| /* 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) */ |