flash_v2: packages/hal/mips/arch/current/include/hal

annotate packages/hal/mips/arch/current/include/hal_arch.h @ 112:02ea4320376c ecos-sw-2000-07-21

Merge from eCos master repository on 2000-07-21-21:01:39-BST

author	jlarmour
date	Fri, 21 Jul 2000 21:34:11 +0000
parents	c37d3a9e1b28
children	25e238959bae

rev	line source
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	1 #ifndef CYGONCE_HAL_HAL_ARCH_H
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	2 #define CYGONCE_HAL_HAL_ARCH_H
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	3
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	4 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	5 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	6 // hal_arch.h
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	7 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	8 // Architecture specific abstractions
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	9 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	10 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	11 //####COPYRIGHTBEGIN####
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	12 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	13 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	14 // The contents of this file are subject to the Red Hat eCos Public License
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	15 // Version 1.1 (the "License"); you may not use this file except in
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	16 // compliance with the License. You may obtain a copy of the License at
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	17 // http://www.redhat.com/
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	18 //
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	19 // Software distributed under the License is distributed on an "AS IS"
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	21 // License for the specific language governing rights and limitations under
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	22 // the License.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	23 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	24 // The Original Code is eCos - Embedded Configurable Operating System,
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	25 // released September 30, 1998.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	26 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	27 // The Initial Developer of the Original Code is Red Hat.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	28 // Portions created by Red Hat are
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	29 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	30 // All Rights Reserved.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	31 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	32 //
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	33 //####COPYRIGHTEND####
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	34 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	35 //#####DESCRIPTIONBEGIN####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	36 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	37 // Author(s): nickg
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	38 // Contributors: nickg, dmoseley
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	39 // Date: 1999-02-17
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	40 // Purpose: Define architecture abstractions
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	41 // Usage: #include <cyg/hal/hal_arch.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	42 //
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	43 //####DESCRIPTIONEND####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	44 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	45 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	46
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	47 #ifndef __ASSEMBLER__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	48 #include <pkgconf/hal.h>
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	49 #include <cyg/infra/cyg_type.h>
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	50
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	51 #include <cyg/hal/var_arch.h>
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	52
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	53 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	54 // Processor saved states:
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	55 // The layout of this structure is also defined in "arch.inc", for assembly
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	56 // code. Do not change this without changing that (or vice versa).
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	57
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	58 #ifdef CYGHWR_HAL_MIPS_64BIT
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	59 # define CYG_HAL_MIPS_REG CYG_WORD64
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	60 # define CYG_HAL_MIPS_REG_SIZE 8
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	61 #else
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	62 # define CYG_HAL_MIPS_REG CYG_WORD32
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	63 # define CYG_HAL_MIPS_REG_SIZE 4
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	64 #endif
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	65
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	66 #if defined(CYGHWR_HAL_MIPS_FPU)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	67 # if defined(CYGHWR_HAL_MIPS_FPU_64BIT)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	68 # define CYG_HAL_FPU_REG CYG_WORD64
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	69 # elif defined(CYGHWR_HAL_MIPS_FPU_32BIT)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	70 # define CYG_HAL_FPU_REG CYG_WORD32
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	71 # else
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	72 # error MIPS FPU register size not defined
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	73 # endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	74 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	75
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	76 typedef struct
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	77 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	78 // These are common to all saved states
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	79 CYG_HAL_MIPS_REG d[32]; /* Data regs */
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	80 CYG_HAL_MIPS_REG hi; /* hi word of mpy/div reg */
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	81 CYG_HAL_MIPS_REG lo; /* lo word of mpy/div reg */
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	82 #ifdef CYGHWR_HAL_MIPS_FPU
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	83 CYG_HAL_FPU_REG f[32]; /* FPU registers */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	84 CYG_ADDRWORD fcr31; /* FPU control/status register */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	85 CYG_ADDRWORD fppad; /* Dummy location to make this */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	86 /* structure a multiple of 8 */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	87 /* bytes long. */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	88 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	89
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	90 // These are only saved for exceptions and interrupts
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	91 CYG_ADDRWORD vector; /* Vector number */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	92 CYG_ADDRWORD pc; /* Program Counter */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	93 CYG_ADDRWORD sr; /* Status Reg */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	94 CYG_ADDRWORD cache; /* Cache control register */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	95
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	96
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	97 // These are only saved for exceptions, and are not restored
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	98 // when continued.
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	99 CYG_ADDRWORD cause; /* Exception cause register */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	100 CYG_ADDRWORD badvr; /* Bad virtual address reg */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	101 CYG_ADDRWORD prid; /* Processor Version */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	102 CYG_ADDRWORD config; /* Config register */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	103 } HAL_SavedRegisters;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	104
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	105 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	106 // Exception handling function.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	107 // This function is defined by the kernel according to this prototype. It is
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	108 // invoked from the HAL to deal with any CPU exceptions that the HAL does
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	109 // not want to deal with itself. It usually invokes the kernel's exception
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	110 // delivery mechanism.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	111
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	112 externC void cyg_hal_deliver_exception( CYG_WORD code, CYG_ADDRWORD data );
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	113
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	114 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	115 // Bit manipulation macros
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	116
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	117 externC cyg_uint32 hal_lsbit_index(cyg_uint32 mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	118 externC cyg_uint32 hal_msbit_index(cyg_uint32 mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	119
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	120 #define HAL_LSBIT_INDEX(index, mask) index = hal_lsbit_index(mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	121
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	122 #define HAL_MSBIT_INDEX(index, mask) index = hal_msbit_index(mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	123
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	124 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	125 // Context Initialization
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	126
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	127
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	128 // Optional FPU context initialization
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	129 #ifdef CYGHWR_HAL_MIPS_FPU
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	130 #define HAL_THREAD_INIT_FPU_CONTEXT( _regs_, _id_ ) \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	131 { \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	132 for( _i_ = 0; _i_ < 32; _i_++ ) (_regs_)->f[_i_] = (_id_)\|0xFF00\|_i_; \
18 7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 14 diff changeset	133 (_regs_)->fcr31 = 0x01000000; \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	134 }
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	135 #else
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	136 #define HAL_THREAD_INIT_FPU_CONTEXT( _regs_, _id_ )
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	137 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	138
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	139
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	140 // Initialize the context of a thread.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	141 // Arguments:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	142 // _sparg_ name of variable containing current sp, will be written with new sp
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	143 // _thread_ thread object address, passed as argument to entry point
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	144 // _entry_ entry point address.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	145 // _id_ bit pattern used in initializing registers, for debugging.
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	146 #define HAL_THREAD_INIT_CONTEXT( _sparg_, _thread_, _entry_, _id_ ) \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	147 { \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	148 register CYG_WORD _sp_ = ((CYG_WORD)_sparg_)-56; \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	149 register HAL_SavedRegisters *_regs_; \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	150 int _i_; \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	151 _sp_ = _sp_ & 0xFFFFFFF0; \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	152 _regs_ = (HAL_SavedRegisters *)(((_sp_) - sizeof(HAL_SavedRegisters))&0xFFFFFFF0); \
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	153 for( _i_ = 0; _i_ < 32; _i_++ ) (_regs_)->d[_i_] = (_id_)\|_i_; \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	154 HAL_THREAD_INIT_FPU_CONTEXT( _regs_, _id_ ); \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	155 (_regs_)->d[29] = (CYG_HAL_MIPS_REG)(_sp_); /* SP = top of stack */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	156 (_regs_)->d[04] = (CYG_HAL_MIPS_REG)(_thread_); /* R4 = arg1 = thread ptr */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	157 (_regs_)->lo = 0; /* LO = 0 */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	158 (_regs_)->hi = 0; /* HI = 0 */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	159 (_regs_)->d[30] = (CYG_HAL_MIPS_REG)(_sp_); /* FP = top of stack */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	160 (_regs_)->d[31] = (CYG_HAL_MIPS_REG)(_entry_); /* RA(d[31]) = entry point*/ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	161 (_regs_)->pc = (CYG_WORD)(_entry_); /* PC = entry point */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	162 (_regs_)->sr = 0x00000001; /* SR = ls 3 bits only */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	163 _sparg_ = (CYG_ADDRESS)_regs_; \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	164 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	165
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	166 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	167 // Context switch macros.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	168 // The arguments are pointers to locations where the stack pointer
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	169 // of the current thread is to be stored, and from where the sp of the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	170 // next thread is to be fetched.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	171
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	172 externC void hal_thread_switch_context( CYG_ADDRESS to, CYG_ADDRESS from );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	173 externC void hal_thread_load_context( CYG_ADDRESS to )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	174 __attribute__ ((noreturn));
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	175
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	176 #define HAL_THREAD_SWITCH_CONTEXT(_fspptr_,_tspptr_) \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	177 hal_thread_switch_context( (CYG_ADDRESS)_tspptr_, \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	178 (CYG_ADDRESS)_fspptr_);
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	179
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	180 #define HAL_THREAD_LOAD_CONTEXT(_tspptr_) \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	181 hal_thread_load_context( (CYG_ADDRESS)_tspptr_ );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	182
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	183 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	184 // Execution reorder barrier.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	185 // When optimizing the compiler can reorder code. In multithreaded systems
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	186 // where the order of actions is vital, this can sometimes cause problems.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	187 // This macro may be inserted into places where reordering should not happen.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	188 // The "memory" keyword is potentially unnecessary, but it is harmless to
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	189 // keep it.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	190
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	191 #define HAL_REORDER_BARRIER() asm volatile ( "" : : : "memory" )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	192
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	193 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	194 // Breakpoint support
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	195 // HAL_BREAKPOINT() is a code sequence that will cause a breakpoint to
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	196 // happen if executed.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	197 // HAL_BREAKINST is the value of the breakpoint instruction and
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	198 // HAL_BREAKINST_SIZE is its size in bytes.
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	199 // HAL_BREAKINST_TYPE is the type.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	200
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	201 #define HAL_BREAKPOINT(_label_) \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	202 asm volatile (" .globl " #_label_ ";" \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	203 #_label_":" \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	204 " break 5" \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	205 );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	206
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	207 #define HAL_BREAKINST 0x0005000d
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	208
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	209 #define HAL_BREAKINST_SIZE 4
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	210
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	211 #define HAL_BREAKINST_TYPE cyg_uint32
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	212
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	213 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	214 // Thread register state manipulation for GDB support.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	215
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	216 // Default to a 32 bit register size for GDB register dumps.
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	217 #ifndef CYG_HAL_GDB_REG
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	218 #define CYG_HAL_GDB_REG CYG_WORD32
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	219 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	220
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	221 // Translate a stack pointer as saved by the thread context macros above into
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	222 // a pointer to a HAL_SavedRegisters structure.
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	223 #define HAL_THREAD_GET_SAVED_REGISTERS( _sp_, _regs_ ) \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	224 (_regs_) = (HAL_SavedRegisters *)(_sp_)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	225
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	226 // If the CPU has an FPU, we also need to move the FPU registers.
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	227 #ifdef CYGHWR_HAL_MIPS_FPU
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	228 #define HAL_GET_GDB_FPU_REGISTERS( _regval_ , _regs_ ) \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	229 CYG_MACRO_START \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	230 int _i_; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	231 for( _i_ = 0; _i_ < 32; _i_++ ) \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	232 _regval_[38+_i_] = (_regs_)->f[_i_]; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	233 _regval_[70] = (_regs_)->fcr31; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	234 CYG_MACRO_END
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	235 #define HAL_SET_GDB_FPU_REGISTERS( _regs_ , _regval_ ) \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	236 CYG_MACRO_START \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	237 int _i_; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	238 for( _i_ = 0; _i_ < 32; _i_++ ) \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	239 (_regs_)->f[_i_] = _regval_[38+_i_]; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	240 (_regs_)->fcr31 = _regval_[70]; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	241 CYG_MACRO_END
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	242 #else
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	243 #define HAL_GET_GDB_FPU_REGISTERS( _regval_ , _regs_ )
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	244 #define HAL_SET_GDB_FPU_REGISTERS( _regs_ , _regval_ )
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	245 #endif
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	246
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	247 // Copy a set of registers from a HAL_SavedRegisters structure into a
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	248 // GDB ordered array.
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	249 #define HAL_GET_GDB_REGISTERS( _aregval_ , _regs_ ) \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	250 { \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	251 CYG_HAL_GDB_REG _regval_ = (CYG_HAL_GDB_REG )(_aregval_); \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	252 int _i_; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	253 \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	254 for( _i_ = 0; _i_ < 32; _i_++ ) \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	255 _regval_[_i_] = (_regs_)->d[_i_]; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	256 \
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	257 HAL_GET_GDB_FPU_REGISTERS( _regval_, _regs_ ); \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	258 \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	259 _regval_[32] = (_regs_)->sr; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	260 _regval_[33] = (_regs_)->lo; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	261 _regval_[34] = (_regs_)->hi; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	262 _regval_[35] = (_regs_)->badvr; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	263 _regval_[36] = (_regs_)->cause; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	264 _regval_[37] = (_regs_)->pc; \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	265 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	266
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	267 // Copy a GDB ordered array into a HAL_SavedRegisters structure.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	268 #define HAL_SET_GDB_REGISTERS( _regs_ , _aregval_ ) \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	269 { \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	270 CYG_HAL_GDB_REG _regval_ = (CYG_HAL_GDB_REG )(_aregval_); \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	271 int _i_; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	272 \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	273 for( _i_ = 0; _i_ < 32; _i_++ ) \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	274 (_regs_)->d[_i_] = _regval_[_i_]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	275 \
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	276 HAL_SET_GDB_FPU_REGISTERS( _regs_, _regval_ ); \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	277 \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	278 (_regs_)->sr = _regval_[32]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	279 (_regs_)->lo = _regval_[33]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	280 (_regs_)->hi = _regval_[34]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	281 (_regs_)->badvr = _regval_[35]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	282 (_regs_)->cause = _regval_[36]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	283 (_regs_)->pc = _regval_[37]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	284 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	285
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	286 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	287 // HAL setjmp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	288 // Note: These definitions are repeated in hal_arch.h. If changes are
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	289 // required remember to update both sets.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	290
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	291 #define CYGARC_JMP_BUF_SP 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	292 #define CYGARC_JMP_BUF_R16 1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	293 #define CYGARC_JMP_BUF_R17 2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	294 #define CYGARC_JMP_BUF_R18 3
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	295 #define CYGARC_JMP_BUF_R19 4
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	296 #define CYGARC_JMP_BUF_R20 5
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	297 #define CYGARC_JMP_BUF_R21 6
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	298 #define CYGARC_JMP_BUF_R22 7
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	299 #define CYGARC_JMP_BUF_R23 8
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	300 #define CYGARC_JMP_BUF_R28 9
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	301 #define CYGARC_JMP_BUF_R30 10
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	302 #define CYGARC_JMP_BUF_R31 11
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	303
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	304 #define CYGARC_JMP_BUF_SIZE 12
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	305
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	306 typedef cyg_uint32 hal_jmp_buf[CYGARC_JMP_BUF_SIZE];
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	307
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	308 externC int hal_setjmp(hal_jmp_buf env);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	309 externC void hal_longjmp(hal_jmp_buf env, int val);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	310
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	311 //-------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	312 // Idle thread code.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	313 // This macro is called in the idle thread loop, and gives the HAL the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	314 // chance to insert code. Typical idle thread behaviour might be to halt the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	315 // processor.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	316
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	317 externC void hal_idle_thread_action(cyg_uint32 loop_count);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	318
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	319 #define HAL_IDLE_THREAD_ACTION(_count_) hal_idle_thread_action(_count_)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	320
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	321 //--------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	322 // Minimal and sensible stack sizes: the intention is that applications
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	323 // will use these to provide a stack size in the first instance prior to
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	324 // proper analysis. Idle thread stack should be this big.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	325
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	326 // THESE ARE NOT INTENDED TO BE MICROMETRICALLY ACCURATE FIGURES.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	327 // THEY ARE HOWEVER ENOUGH TO START PROGRAMMING.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	328 // YOU MUST MAKE YOUR STACKS LARGER IF YOU HAVE LARGE "AUTO" VARIABLES!
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	329
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	330 // This is not a config option because it should not be adjusted except
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	331 // under "enough rope" sort of disclaimers.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	332
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	333 // Typical case stack frame size: return link + 4 pushed registers + some locals.
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	334 #define CYGNUM_HAL_STACK_FRAME_SIZE (48)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	335
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	336 // Stack needed for a context switch:
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	337 #if defined(CYGHWR_HAL_MIPS_FPU)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	338 # if defined(CYGHWR_HAL_MIPS_FPU_64BIT)
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	339 #define CYGNUM_HAL_STACK_CONTEXT_SIZE (((32+12)CYG_HAL_MIPS_REG_SIZE)+(328))
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	340 # elif defined(CYGHWR_HAL_MIPS_FPU_32BIT)
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	341 #define CYGNUM_HAL_STACK_CONTEXT_SIZE (((32+12)CYG_HAL_MIPS_REG_SIZE)+(324))
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	342 # else
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	343 # error MIPS FPU register size not defined
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	344 # endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	345 #else
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	346 #define CYGNUM_HAL_STACK_CONTEXT_SIZE ((32+10)*CYG_HAL_MIPS_REG_SIZE)
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	347 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	348
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	349
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	350
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	351 // Interrupt + call to ISR, interrupt_end() and the DSR
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	352 #define CYGNUM_HAL_STACK_INTERRUPT_SIZE (4+2*CYGNUM_HAL_STACK_CONTEXT_SIZE)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	353
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	354 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	355
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	356 // An interrupt stack which is large enough for all possible interrupt
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	357 // conditions (and only used for that purpose) exists. "User" stacks
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	358 // can be much smaller
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	359
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	360 #define CYGNUM_HAL_STACK_SIZE_MINIMUM (CYGNUM_HAL_STACK_CONTEXT_SIZE+ \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	361 CYGNUM_HAL_STACK_INTERRUPT_SIZE*2+ \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	362 CYGNUM_HAL_STACK_FRAME_SIZE*8)
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	363 #define CYGNUM_HAL_STACK_SIZE_TYPICAL (CYGNUM_HAL_STACK_SIZE_MINIMUM+1024)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	364
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	365 #else // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	366
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	367 // No separate interrupt stack exists. Make sure all threads contain
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	368 // a stack sufficiently large.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	369
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	370 #define CYGNUM_HAL_STACK_SIZE_MINIMUM (4096)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	371 #define CYGNUM_HAL_STACK_SIZE_TYPICAL (4096)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	372
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	373 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	374
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	375 #endif /* __ASSEMBLER__ */
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	376
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	377 // Convenience macros for accessing memory cached or uncached
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	378 #define CYGARC_KSEG_MASK (0xE0000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	379 #define CYGARC_KSEG_CACHED (0x80000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	380 #define CYGARC_KSEG_UNCACHED (0xA0000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	381 #define CYGARC_KSEG_CACHED_BASE (0x80000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	382 #define CYGARC_KSEG_UNCACHED_BASE (0xA0000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	383 #define CYGARC_CACHED_ADDRESS(x) (((x) & ~CYGARC_KSEG_MASK) \| CYGARC_KSEG_CACHED)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	384 #define CYGARC_UNCACHED_ADDRESS(x) (((x) & ~CYGARC_KSEG_MASK) \| CYGARC_KSEG_UNCACHED)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	385 #define CYGARC_PHYSICAL_ADDRESS(x) ((x) & ~CYGARC_KSEG_MASK)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	386 #ifdef __ASSEMBLER__
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	387 #define CYGARC_ADDRESS_REG_CACHED(reg) \
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	388 and reg, reg, ~CYGARC_KSEG_MASK; \
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	389 or reg, reg, CYGARC_KSEG_CACHED
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	390 #define CYGARC_ADDRESS_REG_UNCACHED(reg) \
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	391 and reg, reg, ~CYGARC_KSEG_MASK; \
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	392 or reg, reg, CYGARC_KSEG_UNCACHED
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	393 #endif /* __ASSEMBLER__ */
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	394
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	395 //--------------------------------------------------------------------------
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	396 // Macros for switching context between two eCos instances (jump from
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	397 // code in ROM to code in RAM or vice versa).
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	398 #define CYGARC_HAL_SAVE_GP() \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	399 CYG_MACRO_START \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	400 register CYG_ADDRWORD __gp_save; \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	401 asm volatile ( "move %0,$28;" \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	402 ".extern _gp;" \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	403 "la $gp,_gp;" \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	404 : "=r"(__gp_save))
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	405
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	406 #define CYGARC_HAL_RESTORE_GP() \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	407 asm volatile ( "move $gp,%0;" :: "r"(__gp_save) ); \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	408 CYG_MACRO_END
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	409
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	410
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	411 //--------------------------------------------------------------------------
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	412 // Macro for finding return address.
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	413 #define CYGARC_HAL_GET_RETURN_ADDRESS(_x_) \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	414 asm volatile ( "move %0,$31;" : "=r" (_x_) )
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	415
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	416 #define CYGARC_HAL_GET_RETURN_ADDRESS_BACKUP()
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	417
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	418 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	419 #endif // CYGONCE_HAL_HAL_ARCH_H
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	420 // End of hal_arch.h

Mercurial > flash_v2

annotate packages/hal/mips/arch/current/include/hal_arch.h @ 112:02ea4320376c ecos-sw-2000-07-21