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| author | Vasily Gorbik <gor@linux.ibm.com> | 2018-09-14 18:35:46 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-09-20 14:20:29 +0300 |
| commit | 4e62d458850069c9f05e03f99be1a817967e201f (patch) | |
| tree | 36930d2ada8892e0b888c1cddcf9cba830b36c33 /arch/s390/boot/compressed/head.S | |
| parent | 26f4414a45b808f83d42d6fd2fbf4a59ef25e84b (diff) | |
| download | linux-4e62d458850069c9f05e03f99be1a817967e201f.tar.xz | |
s390: clean up stacks setup
Replace hard coded stack frame overhead values with STACK_FRAME_OVERHEAD
definition. Avoid unnecessary arithmetic instructions.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/boot/compressed/head.S')
| -rw-r--r-- | arch/s390/boot/compressed/head.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/boot/compressed/head.S b/arch/s390/boot/compressed/head.S index df8dbbc17bcc..4041fcfd8980 100644 --- a/arch/s390/boot/compressed/head.S +++ b/arch/s390/boot/compressed/head.S @@ -12,6 +12,7 @@ #include <asm/asm-offsets.h> #include <asm/thread_info.h> #include <asm/page.h> +#include <asm/ptrace.h> #include "sizes.h" __HEAD @@ -20,7 +21,6 @@ ENTRY(startup_decompressor) .LPG1: # setup stack lg %r15,.Lstack-.LPG1(%r13) - aghi %r15,-160 brasl %r14,decompress_kernel # Set up registers for memory mover. We move the decompressed image to # 0x100000, where startup_continue of the decompressed image is supposed @@ -45,7 +45,7 @@ mover_end: .align 8 .Lstack: - .quad 0x8000 + (1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)) + .quad 0x8000 + THREAD_SIZE - STACK_FRAME_OVERHEAD .Loffset: .quad 0x100000 .Lmvsize: |