diff options
Diffstat (limited to 'cpukit/score/cpu')
| -rw-r--r-- | cpukit/score/cpu/hppa1.1/cpu.c | 313 | ||||
| -rw-r--r-- | cpukit/score/cpu/i386/asm.h | 131 | ||||
| -rw-r--r-- | cpukit/score/cpu/i386/cpu.c | 121 | ||||
| -rw-r--r-- | cpukit/score/cpu/i386/rtems/asm.h | 131 | ||||
| -rw-r--r-- | cpukit/score/cpu/i960/asm.h | 107 | ||||
| -rw-r--r-- | cpukit/score/cpu/i960/cpu.c | 124 | ||||
| -rw-r--r-- | cpukit/score/cpu/m68k/asm.h | 127 | ||||
| -rw-r--r-- | cpukit/score/cpu/m68k/cpu.c | 97 | ||||
| -rw-r--r-- | cpukit/score/cpu/m68k/rtems/asm.h | 127 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/asm.h | 98 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/cpu.c | 132 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/cpu_asm.c | 152 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/rtems/asm.h | 98 | ||||
| -rw-r--r-- | cpukit/score/cpu/unix/cpu.c | 529 |
14 files changed, 0 insertions, 2287 deletions
diff --git a/cpukit/score/cpu/hppa1.1/cpu.c b/cpukit/score/cpu/hppa1.1/cpu.c deleted file mode 100644 index b69a172b4e..0000000000 --- a/cpukit/score/cpu/hppa1.1/cpu.c +++ /dev/null @@ -1,313 +0,0 @@ -/* - * HP PA-RISC Dependent Source - * - * COPYRIGHT (c) 1994 by Division Incorporated - * - * To anyone who acknowledges that this file is provided "AS IS" - * without any express or implied warranty: - * permission to use, copy, modify, and distribute this file - * for any purpose is hereby granted without fee, provided that - * the above copyright notice and this notice appears in all - * copies, and that the name of Division Incorporated not be - * used in advertising or publicity pertaining to distribution - * of the software without specific, written prior permission. - * Division Incorporated makes no representations about the - * suitability of this software for any purpose. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> -#include <rtems/intr.h> -#include <rtems/wkspace.h> - -rtems_status_code hppa_external_interrupt_initialize(void); -void hppa_external_interrupt_enable(unsigned32); -void hppa_external_interrupt_disable(unsigned32); -void hppa_external_interrupt(unsigned32, CPU_Interrupt_frame *); - -/* - * Our interrupt handlers take a 2nd argument: - * a pointer to a CPU_Interrupt_frame - * So we use our own prototype instead of rtems_isr_entry - */ - -typedef rtems_isr ( *hppa_rtems_isr_entry )( - rtems_vector_number, - CPU_Interrupt_frame * - ); - - -/* - * who are we? cpu number - * Not used by executive proper, just kept (or not) as a convenience - * for libcpu and libbsp stuff that wants it. - * - * Defaults to 0. If the BSP doesn't like it, it can change it. - */ - -int cpu_number; /* from 0; cpu number in a multi cpu system */ - - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - address of disptaching routine - * - */ - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - register unsigned8 *fp_context; - unsigned32 iva; - unsigned32 iva_table; - int i; - - extern void IVA_Table(void); - - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - /* - * XXX; need to setup fpsr smarter perhaps - */ - - fp_context = (unsigned8*) &_CPU_Null_fp_context; - for (i=0 ; i<sizeof(Context_Control_fp); i++) - *fp_context++ = 0; - - /* - * Set _CPU_Default_gr27 here so it will hopefully be the correct - * global data pointer for the entire system. - */ - - asm volatile( "stw %%r27,%0" : "=m" (_CPU_Default_gr27): ); - - /* - * Stabilize the interrupt stuff - */ - - (void) hppa_external_interrupt_initialize(); - - /* - * Set the IVA to point to physical address of the IVA_Table - */ - - iva_table = (unsigned32) IVA_Table; - HPPA_ASM_LPA(0, iva_table, iva); - set_iva(iva); - - _CPU_Table = *cpu_table; -} - -/* _CPU_ISR_install_vector - * - * This kernel routine installs the RTEMS handler for the - * specified vector. - * - * Input parameters: - * vector - interrupt vector number - * old_handler - former ISR for this vector number - * new_handler - replacement ISR for this vector number - * - * Output parameters: NONE - * - */ - -/* - * HPPA has 8w for each vector instead of an address to jump to. - * We put the actual ISR address in '_ISR_vector_table'. This will - * be pulled by the code in the vector. - */ - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - *old_handler = _ISR_Vector_table[vector]; - - _ISR_Vector_table[vector] = new_handler; - - if (vector >= HPPA_INTERRUPT_EXTERNAL_BASE) - { - unsigned32 external_vector; - - external_vector = vector - HPPA_INTERRUPT_EXTERNAL_BASE; - if (new_handler) - hppa_external_interrupt_enable(external_vector); - else - /* XXX this can never happen due to _ISR_Is_valid_user_handler */ - hppa_external_interrupt_disable(external_vector); - } -} - - -/* - * Support for external and spurious interrupts on HPPA - * - * TODO: - * delete interrupt.c etc. - * Count interrupts - * make sure interrupts disabled properly - * should handler check again for more interrupts before exit? - * How to enable interrupts from an interrupt handler? - * Make sure there is an entry for everything in ISR_Vector_Table - */ - -#define DISMISS(mask) set_eirr(mask) -#define DISABLE(mask) set_eiem(get_eiem() & ~(mask)) -#define ENABLE(mask) set_eiem(get_eiem() | (mask)) -#define VECTOR_TO_MASK(v) (1 << (31 - (v))) - -/* - * Init the external interrupt scheme - * called by bsp_start() - */ - -rtems_status_code -hppa_external_interrupt_initialize(void) -{ - rtems_isr_entry ignore; - - /* mark them all unused */ - - DISABLE(~0); - DISMISS(~0); - - /* install the external interrupt handler */ - rtems_interrupt_catch((rtems_isr_entry) hppa_external_interrupt, - HPPA_INTERRUPT_EXTERNAL_INTERRUPT, &ignore) ; - - return RTEMS_SUCCESSFUL; -} - -/* - * Enable a specific external interrupt - */ - -void -hppa_external_interrupt_enable(unsigned32 v) -{ - unsigned32 isrlevel; - - _CPU_ISR_Disable(isrlevel); - ENABLE(VECTOR_TO_MASK(v)); - _CPU_ISR_Enable(isrlevel); -} - -/* - * Does not clear or otherwise affect any pending requests - */ - -void -hppa_external_interrupt_disable(unsigned32 v) -{ - unsigned32 isrlevel; - - _CPU_ISR_Disable(isrlevel); - DISABLE(VECTOR_TO_MASK(v)); - _CPU_ISR_Enable(isrlevel); -} - -void -hppa_external_interrupt_spurious_handler(unsigned32 vector, - CPU_Interrupt_frame *iframe) -{ -/* XXX should not be printing :) - printf("spurious external interrupt: %d at pc 0x%x; disabling\n", - vector, iframe->Interrupt.pcoqfront); -*/ - DISMISS(VECTOR_TO_MASK(vector)); - DISABLE(VECTOR_TO_MASK(vector)); -} - -void -hppa_external_interrupt_report_spurious(unsigned32 spurious, - CPU_Interrupt_frame *iframe) -{ - int v; - for (v=0; v < HPPA_EXTERNAL_INTERRUPTS; v++) - if (VECTOR_TO_MASK(v) & spurious) - hppa_external_interrupt_spurious_handler(v, iframe); - DISMISS(spurious); -} - - -/* - * External interrupt handler. - * This is installed as cpu interrupt handler for - * HPPA_INTERRUPT_EXTERNAL_INTERRUPT. It vectors out to - * specific external interrupt handlers. - */ - -void -hppa_external_interrupt(unsigned32 vector, - CPU_Interrupt_frame *iframe) -{ - unsigned32 mask; - unsigned32 *vp, *max_vp; - unsigned32 external_vector; - unsigned32 global_vector; - hppa_rtems_isr_entry handler; - - max_vp = &_CPU_Table.external_interrupt[_CPU_Table.external_interrupts]; - while ( (mask = (get_eirr() & get_eiem())) ) - { - for (vp = _CPU_Table.external_interrupt; (vp < max_vp) && mask; vp++) - { - unsigned32 m; - - external_vector = *vp; - global_vector = external_vector + HPPA_INTERRUPT_EXTERNAL_BASE; - m = VECTOR_TO_MASK(external_vector); - handler = (hppa_rtems_isr_entry) _ISR_Vector_table[global_vector]; - if ((m & mask) && handler) - { - DISMISS(m); - mask &= ~m; - (*handler)(global_vector, iframe); - } - } - - if (mask != 0) { - if ( _CPU_Table.spurious_handler ) - (*((hppa_rtems_isr_entry) _CPU_Table.spurious_handler))( - mask, - iframe - ); - else - hppa_external_interrupt_report_spurious(mask, iframe); - } - } -} - -/* - * Halt the system. - * Called by the _CPU_Fatal_halt macro - * - * XXX - * Later on, this will allow us to return to the prom. - * For now, we just ignore 'type_of_halt' - */ - -void -hppa_cpu_halt(unsigned32 type_of_halt, - unsigned32 the_error) -{ - unsigned32 isrlevel; - - _CPU_ISR_Disable(isrlevel); - - asm volatile( "copy %0,%%r1" : : "r" (the_error) ); - HPPA_ASM_BREAK(1, 0); -} diff --git a/cpukit/score/cpu/i386/asm.h b/cpukit/score/cpu/i386/asm.h deleted file mode 100644 index f123defcd9..0000000000 --- a/cpukit/score/cpu/i386/asm.h +++ /dev/null @@ -1,131 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __i386_ASM_h -#define __i386_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <i386.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -/* - * Looks like there is a bug in gcc 2.6.2 where this is not - * defined correctly when configured as i386-coff and - * i386-aout. - */ - -#undef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ % - -/* -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif -*/ - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -#define eax REG (eax) -#define ebx REG (ebx) -#define ecx REG (ecx) -#define edx REG (edx) -#define esi REG (esi) -#define edi REG (edi) -#define esp REG (esp) -#define ebp REG (ebp) - -#define ax REG (ax) -#define bx REG (bx) -#define cx REG (cx) -#define dx REG (dx) -#define si REG (si) -#define di REG (di) -#define sp REG (sp) -#define bp REG (bp) - -#define ah REG (ah) -#define al REG (al) - -#define cs REG (cs) -#define ds REG (ds) -#define es REG (es) -#define fs REG (fs) -#define gs REG (gs) -#define ss REG (ss) - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/i386/cpu.c b/cpukit/score/cpu/i386/cpu.c deleted file mode 100644 index 05a836f7e3..0000000000 --- a/cpukit/score/cpu/i386/cpu.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Intel i386 Dependent Source - * - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> -#include <rtems/wkspace.h> - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - address of disptaching routine - */ - - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - register unsigned16 fp_status asm ("ax"); - register unsigned8 *fp_context; - - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - _CPU_Table = *cpu_table; - - /* - * The following code saves a NULL i387 context which is given - * to each task at start and restart time. The following code - * is based upon that provided in the i386 Programmer's - * Manual and should work on any coprocessor greater than - * the i80287. - * - * NOTE: The NO RTEMS_WAIT form of the coprocessor instructions - * MUST be used in case there is not a coprocessor - * to wait for. - */ - - fp_status = 0xa5a5; - asm volatile( "fninit" ); - asm volatile( "fnstsw %0" : "=a" (fp_status) : "0" (fp_status) ); - - if ( fp_status == 0 ) { - - fp_context = _CPU_Null_fp_context; - - asm volatile( "fsave (%0)" : "=r" (fp_context) - : "0" (fp_context) - ); - } -} - -/* _CPU_ISR_install_vector - * - * This kernel routine installs the RTEMS handler for the - * specified vector. - * - * Input parameters: - * vector - interrupt vector number - * old_handler - former ISR for this vector number - * new_handler - replacement ISR for this vector number - * - * Output parameters: NONE - * - */ - -void _ISR_Handler_0(), _ISR_Handler_1(); - -#define PER_ISR_ENTRY \ - (((unsigned32) _ISR_Handler_1 - (unsigned32) _ISR_Handler_0)) - -#define _Interrupt_Handler_entry( _vector ) \ - (((unsigned32)_ISR_Handler_0) + ((_vector) * PER_ISR_ENTRY)) - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - i386_IDT_slot idt; - unsigned32 unique_handler; - - /* calculate the unique entry point for this vector */ - unique_handler = _Interrupt_Handler_entry( vector ); - - /* build the IDT entry */ - idt.offset_0_15 = ((unsigned32) unique_handler) & 0xffff; - idt.segment_selector = i386_get_cs(); - idt.reserved = 0x00; - idt.p_dpl = 0x8e; /* present, ISR */ - idt.offset_16_31 = ((unsigned32) unique_handler) >> 16; - - /* install the IDT entry */ - i386_Install_idt( - (unsigned32) &idt, - _CPU_Table.interrupt_table_segment, - (unsigned32) _CPU_Table.interrupt_table_offset + (8 * vector) - ); - - /* "portable" part */ - *old_handler = _ISR_Vector_table[ vector ]; - _ISR_Vector_table[ vector ] = new_handler; -} diff --git a/cpukit/score/cpu/i386/rtems/asm.h b/cpukit/score/cpu/i386/rtems/asm.h deleted file mode 100644 index f123defcd9..0000000000 --- a/cpukit/score/cpu/i386/rtems/asm.h +++ /dev/null @@ -1,131 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __i386_ASM_h -#define __i386_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <i386.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -/* - * Looks like there is a bug in gcc 2.6.2 where this is not - * defined correctly when configured as i386-coff and - * i386-aout. - */ - -#undef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ % - -/* -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif -*/ - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -#define eax REG (eax) -#define ebx REG (ebx) -#define ecx REG (ecx) -#define edx REG (edx) -#define esi REG (esi) -#define edi REG (edi) -#define esp REG (esp) -#define ebp REG (ebp) - -#define ax REG (ax) -#define bx REG (bx) -#define cx REG (cx) -#define dx REG (dx) -#define si REG (si) -#define di REG (di) -#define sp REG (sp) -#define bp REG (bp) - -#define ah REG (ah) -#define al REG (al) - -#define cs REG (cs) -#define ds REG (ds) -#define es REG (es) -#define fs REG (fs) -#define gs REG (gs) -#define ss REG (ss) - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/i960/asm.h b/cpukit/score/cpu/i960/asm.h deleted file mode 100644 index 1c40601473..0000000000 --- a/cpukit/score/cpu/i960/asm.h +++ /dev/null @@ -1,107 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __i960_ASM_h -#define __i960_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <i960.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -#define g0 REG (g0) -#define g1 REG (g1) -#define g2 REG (g2) -#define g3 REG (g3) -#define g4 REG (g4) -#define g5 REG (g5) -#define g6 REG (g6) -#define g7 REG (g7) -#define g8 REG (g8) -#define g9 REG (g9) -#define g10 REG (g10) -#define g11 REG (g11) -#define g12 REG (g12) -#define g13 REG (g13) -#define g14 REG (g14) -#define g15 REG (g15) - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ diff --git a/cpukit/score/cpu/i960/cpu.c b/cpukit/score/cpu/i960/cpu.c deleted file mode 100644 index 68ecb0525c..0000000000 --- a/cpukit/score/cpu/i960/cpu.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * Intel i960CA Dependent Source - * - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#if defined(__i960CA__) || defined(__i960_CA__) || defined(__i960CA) -#else -#warning "*** ENTIRE FILE IMPLEMENTED & TESTED FOR CA ONLY ***" -#warning "*** THIS FILE WILL NOT COMPILE ON ANOTHER FAMILY MEMBER ***" -#endif - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - address of disptaching routine - * - * OUTPUT PARAMETERS: NONE - */ - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - _CPU_Table = *cpu_table; - -} - -/* _CPU__ISR_Install_vector - * - * Install the RTEMS vector wrapper in the CPU's interrupt table. - * - * Input parameters: - * vector - interrupt vector number - * old_handler - former ISR for this vector number - * new_handler - replacement ISR for this vector number - * - * Output parameters: NONE - * - */ - -#define _Is_vector_caching_enabled( _prcb ) \ - ((_prcb)->control_tbl->icon & 0x2000) - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - i960ca_PRCB *prcb = _CPU_Table.Prcb; - proc_ptr *cached_intr_tbl = NULL; - -/* The i80960CA does not support vectors 0-7. The first 9 entries - * in the Interrupt Table are used to manage pending interrupts. - * Thus vector 8, the first valid vector number, is actually in - * slot 9 in the table. - */ - - *old_handler = _ISR_Vector_table[ vector ]; - - _ISR_Vector_table[ vector ] = new_handler; - - prcb->intr_tbl[ vector + 1 ] = _ISR_Handler; - if ( _Is_vector_caching_enabled( prcb ) ) - if ( (vector & 0xf) == 0x2 ) /* cacheable? */ - cached_intr_tbl[ vector >> 4 ] = _ISR_Handler; -} - -/*PAGE - * - * _CPU_Install_interrupt_stack - */ - -#define soft_reset( prcb ) \ - { register i960ca_PRCB *_prcb = (prcb); \ - register unsigned32 *_next=0; \ - register unsigned32 _cmd = 0x30000; \ - asm volatile( "lda next,%1; \ - sysctl %0,%1,%2; \ - next: mov g0,g0" \ - : "=d" (_cmd), "=d" (_next), "=d" (_prcb) \ - : "0" (_cmd), "1" (_next), "2" (_prcb) ); \ - } - -void _CPU_Install_interrupt_stack( void ) -{ - i960ca_PRCB *prcb = _CPU_Table.Prcb; - unsigned32 level; - - /* - * Set the Interrupt Stack in the PRCB and force a reload of it. - * Interrupts are disabled for safety. - */ - - _CPU_ISR_Disable( level ); - - prcb->intr_stack = _CPU_Interrupt_stack_low; - - soft_reset( prcb ); - - _CPU_ISR_Enable( level ); -} diff --git a/cpukit/score/cpu/m68k/asm.h b/cpukit/score/cpu/m68k/asm.h deleted file mode 100644 index 068c58058c..0000000000 --- a/cpukit/score/cpu/m68k/asm.h +++ /dev/null @@ -1,127 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __M68k_ASM_h -#define __M68k_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <m68k.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define a7 REG (a7) - -#define msp REG (msp) -#define usp REG (usp) -#define isp REG (isp) -#define sr REG (sr) - -#define fp0 REG (fp0) -#define fp1 REG (fp1) -#define fp2 REG (fp2) -#define fp3 REG (fp3) -#define fp4 REG (fp4) -#define fp5 REG (fp5) -#define fp6 REG (fp6) -#define fp7 REG (fp7) - -#define fpc REG (fpc) -#define fpi REG (fpi) -#define fps REG (fps) - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/m68k/cpu.c b/cpukit/score/cpu/m68k/cpu.c deleted file mode 100644 index 45484da1f4..0000000000 --- a/cpukit/score/cpu/m68k/cpu.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Motorola MC68020 Dependent Source - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - entry pointer to thread dispatcher - * - * OUTPUT PARAMETERS: NONE - */ - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - _CPU_Table = *cpu_table; - -} - -/* _CPU_ISR_install_vector - * - * This kernel routine installs the RTEMS handler for the - * specified vector. - * - * Input parameters: - * vector - interrupt vector number - * new_handler - replacement ISR for this vector number - * old_handler - former ISR for this vector number - * - * Output parameters: NONE - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - proc_ptr *interrupt_table = NULL; - - m68k_get_vbr( interrupt_table ); - - *old_handler = _ISR_Vector_table[ vector ]; - - _ISR_Vector_table[ vector ] = new_handler; - interrupt_table[ vector ] = _ISR_Handler; -} - - -/*PAGE - * - * _CPU_Install_interrupt_stack - */ - -void _CPU_Install_interrupt_stack( void ) -{ -#if ( M68K_HAS_SEPARATE_STACKS == 1 ) - void *isp = _CPU_Interrupt_stack_high; - - asm volatile ( "movec %0,%%isp" : "=r" (isp) : "0" (isp) ); -#else -#warning "FIX ME... HOW DO I INSTALL THE INTERRUPT STACK!!!" -#endif -} - diff --git a/cpukit/score/cpu/m68k/rtems/asm.h b/cpukit/score/cpu/m68k/rtems/asm.h deleted file mode 100644 index 068c58058c..0000000000 --- a/cpukit/score/cpu/m68k/rtems/asm.h +++ /dev/null @@ -1,127 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __M68k_ASM_h -#define __M68k_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <m68k.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define a7 REG (a7) - -#define msp REG (msp) -#define usp REG (usp) -#define isp REG (isp) -#define sr REG (sr) - -#define fp0 REG (fp0) -#define fp1 REG (fp1) -#define fp2 REG (fp2) -#define fp3 REG (fp3) -#define fp4 REG (fp4) -#define fp5 REG (fp5) -#define fp6 REG (fp6) -#define fp7 REG (fp7) - -#define fpc REG (fpc) -#define fpi REG (fpi) -#define fps REG (fps) - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/no_cpu/asm.h b/cpukit/score/cpu/no_cpu/asm.h deleted file mode 100644 index 69b1f0f825..0000000000 --- a/cpukit/score/cpu/no_cpu/asm.h +++ /dev/null @@ -1,98 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __NO_CPU_ASM_h -#define __NO_CPU_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <no_cpu.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* - * define macros for all of the registers on this CPU - * - * EXAMPLE: #define d0 REG (d0) - */ - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/no_cpu/cpu.c b/cpukit/score/cpu/no_cpu/cpu.c deleted file mode 100644 index f09d935c2d..0000000000 --- a/cpukit/score/cpu/no_cpu/cpu.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * XXX CPU Dependent Source - * - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> -#include <rtems/wkspace.h> - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - address of disptaching routine - */ - - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - /* - * The thread_dispatch argument is the address of the entry point - * for the routine called at the end of an ISR once it has been - * decided a context switch is necessary. On some compilation - * systems it is difficult to call a high-level language routine - * from assembly. This allows us to trick these systems. - * - * If you encounter this problem save the entry point in a CPU - * dependent variable. - */ - - _CPU_Thread_dispatch_pointer = thread_dispatch; - - /* - * XXX; If there is not an easy way to initialize the FP context - * during Context_Initialize, then it is usually easier to - * save an "uninitialized" FP context here and copy it to - * the task's during Context_Initialize. - */ - - /* XXX: FP context initialization support */ - - _CPU_Table = *cpu_table; -} - -/* _CPU_ISR_install_vector - * - * This kernel routine installs the RTEMS handler for the - * specified vector. - * - * Input parameters: - * vector - interrupt vector number - * old_handler - former ISR for this vector number - * new_handler - replacement ISR for this vector number - * - * Output parameters: NONE - * - */ - - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - *old_handler = _ISR_Vector_table[ vector ]; - - /* - * If the interrupt vector table is a table of pointer to isr entry - * points, then we need to install the appropriate RTEMS interrupt - * handler for this vector number. - */ - - /* - * We put the actual user ISR address in '_ISR_vector_table'. This will - * be used by the _ISR_Handler so the user gets control. - */ - - _ISR_Vector_table[ vector ] = new_handler; -} - -/*PAGE - * - * _CPU_Install_interrupt_stack - */ - -void _CPU_Install_interrupt_stack( void ) -{ -} - -/*PAGE - * - * _CPU_Internal_threads_Idle_thread_body - * - * NOTES: - * - * 1. This is the same as the regular CPU independent algorithm. - * - * 2. If you implement this using a "halt", "idle", or "shutdown" - * instruction, then don't forget to put it in an infinite loop. - * - * 3. Be warned. Some processors with onboard DMA have been known - * to stop the DMA if the CPU were put in IDLE mode. This might - * also be a problem with other on-chip peripherals. So use this - * hook with caution. - */ - -void _CPU_Internal_threads_Idle_thread_body( void ) -{ - - for( ; ; ) - /* insert your "halt" instruction here */ ; -} diff --git a/cpukit/score/cpu/no_cpu/cpu_asm.c b/cpukit/score/cpu/no_cpu/cpu_asm.c deleted file mode 100644 index 26246a93c2..0000000000 --- a/cpukit/score/cpu/no_cpu/cpu_asm.c +++ /dev/null @@ -1,152 +0,0 @@ -/* cpu_asm.c ===> cpu_asm.S or cpu_asm.s - * - * This file contains the basic algorithms for all assembly code used - * in an specific CPU port of RTEMS. These algorithms must be implemented - * in assembly language - * - * NOTE: This is supposed to be a .S or .s file NOT a C file. - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -/* - * This is supposed to be an assembly file. This means that system.h - * and cpu.h should not be included in a "real" cpu_asm file. An - * implementation in assembly should include "cpu_asm.h> - */ - -#include <rtems/system.h> -#include <rtems/cpu.h> -/* #include "cpu_asm.h> */ - -/* - * _CPU_Context_save_fp_context - * - * This routine is responsible for saving the FP context - * at *fp_context_ptr. If the point to load the FP context - * from is changed then the pointer is modified by this routine. - * - * Sometimes a macro implementation of this is in cpu.h which dereferences - * the ** and a similarly named routine in this file is passed something - * like a (Context_Control_fp *). The general rule on making this decision - * is to avoid writing assembly language. - */ - -void _CPU_Context_save_fp( - void **fp_context_ptr -) -{ -} - -/* - * _CPU_Context_restore_fp_context - * - * This routine is responsible for restoring the FP context - * at *fp_context_ptr. If the point to load the FP context - * from is changed then the pointer is modified by this routine. - * - * Sometimes a macro implementation of this is in cpu.h which dereferences - * the ** and a similarly named routine in this file is passed something - * like a (Context_Control_fp *). The general rule on making this decision - * is to avoid writing assembly language. - */ - -void _CPU_Context_restore_fp( - void **fp_context_ptr -) -{ -} - -/* _CPU_Context_switch - * - * This routine performs a normal non-FP context switch. - */ - -void _CPU_Context_switch( - Context_Control *run, - Context_Control *heir -) -{ -} - -/* - * _CPU_Context_restore - * - * This routine is generallu used only to restart self in an - * efficient manner. It may simply be a label in _CPU_Context_switch. - * - * NOTE: May be unnecessary to reload some registers. - */ - -void _CPU_Context_restore( - Context_Control *new_context -) -{ -} - -/* void __ISR_Handler() - * - * This routine provides the RTEMS interrupt management. - * - */ - -void _ISR_Handler() -{ - /* - * This discussion ignores a lot of the ugly details in a real - * implementation such as saving enough registers/state to be - * able to do something real. Keep in mind that the goal is - * to invoke a user's ISR handler which is written in C and - * uses a certain set of registers. - * - * Also note that the exact order is to a large extent flexible. - * Hardware will dictate a sequence for a certain subset of - * _ISR_Handler while requirements for setting - */ - - /* - * At entry to "common" _ISR_Handler, the vector number must be - * available. On some CPUs the hardware puts either the vector - * number or the offset into the vector table for this ISR in a - * known place. If the hardware does not give us this information, - * then the assembly portion of RTEMS for this port will contain - * a set of distinct interrupt entry points which somehow place - * the vector number in a known place (which is safe if another - * interrupt nests this one) and branches to _ISR_Handler. - * - * save some or all context on stack - * may need to save some special interrupt information for exit - * - * #if ( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE ) - * if ( _ISR_Nest_level == 0 ) - * switch to software interrupt stack - * #endif - * - * _ISR_Nest_level++; - * - * _Thread_Dispatch_disable_level++; - * - * (*_ISR_Vector_table[ vector ])( vector ); - * - * if ( --__ISR_Nest_level == 0 ) { - * if ( _Context_Switch_necessary || _ISR_Signals_to_thread_executing ) - * call _Thread_Dispatch() or prepare to return to _ISR_Dispatch - * #if ( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE ) - * restore stack - * #endif - * } - * - * prepare to get out of interrupt - * return from interrupt - * - */ -} - diff --git a/cpukit/score/cpu/no_cpu/rtems/asm.h b/cpukit/score/cpu/no_cpu/rtems/asm.h deleted file mode 100644 index 69b1f0f825..0000000000 --- a/cpukit/score/cpu/no_cpu/rtems/asm.h +++ /dev/null @@ -1,98 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __NO_CPU_ASM_h -#define __NO_CPU_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <no_cpu.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* - * define macros for all of the registers on this CPU - * - * EXAMPLE: #define d0 REG (d0) - */ - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/unix/cpu.c b/cpukit/score/cpu/unix/cpu.c deleted file mode 100644 index ed94953d58..0000000000 --- a/cpukit/score/cpu/unix/cpu.c +++ /dev/null @@ -1,529 +0,0 @@ -/* - * HP PA-RISC CPU Dependent Source - * - * - * To anyone who acknowledges that this file is provided "AS IS" - * without any express or implied warranty: - * permission to use, copy, modify, and distribute this file - * for any purpose is hereby granted without fee, provided that - * the above copyright notice and this notice appears in all - * copies, and that the name of Division Incorporated not be - * used in advertising or publicity pertaining to distribution - * of the software without specific, written prior permission. - * Division Incorporated makes no representations about the - * suitability of this software for any purpose. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> -#include <rtems/wkspace.h> -/* - * In order to get the types and prototypes used in this file under - * Solaris 2.3, it is necessary to pull the following magic. - */ - -#if defined(solaris) -#warning "Ignore the undefining __STDC__ warning" -#undef __STDC__ -#define __STDC__ 0 -#undef _POSIX_C_SOURCE -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <signal.h> -#include <time.h> - -extern void set_vector(proc_ptr, int, int); -extern void _Thread_Dispatch(void); - -extern unsigned32 _Thread_Dispatch_disable_level; -extern unsigned32 _SYSTEM_ID; -extern boolean _Context_Switch_necessary; - - -rtems_status_code signal_initialize(void); -void Stray_signal(int); -void signal_enable(unsigned32); -void signal_disable(unsigned32); -void interrupt_handler(); - -sigset_t UNIX_SIGNAL_MASK; -jmp_buf default_context; - -/* - * Which cpu are we? Used by libcpu and libbsp. - */ - -int cpu_number; - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - address of disptaching routine - */ - - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - unsigned32 i; - - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - /* - * The thread_dispatch argument is the address of the entry point - * for the routine called at the end of an ISR once it has been - * decided a context switch is necessary. On some compilation - * systems it is difficult to call a high-level language routine - * from assembly. This allows us to trick these systems. - * - * If you encounter this problem save the entry point in a CPU - * dependent variable. - */ - - _CPU_Thread_dispatch_pointer = thread_dispatch; - - /* - * XXX; If there is not an easy way to initialize the FP context - * during Context_Initialize, then it is usually easier to - * save an "uninitialized" FP context here and copy it to - * the task's during Context_Initialize. - */ - - /* XXX: FP context initialization support */ - - _CPU_Table = *cpu_table; - -#if defined(hppa1_1) && defined(RTEMS_UNIXLIB) - /* - * HACK - set the _SYSTEM_ID to 0x20c so that setjmp/longjmp - * will handle the full 32 floating point registers. - * - * NOTE: Is this a bug in HPUX9? - */ - - _SYSTEM_ID = 0x20c; -#endif - - /* - * get default values to use in _CPU_Context_Initialize() - */ - - setjmp(default_context); - - /* - * Block all the signals except SIGTRAP for the debugger - * and SIGABRT for fatal errors. - */ - - _CPU_ISR_Set_signal_level(1); - - sigfillset(&UNIX_SIGNAL_MASK); - sigdelset(&UNIX_SIGNAL_MASK, SIGTRAP); - sigdelset(&UNIX_SIGNAL_MASK, SIGABRT); - sigdelset(&UNIX_SIGNAL_MASK, SIGIOT); - sigdelset(&UNIX_SIGNAL_MASK, SIGCONT); - - sigprocmask(SIG_BLOCK, &UNIX_SIGNAL_MASK, 0); - - /* - * Set the handler for all signals to be signal_handler - * which will then vector out to the correct handler - * for whichever signal actually happened. Initially - * set the vectors to the stray signal handler. - */ - - for (i = 0; i < 32; i++) - (void)set_vector(Stray_signal, i, 1); - - signal_initialize(); -} - -/* _CPU_ISR_install_vector - * - * This kernel routine installs the RTEMS handler for the - * specified vector. - * - * Input parameters: - * vector - interrupt vector number - * old_handler - former ISR for this vector number - * new_handler - replacement ISR for this vector number - * - * Output parameters: NONE - * - */ - - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - *old_handler = _ISR_Vector_table[ vector ]; - - /* - * If the interrupt vector table is a table of pointer to isr entry - * points, then we need to install the appropriate RTEMS interrupt - * handler for this vector number. - */ - - /* - * We put the actual user ISR address in '_ISR_vector_table'. This will - * be used by the _ISR_Handler so the user gets control. - */ - - _ISR_Vector_table[ vector ] = new_handler; -} - -/*PAGE - * - * _CPU_Install_interrupt_stack - */ - -void _CPU_Install_interrupt_stack( void ) -{ -} - -/*PAGE - * - * _CPU_Internal_threads_Idle_thread_body - * - * NOTES: - * - * 1. This is the same as the regular CPU independent algorithm. - * - * 2. If you implement this using a "halt", "idle", or "shutdown" - * instruction, then don't forget to put it in an infinite loop. - * - * 3. Be warned. Some processors with onboard DMA have been known - * to stop the DMA if the CPU were put in IDLE mode. This might - * also be a problem with other on-chip peripherals. So use this - * hook with caution. - */ - -void _CPU_Internal_threads_Idle_thread_body( void ) -{ - while (1) - pause(); -} - -void _CPU_Context_Initialize( - Context_Control *_the_context, - unsigned32 *_stack_base, - unsigned32 _size, - unsigned32 _new_level, - proc_ptr *_entry_point -) -{ - unsigned32 *addr; - unsigned32 jmp_addr; - unsigned32 _stack; - unsigned32 _the_size; - - jmp_addr = (unsigned32) _entry_point; - - _stack = ((unsigned32)(_stack_base) + CPU_STACK_ALIGNMENT); - _stack &= ~(CPU_STACK_ALIGNMENT - 1); - - _the_size = _size & ~(CPU_STACK_ALIGNMENT - 1); - - /* - * Slam our jmp_buf template into the context we are creating - */ - - memcpy(_the_context, default_context, sizeof(jmp_buf)); - - addr = (unsigned32 *)_the_context; - -#if defined(hppa1_1) - *(addr + RP_OFF) = jmp_addr; - *(addr + SP_OFF) = (unsigned32)(_stack + CPU_FRAME_SIZE); - - /* - * See if we are using shared libraries by checking - * bit 30 in 24 off of newp. If bit 30 is set then - * we are using shared libraries and the jump address - * is at what 24 off of newp points to so shove that - * into 24 off of newp instead. - */ - - if (jmp_addr & 0x40000000) { - jmp_addr &= 0xfffffffc; - *(addr + RP_OFF) = (unsigned32)*(unsigned32 *)jmp_addr; - } -#elif defined(sparc) - - /* - * See /usr/include/sys/stack.h in Solaris 2.3 for a nice - * diagram of the stack. - */ - - asm ("ta 0x03"); /* flush registers */ - - *(addr + RP_OFF) = jmp_addr + ADDR_ADJ_OFFSET; - *(addr + SP_OFF) = (unsigned32)(_stack +_the_size - CPU_FRAME_SIZE); - *(addr + FP_OFF) = (unsigned32)(_stack +_the_size); -#else -#error "UNKNOWN CPU!!!" -#endif - - if (_new_level) - _CPU_ISR_Set_signal_level(1); - else - _CPU_ISR_Set_signal_level(0); - -} - -void _CPU_Context_restore( - Context_Control *next -) -{ - longjmp(next->regs, 0); -} - -void _CPU_Context_switch( - Context_Control *current, - Context_Control *next -) -{ - /* - * Save the current context - */ - - if (setjmp(current->regs) == 0) { - - /* - * Switch to the new context - */ - - longjmp(next->regs, 0); - } -} - -void _CPU_Save_float_context( - Context_Control_fp *fp_context -) -{ -} - -void _CPU_Restore_float_context( - Context_Control_fp *fp_context -) -{ -} - -void _CPU_ISR_Set_signal_level(unsigned32 level) -{ - if (level) - _CPU_Disable_signal(); - else - _CPU_Enable_signal(0); -} - - -unsigned32 _CPU_Disable_signal(void) -{ - sigset_t old_mask; - sigset_t empty_mask; - - sigemptyset(&empty_mask); - sigemptyset(&old_mask); - sigprocmask(SIG_BLOCK, &UNIX_SIGNAL_MASK, &old_mask); - - if (memcmp((char *)&empty_mask, (char *)&old_mask, sizeof(sigset_t)) != 0) - return 1; - - return 0; -} - - -void _CPU_Enable_signal(unsigned32 level) -{ - if (level == 0) - sigprocmask(SIG_UNBLOCK, &UNIX_SIGNAL_MASK, 0); -} - - -/* - * Support for external and spurious interrupts on HPPA - * - * TODO: - * delete interrupt.c etc. - * Count interrupts - * make sure interrupts disabled properly - * should handler check again for more interrupts before exit? - * How to enable interrupts from an interrupt handler? - * Make sure there is an entry for everything in ISR_Vector_Table - */ - -/* - * Init the external interrupt scheme - * called by bsp_start() - */ - -rtems_status_code -signal_initialize(void) -{ - struct sigaction act; - sigset_t mask; - - /* mark them all active except for TraceTrap and Abort */ - - sigfillset(&mask); - sigdelset(&mask, SIGTRAP); - sigdelset(&mask, SIGABRT); - sigdelset(&mask, SIGIOT); - sigdelset(&mask, SIGCONT); - sigprocmask(SIG_UNBLOCK, &mask, 0); - - act.sa_handler = interrupt_handler; - act.sa_mask = mask; -#if defined(solaris) - act.sa_flags = SA_RESTART; -#else - act.sa_flags = 0; -#endif - - sigaction(SIGHUP, &act, 0); - sigaction(SIGINT, &act, 0); - sigaction(SIGQUIT, &act, 0); - sigaction(SIGILL, &act, 0); - sigaction(SIGEMT, &act, 0); - sigaction(SIGFPE, &act, 0); - sigaction(SIGKILL, &act, 0); - sigaction(SIGBUS, &act, 0); - sigaction(SIGSEGV, &act, 0); - sigaction(SIGSYS, &act, 0); - sigaction(SIGPIPE, &act, 0); - sigaction(SIGALRM, &act, 0); - sigaction(SIGTERM, &act, 0); - sigaction(SIGUSR1, &act, 0); - sigaction(SIGUSR2, &act, 0); - sigaction(SIGCHLD, &act, 0); - sigaction(SIGCLD, &act, 0); - sigaction(SIGPWR, &act, 0); - sigaction(SIGVTALRM, &act, 0); - sigaction(SIGPROF, &act, 0); - sigaction(SIGIO, &act, 0); - sigaction(SIGWINCH, &act, 0); - sigaction(SIGSTOP, &act, 0); - sigaction(SIGTTIN, &act, 0); - sigaction(SIGTTOU, &act, 0); - sigaction(SIGURG, &act, 0); -/* - * XXX: Really should be on HPUX. - */ - -#if defined(hppa1_1) - sigaction(SIGLOST, &act, 0); -#endif - - return RTEMS_SUCCESSFUL; -} - - -/* - * External interrupt handler. - * This is installed as cpu interrupt handler. - * It vectors out to specific external interrupt handlers. - */ - -void -interrupt_handler(int vector) -{ - if (_ISR_Nest_level++ == 0) { - /* switch to interrupt stack */ - } - - _Thread_Dispatch_disable_level++; - - if (_ISR_Vector_table[vector]) { - _ISR_Vector_table[vector](vector); - } - else { - Stray_signal(vector); - } - - if (_ISR_Nest_level-- == 0) { - /* switch back to original stack */ - } - - _Thread_Dispatch_disable_level--; - - if (_Thread_Dispatch_disable_level == 0 && - (_Context_Switch_necessary || _ISR_Signals_to_thread_executing)) { - _CPU_Enable_signal(0); - _Thread_Dispatch(); - } -} - - -void -Stray_signal(int sig_num) -{ - char buffer[ 80 ]; - - /* - * We avoid using the stdio section of the library. - * The following is generally safe. - */ - - write( - 2, - buffer, - sprintf( buffer, "Stray signal %d\n", sig_num ) - ); - - /* - * If it was a "fatal" signal, then exit here - * If app code has installed a hander for one of these, then - * we won't call Stray_signal, so this is ok. - */ - - switch (sig_num) - { - case SIGINT: - case SIGHUP: - case SIGQUIT: - case SIGILL: - case SIGEMT: - case SIGKILL: - case SIGBUS: - case SIGSEGV: - case SIGTERM: - _CPU_Fatal_error(0x100 + sig_num); - } -} - - -void -_CPU_Fatal_error(unsigned32 error) -{ - setitimer(ITIMER_REAL, 0, 0); - - _exit(error); -} - -int -_CPU_ffs(unsigned32 value) -{ - int output; - - output = ffs(value); - output = output - 1; - - return(output); -} |