| /* 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 <http://www.gnu.org/licenses/>. */ |
| |
| #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); |
| void post_wait_for_FR (SIM_CPU *, INT); |
| void post_wait_for_FRdouble (SIM_CPU *, INT); |
| void post_wait_for_ACC (SIM_CPU *, INT); |
| void post_wait_for_CCR (SIM_CPU *, INT); |
| void post_wait_for_SPR (SIM_CPU *, INT); |
| void post_wait_for_fdiv (SIM_CPU *, INT); |
| void post_wait_for_fsqrt (SIM_CPU *, INT); |
| void post_wait_for_float (SIM_CPU *, INT); |
| void 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 |
| |
| SI frv_ref_SI (SI); |
| |
| #endif /* PROFILE_H */ |
