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/*
* Startup glue code to uncompress the kernel
*
* Copyright IBM Corp. 2010
*
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#include <linux/init.h>
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
#include "sizes.h"
__HEAD
ENTRY(startup_continue)
basr %r13,0 # get base
.LPG1:
# setup stack
l %r15,.Lstack-.LPG1(%r13)
ahi %r15,-96
l %r1,.Ldecompress-.LPG1(%r13)
basr %r14,%r1
# setup registers for memory mover & branch to target
lr %r4,%r2
l %r2,.Loffset-.LPG1(%r13)
la %r4,0(%r2,%r4)
l %r3,.Lmvsize-.LPG1(%r13)
lr %r5,%r3
# move the memory mover someplace safe
la %r1,0x200
mvc 0(mover_end-mover,%r1),mover-.LPG1(%r13)
# decompress image is started at 0x11000
lr %r6,%r2
br %r1
mover:
mvcle %r2,%r4,0
jo mover
br %r6
mover_end:
.align 8
.Lstack:
.long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
.Ldecompress:
.long decompress_kernel
.Loffset:
.long 0x11000
.Lmvsize:
.long SZ__bss_start
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