target/hexagon/translate.h

   1 /*
   2  *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef HEXAGON_TRANSLATE_H
  19 #define HEXAGON_TRANSLATE_H
  20
  21 #include "qemu/bitmap.h"
  22 #include "cpu.h"
  23 #include "exec/translator.h"
  24 #include "tcg/tcg-op.h"
  25 #include "internal.h"
  26
  27 typedef struct DisasContext {
  28     DisasContextBase base;
  29     uint32_t mem_idx;
  30     uint32_t num_packets;
  31     uint32_t num_insns;
  32     int reg_log[REG_WRITES_MAX];
  33     int reg_log_idx;
  34     DECLARE_BITMAP(regs_written, TOTAL_PER_THREAD_REGS);
  35     int preg_log[PRED_WRITES_MAX];
  36     int preg_log_idx;
  37     uint8_t store_width[STORES_MAX];
  38     uint8_t s1_store_processed;
  39 } DisasContext;
  40
  41 static inline void ctx_log_reg_write(DisasContext *ctx, int rnum)
  42 {
  43 #if HEX_DEBUG
  44     if (test_bit(rnum, ctx->regs_written)) {
  45         HEX_DEBUG_LOG("WARNING: Multiple writes to r%d\n", rnum);
  46     }
  47 #endif
  48     ctx->reg_log[ctx->reg_log_idx] = rnum;
  49     ctx->reg_log_idx++;
  50     set_bit(rnum, ctx->regs_written);
  51 }
  52
  53 static inline void ctx_log_reg_write_pair(DisasContext *ctx, int rnum)
  54 {
  55     ctx_log_reg_write(ctx, rnum);
  56     ctx_log_reg_write(ctx, rnum + 1);
  57 }
  58
  59 static inline void ctx_log_pred_write(DisasContext *ctx, int pnum)
  60 {
  61     ctx->preg_log[ctx->preg_log_idx] = pnum;
  62     ctx->preg_log_idx++;
  63 }
  64
  65 static inline bool is_preloaded(DisasContext *ctx, int num)
  66 {
  67     return test_bit(num, ctx->regs_written);
  68 }
  69
  70 extern TCGv hex_gpr[TOTAL_PER_THREAD_REGS];
  71 extern TCGv hex_pred[NUM_PREGS];
  72 extern TCGv hex_next_PC;
  73 extern TCGv hex_this_PC;
  74 extern TCGv hex_slot_cancelled;
  75 extern TCGv hex_branch_taken;
  76 extern TCGv hex_new_value[TOTAL_PER_THREAD_REGS];
  77 extern TCGv hex_reg_written[TOTAL_PER_THREAD_REGS];
  78 extern TCGv hex_new_pred_value[NUM_PREGS];
  79 extern TCGv hex_pred_written;
  80 extern TCGv hex_store_addr[STORES_MAX];
  81 extern TCGv hex_store_width[STORES_MAX];
  82 extern TCGv hex_store_val32[STORES_MAX];
  83 extern TCGv_i64 hex_store_val64[STORES_MAX];
  84 extern TCGv hex_dczero_addr;
  85 extern TCGv hex_llsc_addr;
  86 extern TCGv hex_llsc_val;
  87 extern TCGv_i64 hex_llsc_val_i64;
  88
  89 void gen_exception(int excp);
  90 void gen_exception_debug(void);
  91
  92 void process_store(DisasContext *ctx, Packet *pkt, int slot_num);
  93 #endif