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

annotate packages/hal/mips/arch/current/include/hal_arch.h @ 151:25e238959bae

Merge from eCos master repository on 2001-02-12-23:44:24-GMT

author	jlarmour
date	Tue, 13 Feb 2001 01:23:16 +0000
parents	02ea4320376c
children	0d2b193a635f

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).
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	57 // Notes: This structure is carefully laid out. It is a multiple of 8
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	58 // bytes and the pc and badvr fields are positioned to ensure that
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	59 // they are on 8 byte boundaries.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	60
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	61 #ifdef CYGHWR_HAL_MIPS_64BIT
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_WORD64
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 8
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	64 #else
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	65 # 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	66 # 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	67 #endif
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	68
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	69 #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	70 # 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	71 # 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	72 # 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	73 # 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	74 # else
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	75 # 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	76 # endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	77 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	78
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	79 typedef struct
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	80 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	81 // 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	82 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	83 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	84 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	85 #ifdef CYGHWR_HAL_MIPS_FPU
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	86 CYG_HAL_FPU_REG f[32]; /* FPU registers */
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	87 CYG_WORD32 fcr31; /* FPU control/status register */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	88 CYG_WORD32 fppad; /* Dummy location to make this */
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	89 /* structure a multiple of 8 */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	90 /* bytes long. */
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	91 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	92
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	93 // These are only saved for exceptions and interrupts
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	94 CYG_WORD32 vector; /* Vector number */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	95 CYG_WORD32 sr; /* Status Reg */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	96 CYG_HAL_MIPS_REG pc; /* Program Counter */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	97 CYG_WORD32 cache; /* Cache control register */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	98
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	99
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	100 // These are only saved for exceptions, and are not restored
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	101 // when continued.
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	102 CYG_WORD32 cause; /* Exception cause register */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	103 CYG_HAL_MIPS_REG badvr; /* Bad virtual address reg */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	104 CYG_WORD32 prid; /* Processor Version */
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 112 diff changeset	105 CYG_WORD32 config; /* Config register */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	106 } HAL_SavedRegisters;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	107
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	108 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	109 // Exception handling function.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	110 // 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	111 // 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	112 // 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	113 // delivery mechanism.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	114
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	115 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	116
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	117 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	118 // Bit manipulation macros
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 externC cyg_uint32 hal_lsbit_index(cyg_uint32 mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	121 externC cyg_uint32 hal_msbit_index(cyg_uint32 mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	122
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	123 #define HAL_LSBIT_INDEX(index, mask) index = hal_lsbit_index(mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	124
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	125 #define HAL_MSBIT_INDEX(index, mask) index = hal_msbit_index(mask);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	126
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	127 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	128 // Context Initialization
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	129
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	130
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	131 // Optional FPU context initialization
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	132 #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	133 #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	134 { \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	135 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	136 (_regs_)->fcr31 = 0x01000000; \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	137 }
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	138 #else
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	139 #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	140 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	141
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	142
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	143 // Initialize the context of a thread.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	144 // Arguments:
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	145 // _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	146 // _thread_ thread object address, passed as argument to entry point
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	147 // _entry_ entry point address.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	148 // _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	149 #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	150 { \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	151 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	152 register HAL_SavedRegisters *_regs_; \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	153 int _i_; \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	154 _sp_ = _sp_ & 0xFFFFFFF0; \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	155 _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	156 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	157 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	158 (_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	159 (_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	160 (_regs_)->lo = 0; /* LO = 0 */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	161 (_regs_)->hi = 0; /* HI = 0 */ \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	162 (_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	163 (_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	164 (_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	165 (_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	166 _sparg_ = (CYG_ADDRESS)_regs_; \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	167 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	168
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	169 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	170 // Context switch macros.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	171 // The arguments are pointers to locations where the stack pointer
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	172 // 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	173 // next thread is to be fetched.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	174
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	175 externC void hal_thread_switch_context( CYG_ADDRESS to, CYG_ADDRESS from );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	176 externC void hal_thread_load_context( CYG_ADDRESS to )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	177 __attribute__ ((noreturn));
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	178
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	179 #define HAL_THREAD_SWITCH_CONTEXT(_fspptr_,_tspptr_) \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	180 hal_thread_switch_context( (CYG_ADDRESS)_tspptr_, \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	181 (CYG_ADDRESS)_fspptr_);
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	182
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	183 #define HAL_THREAD_LOAD_CONTEXT(_tspptr_) \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	184 hal_thread_load_context( (CYG_ADDRESS)_tspptr_ );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	185
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	186 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	187 // Execution reorder barrier.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	188 // When optimizing the compiler can reorder code. In multithreaded systems
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	189 // where the order of actions is vital, this can sometimes cause problems.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	190 // This macro may be inserted into places where reordering should not happen.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	191 // The "memory" keyword is potentially unnecessary, but it is harmless to
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	192 // keep it.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	193
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	194 #define HAL_REORDER_BARRIER() asm volatile ( "" : : : "memory" )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	195
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	196 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	197 // Breakpoint support
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	198 // 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	199 // happen if executed.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	200 // HAL_BREAKINST is the value of the breakpoint instruction and
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	201 // 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	202 // HAL_BREAKINST_TYPE is the type.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	203
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	204 #define HAL_BREAKPOINT(_label_) \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	205 asm volatile (" .globl " #_label_ ";" \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	206 #_label_":" \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	207 " break 5" \
0 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
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	210 #define HAL_BREAKINST 0x0005000d
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	211
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	212 #define HAL_BREAKINST_SIZE 4
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	213
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	214 #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	215
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	216 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	217 // Thread register state manipulation for GDB support.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	218
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	219 // 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	220 #ifndef CYG_HAL_GDB_REG
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	221 #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	222 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	223
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	224 // 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	225 // 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	226 #define HAL_THREAD_GET_SAVED_REGISTERS( _sp_, _regs_ ) \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	227 (_regs_) = (HAL_SavedRegisters *)(_sp_)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	228
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	229 // 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	230 #ifdef CYGHWR_HAL_MIPS_FPU
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	231 #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	232 CYG_MACRO_START \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	233 int _i_; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	234 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	235 _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	236 _regval_[70] = (_regs_)->fcr31; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	237 CYG_MACRO_END
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	238 #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	239 CYG_MACRO_START \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	240 int _i_; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	241 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	242 (_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	243 (_regs_)->fcr31 = _regval_[70]; \
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	244 CYG_MACRO_END
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	245 #else
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	246 #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	247 #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	248 #endif
01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	249
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	250 // Copy a set of registers from a HAL_SavedRegisters structure into a
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	251 // GDB ordered array.
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	252 #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	253 { \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	254 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	255 int _i_; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	256 \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	257 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	258 _regval_[_i_] = (_regs_)->d[_i_]; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	259 \
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	260 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	261 \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	262 _regval_[32] = (_regs_)->sr; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	263 _regval_[33] = (_regs_)->lo; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	264 _regval_[34] = (_regs_)->hi; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	265 _regval_[35] = (_regs_)->badvr; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	266 _regval_[36] = (_regs_)->cause; \
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	267 _regval_[37] = (_regs_)->pc; \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	268 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	269
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	270 // Copy a GDB ordered array into a HAL_SavedRegisters structure.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	271 #define HAL_SET_GDB_REGISTERS( _regs_ , _aregval_ ) \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	272 { \
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	273 CYG_HAL_GDB_REG _regval_ = (CYG_HAL_GDB_REG )(_aregval_); \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	274 int _i_; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	275 \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	276 for( _i_ = 0; _i_ < 32; _i_++ ) \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	277 (_regs_)->d[_i_] = _regval_[_i_]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	278 \
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 6 diff changeset	279 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	280 \
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	281 (_regs_)->sr = _regval_[32]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	282 (_regs_)->lo = _regval_[33]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	283 (_regs_)->hi = _regval_[34]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	284 (_regs_)->badvr = _regval_[35]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	285 (_regs_)->cause = _regval_[36]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	286 (_regs_)->pc = _regval_[37]; \
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	287 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	288
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	289 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	290 // HAL setjmp
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	291 // 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	292 // required remember to update both sets.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	293
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	294 #define CYGARC_JMP_BUF_SP 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	295 #define CYGARC_JMP_BUF_R16 1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	296 #define CYGARC_JMP_BUF_R17 2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	297 #define CYGARC_JMP_BUF_R18 3
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	298 #define CYGARC_JMP_BUF_R19 4
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	299 #define CYGARC_JMP_BUF_R20 5
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	300 #define CYGARC_JMP_BUF_R21 6
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	301 #define CYGARC_JMP_BUF_R22 7
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	302 #define CYGARC_JMP_BUF_R23 8
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	303 #define CYGARC_JMP_BUF_R28 9
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	304 #define CYGARC_JMP_BUF_R30 10
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	305 #define CYGARC_JMP_BUF_R31 11
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	306
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	307 #define CYGARC_JMP_BUF_SIZE 12
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	308
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	309 typedef cyg_uint32 hal_jmp_buf[CYGARC_JMP_BUF_SIZE];
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	310
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	311 externC int hal_setjmp(hal_jmp_buf env);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	312 externC void hal_longjmp(hal_jmp_buf env, int val);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	313
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	314 //-------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	315 // Idle thread code.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	316 // 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	317 // 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	318 // processor.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	319
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	320 externC void hal_idle_thread_action(cyg_uint32 loop_count);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	321
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	322 #define HAL_IDLE_THREAD_ACTION(_count_) hal_idle_thread_action(_count_)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	323
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	324 //--------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	325 // Minimal and sensible stack sizes: the intention is that applications
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	326 // 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	327 // proper analysis. Idle thread stack should be this big.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	328
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	329 // THESE ARE NOT INTENDED TO BE MICROMETRICALLY ACCURATE FIGURES.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	330 // THEY ARE HOWEVER ENOUGH TO START PROGRAMMING.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	331 // 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	332
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	333 // 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	334 // under "enough rope" sort of disclaimers.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	335
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	336 // 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	337 #define CYGNUM_HAL_STACK_FRAME_SIZE (48)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	338
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	339 // 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	340 #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	341 # 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	342 #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	343 # 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	344 #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	345 # else
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	346 # 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	347 # endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	348 #else
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 18 diff changeset	349 #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	350 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	351
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	352
2 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 // Interrupt + call to ISR, interrupt_end() and the DSR
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	355 #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	356
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	357 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	358
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	359 // 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	360 // conditions (and only used for that purpose) exists. "User" stacks
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	361 // can be much smaller
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	362
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	363 #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	364 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	365 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	366 #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	367
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	368 #else // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
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 // No separate interrupt stack exists. Make sure all threads contain
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	371 // a stack sufficiently large.
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 #define CYGNUM_HAL_STACK_SIZE_MINIMUM (4096)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	374 #define CYGNUM_HAL_STACK_SIZE_TYPICAL (4096)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	375
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	376 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	377
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	378 #endif /* __ASSEMBLER__ */
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	379
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	380 // 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	381 #define CYGARC_KSEG_MASK (0xE0000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	382 #define CYGARC_KSEG_CACHED (0x80000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	383 #define CYGARC_KSEG_UNCACHED (0xA0000000)
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	384 #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	385 #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	386 #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	387 #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	388 #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	389 #ifdef __ASSEMBLER__
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	390 #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	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_CACHED
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	393 #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	394 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	395 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	396 #endif /* __ASSEMBLER__ */
02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 101 diff changeset	397
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	398 //--------------------------------------------------------------------------
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	399 // 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	400 // 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	401 #define CYGARC_HAL_SAVE_GP() \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	402 CYG_MACRO_START \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	403 register CYG_ADDRWORD __gp_save; \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	404 asm volatile ( "move %0,$28;" \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	405 ".extern _gp;" \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	406 "la $gp,_gp;" \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	407 : "=r"(__gp_save))
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	408
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	409 #define CYGARC_HAL_RESTORE_GP() \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	410 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	411 CYG_MACRO_END
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	412
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	413
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	414 //--------------------------------------------------------------------------
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	415 // Macro for finding return address.
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(_x_) \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	417 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	418
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	419 #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	420
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 66 diff changeset	421 //--------------------------------------------------------------------------
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	422 #endif // CYGONCE_HAL_HAL_ARCH_H
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	423 // End of hal_arch.h

Mercurial > ecos

annotate packages/hal/mips/arch/current/include/hal_arch.h @ 151:25e238959bae