diff --git a/arch/xtensa/include/xtensa/core.h b/arch/xtensa/include/xtensa/core.h new file mode 100644 index 00000000000..8a17c7a2ff1 --- /dev/null +++ b/arch/xtensa/include/xtensa/core.h @@ -0,0 +1,1455 @@ +/**************************************************************************** + * arch/xtensa/include/core.h + * + * Leveraged to NuttX by: + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * + * This file derives from code provided Cadence Design Systems, Inc.: + * + * Copyright (c) 2005-2014 Cadence Design Systems, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + ****************************************************************************/ + +/* This header file is sometimes referred to as the "compile-time HAL" or CHAL. + * It pulls definitions tailored for a specific Xtensa processor configuration. + * + * Sources for binaries meant to be configuration-independent generally avoid + * including this file (they may use the configuration-specific HAL library). + * It is normal for the HAL library source itself to include this file. + */ + +#ifndef __ARCH_XTENSA_INCUDE_XTENSA_CORE_H +#define __ARCH_XTENSA_INCUDE_XTENSA_CORE_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/* Configuration independent definitions: */ + +#warning REVISIT: Missing header files: +//#include +//#include + +/* Configuration specific definitions: */ + +#include +//#include +//#include + +#ifdef __ASSEMBLY__ +//# include +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* General ******************************************************************/ + +/* Separators for macros that expand into arrays. + * These can be predefined by files that #include this one, + * when different separators are required. + */ + +/* Element separator for macros that expand into 1-dimensional arrays: */ +#ifndef XCHAL_SEP +# define XCHAL_SEP , +#endif + +/* Array separator for macros that expand into 2-dimensional arrays: */ +#ifndef XCHAL_SEP2 +# define XCHAL_SEP2 },{ +#endif + +/* ISA **********************************************************************/ + +#if XCHAL_HAVE_BE +# define XCHAL_HAVE_LE 0 +# define XCHAL_MEMORY_ORDER XTHAL_BIGENDIAN +#else +# define XCHAL_HAVE_LE 1 +# define XCHAL_MEMORY_ORDER XTHAL_LITTLEENDIAN +#endif + +/* Interrupts ***************************************************************/ + +/* Indexing macros: */ + +#define _XCHAL_INTLEVEL_MASK(n) XCHAL_INTLEVEL ## n ## _MASK +#define XCHAL_INTLEVEL_MASK(n) _XCHAL_INTLEVEL_MASK(n) /* n = 0 .. 15 */ +#define _XCHAL_INTLEVEL_ANDBELOWMASK(n) XCHAL_INTLEVEL ## n ## _ANDBELOW_MASK +#define XCHAL_INTLEVEL_ANDBELOW_MASK(n) _XCHAL_INTLEVEL_ANDBELOWMASK(n) /* n = 0 .. 15 */ +#define _XCHAL_INTLEVEL_NUM(n) XCHAL_INTLEVEL ## n ## _NUM +#define XCHAL_INTLEVEL_NUM(n) _XCHAL_INTLEVEL_NUM(n) /* n = 0 .. 15 */ +#define _XCHAL_INT_LEVEL(n) XCHAL_INT ## n ## _LEVEL +#define XCHAL_INT_LEVEL(n) _XCHAL_INT_LEVEL(n) /* n = 0 .. 31 */ +#define _XCHAL_INT_TYPE(n) XCHAL_INT ## n ## _TYPE +#define XCHAL_INT_TYPE(n) _XCHAL_INT_TYPE(n) /* n = 0 .. 31 */ +#define _XCHAL_TIMER_INTERRUPT(n) XCHAL_TIMER ## n ## _INTERRUPT +#define XCHAL_TIMER_INTERRUPT(n) _XCHAL_TIMER_INTERRUPT(n) /* n = 0 .. 3 */ + +#define XCHAL_HAVE_HIGHLEVEL_INTERRUPTS XCHAL_HAVE_HIGHPRI_INTERRUPTS +#define XCHAL_NUM_LOWPRI_LEVELS 1 /* Number of low-priority + * interrupt levels (always 1) */ +#define XCHAL_FIRST_HIGHPRI_LEVEL (XCHAL_NUM_LOWPRI_LEVELS+1) + /* Level of first high-priority + * interrupt (always 2) */ + +/* Note: 1 <= LOWPRI_LEVELS <= EXCM_LEVEL < DEBUGLEVEL <= NUM_INTLEVELS < NMILEVEL <= 15 */ + +/* These values are constant for existing Xtensa processor implementations: */ + +#define XCHAL_INTLEVEL0_MASK 0x00000000 +#define XCHAL_INTLEVEL8_MASK 0x00000000 +#define XCHAL_INTLEVEL9_MASK 0x00000000 +#define XCHAL_INTLEVEL10_MASK 0x00000000 +#define XCHAL_INTLEVEL11_MASK 0x00000000 +#define XCHAL_INTLEVEL12_MASK 0x00000000 +#define XCHAL_INTLEVEL13_MASK 0x00000000 +#define XCHAL_INTLEVEL14_MASK 0x00000000 +#define XCHAL_INTLEVEL15_MASK 0x00000000 + +/* Array of masks of interrupts at each interrupt level: */ + +#define XCHAL_INTLEVEL_MASKS XCHAL_INTLEVEL0_MASK \ + XCHAL_SEP XCHAL_INTLEVEL1_MASK \ + XCHAL_SEP XCHAL_INTLEVEL2_MASK \ + XCHAL_SEP XCHAL_INTLEVEL3_MASK \ + XCHAL_SEP XCHAL_INTLEVEL4_MASK \ + XCHAL_SEP XCHAL_INTLEVEL5_MASK \ + XCHAL_SEP XCHAL_INTLEVEL6_MASK \ + XCHAL_SEP XCHAL_INTLEVEL7_MASK \ + XCHAL_SEP XCHAL_INTLEVEL8_MASK \ + XCHAL_SEP XCHAL_INTLEVEL9_MASK \ + XCHAL_SEP XCHAL_INTLEVEL10_MASK \ + XCHAL_SEP XCHAL_INTLEVEL11_MASK \ + XCHAL_SEP XCHAL_INTLEVEL12_MASK \ + XCHAL_SEP XCHAL_INTLEVEL13_MASK \ + XCHAL_SEP XCHAL_INTLEVEL14_MASK \ + XCHAL_SEP XCHAL_INTLEVEL15_MASK + +/* These values are constant for existing Xtensa processor implementations: */ + +#define XCHAL_INTLEVEL0_ANDBELOW_MASK 0x00000000 +#define XCHAL_INTLEVEL8_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL9_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL10_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL11_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL12_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL13_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL14_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK +#define XCHAL_INTLEVEL15_ANDBELOW_MASK XCHAL_INTLEVEL7_ANDBELOW_MASK + +/* Mask of all low-priority interrupts: */ + +#define XCHAL_LOWPRI_MASK XCHAL_INTLEVEL1_ANDBELOW_MASK + +/* Mask of all interrupts masked by PS.EXCM (or CEXCM): */ + +#define XCHAL_EXCM_MASK XCHAL_INTLEVEL_ANDBELOW_MASK(XCHAL_EXCM_LEVEL) + +/* Array of masks of interrupts at each range 1..n of interrupt levels: */ + +#define XCHAL_INTLEVEL_ANDBELOW_MASKS XCHAL_INTLEVEL0_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL1_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL2_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL3_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL4_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL5_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL6_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL7_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL8_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL9_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL10_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL11_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL12_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL13_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL14_ANDBELOW_MASK \ + XCHAL_SEP XCHAL_INTLEVEL15_ANDBELOW_MASK + +#if 0 /* XCHAL_HAVE_NMI */ + +/* NMI "interrupt level" (for use with EXCSAVE_n, EPS_n, EPC_n, RFI n): */ + +# define XCHAL_NMILEVEL (XCHAL_NUM_INTLEVELS+1) +#endif + +/* Array of levels of each possible interrupt: */ + +#define XCHAL_INT_LEVELS XCHAL_INT0_LEVEL \ + XCHAL_SEP XCHAL_INT1_LEVEL \ + XCHAL_SEP XCHAL_INT2_LEVEL \ + XCHAL_SEP XCHAL_INT3_LEVEL \ + XCHAL_SEP XCHAL_INT4_LEVEL \ + XCHAL_SEP XCHAL_INT5_LEVEL \ + XCHAL_SEP XCHAL_INT6_LEVEL \ + XCHAL_SEP XCHAL_INT7_LEVEL \ + XCHAL_SEP XCHAL_INT8_LEVEL \ + XCHAL_SEP XCHAL_INT9_LEVEL \ + XCHAL_SEP XCHAL_INT10_LEVEL \ + XCHAL_SEP XCHAL_INT11_LEVEL \ + XCHAL_SEP XCHAL_INT12_LEVEL \ + XCHAL_SEP XCHAL_INT13_LEVEL \ + XCHAL_SEP XCHAL_INT14_LEVEL \ + XCHAL_SEP XCHAL_INT15_LEVEL \ + XCHAL_SEP XCHAL_INT16_LEVEL \ + XCHAL_SEP XCHAL_INT17_LEVEL \ + XCHAL_SEP XCHAL_INT18_LEVEL \ + XCHAL_SEP XCHAL_INT19_LEVEL \ + XCHAL_SEP XCHAL_INT20_LEVEL \ + XCHAL_SEP XCHAL_INT21_LEVEL \ + XCHAL_SEP XCHAL_INT22_LEVEL \ + XCHAL_SEP XCHAL_INT23_LEVEL \ + XCHAL_SEP XCHAL_INT24_LEVEL \ + XCHAL_SEP XCHAL_INT25_LEVEL \ + XCHAL_SEP XCHAL_INT26_LEVEL \ + XCHAL_SEP XCHAL_INT27_LEVEL \ + XCHAL_SEP XCHAL_INT28_LEVEL \ + XCHAL_SEP XCHAL_INT29_LEVEL \ + XCHAL_SEP XCHAL_INT30_LEVEL \ + XCHAL_SEP XCHAL_INT31_LEVEL + +/* Array of types of each possible interrupt: */ + +#define XCHAL_INT_TYPES XCHAL_INT0_TYPE \ + XCHAL_SEP XCHAL_INT1_TYPE \ + XCHAL_SEP XCHAL_INT2_TYPE \ + XCHAL_SEP XCHAL_INT3_TYPE \ + XCHAL_SEP XCHAL_INT4_TYPE \ + XCHAL_SEP XCHAL_INT5_TYPE \ + XCHAL_SEP XCHAL_INT6_TYPE \ + XCHAL_SEP XCHAL_INT7_TYPE \ + XCHAL_SEP XCHAL_INT8_TYPE \ + XCHAL_SEP XCHAL_INT9_TYPE \ + XCHAL_SEP XCHAL_INT10_TYPE \ + XCHAL_SEP XCHAL_INT11_TYPE \ + XCHAL_SEP XCHAL_INT12_TYPE \ + XCHAL_SEP XCHAL_INT13_TYPE \ + XCHAL_SEP XCHAL_INT14_TYPE \ + XCHAL_SEP XCHAL_INT15_TYPE \ + XCHAL_SEP XCHAL_INT16_TYPE \ + XCHAL_SEP XCHAL_INT17_TYPE \ + XCHAL_SEP XCHAL_INT18_TYPE \ + XCHAL_SEP XCHAL_INT19_TYPE \ + XCHAL_SEP XCHAL_INT20_TYPE \ + XCHAL_SEP XCHAL_INT21_TYPE \ + XCHAL_SEP XCHAL_INT22_TYPE \ + XCHAL_SEP XCHAL_INT23_TYPE \ + XCHAL_SEP XCHAL_INT24_TYPE \ + XCHAL_SEP XCHAL_INT25_TYPE \ + XCHAL_SEP XCHAL_INT26_TYPE \ + XCHAL_SEP XCHAL_INT27_TYPE \ + XCHAL_SEP XCHAL_INT28_TYPE \ + XCHAL_SEP XCHAL_INT29_TYPE \ + XCHAL_SEP XCHAL_INT30_TYPE \ + XCHAL_SEP XCHAL_INT31_TYPE + +/* Array of masks of interrupts for each type of interrupt: */ + +#define XCHAL_INTTYPE_MASKS XCHAL_INTTYPE_MASK_UNCONFIGURED \ + XCHAL_SEP XCHAL_INTTYPE_MASK_SOFTWARE \ + XCHAL_SEP XCHAL_INTTYPE_MASK_EXTERN_EDGE \ + XCHAL_SEP XCHAL_INTTYPE_MASK_EXTERN_LEVEL \ + XCHAL_SEP XCHAL_INTTYPE_MASK_TIMER \ + XCHAL_SEP XCHAL_INTTYPE_MASK_NMI \ + XCHAL_SEP XCHAL_INTTYPE_MASK_WRITE_ERROR + +/* Interrupts that can be cleared using the INTCLEAR special register: */ + +#define XCHAL_INTCLEARABLE_MASK \ + (XCHAL_INTTYPE_MASK_SOFTWARE+XCHAL_INTTYPE_MASK_EXTERN_EDGE+XCHAL_INTTYPE_MASK_WRITE_ERROR) + +/* Interrupts that can be triggered using the INTSET special register: */ + +#define XCHAL_INTSETTABLE_MASK XCHAL_INTTYPE_MASK_SOFTWARE + +/* Array of interrupts assigned to each timer (CCOMPARE0 to CCOMPARE3): */ + +#define XCHAL_TIMER_INTERRUPTS XCHAL_TIMER0_INTERRUPT \ + XCHAL_SEP XCHAL_TIMER1_INTERRUPT \ + XCHAL_SEP XCHAL_TIMER2_INTERRUPT \ + XCHAL_SEP XCHAL_TIMER3_INTERRUPT + +/* For backward compatibility and for the array macros, define macros for + * each unconfigured interrupt number (unfortunately, the value of + * XTHAL_INTTYPE_UNCONFIGURED is not zero): + */ + +#if XCHAL_NUM_INTERRUPTS == 0 +# define XCHAL_INT0_LEVEL 0 +# define XCHAL_INT0_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 1 +# define XCHAL_INT1_LEVEL 0 +# define XCHAL_INT1_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 2 +# define XCHAL_INT2_LEVEL 0 +# define XCHAL_INT2_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 3 +# define XCHAL_INT3_LEVEL 0 +# define XCHAL_INT3_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 4 +# define XCHAL_INT4_LEVEL 0 +# define XCHAL_INT4_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 5 +# define XCHAL_INT5_LEVEL 0 +# define XCHAL_INT5_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 6 +# define XCHAL_INT6_LEVEL 0 +# define XCHAL_INT6_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 7 +# define XCHAL_INT7_LEVEL 0 +# define XCHAL_INT7_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 8 +# define XCHAL_INT8_LEVEL 0 +# define XCHAL_INT8_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 9 +# define XCHAL_INT9_LEVEL 0 +# define XCHAL_INT9_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 10 +# define XCHAL_INT10_LEVEL 0 +# define XCHAL_INT10_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 11 +# define XCHAL_INT11_LEVEL 0 +# define XCHAL_INT11_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 12 +# define XCHAL_INT12_LEVEL 0 +# define XCHAL_INT12_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 13 +# define XCHAL_INT13_LEVEL 0 +# define XCHAL_INT13_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 14 +# define XCHAL_INT14_LEVEL 0 +# define XCHAL_INT14_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 15 +# define XCHAL_INT15_LEVEL 0 +# define XCHAL_INT15_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 16 +# define XCHAL_INT16_LEVEL 0 +# define XCHAL_INT16_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 17 +# define XCHAL_INT17_LEVEL 0 +# define XCHAL_INT17_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 18 +# define XCHAL_INT18_LEVEL 0 +# define XCHAL_INT18_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 19 +# define XCHAL_INT19_LEVEL 0 +# define XCHAL_INT19_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 20 +# define XCHAL_INT20_LEVEL 0 +# define XCHAL_INT20_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 21 +# define XCHAL_INT21_LEVEL 0 +# define XCHAL_INT21_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 22 +# define XCHAL_INT22_LEVEL 0 +# define XCHAL_INT22_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 23 +# define XCHAL_INT23_LEVEL 0 +# define XCHAL_INT23_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 24 +# define XCHAL_INT24_LEVEL 0 +# define XCHAL_INT24_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 25 +# define XCHAL_INT25_LEVEL 0 +# define XCHAL_INT25_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 26 +# define XCHAL_INT26_LEVEL 0 +# define XCHAL_INT26_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 27 +# define XCHAL_INT27_LEVEL 0 +# define XCHAL_INT27_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 28 +# define XCHAL_INT28_LEVEL 0 +# define XCHAL_INT28_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 29 +# define XCHAL_INT29_LEVEL 0 +# define XCHAL_INT29_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 30 +# define XCHAL_INT30_LEVEL 0 +# define XCHAL_INT30_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif +#if XCHAL_NUM_INTERRUPTS <= 31 +# define XCHAL_INT31_LEVEL 0 +# define XCHAL_INT31_TYPE XTHAL_INTTYPE_UNCONFIGURED +#endif + +/* Masks and levels corresponding to each *external* interrupt. */ + +#define XCHAL_EXTINT0_MASK (1 << XCHAL_EXTINT0_NUM) +#define XCHAL_EXTINT0_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT0_NUM) +#define XCHAL_EXTINT1_MASK (1 << XCHAL_EXTINT1_NUM) +#define XCHAL_EXTINT1_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT1_NUM) +#define XCHAL_EXTINT2_MASK (1 << XCHAL_EXTINT2_NUM) +#define XCHAL_EXTINT2_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT2_NUM) +#define XCHAL_EXTINT3_MASK (1 << XCHAL_EXTINT3_NUM) +#define XCHAL_EXTINT3_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT3_NUM) +#define XCHAL_EXTINT4_MASK (1 << XCHAL_EXTINT4_NUM) +#define XCHAL_EXTINT4_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT4_NUM) +#define XCHAL_EXTINT5_MASK (1 << XCHAL_EXTINT5_NUM) +#define XCHAL_EXTINT5_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT5_NUM) +#define XCHAL_EXTINT6_MASK (1 << XCHAL_EXTINT6_NUM) +#define XCHAL_EXTINT6_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT6_NUM) +#define XCHAL_EXTINT7_MASK (1 << XCHAL_EXTINT7_NUM) +#define XCHAL_EXTINT7_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT7_NUM) +#define XCHAL_EXTINT8_MASK (1 << XCHAL_EXTINT8_NUM) +#define XCHAL_EXTINT8_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT8_NUM) +#define XCHAL_EXTINT9_MASK (1 << XCHAL_EXTINT9_NUM) +#define XCHAL_EXTINT9_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT9_NUM) +#define XCHAL_EXTINT10_MASK (1 << XCHAL_EXTINT10_NUM) +#define XCHAL_EXTINT10_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT10_NUM) +#define XCHAL_EXTINT11_MASK (1 << XCHAL_EXTINT11_NUM) +#define XCHAL_EXTINT11_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT11_NUM) +#define XCHAL_EXTINT12_MASK (1 << XCHAL_EXTINT12_NUM) +#define XCHAL_EXTINT12_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT12_NUM) +#define XCHAL_EXTINT13_MASK (1 << XCHAL_EXTINT13_NUM) +#define XCHAL_EXTINT13_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT13_NUM) +#define XCHAL_EXTINT14_MASK (1 << XCHAL_EXTINT14_NUM) +#define XCHAL_EXTINT14_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT14_NUM) +#define XCHAL_EXTINT15_MASK (1 << XCHAL_EXTINT15_NUM) +#define XCHAL_EXTINT15_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT15_NUM) +#define XCHAL_EXTINT16_MASK (1 << XCHAL_EXTINT16_NUM) +#define XCHAL_EXTINT16_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT16_NUM) +#define XCHAL_EXTINT17_MASK (1 << XCHAL_EXTINT17_NUM) +#define XCHAL_EXTINT17_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT17_NUM) +#define XCHAL_EXTINT18_MASK (1 << XCHAL_EXTINT18_NUM) +#define XCHAL_EXTINT18_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT18_NUM) +#define XCHAL_EXTINT19_MASK (1 << XCHAL_EXTINT19_NUM) +#define XCHAL_EXTINT19_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT19_NUM) +#define XCHAL_EXTINT20_MASK (1 << XCHAL_EXTINT20_NUM) +#define XCHAL_EXTINT20_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT20_NUM) +#define XCHAL_EXTINT21_MASK (1 << XCHAL_EXTINT21_NUM) +#define XCHAL_EXTINT21_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT21_NUM) +#define XCHAL_EXTINT22_MASK (1 << XCHAL_EXTINT22_NUM) +#define XCHAL_EXTINT22_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT22_NUM) +#define XCHAL_EXTINT23_MASK (1 << XCHAL_EXTINT23_NUM) +#define XCHAL_EXTINT23_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT23_NUM) +#define XCHAL_EXTINT24_MASK (1 << XCHAL_EXTINT24_NUM) +#define XCHAL_EXTINT24_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT24_NUM) +#define XCHAL_EXTINT25_MASK (1 << XCHAL_EXTINT25_NUM) +#define XCHAL_EXTINT25_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT25_NUM) +#define XCHAL_EXTINT26_MASK (1 << XCHAL_EXTINT26_NUM) +#define XCHAL_EXTINT26_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT26_NUM) +#define XCHAL_EXTINT27_MASK (1 << XCHAL_EXTINT27_NUM) +#define XCHAL_EXTINT27_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT27_NUM) +#define XCHAL_EXTINT28_MASK (1 << XCHAL_EXTINT28_NUM) +#define XCHAL_EXTINT28_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT28_NUM) +#define XCHAL_EXTINT29_MASK (1 << XCHAL_EXTINT29_NUM) +#define XCHAL_EXTINT29_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT29_NUM) +#define XCHAL_EXTINT30_MASK (1 << XCHAL_EXTINT30_NUM) +#define XCHAL_EXTINT30_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT30_NUM) +#define XCHAL_EXTINT31_MASK (1 << XCHAL_EXTINT31_NUM) +#define XCHAL_EXTINT31_LEVEL XCHAL_INT_LEVEL(XCHAL_EXTINT31_NUM) + +/* Exceptions and Vectors ***************************************************/ + +/* For backward compatibility ONLY -- DO NOT USE (will be removed in future release): */ + +#define XCHAL_HAVE_OLD_EXC_ARCH XCHAL_HAVE_XEA1 /* (DEPRECATED) 1 if + * old exception + * architecture (XEA1), + * 0 otherwise (eg. + * XEA2) */ +#define XCHAL_HAVE_EXCM XCHAL_HAVE_XEA2 /* (DEPRECATED) 1 if + * PS.EXCM bit exists + * (currently equals + * XCHAL_HAVE_TLBS) */ +#ifdef XCHAL_USER_VECTOR_VADDR +# define XCHAL_PROGRAMEXC_VECTOR_VADDR XCHAL_USER_VECTOR_VADDR +# define XCHAL_USEREXC_VECTOR_VADDR XCHAL_USER_VECTOR_VADDR +#endif +#ifdef XCHAL_USER_VECTOR_PADDR +# define XCHAL_PROGRAMEXC_VECTOR_PADDR XCHAL_USER_VECTOR_PADDR +# define XCHAL_USEREXC_VECTOR_PADDR XCHAL_USER_VECTOR_PADDR +#endif +#ifdef XCHAL_KERNEL_VECTOR_VADDR +# define XCHAL_STACKEDEXC_VECTOR_VADDR XCHAL_KERNEL_VECTOR_VADDR +# define XCHAL_KERNELEXC_VECTOR_VADDR XCHAL_KERNEL_VECTOR_VADDR +#endif +#ifdef XCHAL_KERNEL_VECTOR_PADDR +# define XCHAL_STACKEDEXC_VECTOR_PADDR XCHAL_KERNEL_VECTOR_PADDR +# define XCHAL_KERNELEXC_VECTOR_PADDR XCHAL_KERNEL_VECTOR_PADDR +#endif + +#if 0 +# if XCHAL_HAVE_DEBUG +# define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL_VECTOR_VADDR(XCHAL_DEBUGLEVEL) + +/* This one should only get defined if the corresponding intlevel paddr macro exists: */ + +# define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL_VECTOR_PADDR(XCHAL_DEBUGLEVEL) +# endif +#endif + +/* Indexing macros: */ + +#define _XCHAL_INTLEVEL_VECTOR_VADDR(n) XCHAL_INTLEVEL ## n ## _VECTOR_VADDR +#define XCHAL_INTLEVEL_VECTOR_VADDR(n) _XCHAL_INTLEVEL_VECTOR_VADDR(n) /* n = 0 .. 15 */ + +/* General Exception Causes: + * + * Values of EXCCAUSE special register set by general exceptions, + * which vector to the user, kernel, or double-exception vectors. + * + * DEPRECATED. Please use the equivalent EXCCAUSE_xxx macros + * defined in . (Note that these have slightly + * different names, they don't just have the XCHAL_ prefix removed.) + */ + +#define XCHAL_EXCCAUSE_ILLEGAL_INSTRUCTION 0 /* Illegal Instruction */ +#define XCHAL_EXCCAUSE_SYSTEM_CALL 1 /* System Call */ +#define XCHAL_EXCCAUSE_INSTRUCTION_FETCH_ERROR 2 /* Instruction Fetch Error */ +#define XCHAL_EXCCAUSE_LOAD_STORE_ERROR 3 /* Load Store Error */ +#define XCHAL_EXCCAUSE_LEVEL1_INTERRUPT 4 /* Level 1 Interrupt */ +#define XCHAL_EXCCAUSE_ALLOCA 5 /* Stack Extension Assist */ +#define XCHAL_EXCCAUSE_INTEGER_DIVIDE_BY_ZERO 6 /* Integer Divide by Zero */ +#define XCHAL_EXCCAUSE_SPECULATION 7 /* Speculation */ +#define XCHAL_EXCCAUSE_PRIVILEGED 8 /* Privileged Instruction */ +#define XCHAL_EXCCAUSE_UNALIGNED 9 /* Unaligned Load Store */ + /* 10..15 reserved */ +#define XCHAL_EXCCAUSE_ITLB_MISS 16 /* ITlb Miss Exception */ +#define XCHAL_EXCCAUSE_ITLB_MULTIHIT 17 /* ITlb Mutltihit Exception */ +#define XCHAL_EXCCAUSE_ITLB_PRIVILEGE 18 /* ITlb Privilege Exception */ +#define XCHAL_EXCCAUSE_ITLB_SIZE_RESTRICTION 19 /* ITlb Size Restriction Exception */ +#define XCHAL_EXCCAUSE_FETCH_CACHE_ATTRIBUTE 20 /* Fetch Cache Attribute Exception */ + /* 21..23 reserved */ +#define XCHAL_EXCCAUSE_DTLB_MISS 24 /* DTlb Miss Exception */ +#define XCHAL_EXCCAUSE_DTLB_MULTIHIT 25 /* DTlb Multihit Exception */ +#define XCHAL_EXCCAUSE_DTLB_PRIVILEGE 26 /* DTlb Privilege Exception */ +#define XCHAL_EXCCAUSE_DTLB_SIZE_RESTRICTION 27 /* DTlb Size Restriction Exception */ +#define XCHAL_EXCCAUSE_LOAD_CACHE_ATTRIBUTE 28 /* Load Cache Attribute Exception */ +#define XCHAL_EXCCAUSE_STORE_CACHE_ATTRIBUTE 29 /* Store Cache Attribute Exception */ + /* 30..31 reserved */ +#define XCHAL_EXCCAUSE_COPROCESSOR0_DISABLED 32 /* Coprocessor 0 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR1_DISABLED 33 /* Coprocessor 1 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR2_DISABLED 34 /* Coprocessor 2 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR3_DISABLED 35 /* Coprocessor 3 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR4_DISABLED 36 /* Coprocessor 4 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR5_DISABLED 37 /* Coprocessor 5 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR6_DISABLED 38 /* Coprocessor 6 disabled */ +#define XCHAL_EXCCAUSE_COPROCESSOR7_DISABLED 39 /* Coprocessor 7 disabled */ + /* 40..63 reserved */ + +/* Miscellaneous special register fields. + * + * For each special register, and each field within each register: + * XCHAL__VALIDMASK is the set of bits defined in the register. + * XCHAL___BITS is the number of bits in the field. + * XCHAL___NUM is 2^bits, the number of possible values + * of the field. + * XCHAL___SHIFT is the position of the field within + * the register, starting from the least significant bit. + * + * DEPRECATED. Please use the equivalent macros defined in + * . (Note that these have different names.) + */ + +/* DBREAKC (special register number 160): */ + +#define XCHAL_DBREAKC_VALIDMASK 0xC000003F +#define XCHAL_DBREAKC_MASK_BITS 6 +#define XCHAL_DBREAKC_MASK_NUM 64 +#define XCHAL_DBREAKC_MASK_SHIFT 0 +#define XCHAL_DBREAKC_MASK_MASK 0x0000003F +#define XCHAL_DBREAKC_LOADBREAK_BITS 1 +#define XCHAL_DBREAKC_LOADBREAK_NUM 2 +#define XCHAL_DBREAKC_LOADBREAK_SHIFT 30 +#define XCHAL_DBREAKC_LOADBREAK_MASK 0x40000000 +#define XCHAL_DBREAKC_STOREBREAK_BITS 1 +#define XCHAL_DBREAKC_STOREBREAK_NUM 2 +#define XCHAL_DBREAKC_STOREBREAK_SHIFT 31 +#define XCHAL_DBREAKC_STOREBREAK_MASK 0x80000000 + +/* PS (special register number 230): */ + +#define XCHAL_PS_VALIDMASK 0x00070F3F +#define XCHAL_PS_INTLEVEL_BITS 4 +#define XCHAL_PS_INTLEVEL_NUM 16 +#define XCHAL_PS_INTLEVEL_SHIFT 0 +#define XCHAL_PS_INTLEVEL_MASK 0x0000000F +#define XCHAL_PS_EXCM_BITS 1 +#define XCHAL_PS_EXCM_NUM 2 +#define XCHAL_PS_EXCM_SHIFT 4 +#define XCHAL_PS_EXCM_MASK 0x00000010 +#define XCHAL_PS_UM_BITS 1 +#define XCHAL_PS_UM_NUM 2 +#define XCHAL_PS_UM_SHIFT 5 +#define XCHAL_PS_UM_MASK 0x00000020 +#define XCHAL_PS_RING_BITS 2 +#define XCHAL_PS_RING_NUM 4 +#define XCHAL_PS_RING_SHIFT 6 +#define XCHAL_PS_RING_MASK 0x000000C0 +#define XCHAL_PS_OWB_BITS 4 +#define XCHAL_PS_OWB_NUM 16 +#define XCHAL_PS_OWB_SHIFT 8 +#define XCHAL_PS_OWB_MASK 0x00000F00 +#define XCHAL_PS_CALLINC_BITS 2 +#define XCHAL_PS_CALLINC_NUM 4 +#define XCHAL_PS_CALLINC_SHIFT 16 +#define XCHAL_PS_CALLINC_MASK 0x00030000 +#define XCHAL_PS_WOE_BITS 1 +#define XCHAL_PS_WOE_NUM 2 +#define XCHAL_PS_WOE_SHIFT 18 +#define XCHAL_PS_WOE_MASK 0x00040000 + +/* EXCCAUSE (special register number 232): */ + +#define XCHAL_EXCCAUSE_VALIDMASK 0x0000003F +#define XCHAL_EXCCAUSE_BITS 6 +#define XCHAL_EXCCAUSE_NUM 64 +#define XCHAL_EXCCAUSE_SHIFT 0 +#define XCHAL_EXCCAUSE_MASK 0x0000003F + +/* DEBUGCAUSE (special register number 233): */ + +#define XCHAL_DEBUGCAUSE_VALIDMASK 0x0000003F +#define XCHAL_DEBUGCAUSE_ICOUNT_BITS 1 +#define XCHAL_DEBUGCAUSE_ICOUNT_NUM 2 +#define XCHAL_DEBUGCAUSE_ICOUNT_SHIFT 0 +#define XCHAL_DEBUGCAUSE_ICOUNT_MASK 0x00000001 +#define XCHAL_DEBUGCAUSE_IBREAK_BITS 1 +#define XCHAL_DEBUGCAUSE_IBREAK_NUM 2 +#define XCHAL_DEBUGCAUSE_IBREAK_SHIFT 1 +#define XCHAL_DEBUGCAUSE_IBREAK_MASK 0x00000002 +#define XCHAL_DEBUGCAUSE_DBREAK_BITS 1 +#define XCHAL_DEBUGCAUSE_DBREAK_NUM 2 +#define XCHAL_DEBUGCAUSE_DBREAK_SHIFT 2 +#define XCHAL_DEBUGCAUSE_DBREAK_MASK 0x00000004 +#define XCHAL_DEBUGCAUSE_BREAK_BITS 1 +#define XCHAL_DEBUGCAUSE_BREAK_NUM 2 +#define XCHAL_DEBUGCAUSE_BREAK_SHIFT 3 +#define XCHAL_DEBUGCAUSE_BREAK_MASK 0x00000008 +#define XCHAL_DEBUGCAUSE_BREAKN_BITS 1 +#define XCHAL_DEBUGCAUSE_BREAKN_NUM 2 +#define XCHAL_DEBUGCAUSE_BREAKN_SHIFT 4 +#define XCHAL_DEBUGCAUSE_BREAKN_MASK 0x00000010 +#define XCHAL_DEBUGCAUSE_DEBUGINT_BITS 1 +#define XCHAL_DEBUGCAUSE_DEBUGINT_NUM 2 +#define XCHAL_DEBUGCAUSE_DEBUGINT_SHIFT 5 +#define XCHAL_DEBUGCAUSE_DEBUGINT_MASK 0x00000020 + +/* Timers *******************************************************************/ + +/* #define XCHAL_HAVE_TIMERS XCHAL_HAVE_CCOUNT */ + +/* Internal I/D RAMS/ROMS and XLMI ******************************************/ + +#define XCHAL_NUM_IROM XCHAL_NUM_INSTROM /* (DEPRECATED) */ +#define XCHAL_NUM_IRAM XCHAL_NUM_INSTRAM /* (DEPRECATED) */ +#define XCHAL_NUM_DROM XCHAL_NUM_DATAROM /* (DEPRECATED) */ +#define XCHAL_NUM_DRAM XCHAL_NUM_DATARAM /* (DEPRECATED) */ + +#define XCHAL_IROM0_VADDR XCHAL_INSTROM0_VADDR /* (DEPRECATED) */ +#define XCHAL_IROM0_PADDR XCHAL_INSTROM0_PADDR /* (DEPRECATED) */ +#define XCHAL_IROM0_SIZE XCHAL_INSTROM0_SIZE /* (DEPRECATED) */ +#define XCHAL_IROM1_VADDR XCHAL_INSTROM1_VADDR /* (DEPRECATED) */ +#define XCHAL_IROM1_PADDR XCHAL_INSTROM1_PADDR /* (DEPRECATED) */ +#define XCHAL_IROM1_SIZE XCHAL_INSTROM1_SIZE /* (DEPRECATED) */ +#define XCHAL_IRAM0_VADDR XCHAL_INSTRAM0_VADDR /* (DEPRECATED) */ +#define XCHAL_IRAM0_PADDR XCHAL_INSTRAM0_PADDR /* (DEPRECATED) */ +#define XCHAL_IRAM0_SIZE XCHAL_INSTRAM0_SIZE /* (DEPRECATED) */ +#define XCHAL_IRAM1_VADDR XCHAL_INSTRAM1_VADDR /* (DEPRECATED) */ +#define XCHAL_IRAM1_PADDR XCHAL_INSTRAM1_PADDR /* (DEPRECATED) */ +#define XCHAL_IRAM1_SIZE XCHAL_INSTRAM1_SIZE /* (DEPRECATED) */ +#define XCHAL_DROM0_VADDR XCHAL_DATAROM0_VADDR /* (DEPRECATED) */ +#define XCHAL_DROM0_PADDR XCHAL_DATAROM0_PADDR /* (DEPRECATED) */ +#define XCHAL_DROM0_SIZE XCHAL_DATAROM0_SIZE /* (DEPRECATED) */ +#define XCHAL_DROM1_VADDR XCHAL_DATAROM1_VADDR /* (DEPRECATED) */ +#define XCHAL_DROM1_PADDR XCHAL_DATAROM1_PADDR /* (DEPRECATED) */ +#define XCHAL_DROM1_SIZE XCHAL_DATAROM1_SIZE /* (DEPRECATED) */ +#define XCHAL_DRAM0_VADDR XCHAL_DATARAM0_VADDR /* (DEPRECATED) */ +#define XCHAL_DRAM0_PADDR XCHAL_DATARAM0_PADDR /* (DEPRECATED) */ +#define XCHAL_DRAM0_SIZE XCHAL_DATARAM0_SIZE /* (DEPRECATED) */ +#define XCHAL_DRAM1_VADDR XCHAL_DATARAM1_VADDR /* (DEPRECATED) */ +#define XCHAL_DRAM1_PADDR XCHAL_DATARAM1_PADDR /* (DEPRECATED) */ +#define XCHAL_DRAM1_SIZE XCHAL_DATARAM1_SIZE /* (DEPRECATED) */ + +/* Cache ********************************************************************/ + +/* Default PREFCTL value to enable prefetch. */ + +#if XCHAL_HW_MIN_VERSION < XTENSA_HWVERSION_RE_2012_0 +# define XCHAL_CACHE_PREFCTL_DEFAULT 0x00044 /* Enabled, not aggressive */ +#elif XCHAL_HW_MIN_VERSION < XTENSA_HWVERSION_RF_2014_0 +# define XCHAL_CACHE_PREFCTL_DEFAULT 0x01044 /* + enable prefetch to L1 */ +#elif XCHAL_PREFETCH_ENTRIES >= 16 +# define XCHAL_CACHE_PREFCTL_DEFAULT 0x81044 /* 12 entries for block ops */ +#elif XCHAL_PREFETCH_ENTRIES >= 8 +# define XCHAL_CACHE_PREFCTL_DEFAULT 0x51044 /* 5 entries for block ops */ +#else +# define XCHAL_CACHE_PREFCTL_DEFAULT 0x01044 /* 0 entries for block ops */ +#endif + +/* Max for both I-cache and D-cache (used for general alignment): */ + +#if XCHAL_ICACHE_LINESIZE > XCHAL_DCACHE_LINESIZE +# define XCHAL_CACHE_LINEWIDTH_MAX XCHAL_ICACHE_LINEWIDTH +# define XCHAL_CACHE_LINESIZE_MAX XCHAL_ICACHE_LINESIZE +#else +# define XCHAL_CACHE_LINEWIDTH_MAX XCHAL_DCACHE_LINEWIDTH +# define XCHAL_CACHE_LINESIZE_MAX XCHAL_DCACHE_LINESIZE +#endif + +#define XCHAL_ICACHE_SETSIZE (1 << XCHAL_ICACHE_SETWIDTH) +#define XCHAL_DCACHE_SETSIZE (1 << XCHAL_DCACHE_SETWIDTH) + +/* Max for both I and D caches (used for cache-coherency page alignment): */ + +#if XCHAL_ICACHE_SETWIDTH > XCHAL_DCACHE_SETWIDTH +# define XCHAL_CACHE_SETWIDTH_MAX XCHAL_ICACHE_SETWIDTH +# define XCHAL_CACHE_SETSIZE_MAX XCHAL_ICACHE_SETSIZE +#else +# define XCHAL_CACHE_SETWIDTH_MAX XCHAL_DCACHE_SETWIDTH +# define XCHAL_CACHE_SETSIZE_MAX XCHAL_DCACHE_SETSIZE +#endif + +/* Instruction cache tag bits: */ + +#define XCHAL_ICACHE_TAG_V_SHIFT 0 +#define XCHAL_ICACHE_TAG_V 0x1 /* Valid bit */ +#if XCHAL_ICACHE_WAYS > 1 +# define XCHAL_ICACHE_TAG_F_SHIFT 1 +# define XCHAL_ICACHE_TAG_F 0x2 /* Fill (LRU) bit */ +#else +# define XCHAL_ICACHE_TAG_F_SHIFT 0 +# define XCHAL_ICACHE_TAG_F 0 /* No fill (LRU) bit */ +#endif +#if XCHAL_ICACHE_LINE_LOCKABLE +# define XCHAL_ICACHE_TAG_L_SHIFT (XCHAL_ICACHE_TAG_F_SHIFT+1) +# define XCHAL_ICACHE_TAG_L (1 << XCHAL_ICACHE_TAG_L_SHIFT) /* Lock bit */ +#else +# define XCHAL_ICACHE_TAG_L_SHIFT XCHAL_ICACHE_TAG_F_SHIFT +# define XCHAL_ICACHE_TAG_L 0 /* No lock bit */ +#endif + +/* Data cache tag bits: */ + +#define XCHAL_DCACHE_TAG_V_SHIFT 0 +#define XCHAL_DCACHE_TAG_V 0x1 /* Valid bit */ +#if XCHAL_DCACHE_WAYS > 1 +# define XCHAL_DCACHE_TAG_F_SHIFT 1 +# define XCHAL_DCACHE_TAG_F 0x2 /* Fill (LRU) bit */ +#else +# define XCHAL_DCACHE_TAG_F_SHIFT 0 +# define XCHAL_DCACHE_TAG_F 0 /* No fill (LRU) bit */ +#endif +#if XCHAL_DCACHE_IS_WRITEBACK +# define XCHAL_DCACHE_TAG_D_SHIFT (XCHAL_DCACHE_TAG_F_SHIFT+1) +# define XCHAL_DCACHE_TAG_D (1 << XCHAL_DCACHE_TAG_D_SHIFT) /* Dirty bit */ +#else +# define XCHAL_DCACHE_TAG_D_SHIFT XCHAL_DCACHE_TAG_F_SHIFT +# define XCHAL_DCACHE_TAG_D 0 /* No dirty bit */ +#endif +#if XCHAL_DCACHE_LINE_LOCKABLE +# define XCHAL_DCACHE_TAG_L_SHIFT (XCHAL_DCACHE_TAG_D_SHIFT+1) +# define XCHAL_DCACHE_TAG_L (1 << XCHAL_DCACHE_TAG_L_SHIFT) /* Lock bit */ +#else +# define XCHAL_DCACHE_TAG_L_SHIFT XCHAL_DCACHE_TAG_D_SHIFT +# define XCHAL_DCACHE_TAG_L 0 /* No lock bit */ +#endif + +/* Whether MEMCTL register has anything useful */ + +#define XCHAL_USE_MEMCTL \ + (((XCHAL_LOOP_BUFFER_SIZE > 0) || \ + XCHAL_DCACHE_IS_COHERENT || \ + XCHAL_HAVE_ICACHE_DYN_WAYS || \ + XCHAL_HAVE_DCACHE_DYN_WAYS) && \ + (XCHAL_HW_MIN_VERSION >= XTENSA_HWVERSION_RE_2012_0)) + +/* Default MEMCTL values: */ + +#if XCHAL_HAVE_ICACHE_DYN_WAYS || XCHAL_HAVE_DCACHE_DYN_WAYS + +/* NOTE: constant defined this way to allow movi instead of l32r in reset code. */ + +# define XCHAL_CACHE_MEMCTL_DEFAULT 0xFFFFFF00 /* Init all possible ways */ +#else +# define XCHAL_CACHE_MEMCTL_DEFAULT 0x00000000 /* Nothing to do */ +#endif + +#if XCHAL_DCACHE_IS_COHERENT +# define _MEMCTL_SNOOP_EN 0x02 /* Enable snoop */ +#else +# define _MEMCTL_SNOOP_EN 0x00 /* Don't enable snoop */ +#endif + +#if (XCHAL_LOOP_BUFFER_SIZE == 0) || XCHAL_ERRATUM_453 +# define _MEMCTL_L0IBUF_EN 0x00 /* No loop buffer or don't enable */ +#else +# define _MEMCTL_L0IBUF_EN 0x01 /* Enable loop buffer */ +#endif + +#define XCHAL_SNOOP_LB_MEMCTL_DEFAULT (_MEMCTL_SNOOP_EN | _MEMCTL_L0IBUF_EN) + +/* MMU **********************************************************************/ + +/* See for more details. */ + +/* Has different semantic in open source headers (where it means HAVE_PTP_MMU), + * so comment out starting with RB-2008.3 release; later, might get + * get reintroduced as a synonym for XCHAL_HAVE_PTP_MMU instead: + */ + +/* #define XCHAL_HAVE_MMU XCHAL_HAVE_TLBS*//* (DEPRECATED; use XCHAL_HAVE_TLBS instead) */ + +/* Indexing macros: */ + +#define _XCHAL_ITLB_SET(n,_what) XCHAL_ITLB_SET ## n ## _what +#define XCHAL_ITLB_SET(n,what) _XCHAL_ITLB_SET(n, _ ## what ) +#define _XCHAL_ITLB_SET_E(n,i,_what) XCHAL_ITLB_SET ## n ## _E ## i ## _what +#define XCHAL_ITLB_SET_E(n,i,what) _XCHAL_ITLB_SET_E(n,i, _ ## what ) +#define _XCHAL_DTLB_SET(n,_what) XCHAL_DTLB_SET ## n ## _what +#define XCHAL_DTLB_SET(n,what) _XCHAL_DTLB_SET(n, _ ## what ) +#define _XCHAL_DTLB_SET_E(n,i,_what) XCHAL_DTLB_SET ## n ## _E ## i ## _what +#define XCHAL_DTLB_SET_E(n,i,what) _XCHAL_DTLB_SET_E(n,i, _ ## what ) + +/* Example use: XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,ENTRIES) + * to get the value of XCHAL_ITLB_SET_ENTRIES where is the first auto-refill set. + */ + +/* Number of entries per autorefill way: */ + +#define XCHAL_ITLB_ARF_ENTRIES (1 << XCHAL_ITLB_ARF_ENTRIES_LOG2) +#define XCHAL_DTLB_ARF_ENTRIES (1 << XCHAL_DTLB_ARF_ENTRIES_LOG2) + +/* Determine whether we have a full MMU (with Page Table and Protection) + * usable for an MMU-based OS: + */ + +#if 0 +# if XCHAL_HAVE_TLBS && !XCHAL_HAVE_SPANNING_WAY && XCHAL_ITLB_ARF_WAYS > 0 && \ + XCHAL_DTLB_ARF_WAYS > 0 && XCHAL_MMU_RINGS >= 2 +# define XCHAL_HAVE_PTP_MMU 1 /* Have full MMU (with page table + * [autorefill] and protection) */ +# else +# define XCHAL_HAVE_PTP_MMU 0 /* Don't have full MMU */ +# endif +#endif + +/* For full MMUs, report kernel RAM segment and kernel I/O segment static + * page mappings: + */ + +#if XCHAL_HAVE_PTP_MMU && !XCHAL_HAVE_SPANNING_WAY +# define XCHAL_KSEG_CACHED_VADDR 0xD0000000 /* virt.addr of kernel + * RAM cached static + * map */ +# define XCHAL_KSEG_CACHED_PADDR 0x00000000 /* phys.addr of + * kseg_cached */ +# define XCHAL_KSEG_CACHED_SIZE 0x08000000 /* size in bytes of + * kseg_cached (assumed + * power of 2!!!) */ +# define XCHAL_KSEG_BYPASS_VADDR 0xD8000000 /* virt.addr of kernel + * RAM bypass + * (uncached) static + * map */ +# define XCHAL_KSEG_BYPASS_PADDR 0x00000000 /* phys.addr of + * kseg_bypass */ +# define XCHAL_KSEG_BYPASS_SIZE 0x08000000 /* size in bytes of + * kseg_bypass (assumed + * power of 2!!!) */ +# define XCHAL_KIO_CACHED_VADDR 0xE0000000 /* virt.addr of kernel + * I/O cached static + * map */ +# define XCHAL_KIO_CACHED_PADDR 0xF0000000 /* phys.addr of + * kio_cached */ +# define XCHAL_KIO_CACHED_SIZE 0x10000000 /* size in bytes of kio_cached + * (assumed power of 2!!!) */ +# define XCHAL_KIO_BYPASS_VADDR 0xF0000000 /* virt.addr of kernel + * I/O bypass + * (uncached) static + * map */ +# define XCHAL_KIO_BYPASS_PADDR 0xF0000000 /* phys.addr of + * kio_bypass */ +# define XCHAL_KIO_BYPASS_SIZE 0x10000000 /* size in bytes of kio_bypass + * (assumed power of 2!!!) */ +# define XCHAL_SEG_MAPPABLE_VADDR 0x00000000 /* start of largest + * non-static-mapped virtual + * addr area */ +# define XCHAL_SEG_MAPPABLE_SIZE 0xD0000000 /* size in bytes of " */ + +/* define XCHAL_SEG_MAPPABLE2_xxx if more areas present, sorted in order of + * descending size. + */ +#endif + +/* Misc. **************************************************** + +/* Data alignment required if used for instructions: */ + +#if XCHAL_INST_FETCH_WIDTH > XCHAL_DATA_WIDTH +# define XCHAL_ALIGN_MAX XCHAL_INST_FETCH_WIDTH +#else +# define XCHAL_ALIGN_MAX XCHAL_DATA_WIDTH +#endif + +/* Names kept for backward compatibility. + * (Here "RELEASE" is now a misnomer; these are product *versions*, not the releases + * under which they are released. In the T10##.# era there was no distinction.) + */ + +#define XCHAL_HW_RELEASE_MAJOR XCHAL_HW_VERSION_MAJOR +#define XCHAL_HW_RELEASE_MINOR XCHAL_HW_VERSION_MINOR +#define XCHAL_HW_RELEASE_NAME XCHAL_HW_VERSION_NAME + +/* Co-processors and extra state ********************************************/ + +#define XCHAL_EXTRA_SA_SIZE XCHAL_NCP_SA_SIZE +#define XCHAL_EXTRA_SA_ALIGN XCHAL_NCP_SA_ALIGN +#define XCHAL_CPEXTRA_SA_SIZE XCHAL_TOTAL_SA_SIZE +#define XCHAL_CPEXTRA_SA_ALIGN XCHAL_TOTAL_SA_ALIGN + +#ifdef __ASSEMBLY__ + +/* Invoked at start of save area load/store sequence macro to setup macro + * internal offsets. Not usually invoked directly. continue 0 for 1st + * sequence, 1 for subsequent consecutive ones. totofs offset from + * original ptr to next load/store location. + */ + + .macro xchal_sa_start continue totofs + .ifeq \continue + .set .Lxchal_pofs_, 0 /* offset from original ptr to current \ptr */ + .set .Lxchal_ofs_, 0 /* offset from current \ptr to next load/store location */ + .endif + .if \totofs + 1 /* if totofs specified (not -1) */ + .set .Lxchal_ofs_, \totofs - .Lxchal_pofs_ /* specific offset from original ptr */ + .endif + .endm + +/* Align portion of save area and bring ptr in range if necessary. Used by + * save area load/store sequences. Not usually invoked directly. Allows + * combining multiple (sub-)sequences arbitrarily. ptr pointer to save + * area (may be off, see .Lxchal_pofs_) minofs,maxofs range of offset from + * cur ptr to next load/store loc; minofs <= 0 <= maxofs (0 must always be + * valid offset) range must be within +/- 30kB or so. ofsalign alignment + * granularity of minofs .. maxofs (pow of 2) (restriction on offset from + * ptr to next load/store loc) totalign align from orig ptr to next + * load/store loc (pow of 2) + */ + + .macro xchal_sa_align ptr minofs maxofs ofsalign totalign + + /* First align where we start accessing the next register + * per \totalign relative to original ptr (i.e. start of the save area): + */ + + .set .Lxchal_ofs_, ((.Lxchal_pofs_ + .Lxchal_ofs_ + \totalign - 1) & -\totalign) - .Lxchal_pofs_ + + /* If necessary, adjust \ptr to bring .Lxchal_ofs_ in acceptable range: */ + + .if (((\maxofs) - .Lxchal_ofs_) & 0xC0000000) | ((.Lxchal_ofs_ - (\minofs)) & 0xC0000000) | (.Lxchal_ofs_ & (\ofsalign-1)) + .set .Ligmask, 0xFFFFFFFF /* TODO: optimize to addmi, per aligns and .Lxchal_ofs_ */ + addi \ptr, \ptr, (.Lxchal_ofs_ & .Ligmask) + .set .Lxchal_pofs_, .Lxchal_pofs_ + (.Lxchal_ofs_ & .Ligmask) + .set .Lxchal_ofs_, (.Lxchal_ofs_ & ~.Ligmask) + .endif + .endm + +/* We could optimize for addi to expand to only addmi instead of + * "addmi;addi", where possible. Here's a partial example how: + * + * .set .Lmaxmask, -(\ofsalign) & -(\totalign) + * .if (((\maxofs) + ~.Lmaxmask + 1) & 0xFFFFFF00) && ((.Lxchal_ofs_ & ~.Lmaxmask) == 0) + * .set .Ligmask, 0xFFFFFF00 + * .elif ... ditto for negative ofs range ... + * .set .Ligmask, 0xFFFFFF00 + * .set ... adjust per offset ... + * .else + * .set .Ligmask, 0xFFFFFFFF + * .endif + * + +/* Invoke this after xchal_XXX_{load,store} macros to restore \ptr. */ + + .macro xchal_sa_ptr_restore ptr + .if .Lxchal_pofs_ + addi \ptr, \ptr, - .Lxchal_pofs_ + .set .Lxchal_ofs_, .Lxchal_ofs_ + .Lxchal_pofs_ + .set .Lxchal_pofs_, 0 + .endif + .endm + +/* Use as eg: + * xchal_atmps_store a1, SOMEOFS, XCHAL_SA_NUM_ATMPS, a4, a5 + * xchal_ncp_load a2, a0,a3,a4,a5 + * xchal_atmps_load a1, SOMEOFS, XCHAL_SA_NUM_ATMPS, a4, a5 + * + * Specify only the ARs you *haven't* saved/restored already, up to 4. + * They *must* be the *last* ARs (in same order) specified to save area + * load/store sequences. In the example above, a0 and a3 were already + * saved/restored and unused (thus available) but a4 and a5 were not. + */ + +#define xchal_atmps_store xchal_atmps_loadstore s32i, +#define xchal_atmps_load xchal_atmps_loadstore l32i, + + .macro xchal_atmps_loadstore inst ptr offset nreq aa=0 ab=0 ac=0 ad=0 + .set .Lnsaved_, 0 + .irp reg,\aa,\ab,\ac,\ad + .ifeq 0x\reg ; .set .Lnsaved_,.Lnsaved_+1 ; .endif + .endr + .set .Laofs_, 0 + .irp reg,\aa,\ab,\ac,\ad + .ifgt (\nreq)-.Lnsaved_ + \inst \reg, \ptr, .Laofs_+\offset + .set .Laofs_,.Laofs_+4 + .set .Lnsaved_,.Lnsaved_+1 + .endif + .endr + .endm + + +/* #define xchal_ncp_load_a2 xchal_ncp_load a2,a3,a4,a5,a6 */ +/* #define xchal_ncp_store_a2 xchal_ncp_store a2,a3,a4,a5,a6 */ +# define xchal_extratie_load xchal_ncptie_load +# define xchal_extratie_store xchal_ncptie_store +# define xchal_extratie_load_a2 xchal_ncptie_load a2,a3,a4,a5,a6 +# define xchal_extratie_store_a2 xchal_ncptie_store a2,a3,a4,a5,a6 +# define xchal_extra_load xchal_ncp_load +# define xchal_extra_store xchal_ncp_store +# define xchal_extra_load_a2 xchal_ncp_load a2,a3,a4,a5,a6 +# define xchal_extra_store_a2 xchal_ncp_store a2,a3,a4,a5,a6 +# define xchal_extra_load_funcbody xchal_ncp_load a2,a3,a4,a5,a6 +# define xchal_extra_store_funcbody xchal_ncp_store a2,a3,a4,a5,a6 +# define xchal_cp0_store_a2 xchal_cp0_store a2,a3,a4,a5,a6 +# define xchal_cp0_load_a2 xchal_cp0_load a2,a3,a4,a5,a6 +# define xchal_cp1_store_a2 xchal_cp1_store a2,a3,a4,a5,a6 +# define xchal_cp1_load_a2 xchal_cp1_load a2,a3,a4,a5,a6 +# define xchal_cp2_store_a2 xchal_cp2_store a2,a3,a4,a5,a6 +# define xchal_cp2_load_a2 xchal_cp2_load a2,a3,a4,a5,a6 +# define xchal_cp3_store_a2 xchal_cp3_store a2,a3,a4,a5,a6 +# define xchal_cp3_load_a2 xchal_cp3_load a2,a3,a4,a5,a6 +# define xchal_cp4_store_a2 xchal_cp4_store a2,a3,a4,a5,a6 +# define xchal_cp4_load_a2 xchal_cp4_load a2,a3,a4,a5,a6 +# define xchal_cp5_store_a2 xchal_cp5_store a2,a3,a4,a5,a6 +# define xchal_cp5_load_a2 xchal_cp5_load a2,a3,a4,a5,a6 +# define xchal_cp6_store_a2 xchal_cp6_store a2,a3,a4,a5,a6 +# define xchal_cp6_load_a2 xchal_cp6_load a2,a3,a4,a5,a6 +# define xchal_cp7_store_a2 xchal_cp7_store a2,a3,a4,a5,a6 +# define xchal_cp7_load_a2 xchal_cp7_load a2,a3,a4,a5,a6 + +/* Empty placeholder macros for undefined coprocessors: */ + +#if (XCHAL_CP_MASK & ~XCHAL_CP_PORT_MASK) == 0 +# if XCHAL_CP0_SA_SIZE == 0 + .macro xchal_cp0_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp0_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP1_SA_SIZE == 0 + .macro xchal_cp1_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp1_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP2_SA_SIZE == 0 + .macro xchal_cp2_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp2_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP3_SA_SIZE == 0 + .macro xchal_cp3_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp3_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP4_SA_SIZE == 0 + .macro xchal_cp4_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp4_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP5_SA_SIZE == 0 + .macro xchal_cp5_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp5_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP6_SA_SIZE == 0 + .macro xchal_cp6_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp6_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +# if XCHAL_CP7_SA_SIZE == 0 + .macro xchal_cp7_store p a b c d continue=0 ofs=-1 select=-1 ; .endm + .macro xchal_cp7_load p a b c d continue=0 ofs=-1 select=-1 ; .endm +# endif +#endif + +/* Macros to create functions that save and restore the state of *any* TIE + * coprocessor (by dynamic index). + */ + +/* Macro that expands to the body of a function that stores the selected + * coprocessor's state (registers etc). + * + * Entry: a2 = ptr to save area in which to save cp state + * a3 = coprocessor number + * Exit: any register a2-a15 (?) may have been clobbered. + */ + + .macro xchal_cpi_store_funcbody +#if (XCHAL_CP_MASK & ~XCHAL_CP_PORT_MASK) +# if XCHAL_CP0_SA_SIZE + bnez a3, 99f + xchal_cp0_store_a2 + j 90f +99: +# endif +# if XCHAL_CP1_SA_SIZE + bnei a3, 1, 99f + xchal_cp1_store_a2 + j 90f +99: +# endif +# if XCHAL_CP2_SA_SIZE + bnei a3, 2, 99f + xchal_cp2_store_a2 + j 90f +99: +# endif +# if XCHAL_CP3_SA_SIZE + bnei a3, 3, 99f + xchal_cp3_store_a2 + j 90f +99: +# endif +# if XCHAL_CP4_SA_SIZE + bnei a3, 4, 99f + xchal_cp4_store_a2 + j 90f +99: +# endif +# if XCHAL_CP5_SA_SIZE + bnei a3, 5, 99f + xchal_cp5_store_a2 + j 90f +99: +# endif +# if XCHAL_CP6_SA_SIZE + bnei a3, 6, 99f + xchal_cp6_store_a2 + j 90f +99: +# endif +# if XCHAL_CP7_SA_SIZE + bnei a3, 7, 99f + xchal_cp7_store_a2 + j 90f +99: +# endif +90: +#endif + +/* Macro that expands to the body of a function that loads the selected coprocessor's state + * (registers etc). + * + * Entry: a2 = ptr to save area from which to restore cp state + * a3 = coprocessor number + * Exit: any register a2-a15 (?) may have been clobbered. + */ + + .macro xchal_cpi_load_funcbody +#if (XCHAL_CP_MASK & ~XCHAL_CP_PORT_MASK) +# if XCHAL_CP0_SA_SIZE + bnez a3, 99f + xchal_cp0_load_a2 + j 90f +99: +# endif +# if XCHAL_CP1_SA_SIZE + bnei a3, 1, 99f + xchal_cp1_load_a2 + j 90f +99: +# endif +# if XCHAL_CP2_SA_SIZE + bnei a3, 2, 99f + xchal_cp2_load_a2 + j 90f +99: +# endif +# if XCHAL_CP3_SA_SIZE + bnei a3, 3, 99f + xchal_cp3_load_a2 + j 90f +99: +# endif +# if XCHAL_CP4_SA_SIZE + bnei a3, 4, 99f + xchal_cp4_load_a2 + j 90f +99: +# endif +# if XCHAL_CP5_SA_SIZE + bnei a3, 5, 99f + xchal_cp5_load_a2 + j 90f +99: +# endif +# if XCHAL_CP6_SA_SIZE + bnei a3, 6, 99f + xchal_cp6_load_a2 + j 90f +99: +# endif +# if XCHAL_CP7_SA_SIZE + bnei a3, 7, 99f + xchal_cp7_load_a2 + j 90f +99: +# endif +90: +#endif + .endm + +#endif /* __ASSEMBLY__ */ + +/* Other default macros for undefined coprocessors: */ + +#ifndef XCHAL_CP0_NAME +# define XCHAL_CP0_NAME 0 +# define XCHAL_CP0_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP0_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP1_NAME +# define XCHAL_CP1_NAME 0 +# define XCHAL_CP1_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP1_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP2_NAME +# define XCHAL_CP2_NAME 0 +# define XCHAL_CP2_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP2_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP3_NAME +# define XCHAL_CP3_NAME 0 +# define XCHAL_CP3_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP3_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP4_NAME +# define XCHAL_CP4_NAME 0 +# define XCHAL_CP4_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP4_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP5_NAME +# define XCHAL_CP5_NAME 0 +# define XCHAL_CP5_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP5_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP6_NAME +# define XCHAL_CP6_NAME 0 +# define XCHAL_CP6_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP6_SA_CONTENTS_LIBDB /* empty */ +#endif +#ifndef XCHAL_CP7_NAME +# define XCHAL_CP7_NAME 0 +# define XCHAL_CP7_SA_CONTENTS_LIBDB_NUM 0 +# define XCHAL_CP7_SA_CONTENTS_LIBDB /* empty */ +#endif + +#if XCHAL_CP_MASK == 0 +/* Filler info for unassigned coprocessors, to simplify arrays etc: */ + +# define XCHAL_CP0_SA_SIZE 0 +# define XCHAL_CP0_SA_ALIGN 1 +# define XCHAL_CP1_SA_SIZE 0 +# define XCHAL_CP1_SA_ALIGN 1 +# define XCHAL_CP2_SA_SIZE 0 +# define XCHAL_CP2_SA_ALIGN 1 +# define XCHAL_CP3_SA_SIZE 0 +# define XCHAL_CP3_SA_ALIGN 1 +# define XCHAL_CP4_SA_SIZE 0 +# define XCHAL_CP4_SA_ALIGN 1 +# define XCHAL_CP5_SA_SIZE 0 +# define XCHAL_CP5_SA_ALIGN 1 +# define XCHAL_CP6_SA_SIZE 0 +# define XCHAL_CP6_SA_ALIGN 1 +# define XCHAL_CP7_SA_SIZE 0 +# define XCHAL_CP7_SA_ALIGN 1 +#endif + +/* Indexing macros: */ + +#define _XCHAL_CP_SA_SIZE(n) XCHAL_CP ## n ## _SA_SIZE +#define XCHAL_CP_SA_SIZE(n) _XCHAL_CP_SA_SIZE(n) /* n = 0 .. 7 */ +#define _XCHAL_CP_SA_ALIGN(n) XCHAL_CP ## n ## _SA_ALIGN +#define XCHAL_CP_SA_ALIGN(n) _XCHAL_CP_SA_ALIGN(n) /* n = 0 .. 7 */ +#define XCHAL_CPEXTRA_SA_SIZE_TOR2 XCHAL_CPEXTRA_SA_SIZE /* Tor2Beta only - do not use */ + +/* Link-time HAL global variables that report coprocessor numbers by name + * (names are case-preserved from the original TIE): + */ + + #if !defined(_ASMLANGUAGE) && !defined(_NOCLANGUAGE) && !defined(__ASSEMBLER__) +# define _XCJOIN(a,b) a ## b +# define XCJOIN(a,b) _XCJOIN(a,b) +# ifdef XCHAL_CP0_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP0_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP0_IDENT); +# endif +# ifdef XCHAL_CP1_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP1_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP1_IDENT); +# endif +# ifdef XCHAL_CP2_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP2_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP2_IDENT); +# endif +# ifdef XCHAL_CP3_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP3_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP3_IDENT); +# endif +# ifdef XCHAL_CP4_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP4_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP4_IDENT); +# endif +# ifdef XCHAL_CP5_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP5_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP5_IDENT); +# endif +# ifdef XCHAL_CP6_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP6_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP6_IDENT); +# endif +# ifdef XCHAL_CP7_NAME + extern const unsigned char XCJOIN(Xthal_cp_id_, XCHAL_CP7_IDENT); + extern const unsigned int XCJOIN(Xthal_cp_mask_, XCHAL_CP7_IDENT); +# endif +#endif + +/* Derived ******************************************************************/ + +#if XCHAL_HAVE_BE +# define XCHAL_INST_ILLN 0xD60F /* 2-byte illegal instruction, + * msb-first */ +# define XCHAL_INST_ILLN_BYTE0 0xD6 /* 2-byte illegal instruction, + * 1st byte */ +# define XCHAL_INST_ILLN_BYTE1 0x0F /* 2-byte illegal instruction, + * 2nd byte */ +#else +# define XCHAL_INST_ILLN 0xF06D /* 2-byte illegal instruction, + * lsb-first */ +# define XCHAL_INST_ILLN_BYTE0 0x6D /* 2-byte illegal instruction, + * 1st byte */ +# define XCHAL_INST_ILLN_BYTE1 0xF0 /* 2-byte illegal instruction, + * 2nd byte */ +#endif + +/* Belongs in xtensa/hal.h: */ + +#define XTHAL_INST_ILL 0x000000 /* 3-byte illegal instruction */ + +/* Because information as to exactly which hardware version is targeted + * by a given software build is not always available, compile-time HAL + * Hardware-Release "_AT" macros are fuzzy (return 0, 1, or XCHAL_MAYBE): + * (Here "RELEASE" is now a misnomer; these are product *versions*, not the releases + * under which they are released. In the T10##.# era there was no distinction.) + */ + +#if XCHAL_HW_CONFIGID_RELIABLE +# define XCHAL_HW_RELEASE_AT_OR_BELOW(major,minor) (XTHAL_REL_LE( XCHAL_HW_VERSION_MAJOR,XCHAL_HW_VERSION_MINOR, major,minor ) ? 1 : 0) +# define XCHAL_HW_RELEASE_AT_OR_ABOVE(major,minor) (XTHAL_REL_GE( XCHAL_HW_VERSION_MAJOR,XCHAL_HW_VERSION_MINOR, major,minor ) ? 1 : 0) +# define XCHAL_HW_RELEASE_AT(major,minor) (XTHAL_REL_EQ( XCHAL_HW_VERSION_MAJOR,XCHAL_HW_VERSION_MINOR, major,minor ) ? 1 : 0) +# define XCHAL_HW_RELEASE_MAJOR_AT(major) ((XCHAL_HW_VERSION_MAJOR == (major)) ? 1 : 0) +#else +# define XCHAL_HW_RELEASE_AT_OR_BELOW(major,minor) ( ((major) < 1040 && XCHAL_HAVE_XEA2) ? 0 \ + : ((major) > 1050 && XCHAL_HAVE_XEA1) ? 1 \ + : XTHAL_MAYBE ) +# define XCHAL_HW_RELEASE_AT_OR_ABOVE(major,minor) ( ((major) >= 2000 && XCHAL_HAVE_XEA1) ? 0 \ + : (XTHAL_REL_LE(major,minor, 1040,0) && XCHAL_HAVE_XEA2) ? 1 \ + : XTHAL_MAYBE ) +# define XCHAL_HW_RELEASE_AT(major,minor) ( (((major) < 1040 && XCHAL_HAVE_XEA2) || \ + ((major) >= 2000 && XCHAL_HAVE_XEA1)) ? 0 : XTHAL_MAYBE) +# define XCHAL_HW_RELEASE_MAJOR_AT(major) XCHAL_HW_RELEASE_AT(major,0) +#endif + +/* Specific errata: */ + +/* Erratum T1020.H13, T1030.H7, T1040.H10, T1050.H4 (fixed in T1040.3 and T1050.1; + * relevant only in XEA1, kernel-vector mode, level-one interrupts and overflows enabled): + */ + +#define XCHAL_MAYHAVE_ERRATUM_XEA1KWIN \ + (XCHAL_HAVE_XEA1 && \ + (XCHAL_HW_RELEASE_AT_OR_BELOW(1040,2) != 0 || \ + XCHAL_HW_RELEASE_AT(1050,0))) + +/* Erratum 453 present in RE-2013.2 up to RF-2014.0, fixed in RF-2014.1. + * Applies to specific set of configuration options. + * Part of the workaround is to add ISYNC at certain points in the code. + * The workaround gated by this macro can be disabled if not needed, e.g. if + * zero-overhead loop buffer will be disabled, by defining _NO_ERRATUM_453. + */ + +#if (XCHAL_HW_MAX_VERSION >= XTENSA_HWVERSION_RE_2013_2 && \ + XCHAL_HW_MIN_VERSION <= XTENSA_HWVERSION_RF_2014_0 && \ + XCHAL_ICACHE_SIZE != 0 && XCHAL_HAVE_PIF /*covers also AXI/AHB*/ && \ + XCHAL_HAVE_LOOPS && XCHAL_LOOP_BUFFER_SIZE != 0 && \ + XCHAL_CLOCK_GATING_GLOBAL && !defined(_NO_ERRATUM_453)) +# define XCHAL_ERRATUM_453 1 +#else +# define XCHAL_ERRATUM_453 0 +#endif + +/* Erratum 497 present in RE-2012.2 up to RG/RF-2015.2 + * Applies to specific set of configuration options. + * Workaround is to add MEMWs after at most 8 cache WB instructions + */ + +#if (((XCHAL_HW_MAX_VERSION >= XTENSA_HWVERSION_RE_2012_0 && \ + XCHAL_HW_MIN_VERSION <= XTENSA_HWVERSION_RF_2015_2) || \ + (XCHAL_HW_MAX_VERSION >= XTENSA_HWVERSION_RG_2015_0 && \ + XCHAL_HW_MIN_VERSION <= XTENSA_HWVERSION_RG_2015_2)) && \ + XCHAL_DCACHE_IS_WRITEBACK && \ + XCHAL_HAVE_AXI && \ + XCHAL_HAVE_PIF_WR_RESP && \ + XCHAL_HAVE_PIF_REQ_ATTR && !defined(_NO_ERRATUM_497)) +# define XCHAL_ERRATUM_497 1 +#else +# define XCHAL_ERRATUM_497 0 +#endif + +#endif /*__ARCH_XTENSA_INCUDE_XTENSA_CORE_H*/ diff --git a/arch/xtensa/src/common/xtensa_timer.h b/arch/xtensa/src/common/xtensa_timer.h index b4fdf357eff..f9eadbe9834 100644 --- a/arch/xtensa/src/common/xtensa_timer.h +++ b/arch/xtensa/src/common/xtensa_timer.h @@ -34,11 +34,12 @@ #define __ARCH_XTENSA_SRC_COMMON_XTENSA_TIMER_H #ifdef __ASSEMBLER__ -#include +#include #endif -#include -#include +#include +#include +#include /* Select timer to use for periodic tick, and determine its interrupt number * and priority. User may specify a timer by defining XT_TIMER_INDEX with -D,