asmmacro.h
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- /* asmmacro.h: Assembler macros.
- *
- * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)
- */
- #ifndef _SPARC_ASMMACRO_H
- #define _SPARC_ASMMACRO_H
- #include <linux/config.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;
- /* Blackbox */
- #define GET_PROCESSOR_ID(reg)
- sethi %hi(___b_smp_processor_id), %reg;
- sethi %hi(boot_cpu_id), %reg;
- ldub [%reg + %lo(boot_cpu_id)], %reg;
- #define GET_PROCESSOR_MID(reg, tmp)
- rd %tbr, %reg;
- sethi %hi(C_LABEL(mid_xlate)), %tmp;
- srl %reg, 12, %reg;
- or %tmp, %lo(C_LABEL(mid_xlate)), %tmp;
- and %reg, 3, %reg;
- ldub [%tmp + %reg], %reg;
- #define GET_PROCESSOR_OFFSET(reg, tmp)
- GET_PROCESSOR_ID(reg)
- sethi %hi(C_LABEL(cpu_offset)), %tmp;
- sll %reg, 2, %reg;
- or %tmp, %lo(C_LABEL(cpu_offset)), %tmp;
- ld [%tmp + %reg], %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) */