1 /* Collection of junk for CRIS. 2 Copyright (C) 2004-2023 Free Software Foundation, Inc. 3 Contributed by Axis Communications. 4 5 This file is part of the GNU simulators. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 /* For other arch:s, this file is described as a "collection of junk", so 21 let's collect some nice junk of our own. Keep it; it might be useful 22 some day! */ 23 24 #ifndef CRIS_SIM_H 25 #define CRIS_SIM_H 26 27 typedef struct { 28 /* Whether the branch for the current insn was taken. Placed first 29 here, in hope it'll get closer to the main simulator data. */ 30 USI branch_taken; 31 32 /* PC of the insn of the branch. */ 33 USI old_pc; 34 35 /* Static cycle count for all insns executed so far, including 36 non-context-specific stall cycles, for example when adding to PC. */ 37 uint64_t basic_cycle_count; 38 39 /* Stall cycles for unaligned access of memory operands. FIXME: 40 Should or should not include unaligned [PC+] operands? */ 41 uint64_t unaligned_mem_dword_count; 42 43 /* Context-specific stall cycles. */ 44 uint64_t memsrc_stall_count; 45 uint64_t memraw_stall_count; 46 uint64_t movemsrc_stall_count; 47 uint64_t movemaddr_stall_count; 48 uint64_t movemdst_stall_count; 49 uint64_t mulsrc_stall_count; 50 uint64_t jumpsrc_stall_count; 51 uint64_t branch_stall_count; 52 uint64_t jumptarget_stall_count; 53 54 /* What kind of target-specific trace to perform. */ 55 int flags; 56 57 /* Just the basic cycle count. */ 58 #define FLAG_CRIS_MISC_PROFILE_SIMPLE 1 59 60 /* Show unaligned accesses. */ 61 #define FLAG_CRIS_MISC_PROFILE_UNALIGNED 2 62 63 /* Show schedulable entities. */ 64 #define FLAG_CRIS_MISC_PROFILE_SCHEDULABLE 4 65 66 /* Show everything. */ 67 #define FLAG_CRIS_MISC_PROFILE_ALL \ 68 (FLAG_CRIS_MISC_PROFILE_SIMPLE \ 69 | FLAG_CRIS_MISC_PROFILE_UNALIGNED \ 70 | FLAG_CRIS_MISC_PROFILE_SCHEDULABLE) 71 72 /* Emit trace of each insn, xsim style. */ 73 #define FLAG_CRIS_MISC_PROFILE_XSIM_TRACE 8 74 75 #define N_CRISV32_BRANCH_PREDICTORS 256 76 unsigned char branch_predictors[N_CRISV32_BRANCH_PREDICTORS]; 77 78 } CRIS_MISC_PROFILE; 79 80 /* Handler prototypes for functions called from the CGEN description. */ 81 82 extern void cris_flush_simulator_decode_cache (SIM_CPU *, USI); 83 extern USI crisv10f_break_handler (SIM_CPU *, USI, USI); 84 extern USI crisv32f_break_handler (SIM_CPU *, USI, USI); 85 extern USI cris_break_13_handler (SIM_CPU *, USI, USI, USI, USI, USI, USI, 86 USI, USI); 87 extern char cris_have_900000xxif; 88 enum cris_unknown_syscall_action_type 89 { CRIS_USYSC_MSG_STOP, CRIS_USYSC_MSG_ENOSYS, CRIS_USYSC_QUIET_ENOSYS }; 90 extern enum cris_unknown_syscall_action_type cris_unknown_syscall_action; 91 enum cris_interrupt_type { CRIS_INT_NMI, CRIS_INT_RESET, CRIS_INT_INT }; 92 extern int crisv10deliver_interrupt (SIM_CPU *, 93 enum cris_interrupt_type, 94 unsigned int); 95 extern int crisv32deliver_interrupt (SIM_CPU *, 96 enum cris_interrupt_type, 97 unsigned int); 98 99 /* Using GNU syntax (not C99) so we can compile this on RH 6.2 100 (egcs-1.1.2/gcc-2.91.66). */ 101 #define cris_trace_printf(SD, CPU, FMT...) \ 102 do \ 103 { \ 104 if (TRACE_FILE (STATE_TRACE_DATA (SD)) != NULL) \ 105 fprintf (TRACE_FILE (CPU_TRACE_DATA (CPU)), FMT); \ 106 else \ 107 sim_io_printf (SD, FMT); \ 108 } \ 109 while (0) 110 111 #if WITH_PROFILE_MODEL_P 112 #define crisv32f_branch_taken(cpu, oldpc, newpc, taken) \ 113 do \ 114 { \ 115 CPU_CRIS_MISC_PROFILE (cpu)->old_pc = oldpc; \ 116 CPU_CRIS_MISC_PROFILE (cpu)->branch_taken = taken; \ 117 } \ 118 while (0) 119 #else 120 #define crisv32f_branch_taken(cpu, oldpc, newpc, taken) 121 #endif 122 123 #define crisv10f_branch_taken(cpu, oldpc, newpc, taken) 124 125 #define crisv32f_read_supr(cpu, index) \ 126 (cgen_rtx_error (current_cpu, \ 127 "Read of support register is unimplemented"), \ 128 0) 129 130 #define crisv32f_write_supr(cpu, index, val) \ 131 cgen_rtx_error (current_cpu, \ 132 "Write to support register is unimplemented") \ 133 134 #define crisv32f_rfg_handler(cpu, pc) \ 135 cgen_rtx_error (current_cpu, "RFG isn't implemented") 136 137 #define crisv32f_halt_handler(cpu, pc) \ 138 (cgen_rtx_error (current_cpu, "HALT isn't implemented"), 0) 139 140 #define crisv32f_fidxi_handler(cpu, pc, indx) \ 141 (cgen_rtx_error (current_cpu, "FIDXI isn't implemented"), 0) 142 143 #define crisv32f_ftagi_handler(cpu, pc, indx) \ 144 (cgen_rtx_error (current_cpu, "FTAGI isn't implemented"), 0) 145 146 #define crisv32f_fidxd_handler(cpu, pc, indx) \ 147 (cgen_rtx_error (current_cpu, "FIDXD isn't implemented"), 0) 148 149 #define crisv32f_ftagd_handler(cpu, pc, indx) \ 150 (cgen_rtx_error (current_cpu, "FTAGD isn't implemented"), 0) 151 152 /* We have nothing special to do when interrupts or NMI are enabled 153 after having been disabled, so empty macros are enough for these 154 hooks. */ 155 #define crisv32f_interrupts_enabled(cpu) 156 #define crisv32f_nmi_enabled(cpu) 157 158 /* Better warn for this case here, because everything needed is 159 somewhere within the CPU. Compare to trying to use interrupts and 160 NMI, which would fail earlier, when trying to make nonexistent 161 external components generate those exceptions. */ 162 #define crisv32f_single_step_enabled(cpu) \ 163 ((crisv32f_h_qbit_get (cpu) != 0 \ 164 || (crisv32f_h_sr_get (cpu, H_SR_SPC) & ~1) != 0) \ 165 ? (cgen_rtx_error (cpu, \ 166 "single-stepping isn't implemented"), 0) \ 167 : 0) 168 169 /* We don't need to track the value of the PID register here. */ 170 #define crisv32f_write_pid_handler(cpu, val) 171 172 /* Neither do we need to know of transitions to user mode. */ 173 #define crisv32f_usermode_enabled(cpu) 174 175 /* House-keeping exported from traps.c */ 176 extern void cris_set_callbacks (host_callback *); 177 178 /* FIXME: Add more junk. */ 179 #endif 180