/SPARTAN/trunk/arch/mips/src/exception.c |
---|
65,7 → 65,7 |
/* decode exception number and process the exception */ |
switch (excno) { |
case EXC_Int: |
interrupt(); |
interrupt(pstate); |
break; |
case EXC_TLBL: |
case EXC_TLBS: |
/SPARTAN/trunk/arch/mips/src/asm.S |
---|
117,13 → 117,6 |
cp0_prid_read: cp0_read $15 |
.global bios_write |
bios_write: |
lw $2, 0x80001020 |
lw $2, 0x6c($2) |
j $2 |
nop |
.global cpu_halt |
cpu_halt: |
j cpu_halt |
/SPARTAN/trunk/arch/mips/src/console.c |
---|
31,25 → 31,16 |
#include <arch/cp0.h> |
#include <arch/console.h> |
#include <arch.h> |
#include <arch/drivers/arc.h> |
#include <arch/arch.h> |
static void arc_putchar(const char ch) |
{ |
int cnt; |
pri_t pri; |
/* TODO: Should be spinlock? */ |
pri = cpu_priority_high(); |
bios_write(1, &ch, 1, &cnt); |
cpu_priority_restore(pri); |
} |
/** Putchar that works with MSIM & gxemul */ |
static void cons_putchar(const char ch) |
{ |
*((char *) VIDEORAM) = ch; |
} |
/** Putchar that works with simics */ |
static void serial_putchar(const char ch) |
{ |
int i; |
67,8 → 58,10 |
void console_init(void) |
{ |
if (arc_enabled()) |
putchar_func = arc_putchar; |
/* The LSR on the start usually contains this value */ |
if (*SERIAL_LSR == 0x60) |
else if (*SERIAL_LSR == 0x60) |
putchar_func = serial_putchar; |
else |
putchar_func = cons_putchar; |
/SPARTAN/trunk/arch/mips/src/mips.c |
---|
36,6 → 36,7 |
#include <arch/console.h> |
#include <memstr.h> |
#include <arch/interrupt.h> |
#include <arch/drivers/arc.h> |
#include <print.h> |
53,6 → 54,8 |
/* It is not assumed by default */ |
cpu_priority_high(); |
init_arc(); |
/* Copy the exception vectors to the right places */ |
memcpy(TLB_EXC, (char *)tlb_refill_entry, EXCEPTION_JUMP_SIZE); |
memcpy(NORM_EXC, (char *)exception_entry, EXCEPTION_JUMP_SIZE); |
79,6 → 82,7 |
cp0_compare_write(cp0_compare_value + cp0_count_read()); |
console_init(); |
arc_print_memory_map(); |
} |
void arch_post_mm_init(void) |
110,5 → 114,3 |
{ |
supervisor_sp = (__address) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
} |
/SPARTAN/trunk/arch/mips/src/mm/tlb.c |
---|
40,14 → 40,12 |
char *symbol = ""; |
char *sym2 = ""; |
if (THREAD) { |
char *s = get_symtab_entry(pstate->epc); |
if (s) |
symbol = s; |
s = get_symtab_entry(pstate->ra); |
if (s) |
sym2 = s; |
} |
char *s = get_symtab_entry(pstate->epc); |
if (s) |
symbol = s; |
s = get_symtab_entry(pstate->ra); |
if (s) |
sym2 = s; |
panic("%X: tlb_refill exception at %X(%s<-%s)\n", cp0_badvaddr_read(), |
pstate->epc, symbol,sym2); |
} |
56,11 → 54,9 |
{ |
char *symbol = ""; |
if (THREAD) { |
char *s = get_symtab_entry(pstate->epc); |
if (s) |
symbol = s; |
} |
char *s = get_symtab_entry(pstate->epc); |
if (s) |
symbol = s; |
panic("%X: TLB exception at %X(%s)\n", cp0_badvaddr_read(), |
pstate->epc, symbol); |
} |
/SPARTAN/trunk/arch/mips/src/interrupt.c |
---|
32,7 → 32,26 |
#include <arch/cp0.h> |
#include <time/clock.h> |
#include <panic.h> |
#include <print.h> |
#include <symtab.h> |
#include <arch/drivers/arc.h> |
static void print_regdump(struct exception_regdump *pstate) |
{ |
char *pcsymbol = ""; |
char *rasymbol = ""; |
char *s = get_symtab_entry(pstate->epc); |
if (s) |
pcsymbol = s; |
s = get_symtab_entry(pstate->ra); |
if (s) |
rasymbol = s; |
printf("PC: %X(%s) RA: %X(%s)\n",pstate->epc,pcsymbol, |
pstate->ra,rasymbol); |
} |
pri_t cpu_priority_high(void) |
{ |
pri_t pri = (pri_t) cp0_status_read(); |
57,7 → 76,7 |
return cp0_status_read(); |
} |
void interrupt(void) |
void interrupt(struct exception_regdump *pstate) |
{ |
__u32 cause; |
int i; |
69,10 → 88,10 |
if (cause & (1 << i)) { |
switch (i) { |
case 0: /* SW0 - Software interrupt 0 */ |
cp0_cause_write(cause & ~(1 << 8)); /* clear SW0 interrupt */ |
cp0_cause_write(cp0_cause_read() & ~(1 << 8)); /* clear SW0 interrupt */ |
break; |
case 1: /* SW1 - Software interrupt 1 */ |
cp0_cause_write(cause & ~(1 << 9)); /* clear SW1 interrupt */ |
cp0_cause_write(cp0_cause_read() & ~(1 << 9)); /* clear SW1 interrupt */ |
break; |
case 2: /* IRQ0 */ |
case 3: /* IRQ1 */ |
79,6 → 98,7 |
case 4: /* IRQ2 */ |
case 5: /* IRQ3 */ |
case 6: /* IRQ4 */ |
print_regdump(pstate); |
panic("unhandled interrupt %d\n", i); |
break; |
case TIMER_INTERRUPT: |
/SPARTAN/trunk/arch/mips/src/drivers/arc.c |
---|
0,0 → 1,108 |
/* |
* Copyright (C) 2005 Ondrej Palkovsky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include <arch/drivers/arc.h> |
#include <arch/mm/page.h> |
#include <print.h> |
#include <arch.h> |
#include <arch/byteorder.h> |
/* This is a good joke, SGI HAS different types than NT bioses... */ |
/* Here is the SGI type */ |
static char *basetypes[] = { |
"ExceptionBlock", |
"SystemParameterBlock", |
"FreeContiguous", |
"FreeMemory", |
"BadMemory", |
"LoadedProgram", |
"FirmwareTemporary", |
"FirmwarePermanent" |
}; |
static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000); |
static arc_func_vector_t *arc_entry; |
static void _arc_putchar(char ch); |
/** Initialize ARC structure |
* |
* @return 0 - ARC OK, -1 - ARC does not exist |
*/ |
int init_arc(void) |
{ |
if (sbp->signature != ARC_MAGIC) { |
sbp = NULL; |
return -1; |
} |
arc_entry = sbp->firmwarevector; |
arc_putchar('A'); |
arc_putchar('R'); |
arc_putchar('C'); |
arc_putchar('\n'); |
} |
/** Return true if ARC is available */ |
int arc_enabled(void) |
{ |
return sbp != NULL; |
} |
void arc_print_memory_map(void) |
{ |
arc_memdescriptor_t *desc; |
if (!sbp) { |
printf("ARC not enabled.\n"); |
return; |
} |
printf("Memory map:\n"); |
desc = arc_entry->getmemorydescriptor(NULL); |
while (desc) { |
printf("%s: %d (size: %dKB)\n",basetypes[desc->type], |
desc->basepage * 4096, |
desc->basecount*4); |
desc = arc_entry->getmemorydescriptor(desc); |
} |
} |
/** Print charactor to console */ |
void arc_putchar(char ch) |
{ |
__u32 cnt; |
pri_t pri; |
/* TODO: Should be spinlock? */ |
pri = cpu_priority_high(); |
arc_entry->write(1, &ch, 1, &cnt); |
cpu_priority_restore(pri); |
} |