| /* asmmacro.h: Assembler macros. |
| * |
| * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu) |
| */ |
| |
| #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. |
| */ |
| #define SAVE_ALL_HEAD \ |
| sethi %hi(trap_setup), %l4; \ |
| jmpl %l4 + %lo(trap_setup), %l6; |
| #define SAVE_ALL \ |
| SAVE_ALL_HEAD \ |
| nop; |
| |
| /* 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. */ |
| |
| #ifdef CONFIG_SUN4 |
| #define lduXa lduha |
| #define stXa stha |
| #else |
| #define lduXa lduba |
| #define stXa stba |
| #endif |
| |
| #endif /* !(_SPARC_ASMMACRO_H) */ |
