425 lines
18 KiB
C
425 lines
18 KiB
C
/*
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* Xtensa processor core configuration information.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (c) 1999-2007 Tensilica Inc.
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*/
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#ifndef _XTENSA_CORE_CONFIGURATION_H
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#define _XTENSA_CORE_CONFIGURATION_H
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/****************************************************************************
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Parameters Useful for Any Code, USER or PRIVILEGED
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****************************************************************************/
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/*
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* Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is
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* configured, and a value of 0 otherwise. These macros are always defined.
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*/
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/*----------------------------------------------------------------------
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ISA
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----------------------------------------------------------------------*/
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#define XCHAL_HAVE_BE 0 /* big-endian byte ordering */
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#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */
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#define XCHAL_NUM_AREGS 32 /* num of physical addr regs */
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#define XCHAL_NUM_AREGS_LOG2 5 /* log2(XCHAL_NUM_AREGS) */
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#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */
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#define XCHAL_HAVE_DEBUG 1 /* debug option */
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#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */
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#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */
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#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */
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#define XCHAL_HAVE_MINMAX 1 /* MIN/MAX instructions */
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#define XCHAL_HAVE_SEXT 1 /* SEXT instruction */
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#define XCHAL_HAVE_CLAMPS 1 /* CLAMPS instruction */
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#define XCHAL_HAVE_MUL16 1 /* MUL16S/MUL16U instructions */
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#define XCHAL_HAVE_MUL32 1 /* MULL instruction */
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#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */
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#define XCHAL_HAVE_DIV32 1 /* QUOS/QUOU/REMS/REMU instructions */
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#define XCHAL_HAVE_L32R 1 /* L32R instruction */
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#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */
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#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */
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#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */
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#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */
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#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */
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#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */
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#define XCHAL_HAVE_ABS 1 /* ABS instruction */
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/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */
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/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */
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#define XCHAL_HAVE_RELEASE_SYNC 1 /* L32AI/S32RI instructions */
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#define XCHAL_HAVE_S32C1I 1 /* S32C1I instruction */
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#define XCHAL_HAVE_SPECULATION 0 /* speculation */
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#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */
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#define XCHAL_NUM_CONTEXTS 1 /* */
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#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */
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#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */
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#define XCHAL_HAVE_PRID 1 /* processor ID register */
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#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */
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#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */
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#define XCHAL_HAVE_CP 1 /* CPENABLE reg (coprocessor) */
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#define XCHAL_CP_MAXCFG 8 /* max allowed cp id plus one */
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#define XCHAL_HAVE_MAC16 1 /* MAC16 package */
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#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */
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#define XCHAL_HAVE_FP 0 /* floating point pkg */
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#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */
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#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */
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#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */
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/*----------------------------------------------------------------------
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MISC
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----------------------------------------------------------------------*/
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#define XCHAL_NUM_WRITEBUFFER_ENTRIES 8 /* size of write buffer */
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#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */
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#define XCHAL_DATA_WIDTH 4 /* data width in bytes */
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/* In T1050, applies to selected core load and store instructions (see ISA): */
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#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */
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#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/
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#define XCHAL_SW_VERSION 701001 /* sw version of this header */
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#define XCHAL_CORE_ID "dc232b" /* alphanum core name
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(CoreID) set in the Xtensa
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Processor Generator */
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#define XCHAL_CORE_DESCRIPTION "Diamond 232L Standard Core Rev.B (LE)"
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#define XCHAL_BUILD_UNIQUE_ID 0x0000BEEF /* 22-bit sw build ID */
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/*
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* These definitions describe the hardware targeted by this software.
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*/
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#define XCHAL_HW_CONFIGID0 0xC56307FE /* ConfigID hi 32 bits*/
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#define XCHAL_HW_CONFIGID1 0x0D40BEEF /* ConfigID lo 32 bits*/
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#define XCHAL_HW_VERSION_NAME "LX2.1.1" /* full version name */
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#define XCHAL_HW_VERSION_MAJOR 2210 /* major ver# of targeted hw */
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#define XCHAL_HW_VERSION_MINOR 1 /* minor ver# of targeted hw */
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#define XCHAL_HW_VERSION 221001 /* major*100+minor */
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#define XCHAL_HW_REL_LX2 1
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#define XCHAL_HW_REL_LX2_1 1
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#define XCHAL_HW_REL_LX2_1_1 1
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#define XCHAL_HW_CONFIGID_RELIABLE 1
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/* If software targets a *range* of hardware versions, these are the bounds: */
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#define XCHAL_HW_MIN_VERSION_MAJOR 2210 /* major v of earliest tgt hw */
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#define XCHAL_HW_MIN_VERSION_MINOR 1 /* minor v of earliest tgt hw */
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#define XCHAL_HW_MIN_VERSION 221001 /* earliest targeted hw */
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#define XCHAL_HW_MAX_VERSION_MAJOR 2210 /* major v of latest tgt hw */
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#define XCHAL_HW_MAX_VERSION_MINOR 1 /* minor v of latest tgt hw */
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#define XCHAL_HW_MAX_VERSION 221001 /* latest targeted hw */
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/*----------------------------------------------------------------------
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CACHE
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----------------------------------------------------------------------*/
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#define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */
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#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */
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#define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */
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#define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */
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#define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */
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#define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */
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#define XCHAL_DCACHE_IS_WRITEBACK 1 /* writeback feature */
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/****************************************************************************
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Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
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****************************************************************************/
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#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
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/*----------------------------------------------------------------------
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CACHE
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----------------------------------------------------------------------*/
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#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */
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/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */
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/* Number of cache sets in log2(lines per way): */
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#define XCHAL_ICACHE_SETWIDTH 7
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#define XCHAL_DCACHE_SETWIDTH 7
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/* Cache set associativity (number of ways): */
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#define XCHAL_ICACHE_WAYS 4
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#define XCHAL_DCACHE_WAYS 4
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/* Cache features: */
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#define XCHAL_ICACHE_LINE_LOCKABLE 1
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#define XCHAL_DCACHE_LINE_LOCKABLE 1
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#define XCHAL_ICACHE_ECC_PARITY 0
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#define XCHAL_DCACHE_ECC_PARITY 0
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/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */
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#define XCHAL_CA_BITS 4
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/*----------------------------------------------------------------------
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INTERNAL I/D RAM/ROMs and XLMI
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----------------------------------------------------------------------*/
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#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */
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#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */
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#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */
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#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */
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#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/
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#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */
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/*----------------------------------------------------------------------
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INTERRUPTS and TIMERS
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----------------------------------------------------------------------*/
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#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */
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#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */
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#define XCHAL_HAVE_NMI 1 /* non-maskable interrupt */
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#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */
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#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */
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#define XCHAL_NUM_INTERRUPTS 22 /* number of interrupts */
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#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */
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#define XCHAL_NUM_EXTINTERRUPTS 17 /* num of external interrupts */
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#define XCHAL_NUM_INTLEVELS 6 /* number of interrupt levels
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(not including level zero) */
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#define XCHAL_EXCM_LEVEL 3 /* level masked by PS.EXCM */
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/* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */
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/* Masks of interrupts at each interrupt level: */
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#define XCHAL_INTLEVEL1_MASK 0x001F80FF
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#define XCHAL_INTLEVEL2_MASK 0x00000100
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#define XCHAL_INTLEVEL3_MASK 0x00200E00
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#define XCHAL_INTLEVEL4_MASK 0x00001000
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#define XCHAL_INTLEVEL5_MASK 0x00002000
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#define XCHAL_INTLEVEL6_MASK 0x00000000
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#define XCHAL_INTLEVEL7_MASK 0x00004000
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/* Masks of interrupts at each range 1..n of interrupt levels: */
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#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x001F80FF
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#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x001F81FF
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#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x003F8FFF
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#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x003F9FFF
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#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x003FBFFF
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#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x003FBFFF
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#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x003FFFFF
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/* Level of each interrupt: */
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#define XCHAL_INT0_LEVEL 1
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#define XCHAL_INT1_LEVEL 1
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#define XCHAL_INT2_LEVEL 1
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#define XCHAL_INT3_LEVEL 1
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#define XCHAL_INT4_LEVEL 1
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#define XCHAL_INT5_LEVEL 1
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#define XCHAL_INT6_LEVEL 1
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#define XCHAL_INT7_LEVEL 1
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#define XCHAL_INT8_LEVEL 2
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#define XCHAL_INT9_LEVEL 3
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#define XCHAL_INT10_LEVEL 3
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#define XCHAL_INT11_LEVEL 3
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#define XCHAL_INT12_LEVEL 4
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#define XCHAL_INT13_LEVEL 5
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#define XCHAL_INT14_LEVEL 7
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#define XCHAL_INT15_LEVEL 1
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#define XCHAL_INT16_LEVEL 1
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#define XCHAL_INT17_LEVEL 1
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#define XCHAL_INT18_LEVEL 1
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#define XCHAL_INT19_LEVEL 1
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#define XCHAL_INT20_LEVEL 1
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#define XCHAL_INT21_LEVEL 3
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#define XCHAL_DEBUGLEVEL 6 /* debug interrupt level */
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#define XCHAL_HAVE_DEBUG_EXTERN_INT 1 /* OCD external db interrupt */
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#define XCHAL_NMILEVEL 7 /* NMI "level" (for use with
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EXCSAVE/EPS/EPC_n, RFI n) */
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/* Type of each interrupt: */
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#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT6_TYPE XTHAL_INTTYPE_TIMER
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#define XCHAL_INT7_TYPE XTHAL_INTTYPE_SOFTWARE
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#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER
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#define XCHAL_INT11_TYPE XTHAL_INTTYPE_SOFTWARE
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#define XCHAL_INT12_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
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#define XCHAL_INT13_TYPE XTHAL_INTTYPE_TIMER
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#define XCHAL_INT14_TYPE XTHAL_INTTYPE_NMI
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#define XCHAL_INT15_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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#define XCHAL_INT16_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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#define XCHAL_INT17_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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#define XCHAL_INT18_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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#define XCHAL_INT19_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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#define XCHAL_INT20_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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#define XCHAL_INT21_TYPE XTHAL_INTTYPE_EXTERN_EDGE
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/* Masks of interrupts for each type of interrupt: */
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#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFC00000
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#define XCHAL_INTTYPE_MASK_SOFTWARE 0x00000880
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#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x003F8000
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#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000133F
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#define XCHAL_INTTYPE_MASK_TIMER 0x00002440
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#define XCHAL_INTTYPE_MASK_NMI 0x00004000
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#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000
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/* Interrupt numbers assigned to specific interrupt sources: */
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#define XCHAL_TIMER0_INTERRUPT 6 /* CCOMPARE0 */
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#define XCHAL_TIMER1_INTERRUPT 10 /* CCOMPARE1 */
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#define XCHAL_TIMER2_INTERRUPT 13 /* CCOMPARE2 */
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#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED
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#define XCHAL_NMI_INTERRUPT 14 /* non-maskable interrupt */
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/* Interrupt numbers for levels at which only one interrupt is configured: */
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#define XCHAL_INTLEVEL2_NUM 8
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#define XCHAL_INTLEVEL4_NUM 12
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#define XCHAL_INTLEVEL5_NUM 13
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#define XCHAL_INTLEVEL7_NUM 14
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/* (There are many interrupts each at level(s) 1, 3.) */
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/*
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* External interrupt vectors/levels.
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* These macros describe how Xtensa processor interrupt numbers
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* (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
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* map to external BInterrupt<n> pins, for those interrupts
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* configured as external (level-triggered, edge-triggered, or NMI).
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* See the Xtensa processor databook for more details.
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*/
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/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */
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#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */
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#define XCHAL_EXTINT1_NUM 1 /* (intlevel 1) */
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#define XCHAL_EXTINT2_NUM 2 /* (intlevel 1) */
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#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */
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#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */
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#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */
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#define XCHAL_EXTINT6_NUM 8 /* (intlevel 2) */
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#define XCHAL_EXTINT7_NUM 9 /* (intlevel 3) */
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#define XCHAL_EXTINT8_NUM 12 /* (intlevel 4) */
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#define XCHAL_EXTINT9_NUM 14 /* (intlevel 7) */
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#define XCHAL_EXTINT10_NUM 15 /* (intlevel 1) */
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#define XCHAL_EXTINT11_NUM 16 /* (intlevel 1) */
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#define XCHAL_EXTINT12_NUM 17 /* (intlevel 1) */
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#define XCHAL_EXTINT13_NUM 18 /* (intlevel 1) */
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#define XCHAL_EXTINT14_NUM 19 /* (intlevel 1) */
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#define XCHAL_EXTINT15_NUM 20 /* (intlevel 1) */
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#define XCHAL_EXTINT16_NUM 21 /* (intlevel 3) */
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/*----------------------------------------------------------------------
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EXCEPTIONS and VECTORS
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----------------------------------------------------------------------*/
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#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture
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number: 1 == XEA1 (old)
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2 == XEA2 (new)
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0 == XEAX (extern) */
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#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */
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#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */
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#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */
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#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */
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#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */
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#define XCHAL_HAVE_VECTOR_SELECT 1 /* relocatable vectors */
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#define XCHAL_HAVE_VECBASE 1 /* relocatable vectors */
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#define XCHAL_VECBASE_RESET_VADDR 0xD0000000 /* VECBASE reset value */
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#define XCHAL_VECBASE_RESET_PADDR 0x00000000
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#define XCHAL_RESET_VECBASE_OVERLAP 0
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#define XCHAL_RESET_VECTOR0_VADDR 0xFE000000
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#define XCHAL_RESET_VECTOR0_PADDR 0xFE000000
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#define XCHAL_RESET_VECTOR1_VADDR 0xD8000500
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#define XCHAL_RESET_VECTOR1_PADDR 0x00000500
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#define XCHAL_RESET_VECTOR_VADDR 0xFE000000
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#define XCHAL_RESET_VECTOR_PADDR 0xFE000000
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#define XCHAL_USER_VECOFS 0x00000340
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#define XCHAL_USER_VECTOR_VADDR 0xD0000340
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#define XCHAL_USER_VECTOR_PADDR 0x00000340
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#define XCHAL_KERNEL_VECOFS 0x00000300
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#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000300
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#define XCHAL_KERNEL_VECTOR_PADDR 0x00000300
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#define XCHAL_DOUBLEEXC_VECOFS 0x000003C0
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#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD00003C0
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#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x000003C0
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#define XCHAL_WINDOW_OF4_VECOFS 0x00000000
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#define XCHAL_WINDOW_UF4_VECOFS 0x00000040
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#define XCHAL_WINDOW_OF8_VECOFS 0x00000080
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#define XCHAL_WINDOW_UF8_VECOFS 0x000000C0
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#define XCHAL_WINDOW_OF12_VECOFS 0x00000100
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#define XCHAL_WINDOW_UF12_VECOFS 0x00000140
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#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000
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#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000
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#define XCHAL_INTLEVEL2_VECOFS 0x00000180
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#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000180
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#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000180
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#define XCHAL_INTLEVEL3_VECOFS 0x000001C0
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#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD00001C0
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#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x000001C0
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#define XCHAL_INTLEVEL4_VECOFS 0x00000200
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#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xD0000200
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#define XCHAL_INTLEVEL4_VECTOR_PADDR 0x00000200
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#define XCHAL_INTLEVEL5_VECOFS 0x00000240
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#define XCHAL_INTLEVEL5_VECTOR_VADDR 0xD0000240
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#define XCHAL_INTLEVEL5_VECTOR_PADDR 0x00000240
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#define XCHAL_INTLEVEL6_VECOFS 0x00000280
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#define XCHAL_INTLEVEL6_VECTOR_VADDR 0xD0000280
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#define XCHAL_INTLEVEL6_VECTOR_PADDR 0x00000280
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#define XCHAL_DEBUG_VECOFS XCHAL_INTLEVEL6_VECOFS
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#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR
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#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL6_VECTOR_PADDR
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#define XCHAL_NMI_VECOFS 0x000002C0
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#define XCHAL_NMI_VECTOR_VADDR 0xD00002C0
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#define XCHAL_NMI_VECTOR_PADDR 0x000002C0
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#define XCHAL_INTLEVEL7_VECOFS XCHAL_NMI_VECOFS
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#define XCHAL_INTLEVEL7_VECTOR_VADDR XCHAL_NMI_VECTOR_VADDR
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#define XCHAL_INTLEVEL7_VECTOR_PADDR XCHAL_NMI_VECTOR_PADDR
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/*----------------------------------------------------------------------
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DEBUG
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----------------------------------------------------------------------*/
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#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */
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#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */
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#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */
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#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */
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/*----------------------------------------------------------------------
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MMU
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----------------------------------------------------------------------*/
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/* See core-matmap.h header file for more details. */
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#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */
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#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */
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#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */
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#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */
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#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */
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#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */
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#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table
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[autorefill] and protection)
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usable for an MMU-based OS */
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/* If none of the above last 4 are set, it's a custom TLB configuration. */
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#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
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#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
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#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */
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#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */
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#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */
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#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
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#endif /* _XTENSA_CORE_CONFIGURATION_H */
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