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xemu/target-xtensa/core-fsf/core-isa.h
Max Filippov 935f7a2b42 target-xtensa: add fsf core 
This is FSF big endian core implemented through linux overlay.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16 10:40:16 +00:00

362 lines
18 KiB
C
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/*
* Xtensa processor core configuration information.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1999-2006 Tensilica Inc.
*/
#ifndef _XTENSA_CORE_H
#define _XTENSA_CORE_H
/****************************************************************************
Parameters Useful for Any Code, USER or PRIVILEGED
****************************************************************************/
/*
* Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is
* configured, and a value of 0 otherwise. These macros are always defined.
*/
/*----------------------------------------------------------------------
ISA
----------------------------------------------------------------------*/
#define XCHAL_HAVE_BE 1 /* big-endian byte ordering */
#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */
#define XCHAL_NUM_AREGS 64 /* num of physical addr regs */
#define XCHAL_NUM_AREGS_LOG2 6 /* log2(XCHAL_NUM_AREGS) */
#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */
#define XCHAL_HAVE_DEBUG 1 /* debug option */
#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */
#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */
#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */
#define XCHAL_HAVE_MINMAX 0 /* MIN/MAX instructions */
#define XCHAL_HAVE_SEXT 0 /* SEXT instruction */
#define XCHAL_HAVE_CLAMPS 0 /* CLAMPS instruction */
#define XCHAL_HAVE_MUL16 0 /* MUL16S/MUL16U instructions */
#define XCHAL_HAVE_MUL32 0 /* MULL instruction */
#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */
#define XCHAL_HAVE_L32R 1 /* L32R instruction */
#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */
#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */
#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */
#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */
#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */
#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */
#define XCHAL_HAVE_ABS 1 /* ABS instruction */
/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */
/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */
#define XCHAL_HAVE_RELEASE_SYNC 0 /* L32AI/S32RI instructions */
#define XCHAL_HAVE_S32C1I 0 /* S32C1I instruction */
#define XCHAL_HAVE_SPECULATION 0 /* speculation */
#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */
#define XCHAL_NUM_CONTEXTS 1 /* */
#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */
#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */
#define XCHAL_HAVE_PRID 1 /* processor ID register */
#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */
#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */
#define XCHAL_HAVE_CP 0 /* CPENABLE reg (coprocessor) */
#define XCHAL_CP_MAXCFG 0 /* max allowed cp id plus one */
#define XCHAL_HAVE_MAC16 0 /* MAC16 package */
#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */
#define XCHAL_HAVE_FP 0 /* floating point pkg */
#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */
#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */
#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */
/*----------------------------------------------------------------------
MISC
----------------------------------------------------------------------*/
#define XCHAL_NUM_WRITEBUFFER_ENTRIES 4 /* size of write buffer */
#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */
#define XCHAL_DATA_WIDTH 4 /* data width in bytes */
/* In T1050, applies to selected core load and store instructions (see ISA): */
#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */
#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/
#define XCHAL_SW_VERSION 800002 /* sw version of this header */
#define XCHAL_CORE_ID "fsf" /* alphanum core name
(CoreID) set in the Xtensa
Processor Generator */
#define XCHAL_CORE_DESCRIPTION "fsf standard core"
#define XCHAL_BUILD_UNIQUE_ID 0x00006700 /* 22-bit sw build ID */
/*
* These definitions describe the hardware targeted by this software.
*/
#define XCHAL_HW_CONFIGID0 0xC103C3FF /* ConfigID hi 32 bits*/
#define XCHAL_HW_CONFIGID1 0x0C006700 /* ConfigID lo 32 bits*/
#define XCHAL_HW_VERSION_NAME "LX2.0.0" /* full version name */
#define XCHAL_HW_VERSION_MAJOR 2200 /* major ver# of targeted hw */
#define XCHAL_HW_VERSION_MINOR 0 /* minor ver# of targeted hw */
#define XTHAL_HW_REL_LX2 1
#define XTHAL_HW_REL_LX2_0 1
#define XTHAL_HW_REL_LX2_0_0 1
#define XCHAL_HW_CONFIGID_RELIABLE 1
/* If software targets a *range* of hardware versions, these are the bounds: */
#define XCHAL_HW_MIN_VERSION_MAJOR 2200 /* major v of earliest tgt hw */
#define XCHAL_HW_MIN_VERSION_MINOR 0 /* minor v of earliest tgt hw */
#define XCHAL_HW_MAX_VERSION_MAJOR 2200 /* major v of latest tgt hw */
#define XCHAL_HW_MAX_VERSION_MINOR 0 /* minor v of latest tgt hw */
/*----------------------------------------------------------------------
CACHE
----------------------------------------------------------------------*/
#define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
#define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
#define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
#define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */
#define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */
#define XCHAL_DCACHE_IS_WRITEBACK 0 /* writeback feature */
/****************************************************************************
Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
****************************************************************************/
#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
/*----------------------------------------------------------------------
CACHE
----------------------------------------------------------------------*/
#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */
/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */
/* Number of cache sets in log2(lines per way): */
#define XCHAL_ICACHE_SETWIDTH 8
#define XCHAL_DCACHE_SETWIDTH 8
/* Cache set associativity (number of ways): */
#define XCHAL_ICACHE_WAYS 2
#define XCHAL_DCACHE_WAYS 2
/* Cache features: */
#define XCHAL_ICACHE_LINE_LOCKABLE 0
#define XCHAL_DCACHE_LINE_LOCKABLE 0
#define XCHAL_ICACHE_ECC_PARITY 0
#define XCHAL_DCACHE_ECC_PARITY 0
/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */
#define XCHAL_CA_BITS 4
/*----------------------------------------------------------------------
INTERNAL I/D RAM/ROMs and XLMI
----------------------------------------------------------------------*/
#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */
#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */
#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */
#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */
#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/
#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */
/*----------------------------------------------------------------------
INTERRUPTS and TIMERS
----------------------------------------------------------------------*/
#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */
#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */
#define XCHAL_HAVE_NMI 0 /* non-maskable interrupt */
#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */
#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */
#define XCHAL_NUM_INTERRUPTS 17 /* number of interrupts */
#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */
#define XCHAL_NUM_EXTINTERRUPTS 10 /* num of external interrupts */
#define XCHAL_NUM_INTLEVELS 4 /* number of interrupt levels
(not including level zero) */
#define XCHAL_EXCM_LEVEL 1 /* level masked by PS.EXCM */
/* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */
/* Masks of interrupts at each interrupt level: */
#define XCHAL_INTLEVEL1_MASK 0x000064F9
#define XCHAL_INTLEVEL2_MASK 0x00008902
#define XCHAL_INTLEVEL3_MASK 0x00011204
#define XCHAL_INTLEVEL4_MASK 0x00000000
#define XCHAL_INTLEVEL5_MASK 0x00000000
#define XCHAL_INTLEVEL6_MASK 0x00000000
#define XCHAL_INTLEVEL7_MASK 0x00000000
/* Masks of interrupts at each range 1..n of interrupt levels: */
#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x000064F9
#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x0000EDFB
#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x0001FFFF
#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x0001FFFF
#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x0001FFFF
#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x0001FFFF
#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x0001FFFF
/* Level of each interrupt: */
#define XCHAL_INT0_LEVEL 1
#define XCHAL_INT1_LEVEL 2
#define XCHAL_INT2_LEVEL 3
#define XCHAL_INT3_LEVEL 1
#define XCHAL_INT4_LEVEL 1
#define XCHAL_INT5_LEVEL 1
#define XCHAL_INT6_LEVEL 1
#define XCHAL_INT7_LEVEL 1
#define XCHAL_INT8_LEVEL 2
#define XCHAL_INT9_LEVEL 3
#define XCHAL_INT10_LEVEL 1
#define XCHAL_INT11_LEVEL 2
#define XCHAL_INT12_LEVEL 3
#define XCHAL_INT13_LEVEL 1
#define XCHAL_INT14_LEVEL 1
#define XCHAL_INT15_LEVEL 2
#define XCHAL_INT16_LEVEL 3
#define XCHAL_DEBUGLEVEL 4 /* debug interrupt level */
#define XCHAL_HAVE_DEBUG_EXTERN_INT 0 /* OCD external db interrupt */
/* Type of each interrupt: */
#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT6_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT7_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT11_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT12_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT13_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT14_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT15_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT16_TYPE XTHAL_INTTYPE_SOFTWARE
/* Masks of interrupts for each type of interrupt: */
#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFFE0000
#define XCHAL_INTTYPE_MASK_SOFTWARE 0x0001E000
#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x00000380
#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000007F
#define XCHAL_INTTYPE_MASK_TIMER 0x00001C00
#define XCHAL_INTTYPE_MASK_NMI 0x00000000
#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000
/* Interrupt numbers assigned to specific interrupt sources: */
#define XCHAL_TIMER0_INTERRUPT 10 /* CCOMPARE0 */
#define XCHAL_TIMER1_INTERRUPT 11 /* CCOMPARE1 */
#define XCHAL_TIMER2_INTERRUPT 12 /* CCOMPARE2 */
#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED
/* Interrupt numbers for levels at which only one interrupt is configured: */
/* (There are many interrupts each at level(s) 1, 2, 3.) */
/*
* External interrupt vectors/levels.
* These macros describe how Xtensa processor interrupt numbers
* (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
* map to external BInterrupt<n> pins, for those interrupts
* configured as external (level-triggered, edge-triggered, or NMI).
* See the Xtensa processor databook for more details.
*/
/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */
#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */
#define XCHAL_EXTINT1_NUM 1 /* (intlevel 2) */
#define XCHAL_EXTINT2_NUM 2 /* (intlevel 3) */
#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */
#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */
#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */
#define XCHAL_EXTINT6_NUM 6 /* (intlevel 1) */
#define XCHAL_EXTINT7_NUM 7 /* (intlevel 1) */
#define XCHAL_EXTINT8_NUM 8 /* (intlevel 2) */
#define XCHAL_EXTINT9_NUM 9 /* (intlevel 3) */
/*----------------------------------------------------------------------
EXCEPTIONS and VECTORS
----------------------------------------------------------------------*/
#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture
number: 1 == XEA1 (old)
2 == XEA2 (new)
0 == XEAX (extern) */
#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */
#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */
#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */
#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */
#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */
#define XCHAL_RESET_VECTOR_VADDR 0xFE000020
#define XCHAL_RESET_VECTOR_PADDR 0xFE000020
#define XCHAL_USER_VECTOR_VADDR 0xD0000220
#define XCHAL_USER_VECTOR_PADDR 0x00000220
#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000200
#define XCHAL_KERNEL_VECTOR_PADDR 0x00000200
#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD0000290
#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x00000290
#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000
#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000
#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000240
#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000240
#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD0000250
#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x00000250
#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xFE000520
#define XCHAL_INTLEVEL4_VECTOR_PADDR 0xFE000520
#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR
#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL4_VECTOR_PADDR
/*----------------------------------------------------------------------
DEBUG
----------------------------------------------------------------------*/
#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */
#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */
#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */
#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */
/*----------------------------------------------------------------------
MMU
----------------------------------------------------------------------*/
/* See <xtensa/config/core-matmap.h> header file for more details. */
#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */
#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */
#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */
#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */
#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */
#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */
#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table
[autorefill] and protection)
usable for an MMU-based OS */
/* If none of the above last 4 are set, it's a custom TLB configuration. */
#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */
#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */
#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */
#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
#endif /* _XTENSA_CORE_CONFIGURATION_H */
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