1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 4 */ 5 6 #ifndef _ASM_ARC_ARCREGS_H 7 #define _ASM_ARC_ARCREGS_H 8 9 /* Build Configuration Registers */ 10 #define ARC_REG_AUX_DCCM 0x18 /* DCCM Base Addr ARCv2 */ 11 #define ARC_REG_ERP_CTRL 0x3F /* ARCv2 Error protection control */ 12 #define ARC_REG_DCCM_BASE_BUILD 0x61 /* DCCM Base Addr ARCompact */ 13 #define ARC_REG_CRC_BCR 0x62 14 #define ARC_REG_VECBASE_BCR 0x68 15 #define ARC_REG_PERIBASE_BCR 0x69 16 #define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */ 17 #define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */ 18 #define ARC_REG_ERP_BUILD 0xc7 /* ARCv2 Error protection Build: ECC/Parity */ 19 #define ARC_REG_FP_V2_BCR 0xc8 /* ARCv2 FPU */ 20 #define ARC_REG_SLC_BCR 0xce 21 #define ARC_REG_DCCM_BUILD 0x74 /* DCCM size (common) */ 22 #define ARC_REG_AP_BCR 0x76 23 #define ARC_REG_ICCM_BUILD 0x78 /* ICCM size (common) */ 24 #define ARC_REG_XY_MEM_BCR 0x79 25 #define ARC_REG_MAC_BCR 0x7a 26 #define ARC_REG_MUL_BCR 0x7b 27 #define ARC_REG_SWAP_BCR 0x7c 28 #define ARC_REG_NORM_BCR 0x7d 29 #define ARC_REG_MIXMAX_BCR 0x7e 30 #define ARC_REG_BARREL_BCR 0x7f 31 #define ARC_REG_D_UNCACH_BCR 0x6A 32 #define ARC_REG_BPU_BCR 0xc0 33 #define ARC_REG_ISA_CFG_BCR 0xc1 34 #define ARC_REG_LPB_BUILD 0xE9 /* ARCv2 Loop Buffer Build */ 35 #define ARC_REG_RTT_BCR 0xF2 36 #define ARC_REG_IRQ_BCR 0xF3 37 #define ARC_REG_MICRO_ARCH_BCR 0xF9 /* ARCv2 Product revision */ 38 #define ARC_REG_SMART_BCR 0xFF 39 #define ARC_REG_CLUSTER_BCR 0xcf 40 #define ARC_REG_AUX_ICCM 0x208 /* ICCM Base Addr (ARCv2) */ 41 #define ARC_REG_LPB_CTRL 0x488 /* ARCv2 Loop Buffer control */ 42 #define ARC_REG_FPU_CTRL 0x300 43 #define ARC_REG_FPU_STATUS 0x301 44 45 /* Common for ARCompact and ARCv2 status register */ 46 #define ARC_REG_STATUS32 0x0A 47 48 /* status32 Bits Positions */ 49 #define STATUS_AE_BIT 5 /* Exception active */ 50 #define STATUS_DE_BIT 6 /* PC is in delay slot */ 51 #define STATUS_U_BIT 7 /* User/Kernel mode */ 52 #define STATUS_Z_BIT 11 53 #define STATUS_L_BIT 12 /* Loop inhibit */ 54 55 /* These masks correspond to the status word(STATUS_32) bits */ 56 #define STATUS_AE_MASK (1<<STATUS_AE_BIT) 57 #define STATUS_DE_MASK (1<<STATUS_DE_BIT) 58 #define STATUS_U_MASK (1<<STATUS_U_BIT) 59 #define STATUS_Z_MASK (1<<STATUS_Z_BIT) 60 #define STATUS_L_MASK (1<<STATUS_L_BIT) 61 62 /* 63 * ECR: Exception Cause Reg bits-n-pieces 64 * [23:16] = Exception Vector 65 * [15: 8] = Exception Cause Code 66 * [ 7: 0] = Exception Parameters (for certain types only) 67 */ 68 #ifdef CONFIG_ISA_ARCOMPACT 69 #define ECR_V_MEM_ERR 0x01 70 #define ECR_V_INSN_ERR 0x02 71 #define ECR_V_MACH_CHK 0x20 72 #define ECR_V_ITLB_MISS 0x21 73 #define ECR_V_DTLB_MISS 0x22 74 #define ECR_V_PROTV 0x23 75 #define ECR_V_TRAP 0x25 76 #else 77 #define ECR_V_MEM_ERR 0x01 78 #define ECR_V_INSN_ERR 0x02 79 #define ECR_V_MACH_CHK 0x03 80 #define ECR_V_ITLB_MISS 0x04 81 #define ECR_V_DTLB_MISS 0x05 82 #define ECR_V_PROTV 0x06 83 #define ECR_V_TRAP 0x09 84 #define ECR_V_MISALIGN 0x0d 85 #endif 86 87 /* DTLB Miss and Protection Violation Cause Codes */ 88 89 #define ECR_C_PROTV_INST_FETCH 0x00 90 #define ECR_C_PROTV_LOAD 0x01 91 #define ECR_C_PROTV_STORE 0x02 92 #define ECR_C_PROTV_XCHG 0x03 93 #define ECR_C_PROTV_MISALIG_DATA 0x04 94 95 #define ECR_C_BIT_PROTV_MISALIG_DATA 10 96 97 /* Machine Check Cause Code Values */ 98 #define ECR_C_MCHK_DUP_TLB 0x01 99 100 /* DTLB Miss Exception Cause Code Values */ 101 #define ECR_C_BIT_DTLB_LD_MISS 8 102 #define ECR_C_BIT_DTLB_ST_MISS 9 103 104 /* Auxiliary registers */ 105 #define AUX_IDENTITY 4 106 #define AUX_EXEC_CTRL 8 107 #define AUX_INTR_VEC_BASE 0x25 108 #define AUX_VOL 0x5e 109 110 /* 111 * Floating Pt Registers 112 * Status regs are read-only (build-time) so need not be saved/restored 113 */ 114 #define ARC_AUX_FP_STAT 0x300 115 #define ARC_AUX_DPFP_1L 0x301 116 #define ARC_AUX_DPFP_1H 0x302 117 #define ARC_AUX_DPFP_2L 0x303 118 #define ARC_AUX_DPFP_2H 0x304 119 #define ARC_AUX_DPFP_STAT 0x305 120 121 /* 122 * DSP-related registers 123 * Registers names must correspond to dsp_callee_regs structure fields names 124 * for automatic offset calculation in DSP_AUX_SAVE_RESTORE macros. 125 */ 126 #define ARC_AUX_DSP_BUILD 0x7A 127 #define ARC_AUX_ACC0_LO 0x580 128 #define ARC_AUX_ACC0_GLO 0x581 129 #define ARC_AUX_ACC0_HI 0x582 130 #define ARC_AUX_ACC0_GHI 0x583 131 #define ARC_AUX_DSP_BFLY0 0x598 132 #define ARC_AUX_DSP_CTRL 0x59F 133 #define ARC_AUX_DSP_FFT_CTRL 0x59E 134 135 #define ARC_AUX_AGU_BUILD 0xCC 136 #define ARC_AUX_AGU_AP0 0x5C0 137 #define ARC_AUX_AGU_AP1 0x5C1 138 #define ARC_AUX_AGU_AP2 0x5C2 139 #define ARC_AUX_AGU_AP3 0x5C3 140 #define ARC_AUX_AGU_OS0 0x5D0 141 #define ARC_AUX_AGU_OS1 0x5D1 142 #define ARC_AUX_AGU_MOD0 0x5E0 143 #define ARC_AUX_AGU_MOD1 0x5E1 144 #define ARC_AUX_AGU_MOD2 0x5E2 145 #define ARC_AUX_AGU_MOD3 0x5E3 146 147 #ifndef __ASSEMBLY__ 148 149 #include <soc/arc/aux.h> 150 151 /* Helpers */ 152 #define TO_KB(bytes) ((bytes) >> 10) 153 #define TO_MB(bytes) (TO_KB(bytes) >> 10) 154 #define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10)) 155 #define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10) 156 157 158 /* 159 *************************************************************** 160 * Build Configuration Registers, with encoded hardware config 161 */ 162 struct bcr_identity { 163 #ifdef CONFIG_CPU_BIG_ENDIAN 164 unsigned int chip_id:16, cpu_id:8, family:8; 165 #else 166 unsigned int family:8, cpu_id:8, chip_id:16; 167 #endif 168 }; 169 170 struct bcr_isa_arcv2 { 171 #ifdef CONFIG_CPU_BIG_ENDIAN 172 unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1, 173 pad1:12, ver:8; 174 #else 175 unsigned int ver:8, pad1:12, be:1, atomic:1, unalign:1, 176 ldd:1, pad2:4, div_rem:4; 177 #endif 178 }; 179 180 struct bcr_uarch_build_arcv2 { 181 #ifdef CONFIG_CPU_BIG_ENDIAN 182 unsigned int pad:8, prod:8, maj:8, min:8; 183 #else 184 unsigned int min:8, maj:8, prod:8, pad:8; 185 #endif 186 }; 187 188 struct bcr_mpy { 189 #ifdef CONFIG_CPU_BIG_ENDIAN 190 unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8; 191 #else 192 unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8; 193 #endif 194 }; 195 196 struct bcr_iccm_arcompact { 197 #ifdef CONFIG_CPU_BIG_ENDIAN 198 unsigned int base:16, pad:5, sz:3, ver:8; 199 #else 200 unsigned int ver:8, sz:3, pad:5, base:16; 201 #endif 202 }; 203 204 struct bcr_iccm_arcv2 { 205 #ifdef CONFIG_CPU_BIG_ENDIAN 206 unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8; 207 #else 208 unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8; 209 #endif 210 }; 211 212 struct bcr_dccm_arcompact { 213 #ifdef CONFIG_CPU_BIG_ENDIAN 214 unsigned int res:21, sz:3, ver:8; 215 #else 216 unsigned int ver:8, sz:3, res:21; 217 #endif 218 }; 219 220 struct bcr_dccm_arcv2 { 221 #ifdef CONFIG_CPU_BIG_ENDIAN 222 unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8; 223 #else 224 unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12; 225 #endif 226 }; 227 228 /* ARCompact: Both SP and DP FPU BCRs have same format */ 229 struct bcr_fp_arcompact { 230 #ifdef CONFIG_CPU_BIG_ENDIAN 231 unsigned int fast:1, ver:8; 232 #else 233 unsigned int ver:8, fast:1; 234 #endif 235 }; 236 237 struct bcr_fp_arcv2 { 238 #ifdef CONFIG_CPU_BIG_ENDIAN 239 unsigned int pad2:15, dp:1, pad1:7, sp:1, ver:8; 240 #else 241 unsigned int ver:8, sp:1, pad1:7, dp:1, pad2:15; 242 #endif 243 }; 244 245 struct bcr_actionpoint { 246 #ifdef CONFIG_CPU_BIG_ENDIAN 247 unsigned int pad:21, min:1, num:2, ver:8; 248 #else 249 unsigned int ver:8, num:2, min:1, pad:21; 250 #endif 251 }; 252 253 #include <soc/arc/timers.h> 254 255 struct bcr_bpu_arcompact { 256 #ifdef CONFIG_CPU_BIG_ENDIAN 257 unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8; 258 #else 259 unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19; 260 #endif 261 }; 262 263 struct bcr_bpu_arcv2 { 264 #ifdef CONFIG_CPU_BIG_ENDIAN 265 unsigned int pad:6, fbe:2, tqe:2, ts:4, ft:1, rse:2, pte:3, bce:3, ver:8; 266 #else 267 unsigned int ver:8, bce:3, pte:3, rse:2, ft:1, ts:4, tqe:2, fbe:2, pad:6; 268 #endif 269 }; 270 271 /* Error Protection Build: ECC/Parity */ 272 struct bcr_erp { 273 #ifdef CONFIG_CPU_BIG_ENDIAN 274 unsigned int pad3:5, mmu:3, pad2:4, ic:3, dc:3, pad1:6, ver:8; 275 #else 276 unsigned int ver:8, pad1:6, dc:3, ic:3, pad2:4, mmu:3, pad3:5; 277 #endif 278 }; 279 280 /* Error Protection Control */ 281 struct ctl_erp { 282 #ifdef CONFIG_CPU_BIG_ENDIAN 283 unsigned int pad2:27, mpd:1, pad1:2, dpd:1, dpi:1; 284 #else 285 unsigned int dpi:1, dpd:1, pad1:2, mpd:1, pad2:27; 286 #endif 287 }; 288 289 struct bcr_lpb { 290 #ifdef CONFIG_CPU_BIG_ENDIAN 291 unsigned int pad:16, entries:8, ver:8; 292 #else 293 unsigned int ver:8, entries:8, pad:16; 294 #endif 295 }; 296 297 struct bcr_generic { 298 #ifdef CONFIG_CPU_BIG_ENDIAN 299 unsigned int info:24, ver:8; 300 #else 301 unsigned int ver:8, info:24; 302 #endif 303 }; 304 305 /* 306 ******************************************************************* 307 * Generic structures to hold build configuration used at runtime 308 */ 309 310 struct cpuinfo_arc_mmu { 311 unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, pad:10, sasid:1, pae:1; 312 unsigned int sets:12, ways:4, u_dtlb:8, u_itlb:8; 313 }; 314 315 struct cpuinfo_arc_cache { 316 unsigned int sz_k:14, line_len:8, assoc:4, alias:1, vipt:1, pad:4; 317 }; 318 319 struct cpuinfo_arc_bpu { 320 unsigned int ver, full, num_cache, num_pred, ret_stk; 321 }; 322 323 struct cpuinfo_arc_ccm { 324 unsigned int base_addr, sz; 325 }; 326 327 struct cpuinfo_arc { 328 struct cpuinfo_arc_cache icache, dcache, slc; 329 struct cpuinfo_arc_mmu mmu; 330 struct cpuinfo_arc_bpu bpu; 331 struct bcr_identity core; 332 struct bcr_isa_arcv2 isa; 333 const char *release, *name; 334 unsigned int vec_base; 335 struct cpuinfo_arc_ccm iccm, dccm; 336 struct { 337 unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2, 338 fpu_sp:1, fpu_dp:1, dual:1, dual_enb:1, pad2:4, 339 ap_num:4, ap_full:1, smart:1, rtt:1, pad3:1, 340 timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4; 341 } extn; 342 struct bcr_mpy extn_mpy; 343 }; 344 345 extern struct cpuinfo_arc cpuinfo_arc700[]; 346 347 static inline int is_isa_arcv2(void) 348 { 349 return IS_ENABLED(CONFIG_ISA_ARCV2); 350 } 351 352 static inline int is_isa_arcompact(void) 353 { 354 return IS_ENABLED(CONFIG_ISA_ARCOMPACT); 355 } 356 357 #endif /* __ASEMBLY__ */ 358 359 #endif /* _ASM_ARC_ARCREGS_H */ 360