diff options
Diffstat (limited to 'external/opal-prd/thunk.S')
| -rw-r--r-- | external/opal-prd/thunk.S | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/external/opal-prd/thunk.S b/external/opal-prd/thunk.S index 9d97183..773df26 100644 --- a/external/opal-prd/thunk.S +++ b/external/opal-prd/thunk.S @@ -1,4 +1,12 @@ #include <endian.h> +#include <asm/unistd.h> + +#ifndef __NR_switch_endian +#define __NR_switch_endian 363 +#endif + +/* a constant to use in the SI field of a little-endian D-form instruction */ +#define le_si16(x) (((x & 0xff) << 24) | ((x & 0xff00) << 8)) .text @@ -10,8 +18,6 @@ call_be: -#define __NR_fast_endian_switch 0x1ebe - /* Before we switch, we need to perform some ABI * conversion. We are currently running LE with the * new ABI v2. The GPR content is the same, we do @@ -45,14 +51,15 @@ call_be: #if __BYTE_ORDER == __LITTLE_ENDIAN /* Switch to the "other endian" */ - li %r0,__NR_fast_endian_switch + li %r0,__NR_switch_endian sc /* Branch to CTR */ .long 0x2104804e /* (byteswapped bctrl) */ /* Switch endian back */ - .long 0xbe1e0038 /* byteswapped li %r0,__NR_fast_endian_switch */ + .long 0x00000038 | le_si16(__NR_switch_endian) + /* byteswapped li %r0,__NR_switch_endian */ .long 0x02000044 /* byteswapped sc */ #else bctrl @@ -110,7 +117,7 @@ call_le: mtlr %r0 /* Switch endian back to BE */ - li %r0,__NR_fast_endian_switch + li %r0,__NR_switch_endian sc /* Return to BE */ @@ -125,7 +132,8 @@ call_le: .pushsection ".text","ax" ;\ .globl name##_thunk ;\ name##_thunk: ;\ - .long 0xbe1e0038 /* byteswapped li %r0,__NR_fast_endian_switch */ ;\ + .long 0x00000038 | le_si16(__NR_switch_endian) ;\ + /* byteswapped li %r0,__NR_switch_endian */ ;\ .long 0x02000044 /* byteswapped sc */ ;\ ld %r11,name@got(%r2) ;\ b call_le ;\ |