/* Profiling definitions for the FRV simulator Copyright (C) 1998-2021 Free Software Foundation, Inc. Contributed by Red Hat. This file is part of the GNU Simulators. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #ifndef PROFILE_H #define PROFILE_H #include "frv-desc.h" /* This struct defines the state of profiling. All fields are of general use to all machines. */ typedef struct { long vliw_insns; /* total number of VLIW insns. */ long vliw_wait; /* number of cycles that the current VLIW insn must wait. */ long post_wait; /* number of cycles that post processing in the current VLIW insn must wait. */ long vliw_cycles;/* number of cycles used by current VLIW insn. */ int past_first_p; /* Not the first insns in the VLIW */ /* Register latencies. Must be signed since they can be temporarily negative. */ int gr_busy[64]; /* Cycles until GR is available. */ int fr_busy[64]; /* Cycles until FR is available. */ int acc_busy[64]; /* Cycles until FR is available. */ int ccr_busy[8]; /* Cycles until ICC/FCC is available. */ int spr_busy[4096]; /* Cycles until spr is available. */ int idiv_busy[2]; /* Cycles until integer division unit is available. */ int fdiv_busy[2]; /* Cycles until float division unit is available. */ int fsqrt_busy[2]; /* Cycles until square root unit is available. */ int float_busy[4]; /* Cycles until floating point unit is available. */ int media_busy[4]; /* Cycles until media unit is available. */ int branch_penalty; /* Cycles until branch is complete. */ int gr_latency[64]; /* Cycles until target GR is available. */ int fr_latency[64]; /* Cycles until target FR is available. */ int acc_latency[64]; /* Cycles until target FR is available. */ int ccr_latency[8]; /* Cycles until target ICC/FCC is available. */ int spr_latency[4096]; /* Cycles until target spr is available. */ /* Some registers are busy for a shorter number of cycles than normal depending on how they are used next. the xxx_busy_adjust arrays keep track of how many cycles to adjust down. */ int fr_busy_adjust[64]; int acc_busy_adjust[64]; /* Register flags. Each bit represents one register. */ DI cur_gr_complex; DI prev_gr_complex; /* Keep track of the total queued post-processing time required before a resource is available. This is applied to the resource's latency once all pending loads for the resource are completed. */ int fr_ptime[64]; int branch_hint; /* hint field from branch insn. */ USI branch_address; /* Address of predicted branch. */ USI insn_fetch_address;/* Address of sequential insns fetched. */ int mclracc_acc; /* ACC number of register cleared by mclracc. */ int mclracc_A; /* A field of mclracc. */ /* We need to know when the first branch of a vliw insn is taken, so that we don't consider the remaining branches in the vliw insn. */ int vliw_branch_taken; /* Keep track of the maximum load stall for each VLIW insn. */ int vliw_load_stall; /* Need to know if all cache entries are affected by various cache operations. */ int all_cache_entries; } FRV_PROFILE_STATE; #define DUAL_REG(reg) ((reg) >= 0 && (reg) < 63 ? (reg) + 1 : -1) #define DUAL_DOUBLE(reg) ((reg) >= 0 && (reg) < 61 ? (reg) + 2 : -1) /* Return the GNER register associated with the given GR register. There is no GNER associated with gr0. */ #define GNER_FOR_GR(gr) ((gr) > 63 ? -1 : \ (gr) > 31 ? H_SPR_GNER0 : \ (gr) > 0 ? H_SPR_GNER1 : \ -1) /* Return the GNER register associated with the given GR register. There is no GNER associated with gr0. */ #define FNER_FOR_FR(fr) ((fr) > 63 ? -1 : \ (fr) > 31 ? H_SPR_FNER0 : \ (fr) > 0 ? H_SPR_FNER1 : \ -1) /* Top up the latency of the given GR by the given number of cycles. */ void update_GR_latency (SIM_CPU *, INT, int); void update_GRdouble_latency (SIM_CPU *, INT, int); void update_GR_latency_for_load (SIM_CPU *, INT, int); void update_GRdouble_latency_for_load (SIM_CPU *, INT, int); void update_GR_latency_for_swap (SIM_CPU *, INT, int); void update_FR_latency (SIM_CPU *, INT, int); void update_FRdouble_latency (SIM_CPU *, INT, int); void update_FR_latency_for_load (SIM_CPU *, INT, int); void update_FRdouble_latency_for_load (SIM_CPU *, INT, int); void update_FR_ptime (SIM_CPU *, INT, int); void update_FRdouble_ptime (SIM_CPU *, INT, int); void decrease_ACC_busy (SIM_CPU *, INT, int); void decrease_FR_busy (SIM_CPU *, INT, int); void decrease_GR_busy (SIM_CPU *, INT, int); void increase_FR_busy (SIM_CPU *, INT, int); void increase_ACC_busy (SIM_CPU *, INT, int); void update_ACC_latency (SIM_CPU *, INT, int); void update_CCR_latency (SIM_CPU *, INT, int); void update_SPR_latency (SIM_CPU *, INT, int); void update_idiv_resource_latency (SIM_CPU *, INT, int); void update_fdiv_resource_latency (SIM_CPU *, INT, int); void update_fsqrt_resource_latency (SIM_CPU *, INT, int); void update_float_resource_latency (SIM_CPU *, INT, int); void update_media_resource_latency (SIM_CPU *, INT, int); void update_branch_penalty (SIM_CPU *, int); void update_ACC_ptime (SIM_CPU *, INT, int); void update_SPR_ptime (SIM_CPU *, INT, int); void vliw_wait_for_GR (SIM_CPU *, INT); void vliw_wait_for_GRdouble (SIM_CPU *, INT); void vliw_wait_for_FR (SIM_CPU *, INT); void vliw_wait_for_FRdouble (SIM_CPU *, INT); void vliw_wait_for_CCR (SIM_CPU *, INT); void vliw_wait_for_ACC (SIM_CPU *, INT); void vliw_wait_for_SPR (SIM_CPU *, INT); void vliw_wait_for_idiv_resource (SIM_CPU *, INT); void vliw_wait_for_fdiv_resource (SIM_CPU *, INT); void vliw_wait_for_fsqrt_resource (SIM_CPU *, INT); void vliw_wait_for_float_resource (SIM_CPU *, INT); void vliw_wait_for_media_resource (SIM_CPU *, INT); void load_wait_for_GR (SIM_CPU *, INT); void load_wait_for_FR (SIM_CPU *, INT); void load_wait_for_GRdouble (SIM_CPU *, INT); void load_wait_for_FRdouble (SIM_CPU *, INT); void enforce_full_fr_latency (SIM_CPU *, INT); void enforce_full_acc_latency (SIM_CPU *, INT); int post_wait_for_FR (SIM_CPU *, INT); int post_wait_for_FRdouble (SIM_CPU *, INT); int post_wait_for_ACC (SIM_CPU *, INT); int post_wait_for_CCR (SIM_CPU *, INT); int post_wait_for_SPR (SIM_CPU *, INT); int post_wait_for_fdiv (SIM_CPU *, INT); int post_wait_for_fsqrt (SIM_CPU *, INT); int post_wait_for_float (SIM_CPU *, INT); int post_wait_for_media (SIM_CPU *, INT); void trace_vliw_wait_cycles (SIM_CPU *); void handle_resource_wait (SIM_CPU *); void request_cache_load (SIM_CPU *, INT, int, int); void request_cache_flush (SIM_CPU *, FRV_CACHE *, int); void request_cache_invalidate (SIM_CPU *, FRV_CACHE *, int); void request_cache_preload (SIM_CPU *, FRV_CACHE *, int); void request_cache_unlock (SIM_CPU *, FRV_CACHE *, int); int load_pending_for_register (SIM_CPU *, int, int, int); void set_use_is_gr_complex (SIM_CPU *, INT); void set_use_not_gr_complex (SIM_CPU *, INT); int use_is_gr_complex (SIM_CPU *, INT); typedef struct { SI address; unsigned reqno; } FRV_INSN_FETCH_BUFFER; extern FRV_INSN_FETCH_BUFFER frv_insn_fetch_buffer[]; PROFILE_INFO_CPU_CALLBACK_FN frv_profile_info; enum { /* Simulator specific profile bits begin here. */ /* Profile caches. */ PROFILE_CACHE_IDX = PROFILE_NEXT_IDX, /* Profile parallelization. */ PROFILE_PARALLEL_IDX }; /* Masks so WITH_PROFILE can have symbolic values. The case choice here is on purpose. The lowercase parts are args to --with-profile. */ #define PROFILE_cache (1 << PROFILE_INSN_IDX) #define PROFILE_parallel (1 << PROFILE_INSN_IDX) /* Preprocessor macros to simplify tests of WITH_PROFILE. */ #define WITH_PROFILE_CACHE_P (WITH_PROFILE & PROFILE_insn) #define WITH_PROFILE_PARALLEL_P (WITH_PROFILE & PROFILE_insn) #define FRV_COUNT_CYCLES(cpu, condition) \ ((PROFILE_MODEL_P (cpu) && (condition)) || frv_interrupt_state.timer.enabled) /* Modelling support. */ extern int frv_save_profile_model_p; extern enum FRV_INSN_MODELING { FRV_INSN_NO_MODELING = 0, FRV_INSN_MODEL_PASS_1, FRV_INSN_MODEL_PASS_2, FRV_INSN_MODEL_WRITEBACK } model_insn; void frv_model_advance_cycles (SIM_CPU *, int); void frv_model_trace_wait_cycles (SIM_CPU *, int, const char *); /* Register types for queued load requests. */ #define REGTYPE_NONE 0 #define REGTYPE_FR 1 #define REGTYPE_ACC 2 #endif /* PROFILE_H */