core-isa.h (18660B)
1/* 2 * Xtensa processor core configuration information. 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1999-2006 Tensilica Inc. 9 */ 10 11#ifndef XTENSA_FSF_CORE_ISA_H 12#define XTENSA_FSF_CORE_ISA_H 13 14/**************************************************************************** 15 Parameters Useful for Any Code, USER or PRIVILEGED 16 ****************************************************************************/ 17 18/* 19 * Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is 20 * configured, and a value of 0 otherwise. These macros are always defined. 21 */ 22 23 24/*---------------------------------------------------------------------- 25 ISA 26 ----------------------------------------------------------------------*/ 27 28#define XCHAL_HAVE_BE 1 /* big-endian byte ordering */ 29#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */ 30#define XCHAL_NUM_AREGS 64 /* num of physical addr regs */ 31#define XCHAL_NUM_AREGS_LOG2 6 /* log2(XCHAL_NUM_AREGS) */ 32#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */ 33#define XCHAL_HAVE_DEBUG 1 /* debug option */ 34#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */ 35#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */ 36#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */ 37#define XCHAL_HAVE_MINMAX 0 /* MIN/MAX instructions */ 38#define XCHAL_HAVE_SEXT 0 /* SEXT instruction */ 39#define XCHAL_HAVE_CLAMPS 0 /* CLAMPS instruction */ 40#define XCHAL_HAVE_MUL16 0 /* MUL16S/MUL16U instructions */ 41#define XCHAL_HAVE_MUL32 0 /* MULL instruction */ 42#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */ 43#define XCHAL_HAVE_L32R 1 /* L32R instruction */ 44#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */ 45#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */ 46#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */ 47#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */ 48#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */ 49#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */ 50#define XCHAL_HAVE_ABS 1 /* ABS instruction */ 51/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */ 52/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */ 53#define XCHAL_HAVE_RELEASE_SYNC 0 /* L32AI/S32RI instructions */ 54#define XCHAL_HAVE_S32C1I 0 /* S32C1I instruction */ 55#define XCHAL_HAVE_SPECULATION 0 /* speculation */ 56#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */ 57#define XCHAL_NUM_CONTEXTS 1 /* */ 58#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */ 59#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */ 60#define XCHAL_HAVE_PRID 1 /* processor ID register */ 61#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */ 62#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */ 63#define XCHAL_HAVE_CP 0 /* CPENABLE reg (coprocessor) */ 64#define XCHAL_CP_MAXCFG 0 /* max allowed cp id plus one */ 65#define XCHAL_HAVE_MAC16 0 /* MAC16 package */ 66#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */ 67#define XCHAL_HAVE_FP 0 /* floating point pkg */ 68#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */ 69#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */ 70#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */ 71 72 73/*---------------------------------------------------------------------- 74 MISC 75 ----------------------------------------------------------------------*/ 76 77#define XCHAL_NUM_WRITEBUFFER_ENTRIES 4 /* size of write buffer */ 78#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */ 79#define XCHAL_DATA_WIDTH 4 /* data width in bytes */ 80/* In T1050, applies to selected core load and store instructions (see ISA): */ 81#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */ 82#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/ 83 84#define XCHAL_SW_VERSION 800002 /* sw version of this header */ 85 86#define XCHAL_CORE_ID "fsf" /* alphanum core name 87 (CoreID) set in the Xtensa 88 Processor Generator */ 89 90#define XCHAL_CORE_DESCRIPTION "fsf standard core" 91#define XCHAL_BUILD_UNIQUE_ID 0x00006700 /* 22-bit sw build ID */ 92 93/* 94 * These definitions describe the hardware targeted by this software. 95 */ 96#define XCHAL_HW_CONFIGID0 0xC103C3FF /* ConfigID hi 32 bits*/ 97#define XCHAL_HW_CONFIGID1 0x0C006700 /* ConfigID lo 32 bits*/ 98#define XCHAL_HW_VERSION_NAME "LX2.0.0" /* full version name */ 99#define XCHAL_HW_VERSION_MAJOR 2200 /* major ver# of targeted hw */ 100#define XCHAL_HW_VERSION_MINOR 0 /* minor ver# of targeted hw */ 101#define XTHAL_HW_REL_LX2 1 102#define XTHAL_HW_REL_LX2_0 1 103#define XTHAL_HW_REL_LX2_0_0 1 104#define XCHAL_HW_CONFIGID_RELIABLE 1 105/* If software targets a *range* of hardware versions, these are the bounds: */ 106#define XCHAL_HW_MIN_VERSION_MAJOR 2200 /* major v of earliest tgt hw */ 107#define XCHAL_HW_MIN_VERSION_MINOR 0 /* minor v of earliest tgt hw */ 108#define XCHAL_HW_MAX_VERSION_MAJOR 2200 /* major v of latest tgt hw */ 109#define XCHAL_HW_MAX_VERSION_MINOR 0 /* minor v of latest tgt hw */ 110 111 112/*---------------------------------------------------------------------- 113 CACHE 114 ----------------------------------------------------------------------*/ 115 116#define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */ 117#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */ 118#define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */ 119#define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */ 120 121#define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */ 122#define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */ 123 124#define XCHAL_DCACHE_IS_WRITEBACK 0 /* writeback feature */ 125 126 127 128 129/**************************************************************************** 130 Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code 131 ****************************************************************************/ 132 133 134#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY 135 136/*---------------------------------------------------------------------- 137 CACHE 138 ----------------------------------------------------------------------*/ 139 140#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */ 141 142/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */ 143 144/* Number of cache sets in log2(lines per way): */ 145#define XCHAL_ICACHE_SETWIDTH 8 146#define XCHAL_DCACHE_SETWIDTH 8 147 148/* Cache set associativity (number of ways): */ 149#define XCHAL_ICACHE_WAYS 2 150#define XCHAL_DCACHE_WAYS 2 151 152/* Cache features: */ 153#define XCHAL_ICACHE_LINE_LOCKABLE 0 154#define XCHAL_DCACHE_LINE_LOCKABLE 0 155#define XCHAL_ICACHE_ECC_PARITY 0 156#define XCHAL_DCACHE_ECC_PARITY 0 157 158/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */ 159#define XCHAL_CA_BITS 4 160 161 162/*---------------------------------------------------------------------- 163 INTERNAL I/D RAM/ROMs and XLMI 164 ----------------------------------------------------------------------*/ 165 166#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */ 167#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */ 168#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */ 169#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */ 170#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/ 171#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */ 172 173 174/*---------------------------------------------------------------------- 175 INTERRUPTS and TIMERS 176 ----------------------------------------------------------------------*/ 177 178#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */ 179#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */ 180#define XCHAL_HAVE_NMI 0 /* non-maskable interrupt */ 181#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */ 182#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */ 183#define XCHAL_NUM_INTERRUPTS 17 /* number of interrupts */ 184#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */ 185#define XCHAL_NUM_EXTINTERRUPTS 10 /* num of external interrupts */ 186#define XCHAL_NUM_INTLEVELS 4 /* number of interrupt levels 187 (not including level zero) */ 188#define XCHAL_EXCM_LEVEL 1 /* level masked by PS.EXCM */ 189 /* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */ 190 191/* Masks of interrupts at each interrupt level: */ 192#define XCHAL_INTLEVEL1_MASK 0x000064F9 193#define XCHAL_INTLEVEL2_MASK 0x00008902 194#define XCHAL_INTLEVEL3_MASK 0x00011204 195#define XCHAL_INTLEVEL4_MASK 0x00000000 196#define XCHAL_INTLEVEL5_MASK 0x00000000 197#define XCHAL_INTLEVEL6_MASK 0x00000000 198#define XCHAL_INTLEVEL7_MASK 0x00000000 199 200/* Masks of interrupts at each range 1..n of interrupt levels: */ 201#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x000064F9 202#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x0000EDFB 203#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x0001FFFF 204#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x0001FFFF 205#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x0001FFFF 206#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x0001FFFF 207#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x0001FFFF 208 209/* Level of each interrupt: */ 210#define XCHAL_INT0_LEVEL 1 211#define XCHAL_INT1_LEVEL 2 212#define XCHAL_INT2_LEVEL 3 213#define XCHAL_INT3_LEVEL 1 214#define XCHAL_INT4_LEVEL 1 215#define XCHAL_INT5_LEVEL 1 216#define XCHAL_INT6_LEVEL 1 217#define XCHAL_INT7_LEVEL 1 218#define XCHAL_INT8_LEVEL 2 219#define XCHAL_INT9_LEVEL 3 220#define XCHAL_INT10_LEVEL 1 221#define XCHAL_INT11_LEVEL 2 222#define XCHAL_INT12_LEVEL 3 223#define XCHAL_INT13_LEVEL 1 224#define XCHAL_INT14_LEVEL 1 225#define XCHAL_INT15_LEVEL 2 226#define XCHAL_INT16_LEVEL 3 227#define XCHAL_DEBUGLEVEL 4 /* debug interrupt level */ 228#define XCHAL_HAVE_DEBUG_EXTERN_INT 0 /* OCD external db interrupt */ 229 230/* Type of each interrupt: */ 231#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 232#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 233#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 234#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 235#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 236#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 237#define XCHAL_INT6_TYPE XTHAL_INTTYPE_EXTERN_LEVEL 238#define XCHAL_INT7_TYPE XTHAL_INTTYPE_EXTERN_EDGE 239#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_EDGE 240#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_EDGE 241#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER 242#define XCHAL_INT11_TYPE XTHAL_INTTYPE_TIMER 243#define XCHAL_INT12_TYPE XTHAL_INTTYPE_TIMER 244#define XCHAL_INT13_TYPE XTHAL_INTTYPE_SOFTWARE 245#define XCHAL_INT14_TYPE XTHAL_INTTYPE_SOFTWARE 246#define XCHAL_INT15_TYPE XTHAL_INTTYPE_SOFTWARE 247#define XCHAL_INT16_TYPE XTHAL_INTTYPE_SOFTWARE 248 249/* Masks of interrupts for each type of interrupt: */ 250#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFFE0000 251#define XCHAL_INTTYPE_MASK_SOFTWARE 0x0001E000 252#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x00000380 253#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000007F 254#define XCHAL_INTTYPE_MASK_TIMER 0x00001C00 255#define XCHAL_INTTYPE_MASK_NMI 0x00000000 256#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000 257 258/* Interrupt numbers assigned to specific interrupt sources: */ 259#define XCHAL_TIMER0_INTERRUPT 10 /* CCOMPARE0 */ 260#define XCHAL_TIMER1_INTERRUPT 11 /* CCOMPARE1 */ 261#define XCHAL_TIMER2_INTERRUPT 12 /* CCOMPARE2 */ 262#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED 263 264/* Interrupt numbers for levels at which only one interrupt is configured: */ 265/* (There are many interrupts each at level(s) 1, 2, 3.) */ 266 267 268/* 269 * External interrupt vectors/levels. 270 * These macros describe how Xtensa processor interrupt numbers 271 * (as numbered internally, eg. in INTERRUPT and INTENABLE registers) 272 * map to external BInterrupt<n> pins, for those interrupts 273 * configured as external (level-triggered, edge-triggered, or NMI). 274 * See the Xtensa processor databook for more details. 275 */ 276 277/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */ 278#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */ 279#define XCHAL_EXTINT1_NUM 1 /* (intlevel 2) */ 280#define XCHAL_EXTINT2_NUM 2 /* (intlevel 3) */ 281#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */ 282#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */ 283#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */ 284#define XCHAL_EXTINT6_NUM 6 /* (intlevel 1) */ 285#define XCHAL_EXTINT7_NUM 7 /* (intlevel 1) */ 286#define XCHAL_EXTINT8_NUM 8 /* (intlevel 2) */ 287#define XCHAL_EXTINT9_NUM 9 /* (intlevel 3) */ 288 289 290/*---------------------------------------------------------------------- 291 EXCEPTIONS and VECTORS 292 ----------------------------------------------------------------------*/ 293 294#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture 295 number: 1 == XEA1 (old) 296 2 == XEA2 (new) 297 0 == XEAX (extern) */ 298#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */ 299#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */ 300#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */ 301#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */ 302#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */ 303 304#define XCHAL_RESET_VECTOR_VADDR 0xFE000020 305#define XCHAL_RESET_VECTOR_PADDR 0xFE000020 306#define XCHAL_USER_VECTOR_VADDR 0xD0000220 307#define XCHAL_USER_VECTOR_PADDR 0x00000220 308#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000200 309#define XCHAL_KERNEL_VECTOR_PADDR 0x00000200 310#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD0000290 311#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x00000290 312#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000 313#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000 314#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000240 315#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000240 316#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD0000250 317#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x00000250 318#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xFE000520 319#define XCHAL_INTLEVEL4_VECTOR_PADDR 0xFE000520 320#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR 321#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL4_VECTOR_PADDR 322 323 324/*---------------------------------------------------------------------- 325 DEBUG 326 ----------------------------------------------------------------------*/ 327 328#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */ 329#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */ 330#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */ 331#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */ 332 333 334/*---------------------------------------------------------------------- 335 MMU 336 ----------------------------------------------------------------------*/ 337 338/* See <xtensa/config/core-matmap.h> header file for more details. */ 339 340#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */ 341#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */ 342#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */ 343#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */ 344#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */ 345#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */ 346#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table 347 [autorefill] and protection) 348 usable for an MMU-based OS */ 349/* If none of the above last 4 are set, it's a custom TLB configuration. */ 350#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ 351#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ 352 353#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */ 354#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */ 355#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */ 356 357#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */ 358 359 360#endif /* XTENSA_FSF_CORE_ISA_H */