diff options
Diffstat (limited to 'arch/sparc/include/asm/asmmacro.h')
| -rw-r--r-- | arch/sparc/include/asm/asmmacro.h | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/arch/sparc/include/asm/asmmacro.h b/arch/sparc/include/asm/asmmacro.h index a995bf8aba3f..a0e28ef02558 100644 --- a/arch/sparc/include/asm/asmmacro.h +++ b/arch/sparc/include/asm/asmmacro.h @@ -6,17 +6,6 @@ #ifndef _SPARC_ASMMACRO_H #define _SPARC_ASMMACRO_H -#include <asm/btfixup.h> -#include <asm/asi.h> - -#define GET_PROCESSOR4M_ID(reg) \ - rd %tbr, %reg; \ - srl %reg, 12, %reg; \ - and %reg, 3, %reg; - -#define GET_PROCESSOR4D_ID(reg) \ - lda [%g0] ASI_M_VIKING_TMP1, %reg; - /* All trap entry points _must_ begin with this macro or else you * lose. It makes sure the kernel has a proper window so that * c-code can be called. @@ -31,10 +20,26 @@ /* All traps low-level code here must end with this macro. */ #define RESTORE_ALL b ret_trap_entry; clr %l6; -/* sun4 probably wants half word accesses to ASI_SEGMAP, while sun4c+ - likes byte accesses. These are to avoid ifdef mania. */ - -#define lduXa lduba -#define stXa stba +/* Support for run-time patching of single instructions. + * This is used to handle the differences in the ASI for + * MMUREGS for LEON and SUN. + * + * Sample: + * LEON_PI(lda [%g0] ASI_LEON_MMUREGS, %o0 + * SUN_PI_(lda [%g0] ASI_M_MMUREGS, %o0 + * PI == Patch Instruction + * + * For LEON we will use the first variant, + * and for all other we will use the SUN variant. + * The order is important. + */ +#define LEON_PI(...) \ +662: __VA_ARGS__ + +#define SUN_PI_(...) \ + .section .leon_1insn_patch, "ax"; \ + .word 662b; \ + __VA_ARGS__; \ + .previous #endif /* !(_SPARC_ASMMACRO_H) */ |