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| author | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
| commit | d702d12167a2c05a346f49aac7a311d597762495 (patch) | |
| tree | baae42c299cce34d6df24b5d01f8b1d0b481bd9a /arch/s390/boot/compressed/head31.S | |
| parent | 9418c65f9bd861d0f7e39aab9cfb3aa6f2275d11 (diff) | |
| parent | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (diff) | |
| download | linux-d702d12167a2c05a346f49aac7a311d597762495.tar.gz linux-d702d12167a2c05a346f49aac7a311d597762495.tar.bz2 linux-d702d12167a2c05a346f49aac7a311d597762495.zip | |
Merge with mainline to remove plat-omap/Kconfig conflict
Conflicts:
arch/arm/plat-omap/Kconfig
Diffstat (limited to 'arch/s390/boot/compressed/head31.S')
| -rw-r--r-- | arch/s390/boot/compressed/head31.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/s390/boot/compressed/head31.S b/arch/s390/boot/compressed/head31.S new file mode 100644 index 000000000000..2a5523a32bcc --- /dev/null +++ b/arch/s390/boot/compressed/head31.S @@ -0,0 +1,51 @@ +/* + * Startup glue code to uncompress the kernel + * + * Copyright IBM Corp. 2010 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#include <linux/init.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> +#include <asm/page.h> +#include "sizes.h" + +__HEAD + .globl startup_continue +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 |