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[BSP] move libcpu/mips/x1000 to bsp/x1000/cpu

This commit is contained in:
Bernard Xiong 2019-12-11 11:01:40 +08:00
parent ea507e2e81
commit a972fcc0b5
52 changed files with 6432 additions and 1759 deletions
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2
bsp/x1000/SConstruct
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@ -28,7 +28,7 @@ Export('RTT_ROOT')
Export('rtconfig')
# prepare building environment
objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=True)
if GetDepend('RT_USING_HARD_FLOAT'):
env['CCFLAGS'] = env['CCFLAGS'].replace('-msoft-float', '-mhard-float')

18
bsp/x1000/cpu/SConscript Normal file
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@ -0,0 +1,18 @@
# RT-Thread building script for bridge
import os
from building import *
Import('rtconfig')
cwd = GetCurrentDir()
group = []
list = os.listdir(cwd)
# add common code files
group = group + SConscript(os.path.join('common', 'SConscript'))
# cpu porting code files
group = group + SConscript(os.path.join(rtconfig.CPU, 'SConscript'))
Return('group')

0
libcpu/mips/x1000/SConscript → bsp/x1000/cpu/common/SConscript
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220
bsp/x1000/cpu/common/asm.h Normal file
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@ -0,0 +1,220 @@
/*
* 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) 1995, 1996, 1997, 1999, 2001 by Ralf Baechle
* Copyright (C) 1999 by Silicon Graphics, Inc.
* Copyright (C) 2001 MIPS Technologies, Inc.
* Copyright (C) 2002 Maciej W. Rozycki
*
* Some useful macros for MIPS assembler code
*
* Some of the routines below contain useless nops that will be optimized
* away by gas in -O mode. These nops are however required to fill delay
* slots in noreorder mode.
*/
#ifndef __ASM_H__
#define __ASM_H__
/*
* LEAF - declare leaf routine
*/
#define LEAF(symbol) \
.globl symbol; \
.align 2; \
.type symbol,@function; \
.ent symbol,0; \
symbol: .frame sp,0,ra
/*
* NESTED - declare nested routine entry point
*/
#define NESTED(symbol, framesize, rpc) \
.globl symbol; \
.align 2; \
.type symbol,@function; \
.ent symbol,0; \
symbol: .frame sp, framesize, rpc
/*
* END - mark end of function
*/
#define END(function) \
.end function; \
.size function,.-function
/*
* EXPORT - export definition of symbol
*/
#define EXPORT(symbol) \
.globl symbol; \
symbol:
/*
* FEXPORT - export definition of a function symbol
*/
#define FEXPORT(symbol) \
.globl symbol; \
.type symbol,@function; \
symbol:
/*
* Global data declaration with size.
*/
#define EXPORTS(name,sz) \
.globl name; \
.type name,@object; \
.size name,sz; \
name:
/*
* Weak data declaration with size.
*/
#define WEXPORT(name,sz) \
.weakext name; \
.type name,@object; \
.size name,sz; \
name:
/*
* Global data reference with size.
*/
#define IMPORT(name, size) \
.extern name,size
/*
* Global zeroed data.
*/
#define BSS(name,size) \
.type name,@object; \
.comm name,size
/*
* Local zeroed data.
*/
#define LBSS(name,size) \
.lcomm name,size
/*
* ABS - export absolute symbol
*/
#define ABS(symbol,value) \
.globl symbol; \
symbol = value
#define TEXT(msg) \
.pushsection .data; \
8: .asciiz msg; \
.popsection;
#define ENTRY(name) \
.globl name; \
.align 2; \
.ent name,0; \
name##:
/*
* Macros to handle different pointer/register sizes for 32/64-bit code
*/
/*
* Size of a register
*/
#define SZREG 4
/*
* Use the following macros in assemblercode to load/store registers,
* pointers etc.
*/
#define REG_S sw
#define REG_L lw
#define REG_SUBU subu
#define REG_ADDU addu
/*
* How to add/sub/load/store/shift C int variables.
*/
#define INT_ADD add
#define INT_ADDU addu
#define INT_ADDI addi
#define INT_ADDIU addiu
#define INT_SUB sub
#define INT_SUBU subu
#define INT_L lw
#define INT_S sw
#define INT_SLL sll
#define INT_SLLV sllv
#define INT_SRL srl
#define INT_SRLV srlv
#define INT_SRA sra
#define INT_SRAV srav
/*
* How to add/sub/load/store/shift C long variables.
*/
#define LONG_ADD add
#define LONG_ADDU addu
#define LONG_ADDI addi
#define LONG_ADDIU addiu
#define LONG_SUB sub
#define LONG_SUBU subu
#define LONG_L lw
#define LONG_S sw
#define LONG_SLL sll
#define LONG_SLLV sllv
#define LONG_SRL srl
#define LONG_SRLV srlv
#define LONG_SRA sra
#define LONG_SRAV srav
#define LONG .word
#define LONGSIZE 4
#define LONGMASK 3
#define LONGLOG 2
/*
* How to add/sub/load/store/shift pointers.
*/
#define PTR_ADD add
#define PTR_ADDU addu
#define PTR_ADDI addi
#define PTR_ADDIU addiu
#define PTR_SUB sub
#define PTR_SUBU subu
#define PTR_L lw
#define PTR_S sw
#define PTR_LA la
#define PTR_SLL sll
#define PTR_SLLV sllv
#define PTR_SRL srl
#define PTR_SRLV srlv
#define PTR_SRA sra
#define PTR_SRAV srav
#define PTR_SCALESHIFT 2
#define PTR .word
#define PTRSIZE 4
#define PTRLOG 2
/*
* Some cp0 registers were extended to 64bit for MIPS III.
*/
#define MFC0 mfc0
#define MTC0 mtc0
#define SSNOP sll zero, zero, 1
#endif /* end of __ASM_H__ */

166
bsp/x1000/cpu/common/exception.h Normal file
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@ -0,0 +1,166 @@
/*
* File : cpu.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2010, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-05-17 swkyer first version
*/
#ifndef __EXCEPTION_H__
#define __EXCEPTION_H__
/*
* important register numbers
*/
#define REG_EPC 37
#define REG_FP 72
#define REG_SP 29
/*
* Stack layout for the GDB exception handler
* Derived from the stack layout described in asm-mips/stackframe.h
*
* The first PTRSIZE*6 bytes are argument save space for C subroutines.
*/
#define NUMREGS 90
#define GDB_FR_REG0 (PTRSIZE*6) /* 0 */
#define GDB_FR_REG1 ((GDB_FR_REG0) + LONGSIZE) /* 1 */
#define GDB_FR_REG2 ((GDB_FR_REG1) + LONGSIZE) /* 2 */
#define GDB_FR_REG3 ((GDB_FR_REG2) + LONGSIZE) /* 3 */
#define GDB_FR_REG4 ((GDB_FR_REG3) + LONGSIZE) /* 4 */
#define GDB_FR_REG5 ((GDB_FR_REG4) + LONGSIZE) /* 5 */
#define GDB_FR_REG6 ((GDB_FR_REG5) + LONGSIZE) /* 6 */
#define GDB_FR_REG7 ((GDB_FR_REG6) + LONGSIZE) /* 7 */
#define GDB_FR_REG8 ((GDB_FR_REG7) + LONGSIZE) /* 8 */
#define GDB_FR_REG9 ((GDB_FR_REG8) + LONGSIZE) /* 9 */
#define GDB_FR_REG10 ((GDB_FR_REG9) + LONGSIZE) /* 10 */
#define GDB_FR_REG11 ((GDB_FR_REG10) + LONGSIZE) /* 11 */
#define GDB_FR_REG12 ((GDB_FR_REG11) + LONGSIZE) /* 12 */
#define GDB_FR_REG13 ((GDB_FR_REG12) + LONGSIZE) /* 13 */
#define GDB_FR_REG14 ((GDB_FR_REG13) + LONGSIZE) /* 14 */
#define GDB_FR_REG15 ((GDB_FR_REG14) + LONGSIZE) /* 15 */
#define GDB_FR_REG16 ((GDB_FR_REG15) + LONGSIZE) /* 16 */
#define GDB_FR_REG17 ((GDB_FR_REG16) + LONGSIZE) /* 17 */
#define GDB_FR_REG18 ((GDB_FR_REG17) + LONGSIZE) /* 18 */
#define GDB_FR_REG19 ((GDB_FR_REG18) + LONGSIZE) /* 19 */
#define GDB_FR_REG20 ((GDB_FR_REG19) + LONGSIZE) /* 20 */
#define GDB_FR_REG21 ((GDB_FR_REG20) + LONGSIZE) /* 21 */
#define GDB_FR_REG22 ((GDB_FR_REG21) + LONGSIZE) /* 22 */
#define GDB_FR_REG23 ((GDB_FR_REG22) + LONGSIZE) /* 23 */
#define GDB_FR_REG24 ((GDB_FR_REG23) + LONGSIZE) /* 24 */
#define GDB_FR_REG25 ((GDB_FR_REG24) + LONGSIZE) /* 25 */
#define GDB_FR_REG26 ((GDB_FR_REG25) + LONGSIZE) /* 26 */
#define GDB_FR_REG27 ((GDB_FR_REG26) + LONGSIZE) /* 27 */
#define GDB_FR_REG28 ((GDB_FR_REG27) + LONGSIZE) /* 28 */
#define GDB_FR_REG29 ((GDB_FR_REG28) + LONGSIZE) /* 29 */
#define GDB_FR_REG30 ((GDB_FR_REG29) + LONGSIZE) /* 30 */
#define GDB_FR_REG31 ((GDB_FR_REG30) + LONGSIZE) /* 31 */
/*
* Saved special registers
*/
#define GDB_FR_STATUS ((GDB_FR_REG31) + LONGSIZE) /* 32 */
#define GDB_FR_LO ((GDB_FR_STATUS) + LONGSIZE) /* 33 */
#define GDB_FR_HI ((GDB_FR_LO) + LONGSIZE) /* 34 */
#define GDB_FR_BADVADDR ((GDB_FR_HI) + LONGSIZE) /* 35 */
#define GDB_FR_CAUSE ((GDB_FR_BADVADDR) + LONGSIZE) /* 36 */
#define GDB_FR_EPC ((GDB_FR_CAUSE) + LONGSIZE) /* 37 */
///*
// * Saved floating point registers
// */
//#define GDB_FR_FPR0 ((GDB_FR_EPC) + LONGSIZE) /* 38 */
//#define GDB_FR_FPR1 ((GDB_FR_FPR0) + LONGSIZE) /* 39 */
//#define GDB_FR_FPR2 ((GDB_FR_FPR1) + LONGSIZE) /* 40 */
//#define GDB_FR_FPR3 ((GDB_FR_FPR2) + LONGSIZE) /* 41 */
//#define GDB_FR_FPR4 ((GDB_FR_FPR3) + LONGSIZE) /* 42 */
//#define GDB_FR_FPR5 ((GDB_FR_FPR4) + LONGSIZE) /* 43 */
//#define GDB_FR_FPR6 ((GDB_FR_FPR5) + LONGSIZE) /* 44 */
//#define GDB_FR_FPR7 ((GDB_FR_FPR6) + LONGSIZE) /* 45 */
//#define GDB_FR_FPR8 ((GDB_FR_FPR7) + LONGSIZE) /* 46 */
//#define GDB_FR_FPR9 ((GDB_FR_FPR8) + LONGSIZE) /* 47 */
//#define GDB_FR_FPR10 ((GDB_FR_FPR9) + LONGSIZE) /* 48 */
//#define GDB_FR_FPR11 ((GDB_FR_FPR10) + LONGSIZE) /* 49 */
//#define GDB_FR_FPR12 ((GDB_FR_FPR11) + LONGSIZE) /* 50 */
//#define GDB_FR_FPR13 ((GDB_FR_FPR12) + LONGSIZE) /* 51 */
//#define GDB_FR_FPR14 ((GDB_FR_FPR13) + LONGSIZE) /* 52 */
//#define GDB_FR_FPR15 ((GDB_FR_FPR14) + LONGSIZE) /* 53 */
//#define GDB_FR_FPR16 ((GDB_FR_FPR15) + LONGSIZE) /* 54 */
//#define GDB_FR_FPR17 ((GDB_FR_FPR16) + LONGSIZE) /* 55 */
//#define GDB_FR_FPR18 ((GDB_FR_FPR17) + LONGSIZE) /* 56 */
//#define GDB_FR_FPR19 ((GDB_FR_FPR18) + LONGSIZE) /* 57 */
//#define GDB_FR_FPR20 ((GDB_FR_FPR19) + LONGSIZE) /* 58 */
//#define GDB_FR_FPR21 ((GDB_FR_FPR20) + LONGSIZE) /* 59 */
//#define GDB_FR_FPR22 ((GDB_FR_FPR21) + LONGSIZE) /* 60 */
//#define GDB_FR_FPR23 ((GDB_FR_FPR22) + LONGSIZE) /* 61 */
//#define GDB_FR_FPR24 ((GDB_FR_FPR23) + LONGSIZE) /* 62 */
//#define GDB_FR_FPR25 ((GDB_FR_FPR24) + LONGSIZE) /* 63 */
//#define GDB_FR_FPR26 ((GDB_FR_FPR25) + LONGSIZE) /* 64 */
//#define GDB_FR_FPR27 ((GDB_FR_FPR26) + LONGSIZE) /* 65 */
//#define GDB_FR_FPR28 ((GDB_FR_FPR27) + LONGSIZE) /* 66 */
//#define GDB_FR_FPR29 ((GDB_FR_FPR28) + LONGSIZE) /* 67 */
//#define GDB_FR_FPR30 ((GDB_FR_FPR29) + LONGSIZE) /* 68 */
//#define GDB_FR_FPR31 ((GDB_FR_FPR30) + LONGSIZE) /* 69 */
//
//#define GDB_FR_FSR ((GDB_FR_FPR31) + LONGSIZE) /* 70 */
//#define GDB_FR_FIR ((GDB_FR_FSR) + LONGSIZE) /* 71 */
//#define GDB_FR_FRP ((GDB_FR_FIR) + LONGSIZE) /* 72 */
//
//#define GDB_FR_DUMMY ((GDB_FR_FRP) + LONGSIZE) /* 73, unused ??? */
//
///*
// * Again, CP0 registers
// */
//#define GDB_FR_CP0_INDEX ((GDB_FR_DUMMY) + LONGSIZE) /* 74 */
#define GDB_FR_FRP ((GDB_FR_EPC) + LONGSIZE) /* 72 */
#define GDB_FR_CP0_INDEX ((GDB_FR_FRP) + LONGSIZE) /* 74 */
#define GDB_FR_CP0_RANDOM ((GDB_FR_CP0_INDEX) + LONGSIZE) /* 75 */
#define GDB_FR_CP0_ENTRYLO0 ((GDB_FR_CP0_RANDOM) + LONGSIZE)/* 76 */
#define GDB_FR_CP0_ENTRYLO1 ((GDB_FR_CP0_ENTRYLO0) + LONGSIZE)/* 77 */
#define GDB_FR_CP0_CONTEXT ((GDB_FR_CP0_ENTRYLO1) + LONGSIZE)/* 78 */
#define GDB_FR_CP0_PAGEMASK ((GDB_FR_CP0_CONTEXT) + LONGSIZE)/* 79 */
#define GDB_FR_CP0_WIRED ((GDB_FR_CP0_PAGEMASK) + LONGSIZE)/* 80 */
#define GDB_FR_CP0_REG7 ((GDB_FR_CP0_WIRED) + LONGSIZE) /* 81 */
#define GDB_FR_CP0_REG8 ((GDB_FR_CP0_REG7) + LONGSIZE) /* 82 */
#define GDB_FR_CP0_REG9 ((GDB_FR_CP0_REG8) + LONGSIZE) /* 83 */
#define GDB_FR_CP0_ENTRYHI ((GDB_FR_CP0_REG9) + LONGSIZE) /* 84 */
#define GDB_FR_CP0_REG11 ((GDB_FR_CP0_ENTRYHI) + LONGSIZE)/* 85 */
#define GDB_FR_CP0_REG12 ((GDB_FR_CP0_REG11) + LONGSIZE) /* 86 */
#define GDB_FR_CP0_REG13 ((GDB_FR_CP0_REG12) + LONGSIZE) /* 87 */
#define GDB_FR_CP0_REG14 ((GDB_FR_CP0_REG13) + LONGSIZE) /* 88 */
#define GDB_FR_CP0_PRID ((GDB_FR_CP0_REG14) + LONGSIZE) /* 89 */
#define GDB_FR_SIZE ((((GDB_FR_CP0_PRID) + LONGSIZE) + (PTRSIZE-1)) & ~(PTRSIZE-1))
/*
* This is the same as above, but for the high-level
* part of the INT stub.
*/
typedef struct pt_regs_s
{
/* Saved main processor registers. */
rt_base_t regs[32];
/* Saved special registers. */
rt_base_t cp0_status;
rt_base_t hi;
rt_base_t lo;
rt_base_t cp0_badvaddr;
rt_base_t cp0_cause;
rt_base_t cp0_epc;
} pt_regs_t;
typedef void (* exception_func_t)(pt_regs_t *regs);
extern exception_func_t sys_exception_handlers[];
exception_func_t rt_set_except_vector(int n, exception_func_t func);
void install_default_execpt_handle(void);
#endif /* end of __EXCEPTION_H__ */

25
bsp/x1000/cpu/common/mips.h Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (c) 2006-2019, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2016-09-07 Urey first version
*/
#ifndef _COMMON_MIPS_H_
#define _COMMON_MIPS_H_
#include "mips_cfg.h"
#include "mips_types.h"
#include "mips_asm.h"
#include "mips_def.h"
#include "mips_regs.h"
#include "mips_addrspace.h"
#include "mips_cache.h"
#include "mips_context.h"
#include "mips_excpt.h"
#endif /* _COMMON_MIPS_H_ */

52
bsp/x1000/cpu/common/mips.inc Normal file
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@ -0,0 +1,52 @@
/*
* File : mips.inc
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2010, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-05-17 sangwei first version
*/
#ifndef __MIPS_INC__
#define __MIPS_INC__
#define zero $0 /* wired zero */
// #define at $1
#define v0 $2 /* return value */
#define v1 $3
#define a0 $4 /* argument registers */
#define a1 $5
#define a2 $6
#define a3 $7
#define t0 $8 /* caller saved */
#define t1 $9
#define t2 $10
#define t3 $11
#define t4 $12
#define t5 $13
#define t6 $14
#define t7 $15
#define s0 $16 /* callee saved */
#define s1 $17
#define s2 $18
#define s3 $19
#define s4 $20
#define s5 $21
#define s6 $22
#define s7 $23
#define t8 $24 /* caller saved */
#define t9 $25
#define jp $25 /* PIC jump register */
#define k0 $26 /* kernel scratch */
#define k1 $27
#define gp $28 /* global pointer */
#define sp $29 /* stack pointer */
#define fp $30 /* frame pointer */
#define s8 $30 /* same like fp! */
#define ra $31 /* return address */
#endif /* end of __MIPS_INC__ */

207
bsp/x1000/cpu/common/mips_addrspace.h Normal file
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@ -0,0 +1,207 @@
/*
* File : mips_addrspace.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ12ÈÕ Urey the first version
*/
#ifndef _MIPS_ADDRSPACE_H_
#define _MIPS_ADDRSPACE_H_
/*
* Configure language
*/
#ifdef __ASSEMBLY__
#define _ATYPE_
#define _ATYPE32_
#define _ATYPE64_
#define _CONST64_(x) x
#else
#define _ATYPE_ __PTRDIFF_TYPE__
#define _ATYPE32_ int
#define _ATYPE64_ __s64
#ifdef CONFIG_64BIT
#define _CONST64_(x) x ## L
#else
#define _CONST64_(x) x ## LL
#endif
#endif
/*
* 32-bit MIPS address spaces
*/
#ifdef __ASSEMBLY__
#define _ACAST32_
#define _ACAST64_
#else
#define _ACAST32_ (_ATYPE_)(_ATYPE32_) /* widen if necessary */
#define _ACAST64_ (_ATYPE64_) /* do _not_ narrow */
#endif
/*
* Returns the kernel segment base of a given address
*/
#define KSEGX(a) ((_ACAST32_ (a)) & 0xe0000000)
/*
* Returns the physical address of a CKSEGx / XKPHYS address
*/
#define CPHYSADDR(a) ((_ACAST32_(a)) & 0x1fffffff)
#define XPHYSADDR(a) ((_ACAST64_(a)) & \
_CONST64_(0x000000ffffffffff))
#ifdef CONFIG_64BIT
/*
* Memory segments (64bit kernel mode addresses)
* The compatibility segments use the full 64-bit sign extended value. Note
* the R8000 doesn't have them so don't reference these in generic MIPS code.
*/
#define XKUSEG _CONST64_(0x0000000000000000)
#define XKSSEG _CONST64_(0x4000000000000000)
#define XKPHYS _CONST64_(0x8000000000000000)
#define XKSEG _CONST64_(0xc000000000000000)
#define CKSEG0 _CONST64_(0xffffffff80000000)
#define CKSEG1 _CONST64_(0xffffffffa0000000)
#define CKSSEG _CONST64_(0xffffffffc0000000)
#define CKSEG3 _CONST64_(0xffffffffe0000000)
#define CKSEG0ADDR(a) (CPHYSADDR(a) | CKSEG0)
#define CKSEG1ADDR(a) (CPHYSADDR(a) | CKSEG1)
#define CKSEG2ADDR(a) (CPHYSADDR(a) | CKSEG2)
#define CKSEG3ADDR(a) (CPHYSADDR(a) | CKSEG3)
#else
#define CKSEG0ADDR(a) (CPHYSADDR(a) | KSEG0BASE)
#define CKSEG1ADDR(a) (CPHYSADDR(a) | KSEG1BASE)
#define CKSEG2ADDR(a) (CPHYSADDR(a) | KSEG2BASE)
#define CKSEG3ADDR(a) (CPHYSADDR(a) | KSEG3BASE)
/*
* Map an address to a certain kernel segment
*/
#define KSEG0ADDR(a) (CPHYSADDR(a) | KSEG0BASE)
#define KSEG1ADDR(a) (CPHYSADDR(a) | KSEG1BASE)
#define KSEG2ADDR(a) (CPHYSADDR(a) | KSEG2BASE)
#define KSEG3ADDR(a) (CPHYSADDR(a) | KSEG3BASE)
/*
* Memory segments (32bit kernel mode addresses)
* These are the traditional names used in the 32-bit universe.
*/
//#define KUSEGBASE 0x00000000
//#define KSEG0BASE 0x80000000
//#define KSEG1BASE 0xa0000000
//#define KSEG2BASE 0xc0000000
//#define KSEG3BASE 0xe0000000
#define CKUSEG 0x00000000
#define CKSEG0 0x80000000
#define CKSEG1 0xa0000000
#define CKSEG2 0xc0000000
#define CKSEG3 0xe0000000
#endif
/*
* Cache modes for XKPHYS address conversion macros
*/
#define K_CALG_COH_EXCL1_NOL2 0
#define K_CALG_COH_SHRL1_NOL2 1
#define K_CALG_UNCACHED 2
#define K_CALG_NONCOHERENT 3
#define K_CALG_COH_EXCL 4
#define K_CALG_COH_SHAREABLE 5
#define K_CALG_NOTUSED 6
#define K_CALG_UNCACHED_ACCEL 7
/*
* 64-bit address conversions
*/
#define PHYS_TO_XKSEG_UNCACHED(p) PHYS_TO_XKPHYS(K_CALG_UNCACHED, (p))
#define PHYS_TO_XKSEG_CACHED(p) PHYS_TO_XKPHYS(K_CALG_COH_SHAREABLE, (p))
#define XKPHYS_TO_PHYS(p) ((p) & TO_PHYS_MASK)
#define PHYS_TO_XKPHYS(cm, a) (_CONST64_(0x8000000000000000) | \
(_CONST64_(cm) << 59) | (a))
/*
* Returns the uncached address of a sdram address
*/
#ifndef __ASSEMBLY__
#if defined(CONFIG_SOC_AU1X00) || defined(CONFIG_TB0229)
/* We use a 36 bit physical address map here and
cannot access physical memory directly from core */
#define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000)
#else /* !CONFIG_SOC_AU1X00 */
#define UNCACHED_SDRAM(a) CKSEG1ADDR(a)
#endif /* CONFIG_SOC_AU1X00 */
#endif /* __ASSEMBLY__ */
/*
* The ultimate limited of the 64-bit MIPS architecture: 2 bits for selecting
* the region, 3 bits for the CCA mode. This leaves 59 bits of which the
* R8000 implements most with its 48-bit physical address space.
*/
#define TO_PHYS_MASK _CONST64_(0x07ffffffffffffff) /* 2^^59 - 1 */
#ifndef CONFIG_CPU_R8000
/*
* The R8000 doesn't have the 32-bit compat spaces so we don't define them
* in order to catch bugs in the source code.
*/
#define COMPAT_K1BASE32 _CONST64_(0xffffffffa0000000)
#define PHYS_TO_COMPATK1(x) ((x) | COMPAT_K1BASE32) /* 32-bit compat k1 */
#endif
#define KDM_TO_PHYS(x) (_ACAST64_ (x) & TO_PHYS_MASK)
#define PHYS_TO_K0(x) (_ACAST64_ (x) | CAC_BASE)
#ifndef __ASSEMBLY__
/*
* Change virtual addresses to physical addresses and vv.
* These are trivial on the 1:1 Linux/MIPS mapping
*/
static inline phys_addr_t virt_to_phys(volatile void * address)
{
#ifndef CONFIG_64BIT
return CPHYSADDR(address);
#else
return XPHYSADDR(address);
#endif
}
static inline void * phys_to_virt(unsigned long address)
{
#ifndef CONFIG_64BIT
return (void *)KSEG0ADDR(address);
#else
return (void *)CKSEG0ADDR(address);
#endif
}
#endif
#endif /* _MIPS_ADDRSPACE_H_ */

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/*
* File : mips_asm.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ7ÈÕ Urey the first version
*/
#ifndef _MIPS_ASM_H_
#define _MIPS_ASM_H_
/* ********************************************************************* */
/* Interface macro & data definition */
#ifdef __ASSEMBLY__
/******** ASSEMBLER SPECIFIC DEFINITIONS ********/
#ifdef __ghs__
#define ALIGN(x) .##align (1 << (x))
#else
#define ALIGN(x) .##align (x)
#endif
#ifdef __ghs__
#define SET_MIPS3()
#define SET_MIPS0()
#define SET_PUSH()
#define SET_POP()
#else
#define SET_MIPS3() .##set mips3
#define SET_MIPS0() .##set mips0
#define SET_PUSH() .##set push
#define SET_POP() .##set pop
#endif
/* Different assemblers have different requirements for how to
* indicate that the next section is bss :
*
* Some use : .bss
* Others use : .section bss
*
* We select which to use based on _BSS_OLD_, which may be defined
* in makefile.
*/
#ifdef _BSS_OLD_
#define BSS .##section bss
#else
#define BSS .##bss
#endif
#define LEAF(name)\
.##text;\
.##globl name;\
.##ent name;\
name:
#define SLEAF(name)\
.##text;\
.##ent name;\
name:
#ifdef __ghs__
#define END(name)\
.##end name
#else
#define END(name)\
.##size name,.-name;\
.##end name
#endif
#define EXTERN(name)
#else
#define U64 unsigned long long
#define U32 unsigned int
#define U16 unsigned short
#define U8 unsigned char
#define S64 signed long long
#define S32 int
#define S16 short int
#define S8 signed char
//#define bool U8
#ifndef _SIZE_T_
#define _SIZE_T_
#ifdef __ghs__
typedef unsigned int size_t;
#else
typedef unsigned long size_t;
#endif
#endif
/* Sets the result on bPort */
#define BIT_SET(bPort,bBitMask) (bPort |= bBitMask)
#define BIT_CLR(bPort,bBitMask) (bPort &= ~bBitMask)
/* Returns the result */
#define GET_BIT_SET(bPort,bBitMask) (bPort | bBitMask)
#define GET_BIT_CLR(bPort,bBitMask) (bPort & ~bBitMask)
/* Returns 0 if the condition is False & a non-zero value if it is True */
#define TEST_BIT_SET(bPort,bBitMask) (bPort & bBitMask)
#define TEST_BIT_CLR(bPort,bBitMask) ((~bPort) & bBitMask)
/* Split union definitions */
typedef union tunSU16
{
U16 hwHW;
struct tst2U8
{
U8 bB0;
U8 bB1;
}st2U8;
}tunSU16;
typedef union tunSU32
{
U32 wW;
struct tst2U16
{
U16 hwHW0;
U16 hwHW1;
}st2U16;
struct tst4U8
{
U8 bB0;
U8 bB1;
U8 bB2;
U8 bB3;
}st4U8;
}tunSU32;
#endif /* #ifdef __ASSEMBLY__ */
/******** DEFINITIONS FOR BOTH ASSEMBLER AND C ********/
#define NO_ERR 0x00000000 /* operation completed successfully */
#define ERR 0xffffffff /* operation completed not successfully */
#define False 0
#define True !False
#ifndef NULL
#define NULL ((void *)0)
#endif//NULL
#ifndef MIN
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#endif//MIN
#ifndef MAX
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#endif//MAX
#define MAXUINT(w) (\
((w) == sizeof(U8)) ? 0xFFU :\
((w) == sizeof(U16)) ? 0xFFFFU :\
((w) == sizeof(U32)) ? 0xFFFFFFFFU : 0\
)
#define MAXINT(w) (\
((w) == sizeof(S8)) ? 0x7F :\
((w) == sizeof(S16)) ? 0x7FFF :\
((w) == sizeof(S32)) ? 0x7FFFFFFF : 0\
)
#define MSK(n) ((1 << (n)) - 1)
#define KUSEG_MSK 0x80000000
#define KSEG_MSK 0xE0000000
#define KUSEGBASE 0x00000000
#define KSEG0BASE 0x80000000
#define KSEG1BASE 0xA0000000
#define KSSEGBASE 0xC0000000
#define KSEG3BASE 0xE0000000
/* Below macros perform the following functions :
*
* KSEG0 : Converts KSEG0/1 or physical addr (below 0.5GB) to KSEG0.
* KSEG1 : Converts KSEG0/1 or physical addr (below 0.5GB) to KSEG1.
* PHYS : Converts KSEG0/1 or physical addr (below 0.5GB) to physical address.
* KSSEG : Not relevant for converting, but used for determining range.
* KSEG3 : Not relevant for converting, but used for determining range.
* KUSEG : Not relevant for converting, but used for determining range.
* KSEG0A : Same as KSEG0 but operates on register rather than constant.
* KSEG1A : Same as KSEG1 but operates on register rather than constant.
* PHYSA : Same as PHYS but operates on register rather than constant.
* CACHED : Alias for KSEG0 macro .
* (Note that KSEG0 cache attribute is determined by K0
* field of Config register, but this is typically cached).
* UNCACHED : Alias for KSEG1 macro .
*/
#ifdef __ASSEMBLY__
#define KSEG0(addr) (((addr) & ~KSEG_MSK) | KSEG0BASE)
#define KSEG1(addr) (((addr) & ~KSEG_MSK) | KSEG1BASE)
#define KSSEG(addr) (((addr) & ~KSEG_MSK) | KSSEGBASE)
#define KSEG3(addr) (((addr) & ~KSEG_MSK) | KSEG3BASE)
#define KUSEG(addr) (((addr) & ~KUSEG_MSK) | KUSEGBASE)
#define PHYS(addr) ( (addr) & ~KSEG_MSK)
#define KSEG0A(reg) and reg, ~KSEG_MSK; or reg, KSEG0BASE
#define KSEG1A(reg) and reg, ~KSEG_MSK; or reg, KSEG1BASE
#define PHYSA(reg) and reg, ~KSEG_MSK
#else
#define KSEG0(addr) (((U32)(addr) & ~KSEG_MSK) | KSEG0BASE)
#define KSEG1(addr) (((U32)(addr) & ~KSEG_MSK) | KSEG1BASE)
#define KSSEG(addr) (((U32)(addr) & ~KSEG_MSK) | KSSEGBASE)
#define KSEG3(addr) (((U32)(addr) & ~KSEG_MSK) | KSEG3BASE)
#define KUSEG(addr) (((U32)(addr) & ~KUSEG_MSK) | KUSEGBASE)
#define PHYS(addr) ((U32)(addr) & ~KSEG_MSK)
#endif
#define CACHED(addr) KSEG0(addr)
#define UNCACHED(addr) KSEG1(addr)
#ifdef __ASSEMBLY__
/* Macroes to access variables at constant addresses
* Compensates for signed 16 bit displacement
* Typical use: li a0, HIKSEG1(ATLAS_ASCIIWORD)
* sw v1, LO_OFFS(ATLAS_ASCIIWORD)(a0)
*/
#define HIKSEG0(addr) ((KSEG0(addr) + 0x8000) & 0xffff0000)
#define HIKSEG1(addr) ((KSEG1(addr) + 0x8000) & 0xffff0000)
#define HI_PART(addr) (((addr) + 0x8000) & 0xffff0000)
#define LO_OFFS(addr) ((addr) & 0xffff)
#endif
/* Most/Least significant 32 bit from 64 bit double word */
#define HI32(data64) ((U32)(data64 >> 32))
#define LO32(data64) ((U32)(data64 & 0xFFFFFFFF))
#if ((!defined(__ASSEMBLY__)) && (!defined(__LANGUAGE_ASSEMBLY)))
#define REG8( addr ) (*(volatile U8 *) (addr))
#define REG16( addr ) (*(volatile U16 *)(addr))
#define REG32( addr ) (*(volatile U32 *)(addr))
#define REG64( addr ) (*(volatile U64 *)(addr))
#endif
/* Register field mapping */
#define REGFIELD(reg, rfld) (((reg) & rfld##_MSK) >> rfld##_SHF)
/* absolute register address, access */
#define REGA(addr) REG32(addr)
/* physical register address, access: base address + offsett */
#define REGP(base,phys) REG32( (U32)(base) + (phys) )
/* relative register address, access: base address + offsett */
#define REG(base,offs) REG32( (U32)(base) + offs##_##OFS )
/* relative register address, access: base address + offsett */
#define REG_8(base,offs) REG8( (U32)(base) + offs##_##OFS )
/* relative register address, access: base address + offsett */
#define REG_16(base,offs) REG16( (U32)(base) + offs##_##OFS )
/* relative register address, access: base address + offsett */
#define REG_64(base,offs) REG64( (U32)(base) + offs##_##OFS )
/**************************************
* Macroes not used by YAMON any more
* (kept for backwards compatibility)
*/
/* register read field */
#define REGARD(addr,fld) ((REGA(addr) & addr##_##fld##_##MSK) \
>> addr##_##fld##_##SHF)
/* register write numeric field value */
#define REGAWRI(addr,fld,intval) ((REGA(addr) & ~(addr##_##fld##_##MSK))\
| ((intval) << addr##_##fld##_##SHF))
/* register write enumerated field value */
#define REGAWRE(addr,fld,enumval) ((REGA(addr) & ~(addr##_##fld##_##MSK))\
| ((addr##_##fld##_##enumval) << addr##_##fld##_##SHF))
/* Examples:
*
* exccode = REGARD(CPU_CAUSE,EXC);
*
* REGA(SDR_CONTROL) = REGAWRI(OSG_CONTROL,TMO,17)
* | REGAWRE(OSG_CONTROL,DTYPE,PC1);
*/
/* register read field */
#define REGRD(base,offs,fld) ((REG(base,offs) & offs##_##fld##_##MSK) \
>> offs##_##fld##_##SHF)
/* register write numeric field value */
#define REGWRI(base,offs,fld,intval)((REG(base,offs)& ~(offs##_##fld##_##MSK))\
| (((intval) << offs##_##fld##_##SHF) & offs##_##fld##_##MSK))
/* register write enumerated field value */
#define REGWRE(base,offs,fld,enumval)((REG(base,offs) & ~(offs##_##fld##_##MSK))\
| ((offs##_##fld##_##enumval) << offs##_##fld##_##SHF))
/* physical register read field */
#define REGPRD(base,phys,fld) ((REGP(base,phys) & phys##_##fld##_##MSK) \
>> phys##_##fld##_##SHF)
/* physical register write numeric field value */
#define REGPWRI(base,phys,fld,intval)((REGP(base,phys)& ~(phys##_##fld##_##MSK))\
| ((intval) << phys##_##fld##_##SHF))
/* physical register write enumerated field value */
#define REGPWRE(base,phys,fld,enumval)((REGP(base,phys) & ~(phys##_##fld##_##MSK))\
| ((phys##_##fld##_##enumval) << phys##_##fld##_##SHF))
/*
* End of macroes not used by YAMON any more
*********************************************/
/* Endian related macros */
#define SWAP_BYTEADDR32( addr ) ( (addr) ^ 0x3 )
#define SWAP_U16ADDR32( addr ) ( (addr) ^ 0x2 )
/* Set byte address to little endian format */
#ifdef EL
#define SWAP_BYTEADDR_EL(addr) addr
#else
#define SWAP_BYTEADDR_EL(addr) SWAP_BYTEADDR32( addr )
#endif
/* Set byte address to big endian format */
#ifdef EB
#define SWAP_BYTEADDR_EB(addr) addr
#else
#define SWAP_BYTEADDR_EB(addr) SWAP_BYTEADDR32( addr )
#endif
/* Set U16 address to little endian format */
#ifdef EL
#define SWAP_U16ADDR_EL(addr) addr
#else
#define SWAP_U16ADDR_EL(addr) SWAP_U16ADDR32( addr )
#endif
/* Set U16 address to big endian format */
#ifdef EB
#define SWAP_U16ADDR_EB(addr) addr
#else
#define SWAP_U16ADDR_EB(addr) SWAP_U16ADDR32( addr )
#endif
#ifdef EL
#define REGW32LE(addr, data) REG32(addr) = (data)
#define REGR32LE(addr, data) (data) = REG32(addr)
#else
#define REGW32LE(addr, data) REG32(addr) = SWAPEND32(data)
#define REGR32LE(addr, data) (data) = REG32(addr), (data) = SWAPEND32(data)
#endif
/* Set of 'LE'-macros, convert by BE: */
#ifdef EL
#define CPU_TO_LE32( value ) (value)
#define LE32_TO_CPU( value ) (value)
#define CPU_TO_LE16( value ) (value)
#define LE16_TO_CPU( value ) (value)
#else
#define CPU_TO_LE32( value ) ( ( ((U32)value) << 24) | \
((0x0000FF00UL & ((U32)value)) << 8) | \
((0x00FF0000UL & ((U32)value)) >> 8) | \
( ((U32)value) >> 24) )
#define LE32_TO_CPU( value ) CPU_TO_LE32( value )
#define CPU_TO_LE16( value ) ( ((U16)(((U16)value) << 8)) | \
((U16)(((U16)value) >> 8)) )
#define LE16_TO_CPU( value ) CPU_TO_LE16( value )
#endif
/* Set of 'BE'-macros, convert by LE: */
#ifdef EB
#define CPU_TO_BE32( value ) (value)
#define BE32_TO_CPU( value ) (value)
#define CPU_TO_BE16( value ) (value)
#define BE16_TO_CPU( value ) (value)
#else
#define CPU_TO_BE32( value ) ( ( ((U32)value) << 24) | \
((0x0000FF00UL & ((U32)value)) << 8) | \
((0x00FF0000UL & ((U32)value)) >> 8) | \
( ((U32)value) >> 24) )
#define BE32_TO_CPU( value ) CPU_TO_BE32( value )
#define CPU_TO_BE16( value ) ( ((U16)(((U16)value) << 8)) | \
((U16)(((U16)value) >> 8)) )
#define BE16_TO_CPU( value ) CPU_TO_BE16( value )
#endif
/* Control characters */
#define CTRL_A ('A'-0x40)
#define CTRL_B ('B'-0x40)
#define CTRL_C ('C'-0x40)
#define CTRL_D ('D'-0x40)
#define CTRL_E ('E'-0x40)
#define CTRL_F ('F'-0x40)
#define CTRL_H ('H'-0x40)
#define CTRL_K ('K'-0x40)
#define CTRL_N ('N'-0x40)
#define CTRL_P ('P'-0x40)
#define CTRL_U ('U'-0x40)
#define BACKSPACE 0x08
#define DEL 0x7F
#define TAB 0x09
#define CR 0x0D /* Enter Key */
#define LF 0x0A
#define ESC 0x1B
#define SP 0x20
#define CSI 0x9B
/* DEF2STR(x) converts #define symbol to string */
#define DEF2STR1(x) #x
#define DEF2STR(x) DEF2STR1(x)
#endif /* _MIPS_ASM_H_ */

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/*
* File : mips_cache.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ7ÈÕ Urey the first version
*/
#include <rtthread.h>
#include "mips.h"
extern void cache_init(rt_ubase_t cache_size, rt_ubase_t cache_line_size);
void r4k_cache_init(void)
{
// cache_init(dcache_size, cpu_dcache_line_size);
}
void r4k_cache_flush_all(void)
{
blast_dcache16();
blast_icache16();
}
void r4k_icache_flush_all(void)
{
blast_icache16();
}
void r4k_icache_flush_range(rt_ubase_t addr, rt_ubase_t size)
{
rt_ubase_t end, a;
if (size > g_mips_core.icache_size)
{
blast_icache16();
}
else
{
rt_ubase_t ic_lsize = g_mips_core.icache_line_size;
a = addr & ~(ic_lsize - 1);
end = ((addr + size) - 1) & ~(ic_lsize - 1);
while (1)
{
flush_icache_line(a);
if (a == end)
break;
a += ic_lsize;
}
}
}
void r4k_icache_lock_range(rt_ubase_t addr, rt_ubase_t size)
{
rt_ubase_t end, a;
rt_ubase_t ic_lsize = g_mips_core.icache_line_size;
a = addr & ~(ic_lsize - 1);
end = ((addr + size) - 1) & ~(ic_lsize - 1);
while (1)
{
lock_icache_line(a);
if (a == end)
break;
a += ic_lsize;
}
}
void r4k_dcache_inv(rt_ubase_t addr, rt_ubase_t size)
{
rt_ubase_t end, a;
rt_ubase_t dc_lsize = g_mips_core.dcache_line_size;
a = addr & ~(dc_lsize - 1);
end = ((addr + size) - 1) & ~(dc_lsize - 1);
while (1)
{
invalidate_dcache_line(a);
if (a == end)
break;
a += dc_lsize;
}
}
void r4k_dcache_wback_inv(rt_ubase_t addr, rt_ubase_t size)
{
rt_ubase_t end, a;
if (size >= g_mips_core.dcache_size)
{
blast_dcache16();
}
else
{
rt_ubase_t dc_lsize = g_mips_core.dcache_line_size;
a = addr & ~(dc_lsize - 1);
end = ((addr + size) - 1) & ~(dc_lsize - 1);
while (1)
{
flush_dcache_line(a);
if (a == end)
break;
a += dc_lsize;
}
}
}
#define dma_cache_wback_inv(start,size) \
do { (void) (start); (void) (size); } while (0)
#define dma_cache_wback(start,size) \
do { (void) (start); (void) (size); } while (0)
#define dma_cache_inv(start,size) \
do { (void) (start); (void) (size); } while (0)
void r4k_dma_cache_sync(rt_ubase_t addr, rt_size_t size, enum dma_data_direction direction)
{
switch (direction)
{
case DMA_TO_DEVICE:
r4k_dcache_wback_inv(addr, size);
break;
case DMA_FROM_DEVICE:
r4k_dcache_wback_inv(addr, size);
break;
case DMA_BIDIRECTIONAL:
dma_cache_wback_inv(addr, size);
break;
default:
RT_ASSERT(0) ;
}
}

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/*
* File : mips_cache.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ10ÈÕ Urey the first version
*/
#ifndef _MIPS_CACHE_H_
#define _MIPS_CACHE_H_
#ifndef __ASSEMBLER__
#include <rtdef.h>
#include <mips_cfg.h>
/*
* Cache Operations available on all MIPS processors with R4000-style caches
*/
#define INDEX_INVALIDATE_I 0x00
#define INDEX_WRITEBACK_INV_D 0x01
#define INDEX_LOAD_TAG_I 0x04
#define INDEX_LOAD_TAG_D 0x05
#define INDEX_STORE_TAG_I 0x08
#define INDEX_STORE_TAG_D 0x09
#if defined(CONFIG_CPU_LOONGSON2)
#define HIT_INVALIDATE_I 0x00
#else
#define HIT_INVALIDATE_I 0x10
#endif
#define HIT_INVALIDATE_D 0x11
#define HIT_WRITEBACK_INV_D 0x15
/*
*The lock state is cleared by executing an Index
Invalidate, Index Writeback Invalidate, Hit
Invalidate, or Hit Writeback Invalidate
operation to the locked line, or via an Index
Store Tag operation with the lock bit reset in
the TagLo register.
*/
#define FETCH_AND_LOCK_I 0x1c
#define FETCH_AND_LOCK_D 0x1d
enum dma_data_direction
{
DMA_BIDIRECTIONAL = 0,
DMA_TO_DEVICE = 1,
DMA_FROM_DEVICE = 2,
DMA_NONE = 3,
};
/*
* R4000-specific cacheops
*/
#define CREATE_DIRTY_EXCL_D 0x0d
#define FILL 0x14
#define HIT_WRITEBACK_I 0x18
#define HIT_WRITEBACK_D 0x19
/*
* R4000SC and R4400SC-specific cacheops
*/
#define INDEX_INVALIDATE_SI 0x02
#define INDEX_WRITEBACK_INV_SD 0x03
#define INDEX_LOAD_TAG_SI 0x06
#define INDEX_LOAD_TAG_SD 0x07
#define INDEX_STORE_TAG_SI 0x0A
#define INDEX_STORE_TAG_SD 0x0B
#define CREATE_DIRTY_EXCL_SD 0x0f
#define HIT_INVALIDATE_SI 0x12
#define HIT_INVALIDATE_SD 0x13
#define HIT_WRITEBACK_INV_SD 0x17
#define HIT_WRITEBACK_SD 0x1b
#define HIT_SET_VIRTUAL_SI 0x1e
#define HIT_SET_VIRTUAL_SD 0x1f
/*
* R5000-specific cacheops
*/
#define R5K_PAGE_INVALIDATE_S 0x17
/*
* RM7000-specific cacheops
*/
#define PAGE_INVALIDATE_T 0x16
/*
* R10000-specific cacheops
*
* Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused.
* Most of the _S cacheops are identical to the R4000SC _SD cacheops.
*/
#define INDEX_WRITEBACK_INV_S 0x03
#define INDEX_LOAD_TAG_S 0x07
#define INDEX_STORE_TAG_S 0x0B
#define HIT_INVALIDATE_S 0x13
#define CACHE_BARRIER 0x14
#define HIT_WRITEBACK_INV_S 0x17
#define INDEX_LOAD_DATA_I 0x18
#define INDEX_LOAD_DATA_D 0x19
#define INDEX_LOAD_DATA_S 0x1b
#define INDEX_STORE_DATA_I 0x1c
#define INDEX_STORE_DATA_D 0x1d
#define INDEX_STORE_DATA_S 0x1f
#define cache_op(op, addr) \
__asm__ __volatile__( \
".set push\n" \
".set noreorder\n" \
".set mips3\n" \
"cache %0, %1\n" \
".set pop\n" \
: \
: "i" (op), "R" (*(unsigned char *)(addr)))
#define cache16_unroll32(base, op) \
__asm__ __volatile__( \
" .set noreorder \n" \
" .set mips3 \n" \
" cache %1, 0x000(%0); cache %1, 0x010(%0) \n" \
" cache %1, 0x020(%0); cache %1, 0x030(%0) \n" \
" cache %1, 0x040(%0); cache %1, 0x050(%0) \n" \
" cache %1, 0x060(%0); cache %1, 0x070(%0) \n" \
" cache %1, 0x080(%0); cache %1, 0x090(%0) \n" \
" cache %1, 0x0a0(%0); cache %1, 0x0b0(%0) \n" \
" cache %1, 0x0c0(%0); cache %1, 0x0d0(%0) \n" \
" cache %1, 0x0e0(%0); cache %1, 0x0f0(%0) \n" \
" cache %1, 0x100(%0); cache %1, 0x110(%0) \n" \
" cache %1, 0x120(%0); cache %1, 0x130(%0) \n" \
" cache %1, 0x140(%0); cache %1, 0x150(%0) \n" \
" cache %1, 0x160(%0); cache %1, 0x170(%0) \n" \
" cache %1, 0x180(%0); cache %1, 0x190(%0) \n" \
" cache %1, 0x1a0(%0); cache %1, 0x1b0(%0) \n" \
" cache %1, 0x1c0(%0); cache %1, 0x1d0(%0) \n" \
" cache %1, 0x1e0(%0); cache %1, 0x1f0(%0) \n" \
" .set mips0 \n" \
" .set reorder \n" \
: \
: "r" (base), \
"i" (op));
static inline void flush_icache_line_indexed(rt_ubase_t addr)
{
cache_op(INDEX_INVALIDATE_I, addr);
}
static inline void flush_dcache_line_indexed(rt_ubase_t addr)
{
cache_op(INDEX_WRITEBACK_INV_D, addr);
}
static inline void flush_icache_line(rt_ubase_t addr)
{
cache_op(HIT_INVALIDATE_I, addr);
}
static inline void lock_icache_line(rt_ubase_t addr)
{
cache_op(FETCH_AND_LOCK_I, addr);
}
static inline void lock_dcache_line(rt_ubase_t addr)
{
cache_op(FETCH_AND_LOCK_D, addr);
}
static inline void flush_dcache_line(rt_ubase_t addr)
{
cache_op(HIT_WRITEBACK_INV_D, addr);
}
static inline void invalidate_dcache_line(rt_ubase_t addr)
{
cache_op(HIT_INVALIDATE_D, addr);
}
static inline void blast_dcache16(void)
{
rt_ubase_t start = KSEG0BASE;
rt_ubase_t end = start + g_mips_core.dcache_size;
rt_ubase_t addr;
for (addr = start; addr < end; addr += g_mips_core.dcache_line_size)
cache16_unroll32(addr, INDEX_WRITEBACK_INV_D);
}
static inline void inv_dcache16(void)
{
rt_ubase_t start = KSEG0BASE;
rt_ubase_t end = start + g_mips_core.dcache_size;
rt_ubase_t addr;
for (addr = start; addr < end; addr += g_mips_core.dcache_line_size)
cache16_unroll32(addr, HIT_INVALIDATE_D);
}
static inline void blast_icache16(void)
{
rt_ubase_t start = KSEG0BASE;
rt_ubase_t end = start + g_mips_core.icache_size;
rt_ubase_t addr;
for (addr = start; addr < end; addr += g_mips_core.icache_line_size)
cache16_unroll32(addr, INDEX_INVALIDATE_I);
}
void r4k_cache_init(void);
void r4k_cache_flush_all(void);
void r4k_icache_flush_all(void);
void r4k_icache_flush_range(rt_ubase_t addr, rt_ubase_t size);
void r4k_icache_lock_range(rt_ubase_t addr, rt_ubase_t size);
void r4k_dcache_inv(rt_ubase_t addr, rt_ubase_t size);
void r4k_dcache_wback_inv(rt_ubase_t addr, rt_ubase_t size);
void r4k_dma_cache_sync(rt_ubase_t addr, rt_size_t size, enum dma_data_direction direction);
#endif
#endif /* _MIPS_CACHE_H_ */

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@ -0,0 +1,48 @@
/*
* File : mips_cfg.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ10ÈÕ Urey the first version
*/
#ifndef _MIPS_CFG_H_
#define _MIPS_CFG_H_
#ifndef __ASSEMBLY__
#include <stdint.h>
typedef struct mips32_core_cfg
{
uint16_t icache_line_size;
// uint16_t icache_lines_per_way;
// uint16_t icache_ways;
uint16_t icache_size;
uint16_t dcache_line_size;
// uint16_t dcache_lines_per_way;
// uint16_t dcache_ways;
uint16_t dcache_size;
uint16_t max_tlb_entries; /* number of tlb entry */
} mips32_core_cfg_t;
extern mips32_core_cfg_t g_mips_core;
#endif /* __ASSEMBLY__ */
#endif /* _MIPS_CFG_H_ */

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@ -0,0 +1,280 @@
/*
* File : mips_context_asm.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ7ÈÕ Urey the first version
*/
#ifndef _MIPS_CONTEXT_ASM_H_
#define _MIPS_CONTEXT_ASM_H_
#define CONTEXT_SIZE ( STK_CTX_SIZE + FPU_ADJ )
#ifdef __mips_hard_float
#define FPU_ADJ (32 * 4 + 8) /* FP0-FP31 + CP1_STATUS */
#define FPU_CTX ( CONTEXT_SIZE - FPU_ADJ )
#else
#define FPU_ADJ 0
#endif
#ifdef __ASSEMBLY__
#ifdef __mips_hard_float
.global _fpctx_save
.global _fpctx_load
#endif
.macro SAVE_CONTEXT
.set push
.set noat
.set noreorder
.set volatile
//save SP
move k1, sp
move k0, sp
subu sp, k1, CONTEXT_SIZE
sw k0, (29 * 4)(sp)
//save REG
sw $0, ( 0 * 4)(sp)
sw $1, ( 1 * 4)(sp)
sw $2, ( 2 * 4)(sp)
sw $3, ( 3 * 4)(sp)
sw $4, ( 4 * 4)(sp)
sw $5, ( 5 * 4)(sp)
sw $6, ( 6 * 4)(sp)
sw $7, ( 7 * 4)(sp)
sw $8, ( 8 * 4)(sp)
sw $9, ( 9 * 4)(sp)
sw $10, (10 * 4)(sp)
sw $11, (11 * 4)(sp)
sw $12, (12 * 4)(sp)
sw $13, (13 * 4)(sp)
sw $14, (14 * 4)(sp)
sw $15, (15 * 4)(sp)
sw $16, (16 * 4)(sp)
sw $17, (17 * 4)(sp)
sw $18, (18 * 4)(sp)
sw $19, (19 * 4)(sp)
sw $20, (20 * 4)(sp)
sw $21, (21 * 4)(sp)
sw $22, (22 * 4)(sp)
sw $23, (23 * 4)(sp)
sw $24, (24 * 4)(sp)
sw $25, (25 * 4)(sp)
/* K0 K1 */
sw $28, (28 * 4)(sp)
/* SP */
sw $30, (30 * 4)(sp)
sw $31, (31 * 4)(sp)
/* STATUS CAUSE EPC.... */
mfc0 $2, CP0_STATUS
sw $2, STK_OFFSET_SR(sp)
mfc0 $2, CP0_CAUSE
sw $2, STK_OFFSET_CAUSE(sp)
mfc0 $2, CP0_BADVADDR
sw $2, STK_OFFSET_BADVADDR(sp)
MFC0 $2, CP0_EPC
sw $2, STK_OFFSET_EPC(sp)
mfhi $2
sw $2, STK_OFFSET_HI(sp)
mflo $2
sw $2, STK_OFFSET_LO(sp)
#ifdef __mips_hard_float
add a0, sp,STK_CTX_SIZE
mfc0 t0, CP0_STATUS
.set push
.set at
or t0, M_StatusCU1
.set push
mtc0 t0, CP0_STATUS
cfc1 t0, CP1_STATUS
sw t0 , 0x00(a0)
swc1 $f0,(0x04 * 1)(a0)
swc1 $f1,(0x04 * 2)(a0)
swc1 $f2,(0x04 * 3)(a0)
swc1 $f3,(0x04 * 4)(a0)
swc1 $f4,(0x04 * 5)(a0)
swc1 $f5,(0x04 * 6)(a0)
swc1 $f6,(0x04 * 7)(a0)
swc1 $f7,(0x04 * 8)(a0)
swc1 $f8,(0x04 * 9)(a0)
swc1 $f9,(0x04 * 10)(a0)
swc1 $f10,(0x04 * 11)(a0)
swc1 $f11,(0x04 * 12)(a0)
swc1 $f12,(0x04 * 13)(a0)
swc1 $f13,(0x04 * 14)(a0)
swc1 $f14,(0x04 * 15)(a0)
swc1 $f15,(0x04 * 16)(a0)
swc1 $f16,(0x04 * 17)(a0)
swc1 $f17,(0x04 * 18)(a0)
swc1 $f18,(0x04 * 19)(a0)
swc1 $f19,(0x04 * 20)(a0)
swc1 $f20,(0x04 * 21)(a0)
swc1 $f21,(0x04 * 22)(a0)
swc1 $f22,(0x04 * 23)(a0)
swc1 $f23,(0x04 * 24)(a0)
swc1 $f24,(0x04 * 25)(a0)
swc1 $f25,(0x04 * 26)(a0)
swc1 $f26,(0x04 * 27)(a0)
swc1 $f27,(0x04 * 28)(a0)
swc1 $f28,(0x04 * 29)(a0)
swc1 $f29,(0x04 * 30)(a0)
swc1 $f30,(0x04 * 31)(a0)
swc1 $f31,(0x04 * 32)(a0)
nop
#endif
//restore a0
lw a0, (REG_A0 * 4)(sp)
.set pop
.endm
.macro RESTORE_CONTEXT
.set push
.set noat
.set noreorder
.set volatile
#ifdef __mips_hard_float
add a0, sp,STK_CTX_SIZE
mfc0 t0, CP0_STATUS
.set push
.set at
or t0, M_StatusCU1
.set noat
mtc0 t0, CP0_STATUS
lw t0 , 0x00(a0)
lwc1 $f0,(0x04 * 1)(a0)
lwc1 $f1,(0x04 * 2)(a0)
lwc1 $f2,(0x04 * 3)(a0)
lwc1 $f3,(0x04 * 4)(a0)
lwc1 $f4,(0x04 * 5)(a0)
lwc1 $f5,(0x04 * 6)(a0)
lwc1 $f6,(0x04 * 7)(a0)
lwc1 $f7,(0x04 * 8)(a0)
lwc1 $f8,(0x04 * 9)(a0)
lwc1 $f9,(0x04 * 10)(a0)
lwc1 $f10,(0x04 * 11)(a0)
lwc1 $f11,(0x04 * 12)(a0)
lwc1 $f12,(0x04 * 13)(a0)
lwc1 $f13,(0x04 * 14)(a0)
lwc1 $f14,(0x04 * 15)(a0)
lwc1 $f15,(0x04 * 16)(a0)
lwc1 $f16,(0x04 * 17)(a0)
lwc1 $f17,(0x04 * 18)(a0)
lwc1 $f18,(0x04 * 19)(a0)
lwc1 $f19,(0x04 * 20)(a0)
lwc1 $f20,(0x04 * 21)(a0)
lwc1 $f21,(0x04 * 22)(a0)
lwc1 $f22,(0x04 * 23)(a0)
lwc1 $f23,(0x04 * 24)(a0)
lwc1 $f24,(0x04 * 25)(a0)
lwc1 $f25,(0x04 * 26)(a0)
lwc1 $f26,(0x04 * 27)(a0)
lwc1 $f27,(0x04 * 28)(a0)
lwc1 $f28,(0x04 * 29)(a0)
lwc1 $f29,(0x04 * 30)(a0)
lwc1 $f30,(0x04 * 31)(a0)
lwc1 $f31,(0x04 * 32)(a0)
ctc1 t0, CP1_STATUS ;/* restore fpp status reg */
nop
#endif
/* ͨÓüĴæÆ÷ */
/* ZERO */
lw $1, ( 1 * 4)(sp)
/* V0 */
lw $3, ( 3 * 4)(sp)
lw $4, ( 4 * 4)(sp)
lw $5, ( 5 * 4)(sp)
lw $6, ( 6 * 4)(sp)
lw $7, ( 7 * 4)(sp)
lw $8, ( 8 * 4)(sp)
lw $9, ( 9 * 4)(sp)
lw $10, (10 * 4)(sp)
lw $11, (11 * 4)(sp)
lw $12, (12 * 4)(sp)
lw $13, (13 * 4)(sp)
lw $14, (14 * 4)(sp)
lw $15, (15 * 4)(sp)
lw $16, (16 * 4)(sp)
lw $17, (17 * 4)(sp)
lw $18, (18 * 4)(sp)
lw $19, (19 * 4)(sp)
lw $20, (20 * 4)(sp)
lw $21, (21 * 4)(sp)
lw $22, (22 * 4)(sp)
lw $23, (23 * 4)(sp)
lw $24, (24 * 4)(sp)
lw $25, (25 * 4)(sp)
lw $26, (26 * 4)(sp)
lw $27, (27 * 4)(sp)
lw $28, (28 * 4)(sp)
/* SP */
lw $30, (30 * 4)(sp)
lw $31, (31 * 4)(sp)
/* STATUS CAUSE EPC.... */
lw $2, STK_OFFSET_HI(sp)
mthi $2
lw $2, STK_OFFSET_LO(sp)
mtlo $2
lw $2, STK_OFFSET_SR(sp)
mtc0 $2, CP0_STATUS
lw $2, STK_OFFSET_BADVADDR(sp)
mtc0 $2, CP0_BADVADDR
lw $2, STK_OFFSET_CAUSE(sp)
mtc0 $2, CP0_CAUSE
lw $2, STK_OFFSET_EPC(sp)
MTC0 $2, CP0_EPC
//restore $2
lw $2, ( 2 * 4)(sp)
//restore sp
lw $29, (29 * 4)(sp)
eret
nop
.set pop
.endm
#endif
#endif /* _MIPS_CONTEXT_ASM_H_ */

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23
libcpu/mips/xburst/stack.h → bsp/x1000/cpu/common/mips_excpt.h
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@ -1,6 +1,7 @@
/*
* File : stack.h
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
* File : mips_excpt.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -18,11 +19,21 @@
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ7ÈÕ Urey the first version
*/
#ifndef __STACK_H__
#define __STACK_H__
#ifndef _MIPS_EXCPT_H_
#define _MIPS_EXCPT_H_
#define SYSTEM_STACK 0x80003fe8 /* the kernel system stack address */
#include "mips_regs.h"
#endif
#ifndef __ASSEMBLY__
typedef void (* exception_func_t)(mips_reg_ctx *regs);
//extern exception_func_t mips_exception_handlers[];
int rt_hw_exception_init(void);
exception_func_t rt_set_except_vector(int n, exception_func_t func);
void install_default_execpt_handle(void);
#endif /* __ASSEMBLY__ */
#endif /* _MIPS_EXCPT_H_ */

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118
bsp/x1000/cpu/common/mips_types.h Normal file
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/*
* File : mips_types.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2016Äê9ÔÂ7ÈÕ Urey the first version
*/
#ifndef _MIPS_TYPES_H_
#define _MIPS_TYPES_H_
#ifndef __ASSEMBLY__
typedef unsigned short umode_t;
/*
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
* header files exported to user space
*/
typedef __signed__ char __s8;
typedef unsigned char __u8;
typedef __signed__ short __s16;
typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
#if (_MIPS_SZLONG == 64)
typedef __signed__ long __s64;
typedef unsigned long __u64;
#else
#if defined(__GNUC__)
__extension__ typedef __signed__ long long __s64;
__extension__ typedef unsigned long long __u64;
#endif
#endif
/*
* These aren't exported outside the kernel to avoid name space clashes
*/
#define BITS_PER_LONG _MIPS_SZLONG
typedef __signed char s8;
typedef unsigned char u8;
typedef __signed short s16;
typedef unsigned short u16;
typedef __signed int s32;
typedef unsigned int u32;
#if (_MIPS_SZLONG == 64)
typedef __signed__ long s64;
typedef unsigned long u64;
#else
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
typedef __signed__ long long s64;
typedef unsigned long long u64;
#endif
#endif
#if (defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) \
|| defined(CONFIG_64BIT)
typedef u64 dma_addr_t;
typedef u64 phys_addr_t;
typedef u64 phys_size_t;
#else
typedef u32 dma_addr_t;
typedef u32 phys_addr_t;
typedef u32 phys_size_t;
#endif
typedef u64 dma64_addr_t;
/*
* Don't use phys_t. You've been warned.
*/
#ifdef CONFIG_64BIT_PHYS_ADDR
typedef unsigned long long phys_t;
#else
typedef unsigned long phys_t;
#endif
#endif /* __ASSEMBLY__ */
#endif /* _MIPS_TYPES_H_ */

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/*
* File : mipscfg.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2010, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-05-27 swkyer first version
*/
#ifndef __MIPSCFG_H__
#define __MIPSCFG_H__
typedef struct mips32_core_cfg
{
rt_uint16_t icache_line_size;
rt_uint16_t icache_lines_per_way;
rt_uint16_t icache_ways;
rt_uint16_t dcache_line_size;
rt_uint16_t dcache_lines_per_way;
rt_uint16_t dcache_ways;
rt_uint16_t max_tlb_entries; /* number of tlb entry */
} mips32_core_cfg_t;
extern mips32_core_cfg_t g_mips_core;
#endif /* end of __MIPSCFG_H__ */

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/*
* 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) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
* Copyright (C) 2000 Silicon Graphics, Inc.
* Modified for further R[236]000 support by Paul M. Antoine, 1996.
* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000, 07 MIPS Technologies, Inc.
* Copyright (C) 2003, 2004 Maciej W. Rozycki
*
* Change Logs:
* Date Author Notes
*
*/
#ifndef __MIPSREGS_H__
#define __MIPSREGS_H__
/*
* The following macros are especially useful for __asm__
* inline assembler.
*/
#ifndef __STR
#define __STR(x) #x
#endif
#ifndef STR
#define STR(x) __STR(x)
#endif
/*
* Configure language
*/
#ifdef __ASSEMBLY__
#define _ULCAST_
#else
#define _ULCAST_ (unsigned long)
#endif
/*
* Coprocessor 0 register names
*/
#define CP0_INDEX $0
#define CP0_RANDOM $1
#define CP0_ENTRYLO0 $2
#define CP0_ENTRYLO1 $3
#define CP0_CONF $3
#define CP0_CONTEXT $4
#define CP0_PAGEMASK $5
#define CP0_WIRED $6
#define CP0_INFO $7
#define CP0_BADVADDR $8
#define CP0_COUNT $9
#define CP0_ENTRYHI $10
#define CP0_COMPARE $11
#define CP0_STATUS $12
#define CP0_CAUSE $13
#define CP0_EPC $14
#define CP0_PRID $15
#define CP0_CONFIG $16
#define CP0_LLADDR $17
#define CP0_WATCHLO $18
#define CP0_WATCHHI $19
#define CP0_XCONTEXT $20
#define CP0_FRAMEMASK $21
#define CP0_DIAGNOSTIC $22
#define CP0_DEBUG $23
#define CP0_DEPC $24
#define CP0_PERFORMANCE $25
#define CP0_ECC $26
#define CP0_CACHEERR $27
#define CP0_TAGLO $28
#define CP0_TAGHI $29
#define CP0_ERROREPC $30
#define CP0_DESAVE $31
/*
* R4640/R4650 cp0 register names. These registers are listed
* here only for completeness; without MMU these CPUs are not useable
* by Linux. A future ELKS port might take make Linux run on them
* though ...
*/
#define CP0_IBASE $0
#define CP0_IBOUND $1
#define CP0_DBASE $2
#define CP0_DBOUND $3
#define CP0_CALG $17
#define CP0_IWATCH $18
#define CP0_DWATCH $19
/*
* Coprocessor 0 Set 1 register names
*/
#define CP0_S1_DERRADDR0 $26
#define CP0_S1_DERRADDR1 $27
#define CP0_S1_INTCONTROL $20
/*
* Coprocessor 0 Set 2 register names
*/
#define CP0_S2_SRSCTL $12 /* MIPSR2 */
/*
* Coprocessor 0 Set 3 register names
*/
#define CP0_S3_SRSMAP $12 /* MIPSR2 */
/*
* TX39 Series
*/
#define CP0_TX39_CACHE $7
/*
* Coprocessor 1 (FPU) register names
*/
#define CP1_REVISION $0
#define CP1_STATUS $31
/*
* FPU Status Register Values
*/
/*
* Status Register Values
*/
#define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */
#define FPU_CSR_COND 0x00800000 /* $fcc0 */
#define FPU_CSR_COND0 0x00800000 /* $fcc0 */
#define FPU_CSR_COND1 0x02000000 /* $fcc1 */
#define FPU_CSR_COND2 0x04000000 /* $fcc2 */
#define FPU_CSR_COND3 0x08000000 /* $fcc3 */
#define FPU_CSR_COND4 0x10000000 /* $fcc4 */
#define FPU_CSR_COND5 0x20000000 /* $fcc5 */
#define FPU_CSR_COND6 0x40000000 /* $fcc6 */
#define FPU_CSR_COND7 0x80000000 /* $fcc7 */
/* FS/FO/FN */
#define FPU_CSR_FS 0x01000000
#define FPU_CSR_FO 0x00400000
#define FPU_CSR_FN 0x00200000
/*
* Bits 18 - 20 of the FPU Status Register will be read as 0,
* and should be written as zero.
*/
#define FPU_CSR_RSVD 0x001c0000
/*
* X the exception cause indicator
* E the exception enable
* S the sticky/flag bit
*/
#define FPU_CSR_ALL_X 0x0003f000
#define FPU_CSR_UNI_X 0x00020000
#define FPU_CSR_INV_X 0x00010000
#define FPU_CSR_DIV_X 0x00008000
#define FPU_CSR_OVF_X 0x00004000
#define FPU_CSR_UDF_X 0x00002000
#define FPU_CSR_INE_X 0x00001000
#define FPU_CSR_ALL_E 0x00000f80
#define FPU_CSR_INV_E 0x00000800
#define FPU_CSR_DIV_E 0x00000400
#define FPU_CSR_OVF_E 0x00000200
#define FPU_CSR_UDF_E 0x00000100
#define FPU_CSR_INE_E 0x00000080
#define FPU_CSR_ALL_S 0x0000007c
#define FPU_CSR_INV_S 0x00000040
#define FPU_CSR_DIV_S 0x00000020
#define FPU_CSR_OVF_S 0x00000010
#define FPU_CSR_UDF_S 0x00000008
#define FPU_CSR_INE_S 0x00000004
/* Bits 0 and 1 of FPU Status Register specify the rounding mode */
#define FPU_CSR_RM 0x00000003
#define FPU_CSR_RN 0x0 /* nearest */
#define FPU_CSR_RZ 0x1 /* towards zero */
#define FPU_CSR_RU 0x2 /* towards +Infinity */
#define FPU_CSR_RD 0x3 /* towards -Infinity */
/*
* R4x00 interrupt enable / cause bits
*/
#define IE_SW0 (_ULCAST_(1) << 8)
#define IE_SW1 (_ULCAST_(1) << 9)
#define IE_IRQ0 (_ULCAST_(1) << 10)
#define IE_IRQ1 (_ULCAST_(1) << 11)
#define IE_IRQ2 (_ULCAST_(1) << 12)
#define IE_IRQ3 (_ULCAST_(1) << 13)
#define IE_IRQ4 (_ULCAST_(1) << 14)
#define IE_IRQ5 (_ULCAST_(1) << 15)
/*
* R4x00 interrupt cause bits
*/
#define C_SW0 (_ULCAST_(1) << 8)
#define C_SW1 (_ULCAST_(1) << 9)
#define C_IRQ0 (_ULCAST_(1) << 10)
#define C_IRQ1 (_ULCAST_(1) << 11)
#define C_IRQ2 (_ULCAST_(1) << 12)
#define C_IRQ3 (_ULCAST_(1) << 13)
#define C_IRQ4 (_ULCAST_(1) << 14)
#define C_IRQ5 (_ULCAST_(1) << 15)
/*
* Bitfields in the R4xx0 cp0 status register
*/
#define ST0_IE 0x00000001
#define ST0_EXL 0x00000002
#define ST0_ERL 0x00000004
#define ST0_KSU 0x00000018
# define KSU_USER 0x00000010
# define KSU_SUPERVISOR 0x00000008
# define KSU_KERNEL 0x00000000
#define ST0_UX 0x00000020
#define ST0_SX 0x00000040
#define ST0_KX 0x00000080
#define ST0_DE 0x00010000
#define ST0_CE 0x00020000
/*
* Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
* cacheops in userspace. This bit exists only on RM7000 and RM9000
* processors.
*/
#define ST0_CO 0x08000000
/*
* Bitfields in the R[23]000 cp0 status register.
*/
#define ST0_IEC 0x00000001
#define ST0_KUC 0x00000002
#define ST0_IEP 0x00000004
#define ST0_KUP 0x00000008
#define ST0_IEO 0x00000010
#define ST0_KUO 0x00000020
/* bits 6 & 7 are reserved on R[23]000 */
#define ST0_ISC 0x00010000
#define ST0_SWC 0x00020000
#define ST0_CM 0x00080000
/*
* Bits specific to the R4640/R4650
*/
#define ST0_UM (_ULCAST_(1) << 4)
#define ST0_IL (_ULCAST_(1) << 23)
#define ST0_DL (_ULCAST_(1) << 24)
/*
* Enable the MIPS DSP ASE
*/
#define ST0_MX 0x01000000
/*
* Bitfields in the TX39 family CP0 Configuration Register 3
*/
#define TX39_CONF_ICS_SHIFT 19
#define TX39_CONF_ICS_MASK 0x00380000
#define TX39_CONF_ICS_1KB 0x00000000
#define TX39_CONF_ICS_2KB 0x00080000
#define TX39_CONF_ICS_4KB 0x00100000
#define TX39_CONF_ICS_8KB 0x00180000
#define TX39_CONF_ICS_16KB 0x00200000
#define TX39_CONF_DCS_SHIFT 16
#define TX39_CONF_DCS_MASK 0x00070000
#define TX39_CONF_DCS_1KB 0x00000000
#define TX39_CONF_DCS_2KB 0x00010000
#define TX39_CONF_DCS_4KB 0x00020000
#define TX39_CONF_DCS_8KB 0x00030000
#define TX39_CONF_DCS_16KB 0x00040000
#define TX39_CONF_CWFON 0x00004000
#define TX39_CONF_WBON 0x00002000
#define TX39_CONF_RF_SHIFT 10
#define TX39_CONF_RF_MASK 0x00000c00
#define TX39_CONF_DOZE 0x00000200
#define TX39_CONF_HALT 0x00000100
#define TX39_CONF_LOCK 0x00000080
#define TX39_CONF_ICE 0x00000020
#define TX39_CONF_DCE 0x00000010
#define TX39_CONF_IRSIZE_SHIFT 2
#define TX39_CONF_IRSIZE_MASK 0x0000000c
#define TX39_CONF_DRSIZE_SHIFT 0
#define TX39_CONF_DRSIZE_MASK 0x00000003
/*
* Status register bits available in all MIPS CPUs.
*/
#define ST0_IM 0x0000ff00
#define STATUSB_IP0 8
#define STATUSF_IP0 (_ULCAST_(1) << 8)
#define STATUSB_IP1 9
#define STATUSF_IP1 (_ULCAST_(1) << 9)
#define STATUSB_IP2 10
#define STATUSF_IP2 (_ULCAST_(1) << 10)
#define STATUSB_IP3 11
#define STATUSF_IP3 (_ULCAST_(1) << 11)
#define STATUSB_IP4 12
#define STATUSF_IP4 (_ULCAST_(1) << 12)
#define STATUSB_IP5 13
#define STATUSF_IP5 (_ULCAST_(1) << 13)
#define STATUSB_IP6 14
#define STATUSF_IP6 (_ULCAST_(1) << 14)
#define STATUSB_IP7 15
#define STATUSF_IP7 (_ULCAST_(1) << 15)
#define STATUSB_IP8 0
#define STATUSF_IP8 (_ULCAST_(1) << 0)
#define STATUSB_IP9 1
#define STATUSF_IP9 (_ULCAST_(1) << 1)
#define STATUSB_IP10 2
#define STATUSF_IP10 (_ULCAST_(1) << 2)
#define STATUSB_IP11 3
#define STATUSF_IP11 (_ULCAST_(1) << 3)
#define STATUSB_IP12 4
#define STATUSF_IP12 (_ULCAST_(1) << 4)
#define STATUSB_IP13 5
#define STATUSF_IP13 (_ULCAST_(1) << 5)
#define STATUSB_IP14 6
#define STATUSF_IP14 (_ULCAST_(1) << 6)
#define STATUSB_IP15 7
#define STATUSF_IP15 (_ULCAST_(1) << 7)
#define ST0_CH 0x00040000
#define ST0_SR 0x00100000
#define ST0_TS 0x00200000
#define ST0_BEV 0x00400000
#define ST0_RE 0x02000000
#define ST0_FR 0x04000000
#define ST0_CU 0xf0000000
#define ST0_CU0 0x10000000
#define ST0_CU1 0x20000000
#define ST0_CU2 0x40000000
#define ST0_CU3 0x80000000
#define ST0_XX 0x80000000 /* MIPS IV naming */
/*
* Bitfields and bit numbers in the coprocessor 0 cause register.
*
* Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
*/
#define CAUSEB_EXCCODE 2
#define CAUSEF_EXCCODE (_ULCAST_(31) << 2)
#define CAUSEB_IP 8
#define CAUSEF_IP (_ULCAST_(255) << 8)
#define CAUSEB_IP0 8
#define CAUSEF_IP0 (_ULCAST_(1) << 8)
#define CAUSEB_IP1 9
#define CAUSEF_IP1 (_ULCAST_(1) << 9)
#define CAUSEB_IP2 10
#define CAUSEF_IP2 (_ULCAST_(1) << 10)
#define CAUSEB_IP3 11
#define CAUSEF_IP3 (_ULCAST_(1) << 11)
#define CAUSEB_IP4 12
#define CAUSEF_IP4 (_ULCAST_(1) << 12)
#define CAUSEB_IP5 13
#define CAUSEF_IP5 (_ULCAST_(1) << 13)
#define CAUSEB_IP6 14
#define CAUSEF_IP6 (_ULCAST_(1) << 14)
#define CAUSEB_IP7 15
#define CAUSEF_IP7 (_ULCAST_(1) << 15)
#define CAUSEB_IV 23
#define CAUSEF_IV (_ULCAST_(1) << 23)
#define CAUSEB_CE 28
#define CAUSEF_CE (_ULCAST_(3) << 28)
#define CAUSEB_BD 31
#define CAUSEF_BD (_ULCAST_(1) << 31)
/*
* Bits in the coprocessor 0 config register.
*/
/* Generic bits. */
#define CONF_CM_CACHABLE_NO_WA 0
#define CONF_CM_CACHABLE_WA 1
#define CONF_CM_UNCACHED 2
#define CONF_CM_CACHABLE_NONCOHERENT 3
#define CONF_CM_CACHABLE_CE 4
#define CONF_CM_CACHABLE_COW 5
#define CONF_CM_CACHABLE_CUW 6
#define CONF_CM_CACHABLE_ACCELERATED 7
#define CONF_CM_CMASK 7
#define CONF_BE (_ULCAST_(1) << 15)
/* Bits common to various processors. */
#define CONF_CU (_ULCAST_(1) << 3)
#define CONF_DB (_ULCAST_(1) << 4)
#define CONF_IB (_ULCAST_(1) << 5)
#define CONF_DC (_ULCAST_(7) << 6)
#define CONF_IC (_ULCAST_(7) << 9)
#define CONF_EB (_ULCAST_(1) << 13)
#define CONF_EM (_ULCAST_(1) << 14)
#define CONF_SM (_ULCAST_(1) << 16)
#define CONF_SC (_ULCAST_(1) << 17)
#define CONF_EW (_ULCAST_(3) << 18)
#define CONF_EP (_ULCAST_(15)<< 24)
#define CONF_EC (_ULCAST_(7) << 28)
#define CONF_CM (_ULCAST_(1) << 31)
/* Bits specific to the R4xx0. */
#define R4K_CONF_SW (_ULCAST_(1) << 20)
#define R4K_CONF_SS (_ULCAST_(1) << 21)
#define R4K_CONF_SB (_ULCAST_(3) << 22)
/* Bits specific to the R5000. */
#define R5K_CONF_SE (_ULCAST_(1) << 12)
#define R5K_CONF_SS (_ULCAST_(3) << 20)
/* Bits specific to the RM7000. */
#define RM7K_CONF_SE (_ULCAST_(1) << 3)
#define RM7K_CONF_TE (_ULCAST_(1) << 12)
#define RM7K_CONF_CLK (_ULCAST_(1) << 16)
#define RM7K_CONF_TC (_ULCAST_(1) << 17)
#define RM7K_CONF_SI (_ULCAST_(3) << 20)
#define RM7K_CONF_SC (_ULCAST_(1) << 31)
/* Bits specific to the R10000. */
#define R10K_CONF_DN (_ULCAST_(3) << 3)
#define R10K_CONF_CT (_ULCAST_(1) << 5)
#define R10K_CONF_PE (_ULCAST_(1) << 6)
#define R10K_CONF_PM (_ULCAST_(3) << 7)
#define R10K_CONF_EC (_ULCAST_(15)<< 9)
#define R10K_CONF_SB (_ULCAST_(1) << 13)
#define R10K_CONF_SK (_ULCAST_(1) << 14)
#define R10K_CONF_SS (_ULCAST_(7) << 16)
#define R10K_CONF_SC (_ULCAST_(7) << 19)
#define R10K_CONF_DC (_ULCAST_(7) << 26)
#define R10K_CONF_IC (_ULCAST_(7) << 29)
/* Bits specific to the VR41xx. */
#define VR41_CONF_CS (_ULCAST_(1) << 12)
#define VR41_CONF_M16 (_ULCAST_(1) << 20)
#define VR41_CONF_AD (_ULCAST_(1) << 23)
/* Bits specific to the R30xx. */
#define R30XX_CONF_FDM (_ULCAST_(1) << 19)
#define R30XX_CONF_REV (_ULCAST_(1) << 22)
#define R30XX_CONF_AC (_ULCAST_(1) << 23)
#define R30XX_CONF_RF (_ULCAST_(1) << 24)
#define R30XX_CONF_HALT (_ULCAST_(1) << 25)
#define R30XX_CONF_FPINT (_ULCAST_(7) << 26)
#define R30XX_CONF_DBR (_ULCAST_(1) << 29)
#define R30XX_CONF_SB (_ULCAST_(1) << 30)
#define R30XX_CONF_LOCK (_ULCAST_(1) << 31)
/* Bits specific to the TX49. */
#define TX49_CONF_DC (_ULCAST_(1) << 16)
#define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */
#define TX49_CONF_HALT (_ULCAST_(1) << 18)
#define TX49_CONF_CWFON (_ULCAST_(1) << 27)
/* Bits specific to the MIPS32/64 PRA. */
#define MIPS_CONF_MT (_ULCAST_(7) << 7)
#define MIPS_CONF_AR (_ULCAST_(7) << 10)
#define MIPS_CONF_AT (_ULCAST_(3) << 13)
#define MIPS_CONF_M (_ULCAST_(1) << 31)
/*
* Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
*/
#define MIPS_CONF1_FP (_ULCAST_(1) << 0)
#define MIPS_CONF1_EP (_ULCAST_(1) << 1)
#define MIPS_CONF1_CA (_ULCAST_(1) << 2)
#define MIPS_CONF1_WR (_ULCAST_(1) << 3)
#define MIPS_CONF1_PC (_ULCAST_(1) << 4)
#define MIPS_CONF1_MD (_ULCAST_(1) << 5)
#define MIPS_CONF1_C2 (_ULCAST_(1) << 6)
#define MIPS_CONF1_DA (_ULCAST_(7) << 7)
#define MIPS_CONF1_DL (_ULCAST_(7) << 10)
#define MIPS_CONF1_DS (_ULCAST_(7) << 13)
#define MIPS_CONF1_IA (_ULCAST_(7) << 16)
#define MIPS_CONF1_IL (_ULCAST_(7) << 19)
#define MIPS_CONF1_IS (_ULCAST_(7) << 22)
#define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25)
#define MIPS_CONF2_SA (_ULCAST_(15)<< 0)
#define MIPS_CONF2_SL (_ULCAST_(15)<< 4)
#define MIPS_CONF2_SS (_ULCAST_(15)<< 8)
#define MIPS_CONF2_SU (_ULCAST_(15)<< 12)
#define MIPS_CONF2_TA (_ULCAST_(15)<< 16)
#define MIPS_CONF2_TL (_ULCAST_(15)<< 20)
#define MIPS_CONF2_TS (_ULCAST_(15)<< 24)
#define MIPS_CONF2_TU (_ULCAST_(7) << 28)
#define MIPS_CONF3_TL (_ULCAST_(1) << 0)
#define MIPS_CONF3_SM (_ULCAST_(1) << 1)
#define MIPS_CONF3_MT (_ULCAST_(1) << 2)
#define MIPS_CONF3_SP (_ULCAST_(1) << 4)
#define MIPS_CONF3_VINT (_ULCAST_(1) << 5)
#define MIPS_CONF3_VEIC (_ULCAST_(1) << 6)
#define MIPS_CONF3_LPA (_ULCAST_(1) << 7)
#define MIPS_CONF3_DSP (_ULCAST_(1) << 10)
/*
* Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
*/
#define MIPS_FPIR_S (_ULCAST_(1) << 16)
#define MIPS_FPIR_D (_ULCAST_(1) << 17)
#define MIPS_FPIR_PS (_ULCAST_(1) << 18)
#define MIPS_FPIR_3D (_ULCAST_(1) << 19)
#define MIPS_FPIR_W (_ULCAST_(1) << 20)
#define MIPS_FPIR_L (_ULCAST_(1) << 21)
#define MIPS_FPIR_F64 (_ULCAST_(1) << 22)
/*
* R10000 performance counter definitions.
*
* FIXME: The R10000 performance counter opens a nice way to implement CPU
* time accounting with a precission of one cycle. I don't have
* R10000 silicon but just a manual, so ...
*/
/*
* Events counted by counter #0
*/
#define CE0_CYCLES 0
#define CE0_INSN_ISSUED 1
#define CE0_LPSC_ISSUED 2
#define CE0_S_ISSUED 3
#define CE0_SC_ISSUED 4
#define CE0_SC_FAILED 5
#define CE0_BRANCH_DECODED 6
#define CE0_QW_WB_SECONDARY 7
#define CE0_CORRECTED_ECC_ERRORS 8
#define CE0_ICACHE_MISSES 9
#define CE0_SCACHE_I_MISSES 10
#define CE0_SCACHE_I_WAY_MISSPREDICTED 11
#define CE0_EXT_INTERVENTIONS_REQ 12
#define CE0_EXT_INVALIDATE_REQ 13
#define CE0_VIRTUAL_COHERENCY_COND 14
#define CE0_INSN_GRADUATED 15
/*
* Events counted by counter #1
*/
#define CE1_CYCLES 0
#define CE1_INSN_GRADUATED 1
#define CE1_LPSC_GRADUATED 2
#define CE1_S_GRADUATED 3
#define CE1_SC_GRADUATED 4
#define CE1_FP_INSN_GRADUATED 5
#define CE1_QW_WB_PRIMARY 6
#define CE1_TLB_REFILL 7
#define CE1_BRANCH_MISSPREDICTED 8
#define CE1_DCACHE_MISS 9
#define CE1_SCACHE_D_MISSES 10
#define CE1_SCACHE_D_WAY_MISSPREDICTED 11
#define CE1_EXT_INTERVENTION_HITS 12
#define CE1_EXT_INVALIDATE_REQ 13
#define CE1_SP_HINT_TO_CEXCL_SC_BLOCKS 14
#define CE1_SP_HINT_TO_SHARED_SC_BLOCKS 15
/*
* These flags define in which privilege mode the counters count events
*/
#define CEB_USER 8 /* Count events in user mode, EXL = ERL = 0 */
#define CEB_SUPERVISOR 4 /* Count events in supvervisor mode EXL = ERL = 0 */
#define CEB_KERNEL 2 /* Count events in kernel mode EXL = ERL = 0 */
#define CEB_EXL 1 /* Count events with EXL = 1, ERL = 0 */
#ifndef __ASSEMBLY__
/*
* Macros to access the system control coprocessor
*/
#define __read_32bit_c0_register(source, sel) \
({ int __res; \
if (sel == 0) \
__asm__ __volatile__( \
"mfc0\t%0, " #source "\n\t" \
: "=r" (__res)); \
else \
__asm__ __volatile__( \
".set\tmips32\n\t" \
"mfc0\t%0, " #source ", " #sel "\n\t" \
".set\tmips0\n\t" \
: "=r" (__res)); \
__res; \
})
#define __write_32bit_c0_register(register, sel, value) \
do { \
if (sel == 0) \
__asm__ __volatile__( \
"mtc0\t%z0, " #register "\n\t" \
: : "Jr" ((unsigned int)(value))); \
else \
__asm__ __volatile__( \
".set\tmips32\n\t" \
"mtc0\t%z0, " #register ", " #sel "\n\t" \
".set\tmips0" \
: : "Jr" ((unsigned int)(value))); \
} while (0)
#define read_c0_index() __read_32bit_c0_register($0, 0)
#define write_c0_index(val) __write_32bit_c0_register($0, 0, val)
#define read_c0_random() __read_32bit_c0_register($1, 0)
#define write_c0_random(val) __write_32bit_c0_register($1, 0, val)
#define read_c0_entrylo0() __read_32bit_c0_register($2, 0)
#define write_c0_entrylo0(val) __write_32bit_c0_register($2, 0, val)
#define read_c0_entrylo1() __read_32bit_c0_register($3, 0)
#define write_c0_entrylo1(val) __write_32bit_c0_register($3, 0, val)
#define read_c0_conf() __read_32bit_c0_register($3, 0)
#define write_c0_conf(val) __write_32bit_c0_register($3, 0, val)
#define read_c0_context() __read_32bit_c0_register($4, 0)
#define write_c0_context(val) __write_32bit_c0_register($4, 0, val)
#define read_c0_userlocal() __read_32bit_c0_register($4, 2)
#define write_c0_userlocal(val) __write_32bit_c0_register($4, 2, val)
#define read_c0_pagemask() __read_32bit_c0_register($5, 0)
#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
#define read_c0_wired() __read_32bit_c0_register($6, 0)
#define write_c0_wired(val) __write_32bit_c0_register($6, 0, val)
#define read_c0_info() __read_32bit_c0_register($7, 0)
#define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */
#define write_c0_cache(val) __write_32bit_c0_register($7, 0, val)
#define read_c0_badvaddr() __read_32bit_c0_register($8, 0)
#define write_c0_badvaddr(val) __write_32bit_c0_register($8, 0, val)
#define read_c0_count() __read_32bit_c0_register($9, 0)
#define write_c0_count(val) __write_32bit_c0_register($9, 0, val)
#define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */
#define write_c0_count2(val) __write_32bit_c0_register($9, 6, val)
#define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */
#define write_c0_count3(val) __write_32bit_c0_register($9, 7, val)
#define read_c0_entryhi() __read_32bit_c0_register($10, 0)
#define write_c0_entryhi(val) __write_32bit_c0_register($10, 0, val)
#define read_c0_compare() __read_32bit_c0_register($11, 0)
#define write_c0_compare(val) __write_32bit_c0_register($11, 0, val)
#define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */
#define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val)
#define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */
#define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val)
#define read_c0_status() __read_32bit_c0_register($12, 0)
#define write_c0_status(val) __write_32bit_c0_register($12, 0, val)
#define read_c0_cause() __read_32bit_c0_register($13, 0)
#define write_c0_cause(val) __write_32bit_c0_register($13, 0, val)
#define read_c0_epc() __read_32bit_c0_register($14, 0)
#define write_c0_epc(val) __write_32bit_c0_register($14, 0, val)
#define read_c0_prid() __read_32bit_c0_register($15, 0)
#define read_c0_ebase() __read_32bit_c0_register($15, 1)
#define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val)
#define read_c0_config() __read_32bit_c0_register($16, 0)
#define read_c0_config1() __read_32bit_c0_register($16, 1)
#define read_c0_config2() __read_32bit_c0_register($16, 2)
#define read_c0_config3() __read_32bit_c0_register($16, 3)
#define write_c0_config(val) __write_32bit_c0_register($16, 0, val)
#define write_c0_config1(val) __write_32bit_c0_register($16, 1, val)
#define write_c0_config2(val) __write_32bit_c0_register($16, 2, val)
#define write_c0_config3(val) __write_32bit_c0_register($16, 3, val)
/*
* Macros to access the floating point coprocessor control registers
*/
#define read_32bit_cp1_register(source) \
({ int __res; \
__asm__ __volatile__( \
".set\tpush\n\t" \
".set\treorder\n\t" \
/* gas fails to assemble cfc1 for some archs (octeon).*/ \
".set\tmips1\n\t" \
"cfc1\t%0,"STR(source)"\n\t" \
".set\tpop" \
: "=r" (__res)); \
__res;})
#define write_32bit_cp1_register(register, value) \
do { \
__asm__ __volatile__( \
"ctc1\t%z0, "STR(register)"\n\t" \
: : "Jr" ((unsigned int)(value))); \
} while (0)
#define read_c1_status() read_32bit_cp1_register(CP1_STATUS)
#define read_c1_revision() read_32bit_cp1_register(CP1_REVISION);
#define write_c1_status(val) write_32bit_cp1_register(CP1_STATUS, val)
#endif /* end of __ASSEMBLY__ */
#endif /* end of __MIPSREGS_H__ */

228
bsp/x1000/cpu/common/stackframe.h Normal file
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@ -0,0 +1,228 @@
/*
* 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) 1994, 95, 96, 99, 2001 Ralf Baechle
* Copyright (C) 1994, 1995, 1996 Paul M. Antoine.
* Copyright (C) 1999 Silicon Graphics, Inc.
* Copyright (C) 2007 Maciej W. Rozycki
*/
#ifndef __STACKFRAME_H__
#define __STACKFRAME_H__
#include "asm.h"
#include "mipsregs.h"
/*
* Stack layout for the INT exception handler
* Derived from the stack layout described in asm-mips/stackframe.h
*
* The first PTRSIZE*6 bytes are argument save space for C subroutines.
*/
//#define PT_R0 (PTRSIZE*6) /* 0 */
#define PT_R0 (0) /* 0 */
#define PT_R1 ((PT_R0) + LONGSIZE) /* 1 */
#define PT_R2 ((PT_R1) + LONGSIZE) /* 2 */
#define PT_R3 ((PT_R2) + LONGSIZE) /* 3 */
#define PT_R4 ((PT_R3) + LONGSIZE) /* 4 */
#define PT_R5 ((PT_R4) + LONGSIZE) /* 5 */
#define PT_R6 ((PT_R5) + LONGSIZE) /* 6 */
#define PT_R7 ((PT_R6) + LONGSIZE) /* 7 */
#define PT_R8 ((PT_R7) + LONGSIZE) /* 8 */
#define PT_R9 ((PT_R8) + LONGSIZE) /* 9 */
#define PT_R10 ((PT_R9) + LONGSIZE) /* 10 */
#define PT_R11 ((PT_R10) + LONGSIZE) /* 11 */
#define PT_R12 ((PT_R11) + LONGSIZE) /* 12 */
#define PT_R13 ((PT_R12) + LONGSIZE) /* 13 */
#define PT_R14 ((PT_R13) + LONGSIZE) /* 14 */
#define PT_R15 ((PT_R14) + LONGSIZE) /* 15 */
#define PT_R16 ((PT_R15) + LONGSIZE) /* 16 */
#define PT_R17 ((PT_R16) + LONGSIZE) /* 17 */
#define PT_R18 ((PT_R17) + LONGSIZE) /* 18 */
#define PT_R19 ((PT_R18) + LONGSIZE) /* 19 */
#define PT_R20 ((PT_R19) + LONGSIZE) /* 20 */
#define PT_R21 ((PT_R20) + LONGSIZE) /* 21 */
#define PT_R22 ((PT_R21) + LONGSIZE) /* 22 */
#define PT_R23 ((PT_R22) + LONGSIZE) /* 23 */
#define PT_R24 ((PT_R23) + LONGSIZE) /* 24 */
#define PT_R25 ((PT_R24) + LONGSIZE) /* 25 */
#define PT_R26 ((PT_R25) + LONGSIZE) /* 26 */
#define PT_R27 ((PT_R26) + LONGSIZE) /* 27 */
#define PT_R28 ((PT_R27) + LONGSIZE) /* 28 */
#define PT_R29 ((PT_R28) + LONGSIZE) /* 29 */
#define PT_R30 ((PT_R29) + LONGSIZE) /* 30 */
#define PT_R31 ((PT_R30) + LONGSIZE) /* 31 */
/*
* Saved special registers
*/
#define PT_STATUS ((PT_R31) + LONGSIZE) /* 32 */
#define PT_HI ((PT_STATUS) + LONGSIZE) /* 33 */
#define PT_LO ((PT_HI) + LONGSIZE) /* 34 */
#define PT_BADVADDR ((PT_LO) + LONGSIZE) /* 35 */
#define PT_CAUSE ((PT_BADVADDR) + LONGSIZE) /* 36 */
#define PT_EPC ((PT_CAUSE) + LONGSIZE) /* 37 */
#define PT_SIZE ((((PT_EPC) + LONGSIZE) + (PTRSIZE-1)) & ~(PTRSIZE-1))
.macro SAVE_AT
.set push
.set noat
LONG_S $1, PT_R1(sp)
.set pop
.endm
.macro SAVE_TEMP
mfhi v1
LONG_S $8, PT_R8(sp)
LONG_S $9, PT_R9(sp)
LONG_S v1, PT_HI(sp)
mflo v1
LONG_S $10, PT_R10(sp)
LONG_S $11, PT_R11(sp)
LONG_S v1, PT_LO(sp)
LONG_S $12, PT_R12(sp)
LONG_S $13, PT_R13(sp)
LONG_S $14, PT_R14(sp)
LONG_S $15, PT_R15(sp)
LONG_S $24, PT_R24(sp)
.endm
.macro SAVE_STATIC
LONG_S $16, PT_R16(sp)
LONG_S $17, PT_R17(sp)
LONG_S $18, PT_R18(sp)
LONG_S $19, PT_R19(sp)
LONG_S $20, PT_R20(sp)
LONG_S $21, PT_R21(sp)
LONG_S $22, PT_R22(sp)
LONG_S $23, PT_R23(sp)
LONG_S $30, PT_R30(sp)
.endm
.macro get_saved_sp
nop
.endm
.macro SAVE_SOME
.set push
.set noat
.set reorder
move k1, sp
8: move k0, sp
PTR_SUBU sp, k1, PT_SIZE
LONG_S k0, PT_R29(sp)
LONG_S $3, PT_R3(sp)
LONG_S $0, PT_R0(sp)
mfc0 v1, CP0_STATUS
LONG_S $2, PT_R2(sp)
LONG_S v1, PT_STATUS(sp)
LONG_S $4, PT_R4(sp)
mfc0 v1, CP0_CAUSE
LONG_S $5, PT_R5(sp)
LONG_S v1, PT_CAUSE(sp)
LONG_S $6, PT_R6(sp)
MFC0 v1, CP0_EPC
LONG_S $7, PT_R7(sp)
LONG_S v1, PT_EPC(sp)
LONG_S $25, PT_R25(sp)
LONG_S $28, PT_R28(sp)
LONG_S $31, PT_R31(sp)
.set pop
.endm
.macro SAVE_ALL
SAVE_SOME
SAVE_AT
SAVE_TEMP
SAVE_STATIC
.endm
.macro RESTORE_AT
.set push
.set noat
LONG_L $1, PT_R1(sp)
.set pop
.endm
.macro RESTORE_TEMP
LONG_L $24, PT_LO(sp)
LONG_L $8, PT_R8(sp)
LONG_L $9, PT_R9(sp)
mtlo $24
LONG_L $24, PT_HI(sp)
LONG_L $10, PT_R10(sp)
LONG_L $11, PT_R11(sp)
mthi $24
LONG_L $12, PT_R12(sp)
LONG_L $13, PT_R13(sp)
LONG_L $14, PT_R14(sp)
LONG_L $15, PT_R15(sp)
LONG_L $24, PT_R24(sp)
.endm
.macro RESTORE_STATIC
LONG_L $16, PT_R16(sp)
LONG_L $17, PT_R17(sp)
LONG_L $18, PT_R18(sp)
LONG_L $19, PT_R19(sp)
LONG_L $20, PT_R20(sp)
LONG_L $21, PT_R21(sp)
LONG_L $22, PT_R22(sp)
LONG_L $23, PT_R23(sp)
LONG_L $30, PT_R30(sp)
.endm
.macro RESTORE_SOME
.set push
.set reorder
.set noat
LONG_L v0, PT_STATUS(sp)
mtc0 v0, CP0_STATUS
LONG_L v1, PT_EPC(sp)
MTC0 v1, CP0_EPC
LONG_L $31, PT_R31(sp)
LONG_L $28, PT_R28(sp)
LONG_L $25, PT_R25(sp)
LONG_L $7, PT_R7(sp)
LONG_L $6, PT_R6(sp)
LONG_L $5, PT_R5(sp)
LONG_L $4, PT_R4(sp)
LONG_L $3, PT_R3(sp)
LONG_L $2, PT_R2(sp)
.set pop
.endm
.macro RESTORE_SP_AND_RET
LONG_L sp, PT_R29(sp)
.set mips3
eret
.set mips0
.endm
.macro RESTORE_SP
LONG_L sp, PT_R29(sp)
.endm
.macro RESTORE_ALL
RESTORE_TEMP
RESTORE_STATIC
RESTORE_AT
RESTORE_SOME
RESTORE_SP
.endm
.macro RESTORE_ALL_AND_RET
RESTORE_TEMP
RESTORE_STATIC
RESTORE_AT
RESTORE_SOME
RESTORE_SP_AND_RET
.endm
#endif /* end of __STACKFRAME_H__ */

14
bsp/x1000/cpu/x1000/SConscript Normal file
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@ -0,0 +1,14 @@
# RT-Thread building script for component
from building import *
Import('rtconfig')
cwd = GetCurrentDir()
src = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
CPPPATH = [cwd]
ASFLAGS = ''
group = DefineGroup('cpu', src, depend = [''], CPPPATH = CPPPATH, ASFLAGS = ASFLAGS)
Return('group')

0
libcpu/mips/x1000/cache.c → bsp/x1000/cpu/x1000/cache.c
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0
libcpu/mips/x1000/cache.h → bsp/x1000/cpu/x1000/cache.h
View File

0
libcpu/mips/x1000/cpu.c → bsp/x1000/cpu/x1000/cpu.c
View File

0
libcpu/mips/x1000/interrupt.c → bsp/x1000/cpu/x1000/interrupt.c
View File

0
libcpu/mips/x1000/mips_backtrace.c → bsp/x1000/cpu/x1000/mips_backtrace.c
View File

0
libcpu/mips/x1000/mips_cache_gcc.S → bsp/x1000/cpu/x1000/mips_cache_gcc.S
View File

0
libcpu/mips/x1000/mips_context_gcc.S → bsp/x1000/cpu/x1000/mips_context_gcc.S
View File

0
libcpu/mips/x1000/mips_excpt.c → bsp/x1000/cpu/x1000/mips_excpt.c
View File

0
libcpu/mips/x1000/mips_excpt_gcc.S → bsp/x1000/cpu/x1000/mips_excpt_gcc.S
View File

0
libcpu/mips/x1000/mips_fp_gcc.S → bsp/x1000/cpu/x1000/mips_fp_gcc.S
View File

0
libcpu/mips/x1000/stack.c → bsp/x1000/cpu/x1000/stack.c
View File

0
libcpu/mips/x1000/startup_gcc.S → bsp/x1000/cpu/x1000/startup_gcc.S
View File

0
libcpu/mips/x1000/x1000.h → bsp/x1000/cpu/x1000/x1000.h
View File

0
libcpu/mips/x1000/x1000_aic.h → bsp/x1000/cpu/x1000/x1000_aic.h
View File

0
libcpu/mips/x1000/x1000_cpm.h → bsp/x1000/cpu/x1000/x1000_cpm.h
View File

0
libcpu/mips/x1000/x1000_intc.h → bsp/x1000/cpu/x1000/x1000_intc.h
View File

0
libcpu/mips/x1000/x1000_otg_dwc.h → bsp/x1000/cpu/x1000/x1000_otg_dwc.h
View File

0
libcpu/mips/x1000/x1000_slcdc.h → bsp/x1000/cpu/x1000/x1000_slcdc.h
View File

2
bsp/x1000/rtconfig.py
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@ -10,7 +10,7 @@ if os.getenv('RTT_CC'):
if CROSS_TOOL == 'gcc':
PLATFORM = 'gcc'
EXEC_PATH = r'E:\work\env\tools\gnu_gcc\mips_gcc\mips-2016.05\bin'
EXEC_PATH = r'/opt/mips-2016.05/bin/'
else:
print('Please make sure your toolchains is GNU GCC!')
exit(0)

11
libcpu/mips/xburst/SConscript
View File

@ -1,11 +0,0 @@
# RT-Thread building script for component
from building import *
cwd = GetCurrentDir()
src = Glob('*.c') + Glob('*.S')
CPPPATH = [cwd]
group = DefineGroup('CPU', src, depend = [''], CPPPATH = CPPPATH)
Return('group')

118
libcpu/mips/xburst/cache.c
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@ -1,118 +0,0 @@
/*
* File : cache.c
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
#include "../xburst/cache.h"
#include <board.h>
#define CACHE_SIZE 16*1024
#define CACHE_LINE_SIZE 32
#define KSEG0 0x80000000
#define K0_TO_K1() \
do { \
unsigned long __k0_addr; \
\
__asm__ __volatile__( \
"la %0, 1f\n\t" \
"or %0, %0, %1\n\t" \
"jr %0\n\t" \
"nop\n\t" \
"1: nop\n" \
: "=&r"(__k0_addr) \
: "r" (0x20000000) ); \
} while(0)
#define K1_TO_K0() \
do { \
unsigned long __k0_addr; \
__asm__ __volatile__( \
"nop;nop;nop;nop;nop;nop;nop\n\t" \
"la %0, 1f\n\t" \
"jr %0\n\t" \
"nop\n\t" \
"1: nop\n" \
: "=&r" (__k0_addr)); \
} while (0)
#define INVALIDATE_BTB() \
do { \
unsigned long tmp; \
__asm__ __volatile__( \
".set mips32\n\t" \
"mfc0 %0, $16, 7\n\t" \
"nop\n\t" \
"ori %0, 2\n\t" \
"mtc0 %0, $16, 7\n\t" \
"nop\n\t" \
".set mips2\n\t" \
: "=&r" (tmp)); \
} while (0)
#define SYNC_WB() __asm__ __volatile__ ("sync")
#define cache_op(op,addr) \
__asm__ __volatile__( \
" .set noreorder \n" \
" .set mips32\n\t \n" \
" cache %0, %1 \n" \
" .set mips0 \n" \
" .set reorder" \
: \
: "i" (op), "m" (*(unsigned char *)(addr)))
void __icache_invalidate_all(void)
{
unsigned int i;
K0_TO_K1();
asm volatile (".set noreorder\n"
".set mips32\n\t"
"mtc0\t$0,$28\n\t"
"mtc0\t$0,$29\n"
".set mips0\n"
".set reorder\n");
for (i=KSEG0;i<KSEG0+CACHE_SIZE;i+=CACHE_LINE_SIZE)
cache_op(Index_Store_Tag_I, i);
K1_TO_K0();
INVALIDATE_BTB();
}
void __dcache_writeback_all(void)
{
unsigned int i;
for (i=KSEG0;i<KSEG0+CACHE_SIZE;i+=CACHE_LINE_SIZE)
cache_op(Index_Writeback_Inv_D, i);
SYNC_WB();
}
void rt_hw_cache_init(void)
{
__dcache_writeback_all();
__icache_invalidate_all();
}

62
libcpu/mips/xburst/cache.h
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@ -1,62 +0,0 @@
/*
* File : cache.h
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
#ifndef __CACHE_H__
#define __CACHE_H__
/*
* Cache Operations
*/
#define Index_Invalidate_I 0x00
#define Index_Writeback_Inv_D 0x01
#define Index_Invalidate_SI 0x02
#define Index_Writeback_Inv_SD 0x03
#define Index_Load_Tag_I 0x04
#define Index_Load_Tag_D 0x05
#define Index_Load_Tag_SI 0x06
#define Index_Load_Tag_SD 0x07
#define Index_Store_Tag_I 0x08
#define Index_Store_Tag_D 0x09
#define Index_Store_Tag_SI 0x0A
#define Index_Store_Tag_SD 0x0B
#define Create_Dirty_Excl_D 0x0d
#define Create_Dirty_Excl_SD 0x0f
#define Hit_Invalidate_I 0x10
#define Hit_Invalidate_D 0x11
#define Hit_Invalidate_SI 0x12
#define Hit_Invalidate_SD 0x13
#define Fill 0x14
#define Hit_Writeback_Inv_D 0x15
/* 0x16 is unused */
#define Hit_Writeback_Inv_SD 0x17
#define Hit_Writeback_I 0x18
#define Hit_Writeback_D 0x19
/* 0x1a is unused */
#define Hit_Writeback_SD 0x1b
/* 0x1c is unused */
/* 0x1e is unused */
#define Hit_Set_Virtual_SI 0x1e
#define Hit_Set_Virtual_SD 0x1f
void rt_hw_cache_init(void);
#endif

51
libcpu/mips/xburst/cache_gcc.S
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@ -1,51 +0,0 @@
/*
* Copyright (c) 2006-2019, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2010-05-17 swkyer first version
* 2019-07-19 Zhou Yanjie clean up code
*/
#ifndef __ASSEMBLY__
#define __ASSEMBLY__
#endif
#include "../common/mips_def.h"
#include "../common/mipsregs.h"
#include "../common/stackframe.h"
.text
.set noreorder
.globl cache_init
.ent cache_init
cache_init:
.set noreorder
mtc0 zero, CP0_TAGLO
move t0, a0 // cache total size
move t1, a1 // cache line size
li t2, 0x80000000
addu t3, t0, t2
_cache_init_loop:
cache 8, 0(t2) // icache_index_store_tag
cache 9, 0(t2) // dcache_index_store_tag
addu t2, t1
bne t2, t3, _cache_init_loop
nop
mfc0 t0, CP0_CONFIG
li t1, 0x7
not t1
and t0, t0, t1
or t0, 0x3 // cacheable, noncoherent, write-back, write allocate
mtc0 t0, CP0_CONFIG
jr ra
nop
.set reorder
.end cache_init

155
libcpu/mips/xburst/context_gcc.S
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@ -1,155 +0,0 @@
/*
* Copyright (c) 2006-2019, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2010-05-17 swkyer first version
* 2010-09-11 bernard port to JZ4755
* 2019-07-19 Zhou Yanjie clean up code
*/
#ifndef __ASSEMBLY__
#define __ASSEMBLY__
#endif
#include "../common/mips_def.h"
#include "../common/stackframe.h"
#include "stack.h"
.section ".text", "ax"
.set noreorder
/*
* rt_base_t rt_hw_interrupt_disable()
*/
.globl rt_hw_interrupt_disable
rt_hw_interrupt_disable:
mfc0 v0, CP0_STATUS
and v1, v0, 0xfffffffe
mtc0 v1, CP0_STATUS
jr ra
nop
/*
* void rt_hw_interrupt_enable(rt_base_t level)
*/
.globl rt_hw_interrupt_enable
rt_hw_interrupt_enable:
mtc0 a0, CP0_STATUS
jr ra
nop
/*
* void rt_hw_context_switch(rt_uint32 from, rt_uint32 to)
* a0 --> from
* a1 --> to
*/
.globl rt_hw_context_switch
rt_hw_context_switch:
mtc0 ra, CP0_EPC
SAVE_ALL
sw sp, 0(a0) /* store sp in preempted tasks TCB */
lw sp, 0(a1) /* get new task stack pointer */
RESTORE_ALL_AND_RET
/*
* void rt_hw_context_switch_to(rt_uint32 to)/*
* a0 --> to
*/
.globl rt_hw_context_switch_to
rt_hw_context_switch_to:
lw sp, 0(a0) /* get new task stack pointer */
RESTORE_ALL_AND_RET
/*
* void rt_hw_context_switch_interrupt(rt_uint32 from, rt_uint32 to)/*
*/
.globl rt_thread_switch_interrupt_flag
.globl rt_interrupt_from_thread
.globl rt_interrupt_to_thread
.globl rt_hw_context_switch_interrupt
rt_hw_context_switch_interrupt:
la t0, rt_thread_switch_interrupt_flag
lw t1, 0(t0)
nop
bnez t1, _reswitch
nop
li t1, 0x01 /* set rt_thread_switch_interrupt_flag to 1 */
sw t1, 0(t0)
la t0, rt_interrupt_from_thread /* set rt_interrupt_from_thread */
sw a0, 0(t0)
_reswitch:
la t0, rt_interrupt_to_thread /* set rt_interrupt_to_thread */
sw a1, 0(t0)
jr ra
nop
.globl system_dump
/*
* void rt_hw_context_switch_interrupt_do(rt_base_t flag)
*/
.globl rt_interrupt_enter
.globl rt_interrupt_leave
.globl mips_irq_handle
mips_irq_handle:
SAVE_ALL
mfc0 t0, CP0_CAUSE
mfc0 t1, CP0_STATUS
and t0, t1
andi t0, 0xff00
beqz t0, spurious_interrupt
nop
/* let k0 keep the current context sp */
move k0, sp
/* switch to kernel stack */
li sp, SYSTEM_STACK
jal rt_interrupt_enter
nop
jal rt_interrupt_dispatch
nop
jal rt_interrupt_leave
nop
/* switch sp back to thread's context */
move sp, k0
/*
* if rt_thread_switch_interrupt_flag set, jump to
* rt_hw_context_switch_interrupt_do and don't return
*/
la k0, rt_thread_switch_interrupt_flag
lw k1, 0(k0)
beqz k1, spurious_interrupt
nop
sw zero, 0(k0) /* clear flag */
nop
/*
* switch to the new thread
*/
la k0, rt_interrupt_from_thread
lw k1, 0(k0)
nop
sw sp, 0(k1) /* store sp in preempted tasks's TCB */
la k0, rt_interrupt_to_thread
lw k1, 0(k0)
nop
lw sp, 0(k1) /* get new task's stack pointer */
j spurious_interrupt
nop
spurious_interrupt:
RESTORE_ALL_AND_RET
.set reorder

75
libcpu/mips/xburst/cpu.c
View File

@ -1,75 +0,0 @@
/*
* File : cpu.c
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2010-07-09 Bernard first version
* 2010-09-11 Bernard add CPU reset implementation
*/
#include <rtthread.h>
#include <board.h>
/**
* @addtogroup Ingenic
*/
/*@{*/
/**
* this function will reset CPU
*
*/
void rt_hw_cpu_reset()
{
/* open the watch-dog */
REG_WDT_TCSR = WDT_TCSR_EXT_EN;
REG_WDT_TCSR |= WDT_TCSR_PRESCALE_1024;
REG_WDT_TDR = 0x03;
REG_WDT_TCNT = 0x00;
REG_WDT_TCER |= WDT_TCER_TCEN;
rt_kprintf("reboot system...\n");
while (1);
}
/**
* this function will shutdown CPU
*
*/
void rt_hw_cpu_shutdown()
{
rt_kprintf("shutdown...\n");
while (1);
}
/**
* This function finds the first bit set (beginning with the least significant bit)
* in value and return the index of that bit.
*
* Bits are numbered starting at 1 (the least significant bit). A return value of
* zero from any of these functions means that the argument was zero.
*
* @return return the index of the first bit set. If value is 0, then this function
* shall return 0.
*/
int __rt_ffs(int value)
{
return __builtin_ffs(value);
}
/*@}*/

81
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@ -1,81 +0,0 @@
/*
* File : exception.c
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2010-05-17 swkyer first version
*/
#include <rtthread.h>
#include <rthw.h>
#include "../common/exception.h"
#include "../common/mipsregs.h"
/**
* @addtogroup Ingenic
*/
/*@{*/
/**
* exception handle table
*/
exception_func_t sys_exception_handlers[33];
/**
* setup the exception handle
*/
exception_func_t rt_set_except_vector(int n, exception_func_t func)
{
exception_func_t old_handler = sys_exception_handlers[n];
if ((n == 0) || (n > 32) || (!func))
{
return 0;
}
sys_exception_handlers[n] = func;
return old_handler;
}
void tlb_refill_handler(void)
{
rt_kprintf("tlb-miss happens, epc: 0x%08x\n", read_c0_epc());
rt_hw_cpu_shutdown();
}
void cache_error_handler(void)
{
rt_kprintf("cache exception happens, epc: 0x%08x\n", read_c0_epc());
rt_hw_cpu_shutdown();
}
static void unhandled_exception_handle(pt_regs_t *regs)
{
rt_kprintf("exception happens, epc: 0x%08x\n", regs->cp0_epc);
}
void install_default_execpt_handle(void)
{
rt_int32_t i;
for (i=0; i<33; i++)
sys_exception_handlers[i] = (exception_func_t)unhandled_exception_handle;
}
/*@}*/

249
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@ -1,249 +0,0 @@
/*
* File : interrupt.c
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* 2010-07-09 Bernard first version
* 2013-03-29 aozima Modify the interrupt interface implementations.
*/
#include <rtthread.h>
#include <rthw.h>
#include <board.h>
#if defined(RT_USING_JZ4770) || defined(RT_USING_JZ4775) || defined(RT_USING_JZ_M150) || defined(RT_USING_JZ_X1000)
#define INTERRUPTS_MAX 64
#else
#define INTERRUPTS_MAX 32
#endif
extern rt_uint32_t rt_interrupt_nest;
rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
rt_uint32_t rt_thread_switch_interrupt_flag;
static struct rt_irq_desc isr_table[INTERRUPTS_MAX];
/**
* @addtogroup Ingenic
*/
/*@{*/
static void rt_hw_interrupt_handler(int vector, void *param)
{
rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
}
/**
* This function will initialize hardware interrupt
*/
void rt_hw_interrupt_init(void)
{
rt_int32_t idx;
rt_memset(isr_table, 0x00, sizeof(isr_table));
for (idx = 0; idx < INTERRUPTS_MAX; idx ++)
{
isr_table[idx].handler = rt_hw_interrupt_handler;
}
/* init interrupt nest, and context in thread sp */
rt_interrupt_nest = 0;
rt_interrupt_from_thread = 0;
rt_interrupt_to_thread = 0;
rt_thread_switch_interrupt_flag = 0;
}
/**
* This function will mask a interrupt.
* @param vector the interrupt number
*/
void rt_hw_interrupt_mask(int vector)
{
/* mask interrupt */
__intc_mask_irq(vector);
}
/**
* This function will un-mask a interrupt.
* @param vector the interrupt number
*/
void rt_hw_interrupt_umask(int vector)
{
__intc_unmask_irq(vector);
}
/**
* This function will install a interrupt service routine to a interrupt.
* @param vector the interrupt number
* @param handler the interrupt service routine to be installed
* @param param the interrupt service function parameter
* @param name the interrupt name
* @return old handler
*/
rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
void *param, const char *name)
{
rt_isr_handler_t old_handler = RT_NULL;
if(vector < INTERRUPTS_MAX)
{
old_handler = isr_table[vector].handler;
#ifdef RT_USING_INTERRUPT_INFO
rt_strncpy(isr_table[vector].name, name, RT_NAME_MAX);
#endif /* RT_USING_INTERRUPT_INFO */
isr_table[vector].handler = handler;
isr_table[vector].param = param;
}
return old_handler;
}
#if defined(RT_USING_JZ4770) || defined(RT_USING_JZ4775) || defined(RT_USING_JZ_M150) || defined(RT_USING_JZ_X1000)
/*
* fls - find last bit set.
* @word: The word to search
*
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
rt_inline int fls(int x)
{
__asm__("clz %0, %1" : "=r" (x) : "r" (x));
return 32 - x;
}
#endif
#include <mipsregs.h>
void rt_interrupt_dispatch(void *ptreg)
{
int i;
void *param;
rt_isr_handler_t irq_func;
#if defined(RT_USING_JZ4770) || defined(RT_USING_JZ4775) || defined(RT_USING_JZ_M150) || defined(RT_USING_JZ_X1000)
int irq = 0, group;
rt_uint32_t intc_ipr0 = 0, intc_ipr1 = 0, vpu_pending = 0;
rt_uint32_t c0_status, c0_cause;
rt_uint32_t pending_im;
/* check os timer */
c0_status = read_c0_status();
c0_cause = read_c0_cause();
pending_im = (c0_cause & ST0_IM) & (c0_status & ST0_IM);
if (pending_im & CAUSEF_IP3)
{
extern void rt_hw_ost_handler(void);
rt_hw_ost_handler();
return;
}
if (pending_im & CAUSEF_IP2)
{
intc_ipr0 = REG_INTC_IPR(0);
intc_ipr1 = REG_INTC_IPR(1);
if (intc_ipr0)
{
irq = fls(intc_ipr0) - 1;
intc_ipr0 &= ~(1<<irq);
}
else if(intc_ipr1)
{
irq = fls(intc_ipr1) - 1;
intc_ipr1 &= ~(1<<irq);
irq += 32;
}
#ifndef RT_USING_JZ_X1000 /* X1000 has no VPU */
else
{
__asm__ __volatile__ (
"mfc0 %0, $13, 0 \n\t"
"nop \n\t"
:"=r"(vpu_pending)
:);
if(vpu_pending & 0x800)
irq = IRQ_VPU;
else
return;
}
#endif
if (irq >= INTERRUPTS_MAX)
rt_kprintf("max interrupt, irq=%d\n", irq);
/* do interrupt */
irq_func = isr_table[irq].handler;
param = isr_table[irq].param;
(*irq_func)(irq, param);
#ifdef RT_USING_INTERRUPT_INFO
isr_table[i].counter++;
#endif /* RT_USING_INTERRUPT_INFO */
/* ack interrupt */
__intc_ack_irq(irq);
}
if (pending_im & CAUSEF_IP0)
rt_kprintf("CAUSEF_IP0\n");
if (pending_im & CAUSEF_IP1)
rt_kprintf("CAUSEF_IP1\n");
if (pending_im & CAUSEF_IP4)
rt_kprintf("CAUSEF_IP4\n");
if (pending_im & CAUSEF_IP5)
rt_kprintf("CAUSEF_IP5\n");
if (pending_im & CAUSEF_IP6)
rt_kprintf("CAUSEF_IP6\n");
if (pending_im & CAUSEF_IP7)
rt_kprintf("CAUSEF_IP7\n");
#else
static rt_uint32_t pending = 0;
/* the hardware interrupt */
pending |= REG_INTC_IPR;
if (!pending) return;
for (i = INTERRUPTS_MAX; i > 0; --i)
{
if ((pending & (1<<i)))
{
pending &= ~(1<<i);
/* do interrupt */
irq_func = isr_table[i].handler;
param = isr_table[i].param;
(*irq_func)(i, param);
#ifdef RT_USING_INTERRUPT_INFO
isr_table[i].counter++;
#endif /* RT_USING_INTERRUPT_INFO */
/* ack interrupt */
__intc_ack_irq(i);
}
}
#endif
}
/*@}*/

358
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@ -1,358 +0,0 @@
/*
* File : mipscfg.c
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2010-05-27 swkyer first version
*/
#include <rtthread.h>
#include "../common/mipsregs.h"
#include "../common/mipscfg.h"
mips32_core_cfg_t g_mips_core =
{
16, /* icache_line_size */
256, /* icache_lines_per_way */
4, /* icache_ways */
16, /* dcache_line_size */
256, /* dcache_lines_per_way */
4, /* dcache_ways */
16, /* max_tlb_entries */
};
static rt_uint16_t m_pow(rt_uint16_t b, rt_uint16_t n)
{
rt_uint16_t rets = 1;
while (n--)
rets *= b;
return rets;
}
/**
* read core attribute
*/
void mips32_cfg_init(void)
{
rt_uint16_t val;
rt_uint32_t cp0_config1;
cp0_config1 = read_c0_config();
if (cp0_config1 & 0x80000000)
{
cp0_config1 = read_c0_config1();
val = (cp0_config1 & (7<<22))>>22;
g_mips_core.icache_lines_per_way = 64 * m_pow(2, val);
val = (cp0_config1 & (7<<19))>>19;
g_mips_core.icache_line_size = 2 * m_pow(2, val);
val = (cp0_config1 & (7<<16))>>16;
g_mips_core.icache_ways = val + 1;
val = (cp0_config1 & (7<<13))>>13;
g_mips_core.dcache_lines_per_way = 64 * m_pow(2, val);
val = (cp0_config1 & (7<<10))>>10;
g_mips_core.dcache_line_size = 2 * m_pow(2, val);
val = (cp0_config1 & (7<<7))>>7;
g_mips_core.dcache_ways = val + 1;
val = (cp0_config1 & (0x3F<<25))>>25;
g_mips_core.max_tlb_entries = val + 1;
}
}
#ifdef RT_USING_FINSH
#include <finsh.h>
static void CP0_status_analyze(unsigned long value)
{
if(value & (1<<26))
rt_kprintf(" FR");
if(value & (1<<23))
rt_kprintf(" PX");
if(value & (1<<22))
rt_kprintf(" BEV");
if(value & (1<<20))
rt_kprintf(" SR");
if(value & (1<<19))
rt_kprintf(" NMI");
if(value & (1<<20))
rt_kprintf(" SR");
if(value & (0xFF<<8))
rt_kprintf(" IM:0x%02X", (value >> 8) & 0xFF);
if(value & (1<<7))
rt_kprintf(" KX");
if(value & (1<<6))
rt_kprintf(" SX");
if(value & (1<<5))
rt_kprintf(" UX");
if(value & (0x03<<3))
rt_kprintf(" KSU:0x%02X", (value >> 3) & 0x03);
if(value & (1<<2))
rt_kprintf(" ERL");
if(value & (1<<1))
rt_kprintf(" EXL");
if(value & (1<<0))
rt_kprintf(" IE");
}
static void CP0_config0_analyze(unsigned long value)
{
/* [31] M */
if(value & (1UL<<31))
rt_kprintf(" M");
/* [15] BE */
if(value & (1<<15))
rt_kprintf(" big-endian");
else
rt_kprintf(" little-endian");
/* [14:13] AT */
{
int AT = (value >> 13) & 0x03;
if(AT == 0)
{
rt_kprintf(" MIPS32");
}
else if(AT == 1)
{
rt_kprintf(" MIPS64/A32");
}
else if(AT == 2)
{
rt_kprintf(" MIPS64/A64");
}
else
{
rt_kprintf(" unkown");
}
}
/* [12:10] AR */
{
int AR = (value >> 10) & 0x07;
if(AR == 0)
{
rt_kprintf(" R1");
}
else if(AR == 1)
{
rt_kprintf(" R2");
}
else
{
rt_kprintf(" reserve");
}
}
/* [3] VI */
if(value & (1UL<<31))
rt_kprintf(" VI");
/* [2:0] K0 */
{
int K0 = value & 0x07;
if(K0 == 2)
{
rt_kprintf(" uncached");
}
else if(K0 == 3)
{
rt_kprintf(" cacheable");
}
else
{
rt_kprintf(" K0:reserve");
}
}
}
static void CP0_config1_analyze(unsigned long value)
{
/* [31] M */
if(value & (1UL<<31))
rt_kprintf(" M");
/* [30:25] MMU size */
{
int MMU_size = (value >> 25) & 0x3F;
rt_kprintf(" TLB:%d", MMU_size + 1);
}
/* [24:22] IS, [21:19] IL, [18:16] IA */
{
int IS = (value >> 22) & 0x07;
int IL = (value >> 19) & 0x07;
int IA = (value >> 16) & 0x07;
IA = IA + 1;
IS = 64 << IS;
IL = 2 << IL;
rt_kprintf(" Icache-%dKB:%dway*%dset*%dbyte",
(IA*IS*IL) >> 10, IA, IS, IL);
}
/* [15:13] DS, [12:10] DL, [9:7] DA */
{
int DS = (value >> 13) & 0x07;
int DL = (value >> 10) & 0x07;
int DA = (value >> 7) & 0x07;
DA = DA + 1;
DS = 64 << DS;
DL = 2 << DL;
rt_kprintf(" Dcache-%dKB:%dway*%dset*%dbyte",
(DA*DS*DL) >> 10, DA, DS, DL);
}
/* [6] C2 */
if(value & (1UL<<6))
rt_kprintf(" CP2");
/* [5] MD */
if(value & (1UL<<5))
rt_kprintf(" MDMX-ASE");
/* [4] PC */
if(value & (1UL<<4))
rt_kprintf(" performa-count");
/* [3] WR */
if(value & (1UL<<3))
rt_kprintf(" Watch");
/* [2] CA */
if(value & (1UL<<2))
rt_kprintf(" MIPS16e");
/* [1] EP */
if(value & (1UL<<1))
rt_kprintf(" EJTAG");
/* [0] FP */
if(value & (1UL<<0))
rt_kprintf(" FPU");
}
static void CP0_config2_analyze(unsigned long value)
{
/* [31] M */
if(value & (1UL<<31))
rt_kprintf(" M");
}
static void CP0_config3_analyze(unsigned long value)
{
/* [31] M */
if(value & (1UL<<31))
rt_kprintf(" M");
}
static void list_mips(void)
{
unsigned long value;
unsigned long num = 0;
rt_kprintf("MIPS coprocessor register:\r\n");
rt_kprintf("( 0,0) INDEX : 0x%08X\r\n", read_c0_index());
rt_kprintf("( 1,0) RANDOM : 0x%08X\r\n", read_c0_random());
rt_kprintf("( 2,0) ENTRYLO0 : 0x%08X\r\n", read_c0_entrylo0());
rt_kprintf("( 3,0) ENTRYLO1 : 0x%08X\r\n", read_c0_entrylo1());
rt_kprintf("( 4,0) CONTEXT : 0x%08X\r\n", read_c0_context());
rt_kprintf("( 5,0) PAGEMASK : 0x%08X\r\n", read_c0_pagemask());
rt_kprintf("( 6,0) WIRED : 0x%08X\r\n", read_c0_wired());
rt_kprintf("( 7,0) INFO : 0x%08X\r\n", read_c0_info());
rt_kprintf("( 8,0) BADVADDR : 0x%08X\r\n", read_c0_badvaddr());
rt_kprintf("( 9,0) COUNT : 0x%08X\r\n", read_c0_count());
rt_kprintf("(10,0) ENTRYHI : 0x%08X\r\n", read_c0_entryhi());
rt_kprintf("(11,0) COMPARE : 0x%08X\r\n", read_c0_compare());
value = read_c0_status();
rt_kprintf("(12,0) STATUS : 0x%08X", value);
CP0_status_analyze(value);
rt_kprintf("\r\n");
/*
rt_kprintf("(12,1) INTCTL : 0x%08X\r\n", __read_32bit_c0_register(12, 1));
rt_kprintf("(12,2) SRSCTL : 0x%08X\r\n", __read_32bit_c0_register(12, 2));
*/
rt_kprintf("(13,0) CAUSE : 0x%08X\r\n", read_c0_cause());
rt_kprintf("(14,0) EPC : 0x%08X\r\n", read_c0_epc());
rt_kprintf("(15,0) PRID : 0x%08X\r\n", read_c0_prid());
rt_kprintf("(15,1) EBASE : 0x%08X\r\n", read_c0_ebase());
value = read_c0_config();
rt_kprintf("(16,0) CONFIG : 0x%08X", value);
CP0_config0_analyze(value);
rt_kprintf("\r\n");
if(value & (1UL << 31))
{
value = read_c0_config1();
rt_kprintf("(16,1) CONFIG1 : 0x%08X", value);
CP0_config1_analyze(value);
rt_kprintf("\r\n");
if(value & (1UL << 31))
{
value = read_c0_config2();
rt_kprintf("(16,2) CONFIG2 : 0x%08X\r\n", value);
CP0_config2_analyze(value);
rt_kprintf("\r\n");
if(value & (1UL << 31))
{
value = read_c0_config3();
rt_kprintf("(16,3) CONFIG3 : 0x%08X\r\n", value);
CP0_config3_analyze(value);
rt_kprintf("\r\n");
}
}
}
rt_kprintf("(17,0) LLADDR : 0x%08X\r\n", __read_32bit_c0_register($17, 0));
rt_kprintf("(18,0) WATCHLO : 0x%08X\r\n", __read_32bit_c0_register($18, 0));
rt_kprintf("(19,0) WATCHHI : 0x%08X\r\n", __read_32bit_c0_register($19, 0));
rt_kprintf("(20,0) XCONTEXT : 0x%08X\r\n", __read_32bit_c0_register($20, 0));
rt_kprintf("(21,0) FRAMEMASK : 0x%08X\r\n", __read_32bit_c0_register($21, 0));
rt_kprintf("(22,0) DIAGNOSTIC: 0x%08X\r\n", __read_32bit_c0_register($22, 0));
rt_kprintf("(23,0) DEBUG : 0x%08X\r\n", __read_32bit_c0_register($23, 0));
rt_kprintf("(24,0) DEPC : 0x%08X\r\n", __read_32bit_c0_register($24, 0));
rt_kprintf("(25,0) PERFCTL0 : 0x%08X\r\n", __read_32bit_c0_register($25, 0));
rt_kprintf("(26,0) ECC : 0x%08X\r\n", __read_32bit_c0_register($26, 0));
rt_kprintf("(27,0) CACHEERR : 0x%08X\r\n", __read_32bit_c0_register($27, 0));
rt_kprintf("(28,0) TAGLO : 0x%08X\r\n", __read_32bit_c0_register($28, 0));
rt_kprintf("(29,0) TAGHI : 0x%08X\r\n", __read_32bit_c0_register($29, 0));
/*
rt_kprintf("(30,0) ERROREPC : 0x%08X\r\n", __read_32bit_c0_register($30, 0));
rt_kprintf("(31,0) DESAVE : 0x%08X\r\n", __read_32bit_c0_register($31, 0));
*/
rt_kprintf("\r\n");
}
FINSH_FUNCTION_EXPORT(list_mips, list CPU info)
#endif /* RT_USING_FINSH */

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libcpu/mips/xburst/stack.c
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/*
* File : stack.c
* COPYRIGHT (C) 2008 - 2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2010-05-17 swkyer first version
* 2010-07-07 Bernard porting to Ingenic CPU
*/
#include <rtthread.h>
/**
* @addtogroup Ingenic
*/
/*@{*/
extern rt_uint32_t cp0_get_cause(void);
extern rt_uint32_t cp0_get_status(void);
extern rt_uint32_t cp0_get_hi(void);
extern rt_uint32_t cp0_get_lo(void);
/**
* This function will initialize thread stack
*
* @param tentry the entry of thread
* @param parameter the parameter of entry
* @param stack_addr the beginning stack address
* @param texit the function will be called when thread exit
*
* @return stack address
*/
rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit)
{
rt_uint32_t *stk;
static rt_uint32_t g_sr = 0;
if (g_sr == 0)
{
g_sr = cp0_get_status();
g_sr &= 0xfffffffe;
g_sr |= 0x0403;
}
/** Start at stack top */
stk = (rt_uint32_t *)stack_addr;
*(stk) = (rt_uint32_t) tentry; /* pc: Entry Point */
*(--stk) = (rt_uint32_t) 0xeeee; /* c0_cause */
*(--stk) = (rt_uint32_t) 0xffff; /* c0_badvaddr */
*(--stk) = (rt_uint32_t) cp0_get_lo(); /* lo */
*(--stk) = (rt_uint32_t) cp0_get_hi(); /* hi */
*(--stk) = (rt_uint32_t) g_sr; /* C0_SR: HW2 = En, IE = En */
*(--stk) = (rt_uint32_t) texit; /* ra */
*(--stk) = (rt_uint32_t) 0x0000001e; /* s8 */
*(--stk) = (rt_uint32_t) stack_addr; /* sp */
*(--stk) = (rt_uint32_t) 0x0000001c; /* gp */
*(--stk) = (rt_uint32_t) 0x0000001b; /* k1 */
*(--stk) = (rt_uint32_t) 0x0000001a; /* k0 */
*(--stk) = (rt_uint32_t) 0x00000019; /* t9 */
*(--stk) = (rt_uint32_t) 0x00000018; /* t8 */
*(--stk) = (rt_uint32_t) 0x00000017; /* s7 */
*(--stk) = (rt_uint32_t) 0x00000016; /* s6 */
*(--stk) = (rt_uint32_t) 0x00000015; /* s5 */
*(--stk) = (rt_uint32_t) 0x00000014; /* s4 */
*(--stk) = (rt_uint32_t) 0x00000013; /* s3 */
*(--stk) = (rt_uint32_t) 0x00000012; /* s2 */
*(--stk) = (rt_uint32_t) 0x00000011; /* s1 */
*(--stk) = (rt_uint32_t) 0x00000010; /* s0 */
*(--stk) = (rt_uint32_t) 0x0000000f; /* t7 */
*(--stk) = (rt_uint32_t) 0x0000000e; /* t6 */
*(--stk) = (rt_uint32_t) 0x0000000d; /* t5 */
*(--stk) = (rt_uint32_t) 0x0000000c; /* t4 */
*(--stk) = (rt_uint32_t) 0x0000000b; /* t3 */
*(--stk) = (rt_uint32_t) 0x0000000a; /* t2 */
*(--stk) = (rt_uint32_t) 0x00000009; /* t1 */
*(--stk) = (rt_uint32_t) 0x00000008; /* t0 */
*(--stk) = (rt_uint32_t) 0x00000007; /* a3 */
*(--stk) = (rt_uint32_t) 0x00000006; /* a2 */
*(--stk) = (rt_uint32_t) 0x00000005; /* a1 */
*(--stk) = (rt_uint32_t) parameter; /* a0 */
*(--stk) = (rt_uint32_t) 0x00000003; /* v1 */
*(--stk) = (rt_uint32_t) 0x00000002; /* v0 */
*(--stk) = (rt_uint32_t) 0x00000001; /* at */
*(--stk) = (rt_uint32_t) 0x00000000; /* zero */
/* return task's current stack address */
return (rt_uint8_t *)stk;
}
/*@}*/

158
libcpu/mips/xburst/start_gcc.S
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@ -1,158 +0,0 @@
/*
* Copyright (c) 2006-2019, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2010-05-17 swkyer first version
* 2010-09-04 bernard porting to JZ47xx
* 2019-07-19 Zhou Yanjie clean up code
*/
#ifndef __ASSEMBLY__
#define __ASSEMBLY__
#endif
#include "../common/mips_def.h"
#include "../common/stackframe.h"
#include "stack.h"
.section ".start", "ax"
.set noreorder
/* the program entry */
.globl _start
_start:
.set noreorder
la ra, _start
li t1, 0x00800000
mtc0 t1, CP0_CAUSE
/* init cp0 registers. */
li t0, 0x0000FC00 /* BEV = 0 and mask all interrupt */
mtc0 t0, CP0_STATUS
/* setup stack pointer */
li sp, SYSTEM_STACK
la gp, _gp
/* init caches, assumes a 4way * 128set * 32byte I/D cache */
mtc0 zero, CP0_TAGLO /* TAGLO reg */
mtc0 zero, CP0_TAGHI /* TAGHI reg */
li t0, 3 /* enable cache for kseg0 accesses */
mtc0 t0, CP0_CONFIG /* CONFIG reg */
la t0, 0x80000000 /* an idx op should use an unmappable address */
ori t1, t0, 0x4000 /* 16kB cache */
_cache_loop:
cache 0x8, 0(t0) /* index store icache tag */
cache 0x9, 0(t0) /* index store dcache tag */
bne t0, t1, _cache_loop
addiu t0, t0, 0x20 /* 32 bytes per cache line */
nop
/* invalidate BTB */
mfc0 t0, CP0_CONFIG
nop
ori t0, 2
mtc0 t0, CP0_CONFIG
nop
/* copy IRAM section */
la t0, _iramcopy
la t1, _iramstart
la t2, _iramend
_iram_loop:
lw t3, 0(t0)
sw t3, 0(t1)
addiu t1, 4
bne t1, t2, _iram_loop
addiu t0, 4
/* clear bss */
la t0, __bss_start
la t1, __bss_end
_clr_bss_loop:
sw zero, 0(t0)
bne t0, t1, _clr_bss_loop
addiu t0, t0, 4
/* jump to RT-Thread RTOS */
jal rtthread_startup
nop
/* restart, never die */
j _start
nop
.set reorder
.globl cp0_get_cause
cp0_get_cause:
mfc0 v0, CP0_CAUSE
jr ra
nop
.globl cp0_get_status
cp0_get_status:
mfc0 v0, CP0_STATUS
jr ra
nop
.globl cp0_get_hi
cp0_get_hi:
mfhi v0
jr ra
nop
.globl cp0_get_lo
cp0_get_lo:
mflo v0
jr ra
nop
.extern tlb_refill_handler
.extern cache_error_handler
/* Exception Handler */
/* 0x0 - TLB refill handler */
.section .vectors.1, "ax", %progbits
j tlb_refill_handler
nop
/* 0x100 - Cache error handler */
.section .vectors.2, "ax", %progbits
j cache_error_handler
nop
/* 0x180 - Exception/Interrupt handler */
.section .vectors.3, "ax", %progbits
j _general_exception_handler
nop
/* 0x200 - Special Exception Interrupt handler (when IV is set in CP0_CAUSE) */
.section .vectors.4, "ax", %progbits
j _irq_handler
nop
.section .vectors, "ax", %progbits
.extern mips_irq_handle
/* general exception handler */
_general_exception_handler:
.set noreorder
mfc0 k1, CP0_CAUSE
andi k1, k1, 0x7c
srl k1, k1, 2
lw k0, sys_exception_handlers(k1)
jr k0
nop
.set reorder
/* interrupt handler */
_irq_handler:
.set noreorder
la k0, mips_irq_handle
jr k0
nop
.set reorder

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libcpu/mips/xburst/x1000.h
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/*
* File : x1000.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2015-11-19 Urey the first version
*/
#ifndef X1000_H__
#define X1000_H__
#ifndef __ASSEMBLY__
// typedef unsigned int size_t;
#define u64 unsigned long long
#define u32 unsigned int
#define u16 unsigned short
#define u8 unsigned char
#define U64 unsigned long long
#define U32 unsigned int
#define U16 unsigned short
#define U8 unsigned char
#define S64 signed long long
#define S32 int
#define S16 short int
#define S8 signed char
#define cache_unroll(base,op) \
__asm__ __volatile__(" \
.set noreorder; \
.set mips3; \
cache %1, (%0); \
.set mips0; \
.set reorder" \
: \
: "r" (base), \
"i" (op));
/* cpu pipeline flush */
static inline void jz_sync(void)
{
__asm__ volatile ("sync");
}
static inline void writeb(u8 value, u32 address)
{
*((volatile u8 *) address) = value;
}
static inline void writew( u16 value, u32 address)
{
*((volatile u16 *) address) = value;
}
static inline void writel(u32 value, u32 address)
{
*((volatile u32 *) address) = value;
}
static inline u8 readb(u32 address)
{
return *((volatile u8 *)address);
}
static inline u16 readw(u32 address)
{
return *((volatile u16 *)address);
}
static inline u32 readl(u32 address)
{
return *((volatile u32 *)address);
}
static inline void jz_writeb(u32 address, u8 value)
{
*((volatile u8 *)address) = value;
}
static inline void jz_writew(u32 address, u16 value)
{
*((volatile u16 *)address) = value;
}
static inline void jz_writel(u32 address, u32 value)
{
*((volatile u32 *)address) = value;
}
static inline u8 jz_readb(u32 address)
{
return *((volatile u8 *)address);
}
static inline u16 jz_readw(u32 address)
{
return *((volatile u16 *)address);
}
static inline u32 jz_readl(u32 address)
{
return *((volatile u32 *)address);
}
#define REG8(addr) *((volatile u8 *)(addr))
#define REG16(addr) *((volatile u16 *)(addr))
#define REG32(addr) *((volatile u32 *)(addr))
#define BIT(n) (0x01u << (n))
#else
#define REG8(addr) (addr)
#define REG16(addr) (addr)
#define REG32(addr) (addr)
#endif /* !ASSEMBLY */
//----------------------------------------------------------------------
// Register Definitions
//
/* AHB0 BUS Devices Base */
#define HARB0_BASE 0xB3000000
#define EMC_BASE 0xB3010000
#define DDRC_BASE 0xB3020000
#define MDMAC_BASE 0xB3030000
#define LCD_BASE 0xB3050000
#define TVE_BASE 0xB3050000
#define SLCD_BASE 0xB3050000
#define CIM_BASE 0xB3060000
#define IPU_BASE 0xB3080000
/* AHB1 BUS Devices Base */
#define HARB1_BASE 0xB3200000
#define DMAGP0_BASE 0xB3210000
#define DMAGP1_BASE 0xB3220000
#define DMAGP2_BASE 0xB3230000
#define MC_BASE 0xB3250000
#define ME_BASE 0xB3260000
#define DEBLK_BASE 0xB3270000
#define IDCT_BASE 0xB3280000
#define CABAC_BASE 0xB3290000
#define TCSM0_BASE 0xB32B0000
#define TCSM1_BASE 0xB32C0000
#define SRAM_BASE 0xB32D0000
/* AHB2 BUS Devices Base */
#define HARB2_BASE 0xB3400000
#define NEMC_BASE 0xB3410000
#define DMAC_BASE 0xB3420000
#define UHC_BASE 0xB3430000
#define UDC_BASE 0xB3440000
#define GPS_BASE 0xB3480000
#define ETHC_BASE 0xB34B0000
#define BCH_BASE 0xB34D0000
#define MSC0_BASE 0xB3450000
#define MSC1_BASE 0xB3460000
#define MSC2_BASE 0xB3470000
/* APB BUS Devices Base */
#define CPM_BASE 0xB0000000
#define INTC_BASE 0xB0001000
#define TCU_BASE 0xB0002000
#define WDT_BASE 0xB0002000
#define OST_BASE 0xB2000000 /* OS Timer */
#define RTC_BASE 0xB0003000
#define GPIO_BASE 0xB0010000
#define AIC_BASE 0xB0020000
#define DMIC_BASE 0xB0021000
#define ICDC_BASE 0xB0020000
#define UART0_BASE 0xB0030000
#define UART1_BASE 0xB0031000
#define UART2_BASE 0xB0032000
#define UART3_BASE 0xB0033000
#define SCC_BASE 0xB0040000
#define SSI0_BASE 0xB0043000
#define SSI1_BASE 0xB0044000
#define SSI2_BASE 0xB0045000
#define I2C0_BASE 0xB0050000
#define I2C1_BASE 0xB0051000
#define PS2_BASE 0xB0060000
#define SADC_BASE 0xB0070000
#define OWI_BASE 0xB0072000
#define TSSI_BASE 0xB0073000
/* NAND CHIP Base Address*/
#define NEMC_CS1_IOBASE 0Xbb000000
#define NEMC_CS2_IOBASE 0Xba000000
#define NEMC_CS3_IOBASE 0Xb9000000
#define NEMC_CS4_IOBASE 0Xb8000000
#define NEMC_CS5_IOBASE 0Xb7000000
#define NEMC_CS6_IOBASE 0Xb6000000
/*********************************************************************************************************
** WDT
*********************************************************************************************************/
#define WDT_TDR (WDT_BASE + 0x00)
#define WDT_TCER (WDT_BASE + 0x04)
#define WDT_TCNT (WDT_BASE + 0x08)
#define WDT_TCSR (WDT_BASE + 0x0C)
#define REG_WDT_TDR REG16(WDT_TDR)
#define REG_WDT_TCER REG8(WDT_TCER)
#define REG_WDT_TCNT REG16(WDT_TCNT)
#define REG_WDT_TCSR REG16(WDT_TCSR)
#define WDT_TSCR_WDTSC (1 << 16)
#define WDT_TCSR_PRESCALE_1 (0 << 3)
#define WDT_TCSR_PRESCALE_4 (1 << 3)
#define WDT_TCSR_PRESCALE_16 (2 << 3)
#define WDT_TCSR_PRESCALE_64 (3 << 3)
#define WDT_TCSR_PRESCALE_256 (4 << 3)
#define WDT_TCSR_PRESCALE_1024 (5 << 3)
#define WDT_TCSR_EXT_EN (1 << 2)
#define WDT_TCSR_RTC_EN (1 << 1)
#define WDT_TCSR_PCK_EN (1 << 0)
#define WDT_TCER_TCEN (1 << 0)
/*********************************************************************************************************
** ÖÐÏÔ´
*********************************************************************************************************/
/* INTC (Interrupt Controller) */
#define INTC_ISR(n) (INTC_BASE + 0x00 + (n) * 0x20)
#define INTC_IMR(n) (INTC_BASE + 0x04 + (n) * 0x20)
#define INTC_IMSR(n) (INTC_BASE + 0x08 + (n) * 0x20)
#define INTC_IMCR(n) (INTC_BASE + 0x0c + (n) * 0x20)
#define INTC_IPR(n) (INTC_BASE + 0x10 + (n) * 0x20)
#define REG_INTC_ISR(n) REG32(INTC_ISR((n)))
#define REG_INTC_IMR(n) REG32(INTC_IMR((n)))
#define REG_INTC_IMSR(n) REG32(INTC_IMSR((n)))
#define REG_INTC_IMCR(n) REG32(INTC_IMCR((n)))
#define REG_INTC_IPR(n) REG32(INTC_IPR((n)))
// interrupt controller interrupts
#define IRQ_DMIC 0
#define IRQ_AIC0 1
#define IRQ_RESERVED2 2
#define IRQ_RESERVED3 3
#define IRQ_RESERVED4 4
#define IRQ_RESERVED5 5
#define IRQ_RESERVED6 6
#define IRQ_SFC 7
#define IRQ_SSI0 8
#define IRQ_RESERVED9 9
#define IRQ_PDMA 10
#define IRQ_PDMAD 11
#define IRQ_RESERVED12 12
#define IRQ_RESERVED13 13
#define IRQ_GPIO3 14
#define IRQ_GPIO2 15
#define IRQ_GPIO1 16
#define IRQ_GPIO0 17
#define IRQ_RESERVED18 18
#define IRQ_RESERVED19 19
#define IRQ_RESERVED20 20
#define IRQ_OTG 21
#define IRQ_RESERVED22 22
#define IRQ_AES 23
#define IRQ_RESERVED24 24
#define IRQ_TCU2 25
#define IRQ_TCU1 26
#define IRQ_TCU0 27
#define IRQ_RESERVED28 28
#define IRQ_RESERVED29 29
#define IRQ_CIM 30
#define IRQ_LCD 31
#define IRQ_RTC 32
#define IRQ_RESERVED33 33
#define IRQ_RESERVED34 34
#define IRQ_RESERVED35 35
#define IRQ_MSC1 36
#define IRQ_MSC0 37
#define IRQ_SCC 38
#define IRQ_RESERVED39 39
#define IRQ_PCM0 40
#define IRQ_RESERVED41 41
#define IRQ_RESERVED42 42
#define IRQ_RESERVED43 43
#define IRQ_HARB2 44
#define IRQ_RESERVED45 45
#define IRQ_HARB0 46
#define IRQ_CPM 47
#define IRQ_RESERVED48 48
#define IRQ_UART2 49
#define IRQ_UART1 50
#define IRQ_UART0 51
#define IRQ_DDR 52
#define IRQ_RESERVED53 53
#define IRQ_EFUSE 54
#define IRQ_MAC 55
#define IRQ_RESERVED56 56
#define IRQ_RESERVED57 57
#define IRQ_I2C2 58
#define IRQ_I2C1 59
#define IRQ_I2C0 60
#define IRQ_PDMAM 61
#define IRQ_JPEG 62
#define IRQ_RESERVED63 63
#define IRQ_INTC_MAX 63
#ifndef __ASSEMBLY__
#define __intc_unmask_irq(n) (REG_INTC_IMCR((n)/32) = (1 << ((n)%32)))
#define __intc_mask_irq(n) (REG_INTC_IMSR((n)/32) = (1 << ((n)%32)))
#define __intc_ack_irq(n) (REG_INTC_IPR((n)/32) = (1 << ((n)%32))) /* A dummy ack, as the Pending Register is Read Only. Should we remove __intc_ack_irq() */
#endif /* !__ASSEMBLY__ */
#endif /* _JZ_M150_H_ */