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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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