18b453a2bSTaylor Simpson /* 28b453a2bSTaylor Simpson * Copyright(c) 2019-2021 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" 238b453a2bSTaylor Simpson #include "exec/cpu_ldst.h" 248b453a2bSTaylor Simpson #include "exec/log.h" 258b453a2bSTaylor Simpson #include "internal.h" 268b453a2bSTaylor Simpson #include "attribs.h" 278b453a2bSTaylor Simpson #include "insn.h" 288b453a2bSTaylor Simpson #include "decode.h" 298b453a2bSTaylor Simpson #include "translate.h" 308b453a2bSTaylor Simpson #include "printinsn.h" 318b453a2bSTaylor Simpson 328b453a2bSTaylor Simpson TCGv hex_gpr[TOTAL_PER_THREAD_REGS]; 338b453a2bSTaylor Simpson TCGv hex_pred[NUM_PREGS]; 348b453a2bSTaylor Simpson TCGv hex_next_PC; 358b453a2bSTaylor Simpson TCGv hex_this_PC; 368b453a2bSTaylor Simpson TCGv hex_slot_cancelled; 378b453a2bSTaylor Simpson TCGv hex_branch_taken; 388b453a2bSTaylor Simpson TCGv hex_new_value[TOTAL_PER_THREAD_REGS]; 398b453a2bSTaylor Simpson TCGv hex_reg_written[TOTAL_PER_THREAD_REGS]; 408b453a2bSTaylor Simpson TCGv hex_new_pred_value[NUM_PREGS]; 418b453a2bSTaylor Simpson TCGv hex_pred_written; 428b453a2bSTaylor Simpson TCGv hex_store_addr[STORES_MAX]; 438b453a2bSTaylor Simpson TCGv hex_store_width[STORES_MAX]; 448b453a2bSTaylor Simpson TCGv hex_store_val32[STORES_MAX]; 458b453a2bSTaylor Simpson TCGv_i64 hex_store_val64[STORES_MAX]; 468b453a2bSTaylor Simpson TCGv hex_pkt_has_store_s1; 478b453a2bSTaylor Simpson TCGv hex_dczero_addr; 488b453a2bSTaylor Simpson TCGv hex_llsc_addr; 498b453a2bSTaylor Simpson TCGv hex_llsc_val; 508b453a2bSTaylor Simpson TCGv_i64 hex_llsc_val_i64; 51a82dd548STaylor Simpson TCGv hex_VRegs_updated; 52a82dd548STaylor Simpson TCGv hex_QRegs_updated; 53a82dd548STaylor Simpson TCGv hex_vstore_addr[VSTORES_MAX]; 54a82dd548STaylor Simpson TCGv hex_vstore_size[VSTORES_MAX]; 55a82dd548STaylor Simpson TCGv hex_vstore_pending[VSTORES_MAX]; 568b453a2bSTaylor Simpson 578b453a2bSTaylor Simpson static const char * const hexagon_prednames[] = { 588b453a2bSTaylor Simpson "p0", "p1", "p2", "p3" 598b453a2bSTaylor Simpson }; 608b453a2bSTaylor Simpson 61a82dd548STaylor Simpson intptr_t ctx_future_vreg_off(DisasContext *ctx, int regnum, 62a82dd548STaylor Simpson int num, bool alloc_ok) 63a82dd548STaylor Simpson { 64a82dd548STaylor Simpson intptr_t offset; 65a82dd548STaylor Simpson 66a82dd548STaylor Simpson /* See if it is already allocated */ 67a82dd548STaylor Simpson for (int i = 0; i < ctx->future_vregs_idx; i++) { 68a82dd548STaylor Simpson if (ctx->future_vregs_num[i] == regnum) { 69a82dd548STaylor Simpson return offsetof(CPUHexagonState, future_VRegs[i]); 70a82dd548STaylor Simpson } 71a82dd548STaylor Simpson } 72a82dd548STaylor Simpson 73a82dd548STaylor Simpson g_assert(alloc_ok); 74a82dd548STaylor Simpson offset = offsetof(CPUHexagonState, future_VRegs[ctx->future_vregs_idx]); 75a82dd548STaylor Simpson for (int i = 0; i < num; i++) { 76a82dd548STaylor Simpson ctx->future_vregs_num[ctx->future_vregs_idx + i] = regnum++; 77a82dd548STaylor Simpson } 78a82dd548STaylor Simpson ctx->future_vregs_idx += num; 79a82dd548STaylor Simpson g_assert(ctx->future_vregs_idx <= VECTOR_TEMPS_MAX); 80a82dd548STaylor Simpson return offset; 81a82dd548STaylor Simpson } 82a82dd548STaylor Simpson 83a82dd548STaylor Simpson intptr_t ctx_tmp_vreg_off(DisasContext *ctx, int regnum, 84a82dd548STaylor Simpson int num, bool alloc_ok) 85a82dd548STaylor Simpson { 86a82dd548STaylor Simpson intptr_t offset; 87a82dd548STaylor Simpson 88a82dd548STaylor Simpson /* See if it is already allocated */ 89a82dd548STaylor Simpson for (int i = 0; i < ctx->tmp_vregs_idx; i++) { 90a82dd548STaylor Simpson if (ctx->tmp_vregs_num[i] == regnum) { 91a82dd548STaylor Simpson return offsetof(CPUHexagonState, tmp_VRegs[i]); 92a82dd548STaylor Simpson } 93a82dd548STaylor Simpson } 94a82dd548STaylor Simpson 95a82dd548STaylor Simpson g_assert(alloc_ok); 96a82dd548STaylor Simpson offset = offsetof(CPUHexagonState, tmp_VRegs[ctx->tmp_vregs_idx]); 97a82dd548STaylor Simpson for (int i = 0; i < num; i++) { 98a82dd548STaylor Simpson ctx->tmp_vregs_num[ctx->tmp_vregs_idx + i] = regnum++; 99a82dd548STaylor Simpson } 100a82dd548STaylor Simpson ctx->tmp_vregs_idx += num; 101a82dd548STaylor Simpson g_assert(ctx->tmp_vregs_idx <= VECTOR_TEMPS_MAX); 102a82dd548STaylor Simpson return offset; 103a82dd548STaylor Simpson } 104a82dd548STaylor Simpson 105743debbcSTaylor Simpson static void gen_exception_raw(int excp) 1068b453a2bSTaylor Simpson { 10723803bbeSPhilippe Mathieu-Daudé gen_helper_raise_exception(cpu_env, tcg_constant_i32(excp)); 1088b453a2bSTaylor Simpson } 1098b453a2bSTaylor Simpson 110743debbcSTaylor Simpson static void gen_exec_counters(DisasContext *ctx) 1118b453a2bSTaylor Simpson { 112743debbcSTaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_PKT_CNT], 113743debbcSTaylor Simpson hex_gpr[HEX_REG_QEMU_PKT_CNT], ctx->num_packets); 114743debbcSTaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_INSN_CNT], 115743debbcSTaylor Simpson hex_gpr[HEX_REG_QEMU_INSN_CNT], ctx->num_insns); 116a82dd548STaylor Simpson tcg_gen_addi_tl(hex_gpr[HEX_REG_QEMU_HVX_CNT], 117a82dd548STaylor Simpson hex_gpr[HEX_REG_QEMU_HVX_CNT], ctx->num_hvx_insns); 118743debbcSTaylor Simpson } 119743debbcSTaylor Simpson 120743debbcSTaylor Simpson static void gen_end_tb(DisasContext *ctx) 121743debbcSTaylor Simpson { 122743debbcSTaylor Simpson gen_exec_counters(ctx); 123743debbcSTaylor Simpson tcg_gen_mov_tl(hex_gpr[HEX_REG_PC], hex_next_PC); 124743debbcSTaylor Simpson tcg_gen_exit_tb(NULL, 0); 125743debbcSTaylor Simpson ctx->base.is_jmp = DISAS_NORETURN; 126743debbcSTaylor Simpson } 127743debbcSTaylor Simpson 128743debbcSTaylor Simpson static void gen_exception_end_tb(DisasContext *ctx, int excp) 129743debbcSTaylor Simpson { 130743debbcSTaylor Simpson gen_exec_counters(ctx); 131743debbcSTaylor Simpson tcg_gen_mov_tl(hex_gpr[HEX_REG_PC], hex_next_PC); 132743debbcSTaylor Simpson gen_exception_raw(excp); 133743debbcSTaylor Simpson ctx->base.is_jmp = DISAS_NORETURN; 134743debbcSTaylor Simpson 1358b453a2bSTaylor Simpson } 1368b453a2bSTaylor Simpson 1378b453a2bSTaylor Simpson #define PACKET_BUFFER_LEN 1028 1388b453a2bSTaylor Simpson static void print_pkt(Packet *pkt) 1398b453a2bSTaylor Simpson { 1408b453a2bSTaylor Simpson GString *buf = g_string_sized_new(PACKET_BUFFER_LEN); 1418b453a2bSTaylor Simpson snprint_a_pkt_debug(buf, pkt); 1428b453a2bSTaylor Simpson HEX_DEBUG_LOG("%s", buf->str); 1438b453a2bSTaylor Simpson g_string_free(buf, true); 1448b453a2bSTaylor Simpson } 14585580a65STaylor Simpson #define HEX_DEBUG_PRINT_PKT(pkt) \ 14685580a65STaylor Simpson do { \ 14785580a65STaylor Simpson if (HEX_DEBUG) { \ 14885580a65STaylor Simpson print_pkt(pkt); \ 14985580a65STaylor Simpson } \ 15085580a65STaylor Simpson } while (0) 1518b453a2bSTaylor Simpson 1528b453a2bSTaylor Simpson static int read_packet_words(CPUHexagonState *env, DisasContext *ctx, 1538b453a2bSTaylor Simpson uint32_t words[]) 1548b453a2bSTaylor Simpson { 1558b453a2bSTaylor Simpson bool found_end = false; 1568b453a2bSTaylor Simpson int nwords, max_words; 1578b453a2bSTaylor Simpson 1588b453a2bSTaylor Simpson memset(words, 0, PACKET_WORDS_MAX * sizeof(uint32_t)); 1598b453a2bSTaylor Simpson for (nwords = 0; !found_end && nwords < PACKET_WORDS_MAX; nwords++) { 160a27c100cSTaylor Simpson words[nwords] = 1614e116893SIlya Leoshkevich translator_ldl(env, &ctx->base, 1624e116893SIlya Leoshkevich ctx->base.pc_next + nwords * sizeof(uint32_t)); 1638b453a2bSTaylor Simpson found_end = is_packet_end(words[nwords]); 1648b453a2bSTaylor Simpson } 1658b453a2bSTaylor Simpson if (!found_end) { 1668b453a2bSTaylor Simpson /* Read too many words without finding the end */ 1678b453a2bSTaylor Simpson return 0; 1688b453a2bSTaylor Simpson } 1698b453a2bSTaylor Simpson 1708b453a2bSTaylor Simpson /* Check for page boundary crossing */ 1718b453a2bSTaylor Simpson max_words = -(ctx->base.pc_next | TARGET_PAGE_MASK) / sizeof(uint32_t); 1728b453a2bSTaylor Simpson if (nwords > max_words) { 1738b453a2bSTaylor Simpson /* We can only cross a page boundary at the beginning of a TB */ 1748b453a2bSTaylor Simpson g_assert(ctx->base.num_insns == 1); 1758b453a2bSTaylor Simpson } 1768b453a2bSTaylor Simpson 1778b453a2bSTaylor Simpson HEX_DEBUG_LOG("decode_packet: pc = 0x%x\n", ctx->base.pc_next); 1788b453a2bSTaylor Simpson HEX_DEBUG_LOG(" words = { "); 1798b453a2bSTaylor Simpson for (int i = 0; i < nwords; i++) { 1808b453a2bSTaylor Simpson HEX_DEBUG_LOG("0x%x, ", words[i]); 1818b453a2bSTaylor Simpson } 1828b453a2bSTaylor Simpson HEX_DEBUG_LOG("}\n"); 1838b453a2bSTaylor Simpson 1848b453a2bSTaylor Simpson return nwords; 1858b453a2bSTaylor Simpson } 1868b453a2bSTaylor Simpson 1878b453a2bSTaylor Simpson static bool check_for_attrib(Packet *pkt, int attrib) 1888b453a2bSTaylor Simpson { 1898b453a2bSTaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 1908b453a2bSTaylor Simpson if (GET_ATTRIB(pkt->insn[i].opcode, attrib)) { 1918b453a2bSTaylor Simpson return true; 1928b453a2bSTaylor Simpson } 1938b453a2bSTaylor Simpson } 1948b453a2bSTaylor Simpson return false; 1958b453a2bSTaylor Simpson } 1968b453a2bSTaylor Simpson 1978b453a2bSTaylor Simpson static bool need_pc(Packet *pkt) 1988b453a2bSTaylor Simpson { 1998b453a2bSTaylor Simpson return check_for_attrib(pkt, A_IMPLICIT_READS_PC); 2008b453a2bSTaylor Simpson } 2018b453a2bSTaylor Simpson 2028b453a2bSTaylor Simpson static bool need_slot_cancelled(Packet *pkt) 2038b453a2bSTaylor Simpson { 2048b453a2bSTaylor Simpson return check_for_attrib(pkt, A_CONDEXEC); 2058b453a2bSTaylor Simpson } 2068b453a2bSTaylor Simpson 2078b453a2bSTaylor Simpson static bool need_pred_written(Packet *pkt) 2088b453a2bSTaylor Simpson { 2098b453a2bSTaylor Simpson return check_for_attrib(pkt, A_WRITES_PRED_REG); 2108b453a2bSTaylor Simpson } 2118b453a2bSTaylor Simpson 2128b453a2bSTaylor Simpson static void gen_start_packet(DisasContext *ctx, Packet *pkt) 2138b453a2bSTaylor Simpson { 2148b453a2bSTaylor Simpson target_ulong next_PC = ctx->base.pc_next + pkt->encod_pkt_size_in_bytes; 2158b453a2bSTaylor Simpson int i; 2168b453a2bSTaylor Simpson 2178b453a2bSTaylor Simpson /* Clear out the disassembly context */ 2188b453a2bSTaylor Simpson ctx->reg_log_idx = 0; 2198b453a2bSTaylor Simpson bitmap_zero(ctx->regs_written, TOTAL_PER_THREAD_REGS); 2208b453a2bSTaylor Simpson ctx->preg_log_idx = 0; 2216c677c60STaylor Simpson bitmap_zero(ctx->pregs_written, NUM_PREGS); 222a82dd548STaylor Simpson ctx->future_vregs_idx = 0; 223a82dd548STaylor Simpson ctx->tmp_vregs_idx = 0; 224a82dd548STaylor Simpson ctx->vreg_log_idx = 0; 225a82dd548STaylor Simpson bitmap_zero(ctx->vregs_updated_tmp, NUM_VREGS); 226a82dd548STaylor Simpson bitmap_zero(ctx->vregs_updated, NUM_VREGS); 227a82dd548STaylor Simpson bitmap_zero(ctx->vregs_select, NUM_VREGS); 228a82dd548STaylor Simpson ctx->qreg_log_idx = 0; 2298b453a2bSTaylor Simpson for (i = 0; i < STORES_MAX; i++) { 2308b453a2bSTaylor Simpson ctx->store_width[i] = 0; 2318b453a2bSTaylor Simpson } 2328b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_pkt_has_store_s1, pkt->pkt_has_store_s1); 23392cfa25fSTaylor Simpson ctx->s1_store_processed = false; 234a82dd548STaylor Simpson ctx->pre_commit = true; 2358b453a2bSTaylor Simpson 23685580a65STaylor Simpson if (HEX_DEBUG) { 2378b453a2bSTaylor Simpson /* Handy place to set a breakpoint before the packet executes */ 2388b453a2bSTaylor Simpson gen_helper_debug_start_packet(cpu_env); 2398b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_this_PC, ctx->base.pc_next); 24085580a65STaylor Simpson } 2418b453a2bSTaylor Simpson 2428b453a2bSTaylor Simpson /* Initialize the runtime state for packet semantics */ 2438b453a2bSTaylor Simpson if (need_pc(pkt)) { 2448b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], ctx->base.pc_next); 2458b453a2bSTaylor Simpson } 2468b453a2bSTaylor Simpson if (need_slot_cancelled(pkt)) { 2478b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_slot_cancelled, 0); 2488b453a2bSTaylor Simpson } 2498b453a2bSTaylor Simpson if (pkt->pkt_has_cof) { 2508b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_branch_taken, 0); 2518b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_next_PC, next_PC); 2528b453a2bSTaylor Simpson } 2538b453a2bSTaylor Simpson if (need_pred_written(pkt)) { 2548b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_pred_written, 0); 2558b453a2bSTaylor Simpson } 256a82dd548STaylor Simpson 257a82dd548STaylor Simpson if (pkt->pkt_has_hvx) { 258a82dd548STaylor Simpson tcg_gen_movi_tl(hex_VRegs_updated, 0); 259a82dd548STaylor Simpson tcg_gen_movi_tl(hex_QRegs_updated, 0); 260a82dd548STaylor Simpson } 261a82dd548STaylor Simpson } 262a82dd548STaylor Simpson 263a82dd548STaylor Simpson bool is_gather_store_insn(Insn *insn, Packet *pkt) 264a82dd548STaylor Simpson { 265a82dd548STaylor Simpson if (GET_ATTRIB(insn->opcode, A_CVI_NEW) && 266a82dd548STaylor Simpson insn->new_value_producer_slot == 1) { 267a82dd548STaylor Simpson /* Look for gather instruction */ 268a82dd548STaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 269a82dd548STaylor Simpson Insn *in = &pkt->insn[i]; 270a82dd548STaylor Simpson if (GET_ATTRIB(in->opcode, A_CVI_GATHER) && in->slot == 1) { 271a82dd548STaylor Simpson return true; 272a82dd548STaylor Simpson } 273a82dd548STaylor Simpson } 274a82dd548STaylor Simpson } 275a82dd548STaylor Simpson return false; 2768b453a2bSTaylor Simpson } 2778b453a2bSTaylor Simpson 2788b453a2bSTaylor Simpson /* 2798b453a2bSTaylor Simpson * The LOG_*_WRITE macros mark most of the writes in a packet 2808b453a2bSTaylor Simpson * However, there are some implicit writes marked as attributes 2818b453a2bSTaylor Simpson * of the applicable instructions. 2828b453a2bSTaylor Simpson */ 2838b453a2bSTaylor Simpson static void mark_implicit_reg_write(DisasContext *ctx, Insn *insn, 2848b453a2bSTaylor Simpson int attrib, int rnum) 2858b453a2bSTaylor Simpson { 2868b453a2bSTaylor Simpson if (GET_ATTRIB(insn->opcode, attrib)) { 287b9dd6ff9STaylor Simpson /* 288b9dd6ff9STaylor Simpson * USR is used to set overflow and FP exceptions, 289b9dd6ff9STaylor Simpson * so treat it as conditional 290b9dd6ff9STaylor Simpson */ 291b9dd6ff9STaylor Simpson bool is_predicated = GET_ATTRIB(insn->opcode, A_CONDEXEC) || 292b9dd6ff9STaylor Simpson rnum == HEX_REG_USR; 2938b453a2bSTaylor Simpson if (is_predicated && !is_preloaded(ctx, rnum)) { 2948b453a2bSTaylor Simpson tcg_gen_mov_tl(hex_new_value[rnum], hex_gpr[rnum]); 2958b453a2bSTaylor Simpson } 2968b453a2bSTaylor Simpson 2978b453a2bSTaylor Simpson ctx_log_reg_write(ctx, rnum); 2988b453a2bSTaylor Simpson } 2998b453a2bSTaylor Simpson } 3008b453a2bSTaylor Simpson 3018b453a2bSTaylor Simpson static void mark_implicit_pred_write(DisasContext *ctx, Insn *insn, 3028b453a2bSTaylor Simpson int attrib, int pnum) 3038b453a2bSTaylor Simpson { 3048b453a2bSTaylor Simpson if (GET_ATTRIB(insn->opcode, attrib)) { 3058b453a2bSTaylor Simpson ctx_log_pred_write(ctx, pnum); 3068b453a2bSTaylor Simpson } 3078b453a2bSTaylor Simpson } 3088b453a2bSTaylor Simpson 3096c677c60STaylor Simpson static void mark_implicit_reg_writes(DisasContext *ctx, Insn *insn) 3108b453a2bSTaylor Simpson { 3118b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_FP, HEX_REG_FP); 3128b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_SP, HEX_REG_SP); 3138b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_LR, HEX_REG_LR); 3148b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_LC0, HEX_REG_LC0); 3158b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_SA0, HEX_REG_SA0); 3168b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_LC1, HEX_REG_LC1); 3178b453a2bSTaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_SA1, HEX_REG_SA1); 318b9dd6ff9STaylor Simpson mark_implicit_reg_write(ctx, insn, A_IMPLICIT_WRITES_USR, HEX_REG_USR); 319b9dd6ff9STaylor Simpson mark_implicit_reg_write(ctx, insn, A_FPOP, HEX_REG_USR); 3206c677c60STaylor Simpson } 3218b453a2bSTaylor Simpson 3226c677c60STaylor Simpson static void mark_implicit_pred_writes(DisasContext *ctx, Insn *insn) 3236c677c60STaylor Simpson { 3248b453a2bSTaylor Simpson mark_implicit_pred_write(ctx, insn, A_IMPLICIT_WRITES_P0, 0); 3258b453a2bSTaylor Simpson mark_implicit_pred_write(ctx, insn, A_IMPLICIT_WRITES_P1, 1); 3268b453a2bSTaylor Simpson mark_implicit_pred_write(ctx, insn, A_IMPLICIT_WRITES_P2, 2); 3278b453a2bSTaylor Simpson mark_implicit_pred_write(ctx, insn, A_IMPLICIT_WRITES_P3, 3); 3288b453a2bSTaylor Simpson } 3298b453a2bSTaylor Simpson 3308b453a2bSTaylor Simpson static void gen_insn(CPUHexagonState *env, DisasContext *ctx, 3318b453a2bSTaylor Simpson Insn *insn, Packet *pkt) 3328b453a2bSTaylor Simpson { 3338b453a2bSTaylor Simpson if (insn->generate) { 3346c677c60STaylor Simpson mark_implicit_reg_writes(ctx, insn); 3358b453a2bSTaylor Simpson insn->generate(env, ctx, insn, pkt); 3366c677c60STaylor Simpson mark_implicit_pred_writes(ctx, insn); 3378b453a2bSTaylor Simpson } else { 338743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_OPCODE); 3398b453a2bSTaylor Simpson } 3408b453a2bSTaylor Simpson } 3418b453a2bSTaylor Simpson 3428b453a2bSTaylor Simpson /* 3438b453a2bSTaylor Simpson * Helpers for generating the packet commit 3448b453a2bSTaylor Simpson */ 3458b453a2bSTaylor Simpson static void gen_reg_writes(DisasContext *ctx) 3468b453a2bSTaylor Simpson { 3478b453a2bSTaylor Simpson int i; 3488b453a2bSTaylor Simpson 3498b453a2bSTaylor Simpson for (i = 0; i < ctx->reg_log_idx; i++) { 3508b453a2bSTaylor Simpson int reg_num = ctx->reg_log[i]; 3518b453a2bSTaylor Simpson 3528b453a2bSTaylor Simpson tcg_gen_mov_tl(hex_gpr[reg_num], hex_new_value[reg_num]); 3538b453a2bSTaylor Simpson } 3548b453a2bSTaylor Simpson } 3558b453a2bSTaylor Simpson 3568b453a2bSTaylor Simpson static void gen_pred_writes(DisasContext *ctx, Packet *pkt) 3578b453a2bSTaylor Simpson { 3588b453a2bSTaylor Simpson int i; 3598b453a2bSTaylor Simpson 3608b453a2bSTaylor Simpson /* Early exit if the log is empty */ 3618b453a2bSTaylor Simpson if (!ctx->preg_log_idx) { 3628b453a2bSTaylor Simpson return; 3638b453a2bSTaylor Simpson } 3648b453a2bSTaylor Simpson 3658b453a2bSTaylor Simpson /* 3668b453a2bSTaylor Simpson * Only endloop instructions will conditionally 3678b453a2bSTaylor Simpson * write a predicate. If there are no endloop 3688b453a2bSTaylor Simpson * instructions, we can use the non-conditional 3698b453a2bSTaylor Simpson * write of the predicates. 3708b453a2bSTaylor Simpson */ 3718b453a2bSTaylor Simpson if (pkt->pkt_has_endloop) { 37223803bbeSPhilippe Mathieu-Daudé TCGv zero = tcg_constant_tl(0); 3738b453a2bSTaylor Simpson TCGv pred_written = tcg_temp_new(); 3748b453a2bSTaylor Simpson for (i = 0; i < ctx->preg_log_idx; i++) { 3758b453a2bSTaylor Simpson int pred_num = ctx->preg_log[i]; 3768b453a2bSTaylor Simpson 3778b453a2bSTaylor Simpson tcg_gen_andi_tl(pred_written, hex_pred_written, 1 << pred_num); 3788b453a2bSTaylor Simpson tcg_gen_movcond_tl(TCG_COND_NE, hex_pred[pred_num], 3798b453a2bSTaylor Simpson pred_written, zero, 3808b453a2bSTaylor Simpson hex_new_pred_value[pred_num], 3818b453a2bSTaylor Simpson hex_pred[pred_num]); 3828b453a2bSTaylor Simpson } 3838b453a2bSTaylor Simpson tcg_temp_free(pred_written); 3848b453a2bSTaylor Simpson } else { 3858b453a2bSTaylor Simpson for (i = 0; i < ctx->preg_log_idx; i++) { 3868b453a2bSTaylor Simpson int pred_num = ctx->preg_log[i]; 3878b453a2bSTaylor Simpson tcg_gen_mov_tl(hex_pred[pred_num], hex_new_pred_value[pred_num]); 38885580a65STaylor Simpson if (HEX_DEBUG) { 3898b453a2bSTaylor Simpson /* Do this so HELPER(debug_commit_end) will know */ 39085580a65STaylor Simpson tcg_gen_ori_tl(hex_pred_written, hex_pred_written, 39185580a65STaylor Simpson 1 << pred_num); 39285580a65STaylor Simpson } 3938b453a2bSTaylor Simpson } 3948b453a2bSTaylor Simpson } 3958b453a2bSTaylor Simpson } 3968b453a2bSTaylor Simpson 397a27c100cSTaylor Simpson static void gen_check_store_width(DisasContext *ctx, int slot_num) 3988b453a2bSTaylor Simpson { 39985580a65STaylor Simpson if (HEX_DEBUG) { 40023803bbeSPhilippe Mathieu-Daudé TCGv slot = tcg_constant_tl(slot_num); 40123803bbeSPhilippe Mathieu-Daudé TCGv check = tcg_constant_tl(ctx->store_width[slot_num]); 4028b453a2bSTaylor Simpson gen_helper_debug_check_store_width(cpu_env, slot, check); 40385580a65STaylor Simpson } 404a27c100cSTaylor Simpson } 4058b453a2bSTaylor Simpson 4068b453a2bSTaylor Simpson static bool slot_is_predicated(Packet *pkt, int slot_num) 4078b453a2bSTaylor Simpson { 4088b453a2bSTaylor Simpson for (int i = 0; i < pkt->num_insns; i++) { 4098b453a2bSTaylor Simpson if (pkt->insn[i].slot == slot_num) { 4108b453a2bSTaylor Simpson return GET_ATTRIB(pkt->insn[i].opcode, A_CONDEXEC); 4118b453a2bSTaylor Simpson } 4128b453a2bSTaylor Simpson } 4138b453a2bSTaylor Simpson /* If we get to here, we didn't find an instruction in the requested slot */ 4148b453a2bSTaylor Simpson g_assert_not_reached(); 4158b453a2bSTaylor Simpson } 4168b453a2bSTaylor Simpson 4178b453a2bSTaylor Simpson void process_store(DisasContext *ctx, Packet *pkt, int slot_num) 4188b453a2bSTaylor Simpson { 4198b453a2bSTaylor Simpson bool is_predicated = slot_is_predicated(pkt, slot_num); 4208b453a2bSTaylor Simpson TCGLabel *label_end = NULL; 4218b453a2bSTaylor Simpson 4228b453a2bSTaylor Simpson /* 4238b453a2bSTaylor Simpson * We may have already processed this store 4248b453a2bSTaylor Simpson * See CHECK_NOSHUF in macros.h 4258b453a2bSTaylor Simpson */ 4268b453a2bSTaylor Simpson if (slot_num == 1 && ctx->s1_store_processed) { 4278b453a2bSTaylor Simpson return; 4288b453a2bSTaylor Simpson } 42992cfa25fSTaylor Simpson ctx->s1_store_processed = true; 4308b453a2bSTaylor Simpson 4318b453a2bSTaylor Simpson if (is_predicated) { 4328b453a2bSTaylor Simpson TCGv cancelled = tcg_temp_new(); 4338b453a2bSTaylor Simpson label_end = gen_new_label(); 4348b453a2bSTaylor Simpson 4358b453a2bSTaylor Simpson /* Don't do anything if the slot was cancelled */ 4368b453a2bSTaylor Simpson tcg_gen_extract_tl(cancelled, hex_slot_cancelled, slot_num, 1); 4378b453a2bSTaylor Simpson tcg_gen_brcondi_tl(TCG_COND_NE, cancelled, 0, label_end); 4388b453a2bSTaylor Simpson tcg_temp_free(cancelled); 4398b453a2bSTaylor Simpson } 4408b453a2bSTaylor Simpson { 4418b453a2bSTaylor Simpson TCGv address = tcg_temp_local_new(); 4428b453a2bSTaylor Simpson tcg_gen_mov_tl(address, hex_store_addr[slot_num]); 4438b453a2bSTaylor Simpson 4448b453a2bSTaylor Simpson /* 4458b453a2bSTaylor Simpson * If we know the width from the DisasContext, we can 4468b453a2bSTaylor Simpson * generate much cleaner code. 4478b453a2bSTaylor Simpson * Unfortunately, not all instructions execute the fSTORE 4488b453a2bSTaylor Simpson * macro during code generation. Anything that uses the 4498b453a2bSTaylor Simpson * generic helper will have this problem. Instructions 4508b453a2bSTaylor Simpson * that use fWRAP to generate proper TCG code will be OK. 4518b453a2bSTaylor Simpson */ 4528b453a2bSTaylor Simpson switch (ctx->store_width[slot_num]) { 4538b453a2bSTaylor Simpson case 1: 454a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 4558b453a2bSTaylor Simpson tcg_gen_qemu_st8(hex_store_val32[slot_num], 4568b453a2bSTaylor Simpson hex_store_addr[slot_num], 4578b453a2bSTaylor Simpson ctx->mem_idx); 4588b453a2bSTaylor Simpson break; 4598b453a2bSTaylor Simpson case 2: 460a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 4618b453a2bSTaylor Simpson tcg_gen_qemu_st16(hex_store_val32[slot_num], 4628b453a2bSTaylor Simpson hex_store_addr[slot_num], 4638b453a2bSTaylor Simpson ctx->mem_idx); 4648b453a2bSTaylor Simpson break; 4658b453a2bSTaylor Simpson case 4: 466a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 4678b453a2bSTaylor Simpson tcg_gen_qemu_st32(hex_store_val32[slot_num], 4688b453a2bSTaylor Simpson hex_store_addr[slot_num], 4698b453a2bSTaylor Simpson ctx->mem_idx); 4708b453a2bSTaylor Simpson break; 4718b453a2bSTaylor Simpson case 8: 472a27c100cSTaylor Simpson gen_check_store_width(ctx, slot_num); 4738b453a2bSTaylor Simpson tcg_gen_qemu_st64(hex_store_val64[slot_num], 4748b453a2bSTaylor Simpson hex_store_addr[slot_num], 4758b453a2bSTaylor Simpson ctx->mem_idx); 4768b453a2bSTaylor Simpson break; 4778b453a2bSTaylor Simpson default: 4788b453a2bSTaylor Simpson { 4798b453a2bSTaylor Simpson /* 4808b453a2bSTaylor Simpson * If we get to here, we don't know the width at 4818b453a2bSTaylor Simpson * TCG generation time, we'll use a helper to 4828b453a2bSTaylor Simpson * avoid branching based on the width at runtime. 4838b453a2bSTaylor Simpson */ 48423803bbeSPhilippe Mathieu-Daudé TCGv slot = tcg_constant_tl(slot_num); 4858b453a2bSTaylor Simpson gen_helper_commit_store(cpu_env, slot); 4868b453a2bSTaylor Simpson } 4878b453a2bSTaylor Simpson } 4888b453a2bSTaylor Simpson tcg_temp_free(address); 4898b453a2bSTaylor Simpson } 4908b453a2bSTaylor Simpson if (is_predicated) { 4918b453a2bSTaylor Simpson gen_set_label(label_end); 4928b453a2bSTaylor Simpson } 4938b453a2bSTaylor Simpson } 4948b453a2bSTaylor Simpson 4958b453a2bSTaylor Simpson static void process_store_log(DisasContext *ctx, Packet *pkt) 4968b453a2bSTaylor Simpson { 4978b453a2bSTaylor Simpson /* 4988b453a2bSTaylor Simpson * When a packet has two stores, the hardware processes 499c23b5764STaylor Simpson * slot 1 and then slot 0. This will be important when 5008b453a2bSTaylor Simpson * the memory accesses overlap. 5018b453a2bSTaylor Simpson */ 5028b453a2bSTaylor Simpson if (pkt->pkt_has_store_s1 && !pkt->pkt_has_dczeroa) { 5038b453a2bSTaylor Simpson process_store(ctx, pkt, 1); 5048b453a2bSTaylor Simpson } 5058b453a2bSTaylor Simpson if (pkt->pkt_has_store_s0 && !pkt->pkt_has_dczeroa) { 5068b453a2bSTaylor Simpson process_store(ctx, pkt, 0); 5078b453a2bSTaylor Simpson } 5088b453a2bSTaylor Simpson } 5098b453a2bSTaylor Simpson 5108b453a2bSTaylor Simpson /* Zero out a 32-bit cache line */ 5118b453a2bSTaylor Simpson static void process_dczeroa(DisasContext *ctx, Packet *pkt) 5128b453a2bSTaylor Simpson { 5138b453a2bSTaylor Simpson if (pkt->pkt_has_dczeroa) { 5148b453a2bSTaylor Simpson /* Store 32 bytes of zero starting at (addr & ~0x1f) */ 5158b453a2bSTaylor Simpson TCGv addr = tcg_temp_new(); 51623803bbeSPhilippe Mathieu-Daudé TCGv_i64 zero = tcg_constant_i64(0); 5178b453a2bSTaylor Simpson 5188b453a2bSTaylor Simpson tcg_gen_andi_tl(addr, hex_dczero_addr, ~0x1f); 5198b453a2bSTaylor Simpson tcg_gen_qemu_st64(zero, addr, ctx->mem_idx); 5208b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 5218b453a2bSTaylor Simpson tcg_gen_qemu_st64(zero, addr, ctx->mem_idx); 5228b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 5238b453a2bSTaylor Simpson tcg_gen_qemu_st64(zero, addr, ctx->mem_idx); 5248b453a2bSTaylor Simpson tcg_gen_addi_tl(addr, addr, 8); 5258b453a2bSTaylor Simpson tcg_gen_qemu_st64(zero, addr, ctx->mem_idx); 5268b453a2bSTaylor Simpson 5278b453a2bSTaylor Simpson tcg_temp_free(addr); 5288b453a2bSTaylor Simpson } 5298b453a2bSTaylor Simpson } 5308b453a2bSTaylor Simpson 531a82dd548STaylor Simpson static bool pkt_has_hvx_store(Packet *pkt) 532a82dd548STaylor Simpson { 533a82dd548STaylor Simpson int i; 534a82dd548STaylor Simpson for (i = 0; i < pkt->num_insns; i++) { 535a82dd548STaylor Simpson int opcode = pkt->insn[i].opcode; 536a82dd548STaylor Simpson if (GET_ATTRIB(opcode, A_CVI) && GET_ATTRIB(opcode, A_STORE)) { 537a82dd548STaylor Simpson return true; 538a82dd548STaylor Simpson } 539a82dd548STaylor Simpson } 540a82dd548STaylor Simpson return false; 541a82dd548STaylor Simpson } 542a82dd548STaylor Simpson 543a82dd548STaylor Simpson static void gen_commit_hvx(DisasContext *ctx, Packet *pkt) 544a82dd548STaylor Simpson { 545a82dd548STaylor Simpson int i; 546a82dd548STaylor Simpson 547a82dd548STaylor Simpson /* 548a82dd548STaylor Simpson * for (i = 0; i < ctx->vreg_log_idx; i++) { 549a82dd548STaylor Simpson * int rnum = ctx->vreg_log[i]; 550a82dd548STaylor Simpson * if (ctx->vreg_is_predicated[i]) { 551a82dd548STaylor Simpson * if (env->VRegs_updated & (1 << rnum)) { 552a82dd548STaylor Simpson * env->VRegs[rnum] = env->future_VRegs[rnum]; 553a82dd548STaylor Simpson * } 554a82dd548STaylor Simpson * } else { 555a82dd548STaylor Simpson * env->VRegs[rnum] = env->future_VRegs[rnum]; 556a82dd548STaylor Simpson * } 557a82dd548STaylor Simpson * } 558a82dd548STaylor Simpson */ 559a82dd548STaylor Simpson for (i = 0; i < ctx->vreg_log_idx; i++) { 560a82dd548STaylor Simpson int rnum = ctx->vreg_log[i]; 561a82dd548STaylor Simpson bool is_predicated = ctx->vreg_is_predicated[i]; 562a82dd548STaylor Simpson intptr_t dstoff = offsetof(CPUHexagonState, VRegs[rnum]); 563a82dd548STaylor Simpson intptr_t srcoff = ctx_future_vreg_off(ctx, rnum, 1, false); 564a82dd548STaylor Simpson size_t size = sizeof(MMVector); 565a82dd548STaylor Simpson 566a82dd548STaylor Simpson if (is_predicated) { 567a82dd548STaylor Simpson TCGv cmp = tcg_temp_new(); 568a82dd548STaylor Simpson TCGLabel *label_skip = gen_new_label(); 569a82dd548STaylor Simpson 570a82dd548STaylor Simpson tcg_gen_andi_tl(cmp, hex_VRegs_updated, 1 << rnum); 571a82dd548STaylor Simpson tcg_gen_brcondi_tl(TCG_COND_EQ, cmp, 0, label_skip); 572a82dd548STaylor Simpson tcg_temp_free(cmp); 573a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 574a82dd548STaylor Simpson gen_set_label(label_skip); 575a82dd548STaylor Simpson } else { 576a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 577a82dd548STaylor Simpson } 578a82dd548STaylor Simpson } 579a82dd548STaylor Simpson 580a82dd548STaylor Simpson /* 581a82dd548STaylor Simpson * for (i = 0; i < ctx->qreg_log_idx; i++) { 582a82dd548STaylor Simpson * int rnum = ctx->qreg_log[i]; 583a82dd548STaylor Simpson * if (ctx->qreg_is_predicated[i]) { 584a82dd548STaylor Simpson * if (env->QRegs_updated) & (1 << rnum)) { 585a82dd548STaylor Simpson * env->QRegs[rnum] = env->future_QRegs[rnum]; 586a82dd548STaylor Simpson * } 587a82dd548STaylor Simpson * } else { 588a82dd548STaylor Simpson * env->QRegs[rnum] = env->future_QRegs[rnum]; 589a82dd548STaylor Simpson * } 590a82dd548STaylor Simpson * } 591a82dd548STaylor Simpson */ 592a82dd548STaylor Simpson for (i = 0; i < ctx->qreg_log_idx; i++) { 593a82dd548STaylor Simpson int rnum = ctx->qreg_log[i]; 594a82dd548STaylor Simpson bool is_predicated = ctx->qreg_is_predicated[i]; 595a82dd548STaylor Simpson intptr_t dstoff = offsetof(CPUHexagonState, QRegs[rnum]); 596a82dd548STaylor Simpson intptr_t srcoff = offsetof(CPUHexagonState, future_QRegs[rnum]); 597a82dd548STaylor Simpson size_t size = sizeof(MMQReg); 598a82dd548STaylor Simpson 599a82dd548STaylor Simpson if (is_predicated) { 600a82dd548STaylor Simpson TCGv cmp = tcg_temp_new(); 601a82dd548STaylor Simpson TCGLabel *label_skip = gen_new_label(); 602a82dd548STaylor Simpson 603a82dd548STaylor Simpson tcg_gen_andi_tl(cmp, hex_QRegs_updated, 1 << rnum); 604a82dd548STaylor Simpson tcg_gen_brcondi_tl(TCG_COND_EQ, cmp, 0, label_skip); 605a82dd548STaylor Simpson tcg_temp_free(cmp); 606a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 607a82dd548STaylor Simpson gen_set_label(label_skip); 608a82dd548STaylor Simpson } else { 609a82dd548STaylor Simpson tcg_gen_gvec_mov(MO_64, dstoff, srcoff, size, size); 610a82dd548STaylor Simpson } 611a82dd548STaylor Simpson } 612a82dd548STaylor Simpson 613a82dd548STaylor Simpson if (pkt_has_hvx_store(pkt)) { 614a82dd548STaylor Simpson gen_helper_commit_hvx_stores(cpu_env); 615a82dd548STaylor Simpson } 616a82dd548STaylor Simpson } 617a82dd548STaylor Simpson 6188b453a2bSTaylor Simpson static void update_exec_counters(DisasContext *ctx, Packet *pkt) 6198b453a2bSTaylor Simpson { 6208b453a2bSTaylor Simpson int num_insns = pkt->num_insns; 6218b453a2bSTaylor Simpson int num_real_insns = 0; 622a82dd548STaylor Simpson int num_hvx_insns = 0; 6238b453a2bSTaylor Simpson 6248b453a2bSTaylor Simpson for (int i = 0; i < num_insns; i++) { 6258b453a2bSTaylor Simpson if (!pkt->insn[i].is_endloop && 6268b453a2bSTaylor Simpson !pkt->insn[i].part1 && 6278b453a2bSTaylor Simpson !GET_ATTRIB(pkt->insn[i].opcode, A_IT_NOP)) { 6288b453a2bSTaylor Simpson num_real_insns++; 6298b453a2bSTaylor Simpson } 630a82dd548STaylor Simpson if (GET_ATTRIB(pkt->insn[i].opcode, A_CVI)) { 631a82dd548STaylor Simpson num_hvx_insns++; 632a82dd548STaylor Simpson } 6338b453a2bSTaylor Simpson } 6348b453a2bSTaylor Simpson 6358b453a2bSTaylor Simpson ctx->num_packets++; 6368b453a2bSTaylor Simpson ctx->num_insns += num_real_insns; 637a82dd548STaylor Simpson ctx->num_hvx_insns += num_hvx_insns; 6388b453a2bSTaylor Simpson } 6398b453a2bSTaylor Simpson 640a82dd548STaylor Simpson static void gen_commit_packet(CPUHexagonState *env, DisasContext *ctx, 641a82dd548STaylor Simpson Packet *pkt) 6428b453a2bSTaylor Simpson { 643c23b5764STaylor Simpson /* 644c23b5764STaylor Simpson * If there is more than one store in a packet, make sure they are all OK 645c23b5764STaylor Simpson * before proceeding with the rest of the packet commit. 646c23b5764STaylor Simpson * 647c23b5764STaylor Simpson * dczeroa has to be the only store operation in the packet, so we go 648c23b5764STaylor Simpson * ahead and process that first. 649c23b5764STaylor Simpson * 650a82dd548STaylor Simpson * When there is an HVX store, there can also be a scalar store in either 651a82dd548STaylor Simpson * slot 0 or slot1, so we create a mask for the helper to indicate what 652a82dd548STaylor Simpson * work to do. 653a82dd548STaylor Simpson * 654c23b5764STaylor Simpson * When there are two scalar stores, we probe the one in slot 0. 655c23b5764STaylor Simpson * 656c23b5764STaylor Simpson * Note that we don't call the probe helper for packets with only one 657c23b5764STaylor Simpson * store. Therefore, we call process_store_log before anything else 658c23b5764STaylor Simpson * involved in committing the packet. 659c23b5764STaylor Simpson */ 660c23b5764STaylor Simpson bool has_store_s0 = pkt->pkt_has_store_s0; 661c23b5764STaylor Simpson bool has_store_s1 = (pkt->pkt_has_store_s1 && !ctx->s1_store_processed); 662a82dd548STaylor Simpson bool has_hvx_store = pkt_has_hvx_store(pkt); 663c23b5764STaylor Simpson if (pkt->pkt_has_dczeroa) { 664c23b5764STaylor Simpson /* 665c23b5764STaylor Simpson * The dczeroa will be the store in slot 0, check that we don't have 666a82dd548STaylor Simpson * a store in slot 1 or an HVX store. 667c23b5764STaylor Simpson */ 668a82dd548STaylor Simpson g_assert(has_store_s0 && !has_store_s1 && !has_hvx_store); 669c23b5764STaylor Simpson process_dczeroa(ctx, pkt); 670a82dd548STaylor Simpson } else if (has_hvx_store) { 671a82dd548STaylor Simpson TCGv mem_idx = tcg_constant_tl(ctx->mem_idx); 672a82dd548STaylor Simpson 673a82dd548STaylor Simpson if (!has_store_s0 && !has_store_s1) { 674a82dd548STaylor Simpson gen_helper_probe_hvx_stores(cpu_env, mem_idx); 675a82dd548STaylor Simpson } else { 676a82dd548STaylor Simpson int mask = 0; 677a82dd548STaylor Simpson TCGv mask_tcgv; 678a82dd548STaylor Simpson 679a82dd548STaylor Simpson if (has_store_s0) { 680a82dd548STaylor Simpson mask |= (1 << 0); 681a82dd548STaylor Simpson } 682a82dd548STaylor Simpson if (has_store_s1) { 683a82dd548STaylor Simpson mask |= (1 << 1); 684a82dd548STaylor Simpson } 685a82dd548STaylor Simpson if (has_hvx_store) { 686a82dd548STaylor Simpson mask |= (1 << 2); 687a82dd548STaylor Simpson } 688a82dd548STaylor Simpson mask_tcgv = tcg_constant_tl(mask); 689a82dd548STaylor Simpson gen_helper_probe_pkt_scalar_hvx_stores(cpu_env, mask_tcgv, mem_idx); 690a82dd548STaylor Simpson } 691c23b5764STaylor Simpson } else if (has_store_s0 && has_store_s1) { 692c23b5764STaylor Simpson /* 693c23b5764STaylor Simpson * process_store_log will execute the slot 1 store first, 694c23b5764STaylor Simpson * so we only have to probe the store in slot 0 695c23b5764STaylor Simpson */ 696f448397aSTaylor Simpson TCGv mem_idx = tcg_constant_tl(ctx->mem_idx); 697c23b5764STaylor Simpson gen_helper_probe_pkt_scalar_store_s0(cpu_env, mem_idx); 698c23b5764STaylor Simpson } 699c23b5764STaylor Simpson 700c23b5764STaylor Simpson process_store_log(ctx, pkt); 701c23b5764STaylor Simpson 7028b453a2bSTaylor Simpson gen_reg_writes(ctx); 7038b453a2bSTaylor Simpson gen_pred_writes(ctx, pkt); 704a82dd548STaylor Simpson if (pkt->pkt_has_hvx) { 705a82dd548STaylor Simpson gen_commit_hvx(ctx, pkt); 706a82dd548STaylor Simpson } 7078b453a2bSTaylor Simpson update_exec_counters(ctx, pkt); 70885580a65STaylor Simpson if (HEX_DEBUG) { 7098b453a2bSTaylor Simpson TCGv has_st0 = 71023803bbeSPhilippe Mathieu-Daudé tcg_constant_tl(pkt->pkt_has_store_s0 && !pkt->pkt_has_dczeroa); 7118b453a2bSTaylor Simpson TCGv has_st1 = 71223803bbeSPhilippe Mathieu-Daudé tcg_constant_tl(pkt->pkt_has_store_s1 && !pkt->pkt_has_dczeroa); 7138b453a2bSTaylor Simpson 7148b453a2bSTaylor Simpson /* Handy place to set a breakpoint at the end of execution */ 7158b453a2bSTaylor Simpson gen_helper_debug_commit_end(cpu_env, has_st0, has_st1); 7168b453a2bSTaylor Simpson } 7178b453a2bSTaylor Simpson 718a82dd548STaylor Simpson if (pkt->vhist_insn != NULL) { 719a82dd548STaylor Simpson ctx->pre_commit = false; 720a82dd548STaylor Simpson pkt->vhist_insn->generate(env, ctx, pkt->vhist_insn, pkt); 721a82dd548STaylor Simpson } 722a82dd548STaylor Simpson 7238b453a2bSTaylor Simpson if (pkt->pkt_has_cof) { 724743debbcSTaylor Simpson gen_end_tb(ctx); 7258b453a2bSTaylor Simpson } 7268b453a2bSTaylor Simpson } 7278b453a2bSTaylor Simpson 7288b453a2bSTaylor Simpson static void decode_and_translate_packet(CPUHexagonState *env, DisasContext *ctx) 7298b453a2bSTaylor Simpson { 7308b453a2bSTaylor Simpson uint32_t words[PACKET_WORDS_MAX]; 7318b453a2bSTaylor Simpson int nwords; 7328b453a2bSTaylor Simpson Packet pkt; 7338b453a2bSTaylor Simpson int i; 7348b453a2bSTaylor Simpson 7358b453a2bSTaylor Simpson nwords = read_packet_words(env, ctx, words); 7368b453a2bSTaylor Simpson if (!nwords) { 737743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_PACKET); 7388b453a2bSTaylor Simpson return; 7398b453a2bSTaylor Simpson } 7408b453a2bSTaylor Simpson 7418b453a2bSTaylor Simpson if (decode_packet(nwords, words, &pkt, false) > 0) { 7428b453a2bSTaylor Simpson HEX_DEBUG_PRINT_PKT(&pkt); 7438b453a2bSTaylor Simpson gen_start_packet(ctx, &pkt); 7448b453a2bSTaylor Simpson for (i = 0; i < pkt.num_insns; i++) { 7458b453a2bSTaylor Simpson gen_insn(env, ctx, &pkt.insn[i], &pkt); 7468b453a2bSTaylor Simpson } 747a82dd548STaylor Simpson gen_commit_packet(env, ctx, &pkt); 7488b453a2bSTaylor Simpson ctx->base.pc_next += pkt.encod_pkt_size_in_bytes; 7498b453a2bSTaylor Simpson } else { 750743debbcSTaylor Simpson gen_exception_end_tb(ctx, HEX_EXCP_INVALID_PACKET); 7518b453a2bSTaylor Simpson } 7528b453a2bSTaylor Simpson } 7538b453a2bSTaylor Simpson 7548b453a2bSTaylor Simpson static void hexagon_tr_init_disas_context(DisasContextBase *dcbase, 7558b453a2bSTaylor Simpson CPUState *cs) 7568b453a2bSTaylor Simpson { 7578b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 7588b453a2bSTaylor Simpson 7598b453a2bSTaylor Simpson ctx->mem_idx = MMU_USER_IDX; 7608b453a2bSTaylor Simpson ctx->num_packets = 0; 7618b453a2bSTaylor Simpson ctx->num_insns = 0; 762a82dd548STaylor Simpson ctx->num_hvx_insns = 0; 7638b453a2bSTaylor Simpson } 7648b453a2bSTaylor Simpson 7658b453a2bSTaylor Simpson static void hexagon_tr_tb_start(DisasContextBase *db, CPUState *cpu) 7668b453a2bSTaylor Simpson { 7678b453a2bSTaylor Simpson } 7688b453a2bSTaylor Simpson 7698b453a2bSTaylor Simpson static void hexagon_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) 7708b453a2bSTaylor Simpson { 7718b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 7728b453a2bSTaylor Simpson 7738b453a2bSTaylor Simpson tcg_gen_insn_start(ctx->base.pc_next); 7748b453a2bSTaylor Simpson } 7758b453a2bSTaylor Simpson 7768b453a2bSTaylor Simpson static bool pkt_crosses_page(CPUHexagonState *env, DisasContext *ctx) 7778b453a2bSTaylor Simpson { 7788b453a2bSTaylor Simpson target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK; 7798b453a2bSTaylor Simpson bool found_end = false; 7808b453a2bSTaylor Simpson int nwords; 7818b453a2bSTaylor Simpson 7828b453a2bSTaylor Simpson for (nwords = 0; !found_end && nwords < PACKET_WORDS_MAX; nwords++) { 7838b453a2bSTaylor Simpson uint32_t word = cpu_ldl_code(env, 7848b453a2bSTaylor Simpson ctx->base.pc_next + nwords * sizeof(uint32_t)); 7858b453a2bSTaylor Simpson found_end = is_packet_end(word); 7868b453a2bSTaylor Simpson } 7878b453a2bSTaylor Simpson uint32_t next_ptr = ctx->base.pc_next + nwords * sizeof(uint32_t); 7888b453a2bSTaylor Simpson return found_end && next_ptr - page_start >= TARGET_PAGE_SIZE; 7898b453a2bSTaylor Simpson } 7908b453a2bSTaylor Simpson 7918b453a2bSTaylor Simpson static void hexagon_tr_translate_packet(DisasContextBase *dcbase, CPUState *cpu) 7928b453a2bSTaylor Simpson { 7938b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 7948b453a2bSTaylor Simpson CPUHexagonState *env = cpu->env_ptr; 7958b453a2bSTaylor Simpson 7968b453a2bSTaylor Simpson decode_and_translate_packet(env, ctx); 7978b453a2bSTaylor Simpson 7988b453a2bSTaylor Simpson if (ctx->base.is_jmp == DISAS_NEXT) { 7998b453a2bSTaylor Simpson target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK; 8008b453a2bSTaylor Simpson target_ulong bytes_max = PACKET_WORDS_MAX * sizeof(target_ulong); 8018b453a2bSTaylor Simpson 8028b453a2bSTaylor Simpson if (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE || 8038b453a2bSTaylor Simpson (ctx->base.pc_next - page_start >= TARGET_PAGE_SIZE - bytes_max && 8048b453a2bSTaylor Simpson pkt_crosses_page(env, ctx))) { 8058b453a2bSTaylor Simpson ctx->base.is_jmp = DISAS_TOO_MANY; 8068b453a2bSTaylor Simpson } 8078b453a2bSTaylor Simpson 8088b453a2bSTaylor Simpson /* 8098b453a2bSTaylor Simpson * The CPU log is used to compare against LLDB single stepping, 8108b453a2bSTaylor Simpson * so end the TLB after every packet. 8118b453a2bSTaylor Simpson */ 8127d9ab202STaylor Simpson HexagonCPU *hex_cpu = env_archcpu(env); 8138b453a2bSTaylor Simpson if (hex_cpu->lldb_compat && qemu_loglevel_mask(CPU_LOG_TB_CPU)) { 8148b453a2bSTaylor Simpson ctx->base.is_jmp = DISAS_TOO_MANY; 8158b453a2bSTaylor Simpson } 8168b453a2bSTaylor Simpson } 8178b453a2bSTaylor Simpson } 8188b453a2bSTaylor Simpson 8198b453a2bSTaylor Simpson static void hexagon_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) 8208b453a2bSTaylor Simpson { 8218b453a2bSTaylor Simpson DisasContext *ctx = container_of(dcbase, DisasContext, base); 8228b453a2bSTaylor Simpson 8238b453a2bSTaylor Simpson switch (ctx->base.is_jmp) { 8248b453a2bSTaylor Simpson case DISAS_TOO_MANY: 8258b453a2bSTaylor Simpson gen_exec_counters(ctx); 8268b453a2bSTaylor Simpson tcg_gen_movi_tl(hex_gpr[HEX_REG_PC], ctx->base.pc_next); 8278b453a2bSTaylor Simpson tcg_gen_exit_tb(NULL, 0); 8288b453a2bSTaylor Simpson break; 8298b453a2bSTaylor Simpson case DISAS_NORETURN: 8308b453a2bSTaylor Simpson break; 8318b453a2bSTaylor Simpson default: 8328b453a2bSTaylor Simpson g_assert_not_reached(); 8338b453a2bSTaylor Simpson } 8348b453a2bSTaylor Simpson } 8358b453a2bSTaylor Simpson 836*8eb806a7SRichard Henderson static void hexagon_tr_disas_log(const DisasContextBase *dcbase, 837*8eb806a7SRichard Henderson CPUState *cpu, FILE *logfile) 8388b453a2bSTaylor Simpson { 839*8eb806a7SRichard Henderson fprintf(logfile, "IN: %s\n", lookup_symbol(dcbase->pc_first)); 840*8eb806a7SRichard Henderson target_disas(logfile, cpu, dcbase->pc_first, dcbase->tb->size); 8418b453a2bSTaylor Simpson } 8428b453a2bSTaylor Simpson 8438b453a2bSTaylor Simpson 8448b453a2bSTaylor Simpson static const TranslatorOps hexagon_tr_ops = { 8458b453a2bSTaylor Simpson .init_disas_context = hexagon_tr_init_disas_context, 8468b453a2bSTaylor Simpson .tb_start = hexagon_tr_tb_start, 8478b453a2bSTaylor Simpson .insn_start = hexagon_tr_insn_start, 8488b453a2bSTaylor Simpson .translate_insn = hexagon_tr_translate_packet, 8498b453a2bSTaylor Simpson .tb_stop = hexagon_tr_tb_stop, 8508b453a2bSTaylor Simpson .disas_log = hexagon_tr_disas_log, 8518b453a2bSTaylor Simpson }; 8528b453a2bSTaylor Simpson 8538b453a2bSTaylor Simpson void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) 8548b453a2bSTaylor Simpson { 8558b453a2bSTaylor Simpson DisasContext ctx; 8568b453a2bSTaylor Simpson 8578b453a2bSTaylor Simpson translator_loop(&hexagon_tr_ops, &ctx.base, cs, tb, max_insns); 8588b453a2bSTaylor Simpson } 8598b453a2bSTaylor Simpson 8608b453a2bSTaylor Simpson #define NAME_LEN 64 8618b453a2bSTaylor Simpson static char new_value_names[TOTAL_PER_THREAD_REGS][NAME_LEN]; 8628b453a2bSTaylor Simpson static char reg_written_names[TOTAL_PER_THREAD_REGS][NAME_LEN]; 8638b453a2bSTaylor Simpson static char new_pred_value_names[NUM_PREGS][NAME_LEN]; 8648b453a2bSTaylor Simpson static char store_addr_names[STORES_MAX][NAME_LEN]; 8658b453a2bSTaylor Simpson static char store_width_names[STORES_MAX][NAME_LEN]; 8668b453a2bSTaylor Simpson static char store_val32_names[STORES_MAX][NAME_LEN]; 8678b453a2bSTaylor Simpson static char store_val64_names[STORES_MAX][NAME_LEN]; 868a82dd548STaylor Simpson static char vstore_addr_names[VSTORES_MAX][NAME_LEN]; 869a82dd548STaylor Simpson static char vstore_size_names[VSTORES_MAX][NAME_LEN]; 870a82dd548STaylor Simpson static char vstore_pending_names[VSTORES_MAX][NAME_LEN]; 8718b453a2bSTaylor Simpson 8728b453a2bSTaylor Simpson void hexagon_translate_init(void) 8738b453a2bSTaylor Simpson { 8748b453a2bSTaylor Simpson int i; 8758b453a2bSTaylor Simpson 8768b453a2bSTaylor Simpson opcode_init(); 8778b453a2bSTaylor Simpson 8788b453a2bSTaylor Simpson for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) { 8798b453a2bSTaylor Simpson hex_gpr[i] = tcg_global_mem_new(cpu_env, 8808b453a2bSTaylor Simpson offsetof(CPUHexagonState, gpr[i]), 8818b453a2bSTaylor Simpson hexagon_regnames[i]); 8828b453a2bSTaylor Simpson 8838b453a2bSTaylor Simpson snprintf(new_value_names[i], NAME_LEN, "new_%s", hexagon_regnames[i]); 8848b453a2bSTaylor Simpson hex_new_value[i] = tcg_global_mem_new(cpu_env, 8858b453a2bSTaylor Simpson offsetof(CPUHexagonState, new_value[i]), 8868b453a2bSTaylor Simpson new_value_names[i]); 8878b453a2bSTaylor Simpson 88885580a65STaylor Simpson if (HEX_DEBUG) { 8898b453a2bSTaylor Simpson snprintf(reg_written_names[i], NAME_LEN, "reg_written_%s", 8908b453a2bSTaylor Simpson hexagon_regnames[i]); 8918b453a2bSTaylor Simpson hex_reg_written[i] = tcg_global_mem_new(cpu_env, 8928b453a2bSTaylor Simpson offsetof(CPUHexagonState, reg_written[i]), 8938b453a2bSTaylor Simpson reg_written_names[i]); 89485580a65STaylor Simpson } 8958b453a2bSTaylor Simpson } 8968b453a2bSTaylor Simpson for (i = 0; i < NUM_PREGS; i++) { 8978b453a2bSTaylor Simpson hex_pred[i] = tcg_global_mem_new(cpu_env, 8988b453a2bSTaylor Simpson offsetof(CPUHexagonState, pred[i]), 8998b453a2bSTaylor Simpson hexagon_prednames[i]); 9008b453a2bSTaylor Simpson 9018b453a2bSTaylor Simpson snprintf(new_pred_value_names[i], NAME_LEN, "new_pred_%s", 9028b453a2bSTaylor Simpson hexagon_prednames[i]); 9038b453a2bSTaylor Simpson hex_new_pred_value[i] = tcg_global_mem_new(cpu_env, 9048b453a2bSTaylor Simpson offsetof(CPUHexagonState, new_pred_value[i]), 9058b453a2bSTaylor Simpson new_pred_value_names[i]); 9068b453a2bSTaylor Simpson } 9078b453a2bSTaylor Simpson hex_pred_written = tcg_global_mem_new(cpu_env, 9088b453a2bSTaylor Simpson offsetof(CPUHexagonState, pred_written), "pred_written"); 9098b453a2bSTaylor Simpson hex_next_PC = tcg_global_mem_new(cpu_env, 9108b453a2bSTaylor Simpson offsetof(CPUHexagonState, next_PC), "next_PC"); 9118b453a2bSTaylor Simpson hex_this_PC = tcg_global_mem_new(cpu_env, 9128b453a2bSTaylor Simpson offsetof(CPUHexagonState, this_PC), "this_PC"); 9138b453a2bSTaylor Simpson hex_slot_cancelled = tcg_global_mem_new(cpu_env, 9148b453a2bSTaylor Simpson offsetof(CPUHexagonState, slot_cancelled), "slot_cancelled"); 9158b453a2bSTaylor Simpson hex_branch_taken = tcg_global_mem_new(cpu_env, 9168b453a2bSTaylor Simpson offsetof(CPUHexagonState, branch_taken), "branch_taken"); 9178b453a2bSTaylor Simpson hex_pkt_has_store_s1 = tcg_global_mem_new(cpu_env, 9188b453a2bSTaylor Simpson offsetof(CPUHexagonState, pkt_has_store_s1), "pkt_has_store_s1"); 9198b453a2bSTaylor Simpson hex_dczero_addr = tcg_global_mem_new(cpu_env, 9208b453a2bSTaylor Simpson offsetof(CPUHexagonState, dczero_addr), "dczero_addr"); 9218b453a2bSTaylor Simpson hex_llsc_addr = tcg_global_mem_new(cpu_env, 9228b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_addr), "llsc_addr"); 9238b453a2bSTaylor Simpson hex_llsc_val = tcg_global_mem_new(cpu_env, 9248b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_val), "llsc_val"); 9258b453a2bSTaylor Simpson hex_llsc_val_i64 = tcg_global_mem_new_i64(cpu_env, 9268b453a2bSTaylor Simpson offsetof(CPUHexagonState, llsc_val_i64), "llsc_val_i64"); 927a82dd548STaylor Simpson hex_VRegs_updated = tcg_global_mem_new(cpu_env, 928a82dd548STaylor Simpson offsetof(CPUHexagonState, VRegs_updated), "VRegs_updated"); 929a82dd548STaylor Simpson hex_QRegs_updated = tcg_global_mem_new(cpu_env, 930a82dd548STaylor Simpson offsetof(CPUHexagonState, QRegs_updated), "QRegs_updated"); 9318b453a2bSTaylor Simpson for (i = 0; i < STORES_MAX; i++) { 9328b453a2bSTaylor Simpson snprintf(store_addr_names[i], NAME_LEN, "store_addr_%d", i); 9338b453a2bSTaylor Simpson hex_store_addr[i] = tcg_global_mem_new(cpu_env, 9348b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].va), 9358b453a2bSTaylor Simpson store_addr_names[i]); 9368b453a2bSTaylor Simpson 9378b453a2bSTaylor Simpson snprintf(store_width_names[i], NAME_LEN, "store_width_%d", i); 9388b453a2bSTaylor Simpson hex_store_width[i] = tcg_global_mem_new(cpu_env, 9398b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].width), 9408b453a2bSTaylor Simpson store_width_names[i]); 9418b453a2bSTaylor Simpson 9428b453a2bSTaylor Simpson snprintf(store_val32_names[i], NAME_LEN, "store_val32_%d", i); 9438b453a2bSTaylor Simpson hex_store_val32[i] = tcg_global_mem_new(cpu_env, 9448b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].data32), 9458b453a2bSTaylor Simpson store_val32_names[i]); 9468b453a2bSTaylor Simpson 9478b453a2bSTaylor Simpson snprintf(store_val64_names[i], NAME_LEN, "store_val64_%d", i); 9488b453a2bSTaylor Simpson hex_store_val64[i] = tcg_global_mem_new_i64(cpu_env, 9498b453a2bSTaylor Simpson offsetof(CPUHexagonState, mem_log_stores[i].data64), 9508b453a2bSTaylor Simpson store_val64_names[i]); 9518b453a2bSTaylor Simpson } 952a82dd548STaylor Simpson for (int i = 0; i < VSTORES_MAX; i++) { 953a82dd548STaylor Simpson snprintf(vstore_addr_names[i], NAME_LEN, "vstore_addr_%d", i); 954a82dd548STaylor Simpson hex_vstore_addr[i] = tcg_global_mem_new(cpu_env, 955a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore[i].va), 956a82dd548STaylor Simpson vstore_addr_names[i]); 957a82dd548STaylor Simpson 958a82dd548STaylor Simpson snprintf(vstore_size_names[i], NAME_LEN, "vstore_size_%d", i); 959a82dd548STaylor Simpson hex_vstore_size[i] = tcg_global_mem_new(cpu_env, 960a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore[i].size), 961a82dd548STaylor Simpson vstore_size_names[i]); 962a82dd548STaylor Simpson 963a82dd548STaylor Simpson snprintf(vstore_pending_names[i], NAME_LEN, "vstore_pending_%d", i); 964a82dd548STaylor Simpson hex_vstore_pending[i] = tcg_global_mem_new(cpu_env, 965a82dd548STaylor Simpson offsetof(CPUHexagonState, vstore_pending[i]), 966a82dd548STaylor Simpson vstore_pending_names[i]); 967a82dd548STaylor Simpson } 9688b453a2bSTaylor Simpson } 969