| 0,0 → 1,80 |
|---|
| # |
| # Copyright (C) 2005 Jakub Jermar |
| # 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/asm/regname.h> |
| #include <arch/boot/boot.h> |
| #include <arch/boot/memmap.h> |
| |
| .section K_TEXT_START, "ax" |
| |
| .global kernel_image_start |
| kernel_image_start: |
| |
| # load temporary stack |
| |
| lis sp, end_stack@ha |
| addi sp, sp, end_stack@l |
| |
| # r10 contains physical address to memmap_t |
| # from boot loader |
| |
| lis r4, 0x80000000@ha |
| addi r4, r4, 0x80000000@l |
| |
| add r10, r10, r4 |
| |
| lis r4, memmap@ha |
| addi r4, r4, memmap@l # r4 = memmap |
| |
| lwz r5, 0(r10) # memmap->total |
| stw r5, 0(r4) |
| |
| lwzu r5, 4(r10) # memmap->count |
| stwu r5, 4(r4) |
| |
| cmpwi r5, 0 |
| beq memmap_end |
| |
| mtctr r5 |
| memmap_loop: |
| |
| lwzu r5, 4(r10) # memmap->zones[i].start |
| stwu r5, 4(r4) |
| |
| lwzu r5, 4(r10) # memmap->zones[i].size |
| stwu r5, 4(r4) |
| |
| bdnz memmap_loop |
| memmap_end: |
| |
| b main_bsp |
| |
| .section K_DATA_START, "aw", @progbits |
| |
| .space TEMP_STACK_SIZE |
| end_stack: |