1;; Marvell ARM Processor Pipeline Description 2;; Copyright (C) 2010-2013 Free Software Foundation, Inc. 3;; Contributed by Marvell. 4 5;; This file is part of GCC. 6 7;; GCC is free software; you can redistribute it and/or modify it 8;; under the terms of the GNU General Public License as published 9;; by the Free Software Foundation; either version 3, or (at your 10;; option) any later version. 11 12;; GCC is distributed in the hope that it will be useful, but WITHOUT 13;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15;; License for more details. 16 17;; You should have received a copy of the GNU General Public License 18;; along with GCC; see the file COPYING3. If not see 19;; <http://www.gnu.org/licenses/>. 20 21;; Pipeline description for the Marvell PJ4, aka "Flareon". 22(define_automaton "pj4") 23 24;; Issue resources 25(define_cpu_unit "pj4_is1,pj4_is2" "pj4") 26(define_reservation "pj4_is" "(pj4_is1|pj4_is2)") 27(define_reservation "pj4_isb" "(pj4_is1+pj4_is2)") 28 29;; Functional units 30(define_cpu_unit "pj4_alu1,pj4_alu2,pj4_mul,pj4_div" "pj4") 31 32;; Completion ports 33(define_cpu_unit "pj4_w1,pj4_w2" "pj4") 34 35;; Complete/Retire control 36(define_cpu_unit "pj4_c1,pj4_c2" "pj4") 37(define_reservation "pj4_cp" "(pj4_c1|pj4_c2)") 38(define_reservation "pj4_cpb" "(pj4_c1+pj4_c2)") 39 40;; Integer arithmetic instructions 41 42(define_insn_reservation "pj4_alu_e1" 1 43 (and (eq_attr "tune" "marvell_pj4") 44 (eq_attr "type" "simple_alu_imm,alu_reg") 45 (not (eq_attr "conds" "set")) 46 (eq_attr "insn" "mov,mvn")) 47 "pj4_is,(pj4_alu1,pj4_w1+pj4_cp)|(pj4_alu2,pj4_w2+pj4_cp)") 48 49(define_insn_reservation "pj4_alu_e1_conds" 4 50 (and (eq_attr "tune" "marvell_pj4") 51 (eq_attr "type" "simple_alu_imm,alu_reg") 52 (eq_attr "conds" "set") 53 (eq_attr "insn" "mov,mvn")) 54 "pj4_is,(pj4_alu1,pj4_w1+pj4_cp)|(pj4_alu2,pj4_w2+pj4_cp)") 55 56(define_insn_reservation "pj4_alu" 1 57 (and (eq_attr "tune" "marvell_pj4") 58 (eq_attr "type" "simple_alu_imm,alu_reg") 59 (not (eq_attr "conds" "set")) 60 (not (eq_attr "insn" "mov,mvn"))) 61 "pj4_is,(pj4_alu1,pj4_w1+pj4_cp)|(pj4_alu2,pj4_w2+pj4_cp)") 62 63(define_insn_reservation "pj4_alu_conds" 4 64 (and (eq_attr "tune" "marvell_pj4") 65 (eq_attr "type" "simple_alu_imm,alu_reg") 66 (eq_attr "conds" "set") 67 (not (eq_attr "insn" "mov,mvn"))) 68 "pj4_is,(pj4_alu1,pj4_w1+pj4_cp)|(pj4_alu2,pj4_w2+pj4_cp)") 69 70(define_insn_reservation "pj4_shift" 1 71 (and (eq_attr "tune" "marvell_pj4") 72 (eq_attr "type" "alu_shift,alu_shift_reg,simple_alu_shift") 73 (not (eq_attr "conds" "set")) 74 (eq_attr "shift" "1")) "pj4_is,(pj4_alu1,pj4_w1+pj4_cp)|(pj4_alu2,pj4_w2+pj4_cp)") 75 76(define_insn_reservation "pj4_shift_conds" 4 77 (and (eq_attr "tune" "marvell_pj4") 78 (eq_attr "type" "alu_shift,alu_shift_reg,simple_alu_shift") 79 (eq_attr "conds" "set") 80 (eq_attr "shift" "1")) "pj4_is,(pj4_alu1,pj4_w1+pj4_cp)|(pj4_alu2,pj4_w2+pj4_cp)") 81 82(define_insn_reservation "pj4_alu_shift" 1 83 (and (eq_attr "tune" "marvell_pj4") 84 (not (eq_attr "conds" "set")) 85 (eq_attr "type" "alu_shift,alu_shift_reg,simple_alu_shift")) 86 "pj4_is,(pj4_alu1,nothing,pj4_w1+pj4_cp)|(pj4_alu2,nothing,pj4_w2+pj4_cp)") 87 88(define_insn_reservation "pj4_alu_shift_conds" 4 89 (and (eq_attr "tune" "marvell_pj4") 90 (eq_attr "conds" "set") 91 (eq_attr "type" "alu_shift,alu_shift_reg,simple_alu_shift")) 92 "pj4_is,(pj4_alu1,nothing,pj4_w1+pj4_cp)|(pj4_alu2,nothing,pj4_w2+pj4_cp)") 93 94(define_bypass 2 "pj4_alu_shift,pj4_shift" 95 "pj4_ir_mul,pj4_ir_div,pj4_core_to_vfp") 96 97(define_insn_reservation "pj4_ir_mul" 3 98 (and (eq_attr "tune" "marvell_pj4") (eq_attr "type" "mult")) "pj4_is,pj4_mul,nothing*2,pj4_cp") 99 100(define_insn_reservation "pj4_ir_div" 20 101 (and (eq_attr "tune" "marvell_pj4") (eq_attr "insn" "udiv,sdiv")) "pj4_is,pj4_div*19,pj4_cp") 102 103;; Branches and calls. 104 105(define_insn_reservation "pj4_branches" 0 106 (and (eq_attr "tune" "marvell_pj4") (eq_attr "type" "branch")) "pj4_is") 107 108(define_insn_reservation "pj4_calls" 32 109 (and (eq_attr "tune" "marvell_pj4") (eq_attr "type" "call")) "pj4_is") 110 111;; Load/store instructions 112 113(define_insn_reservation "pj4_ldr" 3 114 (and (eq_attr "tune" "marvell_pj4") 115 (eq_attr "type" "load_byte,load1")) 116 "pj4_is,pj4_alu1,nothing*2,pj4_cp") 117 118(define_insn_reservation "pj4_ldrd" 3 119 (and (eq_attr "tune" "marvell_pj4") 120 (eq_attr "type" "load2")) 121 "pj4_is,pj4_alu1,nothing*2,pj4_cpb") 122 123(define_insn_reservation "pj4_str" 1 124 (and (eq_attr "tune" "marvell_pj4") 125 (eq_attr "type" "store1")) 126 "pj4_is,pj4_alu1,nothing*2,pj4_cp") 127 128(define_insn_reservation "pj4_strd" 1 129 (and (eq_attr "tune" "marvell_pj4") 130 (eq_attr "type" "store2")) 131 "pj4_is,pj4_alu1,nothing*2,pj4_cpb") 132 133(define_insn_reservation "pj4_ldm" 4 134 (and (eq_attr "tune" "marvell_pj4") 135 (eq_attr "type" "load3,load4")) "pj4_isb,pj4_isb+pj4_alu1,pj4_alu1,nothing,pj4_cp,pj4_cp") 136 137(define_insn_reservation "pj4_stm" 2 138 (and (eq_attr "tune" "marvell_pj4") 139 (eq_attr "type" "store3,store4")) "pj4_isb,pj4_isb+pj4_alu1,pj4_alu1,nothing,pj4_cp,pj4_cp") 140 141;; Loads forward at WR-stage to ALU pipes 142(define_bypass 2 "pj4_ldr,pj4_ldrd" "pj4_alu") 143(define_bypass 2 "pj4_ldr,pj4_ldrd" "pj4_alu_shift" "arm_no_early_alu_shift_dep") 144 145(define_bypass 4 "pj4_ldr,pj4_ldrd" "pj4_ir_mul,pj4_ir_div,pj4_core_to_vfp") 146(define_bypass 5 "pj4_ldm" "pj4_ir_mul,pj4_ir_div,pj4_core_to_vfp") 147 148;; Loads to stores can back-to-back forward 149(define_bypass 1 "pj4_ldr,pj4_ldrd" "pj4_str,pj4_strd" "arm_no_early_store_addr_dep") 150 151;; PJ4 VFP floating point unit 152(define_automaton "pj4_vfp") 153 154(define_cpu_unit "vissue" "pj4_vfp") 155(define_cpu_unit "vadd" "pj4_vfp") 156(define_cpu_unit "vmul" "pj4_vfp") 157(define_cpu_unit "vdiv" "pj4_vfp") 158(define_cpu_unit "vfast" "pj4_vfp") 159 160(define_insn_reservation "pj4_vfp_add" 5 161 (and (eq_attr "tune" "marvell_pj4") 162 (eq_attr "type" "fadds,faddd")) "pj4_is,nothing*2,vissue,vadd,nothing*3") 163 164(define_insn_reservation "pj4_vfp_mul" 6 165 (and (eq_attr "tune" "marvell_pj4") 166 (eq_attr "type" "fmuls,fmuld")) "pj4_is,nothing*2,vissue,vmul,nothing*4") 167 168(define_insn_reservation "pj4_vfp_divs" 20 169 (and (eq_attr "tune" "marvell_pj4") 170 (eq_attr "type" "fdivs")) "pj4_is,nothing*2,vissue,vdiv*18,nothing") 171 172(define_insn_reservation "pj4_vfp_divd" 34 173 (and (eq_attr "tune" "marvell_pj4") 174 (eq_attr "type" "fdivd")) "pj4_is,nothing*2,vissue,vdiv*32,nothing") 175 176(define_insn_reservation "pj4_vfp_mac" 9 177 (and (eq_attr "tune" "marvell_pj4") 178 (eq_attr "type" "fmacs,fmacd")) 179 "pj4_is,nothing*2,vissue,vmul,nothing*3,vadd,nothing*3") 180 181(define_bypass 5 "pj4_vfp_mac" "pj4_vfp_mac" "arm_no_early_mul_dep") 182 183(define_insn_reservation "pj4_vfp_cpy" 4 184 (and (eq_attr "tune" "marvell_pj4") 185 (eq_attr "type" "fcpys,ffariths,ffarithd,fconsts,fconstd,\ 186 fcmps,fcmpd,f_cvt")) "pj4_is,nothing*2,vissue,vfast,nothing*2") 187 188;; Enlarge latency, and wish that more nondependent insns are 189;; scheduled immediately after VFP load. 190(define_insn_reservation "pj4_vfp_load" 4 191 (and (eq_attr "tune" "marvell_pj4") 192 (eq_attr "type" "f_loads,f_loadd")) "pj4_isb,pj4_alu1,nothing,vissue,pj4_cp") 193 194(define_insn_reservation "pj4_vfp_store" 1 195 (and (eq_attr "tune" "marvell_pj4") 196 (eq_attr "type" "f_stores,f_stored")) "pj4_isb,pj4_alu1,nothing,vissue,pj4_cp") 197 198(define_insn_reservation "pj4_vfp_to_core" 7 199 (and (eq_attr "tune" "marvell_pj4") 200 (eq_attr "type" "f_2_r,f_flag")) "pj4_isb,nothing,nothing,vissue,vfast,nothing*2") 201 202(define_insn_reservation "pj4_core_to_vfp" 2 203 (and (eq_attr "tune" "marvell_pj4") 204 (eq_attr "type" "r_2_f")) "pj4_isb,pj4_alu1,pj4_w1,vissue,pj4_cp") 205 206