ecos: packages/hal/i386/arch/current/include/hal

annotate packages/hal/i386/arch/current/include/hal_arch.h @ 3292:7f8e529b4d82 default tip

Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.

author	vae
date	Wed, 29 Apr 2015 23:31:48 +0000
parents	74dbf4c3f2e1
children

rev	line source
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1 #ifndef CYGONCE_HAL_HAL_ARCH_H
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	2 #define CYGONCE_HAL_HAL_ARCH_H
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	3
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	4 //=============================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	5 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	6 // hal_arch.h
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	7 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	8 // Architecture specific abstractions
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	9 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	10 //=============================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	11 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	12 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	13 // This file is part of eCos, the Embedded Configurable Operating System.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 202 diff changeset	15 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	16 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	17 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	18 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	19 // version.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 202 diff changeset	20 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	21 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	22 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	24 // for more details.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 202 diff changeset	25 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	26 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	27 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	28 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 202 diff changeset	29 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	30 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	31 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	32 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	33 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	34 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	35 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	36 // General Public License v2.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 202 diff changeset	37 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	38 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	39 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	40 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2016 diff changeset	41 // ####ECOSGPLCOPYRIGHTEND####
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	42 //=============================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	43 //#####DESCRIPTIONBEGIN####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	44 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	45 // Author(s): proven
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	46 // Contributors:proven, pjo, nickg
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	47 // Date: 1998-10-05
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	48 // Purpose: Define architecture abstractions
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	49 // Usage: #include <cyg/hal/hal_arch.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	50 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	51 //####DESCRIPTIONEND####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	52 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	53 //=============================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	54
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	55 #include <pkgconf/hal.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	56 #include <cyg/infra/cyg_type.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	57
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	58 #include <cyg/hal/var_arch.h>
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	59
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	60 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	61 // Processor saved states. This structure is also defined in i386.inc for
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	62 // assembly code. Do not change this without changing that (or vice versa).
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	63
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	64 #ifdef CYGHWR_HAL_I386_FPU
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	65
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	66 typedef struct
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	67 {
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	68 cyg_uint32 fpstate_valid;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	69 cyg_uint32 fpstate[108/sizeof(cyg_uint32)];
191 678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	70 #ifdef CYGHWR_HAL_I386_PENTIUM_SSE
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	71 cyg_uint32 xmm0[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	72 cyg_uint32 xmm1[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	73 cyg_uint32 xmm2[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	74 cyg_uint32 xmm3[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	75 cyg_uint32 xmm4[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	76 cyg_uint32 xmm5[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	77 cyg_uint32 xmm6[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	78 cyg_uint32 xmm7[4];
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	79 cyg_uint32 mxcsr;
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 182 diff changeset	80 #endif
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	81 } HAL_FPU_Context;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	82
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	83 #endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	84
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	85 typedef struct
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	86 {
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	87 #ifdef CYGHWR_HAL_I386_FPU
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	88 #ifdef CYGHWR_HAL_I386_FPU_SWITCH_LAZY
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	89 HAL_FPU_Context *fpucontext;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	90 #else
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	91 HAL_FPU_Context fpucontext;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	92 #endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	93 #endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	94 cyg_uint32 edi;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	95 cyg_uint32 esi;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	96 cyg_uint32 ebp;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	97 cyg_uint32 esp;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	98 cyg_uint32 ebx;
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	99 cyg_uint32 edx;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	100 cyg_uint32 ecx;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	101 cyg_uint32 eax;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	102 cyg_uint32 vector; // if saved on interrupt contains intr vector
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	103 cyg_uint32 pc;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	104 cyg_uint32 cs;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	105 cyg_uint32 eflags;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	106 } HAL_SavedRegisters;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	107
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	108
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	109 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	110 // Exception handling function.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	111 // This function is defined by the kernel according to this prototype. It is
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	112 // invoked from the HAL to deal with any CPU exceptions that the HAL does
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	113 // not want to deal with itself. It usually invokes the kernel's exception
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	114 // delivery mechanism.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	115 externC void cyg_hal_deliver_exception( CYG_WORD code, CYG_ADDRWORD data );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	116
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	117 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	118 // Bit manipulation routines
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	119
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	120 #define HAL_LSBIT_INDEX(index, mask) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	121 CYG_MACRO_START \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	122 asm volatile( "bsfl %1,%0\n" \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	123 : "=r" (index) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	124 : "r" (mask) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	125 ); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	126 CYG_MACRO_END
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	127
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	128 #define HAL_MSBIT_INDEX(index, mask) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	129 CYG_MACRO_START \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	130 asm volatile( "bsrl %1,%0\n" \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	131 : "=r" (index) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	132 : "r" (mask) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	133 ); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	134 CYG_MACRO_END
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	135
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	136 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	137 // Context Initialization
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	138 // Initialize the context of a thread.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	139 // Arguments:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	140 // _sp_ name of variable containing current sp, will be written with new sp
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	141 // _thread_ thread object address, passed as argument to entry point
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	142 // _entry_ entry point address.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	143 // _id_ bit pattern used in initializing registers, for debugging.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	144
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	145 #ifndef CYG_HAL_DEFAULT_CS
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	146 #define CYG_HAL_DEFAULT_CS 0x0008
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	147 #endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	148
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	149 #ifdef CYGHWR_HAL_I386_FPU
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	150 # ifdef CYGHWR_HAL_I386_FPU_SWITCH_LAZY
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	151 # define HAL_THREAD_INIT_FPU_CONTEXT_SPACE( __sp, __fpspace ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	152 __sp -= sizeof(HAL_FPU_Context); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	153 __fpspace = __sp;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	154 # define HAL_THREAD_INIT_FPU_CONTEXT( __regs, __fpspace ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	155 CYG_MACRO_START \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	156 cyg_ucount8 __i; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	157 HAL_FPU_Context __fpspace_ = (HAL_FPU_Context )(__fpspace); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	158 (__regs)->fpucontext = __fpspace_; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	159 __fpspace_->fpstate_valid = 0; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	160 for( __i = 0; __i < (sizeof(__fpspace_->fpstate)/sizeof(cyg_uint32)); __i++ ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	161 __fpspace_->fpstate[__i] = 0; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	162 CYG_MACRO_END
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	163 # else
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	164 # define HAL_THREAD_INIT_FPU_CONTEXT_SPACE( __sp, __fpspace ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	165 (__fpspace) = (__fpspace);
170 f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	166 # define HAL_THREAD_INIT_FPU_CONTEXT( __regs, __fpspace ) \
f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	167 CYG_MACRO_START \
f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	168 cyg_ucount8 __i; \
f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	169 HAL_FPU_Context *__fpspace_ = &((__regs)->fpucontext); \
f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	170 __fpspace_->fpstate_valid = 0; \
f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	171 for( __i = 0; __i < (sizeof(__fpspace_->fpstate)/sizeof(cyg_uint32)); __i++ ) \
f664e0b5f88b * include/hal_arch.h (HAL_THREAD_INIT_FPU_CONTEXT): Fix indirection to jlarmour parents: 161 diff changeset	172 __fpspace_->fpstate[__i] = 0; \
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	173 CYG_MACRO_END
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	174 # endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	175 #else
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	176 # define HAL_THREAD_INIT_FPU_CONTEXT_SPACE( __sp, __fpspace ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	177 (__fpspace) = (__fpspace);
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	178 # define HAL_THREAD_INIT_FPU_CONTEXT( __regs, __fpspace )
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	179 #endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	180
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	181
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	182 #define HAL_THREAD_INIT_CONTEXT( _sparg_, _thread_, _entry_, _id_ ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	183 CYG_MACRO_START \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	184 register CYG_WORD* _sp_ = ((CYG_WORD*)((_sparg_) &~15)); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	185 register CYG_WORD *_fpspace_ = NULL; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	186 register HAL_SavedRegisters *_regs_; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	187 \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	188 HAL_THREAD_INIT_FPU_CONTEXT_SPACE( _sp_, _fpspace_ ); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	189 *(--_sp_) = (CYG_WORD)(0); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	190 *(--_sp_) = (CYG_WORD)(0); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	191 *(--_sp_) = (CYG_WORD)(_thread_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	192 *(--_sp_) = (CYG_WORD)(0); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	193 \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	194 _regs_ = (HAL_SavedRegisters *) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	195 ((unsigned long)_sp_ - sizeof(HAL_SavedRegisters)); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	196 HAL_THREAD_INIT_FPU_CONTEXT( _regs_, _fpspace_ ); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	197 _regs_->eflags = (CYG_WORD)(0x00000200); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	198 _regs_->cs = (CYG_WORD)(CYG_HAL_DEFAULT_CS); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	199 _regs_->pc = (CYG_WORD)(_entry_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	200 _regs_->vector = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	201 _regs_->esp = (CYG_WORD) _sp_-4; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	202 _regs_->ebp = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	203 _regs_->esi = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	204 _regs_->edi = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	205 _regs_->eax = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	206 _regs_->ebx = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	207 _regs_->ecx = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	208 _regs_->edx = (CYG_WORD)(_id_); \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	209 (_sparg_) = (CYG_ADDRESS) _regs_; \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	210 CYG_MACRO_END
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	211
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	212 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	213 // Context switch macros.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	214 // The arguments are pointers to locations where the stack pointer
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	215 // of the current thread is to be stored, and from where the sp of the
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	216 // next thread is to be fetched.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	217
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	218 externC void hal_thread_switch_context( CYG_ADDRESS to, CYG_ADDRESS from );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	219 externC void hal_thread_load_context( CYG_ADDRESS to )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	220 __attribute__ ((noreturn));
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	221
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	222 #define HAL_THREAD_SWITCH_CONTEXT(_fspptr_,_tspptr_) \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	223 hal_thread_switch_context((CYG_ADDRESS)_tspptr_,(CYG_ADDRESS)_fspptr_);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	224
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	225 #define HAL_THREAD_LOAD_CONTEXT(_tspptr_) \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	226 hal_thread_load_context( (CYG_ADDRESS)_tspptr_ );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	227
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	228 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	229 // Execution reorder barrier.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	230 // When optimizing the compiler can reorder code. In multithreaded systems
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	231 // where the order of actions is vital, this can sometimes cause problems.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	232 // This macro may be inserted into places where reordering should not happen.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	233
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	234 #define HAL_REORDER_BARRIER() asm volatile ( "" : : : "memory" )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	235
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	236 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	237 // Breakpoint support
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	238 // HAL_BREAKPOINT() is a code sequence that will cause a breakpoint to happen
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	239 // if executed.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	240 // HAL_BREAKINST is the value of the breakpoint instruction and
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	241 // HAL_BREAKINST_SIZE is its size in bytes.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	242
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	243 #define HAL_BREAKPOINT(_label_) \
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	244 CYG_MACRO_START \
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	245 asm volatile (" .globl " #_label_ ";" \
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	246 #_label_":" \
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	247 "int $3" \
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	248 ); \
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	249 CYG_MACRO_END
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	250
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	251 #define HAL_BREAKINST 0xCC
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	252 #define HAL_BREAKINST_SIZE 1
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	253
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	254 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	255 // Thread register state manipulation for GDB support.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	256
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	257 // Translate a stack pointer as saved by the thread context macros above into
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	258 // a pointer to a HAL_SavedRegisters structure.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	259 #define HAL_THREAD_GET_SAVED_REGISTERS( _sp_, _regs_ ) \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	260 (_regs_) = (HAL_SavedRegisters *)(_sp_)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	261
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	262 // Copy a set of registers from a HAL_SavedRegisters structure into a
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	263 // GDB ordered array.
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	264
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	265 externC void hal_get_gdb_registers(CYG_ADDRWORD , HAL_SavedRegisters );
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	266 externC void hal_set_gdb_registers(HAL_SavedRegisters , CYG_ADDRWORD );
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	267
da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	268 #define HAL_GET_GDB_REGISTERS( _aregval_, _regs_ ) \
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	269 hal_get_gdb_registers((CYG_ADDRWORD *)(_aregval_), (_regs_))
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	270
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	271 // Copy a GDB ordered array into a HAL_SavedRegisters structure.
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	272 #define HAL_SET_GDB_REGISTERS( _regs_ , _aregval_ ) \
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	273 hal_set_gdb_registers((_regs_), (CYG_ADDRWORD *)(_aregval_))
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	274
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	275 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	276 // HAL setjmp
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	277
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	278 #define CYGARC_JMP_BUF_SP 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	279 #define CYGARC_JMP_BUF_EBP 1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	280 #define CYGARC_JMP_BUF_EBX 2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	281 #define CYGARC_JMP_BUF_ESI 3
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	282 #define CYGARC_JMP_BUF_EDI 4
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	283 #define CYGARC_JMP_BUF_PC 5
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	284
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	285 #define CYGARC_JMP_BUF_SIZE 6
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	286
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	287 typedef cyg_uint32 hal_jmp_buf[CYGARC_JMP_BUF_SIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	288
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	289 externC int hal_setjmp(hal_jmp_buf env);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	290 externC void hal_longjmp(hal_jmp_buf env, int val);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	291
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	292 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	293 // Idle thread code.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	294 // This macro is called in the idle thread loop, and gives the HAL the
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	295 // chance to insert code. Typical idle thread behaviour might be to halt the
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	296 // processor.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	297
42 94fd8fbfe8fe Merge from eCos master repository on 1999-10-05-12:38:44-BST jlarmour parents: 6 diff changeset	298 externC void hal_idle_thread_action(cyg_uint32 loop_count);
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	299
42 94fd8fbfe8fe Merge from eCos master repository on 1999-10-05-12:38:44-BST jlarmour parents: 6 diff changeset	300 #define HAL_IDLE_THREAD_ACTION(_count_) hal_idle_thread_action(_count_)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	301
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	302 //-----------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	303 // Minimal and sensible stack sizes: the intention is that applications
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	304 // 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: diff changeset	305 // proper analysis. Idle thread stack should be this big.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	306
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	307 // THESE ARE NOT INTENDED TO BE MICROMETRICALLY ACCURATE FIGURES.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	308 // THEY ARE HOWEVER ENOUGH TO START PROGRAMMING.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	309 // YOU MUST MAKE YOUR STACKS LARGER IF YOU HAVE LARGE "AUTO" VARIABLES!
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	310
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	311 // This is not a config option because it should not be adjusted except
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	312 // under "enough rope" sort of disclaimers.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	313
182 f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	314 // Stack frame overhead per call. Four arguments, 3 local registers
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	315 // (edi, esi, ebx), four local variables and return address.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	316 #define CYGNUM_HAL_STACK_FRAME_SIZE (12 * 4)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	317
182 f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	318 // Stack needed for a context switch ( sizeof(HAL_SavedRegisters) ).
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	319 #ifdef CYGHWR_HAL_I386_FPU
202 353a011b23b8 Merge from eCos master repository on 2002-01-11-06:43:03-GMT jlarmour parents: 191 diff changeset	320 # define CYGNUM_HAL_STACK_CONTEXT_SIZE ((4 * 12) + 108)
182 f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	321 #else
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	322 # define CYGNUM_HAL_STACK_CONTEXT_SIZE (4 * 12)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	323 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	324
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	325 // Interrupt + call to ISR, interrupt_end() and the DSR
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	326 #define CYGNUM_HAL_STACK_INTERRUPT_SIZE \
182 f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	327 ((4CYGNUM_HAL_STACK_CONTEXT_SIZE) + 4 CYGNUM_HAL_STACK_FRAME_SIZE)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	328
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	329 // We define a minimum stack size as the minimum any thread could ever
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	330 // legitimately get away with. We can throw asserts if users ask for less
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	331 // than this. Allow enough for three interrupt sources - clock, serial and
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	332 // one other
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	333
182 f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST jlarmour parents: 170 diff changeset	334 #if defined(CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	335
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	336 // An interrupt stack which is large enough for all possible interrupt
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	337 // conditions (and only used for that purpose) exists. "User" stacks
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	338 // can therefore be much smaller
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	339
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	340 # define CYGNUM_HAL_STACK_SIZE_MINIMUM \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	341 (2CYGNUM_HAL_STACK_FRAME_SIZE + 2CYGNUM_HAL_STACK_INTERRUPT_SIZE)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	342
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	343 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	344
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	345 // No separate interrupt stack exists. Make sure all threads contain
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	346 // a stack sufficiently large
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	347
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	348 # define CYGNUM_HAL_STACK_SIZE_MINIMUM \
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	349 (((2+3+10)*CYGNUM_HAL_STACK_INTERRUPT_SIZE) + \
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	350 (2*CYGNUM_HAL_STACK_FRAME_SIZE))
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	351
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	352 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	353
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	354 // Now make a reasonable choice for a typical thread size. Pluck figures
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	355 // from thin air and say 15 call frames with an average of 16 words of
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	356 // automatic variables per call frame
72 da3908c9cd10 Merge from eCos master repository on 2000-02-17-18:56:14-GMT jlarmour parents: 66 diff changeset	357
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	358 #define CYGNUM_HAL_STACK_SIZE_TYPICAL \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	359 (CYGNUM_HAL_STACK_SIZE_MINIMUM + \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	360 15 * (CYGNUM_HAL_STACK_FRAME_SIZE+(16*4)))
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	361
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	362 //--------------------------------------------------------------------------
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	363 // Memory access macros
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	364
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	365 #define CYGARC_CACHED_ADDRESS(x) (x)
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	366 #define CYGARC_UNCACHED_ADDRESS(x) (x)
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	367 #define CYGARC_PHYSICAL_ADDRESS(x) (x)
2016 90d7cdcd7787 * include/hal_arch.h: #define CYGARC_VIRTUAL_ADDRESS. asl parents: 210 diff changeset	368 #define CYGARC_VIRTUAL_ADDRESS(x) (x)
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	369
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	370 //--------------------------------------------------------------------------
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	371 // Region size finder
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	372
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	373 #if CYGINT_HAL_I386_MEM_REAL_REGION_TOP
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	374
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	375 externC cyg_uint8 hal_i386_mem_real_region_top( cyg_uint8 _regionend_ );
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	376
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	377 # define HAL_MEM_REAL_REGION_TOP( _regionend_ ) \
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	378 hal_i386_mem_real_region_top( _regionend_ )
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	379 #endif
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	380
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	381 //--------------------------------------------------------------------------
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 72 diff changeset	382 // 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: 72 diff changeset	383 // code in ROM to code in RAM or vice versa).
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 101 diff changeset	384
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 72 diff changeset	385 #define CYGARC_HAL_SAVE_GP()
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 72 diff changeset	386 #define CYGARC_HAL_RESTORE_GP()
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 72 diff changeset	387
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 72 diff changeset	388 //--------------------------------------------------------------------------
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	389 #endif // CYGONCE_HAL_HAL_ARCH_H
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	390 // End of hal_arch.h

Mercurial > ecos

annotate packages/hal/i386/arch/current/include/hal_arch.h @ 3292:7f8e529b4d82 default tip