We only need slot_cancelled for conditional store instructions */ 2607b84fd04STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 2617b84fd04STaylor Simpson uint16_t opcode = pkt->insn[i].opcode; 2627b84fd04STaylor Simpson if (GET_ATTRIB(opcode, A_CONDEXEC) && 263c2b33d0bSTaylor Simpson GET_ATTRIB(opcode, A_SCALAR_STORE)) { 2647b84fd04STaylor Simpson return true; 2657b84fd04STaylor Simpson } 2667b84fd04STaylor Simpson } 2677b84fd04STaylor Simpson return false; 2688b453a2bSTaylor Simpson } 2698b453a2bSTaylor Simpson 270613653e5STaylor Simpson static bool need_next_PC(DisasContext *ctx) 271613653e5STaylor Simpson { 272613653e5STaylor Simpson Packet *pkt = ctx->pkt; 273613653e5STaylor Simpson 274613653e5STaylor Simpson /* Check for conditional control flow or HW loop end */ 275613653e5STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 276613653e5STaylor Simpson uint16_t opcode = pkt->insn[i].opcode; 277613653e5STaylor Simpson if (GET_ATTRIB(opcode, A_CONDEXEC) && GET_ATTRIB(opcode, A_COF)) { 278613653e5STaylor Simpson return true; 279613653e5STaylor Simpson } 280613653e5STaylor Simpson if (GET_ATTRIB(opcode, A_HWLOOP0_END) || 281613653e5STaylor Simpson GET_ATTRIB(opcode, A_HWLOOP1_END)) { 282613653e5STaylor Simpson return true; 283613653e5STaylor Simpson } 284613653e5STaylor Simpson } 285613653e5STaylor Simpson return false; 286613653e5STaylor Simpson } 287613653e5STaylor Simpson 28810849c26STaylor Simpson /* 28910849c26STaylor Simpson * The opcode_analyze functions mark most of the writes in a packet 29010849c26STaylor Simpson * However, there are some implicit writes marked as attributes 29110849c26STaylor Simpson * of the applicable instructions. 29210849c26STaylor Simpson */ 29310849c26STaylor Simpson static void mark_implicit_reg_write(DisasContext *ctx, int attrib, int rnum) 29410849c26STaylor Simpson { 29510849c26STaylor Simpson uint16_t opcode = ctx->insn->opcode; 29610849c26STaylor Simpson if (GET_ATTRIB(opcode, attrib)) { 29710849c26STaylor Simpson /* 29810849c26STaylor Simpson * USR is used to set overflow and FP exceptions, 29910849c26STaylor Simpson * so treat it as conditional 30010849c26STaylor Simpson */ 30110849c26STaylor Simpson bool is_predicated = GET_ATTRIB(opcode, A_CONDEXEC) || 30210849c26STaylor Simpson rnum == HEX_REG_USR; 30310849c26STaylor Simpson 30410849c26STaylor Simpson /* LC0/LC1 is conditionally written by endloop instructions */ 30510849c26STaylor Simpson if ((rnum == HEX_REG_LC0 || rnum == HEX_REG_LC1) && 30610849c26STaylor Simpson (opcode == J2_endloop0 || 30710849c26STaylor Simpson opcode == J2_endloop1 || 30810849c26STaylor Simpson opcode == J2_endloop01)) { 30910849c26STaylor Simpson is_predicated = true; 31010849c26STaylor Simpson } 31110849c26STaylor Simpson 31210849c26STaylor Simpson ctx_log_reg_write(ctx, rnum, is_predicated); 31310849c26STaylor Simpson } 31410849c26STaylor Simpson } 31510849c26STaylor Simpson 31610849c26STaylor Simpson static void mark_implicit_reg_writes(DisasContext *ctx) 31710849c26STaylor Simpson { 31810849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_FP, HEX_REG_FP); 31910849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_SP, HEX_REG_SP); 32010849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_LR, HEX_REG_LR); 32110849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_LC0, HEX_REG_LC0); 32210849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_SA0, HEX_REG_SA0); 32310849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_LC1, HEX_REG_LC1); 32410849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_SA1, HEX_REG_SA1); 32510849c26STaylor Simpson mark_implicit_reg_write(ctx, A_IMPLICIT_WRITES_USR, HEX_REG_USR); 32610849c26STaylor Simpson mark_implicit_reg_write(ctx, A_FPOP, HEX_REG_USR); 32710849c26STaylor Simpson } 32810849c26STaylor Simpson 32910849c26STaylor Simpson static void mark_implicit_pred_write(DisasContext *ctx, int attrib, int pnum) 33010849c26STaylor Simpson { 33110849c26STaylor Simpson if (GET_ATTRIB(ctx->insn->opcode, attrib)) { 33210849c26STaylor Simpson ctx_log_pred_write(ctx, pnum); 33310849c26STaylor Simpson } 33410849c26STaylor Simpson } 33510849c26STaylor Simpson 33610849c26STaylor Simpson static void mark_implicit_pred_writes(DisasContext *ctx) 33710849c26STaylor Simpson { 33810849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P0, 0); 33910849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P1, 1); 34010849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P2, 2); 34110849c26STaylor Simpson mark_implicit_pred_write(ctx, A_IMPLICIT_WRITES_P3, 3); 34210849c26STaylor Simpson } 34310849c26STaylor Simpson 344d54c5615STaylor Simpson static bool pkt_raises_exception(Packet *pkt) 345d54c5615STaylor Simpson { 346d54c5615STaylor Simpson if (check_for_attrib(pkt, A_LOAD) || 347d54c5615STaylor Simpson check_for_attrib(pkt, A_STORE)) { 348d54c5615STaylor Simpson return true; 349d54c5615STaylor Simpson } 350d54c5615STaylor Simpson return false; 351d54c5615STaylor Simpson } 352d54c5615STaylor Simpson 353d54c5615STaylor Simpson static bool need_commit(DisasContext *ctx) 354d54c5615STaylor Simpson { 355d54c5615STaylor Simpson Packet *pkt = ctx->pkt; 356d54c5615STaylor Simpson 357d54c5615STaylor Simpson /* 358d54c5615STaylor Simpson * If the short-circuit property is set to false, we'll always do the commit 359d54c5615STaylor Simpson */ 360d54c5615STaylor Simpson if (!ctx->short_circuit) { 361d54c5615STaylor Simpson return true; 362d54c5615STaylor Simpson } 363d54c5615STaylor Simpson 364d54c5615STaylor Simpson if (pkt_raises_exception(pkt)) { 365d54c5615STaylor Simpson return true; 366d54c5615STaylor Simpson } 367d54c5615STaylor Simpson 368d54c5615STaylor Simpson /* Registers with immutability flags require new_value */ 369d54c5615STaylor Simpson for (int i = 0; i < ctx->reg_log_idx; i++) { 370d54c5615STaylor Simpson int rnum = ctx->reg_log[i]; 371d54c5615STaylor Simpson if (reg_immut_masks[rnum]) { 372d54c5615STaylor Simpson return true; 373d54c5615STaylor Simpson } 374d54c5615STaylor Simpson } 375d54c5615STaylor Simpson 376d54c5615STaylor Simpson /* Floating point instructions are hard-coded to use new_value */ 377d54c5615STaylor Simpson if (check_for_attrib(pkt, A_FPOP)) { 378d54c5615STaylor Simpson return true; 379d54c5615STaylor Simpson } 380d54c5615STaylor Simpson 381d05d5eebSTaylor Simpson if (pkt->num_insns == 1) { 382d05d5eebSTaylor Simpson if (pkt->pkt_has_hvx) { 383d05d5eebSTaylor Simpson /* 384d05d5eebSTaylor Simpson * The HVX instructions with generated helpers use 385d05d5eebSTaylor Simpson * pass-by-reference, so they need the read/write overlap 386d05d5eebSTaylor Simpson * check below. 387d05d5eebSTaylor Simpson * The HVX instructions with overrides are OK. 388d05d5eebSTaylor Simpson */ 389d05d5eebSTaylor Simpson if (!ctx->has_hvx_helper) { 390d54c5615STaylor Simpson return false; 391d54c5615STaylor Simpson } 392d05d5eebSTaylor Simpson } else { 393d05d5eebSTaylor Simpson return false; 394d05d5eebSTaylor Simpson } 395d05d5eebSTaylor Simpson } 396d54c5615STaylor Simpson 397d54c5615STaylor Simpson /* Check for overlap between register reads and writes */ 398d54c5615STaylor Simpson for (int i = 0; i < ctx->reg_log_idx; i++) { 399d54c5615STaylor Simpson int rnum = ctx->reg_log[i]; 400d54c5615STaylor Simpson if (test_bit(rnum, ctx->regs_read)) { 401d54c5615STaylor Simpson return true; 402d54c5615STaylor Simpson } 403d54c5615STaylor Simpson } 404d54c5615STaylor Simpson 405455e169dSTaylor Simpson /* Check for overlap between predicate reads and writes */ 406455e169dSTaylor Simpson for (int i = 0; i < ctx->preg_log_idx; i++) { 407455e169dSTaylor Simpson int pnum = ctx->preg_log[i]; 408455e169dSTaylor Simpson if (test_bit(pnum, ctx->pregs_read)) { 409455e169dSTaylor Simpson return true; 410455e169dSTaylor Simpson } 411455e169dSTaylor Simpson } 412455e169dSTaylor Simpson 413b8552985STaylor Simpson /* Check for overlap between HVX reads and writes */ 414b8552985STaylor Simpson for (int i = 0; i < ctx->vreg_log_idx; i++) { 415b8552985STaylor Simpson int vnum = ctx->vreg_log[i]; 416b8552985STaylor Simpson if (test_bit(vnum, ctx->vregs_read)) { 417b8552985STaylor Simpson return true; 418b8552985STaylor Simpson } 419b8552985STaylor Simpson } 420b8552985STaylor Simpson if (!bitmap_empty(ctx->vregs_updated_tmp, NUM_VREGS)) { 421b8552985STaylor Simpson int i = find_first_bit(ctx->vregs_updated_tmp, NUM_VREGS); 422b8552985STaylor Simpson while (i < NUM_VREGS) { 423b8552985STaylor Simpson if (test_bit(i, ctx->vregs_read)) { 424b8552985STaylor Simpson return true; 425b8552985STaylor Simpson } 426b8552985STaylor Simpson i = find_next_bit(ctx->vregs_updated_tmp, NUM_VREGS, i + 1); 427b8552985STaylor Simpson } 428b8552985STaylor Simpson } 429b8552985STaylor Simpson if (!bitmap_empty(ctx->vregs_select, NUM_VREGS)) { 430b8552985STaylor Simpson int i = find_first_bit(ctx->vregs_select, NUM_VREGS); 431b8552985STaylor Simpson while (i < NUM_VREGS) { 432b8552985STaylor Simpson if (test_bit(i, ctx->vregs_read)) { 433b8552985STaylor Simpson return true; 434b8552985STaylor Simpson } 435b8552985STaylor Simpson i = find_next_bit(ctx->vregs_select, NUM_VREGS, i + 1); 436b8552985STaylor Simpson } 437b8552985STaylor Simpson } 438b8552985STaylor Simpson 439b8552985STaylor Simpson /* Check for overlap between HVX predicate reads and writes */ 440b8552985STaylor Simpson for (int i = 0; i < ctx->qreg_log_idx; i++) { 441b8552985STaylor Simpson int qnum = ctx->qreg_log[i]; 442b8552985STaylor Simpson if (test_bit(qnum, ctx->qregs_read)) { 443b8552985STaylor Simpson return true; 444b8552985STaylor Simpson } 445b8552985STaylor Simpson } 446b8552985STaylor Simpson 447d54c5615STaylor Simpson return false; 448d54c5615STaylor Simpson } 449d54c5615STaylor Simpson 450b9f0326bSTaylor Simpson static void mark_implicit_pred_read(DisasContext *ctx, int attrib, int pnum) 451b9f0326bSTaylor Simpson { 452b9f0326bSTaylor Simpson if (GET_ATTRIB(ctx->insn->opcode, attrib)) { 453b9f0326bSTaylor Simpson ctx_log_pred_read(ctx, pnum); 454b9f0326bSTaylor Simpson } 455b9f0326bSTaylor Simpson } 456b9f0326bSTaylor Simpson 457b9f0326bSTaylor Simpson static void mark_implicit_pred_reads(DisasContext *ctx) 458b9f0326bSTaylor Simpson { 459b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P0, 0); 460b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P1, 1); 461b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P3, 2); 462b9f0326bSTaylor Simpson mark_implicit_pred_read(ctx, A_IMPLICIT_READS_P3, 3); 463b9f0326bSTaylor Simpson } 464b9f0326bSTaylor Simpson 46510849c26STaylor Simpson static void analyze_packet(DisasContext *ctx) 46610849c26STaylor Simpson { 46710849c26STaylor Simpson Packet *pkt = ctx->pkt; 468d05d5eebSTaylor Simpson ctx->has_hvx_helper = false; 46910849c26STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 47010849c26STaylor Simpson Insn *insn = &pkt->insn[i]; 47110849c26STaylor Simpson ctx->insn = insn; 47210849c26STaylor Simpson if (opcode_analyze[insn->opcode]) { 47310849c26STaylor Simpson opcode_analyze[insn->opcode](ctx); 47410849c26STaylor Simpson } 47510849c26STaylor Simpson mark_implicit_reg_writes(ctx); 47610849c26STaylor Simpson mark_implicit_pred_writes(ctx); 477b9f0326bSTaylor Simpson mark_implicit_pred_reads(ctx); 47810849c26STaylor Simpson } 479d54c5615STaylor Simpson 480d54c5615STaylor Simpson ctx->need_commit = need_commit(ctx); 48110849c26STaylor Simpson } 48210849c26STaylor Simpson 4831e536334STaylor Simpson static void gen_start_packet(DisasContext *ctx) 4848b453a2bSTaylor Simpson { 4851e536334STaylor Simpson Packet *pkt = ctx->pkt; 4868b453a2bSTaylor Simpson target_ulong next_PC = ctx->base.pc_next + pkt->encod_pkt_size_in_bytes; 4878b453a2bSTaylor Simpson int i; 4888b453a2bSTaylor Simpson 4898b453a2bSTaylor Simpson /* Clear out the disassembly context */ 490613653e5STaylor Simpson ctx->next_PC = next_PC; 4918b453a2bSTaylor Simpson ctx->reg_log_idx = 0; 4928b453a2bSTaylor Simpson bitmap_zero(ctx->regs_written, TOTAL_PER_THREAD_REGS); 493b9f0326bSTaylor Simpson bitmap_zero(ctx->regs_read, TOTAL_PER_THREAD_REGS); 49410849c26STaylor Simpson bitmap_zero(ctx->predicated_regs, TOTAL_PER_THREAD_REGS); 4958b453a2bSTaylor Simpson ctx->preg_log_idx = 0; 4966c677c60STaylor Simpson bitmap_zero(ctx->pregs_written, NUM_PREGS); 497b9f0326bSTaylor Simpson bitmap_zero(ctx->pregs_read, NUM_PREGS); 498a82dd548STaylor Simpson ctx->future_vregs_idx = 0; 499a82dd548STaylor Simpson ctx->tmp_vregs_idx = 0; 500a82dd548STaylor Simpson ctx->vreg_log_idx = 0; 501a82dd548STaylor Simpson bitmap_zero(ctx->vregs_updated_tmp, NUM_VREGS); 502a82dd548STaylor Simpson bitmap_zero(ctx->vregs_updated, NUM_VREGS); 503a82dd548STaylor Simpson bitmap_zero(ctx->vregs_select, NUM_VREGS); 5044d6f8420STaylor Simpson bitmap_zero(ctx->predicated_future_vregs, NUM_VREGS); 5054d6f8420STaylor Simpson bitmap_zero(ctx->predicated_tmp_vregs, NUM_VREGS); 506b9f0326bSTaylor Simpson bitmap_zero(ctx->vregs_read, NUM_VREGS); 507b9f0326bSTaylor Simpson bitmap_zero(ctx->qregs_read, NUM_QREGS); 508a82dd548STaylor Simpson ctx->qreg_log_idx = 0; 5098b453a2bSTaylor Simpson for (i = 0; i < STORES_MAX; i++) { 5108b453a2bSTaylor Simpson ctx->store_width[i] = 0; 5118b453a2bSTaylor Simpson } 51292cfa25fSTaylor Simpson ctx->s1_store_processed = false; 513a82dd548STaylor Simpson ctx->pre_commit = true; 5144ff56764STaylor Simpson for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) { 5154ff56764STaylor Simpson ctx->new_value[i] = NULL; 5164ff56764STaylor Simpson } 517e22edc7cSTaylor Simpson for (i = 0; i < NUM_PREGS; i++) { 518e22edc7cSTaylor Simpson ctx->new_pred_value[i] = NULL; 519e22edc7cSTaylor Simpson } 5208b453a2bSTaylor Simpson 52110849c26STaylor Simpson analyze_packet(ctx); 52210849c26STaylor Simpson 52310849c26STaylor Simpson /* 52410849c26STaylor Simpson * pregs_written is used both in the analyze phase as well as the code 52510849c26STaylor Simpson * gen phase, so clear it again. 52610849c26STaylor Simpson */ 52710849c26STaylor Simpson bitmap_zero(ctx->pregs_written, NUM_PREGS); 52810849c26STaylor Simpson 52985580a65STaylor Simpson if (HEX_DEBUG) { 5308b453a2bSTaylor Simpson /* Handy place to set a breakpoint before the packet executes */ 531ad75a51eSRichard Henderson gen_helper_debug_start_packet(tcg_env); 53285580a65STaylor Simpson } 5338b453a2bSTaylor Simpson 5348b453a2bSTaylor Simpson /* Initialize the runtime state for packet semantics */ 5358b453a2bSTaylor Simpson if (need_slot_cancelled(pkt)) { 5368b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_slot_cancelled, 0); 5378b453a2bSTaylor Simpson } 5380fc56c43STaylor Simpson ctx->branch_taken = NULL; 5398b453a2bSTaylor Simpson if (pkt->pkt_has_cof) { 5400fc56c43STaylor Simpson ctx->branch_taken = tcg_temp_new(); 541fb67c2bfSTaylor Simpson if (pkt->pkt_has_multi_cof) { 5420fc56c43STaylor Simpson tcg_gen_movi_tl(ctx->branch_taken, 0); 543fb67c2bfSTaylor Simpson } 544613653e5STaylor Simpson if (need_next_PC(ctx)) { 545613653e5STaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], next_PC); 546613653e5STaylor Simpson } 5478b453a2bSTaylor Simpson } 54825e1d87dSTaylor Simpson if (HEX_DEBUG) { 549842b206fSTaylor Simpson ctx->pred_written = tcg_temp_new(); 550842b206fSTaylor Simpson tcg_gen_movi_tl(ctx->pred_written, 0); 5518b453a2bSTaylor Simpson } 552a82dd548STaylor Simpson 5536aa4f1d1STaylor Simpson /* Preload the predicated registers into get_result_gpr(ctx, i) */ 554d54c5615STaylor Simpson if (ctx->need_commit && 555d54c5615STaylor Simpson !bitmap_empty(ctx->predicated_regs, TOTAL_PER_THREAD_REGS)) { 556*20c34a92SBrian Cain i = find_first_bit(ctx->predicated_regs, TOTAL_PER_THREAD_REGS); 55710849c26STaylor Simpson while (i < TOTAL_PER_THREAD_REGS) { 5586aa4f1d1STaylor Simpson tcg_gen_mov_tl(get_result_gpr(ctx, i), hex_gpr[i]); 55910849c26STaylor Simpson i = find_next_bit(ctx->predicated_regs, TOTAL_PER_THREAD_REGS, 56010849c26STaylor Simpson i + 1); 56110849c26STaylor Simpson } 56210849c26STaylor Simpson } 56310849c26STaylor Simpson 56425e1d87dSTaylor Simpson /* 5652babbd93SMatheus Tavares Bernardino * Preload the predicated pred registers into ctx->new_pred_value[pred_num] 56625e1d87dSTaylor Simpson * Only endloop instructions conditionally write to pred registers 56725e1d87dSTaylor Simpson */ 568455e169dSTaylor Simpson if (ctx->need_commit && pkt->pkt_has_endloop) { 569*20c34a92SBrian Cain for (i = 0; i < ctx->preg_log_idx; i++) { 57025e1d87dSTaylor Simpson int pred_num = ctx->preg_log[i]; 571e22edc7cSTaylor Simpson ctx->new_pred_value[pred_num] = tcg_temp_new(); 572e22edc7cSTaylor Simpson tcg_gen_mov_tl(ctx->new_pred_value[pred_num], hex_pred[pred_num]); 57325e1d87dSTaylor Simpson } 57425e1d87dSTaylor Simpson } 57525e1d87dSTaylor Simpson 5764d6f8420STaylor Simpson /* Preload the predicated HVX registers into future_VRegs and tmp_VRegs */ 5774d6f8420STaylor Simpson if (!bitmap_empty(ctx->predicated_future_vregs, NUM_VREGS)) { 578*20c34a92SBrian Cain i = find_first_bit(ctx->predicated_future_vregs, NUM_VREGS); 5794d6f8420STaylor Simpson while (i < NUM_VREGS) { 5804d6f8420STaylor Simpson const intptr_t VdV_off = 5814d6f8420STaylor Simpson ctx_future_vreg_off(ctx, i, 1, true); 5824d6f8420STaylor Simpson intptr_t src_off = offsetof(CPUHexagonState, VRegs[i]); 5834d6f8420STaylor Simpson tcg_gen_gvec_mov(MO_64, VdV_off, 5844d6f8420STaylor Simpson src_off, 5854d6f8420STaylor Simpson sizeof(MMVector), 5864d6f8420STaylor Simpson sizeof(MMVector)); 5874d6f8420STaylor Simpson i = find_next_bit(ctx->predicated_future_vregs, NUM_VREGS, i + 1); 5884d6f8420STaylor Simpson } 5894d6f8420STaylor Simpson } 5904d6f8420STaylor Simpson if (!bitmap_empty(ctx->predicated_tmp_vregs, NUM_VREGS)) { 591*20c34a92SBrian Cain i = find_first_bit(ctx->predicated_tmp_vregs, NUM_VREGS); 5924d6f8420STaylor Simpson while (i < NUM_VREGS) { 5934d6f8420STaylor Simpson const intptr_t VdV_off = 5944d6f8420STaylor Simpson ctx_tmp_vreg_off(ctx, i, 1, true); 5954d6f8420STaylor Simpson intptr_t src_off = offsetof(CPUHexagonState, VRegs[i]); 5964d6f8420STaylor Simpson tcg_gen_gvec_mov(MO_64, VdV_off, 5974d6f8420STaylor Simpson src_off, 5984d6f8420STaylor Simpson sizeof(MMVector), 5994d6f8420STaylor Simpson sizeof(MMVector)); 6004d6f8420STaylor Simpson i = find_next_bit(ctx->predicated_tmp_vregs, NUM_VREGS, i + 1); 6014d6f8420STaylor Simpson } 6024d6f8420STaylor Simpson } 603a82dd548STaylor Simpson } 604a82dd548STaylor Simpson 6051e536334STaylor Simpson bool is_gather_store_insn(DisasContext *ctx) 606a82dd548STaylor Simpson { 6071e536334STaylor Simpson Packet *pkt = ctx->pkt; 6081e536334STaylor Simpson Insn *insn = ctx->insn; 609a82dd548STaylor Simpson if (GET_ATTRIB(insn->opcode, A_CVI_NEW) && 610a82dd548STaylor Simpson insn->new_value_producer_slot == 1) { 611a82dd548STaylor Simpson /* Look for gather instruction */ 612a82dd548STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 613a82dd548STaylor Simpson Insn *in = &pkt->insn[i]; 614a82dd548STaylor Simpson if (GET_ATTRIB(in->opcode, A_CVI_GATHER) && in->slot == 1) { 615a82dd548STaylor Simpson return true; 616a82dd548STaylor Simpson } 617a82dd548STaylor Simpson } 618a82dd548STaylor Simpson } 619a82dd548STaylor Simpson return false; 6208b453a2bSTaylor Simpson } 6218b453a2bSTaylor Simpson 6221e536334STaylor Simpson static void mark_store_width(DisasContext *ctx) 623661ad999STaylor Simpson { 6241e536334STaylor Simpson uint16_t opcode = ctx->insn->opcode; 6251e536334STaylor Simpson uint32_t slot = ctx->insn->slot; 626661ad999STaylor Simpson uint8_t width = 0; 627661ad999STaylor Simpson 628661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_SCALAR_STORE)) { 629406c74f2STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_0B)) { 630406c74f2STaylor Simpson return; 631406c74f2STaylor Simpson } 632661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_1B)) { 633661ad999STaylor Simpson width |= 1; 634661ad999STaylor Simpson } 635661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_2B)) { 636661ad999STaylor Simpson width |= 2; 637661ad999STaylor Simpson } 638661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_4B)) { 639661ad999STaylor Simpson width |= 4; 640661ad999STaylor Simpson } 641661ad999STaylor Simpson if (GET_ATTRIB(opcode, A_MEMSIZE_8B)) { 642661ad999STaylor Simpson width |= 8; 643661ad999STaylor Simpson } 644661ad999STaylor Simpson tcg_debug_assert(is_power_of_2(width)); 645661ad999STaylor Simpson ctx->store_width[slot] = width; 646661ad999STaylor Simpson } 647661ad999STaylor Simpson } 648661ad999STaylor Simpson 6491e536334STaylor Simpson static void gen_insn(DisasContext *ctx) 6508b453a2bSTaylor Simpson { 6511e536334STaylor Simpson if (ctx->insn->generate) { 6521e536334STaylor Simpson ctx->insn->generate(ctx); 6531e536334STaylor Simpson mark_store_width(ctx); 6548b453a2bSTaylor Simpson } else { 655743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_OPCODE); 6568b453a2bSTaylor Simpson } 6578b453a2bSTaylor Simpson } 6588b453a2bSTaylor Simpson 6598b453a2bSTaylor Simpson /* 6608b453a2bSTaylor Simpson * Helpers for generating the packet commit 6618b453a2bSTaylor Simpson */ 6628b453a2bSTaylor Simpson static void gen_reg_writes(DisasContext *ctx) 6638b453a2bSTaylor Simpson { 6648b453a2bSTaylor Simpson int i; 6658b453a2bSTaylor Simpson 666d54c5615STaylor Simpson /* Early exit if not needed */ 667d54c5615STaylor Simpson if (!ctx->need_commit) { 668d54c5615STaylor Simpson return; 669d54c5615STaylor Simpson } 670d54c5615STaylor Simpson 6718b453a2bSTaylor Simpson for (i = 0; i < ctx->reg_log_idx; i++) { 6728b453a2bSTaylor Simpson int reg_num = ctx->reg_log[i]; 6738b453a2bSTaylor Simpson 6746aa4f1d1STaylor Simpson tcg_gen_mov_tl(hex_gpr[reg_num], get_result_gpr(ctx, reg_num)); 675564b2040STaylor Simpson 676564b2040STaylor Simpson /* 677564b2040STaylor Simpson * ctx->is_tight_loop is set when SA0 points to the beginning of the TB. 678564b2040STaylor Simpson * If we write to SA0, we have to turn off tight loop handling. 679564b2040STaylor Simpson */ 680564b2040STaylor Simpson if (reg_num == HEX_REG_SA0) { 681564b2040STaylor Simpson ctx->is_tight_loop = false; 682564b2040STaylor Simpson } 6838b453a2bSTaylor Simpson } 6848b453a2bSTaylor Simpson } 6858b453a2bSTaylor Simpson 6861e536334STaylor Simpson static void gen_pred_writes(DisasContext *ctx) 6878b453a2bSTaylor Simpson { 688455e169dSTaylor Simpson /* Early exit if not needed or the log is empty */ 689455e169dSTaylor Simpson if (!ctx->need_commit || !ctx->preg_log_idx) { 6908b453a2bSTaylor Simpson return; 6918b453a2bSTaylor Simpson } 6928b453a2bSTaylor Simpson 69325e1d87dSTaylor Simpson for (int i = 0; i < ctx->preg_log_idx; i++) { 6948b453a2bSTaylor Simpson int pred_num = ctx->preg_log[i]; 695e22edc7cSTaylor Simpson tcg_gen_mov_tl(hex_pred[pred_num], ctx->new_pred_value[pred_num]); 6968b453a2bSTaylor Simpson } 6978b453a2bSTaylor Simpson } 6988b453a2bSTaylor Simpson 699a27c100cSTaylor Simpson static void gen_check_store_width(DisasContext *ctx, int slot_num) 7008b453a2bSTaylor Simpson { 70185580a65STaylor Simpson if (HEX_DEBUG) { 70223803bbeSPhilippe Mathieu-Daudé TCGv slot = tcg_constant_tl(slot_num); 70323803bbeSPhilippe Mathieu-Daudé TCGv check = tcg_constant_tl(ctx->store_width[slot_num]); 704ad75a51eSRichard Henderson gen_helper_debug_check_store_width(tcg_env, slot, check); 70585580a65STaylor Simpson } 706a27c100cSTaylor Simpson } 7078b453a2bSTaylor Simpson 7088b453a2bSTaylor Simpson static bool slot_is_predicated(Packet *pkt, int slot_num) 7098b453a2bSTaylor Simpson { 7108b453a2bSTaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 7118b453a2bSTaylor Simpson if (pkt->insn[i].slot == slot_num) { 7128b453a2bSTaylor Simpson return GET_ATTRIB(pkt->insn[i].opcode, A_CONDEXEC); 7138b453a2bSTaylor Simpson } 7148b453a2bSTaylor Simpson } 7158b453a2bSTaylor Simpson /* If we get to here, we didn't find an instruction in the requested slot */ 7168b453a2bSTaylor Simpson g_assert_not_reached(); 7178b453a2bSTaylor Simpson } 7188b453a2bSTaylor Simpson 7191e536334STaylor Simpson void process_store(DisasContext *ctx, int slot_num) 7208b453a2bSTaylor Simpson { 7211e536334STaylor Simpson bool is_predicated = slot_is_predicated(ctx->pkt, slot_num); 7228b453a2bSTaylor Simpson TCGLabel *label_end = NULL; 7238b453a2bSTaylor Simpson 7248b453a2bSTaylor Simpson /* 7258b453a2bSTaylor Simpson * We may have already processed this store 7268b453a2bSTaylor Simpson * See CHECK_NOSHUF in macros.h 7278b453a2bSTaylor Simpson */ 7288b453a2bSTaylor Simpson if (slot_num == 1 && ctx->s1_store_processed) { 7298b453a2bSTaylor Simpson return; 7308b453a2bSTaylor Simpson } 73192cfa25fSTaylor Simpson ctx->s1_store_processed = true; 7328b453a2bSTaylor Simpson 7338b453a2bSTaylor Simpson if (is_predicated) { 7348b453a2bSTaylor Simpson TCGv cancelled = tcg_temp_new(); 7358b453a2bSTaylor Simpson label_end = gen_new_label(); 7368b453a2bSTaylor Simpson 7378b453a2bSTaylor Simpson /* Don't do anything if the slot was cancelled */ 7388b453a2bSTaylor Simpson tcg_gen_extract_tl(cancelled, hex_slot_cancelled, slot_num, 1); 7398b453a2bSTaylor Simpson tcg_gen_brcondi_tl(TCG_COND_NE, cancelled, 0, label_end); 7408b453a2bSTaylor Simpson } 7418b453a2bSTaylor Simpson { 7427a819de8SRichard Henderson TCGv address = tcg_temp_new(); 7438b453a2bSTaylor Simpson tcg_gen_mov_tl(address, hex_store_addr[slot_num]); 7448b453a2bSTaylor Simpson 7458b453a2bSTaylor Simpson /* 7468b453a2bSTaylor Simpson * If we know the width from the DisasContext, we can 7478b453a2bSTaylor Simpson * generate much cleaner code. 7488b453a2bSTaylor Simpson * Unfortunately, not all instructions execute the fSTORE 7498b453a2bSTaylor Simpson * macro during code generation. Anything that uses the 7508b453a2bSTaylor Simpson * generic helper will have this problem. Instructions 7518b453a2bSTaylor Simpson * that use fWRAP to generate proper TCG code will be OK. 7528b453a2bSTaylor Simpson */ 7538b453a2bSTaylor Simpson switch (ctx->store_width[slot_num]) { 7548b453a2bSTaylor Simpson case 1: 755a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 75653b26d25SRichard Henderson tcg_gen_qemu_st_tl(hex_store_val32[slot_num], 7578b453a2bSTaylor Simpson hex_store_addr[slot_num], 75853b26d25SRichard Henderson ctx->mem_idx, MO_UB); 7598b453a2bSTaylor Simpson break; 7608b453a2bSTaylor Simpson case 2: 761a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 76253b26d25SRichard Henderson tcg_gen_qemu_st_tl(hex_store_val32[slot_num], 7638b453a2bSTaylor Simpson hex_store_addr[slot_num], 76453b26d25SRichard Henderson ctx->mem_idx, MO_TEUW); 7658b453a2bSTaylor Simpson break; 7668b453a2bSTaylor Simpson case 4: 767a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 76853b26d25SRichard Henderson tcg_gen_qemu_st_tl(hex_store_val32[slot_num], 7698b453a2bSTaylor Simpson hex_store_addr[slot_num], 77053b26d25SRichard Henderson ctx->mem_idx, MO_TEUL); 7718b453a2bSTaylor Simpson break; 7728b453a2bSTaylor Simpson case 8: 773a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 77453b26d25SRichard Henderson tcg_gen_qemu_st_i64(hex_store_val64[slot_num], 7758b453a2bSTaylor Simpson hex_store_addr[slot_num], 77653b26d25SRichard Henderson ctx->mem_idx, MO_TEUQ); 7778b453a2bSTaylor Simpson break; 7788b453a2bSTaylor Simpson default: 7798b453a2bSTaylor Simpson { 7808b453a2bSTaylor Simpson /* 7818b453a2bSTaylor Simpson * If we get to here, we don't know the width at 7828b453a2bSTaylor Simpson * TCG generation time, we'll use a helper to 7838b453a2bSTaylor Simpson * avoid branching based on the width at runtime. 7848b453a2bSTaylor Simpson */ 78523803bbeSPhilippe Mathieu-Daudé TCGv slot = tcg_constant_tl(slot_num); 786ad75a51eSRichard Henderson gen_helper_commit_store(tcg_env, slot); 7878b453a2bSTaylor Simpson } 7888b453a2bSTaylor Simpson } 7898b453a2bSTaylor Simpson } 7908b453a2bSTaylor Simpson if (is_predicated) { 7918b453a2bSTaylor Simpson gen_set_label(label_end); 7928b453a2bSTaylor Simpson } 7938b453a2bSTaylor Simpson } 7948b453a2bSTaylor Simpson 7951e536334STaylor Simpson static void process_store_log(DisasContext *ctx) 7968b453a2bSTaylor Simpson { 7978b453a2bSTaylor Simpson /* 7988b453a2bSTaylor Simpson * When a packet has two stores, the hardware processes 799c23b5764STaylor Simpson * slot 1 and then slot 0. This will be important when 8008b453a2bSTaylor Simpson * the memory accesses overlap. 8018b453a2bSTaylor Simpson */ 8021e536334STaylor Simpson Packet *pkt = ctx->pkt; 803e2be9a5cSTaylor Simpson if (pkt->pkt_has_store_s1) { 804e2be9a5cSTaylor Simpson g_assert(!pkt->pkt_has_dczeroa); 8051e536334STaylor Simpson process_store(ctx, 1); 8068b453a2bSTaylor Simpson } 807e2be9a5cSTaylor Simpson if (pkt->pkt_has_store_s0) { 808e2be9a5cSTaylor Simpson g_assert(!pkt->pkt_has_dczeroa); 8091e536334STaylor Simpson process_store(ctx, 0); 8108b453a2bSTaylor Simpson } 8118b453a2bSTaylor Simpson } 8128b453a2bSTaylor Simpson 8138b453a2bSTaylor Simpson /* Zero out a 32-bit cache line */ 8141e536334STaylor Simpson static void process_dczeroa(DisasContext *ctx) 8158b453a2bSTaylor Simpson { 8161e536334STaylor Simpson if (ctx->pkt->pkt_has_dczeroa) { 8178b453a2bSTaylor Simpson /* Store 32 bytes of zero starting at (addr & ~0x1f) */ 8188b453a2bSTaylor Simpson TCGv addr = tcg_temp_new(); 81923803bbeSPhilippe Mathieu-Daudé TCGv_i64 zero = tcg_constant_i64(0); 8208b453a2bSTaylor Simpson 8210fc56c43STaylor Simpson tcg_gen_andi_tl(addr, ctx->dczero_addr, ~0x1f); 82253b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 8238b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 82453b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 8258b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 82653b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 8278b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 82853b26d25SRichard Henderson tcg_gen_qemu_st_i64(zero, addr, ctx->mem_idx, MO_UQ); 8298b453a2bSTaylor Simpson } 8308b453a2bSTaylor Simpson } 8318b453a2bSTaylor Simpson 832a82dd548STaylor Simpson static bool pkt_has_hvx_store(Packet *pkt) 833a82dd548STaylor Simpson { 834a82dd548STaylor Simpson int i; 835a82dd548STaylor Simpson for (i = 0; i < pkt->num_insns; i++) { 836a82dd548STaylor Simpson int opcode = pkt->insn[i].opcode; 837a82dd548STaylor Simpson if (GET_ATTRIB(opcode, A_CVI) && GET_ATTRIB(opcode, A_STORE)) { 838a82dd548STaylor Simpson return true; 839a82dd548STaylor Simpson } 840a82dd548STaylor Simpson } 841a82dd548STaylor Simpson return false; 842a82dd548STaylor Simpson } 843a82dd548STaylor Simpson 8441e536334STaylor Simpson static void gen_commit_hvx(DisasContext *ctx) 845a82dd548STaylor Simpson { 846a82dd548STaylor Simpson int i; 847a82dd548STaylor Simpson 848b8552985STaylor Simpson /* Early exit if not needed */ 849b8552985STaylor Simpson if (!ctx->need_commit) { 850b8552985STaylor Simpson g_assert(!pkt_has_hvx_store(ctx->pkt)); 851b8552985STaylor Simpson return; 852b8552985STaylor Simpson } 853b8552985STaylor Simpson 854a82dd548STaylor Simpson /* 855a82dd548STaylor Simpson * for (i = 0; i < ctx->vreg_log_idx; i++) { 856a82dd548STaylor Simpson * int rnum = ctx->vreg_log[i]; 857a82dd548STaylor Simpson * env->VRegs[rnum] = env->future_VRegs[rnum]; 858a82dd548STaylor Simpson * } 859a82dd548STaylor Simpson */ 860a82dd548STaylor Simpson for (i = 0; i < ctx->vreg_log_idx; i++) { 861a82dd548STaylor Simpson int rnum = ctx->vreg_log[i]; 862a82dd548STaylor Simpson intptr_t dstoff = offsetof(CPUHexagonState, VRegs[rnum]); 863a82dd548STaylor Simpson intptr_t srcoff = ctx_future_vreg_off(ctx, rnum, 1, false); 864a82dd548STaylor Simpson size_t size = sizeof(MMVector); 865a82dd548STaylor Simpson 866a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 867a82dd548STaylor Simpson } 868a82dd548STaylor Simpson 869a82dd548STaylor Simpson /* 870a82dd548STaylor Simpson * for (i = 0; i < ctx->qreg_log_idx; i++) { 871a82dd548STaylor Simpson * int rnum = ctx->qreg_log[i]; 872a82dd548STaylor Simpson * env->QRegs[rnum] = env->future_QRegs[rnum]; 873a82dd548STaylor Simpson * } 874a82dd548STaylor Simpson */ 875a82dd548STaylor Simpson for (i = 0; i < ctx->qreg_log_idx; i++) { 876a82dd548STaylor Simpson int rnum = ctx->qreg_log[i]; 877a82dd548STaylor Simpson intptr_t dstoff = offsetof(CPUHexagonState, QRegs[rnum]); 878a82dd548STaylor Simpson intptr_t srcoff = offsetof(CPUHexagonState, future_QRegs[rnum]); 879a82dd548STaylor Simpson size_t size = sizeof(MMQReg); 880a82dd548STaylor Simpson 881a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 882a82dd548STaylor Simpson } 883a82dd548STaylor Simpson 8841e536334STaylor Simpson if (pkt_has_hvx_store(ctx->pkt)) { 885ad75a51eSRichard Henderson gen_helper_commit_hvx_stores(tcg_env); 886a82dd548STaylor Simpson } 887a82dd548STaylor Simpson } 888a82dd548STaylor Simpson 8891e536334STaylor Simpson static void update_exec_counters(DisasContext *ctx) 8908b453a2bSTaylor Simpson { 8911e536334STaylor Simpson Packet *pkt = ctx->pkt; 8928b453a2bSTaylor Simpson int num_insns = pkt->num_insns; 8938b453a2bSTaylor Simpson int num_real_insns = 0; 894a82dd548STaylor Simpson int num_hvx_insns = 0; 8958b453a2bSTaylor Simpson 8968b453a2bSTaylor Simpson for (int i = 0; i < num_insns; i++) { 8978b453a2bSTaylor Simpson if (!pkt->insn[i].is_endloop && 8988b453a2bSTaylor Simpson !pkt->insn[i].part1 && 8998b453a2bSTaylor Simpson !GET_ATTRIB(pkt->insn[i].opcode, A_IT_NOP)) { 9008b453a2bSTaylor Simpson num_real_insns++; 9018b453a2bSTaylor Simpson } 902a82dd548STaylor Simpson if (GET_ATTRIB(pkt->insn[i].opcode, A_CVI)) { 903a82dd548STaylor Simpson num_hvx_insns++; 904a82dd548STaylor Simpson } 9058b453a2bSTaylor Simpson } 9068b453a2bSTaylor Simpson 9078b453a2bSTaylor Simpson ctx->num_packets++; 9088b453a2bSTaylor Simpson ctx->num_insns += num_real_insns; 909a82dd548STaylor Simpson ctx->num_hvx_insns += num_hvx_insns; 9108b453a2bSTaylor Simpson } 9118b453a2bSTaylor Simpson 9121e536334STaylor Simpson static void gen_commit_packet(DisasContext *ctx) 9138b453a2bSTaylor Simpson { 914c23b5764STaylor Simpson /* 915c23b5764STaylor Simpson * If there is more than one store in a packet, make sure they are all OK 916c23b5764STaylor Simpson * before proceeding with the rest of the packet commit. 917c23b5764STaylor Simpson * 918c23b5764STaylor Simpson * dczeroa has to be the only store operation in the packet, so we go 919c23b5764STaylor Simpson * ahead and process that first. 920c23b5764STaylor Simpson * 921a82dd548STaylor Simpson * When there is an HVX store, there can also be a scalar store in either 922a82dd548STaylor Simpson * slot 0 or slot1, so we create a mask for the helper to indicate what 923a82dd548STaylor Simpson * work to do. 924a82dd548STaylor Simpson * 925c23b5764STaylor Simpson * When there are two scalar stores, we probe the one in slot 0. 926c23b5764STaylor Simpson * 927c23b5764STaylor Simpson * Note that we don't call the probe helper for packets with only one 928c23b5764STaylor Simpson * store. Therefore, we call process_store_log before anything else 929c23b5764STaylor Simpson * involved in committing the packet. 930c23b5764STaylor Simpson */ 9311e536334STaylor Simpson Packet *pkt = ctx->pkt; 932c23b5764STaylor Simpson bool has_store_s0 = pkt->pkt_has_store_s0; 933c23b5764STaylor Simpson bool has_store_s1 = (pkt->pkt_has_store_s1 && !ctx->s1_store_processed); 934a82dd548STaylor Simpson bool has_hvx_store = pkt_has_hvx_store(pkt); 935c23b5764STaylor Simpson if (pkt->pkt_has_dczeroa) { 936c23b5764STaylor Simpson /* 937c23b5764STaylor Simpson * The dczeroa will be the store in slot 0, check that we don't have 938a82dd548STaylor Simpson * a store in slot 1 or an HVX store. 939c23b5764STaylor Simpson */ 940e2be9a5cSTaylor Simpson g_assert(!has_store_s1 && !has_hvx_store); 9411e536334STaylor Simpson process_dczeroa(ctx); 942a82dd548STaylor Simpson } else if (has_hvx_store) { 943a82dd548STaylor Simpson if (!has_store_s0 && !has_store_s1) { 9442bda44e8STaylor Simpson TCGv mem_idx = tcg_constant_tl(ctx->mem_idx); 945ad75a51eSRichard Henderson gen_helper_probe_hvx_stores(tcg_env, mem_idx); 946a82dd548STaylor Simpson } else { 947a82dd548STaylor Simpson int mask = 0; 948a82dd548STaylor Simpson 949a82dd548STaylor Simpson if (has_store_s0) { 9507b84fd04STaylor Simpson mask = 9517b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, HAS_ST0, 1); 952a82dd548STaylor Simpson } 953a82dd548STaylor Simpson if (has_store_s1) { 9547b84fd04STaylor Simpson mask = 9557b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, HAS_ST1, 1); 956a82dd548STaylor Simpson } 957a82dd548STaylor Simpson if (has_hvx_store) { 9587b84fd04STaylor Simpson mask = 9597b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, 9607b84fd04STaylor Simpson HAS_HVX_STORES, 1); 9617b84fd04STaylor Simpson } 9627b84fd04STaylor Simpson if (has_store_s0 && slot_is_predicated(pkt, 0)) { 9637b84fd04STaylor Simpson mask = 9647b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, 9657b84fd04STaylor Simpson S0_IS_PRED, 1); 9667b84fd04STaylor Simpson } 9677b84fd04STaylor Simpson if (has_store_s1 && slot_is_predicated(pkt, 1)) { 9687b84fd04STaylor Simpson mask = 9697b84fd04STaylor Simpson FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, 9707b84fd04STaylor Simpson S1_IS_PRED, 1); 971a82dd548STaylor Simpson } 9722bda44e8STaylor Simpson mask = FIELD_DP32(mask, PROBE_PKT_SCALAR_HVX_STORES, MMU_IDX, 9732bda44e8STaylor Simpson ctx->mem_idx); 974ad75a51eSRichard Henderson gen_helper_probe_pkt_scalar_hvx_stores(tcg_env, 9752bda44e8STaylor Simpson tcg_constant_tl(mask)); 976a82dd548STaylor Simpson } 977c23b5764STaylor Simpson } else if (has_store_s0 && has_store_s1) { 978c23b5764STaylor Simpson /* 979c23b5764STaylor Simpson * process_store_log will execute the slot 1 store first, 980c23b5764STaylor Simpson * so we only have to probe the store in slot 0 981c23b5764STaylor Simpson */ 9827b84fd04STaylor Simpson int args = 0; 9837b84fd04STaylor Simpson args = 9847b84fd04STaylor Simpson FIELD_DP32(args, PROBE_PKT_SCALAR_STORE_S0, MMU_IDX, ctx->mem_idx); 9857b84fd04STaylor Simpson if (slot_is_predicated(pkt, 0)) { 9867b84fd04STaylor Simpson args = 9877b84fd04STaylor Simpson FIELD_DP32(args, PROBE_PKT_SCALAR_STORE_S0, IS_PREDICATED, 1); 9887b84fd04STaylor Simpson } 9897b84fd04STaylor Simpson TCGv args_tcgv = tcg_constant_tl(args); 990ad75a51eSRichard Henderson gen_helper_probe_pkt_scalar_store_s0(tcg_env, args_tcgv); 991c23b5764STaylor Simpson } 992c23b5764STaylor Simpson 9931e536334STaylor Simpson process_store_log(ctx); 994c23b5764STaylor Simpson 9958b453a2bSTaylor Simpson gen_reg_writes(ctx); 9961e536334STaylor Simpson gen_pred_writes(ctx); 997a82dd548STaylor Simpson if (pkt->pkt_has_hvx) { 9981e536334STaylor Simpson gen_commit_hvx(ctx); 999a82dd548STaylor Simpson } 10001e536334STaylor Simpson update_exec_counters(ctx); 100185580a65STaylor Simpson if (HEX_DEBUG) { 10028b453a2bSTaylor Simpson TCGv has_st0 = 100323803bbeSPhilippe Mathieu-Daudé tcg_constant_tl(pkt->pkt_has_store_s0 && !pkt->pkt_has_dczeroa); 10048b453a2bSTaylor Simpson TCGv has_st1 = 100523803bbeSPhilippe Mathieu-Daudé tcg_constant_tl(pkt->pkt_has_store_s1 && !pkt->pkt_has_dczeroa); 10068b453a2bSTaylor Simpson 10078b453a2bSTaylor Simpson /* Handy place to set a breakpoint at the end of execution */ 1008ad75a51eSRichard Henderson gen_helper_debug_commit_end(tcg_env, tcg_constant_tl(ctx->pkt->pc), 10090fc56c43STaylor Simpson ctx->pred_written, has_st0, has_st1); 10108b453a2bSTaylor Simpson } 10118b453a2bSTaylor Simpson 1012a82dd548STaylor Simpson if (pkt->vhist_insn != NULL) { 1013a82dd548STaylor Simpson ctx->pre_commit = false; 10141e536334STaylor Simpson ctx->insn = pkt->vhist_insn; 10151e536334STaylor Simpson pkt->vhist_insn->generate(ctx); 1016a82dd548STaylor Simpson } 1017a82dd548STaylor Simpson 10188b453a2bSTaylor Simpson if (pkt->pkt_has_cof) { 1019743debbcSTaylor Simpson gen_end_tb(ctx); 10208b453a2bSTaylor Simpson } 10218b453a2bSTaylor Simpson } 10228b453a2bSTaylor Simpson 10238b453a2bSTaylor Simpson static void decode_and_translate_packet(CPUHexagonState *env, DisasContext *ctx) 10248b453a2bSTaylor Simpson { 10258b453a2bSTaylor Simpson uint32_t words[PACKET_WORDS_MAX]; 10268b453a2bSTaylor Simpson int nwords; 10278b453a2bSTaylor Simpson Packet pkt; 10288b453a2bSTaylor Simpson int i; 10298b453a2bSTaylor Simpson 10308b453a2bSTaylor Simpson nwords = read_packet_words(env, ctx, words); 10318b453a2bSTaylor Simpson if (!nwords) { 1032743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_PACKET); 10338b453a2bSTaylor Simpson return; 10348b453a2bSTaylor Simpson } 10358b453a2bSTaylor Simpson 10368b453a2bSTaylor Simpson if (decode_packet(nwords, words, &pkt, false) > 0) { 103740085901STaylor Simpson pkt.pc = ctx->base.pc_next; 10388b453a2bSTaylor Simpson HEX_DEBUG_PRINT_PKT(&pkt); 10391e536334STaylor Simpson ctx->pkt = &pkt; 10401e536334STaylor Simpson gen_start_packet(ctx); 10418b453a2bSTaylor Simpson for (i = 0; i < pkt.num_insns; i++) { 10421e536334STaylor Simpson ctx->insn = &pkt.insn[i]; 10431e536334STaylor Simpson gen_insn(ctx); 10448b453a2bSTaylor Simpson } 10451e536334STaylor Simpson gen_commit_packet(ctx); 10468b453a2bSTaylor Simpson ctx->base.pc_next += pkt.encod_pkt_size_in_bytes; 10478b453a2bSTaylor Simpson } else { 1048743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_PACKET); 10498b453a2bSTaylor Simpson } 10508b453a2bSTaylor Simpson } 10518b453a2bSTaylor Simpson 10528b453a2bSTaylor Simpson static void hexagon_tr_init_disas_context(DisasContextBase *dcbase, 10538b453a2bSTaylor Simpson CPUState *cs) 10548b453a2bSTaylor Simpson { 10558b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 1056b77af26eSRichard Henderson HexagonCPU *hex_cpu = env_archcpu(cpu_env(cs)); 1057564b2040STaylor Simpson uint32_t hex_flags = dcbase->tb->flags; 10588b453a2bSTaylor Simpson 10598b453a2bSTaylor Simpson ctx->mem_idx = MMU_USER_IDX; 10608b453a2bSTaylor Simpson ctx->num_packets = 0; 10618b453a2bSTaylor Simpson ctx->num_insns = 0; 1062a82dd548STaylor Simpson ctx->num_hvx_insns = 0; 10631b9a7f2aSTaylor Simpson ctx->branch_cond = TCG_COND_NEVER; 1064564b2040STaylor Simpson ctx->is_tight_loop = FIELD_EX32(hex_flags, TB_FLAGS, IS_TIGHT_LOOP); 1065d54c5615STaylor Simpson ctx->short_circuit = hex_cpu->short_circuit; 10668b453a2bSTaylor Simpson } 10678b453a2bSTaylor Simpson 10688b453a2bSTaylor Simpson static void hexagon_tr_tb_start(DisasContextBase *db, CPUState *cpu) 10698b453a2bSTaylor Simpson { 10708b453a2bSTaylor Simpson } 10718b453a2bSTaylor Simpson 10728b453a2bSTaylor Simpson static void hexagon_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) 10738b453a2bSTaylor Simpson { 10748b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 10758b453a2bSTaylor Simpson 10768b453a2bSTaylor Simpson tcg_gen_insn_start(ctx->base.pc_next); 10778b453a2bSTaylor Simpson } 10788b453a2bSTaylor Simpson 10798b453a2bSTaylor Simpson static bool pkt_crosses_page(CPUHexagonState *env, DisasContext *ctx) 10808b453a2bSTaylor Simpson { 10818b453a2bSTaylor Simpson target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK; 10828b453a2bSTaylor Simpson bool found_end = false; 10838b453a2bSTaylor Simpson int nwords; 10848b453a2bSTaylor Simpson 10858b453a2bSTaylor Simpson for (nwords = 0; !found_end && nwords < PACKET_WORDS_MAX; nwords++) { 10868b453a2bSTaylor Simpson uint32_t word = cpu_ldl_code(env, 10878b453a2bSTaylor Simpson ctx->base.pc_next + nwords * sizeof(uint32_t)); 10888b453a2bSTaylor Simpson found_end = is_packet_end(word); 10898b453a2bSTaylor Simpson } 10908b453a2bSTaylor Simpson uint32_t next_ptr = ctx->base.pc_next + nwords * sizeof(uint32_t); 10918b453a2bSTaylor Simpson return found_end && next_ptr - page_start >= TARGET_PAGE_SIZE; 10928b453a2bSTaylor Simpson } 10938b453a2bSTaylor Simpson 10948b453a2bSTaylor Simpson static void hexagon_tr_translate_packet(DisasContextBase *dcbase, CPUState *cpu) 10958b453a2bSTaylor Simpson { 10968b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 1097b77af26eSRichard Henderson CPUHexagonState *env = cpu_env(cpu); 10988b453a2bSTaylor Simpson 10998b453a2bSTaylor Simpson decode_and_translate_packet(env, ctx); 11008b453a2bSTaylor Simpson 11018b453a2bSTaylor Simpson if (ctx->base.is_jmp == DISAS_NEXT) { 11028b453a2bSTaylor Simpson target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK; 11038b453a2bSTaylor Simpson target_ulong bytes_max = PACKET_WORDS_MAX * sizeof(target_ulong); 11048b453a2bSTaylor Simpson 11058b453a2bSTaylor Simpson if (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE || 11068b453a2bSTaylor Simpson (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE - bytes_max && 11078b453a2bSTaylor Simpson pkt_crosses_page(env, ctx))) { 11088b453a2bSTaylor Simpson ctx->base.is_jmp = DISAS_TOO_MANY; 11098b453a2bSTaylor Simpson } 11108b453a2bSTaylor Simpson 11118b453a2bSTaylor Simpson /* 11128b453a2bSTaylor Simpson * The CPU log is used to compare against LLDB single stepping, 11138b453a2bSTaylor Simpson * so end the TLB after every packet. 11148b453a2bSTaylor Simpson */ 11157d9ab202STaylor Simpson HexagonCPU *hex_cpu = env_archcpu(env); 11168b453a2bSTaylor Simpson if (hex_cpu->lldb_compat && qemu_loglevel_mask(CPU_LOG_TB_CPU)) { 11178b453a2bSTaylor Simpson ctx->base.is_jmp = DISAS_TOO_MANY; 11188b453a2bSTaylor Simpson } 11198b453a2bSTaylor Simpson } 11208b453a2bSTaylor Simpson } 11218b453a2bSTaylor Simpson 11228b453a2bSTaylor Simpson static void hexagon_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) 11238b453a2bSTaylor Simpson { 11248b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 11258b453a2bSTaylor Simpson 11268b453a2bSTaylor Simpson switch (ctx->base.is_jmp) { 11278b453a2bSTaylor Simpson case DISAS_TOO_MANY: 11288b453a2bSTaylor Simpson gen_exec_counters(ctx); 11298b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], ctx->base.pc_next); 11308b453a2bSTaylor Simpson tcg_gen_exit_tb(NULL, 0); 11318b453a2bSTaylor Simpson break; 11328b453a2bSTaylor Simpson case DISAS_NORETURN: 11338b453a2bSTaylor Simpson break; 11348b453a2bSTaylor Simpson default: 11358b453a2bSTaylor Simpson g_assert_not_reached(); 11368b453a2bSTaylor Simpson } 11378b453a2bSTaylor Simpson } 11388b453a2bSTaylor Simpson 11398eb806a7SRichard Henderson static void hexagon_tr_disas_log(const DisasContextBase *dcbase, 11408eb806a7SRichard Henderson CPUState *cpu, FILE *logfile) 11418b453a2bSTaylor Simpson { 11428eb806a7SRichard Henderson fprintf(logfile, "IN: %s\n", lookup_symbol(dcbase->pc_first)); 11438eb806a7SRichard Henderson target_disas(logfile, cpu, dcbase->pc_first, dcbase->tb->size); 11448b453a2bSTaylor Simpson } 11458b453a2bSTaylor Simpson 11468b453a2bSTaylor Simpson 11478b453a2bSTaylor Simpson static const TranslatorOps hexagon_tr_ops = { 11488b453a2bSTaylor Simpson .init_disas_context = hexagon_tr_init_disas_context, 11498b453a2bSTaylor Simpson .tb_start = hexagon_tr_tb_start, 11508b453a2bSTaylor Simpson .insn_start = hexagon_tr_insn_start, 11518b453a2bSTaylor Simpson .translate_insn = hexagon_tr_translate_packet, 11528b453a2bSTaylor Simpson .tb_stop = hexagon_tr_tb_stop, 11538b453a2bSTaylor Simpson .disas_log = hexagon_tr_disas_log, 11548b453a2bSTaylor Simpson }; 11558b453a2bSTaylor Simpson 1156597f9b2dSRichard Henderson void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, 1157306c8721SRichard Henderson target_ulong pc, void *host_pc) 11588b453a2bSTaylor Simpson { 11598b453a2bSTaylor Simpson DisasContext ctx; 11608b453a2bSTaylor Simpson 1161306c8721SRichard Henderson translator_loop(cs, tb, max_insns, pc, host_pc, 1162306c8721SRichard Henderson &hexagon_tr_ops, &ctx.base); 11638b453a2bSTaylor Simpson } 11648b453a2bSTaylor Simpson 11658b453a2bSTaylor Simpson #define NAME_LEN 64 11668b453a2bSTaylor Simpson static char reg_written_names[TOTAL_PER_THREAD_REGS][NAME_LEN]; 11678b453a2bSTaylor Simpson static char store_addr_names[STORES_MAX][NAME_LEN]; 11688b453a2bSTaylor Simpson static char store_width_names[STORES_MAX][NAME_LEN]; 11698b453a2bSTaylor Simpson static char store_val32_names[STORES_MAX][NAME_LEN]; 11708b453a2bSTaylor Simpson static char store_val64_names[STORES_MAX][NAME_LEN]; 1171a82dd548STaylor Simpson static char vstore_addr_names[VSTORES_MAX][NAME_LEN]; 1172a82dd548STaylor Simpson static char vstore_size_names[VSTORES_MAX][NAME_LEN]; 1173a82dd548STaylor Simpson static char vstore_pending_names[VSTORES_MAX][NAME_LEN]; 11748b453a2bSTaylor Simpson 11758b453a2bSTaylor Simpson void hexagon_translate_init(void) 11768b453a2bSTaylor Simpson { 11778b453a2bSTaylor Simpson int i; 11788b453a2bSTaylor Simpson 11798b453a2bSTaylor Simpson opcode_init(); 11808b453a2bSTaylor Simpson 11818b453a2bSTaylor Simpson for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) { 1182ad75a51eSRichard Henderson hex_gpr[i] = tcg_global_mem_new(tcg_env, 11838b453a2bSTaylor Simpson offsetof(CPUHexagonState, gpr[i]), 11848b453a2bSTaylor Simpson hexagon_regnames[i]); 11858b453a2bSTaylor Simpson 118685580a65STaylor Simpson if (HEX_DEBUG) { 11878b453a2bSTaylor Simpson snprintf(reg_written_names[i], NAME_LEN, "reg_written_%s", 11888b453a2bSTaylor Simpson hexagon_regnames[i]); 1189ad75a51eSRichard Henderson hex_reg_written[i] = tcg_global_mem_new(tcg_env, 11908b453a2bSTaylor Simpson offsetof(CPUHexagonState, reg_written[i]), 11918b453a2bSTaylor Simpson reg_written_names[i]); 119285580a65STaylor Simpson } 11938b453a2bSTaylor Simpson } 1194ad75a51eSRichard Henderson hex_new_value_usr = tcg_global_mem_new(tcg_env, 11956aa4f1d1STaylor Simpson offsetof(CPUHexagonState, new_value_usr), "new_value_usr"); 11966aa4f1d1STaylor Simpson 11978b453a2bSTaylor Simpson for (i = 0; i < NUM_PREGS; i++) { 1198ad75a51eSRichard Henderson hex_pred[i] = tcg_global_mem_new(tcg_env, 11998b453a2bSTaylor Simpson offsetof(CPUHexagonState, pred[i]), 12008b453a2bSTaylor Simpson hexagon_prednames[i]); 12018b453a2bSTaylor Simpson } 1202ad75a51eSRichard Henderson hex_slot_cancelled = tcg_global_mem_new(tcg_env, 12038b453a2bSTaylor Simpson offsetof(CPUHexagonState, slot_cancelled), "slot_cancelled"); 1204ad75a51eSRichard Henderson hex_llsc_addr = tcg_global_mem_new(tcg_env, 12058b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_addr), "llsc_addr"); 1206ad75a51eSRichard Henderson hex_llsc_val = tcg_global_mem_new(tcg_env, 12078b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_val), "llsc_val"); 1208ad75a51eSRichard Henderson hex_llsc_val_i64 = tcg_global_mem_new_i64(tcg_env, 12098b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_val_i64), "llsc_val_i64"); 12108b453a2bSTaylor Simpson for (i = 0; i < STORES_MAX; i++) { 12118b453a2bSTaylor Simpson snprintf(store_addr_names[i], NAME_LEN, "store_addr_%d", i); 1212ad75a51eSRichard Henderson hex_store_addr[i] = tcg_global_mem_new(tcg_env, 12138b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].va), 12148b453a2bSTaylor Simpson store_addr_names[i]); 12158b453a2bSTaylor Simpson 12168b453a2bSTaylor Simpson snprintf(store_width_names[i], NAME_LEN, "store_width_%d", i); 1217ad75a51eSRichard Henderson hex_store_width[i] = tcg_global_mem_new(tcg_env, 12188b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].width), 12198b453a2bSTaylor Simpson store_width_names[i]); 12208b453a2bSTaylor Simpson 12218b453a2bSTaylor Simpson snprintf(store_val32_names[i], NAME_LEN, "store_val32_%d", i); 1222ad75a51eSRichard Henderson hex_store_val32[i] = tcg_global_mem_new(tcg_env, 12238b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].data32), 12248b453a2bSTaylor Simpson store_val32_names[i]); 12258b453a2bSTaylor Simpson 12268b453a2bSTaylor Simpson snprintf(store_val64_names[i], NAME_LEN, "store_val64_%d", i); 1227ad75a51eSRichard Henderson hex_store_val64[i] = tcg_global_mem_new_i64(tcg_env, 12288b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].data64), 12298b453a2bSTaylor Simpson store_val64_names[i]); 12308b453a2bSTaylor Simpson } 1231*20c34a92SBrian Cain for (i = 0; i < VSTORES_MAX; i++) { 1232a82dd548STaylor Simpson snprintf(vstore_addr_names[i], NAME_LEN, "vstore_addr_%d", i); 1233ad75a51eSRichard Henderson hex_vstore_addr[i] = tcg_global_mem_new(tcg_env, 1234a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore[i].va), 1235a82dd548STaylor Simpson vstore_addr_names[i]); 1236a82dd548STaylor Simpson 1237a82dd548STaylor Simpson snprintf(vstore_size_names[i], NAME_LEN, "vstore_size_%d", i); 1238ad75a51eSRichard Henderson hex_vstore_size[i] = tcg_global_mem_new(tcg_env, 1239a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore[i].size), 1240a82dd548STaylor Simpson vstore_size_names[i]); 1241a82dd548STaylor Simpson 1242a82dd548STaylor Simpson snprintf(vstore_pending_names[i], NAME_LEN, "vstore_pending_%d", i); 1243ad75a51eSRichard Henderson hex_vstore_pending[i] = tcg_global_mem_new(tcg_env, 1244a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore_pending[i]), 1245a82dd548STaylor Simpson vstore_pending_names[i]); 1246a82dd548STaylor Simpson } 12478b453a2bSTaylor Simpson } 1248