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_MPY_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 */ 162struct 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 170struct 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 180struct bcr_uarch_build { 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 188struct bcr_mmu_3 { 189#ifdef CONFIG_CPU_BIG_ENDIAN 190 unsigned int ver:8, ways:4, sets:4, res:3, sasid:1, pg_sz:4, 191 u_itlb:4, u_dtlb:4; 192#else 193 unsigned int u_dtlb:4, u_itlb:4, pg_sz:4, sasid:1, res:3, sets:4, 194 ways:4, ver:8; 195#endif 196}; 197 198struct bcr_mmu_4 { 199#ifdef CONFIG_CPU_BIG_ENDIAN 200 unsigned int ver:8, sasid:1, sz1:4, sz0:4, res:2, pae:1, 201 n_ways:2, n_entry:2, n_super:2, u_itlb:3, u_dtlb:3; 202#else 203 /* DTLB ITLB JES JE JA */ 204 unsigned int u_dtlb:3, u_itlb:3, n_super:2, n_entry:2, n_ways:2, 205 pae:1, res:2, sz0:4, sz1:4, sasid:1, ver:8; 206#endif 207}; 208 209struct bcr_cache { 210#ifdef CONFIG_CPU_BIG_ENDIAN 211 unsigned int pad:12, line_len:4, sz:4, config:4, ver:8; 212#else 213 unsigned int ver:8, config:4, sz:4, line_len:4, pad:12; 214#endif 215}; 216 217struct bcr_slc_cfg { 218#ifdef CONFIG_CPU_BIG_ENDIAN 219 unsigned int pad:24, way:2, lsz:2, sz:4; 220#else 221 unsigned int sz:4, lsz:2, way:2, pad:24; 222#endif 223}; 224 225struct bcr_clust_cfg { 226#ifdef CONFIG_CPU_BIG_ENDIAN 227 unsigned int pad:7, c:1, num_entries:8, num_cores:8, ver:8; 228#else 229 unsigned int ver:8, num_cores:8, num_entries:8, c:1, pad:7; 230#endif 231}; 232 233struct bcr_volatile { 234#ifdef CONFIG_CPU_BIG_ENDIAN 235 unsigned int start:4, limit:4, pad:22, order:1, disable:1; 236#else 237 unsigned int disable:1, order:1, pad:22, limit:4, start:4; 238#endif 239}; 240 241struct bcr_mpy { 242#ifdef CONFIG_CPU_BIG_ENDIAN 243 unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8; 244#else 245 unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8; 246#endif 247}; 248 249struct bcr_iccm_arcompact { 250#ifdef CONFIG_CPU_BIG_ENDIAN 251 unsigned int base:16, pad:5, sz:3, ver:8; 252#else 253 unsigned int ver:8, sz:3, pad:5, base:16; 254#endif 255}; 256 257struct bcr_iccm_arcv2 { 258#ifdef CONFIG_CPU_BIG_ENDIAN 259 unsigned int pad:8, sz11:4, sz01:4, sz10:4, sz00:4, ver:8; 260#else 261 unsigned int ver:8, sz00:4, sz10:4, sz01:4, sz11:4, pad:8; 262#endif 263}; 264 265struct bcr_dccm_arcompact { 266#ifdef CONFIG_CPU_BIG_ENDIAN 267 unsigned int res:21, sz:3, ver:8; 268#else 269 unsigned int ver:8, sz:3, res:21; 270#endif 271}; 272 273struct bcr_dccm_arcv2 { 274#ifdef CONFIG_CPU_BIG_ENDIAN 275 unsigned int pad2:12, cyc:3, pad1:1, sz1:4, sz0:4, ver:8; 276#else 277 unsigned int ver:8, sz0:4, sz1:4, pad1:1, cyc:3, pad2:12; 278#endif 279}; 280 281/* ARCompact: Both SP and DP FPU BCRs have same format */ 282struct bcr_fp_arcompact { 283#ifdef CONFIG_CPU_BIG_ENDIAN 284 unsigned int fast:1, ver:8; 285#else 286 unsigned int ver:8, fast:1; 287#endif 288}; 289 290struct bcr_fp_arcv2 { 291#ifdef CONFIG_CPU_BIG_ENDIAN 292 unsigned int pad2:15, dp:1, pad1:7, sp:1, ver:8; 293#else 294 unsigned int ver:8, sp:1, pad1:7, dp:1, pad2:15; 295#endif 296}; 297 298struct bcr_actionpoint { 299#ifdef CONFIG_CPU_BIG_ENDIAN 300 unsigned int pad:21, min:1, num:2, ver:8; 301#else 302 unsigned int ver:8, num:2, min:1, pad:21; 303#endif 304}; 305 306#include <soc/arc/timers.h> 307 308struct bcr_bpu_arcompact { 309#ifdef CONFIG_CPU_BIG_ENDIAN 310 unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8; 311#else 312 unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19; 313#endif 314}; 315 316struct bcr_bpu_arcv2 { 317#ifdef CONFIG_CPU_BIG_ENDIAN 318 unsigned int pad:6, fbe:2, tqe:2, ts:4, ft:1, rse:2, pte:3, bce:3, ver:8; 319#else 320 unsigned int ver:8, bce:3, pte:3, rse:2, ft:1, ts:4, tqe:2, fbe:2, pad:6; 321#endif 322}; 323 324/* Error Protection Build: ECC/Parity */ 325struct bcr_erp { 326#ifdef CONFIG_CPU_BIG_ENDIAN 327 unsigned int pad3:5, mmu:3, pad2:4, ic:3, dc:3, pad1:6, ver:8; 328#else 329 unsigned int ver:8, pad1:6, dc:3, ic:3, pad2:4, mmu:3, pad3:5; 330#endif 331}; 332 333/* Error Protection Control */ 334struct ctl_erp { 335#ifdef CONFIG_CPU_BIG_ENDIAN 336 unsigned int pad2:27, mpd:1, pad1:2, dpd:1, dpi:1; 337#else 338 unsigned int dpi:1, dpd:1, pad1:2, mpd:1, pad2:27; 339#endif 340}; 341 342struct bcr_lpb { 343#ifdef CONFIG_CPU_BIG_ENDIAN 344 unsigned int pad:16, entries:8, ver:8; 345#else 346 unsigned int ver:8, entries:8, pad:16; 347#endif 348}; 349 350struct bcr_generic { 351#ifdef CONFIG_CPU_BIG_ENDIAN 352 unsigned int info:24, ver:8; 353#else 354 unsigned int ver:8, info:24; 355#endif 356}; 357 358static inline int is_isa_arcv2(void) 359{ 360 return IS_ENABLED(CONFIG_ISA_ARCV2); 361} 362 363static inline int is_isa_arcompact(void) 364{ 365 return IS_ENABLED(CONFIG_ISA_ARCOMPACT); 366} 367 368#endif /* __ASEMBLY__ */ 369 370#endif /* _ASM_ARC_ARCREGS_H */ 371