/kernel/trunk/arch/ppc32/src/boot/boot.S |
---|
48,14 → 48,14 |
# r3 contains physical address of bootinfo_t |
# r4 contains size of bootinfo_t |
cmpwi r4, 0 |
beq bootinfo_end |
addis r3, r3, 0x8000 |
lis r31, bootinfo@ha |
addi r31, r31, bootinfo@l # r31 = bootinfo |
cmpwi r4, 0 |
beq bootinfo_end |
bootinfo_loop: |
lwz r30, 0(r3) |
/kernel/trunk/arch/mips32/include/boot.h |
---|
0,0 → 1,48 |
/* |
* Copyright (C) 2006 Martin Decky |
* 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. |
*/ |
#ifndef __mips32_BOOT_H__ |
#define __mips32_BOOT_H__ |
#define TASKMAP_MAX_RECORDS 32 |
#include <arch/types.h> |
typedef struct { |
__address addr; |
__u32 size; |
} utask_t; |
typedef struct { |
__u32 cnt; |
utask_t tasks[TASKMAP_MAX_RECORDS]; |
} bootinfo_t; |
extern bootinfo_t bootinfo; |
#endif |
/kernel/trunk/arch/mips32/src/start.S |
---|
182,10 → 182,35 |
/* Load temporary stack */ |
lui $sp, %hi(end_stack) |
ori $sp, $sp, %lo(end_stack) |
/* $a1 contains physical address of bootinfo_t */ |
/* $a2 contains size of bootinfo_t */ |
beq $a2, $0, bootinfo_end |
/* Not sure about this, but might be needed for PIC code???? */ |
lui $gp, 0x8000 |
lui $a3, 0x8000 |
addu $a1, $a1, $a3 |
lui $a3, %hi(bootinfo) |
ori $a3, $a3, %lo(bootinfo) |
bootinfo_loop: |
lw $v0, 0($a1) |
sw $v0, 0($a3) |
addi $a1, $a1, 4 |
addi $a3, $a3, 4 |
addi $a2, $a2, -4 |
bgtz $a2, bootinfo_loop |
nop |
bootinfo_end: |
jal arch_pre_main |
nop |
/kernel/trunk/arch/mips32/src/mips32.c |
---|
28,6 → 28,7 |
#include <arch.h> |
#include <arch/boot.h> |
#include <arch/cp0.h> |
#include <arch/exception.h> |
#include <arch/asm.h> |
60,26 → 61,19 |
#define NORM_EXC ((char *) 0x80000180) |
#define CACHE_EXC ((char *) 0x80000100) |
bootinfo_t bootinfo; |
void arch_pre_main(void) |
{ |
/* Setup usermode */ |
init.cnt = 8; |
init.tasks[0].addr = INIT_ADDRESS; |
init.tasks[0].size = INIT_SIZE; |
init.tasks[1].addr = INIT_ADDRESS + 0x100000; |
init.tasks[1].size = INIT_SIZE; |
init.tasks[2].addr = INIT_ADDRESS + 0x200000; |
init.tasks[2].size = INIT_SIZE; |
init.tasks[3].addr = INIT_ADDRESS + 0x300000; |
init.tasks[3].size = INIT_SIZE; |
init.tasks[4].addr = INIT_ADDRESS + 0x400000; |
init.tasks[4].size = INIT_SIZE; |
init.tasks[5].addr = INIT_ADDRESS + 0x500000; |
init.tasks[5].size = INIT_SIZE; |
init.tasks[6].addr = INIT_ADDRESS + 0x600000; |
init.tasks[6].size = INIT_SIZE; |
init.tasks[7].addr = INIT_ADDRESS + 0x700000; |
init.tasks[7].size = INIT_SIZE; |
init.cnt = bootinfo.cnt; |
__u32 i; |
for (i = 0; i < bootinfo.cnt; i++) { |
init.tasks[i].addr = bootinfo.tasks[i].addr; |
init.tasks[i].size = bootinfo.tasks[i].size; |
} |
} |
void arch_pre_mm_init(void) |