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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-04-29 17:40:21 +1000 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2020-05-26 14:30:29 +1000 |
| commit | 6327e0c158308c8b93ab01ada93753cb1b4364bf (patch) | |
| tree | b3f634dacf10c3aaddb3b3aab351667d3ad0a52f /include/asm-utils.h | |
| parent | fbc6c882727a5e16716f169b186d5e4d1da0b8b6 (diff) | |
| download | skiboot-6327e0c158308c8b93ab01ada93753cb1b4364bf.zip skiboot-6327e0c158308c8b93ab01ada93753cb1b4364bf.tar.gz skiboot-6327e0c158308c8b93ab01ada93753cb1b4364bf.tar.bz2 | |
opal entry: Fix LE skiboot clobbering r10 argument
Fortunately no OPAL calls seem to use 8 arguments yet.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'include/asm-utils.h')
| -rw-r--r-- | include/asm-utils.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/asm-utils.h b/include/asm-utils.h index 73416cd..18325a8 100644 --- a/include/asm-utils.h +++ b/include/asm-utils.h @@ -28,16 +28,17 @@ /* Load an address via the TOC */ #define LOAD_ADDR_FROM_TOC(r, e) ld r,e@got(%r2) -/* This must preserve LR, so can't use Linux kernel's FIXUP_ENDIAN */ +/* This must preserve LR, may only clobber r11-r12, so can't use Linux kernel's + * FIXUP_ENDIAN */ #define SWITCH_ENDIAN \ .long 0xa600607d; /* mfmsr r11 */ \ .long 0x01006b69; /* xori r11,r11,1 */ \ .long 0xa64b7b7d; /* mthsrr1 r11 */ \ .long 0xa602687d; /* mflr r11 */ \ .long 0x05009f42; /* bcl 20,31,$+4 */ \ - .long 0xa602487d; /* mflr r10 */ \ - .long 0x14004a39; /* addi r10,r10,20 */ \ - .long 0xa64b5a7d; /* mthsrr0 r10 */ \ + .long 0xa602887d; /* mflr r12 */ \ + .long 0x14008c39; /* addi r12,r12,20 */ \ + .long 0xa64b9a7d; /* mthsrr0 r12 */ \ .long 0xa603687d; /* mtlr r11 */ \ .long 0x2402004c /* hrfid */ |