xref: /openbmc/qemu/target/hexagon/translate.h (revision 4d87fcdd)
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     DECLARE_BITMAP(pregs_written, NUM_PREGS);
38     uint8_t store_width[STORES_MAX];
39     bool s1_store_processed;
40 } DisasContext;
41 
42 static inline void ctx_log_reg_write(DisasContext *ctx, int rnum)
43 {
44     if (test_bit(rnum, ctx->regs_written)) {
45         HEX_DEBUG_LOG("WARNING: Multiple writes to r%d\n", rnum);
46     }
47     ctx->reg_log[ctx->reg_log_idx] = rnum;
48     ctx->reg_log_idx++;
49     set_bit(rnum, ctx->regs_written);
50 }
51 
52 static inline void ctx_log_reg_write_pair(DisasContext *ctx, int rnum)
53 {
54     ctx_log_reg_write(ctx, rnum);
55     ctx_log_reg_write(ctx, rnum + 1);
56 }
57 
58 static inline void ctx_log_pred_write(DisasContext *ctx, int pnum)
59 {
60     ctx->preg_log[ctx->preg_log_idx] = pnum;
61     ctx->preg_log_idx++;
62     set_bit(pnum, ctx->pregs_written);
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 process_store(DisasContext *ctx, Packet *pkt, int slot_num);
90 #endif
91